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SX 737

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670 views62 pages

SX 737

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1alllan1
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Hifi ENGINE For more Hi-Fi manuals and set-up information please visit www.hifiengine.com SERVICE MANUAL AM/FM STEREO RECEIVER X=737 KCU, GN, F NOTE: ‘THE MODEL SX-737 COMES IN THREE VERSIONS DISTINGUISHED AS FOLLOWS: Round label on rear panel Voltage Type | KcU 120V only L (U.S.A.) and CSA (Canada) approved. GN 220V only 'SEMCO (Sweden), NEMCO (Norway) and DEMCO (Denmark) approved. 110V, 120V, 130V, 220V|General export model and 240V F Y PIONEER’ <74002Y61D> es Onn PF WN > = ° 11. CONTENTS SPECIFICATIONS ...0. cece eee eee estes tetas ee eneenes 3 FRONT PANEL FACILITIES ......... 0.200 00eeeeeeeeeee es 5 CONNECTION DIAGRAM ...... 00.200 cee eee ee eee ene es 7 DISASSEMBLY .........00c ccc ee eee ences e ee eee eee eneees ‘i BLOCK DIAGRAM 2.2... 00. sec cece ete e ener ee eee nese eee ° PARTS ANDP.C. BOARD LOCATION ...........000ee eee eee a DIAL CORD STRINGING ... ALIGNMENT PROCEDURE ..........----+---05 EXPLODED VIEW AND PARTS LIST SCHEMATIC DIAGRAMS, P.C. BOARD PATTERNS AND PARTS LIST 10.1 Circuit Connection Diagram and Miscellaneous Parts . . 10.2 Tuner Assembly (AWE-043) 10.3 Equalizer Amplifier Assembly (AWF-011) 10.4 Microphone Amplifier Assembly (AWM-066) .........--- 0-55 40 10.5 Control Amplifier Assembly (AWG-030) ........-..02--2 00+ 42 10.6 Power Amplifier Assembly (AWH-033) .......-.-- 000s eee ees 46 10.7 Protection Circuit Assembly (AWM-025) 2 51 10.8 Power Supply Circuit Assembly (AWR-057) 54 10.9 Power Supply Circuit Assembly (AWR-058) for GN model ....-. + 57 10.10 Switch & Volume Circuit Assembly (AWX-071) . 2.6.0 eee eee 60 10.11 Speaker Switch Circuit Assembly (AWS-076) 10.12 Push Switch Circuit Assembly (AWS-077) . . 10.13 5P Connector Assembly (AWX-062) PACKING METHOD AND PARTS NUMBER 1. SPECIFICATIONS SEMICONDUCTORS FET Ics Transistors . . Diodes .. AMPLIFIER SECTION Continuous Power Output 20Hz~20kHz (Both channels driven) . 1kHz (Both channelsdriven) ...... Harmonic Distortion (20Hz~20kHz, Continuous Power Output) (1W+1W Power Output) Intermodulation Distortion {Continuous Power Output) (1W+1W Power Output) Power Bandwidth (IHF, Both channels driven) Output Speaker Headphones. . Damping Factor (1kHz, 82) Residual Hum & Noise (82, Pre & Power amplifier) Input Sensitivity/Impedance PHONO PHONO Overload Level (rms/p-p) . mic AUX : TAPE PB 1,2. TAPE PB 2 (DIN connector} Output Level/Impedance TAPE REC 1, 2 : TAPE REC 2 (DIN connector) . Frequency Response PHONO (RIAA equalization) AUX, TAPE PB Tone Control BASS .... TREBLE Filter Low . HIGH . Loudness Contour (Volume control set at —40dB position) . . Hum & Noise (IHF, short-cire A Network) PHONO .. MIC .... AUX, TAPE PB. 35W + 35W (822: Rated Power) 40w + 40w (42) 40w + 4ow (82) SOW + SOW (42) . Less than 0.5% « Less than 0.05% . Less than 0.5% « Less than 0.05% 5Hz~60kHz (T.H.D. 0.5%) . A,B, A+B, (42~162) . 42~162 . More than 40 Less than 0.5mV + 2,.5mV/50kQ, 170mV/480mV a * 2.5mV/50k2 +» 150mV/50kQ. ~ 150mMV/50kQ 150mV/50kQ. =» 150mV + 30mV/80k2 +» 30H2~15kHz #0.3dB +. 15Hz~40kHz *95dB +» £10dB (100Hz) . £10dB (10kHz) «+ —9dB (50Hz) 6dB/oct . —9dB (10kHz) 6dB/oct + +8dB (100Hz), +3dB (10kHz) + More than 70dB . More than 65dB More than 95dB FM SECTION Usable Sensitivity (IHF) . Capture Ratio (IHF) Selectivity (IHF) . Signal-to-Noise Ratio Image Rejection (98MHz) . . . IF Rejection (98MHz) ..... Spurious Rejection AM Suppression Harmonic Distortion: MONO .. STEREO : Frequency Response Stereo Separation: tkHz .... 50Hz~10kHz sees Sub Carrier Suppression . Antenna Input Muting ...... AM SECTION Sensitivity (IHF, Ferrite antenna) . (IHF, Ext. antenna) - Selectivity ....... Signal-to-Noise Ratio Image Rejection IF Rejection MISCELLANEOUS Power Requirements..........- Power Consumption .........++ Dimensions ......-------+--+ Weight: Without Package With Package FURNISHED PARTS FM T-type Antenna ........... Operating Instructions Fuse 3A... Fuse 1.54 NOTE: +. 1.9uV + 1.008 - 60dB . 70dB . 80dB = 100dB = 10048 . 85d . Less than 0.2% . Less than 0.4% 20Hz~15kHz *224B 5OHz~10kHz*9:2dB « More than 40dB « More than 30dB - 40dB + 3009 Balanced 75Q. Unbalanced . ON-OFF + 300nV/m + 15uV . 3548 + 50dB . 40dB - 70dB AC 120V 60Hz, 220V 50/60Hz or 110, 120, 130, 220 and 240V (switchable) 50/60Hz 190W (UL approved model only) 280W (Others model) 500(W) x 158(H) x 410(D)mm_ 19-11/16 x 6-1/4 x 16-1/8 in. + 13.2kg (29 1b) + 15.7kg (34 Ib 9 02) 1 1 i (6 line voltage model only) Specifications and the design subject to possible modification without notice due to improvements. 2. FRONT PANEL FACILITIES FM TUNING METER When tuning in an FM station, first employ the SIGNAL. meter, then perform fine tuning adjustment in order to center the needle of this meter. SIGNAL METER. Tune in both AM and FM stations for maximum deflection of the meter indicator to the right. POWER SWITCH ‘AC power is turned on by setting this switch to the ON TUNING CONTROL. Turn this knob to tune in desired broadcast station. FM STEREO INDICATOR. Lights when stereophonic FM broadcast is being received. FM MUTING BUTTON ‘Set to ON (undepressed position) when listening to FM broadcasts. This will suppress inter-station noise and weak interfering stations when tuning in a desired station. If the desired station is weak, however, set this button to the OFF (depressed) position (up) position, About 3 to 6 seconds will elapse after the power is turned on before sound is obtained. This is due to the operation of a protection circuit which prevents Unpleasant sound from emanating from the speakers. PHONES JACK For plugging in stereo headphones. A wide variety of high quality headphones are available from