Panasonic TX-L32U10B, TX-L32U10E, TX-L37U10B, TX-L37U10E Service manual

ORDER No. PCZ0906109CE

Service Manual

Colour LCD Television

TX-L32U10B

TX-L32U10E

TX-L37U10B

TX-L37U10E

Specifications

(Information in brackets [ ] refers to model 32”)

Power Source: 220-240V AC, 50Hz

Power Consumption 130W [115W] Stand-by Power Consumption: 0.3W (Without monitor out recording)

13W (With monitor out recording)

Aerial Impedance: 75Ω unbalanced, Coaxial Type Receiving System: U10B U10E

PAL-I PAL-I/H, B/G, D/K PAL-525/60 (AV only) SECAM B/G, D/K, L/L’ DVB-T (via UHF aerial input) PAL-525/60 (AV only) M.NTSC (AV only) DVB-T (Digital Terrestrial Services) NTSC (AV only) DVB-C (Digital cable services)

M.NTSC (AV only)

Receiving Channels: U10B U10E

UHF E21-E68 VHF E2-E12 VHF H1-H2 (ITALY)

GLP24 Chassis

NTSC (AV only)

VHF A-H (ITALY) VHF R1-R2 VHF R3-R5 VHF R6-R12 UHF E21-E69 CATV (S01-S05) CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10) CATV S21-S41 (Hyperband)

Operating Conditions: Temperature: 0°C ÷ 35°C

Humidity: 20% ÷ 80% RH (non condensing)

and

Intermediate Frequency: Video/Audio U10B U10E

Video 38.9MHz 38.9MHz, 33.9MHz

Audio 32.90MHz 33.4MHz (B/G), 33.16MHz (A2)

32.35MHz(NICAM) 33.05MHz (NICAM B/G, D/K, L’)

32.4MHz (D/K), 32.66MHz (CZ STEREO)

40.4MHz (L’), 39.75MHz (L’ NICAM)

Colour 34.47MHz 34.47MHz (PAL)

34.5MHz, 34.65MHz (SECAM)

38.3MHz, 38.15MHz (SECAM L’) Terminals:

AV1 IN Video (21 pin) 1V p-p 75Ω Audio (21 pin) 500mV rms 10kΩ RGB (21 pin) 0,7V p-p 75Ω

AV1 OUT Video (21 pin) 1V p-p 75Ω

Audio (21 pin) 500mV rms 1kΩ

AV2 IN Video (21 pin) 1V p-p 75Ω

Audio (21 pin) 500mV rms 10kΩ

RGB (21 pin) 0,7V p-p 75Ωč

S-video IN (21-pin) Y: 1V p-p 75Ω C:0,3V p-p 75Ω

AV2 OUT Video (21 pin) 1V p-p 75Ω

Audio (21 pin) 500mV rms 1kΩ

AV3 IN S-Video IN (4-pin) Y: 1V p-p 75Ω

C:0,286V p-p 75Ω

Audio (RCAx2) 500mV rms 10kΩ

Video (RCAx1) 1V p-p 75Ω

HDMI1, HDMI2 Type A Connector COMPONENT Video (RCAx3) Y:1V p-p 75Ω (including synchronization)

Pb, Pr: ±0,35V p-p 75Ω

AUDIO IN Audio (RCAx2) 500mV rms 10kΩ (used for HDMI1, COMPONENT-AUDIO) AUDIO OU T Audio (RCAx2) 500mV rms 1kΩ (high Impedance)

DIGITAL AUDIO OUT PCM / Dolby Digital / DTS , Fiber optic CARD SLOT SD CARD slot ×1

LCD screen: L5EDD9T00021 [L5EDD8T00004] 1920 x 1080 XGA, 16:9 Visible Diagonal 940mm [800mm]

Audio Output: 20W (2x10W), 10% THD

Headphones: 3.5mm (M3), 8Ω Impedance

Accessories supplied : Remote Control 2 x R6 (UM3) Batteries Dimensions:

Height: Width: Depth: Including TV stand 620mm 915mm 287mm [551mm] [798mm] [217mm]

TV set only 577mm 915mm 91mm

[511mm] [798mm] [87mm]

Net weight:

Including TV stand 16.5kg [13.0kg] TV set only 14.5kg [11.5kg]

Specifications are subject to change without notice. Weights and dimensions shown are approximate.

