Panasonic TX-37LZ800H Service manual
TX-37LZ800H
A
LH69 Chassis
ORDER NO. MTV0801626CE
LCD TV
Specifications
Power Source :
Power Consumption
Average Use 200 W
Standby condition 0.3 W
Display panel
Aspect Ratio 16:9
Visible screen size 819 mm (W) × 460 mm (H)
(No. of pixels) 2,073,600 (1,920 (W) × 1,080 (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
Receiving Systems / Band name SYSTEMS FUNCTIONS
C 110-240 V, 50/60 Hz
Horizontal scanning frequency 31 - 69 kHz
Vertical scanning frequency 59 - 86 Hz
———————————————————————————————————————
1 PAL B, G, H
2 PAL I Reception
3 PAL D, K
4 SECAM B, G
5 SECAM D, K
6 SECAM K1
7 NTSC M (NTSC 3.58 / 4.5 MHz)
———————————————————————————————————————
8 NTSC 4.43 / 5.5 MHz Playback from
9 NTSC 4.43 / 6.0 MHz
of broadcast
transmission and
playback from
video cassette tape
recorders.
special VCR’s or DVD.
© 2008 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TX-37LZ800H
10 NTSC 4.43 / 6.5 MHz
11 NTSC 3.58 / 5.5 MHz Playback from
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
16 PAL 60 Hz / 6.0 MHz
17 PAL 60 Hz / 6.5 MHz
Aerial - Rear VHF / UHF
Operation Conditions Temperature : 0°C - 40°C
Humidity : 20% -- 80% RH (non-condensing)
Connection Terminals :
AV1 AUDIO L-R RCA PIN Type × 2 0.5 V[rms]
Input VIDEO RCA PIN Type × 1 1.0 V[p-p] (75 Ω )
COMPONENT Y 1.0 V[p-p] (including synchronization)
PB/CB,PR/C
AV2 AUDIO L-R RCA PIN Type × 2 0.5 V[rms]
Input VIDEO RCA PIN Type × 1 1.0 V[p-p] (75 Ω )
COMPONENT Y 1.0 V[p-p] (including synchronization)
PB/CB,PR/C
AV3 AUDIO L-R RCA PIN Type × 2 0.5 V[rms]
Input 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)
AV4 AUDIO L-R RCA PIN Type × 2 0.5 V[rms]
Input 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)
Others HDMI 1 / 2 / 3 Input TYPE A Connectors O This TV supports “HDAVI Control 3”
PC Input HIGH-DENSITY D-SUB 15 PIN R, G, B / 0.7 V[p-p] (75 Ω)
DIGITAL AUDIO
OUT
Card Slot SD CARD slot × 1
Monitor AUDIO L-R RCA PIN Type × 2 0.5 V[rms] (high impedance)
Output VIDEO RCA PIN Type × 1 1.0 V[p-p] (75Ω )
Dimensions (W × H × D) 933 mm × 650 mm × 295 mm (With TV Stand)
PCM, Fiber optic
933 mm × 608 mm × 105 mm (TV only)
R
R
±0.35 V[p-p]
±0.35 V[p-p]
function.
HD, VD / TTL LEVEL 2.0-5.0 V[rms] (high
impedance)
special VCR’s or DVD.
Special Disc Players
and Special VCR’s or DVD.