Pioneer. SPEAKER BUTTONS Buttons for selecting A or B speaker system connected to ‘Aor B output terminals. A Speaker system A operates B: Speaker system B operates ‘NOTES: 1. When employing headphones, speakers can be tumed off by setting the SPEAKERS. buttons 10 the OFF (undepressed) postion 2. Two pair (A, B) of speaker ystems can be used at the same time with A and B switches pushed. BASS & TREBLE CONTROLS ‘Adjust bass and treble. Flat response is obtained at center of rotation. Turning the controls clockwise or counter- clockwise from center will boost or diminish the tone as desired FILTER SWITCHES Low: Set to ON when low pitched noise, such as rumble of phono motor, is objec tionable. At other times, set this switch of OFF. HIGH: Set to ON when high pitched noise, such as record scratch noise, is objectionable. Atother times, set this switch to OFF. REC SELECTOR SWITCH: Permits one program source to be heard through the speakers while another is being recorded on tape deck connected to the TAPE 1 jacks. FM: To record FN broadcasts. In this case, ‘AM broadcast: cannot be heard. PHONO: For recording from records. SOURCE: When recording from same source select: ed by the FUNCTION switch. DUPLICATE: For duplicating or editing recorded tape by employing two tape decks connected to the TAPE 1 & 2 jacks. TAPE MONITOR (1 & 2) SWITCHES ‘These switches permit the recorded sound to be monk tored when recording with a tape deck. They also allow listening to tapes (playback). Vaseeeeese+ Employ this switch when tape deck con- nected to TAPE 1 (REC & PB) jack being used for playback, or for monitor ing a recording in progress. Employ this switch when tape deck con- nected to TAPE 2 (REC & PB or REC/PB DIN connector) jacks is being used for playback, or for monitoring a recording in progress. LOUDNESS SWITCH Compensates for human ear response to low sound volumes. Set to ON to enhance low and high frequencies when listening at low volume levels. 6 MODE BUTTON Selecs stereo oF mono sound. STEREO: Leave itundepressed. MONO: Depress it for m.nophonic sound into Which the left and right channel signals blend. MIC INPUT JACK Accepts the plug of the microphone. FUNCTION SWITCH ‘Selects desired program source. AM: ‘AM reception, FM: FM reception with automatic switching for stereo or mono programs. The STEREO indicator lights when the broad- cast is in stereo. PHONO: When playing turntable connected to the PHONO jacks. Mic: When using microphone. AUX To play component connected to the AUX input jacks. VOLUME CONTROL Adjusts sound volume of both speakers and headphones. Clockwise rotation increases volume. BALANCE CONTROL, ‘Adjusts balance between left and right speakers. When turned clockwise, left channel volume decreases while fight channel volume increases. Turning the control counterclockwise has the opposite effect. 3. CONNECTION DIAGRAM SPEAKER SYSTEMS ‘ouTDOOR ‘AM ANTENNA, RIGHT Lert FM ANTENNA T-TYPE ANTENNA [indoor or outdoor) CHANNEL CHANNEL Lert RIGHT CHANNEL CHANNEL es] |es e| le 0 |O FM DE-EMPHASIS SWITCH In some countries, the receiver {dalivered with a selector switch for adjurting the FM deemphasis from 60 to 7Susec. If your unit € ‘sound range gives of weakness move. the de-r- ‘phasis switch to ite other pos fon, (5 line voltage model only) GROUND connector cord | {e4'Pioneer PP-1011 TAPE DECK TURNTABLE CARTRIDGE openreel oF Fare PLAYER (cetsate dec) 4. DISASSEMBLY 1. 2. 3. To remove the wooden cabinet, remove 2 screws each fastening either side and lift the cabinet while sliding it backwards. Pull off all the knobs, To remove the front panel, remove 2 screws fastening its top and nuts and washers holding each of BASS and FUNCTION control shafts. To remove the bottom plate, remove a total of 10 screws. FRONT PANEL ANTENNA RIGHT CHANNEL] LEFT CHANNEL LEVEL DIAGRAM SPEAKER 16V CaW/8.D) _ T ‘S50mV 2 AUK 50m __ _ ~ TAPE PB ISO nV 8 — ~ PAD MIG 25my FREQUENCY AT kHz SWITCHES Si FUNCTION 1 aM 2M 3 PHONO a MIC 5 AUK Sz_ REC SELECTOR 1 FM 2. PHONO 3 SOURCE 4 DUPLICATE $9 TAPE MONITOR 1 S4 TAPE MONITOR 2 Ss LOUDNESS Se LOW FILTER 87 HIGH FILTER Sa MODE 39 FM MUTING Si SPEAKER A $n SPEAKER B Siz POWER Sig RELAY, 6. PARTS AND P.C. BOARD LOCATION 11 Top View AKA-002-0 AKE017-0 AWR-058-0 (GN) [— BINDING POST FOR GROUND [— POWER SUPPLY CIRCUIT ASSEMBLY AWR-057-0 (KCU, [— ANTENNA TERMINAL BOARD KNOB (TUNING) AAA-024-0 FRONT PANEL ASSEMBLY ANB-273-0 FI ) TUNING SHAFT ASSEMBLY AXA-057-0 TUNING PULLEY ASSEMBLY AXA-05B-A - TUNER ASSEMBLY AWE-043-0 ‘— AC POWER CORD ADG-005-A (KCU) ADG-004-0 (F} ‘— SPEAKER OUTPUT TERMINAL AKA001-0 L_ RELAY ASR-007-0 POWER AMPLIFIER ASSEMBLY AWH-033-0 ELECTROLYTIC CAPACITOR ({6,800uF, 50V) ACH-014-0 POWER TRANSFORMER ATT-186-0 (KCU} ATT-192-0 (F) ATT-191-0 (GN) 12 Bottom View [—— FERRITE LOOPSTICK ANTENNA ATB-026-0 FERRITE ANTENNA HOLDER ASSEMBLY AXB-001-A, FUSE HOLDER (AC POWER) AKR-007-0 (KCU) AKR-001-0 (F) AC SOCKET AKP-004-0 (KCU, F) KNOB (POWER, FILTER, TAPE MONITOR, LOUDNESS) AAD-040-8 LEVER SWITCH (POWER) ASK-066-0 (KCU) ASK-067-0(F) ASK-068-0 (GN) CONTROL AMPLIFIER ASSEMBLY AWG-030-0 | E , sf a a ASSEMBLY AMPLIFIER AWM-025-C ASSEMBLY 141 ‘- PHONO JACK-B (4 JACKS) AWF-O11-0 AKB-015-0 SWITCH & VOLUME CIRCUIT ASSEMBLY '~ PHONO JACK-A (4 JACKS) AWX.071-0 AKB-014-0 MICROPHONE AMPLIFIER ‘— ANTENNA CLAMPER ASSEMBLY AEC-154-0 AWM-066-0 PROTECTION CIRCUIT — EQUALIZER KNOB (BASS, TREBLE, REC ———" SELECTOR, BALANCE, VOLUME, FUNCTION) AAB-068-0 7. DIAL CORD STRINGING 1, Turn the tuning knob until the plates of the tuning capacitor are as far out as possible. 2. Fasten one end of the cord to the boss on the tuning pulley and pass it through the slit. 3. Run the cord round pulleys A, B, C and D in this order and wind 3 turns round the tuning shaft. 