Panasonic TH-L32X10H User manual

© Panasonic Corporation 2009. Unauthorized
copying and distribution is a violation of law
ORDER NO. MTV0901678CE
LCD TV
Model No. TH-L32X10H
Chassis: LH88
Destination: HONG KONG
Specifications
Power Source AC 220V, 50/60 Hz
Power Consumption
Average use 117 W
Standby condition 0.4 W
Display panel
Aspect Ratio 16:9
Visible screen size 80 cm (diagonal)
698 mm (W) ×393 mm (H)
Number of pixels 1,049,088 (1,366 (W) ×768 (H))
Sound
Speaker 160 mm ×42 mm ×2 pcs, 8 Ω
Audio Output 20 W (10 W + 10 W), 10% THD
Headphones M3 (3.5 mm) stereo mini Jack ×1
PC Signals VGA, SVGA, XGA
SXGA ...... (compressed)
Horizontal scanning frequency 31 - 69 kHz
Vertical scanning frequency 59 - 86 Hz
Receiving Systems / Band name SYSTEMS FUNCTIONS
1PAL B, G, H
Reception of broadcast transmission and
playback from video cassette tape recorders.
2PAL I
3PAL D, K
4SECAM B, G
5SECAM D, K
6SECAM K1
7NTSC M (NTSC 3.58 / 4.5MHZ)
GB20600-2006 Mode-C=3780 8MHz UHF (Hong Kong) free-to-air TV Broadcast reception

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8NTSC 4.43 / 5.5 MHz
Playback from special VCR’s or DVD.
9NTSC 4.43 / 6.0 MHz
10 NTSC 4.43 / 6.5 MHz
11 NTSC 3.58 / 5.5 MHz
12 NTSC 3.58 / 6.0 MHz
13 NTSC 3.58 / 6.5 MHz
14 SECAM I
15 PAL 60 Hz / 5.5 MHz Playback from Special Disc Players and
Special VCR’s or DVD.
16 PAL 60 Hz / 6.0 MHz
17 PAL 60 Hz / 6.5 MHz
Receiving Channels (Regular TV)
VHF BAND 2 - 12 (PAL / SECAM B, K1)
0 - 12 (PAL B AUST.)
1 - 9 (PAL B N.Z.)
1 - 12 (PAL / SECAM D)
1 - 12 (NTSC M JAPAN)
2 - 13 (NTSC M USA)
UHF BAND 21 - 69 (PAL G, H, I / SECAM G, K, K1)
28 - 69 (PAL B AUST.)
13 - 57 (PAL D, K)
13 - 62 (NTSC M JAPAN)
14 - 69 (NTSC M U.S.A.)
CATV S1 - S20 (OSCAR)
1 - 125 (USA CATV)
C13 - C49 (JAPAN)
S21 - S41 (HYPER)
Z1 - Z37 (CHINA)
5A, 9A (AUST.)
Aerial - Rear VHF / UHF
Operating Conditions Temperature : 0°C - 40°C
Humidity : 20 % - 80 % RH (non-condensing)
Connection Terminals
AV1 Input AUDIO L-R RCA PIN Type ×2 0.5 V [rms]
VIDEO RCA PIN Type ×1 1.0 V [p-p] (75 Ω)
COMPONENT Y 1.0 V [p-p] (including synchronization)
PB/CB, PR/CR± 0.35 V [p-p]
AV2 Input AUDIO L-R RCA PIN Type ×2 0.5 V [rms]
VIDEO RCA PIN Type ×1 1.0 V [p-p] (75 Ω)
COMPONENT Y 1.0 V [p-p] (including synchronization)
PB/CB, PR/CR± 0.35 V [p-p]
AV3 Input AUDIO L-R RCA PIN Type ×2 0.5 V [rms]
VIDEO RCA PIN Type ×1 1.0 V [p-p] (75 Ω)
S-VIDEO Mini DIN 4-pin Y: 1.0 V [p-p] (75 Ω) C: 0.286 V [p-p] (75 Ω)
Monitor
Output AUDIO L-R RCA PIN Type ×2 0.5 V [rms] (High impedance)
VIDEO RCA PIN Type ×1 1.0 V [p-p] (75 Ω)
Others HDMI 1-3 Input TYPE A Connectors • This TV supports “HDAVI Control 4” function.
PC Input HIGH-DENSITY D-SUB 15 PIN R, G, B / 0.7 V [p-p] (75 Ω)
HD, VD / TTL LEVEL 2.0-5.0 V [p-p] (high impedance)
DIGITAL AUDIO OUT PCM / Dolby Digital, Fiber optic
Card Slot SD Card slot ×1
Dimension (W x H x D) 798 mm ×551 mm ×217 mm (With Pedestal)
798 mm ×511 mm ×93 mm (TV only)
Mass 13.5 kg Net (With Pedestal)
11.5 kg Net (TV only)
Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.