Warning

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potencial dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products deal within this service information by anyone else could result in serious injury or death.

2

Safety Precautions

Ω

General Guide Lines

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overhe ated 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 touch current checks to prevent the customer from being exposed to shock hazards.

4. Always ensure panel TKP0E16001 is correctly replaced before returning to customer (see Fig.1).

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 Fig. 2.

3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential acr oss the measuring network.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reserve the AC plug in the AC outlet and repeat each of the above measure.

6. The potential at any point (TOUCH CURRENT) expressed as voltage U1 and U2, does not exceed the following values: For a. c.: U1 = 35 V (peak) and U2 = 0.35 V (peak); For d. c.: U1 = 1.0 V, Note: The limit value of U2 = 0.35 V (peak) for a. c. and U1 = 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and

2.0 mA d. c. The limit value U1 = 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.

7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment shoul d be repaired and rechecked before it is returned to the customer.

COLD WATER PIPE (EARTH GROUND)

TO APPLIANCES EXPOSED

METAL PARTS Resistance values in ohms (Ω) V: Voltmetr or oscilloscope

(r.m.s. or peak reading)

NOTE – Appropriate measures should be taken to obtain the correct value in case of non-sinusoidal waveforms

Fig. 1

Measuring network for TOUCH CURRENTS

C

R

=1500Ω

S

R0=500Ω

Input resistance: ≥ 1M Input capacitance: ≤ 200pF Frequency range: 15Hz to 1MHz and d.c.respectively

Fig. 2

=0.22μF

S

U

10k

1

0.022μF

V

U2 (V)

4

Prevention of Electrostatic 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 electrostatic 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 aluminum foil, to prevent electrostatic charge build up 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 charge 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 cond uctive foam, aluminum 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 th e 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).

There are special components used in this equipment which are important for safety. These parts are marked by in schematic diagrams, exploded views and replacement parts list. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire, or other hazards. Do not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

5

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 used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d suggest the use of Pb free solder as well, although Pb solder may be used. PCBs manufactured using lead free solder will have the PbF within a leaf Symbol

stamped on the back of PCB.

Caution

• Pb free solder has a higher melting point than 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).

• Pb free solder 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 Pb free solder on the pins or solder area before applying Pb solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

• After applying PbF solder to double layered boards, please check the component side for excess solder which may

flow onto the opposite side. (see Fig.3)

Suggested Pb free solder

There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used. (see Fig.4)

Fig.3

Fig.4

6

Applicable Signals

Component (Y, Pb, Pr), HDMI

525 (480) / 60i * * 525 (480) / 60p * *

625 (576) / 50i * * 625 (576) / 50p * * 750 (720) / 60p * * 750 (720) / 50p * * 1,125 (1,080) / 60i * * 1,125 (1,080) / 50i * * 1,125 (1,080) / 60p * 1,125 (1,080) / 50p * 1,125 (1,080) / 24p *

Applicable input signal for PC is basically compatible to HDMI standard timing.

Signal name COMPONENT HDMI

PC (from HDMI terminal)

Signal name Horizontal frequency (kHz) Vertical frequency (Hz)

640 × 480 @60 Hz 750 (720) / 60p 45.00 60.00 1,125 (1,080) / 60p 67.50 60.00

Note:

• Signals other than above may not be displayed properly.

• The above signals are reformatted for optimal viewing on your display.

• PC signal is magnified or compressed for display, so that it may not be possible to show fine detail

with sufficient clarity.