4. Wind the cord 2 turns round the tuning pulley and tie the end to the spring while tensioning the spring slightly. Trim off excess cord. 5. Turn the tuning knob fully clockwise and fix the dial pointer to the cord at the point where it indicates “10” on the dial scale. DIAL POINTER TUNING SHAFT PULLEY D PULLEY B PULLEY A 13 8. ALIGNMENT PROCEDURE FM Section 1, Switch positions on the SX-737: FUNCTION ........-- FM FM MUTING OFF (pressed in) POWER . ae ON REC SELECTOR SOURCE 2. Connection of instruments: FM Signal Generator (FM SG) ... Connect to FM ANTENNA termi- nals through 3002 dummy antenna. Distortion meter}. .........-- Connect in parallel to TAPE REC Oscilloscope jack . 3, Set FM SG to 100% modulation (t75kHz deviation) at 400Hz and 1004B output. 4, Tune FM SG and SX-737 to dial readings of 87.4MHz(dial pointer set to left end) and adjust T4 so that signal meter makes maximum deflection. Adjust T6 (lower core) so that tuning meter points to the center. Set FM SG output to 8 ~ 10dB and adjust T1, T2 and TS to maximinze audio frequency output level, ————________________- |_ 7. Tune FM SG and SX-787 to dial readings of 106MHz and adjust TC4 so that signal meter makes maximum deflection when FM SG output is 10048. -|—|- 8 Set FM SG output to 8~10dB and adjust TC1, TC2 and TCS to maximize audio frequency output level. 9. Tune FM SG and SX-787 to dial readings of 90MHz and adjust T5 so that signal meter makes maximum deflection when FM SG output is 100¢B. 10, Set FM SG output to 8~10dB and adjust T1, T2 and T3 to maximize audio frequency output level, ————_______|_}| | © Repeat steps 7 through 10 so that output is maximized when the dial indicates the given frequencies. 11. Tune FM SG and SX-737 to dial readings of 90MHz and adjust TS to maximize audio frequency output level when FM SG output is 8~104B.— 12, Detune SX-737 so that only noise is received. 13, Adjust T6 (lower core) so that tuning meter points to the center. —____|_| 14, Tune FM 8G and SX-737 to dial readings of 98MHz. Fine tune SX-737, observing tuning meter. 15. Set FM SG output to 60dB and adjust T6 (upper core) to minimize distortion. 16. Set FM SG output to 100dB and adjust VR1 so that signal meter readings 5. \\ 2 a cadeaa@a eo ° AC Voltmeter \ © ele/2) Ee} ae @ en00 oocoo@ oo sooo] @* TC aq TC] TUNER ASSEMBLY (AWE-043) 14 FM MPX Section » The SX-737 incorporates a PLL demodulator circuit. This adj stment should only be made when MPX IC has been replaced. This adjustment should be made after completion of FM section adjustment. Switch positions on the SX-737 FUNCTION ----- FM MUTING POWER : REC SELECTOR Connection of instrument FM Signal Generator (FM SG) - - « MPX Signal Generator (MPX SG) - - Oscilloscope Distortion meter tee Tune FM SG and SX-787 to dial readi + OFF (pressed in) Connect to FM ANTENNA termi- nals through 3000 dummy antenna. Connect to FM SG’s external mo- dulator terminals. - Connect horizontal input to MPX SG’s PILOT OUT terminals and vertical input to No. 18 terminal of tuner assembly. Connect to TAPE REC iack. ings of 98MHz. Set MPX SG to +67.5kHz deviation at 1kHz for left and right channels and FM SG output to 60dB. Produce a Lissajous pattern on oscilloscope and adjust VR2 to make the pattern stil, — Set MPX SG to +67.5kHz deviation at 1kHz for left and right channels and to +7.5kHz deviation for 19kHz pilot signal. Set FM SG output to 60dB. Adjust T5 to minimize distortion of audio frequencies for left or right channel, — @a o ccaceea@a jo coool? epoc0@ ce =) © s © TUNER ASSEMBLY (AWE-043) 1b AM Section 1 Be 16 Switch positions on the SX-737: FUNCTION . . AM POWER .. . ON REC SELECTOR . SOURCE Connection of instruments: AM Signal Generator (AM SG). . . . Connect to AM ANTENNA termi- nals in series with dummy antenna (1kQ resistor). Set AM SG to 30% modulation at 400Hz and 30dB output. Tune AM SG and SX-737 to dial readings of 600kHz and adjust T7 to maximize audio frequency output level. (Adjust core of ferrite loopstick antenna at the same time.) Tune AM SG and SX-737 to dial readings of 1,400kHz and adjust TCS and TC6 to maximize audio frequency output level. Repeat steps 4 and 5 so that output is maximized when the dial indicates these frequencies. ®o o acceesa@a oo ° @ \e ° T, eee) [2 | ® eo8ea ssccc@ ve Ca es @® T% TH @ TUNER ASSEMBLY (AWE-043) Power Amplifier (DC neutral voltage and idle current) ooe Do this adjustment when any of the transistors in the power amplifier has been replaced. Terminal and VR numbers given first are for the left channel and those in brackets are for the right channel. Switch positions on the SX-73' FUNCTION . .. AUX POWER ... ON SPEAKER ...... A (A button pressed in) Connect 8Q dummy load to SPEAKER A terminals. (Keep AUX jacks free, and VOLUME control set at minimum.) Connect DC voltmeter to No. 3 (17) terminal of power amplifier assembly and ground it to chassis. Adjust VR1 (VR2) until voltmeter indicates OV_————_—__ Connect DC voltmeter between No. 2 (18) and No. 1 (19) terminals. Adjust VR3(VR4) so that voltmeter reads 20mV at 10 minutes after power is switched on. Satta LM | ° nooo coo 0 6©oo}o ® lo o oo o oogpe Bae | apr ® RIGHT LEFT CHANNEL CHANNEL VR, VR, VR; VR, ® oo 05 @ LoJ POWER AMPLIFIER ASSEMBLY (AWH-033) 17 ABGLEICHVERFAHREN Abgleichen Des FM-Teils 1, Regeleinstellungen am SX-737: FUNCTION (Programmauetlen-Wahischalter): FM (UKW) FM MUTING (FM-Stummabstimmung): OFF (niedergedriickt) POWER (Stramschalter): ON (Ein) REC SELECTOR (Aufnahme-Wahischalter}: SOURCE (Programmauelle) 2. AnschlieRen des Priifsatzes FIM-Priifsender (FM SG)... . . . . Ist dber eine 300-Ohm-Ersatzantenne an die mit FM ANTENNA (UKW-Antenne) bezeichneten Anschliisse anzuschlieBen. Wechselspannungsmesser ..... . ‘Sind parallelgeschaltet an die Anschlu@buchsen KlirrfaktormeRgerait Oszilloskop TAPE REC (Band/Aufnahme) anzuschlieSen. Der Aisgangspegel des FM-Priisenders ist, 100% moduliert bei 400 Hz bei einer Frequenzabweichung von +75 kHz, auf 100 dB einzustellen. 