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TABLE OF CONTENTS PAGE PAGE
1 Safety Precautions----------------------------------------------- 5
1.1. General Guidelines---------------------------------------- 5
1.2. Touch-Current Check------------------------------------- 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices------------------ 6
3 About Lead Free Solder (PbF) ------------------------------- 7
4 Self Check Function--------------------------------------------- 8
4.1. Self Check--------------------------------------------------- 8
4.2. Power LED Blinking Timing----------------------------- 8
5 Chassis Board----------------------------------------------------- 9
5.1. Chassis Installation --------------------------------------- 9
6 Location of Controls and Components ------------------10
6.1. Wire Dressing ---------------------------------------------10
7 Disassembly and Assembly Instructions ---------------12
7.1. 3 Pin AC Cord---------------------------------------------12
7.2. 2 Pin AC Cord---------------------------------------------12
7.3. AC Cord Installation--------------------------------------13
7.4. VESA Metal Assembly ----------------------------------14
7.5. VESA Metal Installation---------------------------------15
7.6. Pedestal Assembly---------------------------------------16
7.7. LED Panel Installation And Fitting--------------------18
7.8. Control Panel Assembly --------------------------------19
7.9. Side AV Bracket And Control Button Fixing--------20
7.10. Speaker Installation--------------------------------------21
7.11. LCD Mouting Fixing--------------------------------------22
7.12. LCD Panel Assembly Installation---------------------23
7.13. LVDS Wire (X Series) -----------------------------------24
7.14. Back Cover-------------------------------------------------25
7.15. XH PCB Assembly ---------------------------------------26
7.16. XH PCB Assembly 2-------------------------------------27
7.17. Indication Sheet Sticking Position--------------------28
8 Service Mode Adjustment ------------------------------------29
8.1. Self Check Mode -----------------------------------------29
8.2. Hotel Mode Adjustment---------------------------------29
8.3. Hotel Mode-------------------------------------------------29
9 Measurements and Adjustments---------------------------30
9.1. Voltage Chart of A Board-------------------------------30
9.2. Voltage Chart of P Board-------------------------------30
10 Printed Circuit Board-------------------------------------------31
10.1. A-Board -----------------------------------------------------31
10.2. A-Board -----------------------------------------------------33
10.3. P-Board -----------------------------------------------------35
10.4. P-Board -----------------------------------------------------37
11 Schematic Diagram---------------------------------------------39
11.1. Schematic Diagram Notes -----------------------------39
11.2. A Board -----------------------------------------------------40
11.2.1. A Board - Sheet : 001 (1 / 8)----------------------40
11.2.2. A Board - Sheet : 001 (2 / 8)----------------------41
11.2.3. A Board - Sheet : 001 (3 / 8)----------------------42
11.2.4. A Board - Sheet : 001 (4 / 8)----------------------43
11.2.5. A Board - Sheet : 001 (5 / 8)----------------------44
11.2.6. A Board - Sheet : 001 (6 / 8) --------------------- 45
11.2.7. A Board - Sheet : 001 (7 / 8) --------------------- 46
11.2.8. A Board - Sheet : 001 (8 / 8) --------------------- 47
11.2.9. A Board - Sheet : 002 (1 / 4) --------------------- 48
11.2.10. A Board - Sheet : 002 (2 / 4) --------------------- 49
11.2.11. A Board - Sheet : 002 (3 / 4) --------------------- 50
11.2.12. A Board - Sheet : 002 (4 / 4) --------------------- 51
11.2.13. A Board - Sheet : 003 (1 / 6) --------------------- 52
11.2.14. A Board - Sheet : 003 (2 / 6) --------------------- 53
11.2.15. A Board - Sheet : 003 (3 / 6) --------------------- 54
11.2.16. A Board - Sheet : 003 (4 / 6) --------------------- 55
11.2.17. A Board - Sheet : 003 (5 / 6) --------------------- 56
11.2.18. A Board - Sheet : 003 (6 / 6) --------------------- 57
11.2.19. A Board - Sheet : 004 (1 / 9) --------------------- 58
11.2.20. A Board - Sheet : 004 (2 / 9) --------------------- 59
11.2.21. A Board - Sheet : 004 (3 / 9) --------------------- 60
11.2.22. A Board - Sheet : 004 (4 / 9) --------------------- 61
11.2.23. A Board - Sheet : 004 (5 / 9) --------------------- 62
11.2.24. A Board - Sheet : 004 (6 / 9) --------------------- 63
11.2.25. A Board - Sheet : 004 (7 / 9) --------------------- 64
11.2.26. A Board - Sheet : 004 (8 / 9) --------------------- 65
11.2.27. A Board - Sheet : 004 (9 / 9) --------------------- 66
11.2.28. A Board - Sheet : 005 (1 / 5) --------------------- 67
11.2.29. A Board - Sheet : 005 (2 / 5) --------------------- 68
11.2.30. A Board - Sheet : 005 (3 / 5) --------------------- 69
11.2.31. A Board - Sheet : 005 (4 / 5) --------------------- 70
11.2.32. A Board - Sheet : 005 (5 / 5) --------------------- 71
11.2.33. A Board - Sheet : 006 (1 / 2) --------------------- 72
11.2.34. A Board - Sheet : 006 (2 / 2) --------------------- 73
11.2.35. A Board - Sheet : 007 (1 / 5) --------------------- 74
11.2.36. A Board - Sheet : 007 (2 / 5) --------------------- 75
11.2.37. A Board - Sheet : 007 (3 / 5) --------------------- 76
11.2.38. A Board - Sheet : 007 (4 / 5) --------------------- 77
11.2.39. A Board - Sheet : 007 (5 / 5) --------------------- 78
11.2.40. A Board - Sheet : 008 (1 / 4) --------------------- 79
11.2.41. A Board - Sheet : 008 (2 / 4) --------------------- 80
11.2.42. A Board - Sheet : 008 (3 / 4) --------------------- 81
11.2.43. A Board - Sheet : 008 (4 / 4) --------------------- 82
11.2.44. A Board - Sheet : 009 (1 / 11)--------------------83
11.2.45. A Board - Sheet : 009 (2 / 11)--------------------84
11.2.46. A Board - Sheet : 009 (3 / 11)--------------------85
11.2.47. A Board - Sheet : 009 (4 / 11)--------------------86
11.2.48. A Board - Sheet : 009 (5 / 11)--------------------87
11.2.49. A Board - Sheet : 009 (6 / 11)--------------------88
11.2.50. A Board - Sheet : 009 (7 / 11)--------------------89
11.2.51. A Board - Sheet : 009 (8 / 11)--------------------90
11.2.52. A Board - Sheet : 009 (9 / 11)--------------------91
11.2.53. A Board - Sheet : 009 (10 / 11) ------------------ 92
11.2.54. A Board - Sheet : 009 (11 / 11)-------------------93
11.2.55. A Board - Sheet : 010 (1 / 3) --------------------- 94
11.2.56. A Board - Sheet : 010 (2 / 3) --------------------- 95

