Panasonic TX-32LMD70A, TX-32LMD70FA, TX-32LMD71FA, TX-32LMD72FA, TX-26LMD70A Service manual

ORDER No. PCZ0709109CE

Service Manual

Colour LCD Television

TX-32LMD70A TX-32LMD70FA TX-32LMD71FA TX-32LMD72FA

TX-26LMD70A TX-26LMD70FA TX-26LMD71FA

GLP22M Chassis

Specifications

(Informations in brackets [ ] refers to model 26”)

Power Source: 220-240V AC, 50Hz

Power Consumption 135W [104W] Stand-by Power Consumption: 1.0W (TV ONLY)

Aerial Impedance: 75Ω unbalanced, Coaxial Type Receiving System: LMD70A LMD70FA

Receiving Channels: LMD70A LMD70FA

13W (TV+DVB set to record)

PAL-I PAL-I/H, B/G, D/K PAL-525/60 (AV only) SECAM B/G, D/K, L/L’ DVB (via UHF aerial input) PAL-525/60 (AV only) M.NTSC (AV only) DVB (via VHF/UHF aerial input) NTSC (AV only) M.NTSC (AV only)

NTSC (AV only)

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

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)

Scanning format: 480i(60Hz), 480p(60Hz), 576i(50Hz), 576p(50Hz), 720p(60Hz), 720p(50Hz), 1.080i(60Hz),

1.080i(50Hz), 1.080p(60Hz), 1.080p(50Hz)

PC signals: VGA, SVGA, XGA, SXGA(compressed)

Horizontal scanning frequency 31 – 69 kHz Vertical scanning frequency 59 – 86 Hz

Panasonic CS ( U.K. ) Ltd.

WILLOUGHBY ROAD,

BRACKNELL,

RG12 8FT.

BERKS.,

Intermediate Frequency: Video/Audio LMD70A LMD70FA

Video 38,9MHz 38,9MHz, 33,9MHz Audio 32.90MHz 33,4MHz (B/G), 33,16MHz (A2)

Colour 34,47MHz 34,47MHz (PAL)

Terminals:

AV1 IN Video (21 pin) 1V p-p 75Ω

AV1 OUT Video (21 pin) 1V p-p 75Ω

AV2 IN Video (21 pin) 1V p-p 75Ω

AV2 OUT Video (21 pin) 1V p-p 75Ω

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

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

AUDIO IN Audio (RCAx2) 500mV rms 10kΩ (for YUV; HDMI1) AUDIO OUT Audio (RCAx2) 500mV rms 1kΩ (high Impedance)

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)

34,5MHz, 34,65MHz (SECAM) 38,3MHz, 38,15MHz (SECAM L’)

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

Audio (21 pin) 500mV rms 1kΩ

Audio (21 pin) 500mV rms 10kΩ RGB (21 pin) 0,7V p-p 75Ω S-video IN (21-pin)Y: 1V p-p 75Ω

C:0,3V p-p 75Ω

Audio (21 pin) 500mV rms 1kΩ

C:0,286V p-p 75Ω Audio (RCAx2) 500mV rms 10kΩ Video (RCAx1) 1V p-p 75Ω

Pb, Pr: ±0,35V p-p 75Ω

PC HIGH-DENSITY D_SUB 15PIN R,G,B: 700mV p-p 75Ω

LCD screen: L5EDD8Q00037 [L5EDD6Q00026]

Audio Output: 20W (2x10W) Headphones: 3,5mm (M3), 8Ω Impedance Accessories supplied : Remote Control 2 x R6 (UM3) Batteries Dimensions:

Including TV stand 615mm 791mm 248mm

TV set only 563mm 791mm 117mm

Net weight: 17,5kg [14kg] Specifications are subject to change without notice.

Weights and dimensions shown are approximate.

HD,VD:TTL Level 2-5V p-p (high impedance)

1366 x 768 XGA, 16:9 Visible Diagonal 800mm [660mm]

Height: Width: Depth: [525mm] [657mm] [216mm]

[473mm] [657mm] [117mm]]

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

A

Ω

General Guide Lines

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 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).