4. Der FM-Priifsender und der SX-737 sind beide auf eine Anzeige von 87,4 MHz {Linke Ende der Skalen) einzustellen, wobei T4 so zu justieren ist, daB die Nadel des SignalmeRgerdtes ganz nach rechts ausschlagt 5. T6 (unterer Kern) ist zu drehen und so einzustellen, da& die Nadel des Abstimm-Meters Zentriert ist. Der FM-Prifsender ist auf einen Ausgang von 8 — 10 dB einzustellen und T1, T2 und T3 sind zu drehen und auf einen maximalen Hérfrequenz-Ausgangspegel einzustellen. 7. Der FM-Priifsender und der SX-737 sind beide auf eine Anzeige von 106 MHz einzustellen und TC4 ist so zu justieren, da die Nadel des SignalmeRgerdtes ganz nach rechts ausschlagt, wenn der FM-Prifsender-Ausgang 100 dB betragt. 8, Der FM-Priifsendertist auf einen Ausgang von 8 —10 dB einzustellen und TC1,TC2 und TC3 sind zu drehen und auf einen maximalen Hérfrequenz-Ausgangspegel einzustellen. 9. Der FM-Priifsender und der SX-737 sind beide auf eine Anzeige von 90 MHz einzustellen und T5 ist so zu justieren, dagdie Nadel des Signalme@gerdtes ganz nach rechts ausschlagt, wenn der FM-Priifsender-Ausgang 100 dB betragt. ——________ 10. Der FM-Priifsender ist auf einen Ausgang von 8 — 10 dB einzustellen und 71, T2 und 73 sind zu drehen und auf einen maximalen Hérfrequenz-Ausgangspeget inzustellen. —| * — Obige Schritte 7 — 10 sind mehrals nacheinander zu wiederholen, bis der maximale Ausgang erzielt wird, wenn die angegebenen Frequenzen angezeigt werden. ® a. o oooooch@a oo ° @ TT) 7) ® © a eosve coecs@ee Secon ‘ait, 16, alegre © ® © @ MM TUNER-Schaltung (AWE-043) 18 11, Der FM-Prifsender und der SX-737 sind beide auf eine Anzeige von 90 MHz einzustellen und TS ist so zu justieren, da® der maximale Hérfrequenz- Ausgangspegel erzielt wird, wenn der Ausgang des FM-Priifsenders 8 — 10dB betragt. 12, Der SX-737 ist zu verstimmen, so da nur Geréusche empfangen werden. 13. T6 (unterer Kern) ist zu drehen und so einzustellen, daft die Nadel des Abstimm-Meters zentriert ist. 14. Der FM-Priifsender und der SX-737 sind beide auf eine Anzeige von 98 MHz ustellen. Die Feinabstimmung des SX-737 ist unter Beachtung des Abstimm-Meters vorzunehmen. 18. Der Ausgang des FM-Priifsenders ist auf 60 dB einzustellen und T6 (oberer Kern} ist zu drehen und so einzustellen, da die Verzerrung minimal wird. 16. Der Ausgang des FM-Priifsenders ist auf 100 dB einzustellen und VA1 ist so zu justieren, da das Signalmefgerat “5” anzeigt. VR, - |"|® ® ®o a coadsoo@a oo ° @ ® elelele 2) ) ccc! coooge FA0.. GS = © TUNER -Schaltung (AWE-043) Abgleichen Des FM-MPX-Teils * In den SX-737 ist ein PLL-Demodulator-Schaltkreis eingebaut. Diesser Abgleich sollte nur dann durchgefihrt werden, wenn der MPX-Integralschaltkreis ausgewechselt wurde. * Dieser Abgleich sollte nicht vor Beendigung des Abgleichs des FM-Té is durchgefuhrt werden, 1, Regeleinstellungen am SX-737: FUNCTION (Programmquellen-Wahischalter): FM (UKW) FM MUTING (FM-Stummabstimmung): OFF (niedergedriickt) POWER (Stromschalter) ON (Ein) REC SELECTOR (Aufnahme-Wahischalter) SOURCE (Programmquelle) 2. AnschlieBen des Priifsatzes: FIM-Priifsender (FM SG) « « Ist tiber eine 300-Ohm-Ersatzantenne an die mit FM ANTENNA (UKW-Antenne) bezeichneten Anschliisse anzuschlieBen. Multiplex-Priifsender (MPX SG) - - Ist an die AuRenmodulatoranschlisse des FIM-Priifsenders anzuschlieRen, Oszilloskop .. 2... 6. «++ ++ Der horizontale Eingang ist mit den mit PILOT OUT {Kontrollausgang) bezeichneten An- schliissen des Multiplex-Priifsenders und der vertikale Eingang mit dem AnschluB Nr. 18 der Tuner-Einheit zu verbinden. Klirrfaktorme@gerét ......... Ist an die AnschluBbuchsen TAPE REC (Band/Aufnahme) anzuschlieBen. 19 Der FM-Priifsender und der SX-737 sind beide auf eine Anzeige von 98 MHz einzustellen. Der Multiplex-Priifsender ist auf eine Abweichung von + 67,5 kHz bei 1 kHz fur die linken und rechten Kandle und der FM-Priifsender auf einen Ausgang von 60 dB inzustellen. ‘Auf dem Oszillographen sind Lissajous’sche Schwingungsfiguren zu erzeugen und VR2 ist so einzustellen, daft die Schwingungen festgehalten werden. Der Multiplex-Priifsender ist auf eine Abweichung von + 67,5 kHz bei 1 kHz fir die linken und rechten Kanéle und auf eine Abweichung von + 7,5kHz fiir des 19-kHz-Steuersignal einzustellen. Der FM-Priifsender ist auf einen Ausgang von 60 dB einzustellen. TS ist zu drehen und auf eine minimale Verzerrung der Hérfrequenzen des linken ‘oder rechten Kanales einzustellen. ® oo ocascea® oo ° ® : ° us e\e oN EEE Bi @® 22000 sooc0@ oo Cal... @ Te % @ TUNER-Schaltung {(AWE-043) Abgleichen Des AM-T: 1, Regeleinstellungen am SX-737: FUNCTION (Programmquellen-Wahischalter) AM (MW) POWER (Stromschalter] ON (Ein) REC SELECTOR (Aufnahme-Wahlschalter) SOURCE (Programmquelle) 2. AnschlieBen des Prifsatzes: AM-Priifsender (AMSG) ...... Ist reihengeschaltet mit der Ersatzantenne (1-kQ2-Widerstand) an di it AM ANTENNA (MW-Antenne) bezeichneten Anschliisse anzuschlieRen. Wechselspannungsmesser ...... Ist’ an AnschluSbuchsen TAPE REC (Band/Aufnahme) anzuschlieBen. 3. Der AM-Priifsender ist auf eine 30% Modulation bei 400 Hz und einen Ausgang von 30 dB einzustellen. 4. Der AM-Priifsender und der SX-737 sind beide auf eine Anzeige von 600 kHz einzustellen und T7 ist zu drehen und auf einen maximalen Hérfrequenz- Ausgangspegel einzustellen. (Gleichzeitig ist der Kern der Ferritstabantenne einzustellen),§ $$$ 5. Der AM-Prifsender und der SX-737 sind beide auf eine Anzeige von 1 400 kHz einzustellen und TCS und TC6 sind zu drehen und auf einen maximalen Hérfrequenz-Ausgangspegel einzustellen. * Die obigen Schritte 4 und 5 sind mehrmals nacheinander zu wiederholen, bis der maximale Ausgang erzielt wird, wenn diese Frequenzen angezeigt werden. 