Mass 23.0 kg (Net)
Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
CONTENTS
Page Page
1 Location of Lead Wiring 4 1.1. Wire Dressing 4
2
TX-37LZ800H
1.2. Wire Dressing and Connections 6
2 Disassembly for Service
2.1. VESA and Rear Center Cover Installation
2.2. Pedestal Assembly Preparation
2.3. LCD Panel Assembly Installation
2.4. LED Panel and V-PWB Assembly Installation
2.5. LCD MTG Installation
2.6. EMI Installation
2.7. Control Panel Installation
2.8. Power Button Assembly Installation
3 Chassis Board
3.1. Chassis Installation
4 Adjustment
4.1. Voltage Chart of DG-Board
4.2. Voltage Chart of H board
4.3. Voltage Chart of A Board
7
7
8
9
10
11
12
14
15
16
16
17
17
17
4.4. Voltage Chart of P board
5 Schematic Diagram
5.1. DG Board
5.2. H Board
5.3. K Board
5.4. P Board
5.5. S Board
5.6. V Board
6 Parts Location & Mechanical Replacement Parts List
6.1. Parts Location
7 Packing Exploded View
8 Replacement Parts List
8.1. Replacement Parts List Notes
8.2. Electrical Replacement Parts List
17
17
18
18
72
85
86
93
94
97
97
98
99
99
100
3
TX-37LZ800H
1 Location of Lead Wiring
1.1. Wire Dressing
4
TX-37LZ800H
5
TX-37LZ800H
1.2. Wire Dressing and Connections
CONNECTION 1 2 3 4 5 6 7 8 9 10 11
1 CN 2 ~ P 2
2 A2~P4
3 A1~P3
4 CN 2 ~ A 6
5 G1~A4
6 G2~A5
7 V1~A7
8 A 12 ~ SPEAKER (L)
9 A 12 ~ SPEAKER (R)
10 P1~SW2
6
2 Disassembly for Service
2.1. VESA and Rear Center Cover Installation
1. Put the VESA/L/R on the LCD panel and fix them with the screws.
2. Put the rear center cover on the LCD bottom mtg and fix it with the screws.
TX-37LZ800H
7
TX-37LZ800H
2.2. Pedestal Assembly Preparation
1. Put pedestal assembly to set with four (4) screws.
8
2.3. LCD Panel Assembly Installation
TX-37LZ800H
9
TX-37LZ800H
2.4. LED Panel and V-PWB Assembly Installation
1. Put LED panel and V-PWB assembly to cabinet assembly with two (2) screws.
Tightening torque should be : 60 (-10/+20) N.cm. or 6 ( -1/+2) Kgfcm.
10
2.5. LCD MTG Installation
1. Put LCD MTG (Side and Corner) to cabinet assembly with screws.
2. Put LCD MTG (Top and Bottom) to LCD panel (8) screws.
3. Put LCD MTG (Top and Bottom) to cabinet assembly with (8) screws.
TX-37LZ800H
11
TX-37LZ800H
2.6. EMI Installation
2.6.1. EMI 1
Assembly contents:
1. Insert LVDS into T-connector.
2. Stick tape to fix LVDS.
3. Stick the gaskets on LCD panel.
4. Stick the sponges at LCD panel.
12
2.6.2. EMI 2
Assembly Contents:
1. Insert LVDS into T-connector.
2. Stick tape to fix LVDS.
3. Stick the gaskets on LCD panel.
TX-37LZ800H
13
TX-37LZ800H
2.7. Control Panel Installation
14
2.8. Power Button Assembly Installation
TX-37LZ800H
15
TX-37LZ800H
3 Chassis Board
3.1. Chassis Installation
1. Put the chassis frame on the LCD and fix it with screws (No. 31~55).
2. Put the DG-pcb P-pcb on the chassis frame and fix them with screws (No. 1~21).
3. Insert the clampers to the chassis frame.
4. Insert the side AV bracket from the side position of the DG-pcb and fix it with a screw (No. 21).
5. Joint DG-pcb and H-pcb with 80PIN CONNECTOR.
Refer to the parts list to confirm the PCB No.
Clamper
TMM15481 (No.1~10) n = 10
TMME287 (No.11~12) n = 2
TMME047 (No.21~23) n = 3
16
4 Adjustment
4.1. Voltage Chart of DG-Board
• Set A-Board to a dummy set and check the compliance with the specified voltage as following table.
