Panasonic TC-L32B6
Panasonic TC-L32B6
MTNC130213CE
B01 Canada: B61
LCD TV
4. Specifications.......................................................................................................13
6. Boards Layout......................................................................................................17
8. Troubleshooting guide..........................................................................................22
2
Attention: This service manual is only for service personnel to take reference with. Before servicing
please read the following points carefully.
Safety precautions
1. Instructions
Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production
process!):
a) Do not touch here and there by hand at will;
b) Be sure to use anti static electric iron;
c) It’s a must for the welder to wear anti static gloves.
Please refer to the detailed list before replacing components that have special safety requirements.
Do not change the specs and type at will.
3
2.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead to
breakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong case
before the transportation or handling.
2.12 For the storage make sure to put it in a place where the environment can be controlled so as to
prevent the temperature and humidity from exceeding the limits as specified in the manual. For
prolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in one
place. The ambient conditions are tabulated as follows:
2.13 Display of a fixed picture for a long time may result in appearance of picture residue on the
screen, as commonly called “ghost shadow”. The extent of the residual picture varies with the maker
of LED screen. This phenomenon doesn’t represent failure. This “ghost shadow” may remain
in the picture for a period of time (several minutes). But when operating it please avoid displaying still
picture in high brightness for a long time.
4
2. Alignment instructions
(1) Test equipment
VG-859 (YPbPr, VGA, HDMI signal generator)
FLUKE 54200(TV signal generator)
CA310 (white balancer)
(2) Power test
Connect main board, power board and IR board according the wiring diagram, connect
the power and press power key (Remote controller or Keypad) button to turn on the TV.
a) Test the pin voltage of P802/power board , the data is shown in table1:
For 32”
Pin12 Pin13 Pin 14 Pin15 Pin16
On:2.5V~5.25V Normal: 2.0~5V On:2.5V~5.25V
Duty 5%~100% NC
Off: 0~0.5V Abnormal :0~0.5V Off: 0~0.5V
5
(3) Alignment flow-chart
The alignment flow-chart is shown as fig-1
Preset ex-factory
6
(4) Adjustment instruction
At any input source then press the “←”, “EXIT” and “OK” (using RC within 1 sec) to enter factory mode
During Factory menu, if “EXIT” key is pushed, system will exit factory mode.
Color Cool
100IRE 0.2677
x
50IRE 0.2684
100IRE 0.2655
y
50IRE 0.2671
Adjust
±0.005
Tolerance
(5) When match the spec, pressing right key in "Save" position then exit the adjustment page.
4-2.4. Exit Factory Mode:
After finish Gamma adjust press [EXIT] to exit factory mode.
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(5) Items of Factory menu
When in any source, press the “Left -> Exit -> Enter” key of remote control can enter into factory mode.
During Factory menu, only “EXIT” key is pushed, system will exit factory mode.
Press up and down key can move high light item from Model Change -> Color Temp. Adjust -> Auto Gamma
Adjust -> Timer Clear -> Preset Channel -> Full Power -> ADC Calibration -> Shipping reset -> Bypass Gamma ->
UART Enable -> I2C -> Boot Loader Upgrade -> V-Com Adjust -> SG Pattern.
Push “Enter” key can enter high light item function. (Press left and right can adjust value)
Display Model version, Release Date, firmware version and released date on the bottom.
1)Model ID
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for FW engineer.
2)Color Temp. Adjust
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for PQ engineer.
3)Auto Gamma Adjust
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for PQ engineer.
4)Timer Clear
Reset the timer which records hours of LED panel burn in
This item will have a check dialog “yes or no” to do or not.
- Time in factory mode: Time function shall be displayed automatically. Saving the total time of system
power on (LED turn on), and count the time automatically. The timer is continuous and saved (per 10
minutes) forever, unless it will be reset by doing “Timer Clear”.
5)Preset channel
Load preset channel for production line.
6)Full Power
This is for power consumption testing.
To measure the maximum power consumption of TV set, we adjust the value of following items to
maximum.
- Video: Contrast maximum value, Brightness maximum value, Backlight maximum value.
- Audio: Volume maximum value, Bass default value, Treble default value.
Press enter key to turn on Full Power and OSD stay display until press enter key to recover from Full
Power.
8
7)ADC Calibration
ADC Calibration function is reserved for calibration by hand (PQ engineer only).
8)Shipping reset
Reset all settings of OSD menu to default value.
Reset settings: Channel table, Model table (H/V Position, Clock, Phase), Source dependent setting
(Contrast, Brightness etc.), Common setting (Volume, Language etc.), Parental Control (Rating,
Password etc), Closed Caption.
9)Bypass Gamma
For factory test value of gamma.
10)UART Enable
Enable to communicate with Auto-Alignment system.
11)I2C
Enable to communicate with Eeprom burn-in tool.
12)Boot Loader Upgrade
For firmware downgrade used.