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 across 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 should be repaired and rechecked before it is returned to the customer.

Measuring network for TOUCH CURRENTS

COLD WATER PIPE (EARTH GROUND)

Fig. 2

CS=0.22μF

10k

U

1

0.022μF

V

U2 (V)

RS=1500

TO

PPLIANCES 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

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

R0=500

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 commerciall y av ailable 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 conductive 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 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).

IMPORTANT SAFETY NOTICE

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.

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)

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.4

6

Applicable signals

Component (Y, Pb, Pr), HDMI

Signal name COMPONENT 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 *

PC (D-sub 15P)

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

640 × 400 @70 Hz 640 × 480 @60 Hz 640 × 480 @75 Hz 800 × 600 @60 Hz 800 × 600 @75 Hz 800 × 600 @85 Hz 852 × 480 @60Hz 1,024 × 768 @60Hz 1,024 × 768 @70Hz 1,024 × 768 @75Hz 1,024 × 768 @85Hz 1,280 × 1,024 @60Hz 1,366 × 768 @60Hz Macintosh 13“ (640 × 480) Macintosh 16“ (832 × 624) Macintosh 21“ (1,152 × 870)

Note:

• Signals other than above may not be displayed properly.

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

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

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

with sufficient clarity.

31.47 70.07

31.47 59.94

37.50 75.00

37.88 60.32

46.88 75.00

53.67 85.06

31.44 59.89

48.36 60.00

56.48 70.07

60.02 75.03

68.68 85.00

63.98 60.02

48.39 60.04

35.00 66.67

49.73 74.55

68.68 75.06

7

Service Hints

How to remove the backcover

Remove the 18[16] fixing screws. (see Fig.5)

SCREWS

How to remove the Pedestal assembly

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

SCREWS

Fig.5

Fig.6

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

Fig.7

SCREWS

8

Chassis Board Layout

DG-BOARD

G-BOARD

Board Name Function

DG-Board Global Core, HDMI, IDTV Processor, D/A Converter,

AV Connector, Analog tuner, Digital tuner, AV Switch G-Board Side AV Connector P-Board Main Input, Power Supply, Main Switch V-Board Remote Receiver, LED IR, Cats

Location of Lead Wiring

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

P-BOARD

V-BOARD

TNR-TN

G51

TU3200

DG8

DG51

DG11

( 26” )

( 32” )

DG5-PAN

DG5

DG9

TU8301

DG1

P7-DG

P7

P6-INV

P6

P2

DG7

( Only for 32” )

P2/DG11-INV

( 32” )

( 26” )

G51-DG51

DG8-SP

V1

DG1-V1DG7-SP

9

Setting Inspection

Voltage Confirmation

Confirm the following voltages:

P board

Description Test point Position Normal mode Stand by mode Active stand by mode

Sub_5V TP861 P4, pin 12,13 5,0V +/- 0,25V Panel 5/12V TP857 P4, pin 22,23 12V +/- 1V 15V_Audio TP856 C3861 15,5V +/- 1V 9V_Header TP864 P4, pin 7,6 9V +/- 0,25V STBY_5V TP863 P4, pin 16 5,0V +/- 0,25V 5,0 +/- 0,25V 5,0V +/- 0,25V 24V_INV TP853 P2, pin1,2,3,4 24V +/- 1,5V 24V_INV TP852 C865 24V +/- 1,5V 24V +/- 1,5 24V +/- 1,5V

DG board

DTV9V TP5700 9V +/- 0,25V SUB5V TP5701 5V +/- 0,25V SUB3,3V TP5600 3,3V +/- 0,25V MAIN9V TP5706 9V +/- 0,25V STB5V TP5702 5V +/- 0,25V SOUND15V TPS15 15V +/- 0,25V

<1V <1V <1V <1V <1V <1V

<1V <1V

5,0V +/- 0,25V

9,0V +/- 0,25V

10

Self Check

A

f

A

f

A

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-26LMD70FA TX-26LMD71FA

TX-32LMD70FA TX-32LMD71FA TX-32LMD72FA

TX-26LMD70A

26

DV O.K.

VSW O.K.

DAV O.K.