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11.2.57. A Board - Sheet : 010 (3 / 3)----------------------96
11.2.58. A Board - Sheet : 011 (1 / 2)----------------------97
11.2.59. A Board - Sheet : 011 (2 / 2)----------------------98
11.2.60. A Board - Sheet : 012 (1 / 5)----------------------99
11.2.61. A Board - Sheet : 012 (2 / 5)-------------------- 100
11.2.62. A Board - Sheet : 012 (3 / 5)-------------------- 101
11.2.63. A Board - Sheet : 012 (4 / 5)-------------------- 102
11.2.64. A Board - Sheet : 012 (5 / 5)-------------------- 103
11.2.65. A Board - Sheet : 013 (1 / 3)-------------------- 104
11.2.66. A Board - Sheet : 013 (2 / 3)-------------------- 105
11.2.67. A Board - Sheet : 013 (3 / 3)-------------------- 106
11.2.68. A Board - Sheet : 014 (1 / 3)-------------------- 107
11.2.69. A Board - Sheet : 014 (2 / 3)-------------------- 108
11.2.70. A Board - Sheet : 014 (3 / 3)-------------------- 109
11.2.71. A Board - Sheet : 015 (1 / 3)---------------------110
11.2.72. A Board - Sheet : 015 (2 / 3)---------------------111
11.2.73. A Board - Sheet : 015 (3 / 3)---------------------112
11.3. K Board----------------------------------------------------113
11.3.1. K Board (1 / 3)---------------------------------------113
11.3.2. K Board (2 / 3)---------------------------------------114
11.3.3. K Board (3 / 3)---------------------------------------115
11.4. P Board----------------------------------------------------116
11.4.1. P Board (1 / 7)---------------------------------------116
11.4.2. P Board (2 / 7)---------------------------------------117
11.4.3. P Board (3 / 7)---------------------------------------118
11.4.4. P Board (4 / 7)---------------------------------------119
11.4.5. P Board (5 / 7)-------------------------------------- 120
11.4.6. P Board (6 / 7)-------------------------------------- 121
11.4.7. P Board (7 / 7)-------------------------------------- 122
11.5. V Board--------------------------------------------------- 123
11.5.1. V Board (1 / 6)-------------------------------------- 123
11.5.2. V Board (2 / 6)-------------------------------------- 124
11.5.3. V Board (3 / 6)-------------------------------------- 125
11.5.4. V Board (4 / 6)-------------------------------------- 126
11.5.5. V Board (5 / 6)-------------------------------------- 127
11.5.6. V Board (6 / 6)-------------------------------------- 128
11.6. XH Board------------------------------------------------- 129
11.6.1. XH Board (1 / 2) ----------------------------------- 129
11.6.2. XH Board (2 / 2) ----------------------------------- 130
12 Exploded View and Replacement Parts List--------- 131
12.1. Exploded View and Mechanical Replacement
Parts List ------------------------------------------------- 131
12.2. Electrical Replacement Parts List------------------ 131
12.2.1. Replacement Parts List Notes ----------------- 131
12.2.2. Electrical Replacement Parts List------------- 132