13)V-Com Adjust
It's reserved for BMS function.
14)SG Pattern
Aging is for factory burn in and PTN ID provides each pattern for tester using.
6-2 AV terminals
Input Video signal, check if the picture and sound are normal.
MODE
LINE(kHz) LINE (pixel) LINE (pixel) LINE (pixel) LINE (pixel)
LINE
FRAME FIELD (MHz) FRAME FRAME FRAME
FIELD
(Hz) (lines) (lines) (lines) (lines)
9
6-4 HDMI terminal
Input HDMI signal (VG859 signal generator), separately input the signals listed in table6 and check the display and
sound (32 KHz, 44.1 KHz, 48 KHz) at any situation (power on, channel switch and format convert, etc.)
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6-5 other functions check
a) Check the sleep timer, picture/sound mode, OSD, stereo and analog TV Teletext, etc.
(1) Plug the USB with the firmware file named upgrade_2013_NA.pkg
(2) If system detect upgrade_2013_NA.pkg, USB upgrade message would appear automatically.
(3) Press Up key to select Yes, and then press OK key to start the upgrading.
(5) When the progress completed, please follow the instruction to remove USB and restart Power off
then on.
11
Working principle analysis of the unit
1. NTSC signals flow:
Antenna signal will be send to tuner TDST-H021F, t h e n T u n e r w i l l b e demodulating and
output standard video signal TV-CVBS, and sound SIF signal.
TV-CVBS will send to the master control IC MT5385 to video decode, de-interlace and scaler, then
output LVDS level drive for panel display.
The sound IF (SIF) will be fed into MT5385, after demodulating, pre-amplifying, bass adjusting and
volume control, the sound signal w i l l b e t r a n s f o r m i n t o d i g i t a l I 2 S s i g n a l and sent to
digital amplifier TAS5707.
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4. Specifications
13
SPD32T 32” Block Diagram
5-1 Block Diagram
EE:
A70 60Hz Models by WXGA :2x10
MTK MT5835 Platform Full-HD :2x20
Panel out
R_out
Audio
AMP
TAS5707
L_out
DDR3 1G-1600
H5TQ1G63DFR-PBC
MTK
MT5385 Keypad
EEPROM 64KB
IF +/- 24C32
CVBS/Y Pb Pr Crystal
& Audio R/L 27MHz IR
Enable
ARC
Buffer IR / LED-R
Board
Y
Pb
S/PDIF
Pr USB
Tuner
LG L
TDST-
H021F
R
14
Power board:FSP
15
Power board:DARFON
16
6. Boards Layout
11
17
SPD32T 32-inch Wiring Diagram
7-1 BLOCK
18
7-2 Wiring Connection
AUO panel
Main board to Panel Main board to Speaker
SPD32T SPD32T
DC02L00700I DC02A00130I
280 mm L:280 & R:480 mm
Panel side Main board CN1 Main board CN4 Speaker
FI-X30SSL-HF LVDS cable JWT A2006WR0-2X10P JWT A2001WR2-4P Color Right
1 VCC Red 1 LVDS_PWR 1 SPK_OUTL+ Red P3 Speaker +
2 VCC Red 2 LVDS_PWR 2 SPK_OUTL- Black P2 Speaker -
3 VCC NC Left
4 VCC NC 3 SPK_OUTR- Green P5 Speaker -
5 GND NC 4 SPK_OUTR+ White P4 Speaker +
6 GND NC
7 GND NC
8 GND NC Main board to IR board/ Key
9 SELLVDS Yellow 8 LVVDS_SEL SPD32T
10 NC NC DC02V04140I
11 GND NC IR:450 mm & Key:750mm
12 RX0- Yellow 20 LVDS_D0O_N IR board CN1 Main board CN3
13 RX0+ White 19 LVDS_D0O_P JWT A2001WR2-11P Color JWT A2001WR2-5P
14 GND NC 1 VCC3V3_STB Red 1 VCC5_0_STB
15 RX1- Red 18 LVDS_D1O_N 2 IRR White 2 IRR
16 RX1+ White 17 LVDS_D1O_P 3 GND Black 3 GND
19
17 GND Black 5 GND 4 LED_G Orange 4 LEDG
18 RX2- Orange 16 LVDS_D2O_N NC 5 LEDR
19 RX2+ White 15 LVDS_D2O_P NC 6 Light_S_C
20 GND Black 6 GND NC 7 Light_S_D
21 RXCLK- Brown 14 LVDS_CO_N 1 GND Black 8 GND
22 RXCLK+ White 13 LVDS_CO_P 2 Power Red 9 Power Key
23 GND Black 7 GND 3 SAR0 Orange 10 SAR0
24 RX3- Black 12 LVDS_D03_N 4 SAR1 Yellow 11 SAR1
25 RX3+ White 11 LVDS_D03_P
26 GND NC
27 NC NC
28 NC NC
29 NC NC
30 GND NC
20
Main board to Power board:
21
8. Trouble shooting
1. Fault clearance
Before calling your dealer or service center for assistance, check the matters below once again.