31.47 60.00

7

Service Hints

How to remove the backcover

Remove the 19 fixing screws. (see Fig.5)

SCREWS

How to remove the Pedestal assembly

Lay the main unit face down. (see Fig.6)

Remove the 4 fixing screws and the pedestal assembly. (see Fig.7)

Fig.5

Fig.6

Fig.7

SCREWS

8

Chassis Board Layout

A11A12A

A

V

POWER UNIT

V-BOARD

Board Name Function

A-Board Tuner, AVSW,Peaks-AVC,HDMI,CI Slot, Global

Core, GENX, AV Terminal, SD Slot, Speaker out, ADV

Power Unit Power Supply, Main Input

V-Board Remote Receiver, Cats, R/G LED, Timer LED G-Board Side AV Connector

Location of Lead Wiring

To find the Part Number of required wire in Replacement Parts List click on the wire name in red box.

A11-PAN

( 32” ) + ( 37” )

( 37” )

A11-PAN A20-P4

( 32” )

G-BOARD

A-BOARD

P4

20

03

G04

A04

S01

P6

P5

P1

01

10

TU2901

SP

10

SP

A01-S01

( 32” )

( 37” )

A12-SP

( 32” )

( 37” )

A10-V10

( 32” )

( 37” )

9

Setting Inspection

Voltage Confirmation

Confirm the following voltages:

A board

5VS TP2765 5.6V +/- 0.25V SUB_ TNR_6V TP2770 5.6V +/- 0.25V GND TP2781 0 TV_SOS TP5481 0

INVERTER_SOS TP2761 0 P17V TP2777 17V +/- 1V SUB_F_12V TP2782 12V +/- 1V INV_ON TP2759 2.85V +/- 2%

TP No.

Voltage

10

Self Check

Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check, switch off the TV set at the power button.

TX-L32U10E

TX-L32U10B

TX-L37U10E

TX-L37U10B

32FHD

ADV O.K. ADAV O.K. TUN O.K. GENX O.K. MEM1 O.K. MEM2 O.K. AVSW O.K. OFDM O.K. TEMP O.K. VIF O.K.

32FHD

ADV O.K. ADAV O.K. TUN O.K. GENX O.K. MEM1 O.K. MEM2 O.K. AVSW O.K. OFDM O.K. TEMP O.K. VIF O.K.

37FHD

ADV O.K. ADAV O.K. TUN O.K. GENX O.K. MEM1 O.K. MEM2 O.K. AVSW O.K. OFDM O.K. TEMP O.K. VIF O.K.

37FHD

ADV O.K. ADAV O.K. TUN O.K. GENX O.K. MEM1 O.K. MEM2 O.K. AVSW O.K. OFDM O.K. TEMP O.K. VIF O.K.

Display Ref. No. Description P.C.B.

ADV IC4510 A/D CONVERTER A-Board

ADAV IC4510 A/D CONVERTER A-Board

TUN TU2901 TUNER A-Board

GENX IC1100 MICROPROCESSOR A-Board MEM1 IC1101 EEPROM (GENX) A-Board MEM2 IC8502 EEPROM (PEAKS AVC) A-Board AVSW IC3001 AUDIO VIDEO SWITCH A-Board

COFDM IC8301 COFDM DEMODULATOR A-Board

TEMP IC2750 TEMP SENSOR A-Board

VIF TU2901 TUNER A-Board

Panasonic 2009LCD

Self Check Complete

PEAKS-SOFT 1.209 PEAKS-EEP 01.00.0006 GenX-SOFT 1.00.00 GenX-EEP 1.03.36 GenX-ROMCORR 1.00.00

Panasonic 2009LCD

Self Check Complete

PEAKS-SOFT 1.209 PEAKS-EEP 01.00.0020 GenX-SOFT 1.00.00 GenX-EEP 1.03.36 GenX-ROMCORR 1.00.00

Panasonic 2009LCD

Self Check Complete

PEAKS-SOFT 1.209 PEAKS-EEP 01.00.0005 GenX-SOFT 1.00.00 GenX-EEP 1.03.36 GenX-ROMCORR 1.00.00

Panasonic 2009LCD

Self Check Complete

PEAKS-SOFT 1.209 PEAKS-EEP 01.00.0019 GenX-SOFT 1.00.00 GenX-EEP 1.03.36 GenX-ROMCORR 1.00.00

SUM

MODEL ID

EDID

SUM

MODEL ID

EDID

SUM

MODEL ID

EDID

SUM

MODEL ID

EDID

7981

06

03123100 00000004

22 1b0b----

798D

06

03053100 00000004

22 1b0b----

7980

06

03123100 00000010

22 1b0b----

7986

06

03053100 00000010

22 1b0b----

If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".