SW O.K. GENX O.K. MEM1 O.K. MEM2 O.K. TUN1 O.K. D-TUN O.K. OFDM O.K.

32

DV O.K. VSW O.K.

DAV O.K.

SW O.K. GENX O.K. MEM1 O.K. MEM2 O.K. TUN1 O.K. D-TUN O.K. OFDM O.K.

26

DV O.K. VSW O.K.

DAV O.K.

SW O.K. GENX O.K. MEM1 O.K. MEM2 O.K. TUN1 O.K. D-TUN O.K. OFDM O.K.

Panasonic 2007LCD

Self Check Complete

PEAKS-SOFT 6.570 PEAKS-EEP 02.06.0035 GenX-SOFT 1.00.00 GenX-EEP 1.02.00 GenX-ROMCORR 1.01.00

Panasonic 2007LCD

Self Check Complete

PEAKS-SOFT 6.570 PEAKS-EEP 02.06.0034 GenX-SOFT 1.00.00 GenX-EEP 1.02.00 GenX-ROMCORR 1.01.00

Panasonic 2007LCD

Self Check Complete

PEAKS-SOFT PEAKS-EEP GenX-SOFT GenX-EEP GenX-ROMCORR

5.570

01.06.0039

1.00.00

1.02.00

1.01.00

26lmd70a.dat:000001

SUM OPTION 1

OPTION 2 OPTION 3 CHECK

MODEL ID

32lmd70a.dat:000002

SUM OPTION 1

OPTION 2 OPTION 3 CHECK

MODEL ID

26lmd70a.dat:000001

SUM OPTION 1

OPTION 2 OPTION 3 CHECK

MODEL ID

18c3

ea 7f

95 04

189f

0c ea

7f

75 04

03150000 00000002

189e

0c ea

7

75 04

03150000 00000004

2c

03130000 00000002

Panasonic 2007LCD

Self Check Complete

5.570

01.06.0038

1.00.00

1.02.00

1.01.00

32lmd70a.dat:000002

SUM OPTION 1

OPTION 2 OPTION 3

95

CHECK

04

MODEL ID

18c2

2c ea

7

0313000 0000004

TX-32LMD70A

32

DV O.K. VSW O.K.

DAV O.K.

SW O.K. GENX O.K. MEM1 O.K. MEM2 O.K. TUN1 O.K. D-TUN O.K. OFDM O.K.

PEAKS-SOFT PEAKS-EEP GenX-SOFT GenX-EEP GenX-ROMCORR

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

ADV IC4510 A/D CONVERTER DG-Board

VSW IC3001 VIDEO SWITCH DG-Board

ADAV IC2106 AUDIO PROCESSOR DG-Board

ASW IC3101 AUDIO SWITCH DG-Board

TUN1 TU3200 ANALOG TUNER DG-Board GENX IC1100 MICROPROCESSOR DG-Board MEM1 IC1101 EEPROM DG-Board MEM2 IC8601 EEPROM DG-Board

D-TUN TU8301 DIGITAL TUNER DG-Board

OFDM IC8301 COFDM DEMODULATOR DG-Board

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 DG BOARD

3SOS

4 DTV_9V DG BOARD

5 MAIN_9V DG BOARD

6 SUB_5V

7 MAIN_5V DG BOARD

Blinking timing Contents Check point

4 sec

Light

No Light

LCD PANEL

DG BOARD

P BOARD

DG BOARD

V BOARD

8 MAIN_3.3V DG BOARD

9 SOUND_SOS DG BOARD

10 HQ1L_SOS DG 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

Y

A

Y

y

SERVICE ADJUST WB-ADJ OPTION SRV-TOOL

Peaks SOFT 6.570 OPTION 1 0c Peaks EEP 02.06.0034 OPTION 2 ea LSI DATA 0.00.02 OPTION 3 7f GenX SOFT 1.00.00 Model ID 04 GenX EEP 1.02.00 03150000 GenX ROMCOR 1.01.00 00000004 HQ1L EEP -- Time 00000:00 Count 0000016

1

ADJUST DYNAMIC CONTRAST

MAX

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

ELLOW:AUTO ADJUST VOL:ADJUST OK :WRITE

1

000

2

ADJUST DYNAMIC

3

COLOR

1,2:MAIN SELECT

4

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

2

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.