Power Supply Name Measurement Point Specification (V)
SUB1.8V TP5602 1.76 - 1.85
SUB1.2V TP5601 1.22 - 1.27
SUB3.3V TP5600 3.19 - 3.39
DVDDIO3.3V/TVDD3.3V TP4531 3.23 - 3.37
HQLV3.3V TP4240 3.24 - 3.41
HQDDR2.5V TP4207 2.44 - 2.56
HQ3.3V TP5433 3.18 - 3.47
HQVD1.2V TP5412 1.19 - 1.26
4.2. Voltage Chart of H board
• Set H-Board to a dummy set and check the compliance with the specified voltage as following table.
Power Supply Name Measurement Point Specification (V)
AUD3.3V TP2031 3.24 - 3.38
DVDD1.8V TP2032 1.77 - 1.83
TX-37LZ800H
4.3. Voltage Chart of A Board
Power Supply Name Measurement Point Specification (V)
SUB 1.8 V TP5602 1.76 - 1.85
SUB 1.2 V TP5601 1.22 - 1.27
SUB 3.3V TP5600 3.19 - 3.39
DVDDIO 3.3 V/TVDD 3.3 V TP4531 3.23 - 3.37
4.4. Voltage Chart of P board
Power Supply Name Measurement Point Normal condition (V) Normal condition (V)
SOUND_VCC TP7050 17.0 - 20.5 < 3.0
BT-30V TP7060 28.5 - 31.5 < 3.0
SUB_5V TP7059 4.9 - 5.3 < 1.0
SUB_9V TP7055 8.8 - 9.4 < 1.0
DTV_12V TP7057 11.6 - 12.4 < 1.0
PANEL_12V TP7058 11.6 - 12.4 < 2.0
5VS TP7061 4.8 - 5.2 4.8 - 5.2
STB_5V TP7062 4.8 - 5.2 4.8 - 5.2
SUB_6V TP7064 5.7 - 6.5 < 1.0
V+ - V- TP7025 - TP7026 370 - 395 no care
12V TP7070 11.6 - 12.4 < 3.0
17
TX-37LZ800H
5 Schematic Diagram
5.1. DG Board
5.1.1. DG Board - Sheet : 001 (1 / 10)
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<2A>
5.1.2. DG Board - Sheet : 001 (2 / 10)
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TX-37LZ800H
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<4B>
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TX-37LZ800H
5.1.3. DG Board - Sheet : 001 (3 / 10)
<1B>
<2B>
<3B>
<1C>
<4B>
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<2C>
5.1.4. DG Board - Sheet : 001 (4 / 10)
TX-37LZ800H
<1C>
<1D>
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<2C>
<4D>
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TX-37LZ800H
5.1.5. DG Board - Sheet : 001 (5 / 10)
<1D>
<2D>
<3D>
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<2E>
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<4D>
<4E>
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5.1.6. DG Board - Sheet : 001 (6 / 10)
TX-37LZ800H
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<2F>
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TX-37LZ800H
5.1.7. DG Board - Sheet : 001 (7 / 10)
<1F>
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5.1.8. DG Board - Sheet : 001 (8 / 10)
TX-37LZ800H
<1G>
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TX-37LZ800H
5.1.9. DG Board - Sheet : 001 (9 / 10)
<1H>
<2H>
<3H>
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<2I>
<3I>
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5.1.10. DG Board - Sheet : 001 (10 / 10)
<1I>
<2I>
<3I>
TX-37LZ800H
<4I>
<5I>
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TX-37LZ800H
5.1.11. DG Board - Sheet : 002 (1 / 4)
<1A>
<2A>
<3A>
<4A>
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5.1.12. DG Board - Sheet : 002 (2 / 4)
TX-37LZ800H
<1A>
<2A>
<3A>
<4A>
<1B>
<2B>
<3B>
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<5B>
<6B>
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TX-37LZ800H
5.1.13. DG Board - Sheet : 002 (3 / 4)
<1B>
<1C>
<2C>
<2B>
<3B>
<4B>
<5B>
<6B>
<3C>
<4C>
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<6C>
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