11

Power LED blinking timing chart

1. Subject Information of LED Flashing timing chart.

2. Contents When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by number of blinking of the Power LED on the front panel of the unit.

Blinking

times

Once

1 INVERTER_SOS

2 FAN_SOS A BOARD

3 SOS

4

Blinking timing Contents Check point

4 sec

Light

No Light

LCD PANEL

A BOARD

SUB_F_12V A BOARD

5 MAIN9V A BOARD

6 SUB5V

7 SUB3.3V A BOARD

8 MAIN3.3V A BOARD

9 SOUND_SOS A BOARD

13 EMERGENCY SOS A BOARD

A BOARD V BOARD

12

Service Mode Function

MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu

How to enter SERVICE

While pressing (-/v) button on TV unit, press on the remote control for 3 times within 2 seconds.

Note:

To exit from Service mode, press the exit button on remote control.

0

13

SERVICE

A

SERVICE ADJUST WB-ADJ OPTION SRV-TOOL

Peaks SOFT 1.209 OPTION 1 0c Peaks EEP 01.00.0006 OPTION 2 ef LSI DATA 0.00.01 OPTION 3 01 STBY SOFT 1.00.00 Model ID 06 STBY EEP 1.03.36 03123100 STBY ROMCOR 1.00.00 00000004 RBCnt 000 INV Cnt 0000

1

ADJUST DYNAMIC CONTRAST YMAX

1,2:MAIN SELECT 3,4:SUB SELECT 9 :PICTURE MENU SELECT YELLOW:AUTO ADJUST VOL:ADJUST OK :WRITE

1

WB-ADJ DYNAMIC R-GAIN

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT 7 :COLOR TEMP SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

1

OPTION DYNAMIC Boot

1,2:MAIN SELECT 3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST

1

SRV-TOOL DYNAMIC

000

FE

ROM

00

2

ADJUST DYNAMIC

3

COLOR

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

2

WB-ADJ DYNAMIC G-GAIN

3

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7 :COLOR TEMP SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

2

OPTION DYNAMIC STBY-SET

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT OK :POWER OFF

2

3C

FF

00

DJUST DYNAMIC

3

TINT

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

WB-ADJ DYNAMIC B-GAIN

3

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7 :COLOR TEMP SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

OPTION DYNAMIC Emergency

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST

Key Command

• Press the 3/4 button to change the adjustment values or function.

• Press the 1/2 button to step up/down through the functions and adjustments

• Press the numerical button VOLUME (+/-) to change option item.

• Press the OK button after each adjustment has been made to store the required values.

ON

00

F0

ADJUST DYNAMIC

3

SUB-BRT

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

WB-ADJ DYNAMIC R-CENT

3

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7 :COLOR TEMP SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

OPTION DYNAMIC Y/C Delay

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

800

7D

DJUST DYNAMIC

3

BACKLIGHT

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

WB-ADJ DYNAMIC G-CENT

3

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT 7 :COLOR TEMP SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

OPTION DYNAMIC OPT 1

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

4E6

80

00001100

DJUST DYNAMIC

H-POS

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

WB-ADJ DYNAMIC B-CENT

3

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4 4

7 :COLOR TEMP SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

OPTION DYNAMIC OPT 2

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

11101111

61

DJUST DYNAMIC

0

H-AMP

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

OPTION DYNAMIC OPT 3

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

0

00000001

ADJUST DYNAMIC V-POS

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

DJUST DYNAMIC

0

V-AMP

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK :WRITE

0

1,2:MAIN SELECT 9 :PICTURE MENU SELECT OK :ENTER

14

Option Bytes Description

OPTION1

b0 ATP Search Speed Slow (1) / Fast (0) b1 TXT Ch Refresh On (1) / Off (0) b2 ID-1 On (1) / Off (0) b3 Macrovision Auto-Judge On (1) / Off (0) b4 Surround enable low bit (*1) On (1) / Off (0) b5 Surround enable low bit (*1) On (1) / Off (0) b6 Pre Emphasis On (1) / Off (0) b7 TINT_COMPONENT_HDMI On (1) / Off (0)

