Panasonic TH 42PW5, TH 42PWD5, TH 37PW5, TH 37PWD5 Diagram

Service Manual

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ORDER NO. ITD0207019C0

D10 Canada: B07

Wide Plasma Display

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5

GP5D Chassis

Specifications

Power Source: AC120V 50/60Hz (UY/UZ version)

Power Consumption: 225 W (37 inch), 295 W (42 inch)

2.4 W (stand-by condition)

0.9 W (Power off condition)

Plasma Display panel: Drive method AC type

16:9 aspect ratio

Contrast Ratio 3000:1 Screen size: 818 mm (W)× 461 mm (H)

No. of pixels 408,960 (852 (W)× 480 (H))

Operating condition: Temperature 34°F - 104°F (0°C - 40°C) Humidity 20% - 80%

Horizontal scanning frequency 15.6 - 110kHz Vertical scanning frequency 48 - 120Hz

Connection terminals: AV

Video in 1.0 Vp-p (75-ohm) S-VIDEO IN/ (MINI DIN 4PIN) Y: 1 Vp-p (75-ohm), C: 0.286 Vp-p (75-ohm) AUDIO IN/ (RCA PIN JACK× 2) 0.5 Vrms (high impedance)

COMPONENT/RGB

Y/G 1.0 Vp-p/composite (75-ohm)

0.7 Vp-p/non-composite (75-ohm) PB/B 0.7 Vp-p (75-ohm) PR/R 0.7 Vp-p (75-ohm) HD 1.0 - 5.0 Vp-p (high impedance) VD 1.0 - 5.0 Vp-p (high impedance) AUDIO IN

(RCA PIN JACK×2)

(HIGH-DENSITY D-SUB15PIN)

HD, VD/1.0 - 5.0 Vp-p (high impedance) AUDIO IN (M3 JACK) 0.5Vrms (high impedance)

SERIAL

EXTERNAL CONTROL TERMINAL (D-SUB9PIN)

SPEAKERS (External speakers) (6Ω) 16W [8W+8W] (10% THD) Dimensions (W×H×D): 920 mm× 550 mm 89 mm) (37 inch)

Weight (Mass) approx. 24.0 kg net (main unit only) (37 inch)

AC220-240V 50/60Hz (Except UY/UZ version model)

(UY/UZ version)

2.8 W (stand-by condition) (Except UY/UZ version model)

(UY/UZ version model)

1.5 W (Power off condition) (Except UY/UZ version model)

939 mm (diagonal) (37 inch) 920 mm (W)× 518 mm (H) 1,056 mm (diagonal) (42 inch)

[2,556× 480 dots]

0.5 Vrms (high impedance)

R,G,B/0.7 Vp-p (75-ohm)

RS-232C COMPATIBLE

1,020 mm× 610 mm 89 mm) (42 inch)

approx. 28.2 kg net (with speakers) (37 inch) approx. 28.0 kg net (main unit only) (42 inch) approx. 32.2 kg net (with speakers) (42inch)

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9 Service mode

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9.1 CAT (computer Aided Test) mode

9.1.1 IIC mode

9.1.2 CD mode

9.1.3 SD mode

9.2 IIC mode structure (following items value is sample data.)

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9.1 CAT (computer Aided Test) mode

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To exit the CAT mode , access the ID mode and switch off the main power.

9.1.1 IIC mode

9.1.2 CD mode

9.1.3 SD mode

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9.1.1 IIC mode

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Select the IIC mode by Up/Down button on the remote control at the front page of CAT mode then press the Action button on the remote control.

Subject and item are mentioned on page 14.

To exit the IIC mode, press the R button on the remote control.

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9.1.2 CD mode

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Select the CD mode by Up/Down button on the remote control at the front page of CAT mode then press the Mute button on the remote control more than 5 sec.

Micom software version (IC9354), this version can be upgrade by

1.replace of new version IC

2.Loading the new version software from loader tool, TZSC07036.

Memory data change

To exit the CD mode, press the R button on the remote control.

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9.1.3 SD mode

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Select the SD mode by Up/Down button on the remote control at the front page of CAT mode then press the Action button on the remote control.

To exit the SD mode, press the R button on the remote control.

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9.2 IIC mode structure (following items value is

sample data.)

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11 Trouble shooting guide

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11.1 Self Check

11.1.1 Display Indication

11.1.2 Power LED Blinking timing chart

11.2 No Power

11.3 No Picture

11.4 Local screen failure

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11.1 Self Check

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11.1.1 Display Indication

11.1.2 Power LED Blinking timing chart

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11.1.1 Display Indication

button on the customer controls at the

Note:

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1.Self-check is used to automatically check the bus line controlled circuit of the Plasma display.

2.To get into the Self-check mode, press the volume down front of the set, at the same time pressing the OFF-TIMER button on the remote control, and the screen will show :-

If the CCU ports have been checked and found to be incorrect

Or not located then " - - " will appear in place of " OK "

In case of disconnected of H/HY/HZ “IC3699 - -” is displayed.

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11.1.2 Power LED Blinking timing chart

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1.Subject

Information of LED Flashing timing chart.

2.Contents

When an 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 the number of blinkes of the Power LED on the front panel of the unit.

3.Remarks

Above Fan function is operated during the fans are installed.

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11.2 No Power

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[First check point]

There are following 3 states of No Power indication by power LED.