(1) Make sure you have connected LED TV to your equipment as described in the section
“ CONNECTING LED TV”.
(2) Check cable connection. Verify that all external equipment and power cord are properly
connected.
(3) Verify that all power is switched on.
(4) If LED TV still does not produce an image, re-start the external equipment.
(5) If the image still does not appear, unplug LED TV from the external equipment and check the
external equipment. The problem may be with your graphics controller rather than with LED TV.
(When you reconnect LED TV, remember to turn the external equipment and TV off before you
power up LED TV. Power the equipment back on in order of LED TV and external equipment.)
(6) If the problem still exists, check the following chart.
23
2-2 Has audio but no video out
24
2-4 Has video but no audio out step 2
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9. Exploded View
12
03
17
17
16
04
21 29 23 26 20
02
15 19
18
27
13
06
01 10
07
05
17 08 28
09
14
21 25
29 10
04 28 29
24 18
27 20
11
28
22 30
29
30
36
37 31
40
POP label
41
34
38
33
39 Type A
44
35
45 32
Type B
42
43
10. Replacement Parts List
Note: All parts aresupplied by PAVCA.
Safety Ref.No. Part No. Part Name & Description Pcs Remarks
1 TZZ00000766A PCBA IR/B 1
2 TZZ00000767A FIRMWARE M/B 1 TC-L32B6
2 TZZ00000768A FIRMWARE M/B 1 TC-L32B6P
3 TZZ00000772A LCD MODU 1
4 TZZ00000780A SPK SET(90d)(PIN90d) 2
5 TZZ00000781A H-CON SET 1
6 TZZ00000782A H-CON SET 1
7 TZZ00000783A H-CON SET 1
8 TZZ00000784A H-CON SET 1
9 TZZ00000786A H-CON SET 1
10 TZZ00000079A MYLAR AL TAPE 2
11 TZZ00000844A PWR MODU(SPD32T) 28 1
12 TZZ00000774A CABINET ASSY 1
13 TZZ00000775A BACK COVER ASSY 1
14 TZZ00000787A METAL VERTICAL-L 1
15 TZZ00000788A METAL VERTICAL-R 1
16 TZZ00000789A METAL CH FRAME-A 1
17 TZZ00000790A LCD MTG SIDE(32B6) 6
18 TZZ00000794A GROND SPRING (32B6) 2
19 TZZ00000804A SIDE AV BRACKET(32B6) 1
20 TZZ00000805A CH MOUNT BOSS(32B6) 2
21 TZZ00000806A SPEAKER BRACKET(32B6) 4
22 TZZ00000809A KEY BUTTON BRACKET(32B6) 1
23 TZZ00000078A LOCKING CABLE TIE 1
24 TZZ00000832A SUPPORT(32B6) 3
25 TZZ00000834A SCREW 3
26 TZZ00000835A SCREW 3
27 TZZ00000083A SCREW+LOCK WASHER(8) 4
28 TZZ00000838A SCREW(NL) 7
29 TZZ00000843A TAPPING SCREW 10
30 TZZ00000656A TAPPING SCREW 6
31 TZZ00000796A RATING NP-TC-L32B6 1 Model Name Plate TC-L32B6
31 TZZ00000799A RATING NP-TC-L32B6P 1 Model Name Plate TC-L32B6P
32 TZZ00000821A CARTON-TC-L32B6 1 TC-L32B6
32 TZZ00000824A CARTON-TC-L32B6P 1 TC-L32B6P
33 TZZ00000828A ENERGY GUIDE-TC-L32B6 1
34 TZZ00000831A PE BAG FOR TV 1
35 TZZ00000846A MANUAL KITS-32B6 1 TC-L32B6
35 TZZ00000848A MANUAL KITS-32B6P 1 TC-L32B6P
36 TZZ00000819A PWR CORD(S) 1 TC-L32B6
36 TZZ00000820A PWR CORD(S) 1 TC-L32B6P
37 N2QAYB000820 REMO CTRL AA 1
38 TZZ00000776A PEDESTAL ASSY 1
39 TZZ00000803A STAND MOLD 1
40 TZZ00000811A EPS FOAM(T-L) 1
41 TZZ00000812A EPS FOAM(T-R) 1
42 TZZ00000813A EPS FOAM(B-L) 1
43 TZZ00000814A EPS FOAM(B-R) 1
44 TZZ00000842A TAPPING SCREW 4 Type A screw
45 TZZ00000840A SCREW+2WASHER(10) 4 Type B screw
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11 Disassembly and Assembly Instructions
11.1. Base cover + stand mold
1. Lay down the unit so that the rear cover faces upward.
11.4. M-Board
1. Remove the 2 screws.
11.6. IR-Board
1. Disconnect the connectors (I1).
11.8. Panel
1. Remove the Panel.