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1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground
such as a water pipe as shown in Figure 1.
3. Use the Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part and measure the voltage at each point.
5. The potential at any point (touch current) expressed as voltage U1and U2, do not exceed the following values:
For AC: U1= 35 V (peak) and U2= 0.35 V (peak);
For DC: U1= 1.0 V,
NOTE :
The limit value of U2= 0.35 V (peak) for AC and U1= 1.0 V for DC correspond to the values 0.7 mA (peak) AC and 2.0 mA
DC.
The limit value U1= 35 V (peak) for AC correspond to the value 70 mA (peak) AC for frequencies greater than 100 kHz.
6. Should a measurement be out of the limits specified, there is a possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the customer.

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2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are
called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-
effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the
incidence of component damage caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminium foil to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charges sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it (most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or
comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices (otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD)
sufficient to damage an ES device).

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3 About Lead Free Solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead Solder and PbF will refer to Lead Free Solder.
The Lead Free Solder (PbF) used in our manufacturing process and discussed below is (Sn+Ag+Cu).
Those are Tin (Sn), Silver (Ag) and Copper (Cu), although other types are available.
This model uses PbF in its manufacture due to environmental conservation issues. For service and repair work, we would suggest
the use of PbF as well, although Pb may be used.
PCBs manufactured using lead-free will have the “PbF within a leaf Symbol” stamped on their back.
Caution
• PbF has a higher melting point than that of standard solder. Typically the melting point is 50 ~ 70°F (30~40°C) higher.
Please use a high temperature soldering iron and set it to 700 ± 20°F (370 ± 10°C).
• PbF will tend to splash when heated too high (about 1100°F or 600°C).
If you must use Pb solder, please completely remove all of the PbF on the pins or solder area before applying Pb. If this is not
practical, be sure to heat the PbF until it melts, before applying Pb.
• After applying PbF to double layered boards, please check the component side for excess solder which may flow onto the
opposite side (see Figure 2).
Figure 2
Suggested PbF
There are several kinds of PbF available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. However, Sn+Cu
(tin, copper) and Sn+Zn+Bi (tin, zinc, bismuth) solders can also be used.
Figure 3