DJUST DYNAMIC

3

3A

TINT

1,2:MAIN SELECT

4

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

00

ADJUST DYNAMIC

3

SUB-BRT

1,2:MAIN SELECT

4

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

808

DJUST DYNAMIC

3

BACKLIGHT

1,2:MAIN SELECT

4

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

276

DJUST DYNAMIC

H-POS

3

1,2:MAIN SELECT

4

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

DJUST DYNAMIC

0

H-AMP

3

1,2:MAIN SELECT

4

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

0

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

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

ROM

1

WB-ADJ DYNAMIC

FF

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

F2

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

WB-ADJ DYNAMIC

E4

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

48

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

WB-ADJ DYNAMIC

80

B-CENT

3

COLOR TEMP NORMAL

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

44

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

40

2

OPTION DYNAMIC STBY-SET

3

1,2:MAIN SELECT

4

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

OPTION DYNAMIC

00

Emergency

3

1,2:MAIN SELECT

4

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

OFF

OPTION DYNAMIC

/C Dela

3

1,2:MAIN SELECT

4

3,4:SUB 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

00001100

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

11101010

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

01111111

2

SRV-TOOL DYNAMIC

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

00

14

Option Bytes Description

OPTION1

0 ATP Speed Slow (1) / Fast (0) 1 TXT Ch On (1) / Off (0) 2 ID-1 On (1) / Off (0) 3 Macrovision Auto Evaluation On (1) / Off (0) 4 SRS Surround On (1) / Off (0) 5 Teletext Top Off (1) / On (0) 6 Not Use Not Use 7 Not Use Not Use

OPTION2

0 Not Use Not Use 1 A2 Stereo (5,5MHz) On (1) / Off (0) 2 A2 Stereo (6,0MHz) On (1) / Off (0) 3 A2 Stereo (6,5MHz) On (1) / Off (0) 4 Not Use Not Use 5 NICAM (5,5MHz) On (1) / Off (0) 6 NICAM (6,0MHz) On (1) / Off (0) 7 NICAM (6,5MHz) On (1) / Off (0)

OPTION3

0 NICAM priority (ASIA/M.E) On (1) / Off (0) 1 NICAM priority (K/UK) On (1) / Off (0) 2 NICAM priority (China) On (1) / Off (0) 3 NICAM priority (NZ/INDN) On (1) / Off (0) 4 NICAM priority (AUS) On (1) / Off (0) 5 NICAM priority (E.Europe) On (1) / Off (0) 6 NICAM priority (Special) On (1) / Off (0) 7 Not Use Not Use

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

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

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

32LMD70A 32LMD70FA

WHITE Normal WHITE Normal

x: 0,2860 ± 0,010 x: 0,2860 ± 0,010

y:0,3090 ± 0,010 y:0,2960 ± 0,010

GRAY Normal GRAY Normal

x: 0,2860 ± 0,010 x: 0,2860 ± 0,010 y:0,3120 ± 0,010 y:0,3020 ± 0,010

26LMD70A 26LMD70FA WHITE Normal WHITE Normal

x: 0,2860 ± 0,010 x: 0,2820 ± 0,010

y:0,3060 ± 0,010 y:0,2880 ± 0,010

GRAY Normal GRAY Normal

x: 0,2860 ± 0,010 x: 0,2820 ± 0,010 y:0,3090 ± 0,010 y:0,2880 ± 0,010

100% WHITE

50% GRAY

100% WHITE

50% GRAY

16

Wiring diagram

3003

17

P1

MAIN INPUT

P7

P-BOARD

P5

( 32” ONLY )