1.No lit

2.Green is lit then turns red blinking a few seconds later.

3.Only red is lit.

1.No lit

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11.3 No Picture

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11.4 Local screen failure

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Plasma display may have local area failure on the screen. Fig - 1 is the possible defect P.C.B. for each local area.

Fig - 1

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12 Option Setting

Note :

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Hidden Option Menu for GP5D series

GP5D chassis series have special function and operation setting facility called Option Menu. This Option Menu is useful for special function required customers. This should be set at the installation stage. The end user could not set or change these becauseof hidden On screen menu.

Option menus default

setting

Wobbling Off Wobbling operation On/Off.

The outline of burnt image will be blurred by intermittent image sift. Off-timer function Enable Off-timer operation Enable/Disable. On Screen display On Enable/Disable to display input mode indication after power on and no signal indication. Initial Input Off Sets the initial input mode when the power is turned on . Allow input mode selection while power is on. Initial VOL. level Off Sets the initial volume level when the power is turned on. Allow Volume control while power is on. Maximum VOL.

Level INPUT lock Off Fixes the input mode to AV, Component/RGB or PC. Can not change input mode by input selection key. Button lock Off Enable/Disable front operation buttons (Input and/or volume up/down) Studio W/B Off Set warm mode color temperature to 3,200 Kelvin. Remocon User Level Off Remote key invalidation.

Off Sets the maximum volume to desired level. Volume cannot exceed this level.

Off : Valid key is all key of remote.

User1 : Valid key are only Stand-by (ON/OFF), Input, Status, Surround, Sound mute On/Off, and volume

adjustment.

User2: Valid key is only Stand-by (ON/OFF).

User3 : All keys are null and void

Contents

ID Select 0 to 100 Set ID number from 001 to 100. Remote ID Off Remote ID function On/Off.

(While the Remote ID on, standard remote function can not control the unit.) Serial Off Serial ID function On/Off

How to set Remocon User Level and Remote ID off

1.Access service mode (CAT-mode) and press SET UP key on remote.

2.Accsess Hidden option menu.

3.Change Remocon User Level and/ or Remote ID set to Off.

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18 Schematic Diagram for printing with A4

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14 Block and Schematic Diagrams

14.1. Schematic Diagram Notes

Important Safety Notice

Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacture's specified parts.

Notes:

1. Resistor All resistors are cabon 1/4W resistor, unless marked as follows: Unit of resistance is OHM [W] (K=1,000, M=1,000,000).

: Nonflammable : Metal Oxide : Solid : Metal Film : Wire Wound : Fuse:

2. Capacitor All capacitors are ceramic 50V capacitor, unless marked as follows: Unit of capacitance is mF, unless otherwise noted.

: Temperature Compensation : Electrolytic : Polyester : Bipolar

M m T

: Metalized Polyester : Dipped Tantalum : Polypropylene : Z-Type

3. Coil Unit of inductance is mF, unless otherwise noted.

4. Test Point

: Test Point position

5. Earth Symbol

: Chassis Earth (Cold) : Line Earth (Hot)

6. Voltage Measurement Voltage is measured by a DC voltmeter. Conditions of the measurement are the following:

Power Source ...................................................AC 120V, 50/60Hz

Receiving Signal ............................................... Colour Bar signal (RF)

All customer's controls ...................................... Maximum positions

7. Number in red circle indicates waveform nember. (See waveform pattern table.)

8. When arrow mark ( ) is found, connection is easily found from the direction of arrow

(UY/UZ VERSION model)/ AC220-240V, 50/60Hz (Except UY/UZ VERSION)

9. Indicates the major signal flow. : Video Audio

10. This schematic diagram is the latest at the time of printing and subject to change without notice.

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Schematic Diagram Notes

Remarks:

1. The Power Circuit contains a circuit area which uses a separate power supply to isolate the earth connection. The circuit is defined by HOT and COLD indications in the schematic diagram. Take the follwing precautions. All circuits, except the Power Circuit, are cold. Precautions

a. Do not touch the hot part or the hot and cold parts at the same time or you may

be shocked.

b. Do not short- circuit the hot and cold circuits or a fuse may blow and parts may

break.

c. Do not connect an instrument, such as an oscilloscope, to the hot and cold

circuits simultaneously or a fuse may blow.

Connect the earth of instruments to the earth connection of the circuit being

measured.

d. Make sure to disconnect the power plug before removing the chassis.

2. Following diodes are interchangeable.

MA150- MA162 (Replacement part)

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Schematic Diagram Notes

14.2. Main Block Diagram

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Main Block Diagram TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Main Block Diagram

14.3. Power (UY/UZ Version) Block Diagram

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Pow er(UY/UZ V ersion)Bloc k Diagram

14.4. F-Board Schematic Diagram

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 F-Board Schematic Diagram

14.5. P-Board (UY/UZ Version) Schematic Diagram

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 P-Board(UY/UZ V ersion)Schematic Diagram

14.6. Power (Except UY/UZ Version) Block Diagram

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Power(Except UY/UZ Version)Block Diagram TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 Power(Except UY/UZ Version)Block Diagram

14.7. P-Board (1 of 2) (Except UY/UZ Version) Schematic Diagram

TH-42PW5/TH-42PWD5/TH-37PW5/TH-37PWD5 P-Board(1of2)(Except UY/UZ Version)Schematic Diagram

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