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4 Self Check Function
4.1. Self Check
1. Self Check is used to automatically check the bus lines and hexadecimal codes of the TV set.
2. To get into the Self Check mode, press the “DOWN” button on the customer’s controls at the front of the set, at the same time
pressing the “MENU” button on the remote control. The screen that will show is represented by Figure 4.
3. Press both “OFF TIMER” button on the remote control and “DOWN” key button on the control panel.
Figure 4
4.2. Power LED Blinking Timing
1. Subject
Information of LED Flashing timing.
2. Contents
When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the
defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:
Blinking times Contents Check Point
2 INVERTER - SOS FPGA 6pin
5 24V down VCTP 106pin
6 SUB 8V down VCTP 1pin
7 3.3V Voltage down VCTP 160pin
8 FPGA down VCTP 105pin

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5 Chassis Board
5.1. Chassis Installation
1. Stick FELT to SIDE AV BRACKET.
• Stick the SIDE AV INDI. SHEET on the SIDE AV BRACKET.
• Insert the SIDE AV BRACKET from the side position of the A-PCB.

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6 Location of Controls and Components
6.1. Wire Dressing
1. Wiring No.1 ~ No.7
2. Remove dust of terminal of LVDS and PB connector. (by ion blow)
Pos. A11
3. Insert LVDS into A11.
4. Remove dust of terminal of FFC and PB connector. (by ion blow)
Pos. XH2&A88
5. Insert FFC into XH2 and A88.
6. Insert tunner connector into cable connector. (TU2901)

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Wire Clamper
1234567891011
No.1 A10 ~ V10
No.2 A01 ~ K01
No.3 A12 ~ SP(L)
No.4 A12 ~ SP(R)
No.5 LCD ~ P5
No.6 LCD ~ P6
No.7 A20 ~ P4

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7 Disassembly and Assembly Instructions
7.1. 3 Pin AC Cord
1. Clamp plug with clamper.
2. Insert beads 3pcs. And slide down to lower hole.
7.2. 2 Pin AC Cord
Slot ac cord cover and clamping at ac cord wire.

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7.3. AC Cord Installation
1. Put on the AC CODE BRACKET on the CABINET.
2. Fix the AC CODE BRACKET with SCREW.
3. AC CODE BARRIER setting.
4. Insert AC CODE connector into P-PCB connector.
5. Clamp the AC CODE.
6. Insert AC CODE bushing into the AC CODE BRACKET.

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7.4. VESA Metal Assembly
1. Assemble LCD TOP MTG (L,R) , VESA METAL (upper) and fix them with screw. Please use jig for vesa metal assembly
preparation.

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7.5. VESA Metal Installation
1. Put VESA METAL (BC) on the BACK COVER.
2. Fix them with SCREWS.

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7.6. Pedestal Assembly
Step 1
Setting PEDESTAl COVER and STAND MTG SPACER and BASE PLATE with SCREWS.
Step 2
1. Stick the FELT at bottom ROTATION PLATE.
2. Make sure ROTATION PLATE surfacefully cover by grease. Follow the picture

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Step 3
Setting ROTATION PLATE and BUSH with SCREWS.
Step 4
Setting STAND MTG with SCREWS.

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7.7. LED Panel Installation And Fitting
1. Put LED SHADE RIB on CABINET.
2. Fix LED PANEL on CABINET.
3. Wire connecting. (V10)
4. Put V-PCB on CABINET.
5. Fix them with SCREW.
6. Insert the CLAMPER.

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7.8. Control Panel Assembly
1. Wire connecting. (K1)
2. Assemble POWER BUTTON to the K-PRINT.
3. Assemble K-PRINT, CONTROL BUTTON, CONTROL PANEL BRACKET.
4. Fix them with SCREWS.
5. Stick the FELT.

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7.9. Side AV Bracket And Control Button Fixing
1. Stick P-PCB BARRIER and put all METAL part follow to the picture. Fix all metal part with screw.
2. Put CONTROL PANEL ASSY on the CABINET. Fix the CONTROL PANEL with SCREWS.