P6

P2

P4

SP_L

SP_R

SERVICE

KEY

HDMI 1 HDMI 2

DG7

DG8

DG32

DG33

DG9

JK4500

JK4501

CI SLOT

JK8401

PC INPUT

JK3001

DG-BOARD

SD SLOT

DG13

JK8801

DG5 DG11

AUDIO OUT

JK2002

AUDIO IN

JK3005

YPBPR

JK3004

DIGITAL

TUNER

TU8301

LCD PANEL

TUNER

TU3200

DG1

JK3002

AV1

K

AV2

DG51

G51

V1

V-BOARD

G-BOARD

JK3700

AV3

VIDEO & STEREO AUDIO BLOCK DIAGRAM

V

Y

X

V

A

,1P,2N,

18

JK3002

JK3003

YPBPR

AUDIO IN

AV1_V 20

AV1_VOUT 19

AV1_RED 15

AV1_GREEN 11

AV1_BLUE 7

AV1_L 6

AV1_LOUT 3

AV1_R 2

V1 21PIN SCART

AV1_ROUT 1

AV2_V 20

AV2_VOUT 19

AV2_C 15

AV2 GREEN 11

AV2 BLUE 7

AV2_L 6

AV2_LOUT 3

AV2_R 2

V2 21PIN SCART

AV2_ROUT 1

Y PB PR

JK3004

L R

JK3005

DG-BOARD (EXCHANGE UNIT)

YPBPR_Y YPBPR_PB

YPBPR_PR

PC_LIN PC_RIN

PC_LIN 10

PC_RIN 11

IC3101

AUDIO SWITCH

AV2_ROUT 26

AV2_R 15

AV2_LOUT 25

DTV_SL 39

DTV_SR 40

TUNER TU3200

21

10

AM

VIDEO_OUT

11

SIF_OUT

Q4516 Q4515

Q4514

Q4519 Q4517

99 Y_IN 78 PB/C 94 PR

80 RGB_CVBS 97 SOY

8 HDMI_BCLK 3 HDMI_SDIN 7 HDMI_LRCK

16,17,18,24-33, 38-48,51-53,55,58

IC4510

ADV7493BBSTZ

112,113,115

,116,118,

119,121,122

128,129,131

,132,134,

135,137,138

RXA_CN,CP,ON,OP,

RXB_CN,CP,ON,OP,

2P

1N

2P

1N

JK4501 HDMI 1

JK4500 HDMI 2

1 AV1_V 33 AV1_VO

79 AV1_RED 77 AV1_GREEN 81 AV1_BLUE

8,10 AV2_V 31 AV2_VO

12 AV2_C

53 AV2_RED/C 51 AV2_GREEN 55 AV2_BLUE

63 YPBPR_Y

IC3001

VIDEO SWITCH

(AN15876A)

