COLOUR TV DEMONSTRATION KIT
FEATURES
1. The complete single PCB circuit of Remote Flat Screen Colour T.V. is Display on Front by
separate section.
2. All parts of PCB are shown directly through transparent Acrylic.
3. Fault creating Switches: 30 Fault creation facilities are provided by SPDT switches, by
rotating presets/ potentiometer.
4. Test Points: 30 Test points on this trainer allow the student to take measurements during
experimental exercises.
5. Different coloured sections for fault creating switches & testing points for easy
understanding / handling.
6. Explanation, Observation, Alignment and adjustment of internal and external controls is
possible at a glance due to single PCB.
7. Easy identification of different parts of Remote COLOUR T.V at a glance.
8. Easy measurement of Voltages and observation of waveforms at any point.
9. A manual for practical is provided with this trainer.
10. The whole circuit of Remote Colour TV is explained section wise in detail in the manual
SPECIFICATIONS
1. System : CCIR-B-PAL-G, 625 lines
2. Power supply : 230V + 10% AC, 50 Hz
3. Regulation range : 195V AC to 265V AC
4. Power consumption : 70 watts
5. Gain Limited sensitivity : 60 dB for Video. 30 dB for Audio
6. Sound output : 2.0 watts maximum.
7. Picture Tube size : 21" (Diagonal)
8. Tuner Channels : VHF 2-12, UHF 21-68, S-band & Hyper-band.
9. Tuner Channel Positions : 256 Channel positions.
10. Program Memory : 256 programs.
11. On Screen display for setting of all controls e.g. Volume, Brightness, Contrast, Colour,
Channel and band selection, Auto / Manual Tuning.
12. Remote Controller is provided with this trainer.
13. Audio, Video In sockets.
14. Controls : Volume, Brightness, Contrast, Colour, Channel
selection, Tuning.
15. Distortion : 10 to 15% in Live program due to expanded PCB
16. Standard Accessories 1. TV PCB fitted in cabinet
2. Picture tube fitted in cabinet.
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3. A Manual.
4. Remote Control
L I ST OF TEST POI N TS:
T P 1 – PO W ER SUPPL Y 11 0 V DR O P (Vo ltage fro m SMPS)
T P 2 – 22 V Vo ltage fr o m SMPS to T uning C ir cuit
T P 3 – 5V Supply to Mo the r B oar d
T P 4 – Scre e n O N /O FF
T P 5 – Vide o O N /O FF
T P 6 – VHF Band
T P 7 – UHF Band
T P 8 – VL Band
T P 9 – REMO T E O N /O FF
T P 1 0 – IF we ak signal
T P 1 1 – R ed Co lo ur C atho de
T P 1 2 – G re e n Co lo ur C atho de
T P 1 3 – B lue C o lo ur C atho de
T P 1 4 – AG C (Auto mat ic G ain Co ntr o l) T une r
T P 1 5 – Me mor y ON /O FF
T P 1 6 – T uner O FF
T P 1 7 – B + ON /O FF
T P 1 8 – VHF High Band
T P 1 9 – VL High Band
T P 2 0 – C hro ma IC + 12 V Supply
T P 2 1 – Ve r tical R o lling
T P 2 2 – So und to the spe aker (So und Pro ble m)
T P 2 3 – Ve r tical Do w n
T P 2 4 – Ve r tical W idth Incre ase / De cr e ase
T P 2 5 – H- L ine ce nte r e d
T P 2 6 – Ho r iz o ntal PF
T P 2 7 – Ho r iz o ntal w idth incr e ase
T P 2 8 – De gauss ON /O FF
T P 2 9 – Vo lume ON /O FF
T P 3 0 – Ve r tical ON /O FF
Fa ult Cr ea t ing Swit c hes L ist
S/W T P 1 – PO W ER SUPPL Y 11 0 V DR O P (Vo ltage fro m SMPS) pr o ble m
S/W T P 2 – 22 V Vo ltage fr o m SMPS to T uning C ir cuit pr o ble m
S/W T P 3 – 5V Supply to Mo the r B oar d pro ble m
S/W T P 4 – Scre e n pr o ble m: N o pictur e , plane r aste r
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S/W T P 5 – Vide o pr o ble m
S/W T P 6 – VHF Band pr o ble m
S/W T P 7 – UHF Band pr o ble m
S/W T P 8 – VL Band pr o ble m
S/W T P 9 – REMO T E pr o ble m
S/W T P 1 0 – IF signal pro ble m
S/W T P 1 1 – R ed Co lo ur pr o ble m
S/W T P 1 2 – G re e n Co lo ur pr o ble m
S/W T P 1 3 – B lue C o lo ur pro ble m
S/W T P 1 4 – AG C (Auto mat ic G ain Co ntr o l) T une r pro ble m
S/W T P 1 5 – Me mor y pro ble m
S/W T P 1 6 – T uner pro ble m
S/W T P 1 7 – B + pro ble m
S/W T P 1 8 – VHF High Band pr o ble m
S/W T P 1 9 – VL High Band pr o ble m
S/W T P 2 0 – C hro ma IC pr o ble m
S/W T P 2 1 – Ve r tical R o lling pr o ble m
S/W T P 2 2 – So und to the spe aker (So und Pro ble m)
S/W T P 2 3 – Ve r tical Do w n pr o ble m
S/W T P 2 4 – Ve r tical W idth pro ble m: W idth mo re than no r mal
S/W T P 2 5 – H- L ine ce nte r e d pr o ble m
S/W T P 2 6 – Ho r iz o ntal PF pr o ble m
S/W T P 2 7 – Ho r iz o ntal w idth pr o ble m: W idth mo re than nor mal
S/W T P 2 8 – De gauss pro ble m
S/W T P 2 9 – Vo lume pro ble m
S/W T P 3 0 – Ve r tical pro ble m: O ne ve r tical br ight line
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