20 Abgleichen Der Endverstarkerstufe Dieser Abgleich sollte durchgefiihrt werden, wenn einer der Transistoren in der Endverstarkerstufe ausgewechselt wurde. Die zuerst angegebenen Anschliisse und VR-Nummern gelten fiir den linken Kanal und diejenigen in Klammer fiir den rechten Kanal. Regeleinstellungen am SX-737: FUNCTION (Programmauellen-Wahischalter) : AUX (Reserveeingang) POWER (Stromschalter) ON (Ein) SPEAKER (Lautsprecher! A (A-Taste niedergedriickt) An die mit SPEAKER A (Lautsprecher A) bezeichneten Anschliisse ist cin kiinstlicher Widerstand von 8 anzulegen. (An die Eingangsbuchsen (AUX) ist nichts anzuschlieBen).. Gleichspannungsmesser ist an den Anschlu® Nr. 3 (17) der Endverstarkerstufe anzuschliefen und an dem Gehéuse zu erden. VR1 (VR2) ist zu justieren, bis der Gleichspannungsmesser “OV” anzeigt. Der Gleichspannungsmesser ist zwischen den Anschliissen Nr. 2 (18) und Nr. 1 (19) anzuschliefen. VR3 (VR4) ist so zu justieren, da der Gleichspannungsmesser 10 Minuten nach dem Einschalten des Stromes 20 mV anzeigt= ° ° one 0 aa oofo ®[o 0 oo © oodoo Sate ger Rechten Linken Kanal Kanal vR, VR, VR, vR, oo0o oo oo @ “Math POWER AMPUFIER-Schaltung (AWH-033) i} 21 9. EXPLODED VIEW AND PARTS LIST NOTE Parts number is subject to change for the purpose of improvement with notice of a service bulletin. Service bulletin will be furnished whenever necessary and you are requested to amend parts number in this manual according to the instructions. NOTICE: Any parts asterisked (*) are subject to being not supplied. Parts List of Exploded View Descrip Part No. Lamp-held metal ANF-260-0 Pilot lamp socket AKK-002-0 Pilot lamp 8V, 0.3A {meter & dial scale) £22-032-0 Meter lamp box ANH-218-0 Meter (signal & tuning) AAW-032-0 Dial scale-held metal ANG-105-0 Dial scate AAG-079-A P.C. board cover ANK-072-0 Wire clip-C ‘AEC-007-0 Lamp board assembly AWX-072-0 Lamp box ANH-217-A Pilot lamp BV, 50mA (program indicator), AEL-022-0 Rubber bracket AEB-060-0 Electrolytic capacitor 6,800uF SOV ACH-014-0 Power transformer ATT-186-0 Power transformer ATT-192-0 Power transformer ATT-191-0 Sub-chassis ANF-259-0 Power amplifier assembly AWH-033-0 Pulley (small) AEC-153-0 Pulley shaft M49-025-€ Pulley (large) AEC-101-0 Phone jack (headphone) K72.026-0 Sub-panel ‘AND-075-A Shading plate AED-025-A Spacer AEC-116-0 Front panel assembly ANB-273-0 Knob (power, tape monitor, filter, loudness) ADD-040-8 Knob (speakers) ADD-082-B Knob (volume, balance, bass, treble, function, rec selector) AAB-068-0 Coupler (knob-to-switch) AAE-007-0 Knob (tuning) AAA-024-0 22 NOTICE Description : Any parts asterisked (*) are subject to being not supplied. Part No. Knob (mode, FM muting) Spacer Bush Sponge rubber Nut (insulator) Spacer (insulator) Lever switch (power! Lever switch (power) Lever switch (power) Speaker switch circuit assembly Control amplifier assembly Wire clip-A Wire clip-B Ground terminal strip (4) Tuning shaft assembly Push switch circuit assembly Microphone amplifier assembly Relay ‘Switch & volume circuit assembly Power supply circuit assembly Power supply circuit assembly P.C. board holder Screw M4x15, Washer Wooden cabinet AC power cord AC power cord AC cord grommet Connector (AC power) Rear panel Rear panel Rear paen! Speaker output terminal AC socket Fuse holder (AC power) Fuse holder (AC power) Wire supporter Ground terminal strip (2P) Wire clip Equalizer amplifier assembly Protection circuit assembly Foot assembly Chassis 5P connector assembly Phono jack-A (4 jacks} Phono jack-B (4 jacks) Antenna terminal board Model name plate Model name plate Model name plate AAD-054.0 AEC-152-B AEC-160-0 AEC-119-0 AEC-085-0 32-045-0 ASK-066-0 ASK-067-0 ASK-068-0 AWS-076-0 AWG-030-0 AEC-004-0 ‘AEC-005-0 K13-047-0 AXA-057-0 AWS-077-0 AWM-066-0 ‘ASR-007-0 AWX-071-0 AWR-057-0 AWR-058-0 AEB-019-0 ABA-O10-A B21-011-0 AMM-040-0 ADG.005-A ADG-004-0 AEC-079-0 AKP-008-0 ANC-118-0 ANC-119-0 ANC-120-0 AKA-001-0 AKP-004-0 AKR-007-0 AKR-001-0 M45-105-C K13-048-0 AEC-064-0 AWF-011-0 AWM-025-C AEC-061-A, ANA-069-, AWX-062-0 AKB-014.0 AKB-015-0 AKA-002-0 AAL-183-0 AAL-203-0 AAL-185-0 Continued on the Next Page 23 NOTICE: Any parts asterisked (*) are subject to being not supplied. Description Part No. Antenna clamper AEC-154-0 AC cord grommet AEC-079-0 Ferrite antenna holder assembly AXB-001-A Ferrite loopstick antenna ATB-026-0 Binding post for ground AKE-017-0 Tuner assembly AWE-043-0 Tuning pulley assembly AXA058-A Wire supporter M45-105-C PC. board-held metal-A, ANF-237-C PC. board-held metal-B ANF-238-C Bottom plate ANE-058-0 Dial pointer AAF-020-0 Serew ABA0120 Pilot lamp 8V,50mA (program indicator) AEL-023-0 Slide switch (de-emphasis) ‘ASH-008-0 ‘Small pulley AEC-017-0 Terminal strip (2P) AKC-023-0 24 10. SCHEMATIC DIAGRAMS, P.C. BOARD PATTERNS AND PARTS LIST 10.1 CIRCUIT CONNECTION DIAGRAM AND MISCELLANEOUS PARTS AWx-071 4g | eu TUNER Ass'y AWE-043 . ——- 4 - S-Line voldage model, LAMP Assy AWK-072 ANCA. 9.Sv_ METER LAMP soto | CN is = _ AY © eg E SWITCHED UNSWITCHED WROW MAK —-300W MAK 03280313 (OFF) + 195V QwA rif 11180 JW | 4 220V modev ‘SWITCHED — UNSWITCHEO OW MAX SOOW MAX When using this circuit diagram, note that a 220V only model (identified by part number: AWR-058) is the same as two other models (part numbers: AWR-057 each) except that the220V only model uses a 3.15A fuse(F1) and each of the two others uses a 3 A fuse (F1). PROTECTION ASs'y AWM - 025 EQUALIZER AMP Ass'y AWF-O11 Lo _Tanton] i WIC AMP Ass'y AWM -066 POWER AHP Assy AWH- 033 Crs$100P_Cagt500P > HH ® VOLUI say ke G~ Ow 005 280969 x2 mys osodmge TT — 6 Sunrct ". 