OPTION2

b0 Adjust lgain enable On (1) / Off (0) b1 A2 BC enable (5.5) On (1) / Off (0) b2 A2 DK1 enable (6.26) On (1) / Off (0) b3 A2 DK3 enable (5.742) On (1) / Off (0) b4 NICAM scan On (1) / Off (0) b5 NICAM enable (5.5) On (1) / Off (0) b6 NICAM enable (6.0) On (1) / Off (0) b7 NICAM enable (6.5) On (1) / Off (0)

OPTION3

b0 NICAM priority (ASIA/M.E) On (1) / Off (0) b1 NICAM priority (K/UK) On (1) / Off (0) b2 NICAM priority (China) On (1) / Off (0) b3 NICAM priority (NZ/INDN) On (1) / Off (0) b4 NICAM priority (AUS) On (1) / Off (0) b5 NICAM priority (E.Europe) On (1) / Off (0) b6 NICAM priority (Special) On (1) / Off (0) b7 SASO mute Not use

OPTION4

b0 All country DVB-S enable On (1) / Off (0) b1 All country DVB-C enable On (1) / Off (0)

15

Adjustment Method

Sub-Contrast/White Balance Adjustment

Instrument Name Connect to Remarks

1. Remote controller

2. LCD WB meter (Minolta CS-1000A equivalent)

3. Comunication jig

4. Computer for external control

Procedure Remarks

Subcontrast adjustment

1. Receive PAL colour bar (100% white) RF signal.

2. Enter “Contrast” adj. In SERVICE mode.

3. Start adjusting by using Yellow Key.

4. If the adjustment finished normally, the letter of Contrast will change from red to black

White Balance adjustment

1. Procedure basically performs checking using the production software and make automatic adjustment using external computer.

2. It adjusts in the mode of : Colour balance Normal as follows.

Viewing Mode Dynamic U10B U10E WHITE Normal WHITE Normal

x: 0.2860 ± 0.010 x: 0.2820 ± 0.010 y: 0.3130 ± 0.010 y: 0.3020 ± 0.010

GRAY Normal GRAY Normal x: 0.2840 ± 0.010 x: 0.2840 ± 0.010 y: 0.3140 ± 0.010 y: 0.3120 ± 0.010

Correlation can be also taken by CA-210 or equivalent

Let the panel standfor more than 3 hours at more than 20 °C. Basically perform adjustment in the ambient environment of room temperature more than 20 °C. The aging time is more than20 min at above room temperature.