MAIN_PB_OUT 39 MAIN_PR_OUT

MAIN_RGB_CVBS_OUT 44

MAIN_RF_CVBS

65 YPBPR_PB

67 YPBPR_PR

95 AV4_

PC_R 75 PC_G 71 PC_B

MAIN_Y_OUT 40

DVB_CVBS 20

97 AV4_

99 AV4_C

73

38

91

PC INPUT JK3001

3

1

2

Q3200

Q2017

JK8401

DATA

CI SLOT

SERIAL

BUS

IC8301

DEMODULATOR

TS

Q2016

IC2002

AUDIO

DAC

11

1

IC2006

2 3

10

4

24

34

OUT

35 BCLK 37 SDTI 36 LRCK

58 HPOUTR1

57 HPOUTL1

8

AINR2 77

SIF_IN1

AINL2 76

74 AUXOUTL2 75 AUXOUTR2 79 AV_R 78 AV_L

AV2_L 14

AV1_L 16

AV1_R 17

AV1_LOUT 23

AV1_ROUT 24

5

3

IC2012

HP

AMPLIFIER

1

7

72 AUXOUTL1

73 AUXOUTR1

DTV_BCLK 19

DTV_LRCK 18 DTV2_SDIN 23

HDMI_SDIN 22

HDMI_LRCK 26

HDMI_BCLK 27

IC2106

AUDIO

PROCESSOR

43 SQ_L-

42 SQ_L+

DTV_SDIN 24

45 SQ_R-

44 SQ_R+

B13

A13F14D15

IC8001-PeaksLite2

DVB_CVBS

D12

MN2WS0039A

VIDEO / AUDIO IF

I1P2-VI1P9,VI1P12-

I1P19,VI1P22-VI1P29

CLK,CLKOA,VSYNC,HS

2-A9,B1,B3-B10,C1,C2,

C4-C10,D1,D2,E2,E3

B25,B26,C25,C26,D25,D26 ,E25,E26,F25,F26,G25,G26

NC,ENB

TU8301

DIGITAL

TUNER

COFDM

R

L

JK3700

TV_L 41 TV_R 42

AV_R 33

5

7

571

G-BOARD

AV_L 32

3

1

3

6 AV4_L

7 AV4_R

11

13

15

13

11

15

AV4_R AV4_L AV4_V

AV4_Y

Y

AV4_C

C

L

HP_LOUT HP_ROUT

G51 DG51

R

HP_LOUT

HP_ROUT

761

IC2011

AUDIO

AMPLIFIER

2

Q2015

L

JK2002

AUDIO OUT

IC8002

16

18

AUDIO AMPLIFIER

43

36

Q2021

R

DG8

1

2

IC2301

3

8

31

DG7

6

IC8601

EEPROM

IC8554

16 MB FLASH

24

TE1P,TE1N,TD1P,TD1N,TCLK

1P,TCLK1N,

TC1P,TC1N,TB1P,TB1N,TA1P,

TA1N

1

3

DG5

1-15

DDR2-0

IC8003

DDR2-1

TO LCD PANEL

SP_R

SP_L

POWER SUPPLY BLOCK DIAGRAM

V

A

V

6

V

V V

19

DG-BOARD (EXCHANGE UNIT)