9 28A720 x4 280967 32 la Pc = en g./25 a i \ 84 ~ [A | a. J lo ee, Leg | t- Co @) ° n> e A 4 a eu 8 : a s SP CONNECTOR ASs'y AWX~ 062 SWITCH eS VR, + TREBLE CONTROL Si FUNCTION 4 0280728 Vy: BASS CONTROL 0; 2801344 0,28C1944 Mic L 2 3. PHONO 4 5. AUK S__ REC SELECTOR . EM Brono ‘SOURCE DUPLICATE TAPE MONITOR 1 OFF —= ON _ RESISTORS TAPE MONITOR 2 FM. MUTING IN OHH, YW, 25% TOLERANCE UNLESS OFF ON ON —= OFF OTHERWISE NOTED. Kika MiMQ - a TAPE 1 THE 2 LOUDNESS SPEAKER A CAPACITORS =A CHNNEL OFF —= ON IN gF_ UNLESS OTHERWISE NOTED. —~ SPEAKER B BS pF Low FILTER 0 [iso av ron power PoTENTIO METER Sooe On = OFF Vay VOLUME our eur iw HIGH FILTER VR, BALANCE QFE —= ON PEAY wores: + SIGNAL VOLTAGE NECESSARY FOR OBTAINING 47W/8.Q OUTPUT POWER (IkHa). Mone + Neitheh switch (Su) mor capacivors .Ce&Cn) are provided for OC VOLTAGE AT NO INPUT SHNAL. iav780 STEREO —= MONO 220V unit. : DC CURRENT AT NO {NPUT SIGNAL. ~_ + No switich (Su) is provided For 120V unit,, but capacitors Cy & <1) are provided. + OC VOLTAGE AT 47w/82 OUTPUT POWER 27 2 8 > 3 3 3 2 a x a Miscellaneous Parts © CAPACITORS: IN uF UNLESS OTHERWISE NOTED p: pF ® RESISTORS: INQ, %W UNLESS OTHERWISE NOTED k: k@,M: M2 CAPACITORS Description Part No. Ceramic 0.01 CKDYF 103Z 50 Electrolytic 6,800 ACH-014-0 Electrolytic 6,800 ACH-014-0 Ceramic 0.01 ACG-003-0 Ceramic 0.01 ACG-001-0 Ceramic 0.01 ACG-001-0 Mylar 0.0082 COMA 822) 50 Mylar 0.0082 COMA 822) 50 RESISTOR Description Part No. Carbon film 2.2M RDYPS 225) Description Part No. Lever switch (power) ASK-066-0 Lever switch (power) ASK-067-0 Lever switch (power) ASK-068-0 Relay ASR-007-0 Slide switch (de-emphasis) ‘ASH-008-0 COILS AND TRANSFORMERS Description Part No. Power transformer ATT-186-0 Power transformer ATT-192-0 Power transformer ATT-191-0 Ferrite loopstick antenna ATB-026-0 Balun 122-025-A OTHERS Description Part No. Tuner assembly AWE-043-0 Equalizer amplifier assembly AWF-011-0 Microphone amplifier assembly AWM.-066-0 Control amplifier assembly AWG-030-0 Power amplifier assembly AWH-033-0 Protection circuit assembly AWM-025-C Switch & volume circuit assembly AWX-071-0 Speaker switch circuit assembly AWS-076-0 Push switch circuit assembly AWS-077-0 5P connector assembly AWX-062-0 Power supply circuit assembly ‘AWR-057-0 Power supply circuit assembly AWR-058-0 Lamp board assembly AWX-072-0 Front panel assembly ANB-273-0 Wooden cabinet AMM-040-0 ‘Continued on the Next Page 29 Description Part No. 30 Tuning pulley assembly Tuning shaft assembly Foot assembly Knob (tuning) Knob (power, filter, tape monitor, loudness) Knob (volume, balance, bass, treble, function, rec selector) Knob (mode, FM muting) Dial scale Dial pointer assembly Meter (signal & tuning) Knob (speakers) Antenna terminal board Speaker output terminal Phono jack-A (4 jacks) Phono jack-B (4 jacks) Pilot lamp 8V,50mA (program indicator) Binding post for ground Pilot lamp 8V, 0.3A (dial scale) Pilot lamp 8V, 50mA (program indicator! Fuse 3A (protection) Fuse 3.15A (protection) Fuse 1A (protection) Fuse 1A (protection) Fuse 1A (protection) Fuse 1A (protection) Fuse 1A (protection) Fuse 1A (protection) Fuse 3A (AC power) Fuse 1.54 (AC power) Fuse 1.6A (protection) Fuse 3A (protection) Fuse holder (AC power) Fuse holder (AC power) Connector (AC power) Fuse holder (protection) Phone jack (headphone) AC socket Pilot lamp socket AC power cord AC power cord Washer Screw M4x15 FM T-type antenna Operating instructions (English) Operating instructions (French/German) Packing case Inside packing Side pad AXA058-A AXA-057-0 AEC-061-A AAA024-0 AAD-040-8 AAB-068-0 ‘AAD-054-0 AAG-079-, AAF-020-0 AAW-032-0 AAD-082-8 AKA-002-0 AKA-001-0 AKB-014.0 AKB-015-0 AEL-023-.0 AKE-017-0 £22.032-0 AEL-022-0 AEK-101-0 AEK-042-0 AEK-106-0 £21-031-0 AEK-106-0 £21-031-0 AEK-106-0 £21.031-0 AEK-101-0 AEK-104-0 AEK-013-0 AEK-003-0 AKR-007-0 AKR-001-0 AKP-008-0 K91-008-0 K72-026-0 AKP-004-0 AKK-002-0 ADG-005-A ADG-004-0 B21-011-0 ABA010-A, ADH-002-0 ARB-105-0 ARD-069-0 AHD-223-0 AHC-015-0 AHA.068-0 10.2 TUNER ASSEMBLY (AWE-043-0) ou 1 ll ai bo 100 all os 10 Be s 8 8 2 = lll, aS S23 -- 2 “8 ® & oo a = ba a an OO << @ fe © C26 38000P. Ra OK BP & Rao 120K ete Raz 33K 2 43 Parts List of Control Amplifier Assembly (AWG-030-0) CAPACITORS Description Part No. Electrolytic CSZA 010M 25 Electrolytic CSZA 010M 25 Ceramic CCDSL 470K 50 Ceramic CCDSL 470K 50 Electrolytic CEA 101P 16 Electrolytic CEA 101P 16 Ceramic CCDSL 220K 50 Ceramic CCDSL 220K 50 Electrolytic - CEANL 4R7P 25 Electrolytic - CEANL 4R7P 25 Mylar COMA 333/ 50 Mylar COMA 333J 50 Myler COMA 333/ 50 Mylar COMA 333J 50 Mylar COMA 182) 50 Mylar COMA 182) 50 Electrolytic ' CEANL 4R7P 25 Electrolytic ' CEANL 4R7P 25 Electrolytic ; CEANL 4R7P 25 Electrolytic ' CEANL 4R7P 25 Electrolytic CEA 470P 10 Electrolytic CEA 470P 10 Electrolytic . CSSA 2R2M 25 Electrolytic CSSA 2R2M 25 Mylar COMA 333) 50 Mylar COMA 333) 50 Mylar COMA 123) 50 Mylar COMA 123) 50 Electrolytic CEA 101P 35 RESISTORS AND POTENTIOMETERS Description Part No. Variable resistor 100k-B(treble) ACV-136-0 Variable resistor 100k-B(bass) ACV-136-0 Carbon film 1M RD%PM 105) Carbon film = 1M RDY%PM 105d Carbon film 2.2k RO%PM 2225 Carbon film 2.2k RD%PM 2225 Carbon film 1.2M RD%PM 125J Carbon film 1.2M RDU“PM 125d Carbon film 330k RD%PM 334J Carbon film 330k RD%PM 334) Carbon film 10k RD%PM 103J Carbon film 10k RD%PM 103) Carbon film 1.5k RD%PM 152d Carbon film 1.5k RD%PM 152d Carbon film 10k RD%PM_103J Description Part No. Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film SEMICONDUCTORS 10k 10k 10k 100 100 18k 15k 5.6K 5.6 10k 10k 15k 15k 5.6k 5.6k 820k 820k 100k 100k 6.8k 6.8k 680 680 100k 100k 120k 120k 3.3K 3.3k 470k 470k 1k Description RDKPM RDYPM RD“PM RD%PM RD%PM RDYPM RD%PM RDYPM RD“PM RDYPM, RDYPM RDYPM, RD“PM RDYPM RD“PM RO“PM RD“PM RDYPM ROXPM RD%PM RDMPM RDZPM RDYPM RD%PM RDYPM RO“PM 1034 103) 103) 1014 1015 153) 153) 5625 562! 103) 1035 153d 153) 962) 562) 824) 824d 104 104 682) 682) esd esis 104) 104) 124) 124) 332d 332) 474) 474) 102) Transistor Transistor Transistor Transistor Transistor Transistor 2SA726-F or G 2SA726-F or G 28C1344-E or F (28C1312-E, F or G) 2SC1344-E or F (2SC1312-E, F or G) 2SC1344-E or F (28C1312-E, F or G) 28C1344-E or F (28C1312-E, F or G) Description Part No. Lever switch Lever switch (turn over) (turn over) ASK-062-0 ASK-062-0 033-0) 10.6 POWER AMPLIFIER ASSEMBLY (AWH. oTe Knsps0 "Pa TORSTEG oy Lzsasz §0 A081 HALs ‘0 (MH, 1081 [CMY 01 "HA 9ZLYSZ 0 2SA640 2SA763 LFS? © Sew oe oat —ie 2SA726 ore fe (toto : Si ne Se Ok. = 2 Gg. 7 = me MA HBL 28¢1451 Wy, = wee Sy I o@ E Pas C1 5 | ‘e 7 eli - at 21 Gay : pep. oats} Geert) 280357 .