Applied signal

100% full colour bar 0,7V p-p white peak

87.5% modulation

100% WHITE

50% GRAY

16

Wiring Diagram

LCD PANEL

HDMI 1

JK4501

HDMI 2

JK4500

JK8401

CI SLOT

YPBPR

JK3100

SD CARD

JK8302

SERVICE

CN0100

TUNER

TU2901

A-BOARD

MAIN INPUT

A11

A20

A03

A10

P6

P4

P2

V10

P5

P1

POWER UNIT

V-BOARD

KEY

SP L/R

A01

A12

JK3002

AV1

JK3003

AV2

D3015

OPT

A04

17

G04

G-BOARD

JK3700

AV3

Video & Stereo Audio Block Diagram

AV1_V 20

AV1_VOUT 19

AV1_RED 15

AV1_GREEN 11

AV1_BLUE 7

JK3002

JK3003

Y,PB,PR

AUDIO IN/OUT,

AV1_L 6

AV1_LOUT 3

AV1_R 2

AV1 21PIN SCART

AV1_ROUT 1

AV2_V 20

AV2_VOUT 19

AV2_RED/C 15

AV2_GREEN 11

AV2_BLUE 7

AV2_L 6

AV2_LOUT 3

AV2_R 2

AV2 21PIN SCART

AV2_ROUT 1

Y

PB PR

L R

JK3100

L

R

Y

PB PR

PC L IN PC R IN

RCA AUDIOOUT L RCA AUDIOOUT R

79 CVBS IN6 44 CVBS/Y+C OUT

43 SAGCVBS OUT3 91 R3

89 G3 87 B3

62 L3IN 56 L1OUT 63 R3IN 55 R1OUT

19 G1/Y IN 23 CVBS IN2

38 Y/Y+CVBSOUT4 37 SAGCVBSOUT4

11 R2/C IN 21 B1/C IN 13 G2/Y IN

15 B2/ C IN 64 L4 IN

54 L4 OUT 65 R IN 53 R2 OUT

95 CY IN1 93 PB IN1

97 PR IN1 70 L IN

71 R IN 52 L OUT

51 R OUT

R6 IN

69 L6 IN

68

AV4 R

AV4 L

AV4 V

IC3001

AV-SWITCH

[C1AB00002855]

83 Y IN4

85 C IN4

81 CVBS IN5

AV4 Y

AV4 C

CVBSin4 5

AV R 49 AV L 50 TV R 60

TV L 61

AUDIOOUT R 59

AUDIOOUT L 58

CVBSin 17

31 33 35

46

DVB CVBS

MAIN Y/CVBS

MAIN PB/C

MAIN PR

RGB CVBS

AV R

AV L TV R TV L

AUDIOOUT R AUDIOOUT L

HP L HP R

OPT_SPDIF

SOY

MAIN RF SIGNAL CVBS

A14 A12

A13 B10

A15

A21 B21 C22

C23 D22

D23

M20 SPDIF_OUT

H22 HPOUT1L

H23 HPOUT1R

IC4510

ADV

[C1AB00003045]

AUDIO VIDEO DECODER

DIGITAL VIDEO OUT

N23

PWM WO L+

5

IC2301

[C1AB00002875]

MAIN AUDIO AMPLIFIER

SP L-

SP L+

N22

M23

PWM WO R+

PWM WO L-

12

7

253034

SP R+

SIF IN2

A17

SIF IN1

A18

AUX INL

B22

AUX INR

A22

M22

PWM WO R14

21

SP R-

RX

8

DVB CVBS

DDR2 800MHz

IC8002 IC8003

FL4201

HDMI1

HDMI2

IC8580

[TVRQ370AE]

NOR FLASH

IIC 3

D12

IC8001- AVC

[MN2WS0059]

B27,A27,B28,A28,B29,B30,C29,C30,D29,D30,F29,F30,G29,G30,

FL4202

H29,H30,J29,J30,K29,K30

FL4203

FL4204

FL4205

IC8301

[C1AB00003049]

TS SERIAL

BUS I/F

SD CARD I/F

57 58

2

FL4206

A-BOARD

(EXCHANGE UNIT)

MAIN RF SIGNAL CVBS

SD CARD DATA

IIC

IC1100

[MNZSFH9GP8L]

IC1101

[C3EBFC000042] EEPROM GenX8

IFAGC

GenX8

SIF AM

IFD1 IFD2

JK4501

HDMI1

JK4500

HDMI2

TUNER

TU2901

ENG37E18KF

21 11

10

12 17

19

CI SLOT

JK8401

SD SLOT

JK8302

HDMI TERMINAL

TA1N

TA1P

TB1N

TB1P

TC1N

TC1P

TCLK1N

TCLK1P

TD1N

2 4 6 8 10 3 1

A04

OPT

D3015

1 2 3 4

A12

40 39 38 37 36 35 33 32 3029

A11

TD1P

TA2N

TA2P

TB2N

TB2P

TC2N

TC2P

TCLK2N

TCLK2P

TD2N

TD2P

24 23 22 21 20 19 17 16 14 13

DIGITAL AUDIO OUT

R L V

JK3700

G-BOARD

Y C

L

R

AV4 R AV4 L AV4 V

AV4 Y AV4 C

HP L OUT HP R OUT

2 4 6 8 10 3 1

G04

L-

L+

SP L

R-

R+

SP R

LCD PANEL

18

Power Supply Block Diagram

A-BOARD (EXCHANGE UNIT)