IC3001

IDEO

SWITCH

6, 25,

45, 69

IC3101

AUDIO

SWITCH

IC2013

REG

5

5V

8

IC2012

HP AMPLIFIER

DTV9V

5

MAIN9V

4

IC2301

AUDIO

AMPLIFIER

26, 27, 32, 35, 40, 41

1, 21, 22, 23, 44

IC2002

AUDIO DAC

7,8,

9,14

SOUND15V SOUND12V

SUB5

PROCESSOR

4, 53, 59, 68, 71

14, 21, 31, 40, 51

IC2011

AMPLIFIER

IC2106

AUDIO

12

29

8

3,3V AUD3,3V SUB3,3V

DVDD1,8V

DTV9V

3,3V

AUD3,3V

DVDD1,8V

SOUND12V

BT30V

IC2010

5Vout

IC2008

1Vout

IC2107

1Vout

IC2303

1Vout

Q2639

IC2610

REGULATOR

REG

Vin1

Vin7

Vin3

SUB5V

SUB3,3V

SOUND15V

DTV9V

SOUND_15V DTV9V SUB_5V

5V_STBY P12V

DG13

1-2 6-7

12-13

16

22-23

P4

1-2 6-7

12-13

16

22-23

1-2 6-7

12-13

16

22-23

P-BOARD

SOUND_15V

9V_HEADER

SUB_5V

5V_STBY

PANEL_5V/12V

15V_AUDIO SOUND_15V

PANEL_5V/12V

SUB_5V

9V_HEADER

5V_STBY

IC3850

2

IC3851

2

IC3852

2

IC3853

2

IC3854

1

REG

1

3

24V_IN

MAIN IN

21

F801

P1

24V_IN

SW 801

D854 D851

LF804

FILTER

Q851

PC801

Q852

PC802

LINE

T801

7

14

3 4

6 2

D801

-

IC802

MAIN PS CONTROL

11

15

10

19

20

~

+

~

T802

2 4

7

23

7

D818

P16, H21, P3, E22, E23, F21, C12, E14,

AA8, AA9, A25, A26, B24, C23, D7, D8,

D16, D17, D22, E21, F11, F12, F15, F20,

G4, H4, J6, K6, N6, P6, R4, T4, U6,

M17, U15, T17, N17, R17, T15, U16,

AB15, AC15, AD 15, AE1 5, AF15 , U14,

N10, P10, R10, R11, R12, R13, T10,

T11, T12, T13, U10, U11, U12, U13,

AA14, AB14, AC14, AD14, AE14, AF14

IC8001-PeaksLite

PROCESSOR

K23, K26, M21, M23, N24, P25, R21,

T25, U24, V22, W26, Y22, Y24, AA21,

AB19, AB22, AB 25, AC1 8, AC23 , AD17,

AD22, AD25, AE16, AE21, AF20, AF26

A1, E1, M9, J9, R1, J1, A9, C1, C3, C7,

A1, E1, M9, J9, R1, A9, C1, C3, C7, C9,

2, 13, 15, 16, 17, 18, 33, 45, 54

IC8301

LVDS DRIVER

C9, E9, G1, G3, G7, G9

IC8002

MEMORY

IC8003

MEMORY

7, 19, 21, 28

AC10, AC11

1, 21, 22, 23, 44

E9, G1, G3, G7, G9, J1

1,8V

1Vout

IC8302

REG

SUB3,3V

SUB1,2

SUB1,8V

SOUND12V

1,8V_DDRI/F

SUB3,3V

Vin8

IC8004

CLOCK

GENERATOR

5, 13, 15

IC8401

DATA BUFFER

IC8402

TS BUFFER

IC8404

TS BUFFER

IC8405

TS BUFFER

IC8406

TS BUFFER

IC8407

TS BUFFER

IC8408

TS BUFFER

IC8409

TS BUFFER

JK8401

CI SLOT

17, 18 51, 52

23,24

PC803

IC 851

PC804

PC1001

RM1001

REMOTE

D1001

IC801

STB3,3V

MAIN3,3V

P12V

STB3,3

SUB5V

STB5V

SUB5V

DVDDIO3,3V

D4525

D4527

VDD3,3V

TVDD3,3V

DVDD1,8V CVDD1,8V

MAIN3,3V

SUB5V

MAIN5V

MAIN5

SUB3,3V

SUB5V

SUB3,3V

SUB1,8V SUB1,2V

SUB5V

1

SUB3,3V

20

SUB3,3V

20

SUB3,3

20

5VCARD 5VCARD

SUB5V

SUB3,3V

SUB5V SUB3,3V

DTV9V

SUB5V

STB5V

TVDD3,3V AVDD3,3V

DVDDIO3,3V

CVDD1,8

DVDD1,8V

D5671 D5673

IC8403

REG

1Vin

Peaks-LITE2 POWER

3Vout

IC5601

REG

12Vout

IC5600

23Vout

REG

MAIN5V/

MAIN3,3V

Q5692 Q5693

Q5561

GenX4 POWER

IC5670

1Vin

REG

IC4506

REG

1Vout

IC4507

REG

5Vout

IC4508

REG

1Vout

IC4509

REG

1

Vout

Vout6

Vin

23

17

Vout5

Vin7

Vin1

Vin8

5VCARD

DTV9V

MAIN5V

MAIN3,3V

MAIN9V

STB3,3V

SUB5V

SUB3,3V

IC1100

MICROPROCESSOR