—_ eee eT 2SB527 :Diaoe Fi oP) a's j ims : fo. =: BSR | LE ey ls i. aL ah ao $ 2SD370 a ST ads 280388 ite um | ae ooo Lt ae eH penaa alta Ge 2SB541 ny rie oat 2SA745 at S at EB ae | . ge a S a : z i OP 3 > ie a eae ee Oe oe Re & i) Cowes lols of oe pe beQDi ti ds o4 ‘ gas 1 Ao , sett (a \ See Pe a1 hy a im emi)? ae z op ae math a3 g oe ° er Be| & = fee Bs 8 [ae p rapme| = J ai ‘ cae a) P| 2 Ge oe eur s Parts List of Power Amplifier Assembly (AWH-033-0) CAPACITORS ‘Symbol Description Part No. Electrolytic 0.33» 25V CSSA R33M 25 Electrolytic 0.33 25V CSSA R33M 25 Ceramic 86p = 50 CCDSL 560K 50 Ceramic 56p 50 CCDSL 560K 50 Ceramic 1207 50V CCDSL 121K 50 Ceramic 120p SOV CCDSL 121K 50 Electrolytic 2202 6V CEA 221P 6 Electrolytic 220 6V CEA 221P 6 Electrolytic 47 35V CEA 470P 35 Electrolytic 47 35V CEA 470P 35 Ceramic 15p 50V CCDSL 150K 50 Ceramic Sp 50V CCDSL 150K 50 Ceramic 180p — 50V CCDSL 181K 50 Ceramic 1802 50V CCDSL 181K 50 Ceramic 1802 50V CCDSL 181K 50 Ceramic 180p — 50V CCDSL 181K 50 Ceramic 0.04 = 50V CKDYF 4032 50 Ceramic 0.04 = 50V CKDYF 403Z 50 Electrolytic 22 10V CEA 220P 10 Electrolytic 22 10V CEA 220P 10 RESISTORS AND POTENTIOMETERS Description Part No. Variable resistor, semi €92-063-0 Variable resistor, semi €92-063-0 Variable resistor, semi €92-049-0 Variable resistor, semi-fixed 10k-B €92-049-0 Carbon film 220k RD%PS 224) Carbon film 220k RD%PS 224) Carbon film 22k RD%PS 222) Carbon film 2.2k RD%PS 222) Carbon film 82k RD%PS 823) Carbon film 82k RD%PS 823) Carbon film 51k 513d Carbon film 51k B13) Carbon film — 4.3k 432) Carbon film 4.3k 432) Carbon film 1.8k 182) Carbon film 1.8k RDYPS 182) Carbon film 1.2k RDMPS 122) Carbon film 1.2k RDUPS 122) Carbon film 24k RDUPS 243) Carbon film 24k RDUPS 243) Carbon film 18k RDYPS 153) Carbon film 15k RDY%PS 153) Carbon film 3.9k RD%PS 392) Carbon film 3.9k RDYPS 392) Description Part No. Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Metal film Metal film Metal film Metal film wound Wire wound Wire wound Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film Carbon film SEMICONDUCTORS 100 100 150 150 150 150 47 47 47 47 0s 0.5 0.5 0.5 10 10 10 10 RDY%PS 1014 RDYPS 1011 RD4PS 151) RDAPS 151) RDMPS 1514 RDYPS 151J RNIH 4R7K RNIH 4R7K RNIH 47K RNIH 47K RTSB ORSK RT5B ORSK RT5B ORSK RTS5B ORSK RDYPS 100J RD%PS 100J RD4PS 100J RD%PS 100J RDUPS 563) RDYPS 183) RDYPS 682d RD“PS 562J RDUPS 563 RDMPS 513J Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor 2SA726-G or F (2SA763F-5 or 6) {2SA640-K or L) 2SA726G or F (2SA763F-5 or 6) (2SA640-K or L) 2SA726-G or F (2SA763F-5 or 6) (2SA640-K or L) 2SA726-G or F (2SA763F-5 or 6) (2SA640-K or L) 28C1451-V, B or G 28C1451-V, Bor G 2SD357-C or D 28D357-C or D 28B527-C or D 288527-C or D Continued on the Next Page 49 Description OTHERS Transistor 28D370-0, R or Y (2S0388-0, R or S) {28C1403-R, O or Y) Transistor 2SD370-0, R or ¥ (2SD388-Q, R or S) {28C1403-R, O or Y) Transistor 2SB530-0, R or ¥ (288541-Q, Ror S) (2SA745-R, O or Y) Transistor 2SB530-0, R or Y (28B541-Q, R or S) (28A745-R, O or Y) Varistor STV4H Varistor STV4H Diode 182473 Description Part No. 50 AF choke coil AF choke coil Power transistor sock: Spacer (insulator) Heat sink (small) T63-009-0 T63-009-0 AKH-001-0 AEC-076-0 ANH-135-4 10.7 PROTECTION CIRCUIT ASSEMBLY (AWM-025-C) 2SC869 2SC857 28C1515 2801384 2SA733 = © Lt Foil Side (AWM-025-C) Parts List of Protection Circt Assembly (AWM-025-C) CAPACITORS Symbol Description Part No. c1 Electrolytic 0.22. 10V CSSA R22M 10 c2 Electrolytic 0.22,» 10V CSSA R22M 10 3 Electrolytic 330 GV CEA 331P 6 ca Electrolytic 330 «BV CEA 331P 6 cs Electrolytic 4.7 25v CEA 4R7P 25 ce Electrolytic 100 16V CEA 101P 16 RESISTORS Symbol Description Part No. RI Carbon film 27k RO%PS 272) R2 Carbon film 2.7k RD%PS 272) R3 Carbon film 2.7k RO%PS 272) Ra Carbon film — 2.7k RD“PS 272) RS Carbon film 18k ROMS 15) R6 Carbon film 15k RDUPS 153) R7 Carbon film 15k RDMPS 153) Re Carbon film 15k RDMPS 153) RO Carbon film 47k RDUPS 473) R10 Carbon film 47k RD“PS 473) Rit Carbon film — 2.2k RDKPS 222) R12 Carbon film — 2.2k RDUPS 222) R13 Carbon film 18k RD“PS 153/ R14 Carbon film 15k RDMPS 153) RIS Carbon film 82 RD%PS 820) RIG Carbon film 82 RO“PS 820) RI7 Carbon film §.6k RD%PS 562) R18 Carbon film 150k ROXPS 154) R19 R20 Carbon film 15k RD“PS 153) R21 Carbon film 15k RDMPS 153) R22 Carbon film 68k RD“PS 683) R23 Carbon film 12k RDYPS 1235 R24 Carbon film 15k RDMPS 153) R25 Carbon film 22k RD%PS 222) R26 Carbon film 68k RDYPS 683) R27 Carbon film 22 RD%PS 220) R28 Metal oxide = 2202S 1W RSiP 2214 R29 Carbon film 47k RD“PS 473) 52 SEMICONDUCTORS [ svmbot_| Description Part No. ai Transistor 2SC869-C, B or D (2scas7K-a) (2SC1515K) a2 Transistor 2SC869-C, Bor D (2SC857K-A) (2SC1515K) a3 Transistor 2SC945-0 or R a4 Transistor 2SC945-0 or R a5 Transistor 2SA733-Q or R a6 Transistor 2SC945-0 or R a7? Transistor 2SC1384-R or DI Diode 182472 pz Diode 182472 03 Diode 182472 D4 182472 DS Diode 182472 Dé Diode 182473 o7 Diode 182473, D8 182473 53 10.8 POWER SUPPLY CIRCUIT ASSEMBLY (AWR-057-0) fe _‘CaWTZ=I00) ),-D)$1801 my) og oy 9, 280313 Parts List of Power Supply Circuit Assembly (AWR-057-0) CAPACITORS Description Part No. Ceramic 0.01 ACG-004-0 0.01 ACG-004-0 mic 0.01 ACG-004-0 Ceramic 0.01 ACG-004-0 Ceramic 0.01 ACG-004-0 Ceramic 0.01 ACG-004-0 Electrolytic 1,000 CEB 102P Electrolytic 330 CEA 331P Electrolytic 330 CEA 331P Electrolytic 330 CEA 331P Foil Side (AWR-057-0) fs. 18078 £ ° ow 3 a: a : . ‘ 2 5 206 © a 19.0 33 25D3)3_ 25c945, a. ats olf 180 +|8 RE 16K, os Ra SK nee 98 oe STs 17@) ez: fas rs fe ish F ~ Awe 16) | tox Cell ow 5g 150 Ra.270) cag oe _—an oie SS 146 be) (ements = 80313 s| qe 2 be 6 Se, 130 = 2H: " Ps ‘® stg af 35 = Be BS Ba: wo 12'0 oe ao tO ees 01/180 et nl ‘Ds SR3AM-4 ‘Dr SRIAM-4 = oo —_4¢ > ot L > I be 3 o01/i80 1 001/396 E 4 e a - ih obs £eues! lvls < is Ge001/150 ce a0 s| Jz edb o I= Cae ‘\ 8 It § —— ho POwWe CeceCeEeEecesgd 110 9 8 7 6 5 4 3 2 1 ‘Symbol ci Electrolytic 220 16V CEA 221P 16 c12 Electrolytic 220 50V CEA 221P 50 crs Electrolytic 100 © SOV CEA 101P 50 ecia Ceramic 0.001 Sov CDKYF 1022 50 cis ‘Ceramic 0.001 50V CKDYF 102Z 50 ci6 Electrolytic 220 16V CEA 221P 16 c17 Electrolytic 22 25V CEA 220P 25 cis Electrolytic 100 16V CEA 101P 16 cia Electrolytic 100 35V CEA 101P 35 Continued on the Next Page 55 RESISTORS Symbol Description Part No. RI 270 *»W RDMPS 271d R2 1k 1W RS1P 102K R3 Wire sound 180 Sw RTSB 181K Ra Carbon film 1.5k RD%PS 152) RS Carbon film 1.5k RD%PS 152) RE Carbon film — 3.3k RDYPS 332) R7 Carbon film 22k RD%PS 223) RB Carbon 16k RD%PS 163 RO Carbon film 270 RD%PS 2715 R10 Carbon film 1k RD%PS 1025 RI Carbon film 180 %W RDMPS 181) SEMICONDUCTORS Symbol Description Part No. ai Transistor 2SD313-E or D a2 Transistor 2SC945-R or Q a3 Transistor 28D313-E or D a4 Transistor 2SC945-R or A D1 Diode SR3AM-4 D2 Diode SR3AM-4 03 Diode SR3AM-4 D4 Diode SR3AM-4 DS Diode §1B01-02 (1$1886) D6 Diode S1B01-02 (181886) 07 Diode $1B01-02 (181886) 8 Zener diode = WZ-130 D9 Zener diode WZ-140 OTHERS ‘Symbol Description Part No. Heat sink ‘ANH-117-0 Fuse holder (clip-in type) AKR-013-0 56 10.9 POWER SUPPLY CIRCUIT ASSEMBLY (AWR-058-0) FOR GN MODEL \-)S1BO1 KCN) 4oy 9 280313 28D313 |O 2SC945 Parts List of Power Supply Circuit Assembly (AWR-058-0) CAPACITORS Symbol Description Part No. ct Ceramic 0.01 = 150V ACG-004-0 c2 Ceramic 0.01 = 150V ACG-004-0 c3 Ceramic 0.01 = 150V ACG-004-0 ca Ceramic 0.01 150V ACG-004-0 cs Ceramic 0.01 = 150V ACG-004-0 ce Ceramic 0.01 150v ACG-004-0 c7 Electrolytic 1,000 50V CEB 102P 50 ce Electrolytic 330 © 50V CEA 331P 50 co Electrolytic 330 © 50V CEA 331P 50 c10 Electrolytic 330» SOV CEA 331P 50 57 Foil Side (AWR-058-0) Basancsua ° ——_ Ww» E 2 2 2 PF 8 z = —- De Ts ov st st ne ate sts) SRS ao + Re Ick D3 W2-140 Ba 15K Sirs § a ew 3 5S GMa: GPT, hs 18h - Eien owe ewe oo ‘ALK Ls 1000B¢ 2 ee ore Go Rete am a, [ai 4 et = = z@ age Ul 3 2 Sab Go e t aes 7 se Zoe g S ats ses 3 oe 2 5 & Oo gba att 2 Pg 6 ats = F 1 amo te ai ott 3 iy cam ade | — ct = 2 ‘Ds SR3AM. Di SR3AM s og 2 ome 3 C3001 001 4° ob aot) C2 0.9% we 4 4-4 ote ae ZS eS) = Da ‘SR3AM D2 SRSAM e| ot + og 0 ° ° ° ° ° ° ° ° ° ° ° = 56 © ®@ VN oD wewW Hw = ‘Symbol Description Part No. ci Electrolytic 220 16V CEA 221P 16 C12 Electrolytic 220 50V CEA 221P 50 C13 Electrolytic 100 50V CEA 101P 50 cia Ceramic 0.001 Sov CKDYF 1022 50 cis Ceramic 0.001 50V CKDYF 102Z 50 C16 Electrolytic 220 16V CEA 221P 16 C17 Electrolytic 22 25V CEA 220P 25 ce Electrolytic 100 16V CEA 101P 16 c19 Electrolytic 100 35V CEA 101P 35 Continued on the Next Page 58 RESISTORS Description art No. Carbon film 270 %W RDAPS 2714 Metal oxide 1k 1w RS1P 102K Wire wound 180 SW RTSB 181K Carbon film 1.5k RDMPS 152) Carbon film 3.3k RDMPS 332) 22k RD%PS 223) 16k RDKPS 163 270 RDMPS 2714 Carbon film 1k RD%PS 102) Ri Carbon film 180 — %W RDHPS 181) SEMICONDUCTORS Symbol Description Part No. ai Transistor 28D313-E or D a2 Transistor 2SC945-R or O a3 Transistor 2SD313-E or D 04 Transistor 2SC945-R or O D1 Diode SR3AM-4 2 Diode SR3AM-4 D3 Diode SR3AM-4 Da Diode SR3AM-4 Ds Diode $1B01-02 06 Diode 1801-02 o7 Diode $1B01-02 08 Zener w2z-130 D9 Zener WZ-140 OTHERS Symbol Description Part No. Heat sink ANH-117-0 Fuse holder (clip-in type) AKR-010-0 59 10.10 SWITCH & VOLUME CIRCUIT ASSEMBLY (AWX-071-0) 7OYLNOD 32NVIVE = uN YOMINGD 3HATOA = HK Foil Side (AWX-071-0) | 2500-8" yas wuzey S ° ese ° 8 3 ° ” ° on ° g o of o2 Bo q ° - == on @ aye ° od on ° 2 Bs Qs on oss es ey og oe ese oo D® wy ha Og om oR on os = Gi 2B) .om Eon oR 8 eg Os 5s By ees oF ° N22 ee, 3 ems o1@ ew 0)S mee 61 Parts List of Switch & Volume Circuit Assembly (AWX-071-0) CAPACITORS Symbol Description Part No. a Mylar 0.015 Sov COMA 153) 50 c2 Mylar 0.015 Sov CQMA 153) 50 c3 Ceramic 82p 50V CCDSL 820K 50 ca Ceramic 82p 50V CCDSL 820K 50 cs Electrolytic 220 6V CEA 221P 6 RESISTORS AND POTENTIOMETERS Symbol! Description Part No. VRI Variable resistor 250k-B1 (volume) ACV-134-0 VR2 Variable resistor 250k-HB (balance) ACV-135-0 R1 Carbon film 2.2k RD“PM 2225 R2 Carbon film — 2.2k RD%PM 222J R3 Carbon film 2.2k RD%PM 2225 Ra Carbon film — 2.2k RD%PM 2225 RS Carbon film — 3.3k RDYPM 3325 RG Carbon film 3.3k RD%PM 3325 R7 Carbon film 27k RD%PM 2735 RB Carbon film 27k RD%PM 2735 RO Carbon film 68k RD%PM 683) R10 Carbon film 68k RD%PM 6835 SWITCHES Symbol Part No. st s2 s3 sa 88 62 Rotary switch (function) Rotary switch (rec selector) Lever switch (tape monitor-1) Lever switch (tepe monitor-2) Lever switch (loudness) ASD-018-0 ASD-017-0 ASK-028-A, ASK-028-4, ASK-062-0 10.11 SPEAKER SWITCH CIRCUIT ASSEMBLY (AWS-076-0) Foil Side (AWS-076-0) RESISTORS ‘Symbol Description Part No. RI Metal oxide 150 2w RS2R 151K R2 Metal oxide 150 2W RS2R 151K SWITCH ‘Symbol Description Part No. si Push switch (speakers) ASG-072-0 63 10.12 PUSH SWITCH CIRCUIT ASSEMBLY (AWS-077-0) Foil Side (AWS-077-0) ‘Symbol Description Part No. | st Push switch (mode, FM muting) ASG-071-0 10.13 5P CONNECTOR ASSEMBLY (AWX-062-0) Foil Side (AWX-062-0) RESISTORS ‘Symbol Description Part No. RI Carbon film 390k RDMPS 394) R2 Cerbon film 390k RDMPS 394) R3 Carbon film 100k RD%PS 104) R4 Carbon film 100k RDMPS 104 Connector (DIN type 5P) AKP-007-0 64 11. PACKING METHOD AND PARTS NUMBERS OPERATING INSTRUCTIONS SIDE PAD ARB-105-0 (ENGLISH) AHA-068-0 : ARD-069-0 (FRENCH/GERMAN) c® SIDE PAD. AHA-068-0 INSIDE PACKING AHC-015-0 PACKING CASE AHD-223-0 65

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