IC1101

GenX EEPROM

IC1100

GenX8

Microprocessor

24,39,62,64,68,88

IC3001

AUDIO VIDEO SWITCH

4,6,18,22,24,36,82,86

IC2301

SP AMP

IC8502

EEPROM

45,80

19,20, 35,36

8

STB3.3V

SUB5V

SUB9V

MAIN_SND_17V

SUB3.3V

(A1,E1,M9,J9,R1,J1,A9,C1,C3,

C7,C9,E9,G1,G3,G7,G9)

(A1,E1,M9,J9,R1,A9,C1,C3,

C7,C9,E9,G1,G3,G7,G9,J1

IC8301

COFDM

Demodulator

(12,24,36,40,41,51,60)

(4,15,27,39,45,48)

IC8001-AVC

PROCESSOR

MN2WS0059

IC8002

MEMORY

IC8003

MEMORY

1.2V

V-BOARD

SUB3.3V SUB1.2V SUB1.8V

1.8V_DDR I/F

IC8409

BUFFER

IC8410

BUFFER

IC8411

BUFFER

IC8404

BUFFER

IC8405

BUFFER

IC8408

BUFFER

SUB5V

20

SUB3.3V

BT30V

IC5441

1

REG

Vout

Vdd

SUB9V

2

SUB5V STB3.3V

A10

V10

SUB5V

9 5

8

STB3.3V

4

STB3.3V

AVC 2 POWER

20

SUB3.3V

SUB5V

SUB3.3V

SUB1.2V

SUB1.8V

10

Vout

4

11

IC5600

Power AVC

IC5601

Power AVC

20 Vin

20

SUB_F_12V

IC8004

20

SUB3.3V

Clock Gen

5,13,15

SUB3.3V

4

SN2500

D2510

D2500

RM2500

SD CARD

IC8401

IC8580

SUB3.3V

IC8302

5

Vout

REG

SUB3.3V

1Vin

NOR FLASH

37,47

SUB3.3V

C1AB00002913

17,33,2

SUB5V

SUB3.3V

49

PNL12V

A11

1,2 3,4

TO LCD PANEL

IC5480

PEAKS_RESET

IC4510

ANALOG DIGITAL

DECODER

ADV7470BBCZ-5

HDMI TERMINAL

JK4500

HDMI 2

JK4501

HDMI 1

TU2901

TUNER

11,24

5,16

19

13 12

12

16

3

STB3.3V

SUB_F_12V

SUB5V

5VS

STB5V

STB3.3V

TVDD_3.3V CVDD_1.8V

DVDD_1.8V

DVDDIO_3.3V

VAVDD_1.8V AAVDD_3.3V

PVDD_1.8V

5V

TUNER5V

BT30V

5VCARD

AAVDD_3.3V

DVDDIO_3.3V

PVDD_1.8V

VAVDD_1.8V

CVDD_1.8V

DVDD_1.8V

5

Vout

IC8403

REG

IC2008

REG

IC4511

REG

IC4513

REG

IC4512

REG

SUB_F_12V

4

Vin

1

Vin

4

Vin

SUB_F_12V

P17V

SUB_F_12V

5VS

SUB_TNR_6V

SUB3.3V

SUB_F_12V P17V 5VS SUB_TNR_6V

STB5V

A03

12,13

20,22

23

16,17

19

CN0100

4

POWER SUPPLY

PNL12V

MAIN_SND_17V

1

Vin

4

Vin

4

Vin

4

Vin

61

Vin

SUB5V

SUB3.3V

SUB9V

SUB5V

TUNER5V

3

5

Vout

Q5412

Q5417

IC5409

REG

IC5405

REG

IC2902

REG TUN

D3015

OPT

SERVICE

JK8401

5VCARD

17,18,

51,52

CI SLOT

19

Panasonic TX-L32U10B, TX-L32U10E, TX-L37U10B, TX-L37U10E Service manual

Specifications

CONTENTS

Safety Precautions

Applicable Signals

Service Hints

Setting Inspection

Self Check

Power LED blinking timing chart

Service Mode Function

SERVICE

Option Bytes Description

Adjustment Method

Wiring Diagram