31, 50, 74, 78, 81, 85, 94, 108

IC8554

NOR FLASH

IC8621

DeMPX

IC8622

DeMPX

IC1101

EAROM

IC5671

RESET IC

IC5660

RESET IC

TU3200

29, 43, 53

5,9,16

20

18

8

2

1

2 1

STB3,3V

SUB3,3V

STB3,3V

STB5V

STB3,3V

DTV9

SUB3,3,

SUB5V

BT30V

IC4510

DV7493BBSTZ

68, 71, 101, 104, 109,

84, 88

111, 123, 127,

23, 57, 142

125, 141

15, 35, 50, 67

IC4504

EEPROM

IC4515

COMPARATOR

IC4500

EDID EPROM

IC4501

EDID EPROM

IC8601

EEPROM

139

8,3

8

5

8

4

1

27, 29 30, 31

DG1

4

1

3, 11

V-BOARD

4 22

1-4

STB3.3V

SUB5V

5V_STBY

PAN_5V/12

9V_HEADER

15V_AUDIO

24V_IN

P2

LCD PANEL

SUB5V

STB3,3V

STB3.3V STB3.3V

SUB_5

24V_IN

1-4

P

Q1004 Q1002

CONTROL BLOCK DIAGRAM

V

20

JK3002

JK3003

PC AUDIO IN

AV1_SLOW 8

AV1_QLINK 10

AV1_FB 16

V1 21PIN SCART

AV2_SLOW 8

AV2_QLINK 10

AV2_FB 16

V2 21PIN SCART

13

14

JK3001

R

JK2002

L

AUDIO OUT

PC_H_IN

PC_V_IN

MONITOROUT_MUTE

Q2002

Q2003

AV2_SLOW PC_V PC_H

FB AV2_FB AV1_FB PC_V_IN PC_H_IN AV1_SLOW SDA0B_5V SCL0B_5V VIDEO_STATUS

DAC_PD SCL0B_5V SDA0B_5V

AUDIO_MUTE

Q2102

Q2101

SOUND_SOS SDA2

SCL2 AUDIO_XRST

TV_SUB_ON_DELAY

SDA0B_5V SD2 SCL0B_5V SCL2

MUTE

Q2641

Q2640

4 41 42

46,74 48 49

IC3001

58

VIDEO SWITCH

60 80

83 84 85

22

IC3101

35

AUDIO SWITCH

36

15

PROCESSOR

16 17 50

IC2106

AUDIO

Q2635

DAC_PD

AMUTE

SOUND_SOS

AMUTE

SOS

MONITOROUT_MUTE

AUDIO_MUTE

SP_MUTE

HDMI_INT2

MONITOROUT_MUTE

AMUTE

24V_DET

SCL0B_5V SDA0B_5V RF_AFT1

Q2301

5

7

17

5

2

IC2002

AUDIO DAC

IC2301

AUDIO AMP

IC2012

HP AMP

AV1-2 OUT MUTE

Q2005

Q2004

Q2007

Q2006

MUTE SW

Q2034

D2028

D2031 D2032

Q2031

Q2039

Q2040

13 14

TUNER

20

D2637

DATA CONTROL

IC5660

RESET IC

MAIN5

MAIN3.3V

Q5691 Q5690

QLINK

D1102D1100

IC4510

ADV7493B

IC1100

MICROPROCESSOR

HDMI CEC

Q1107 Q1108

IC4504

EEPROM

IC4513

LEVEL

TRANSLATING

IC4514

LEVEL

TRANSLATING

IC8002

IC8003

IC8554

IC8004

CLK GEN

DDR2

FLASH

IC8601

EEPROM

IC1101

EEPROM

IC8001

PeaksLite2

IC4501

EEPROM

IC4500

EEPROM

SERIAL bus

LVDS bus

DG - BOARD

(EXCHANGE UNIT)

HDMI CEC

TU8301

DIG TUNER

IC8301

COFDM DEM

HDMI1

JK4501

HDMI2

JK4500

JK8401

CI SLOT

DATA

JK8801

SD CARD

Q2003

P - BOARD

PANEL_12V_ON

TUNER_SUB_ON

SUB_ON

TUNER_MAIN_ON

PANEL_12V_ON

DG13

P4

PANEL_12V_ON

19

TV_SUB_ON

18

TUNER_SUB_ON

Q3863

Q3870

Q3871

Q3855

TV_MAIN_ON

TUNER_MAIN_ON

DG1

V1

5 8 7

6 1

REMOTE

DG33

SERVICE

DG5

LCD PANEL

24V_DET

SOS

5

17

15

5

17

15

V - BOARD

RM1001

24V_DET

SOS

SUB_ON

24V_DET

SOS

SUB_ON

Q851

D3860

Q3867 Q3867

PC801

1

IC3855

Q3865

5

IC1101

REMOTE

PC1001

CATS

OUT

Q1004 Q1002

Q1010 Q1006

Q1007 Q1009

4

REMOTE

G_LED_ON

R_LED_ON

TIMER_REC_LED

AI_SENSOR

Parts Location

The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.

17

5

NOTE:

(UK)

15

(CONTINENTAL)

27 16

3

28

21

Panasonic TX-32LMD70A, TX-32LMD70FA, TX-32LMD71FA, TX-32LMD72FA, TX-26LMD70A 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