Panasonic SC-PT760 Diagram

4 (2)

Panasonic Service and Technology Company

Technical Guide

Home Theater Products Repair

 

SA-

For 2008-9 models:

PT760

SA-PT660

SA-PT760 / 954 / 956

SA-PT960

SH-FX65, 67, FX85 (wireless)

 

Contents

 

Hints / Layout / Reset

4

 

Wireless Section

8

 

Power On Sequence

14

5 Disc Mechanism (CR-14)

o

Operation

15

o

Alignment

16

o

Troubleshooting

21

o

Laser replacement

25

Power Supply,

31

Protection Troubleshooting

(F61 or F76 Error Code)

34

No Audio (main unit)

39

Sample Model SC-PT760 Home Theater System

National Training

Herb Chin

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Panasonic Service and Technology Company

Produced by

Panasonic Services and Technology Company

National Training Department

Secaucus, NJ

Copyright © 2008 by Panasonic Services Company

All rights reserved. Unauthorized copying and distribution is a violation of law

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 potential 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 dealt with in this service information by anyone else could result in serious injury or death.

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Table of Contents

Electronics –Layouts / Hints

 

Hints – p/n, New codes, Tests, Reset

4

Layout w test points and PS voltages

5

Wireless

 

SH-FX65/66 Rear Receiver Setup

8

Wireless Troubleshooting Plan

9

Testing & Paring Trans & Rec

10

Transmitter / Receiver Repair Info

11

Power ON

 

Power On Sequence

14

Mechanism – stacked 5 Disc model CR-14

 

Operation

15

Alignment

16

Troubleshooting

21

Laser Replacement (removal & install)

25

Power Supply

 

PS Block with isolation strategy

31

PS Circuit with ref voltages

32

Protection

 

Protection Concept (F61 & F76 codes)

34

Protection Circuitry

35

Protection Repair Procedure

36

Audio

 

Concept

39

Speaker Output Waveform

40

Sample Problems & Repair Methods 41

Slide # 3

Home Theater Products Repair

center

SW

SA-PT660

 

 

 

T

R

SW SA-PT760

center

T

SA-PT960

 

 

R

 

 

SW

 

 

 

 

 

center

 

 

 

 

Outline

 

Models:

 

 

 

Wireless

 

SA-PT660

 

Mech

 

SA-PT760

 

Pwr Supply

 

SA-PT960

 

Protection

 

SA-PT1060

 

Audio

 

SH-FX67, 85

 

 

 

 

Hints I Common P/N, II Missing error codes, III Unplugged cable symptoms, IV Reset

I Popular Part Numbers

Description

P/N

Note

 

 

 

Remote SA-PT760,

N2QAyb 000 214

 

PT960

 

 

Remote SA-PT660

N2QAyb 000 210

 

 

 

 

Fan

L6FAJCCH 0007

 

 

 

 

Output ICs

C1bA 00000 487

 

 

 

 

Transmit Card

Repx 0644b

 

 

 

 

Receiver card

Repx 0645b

 

 

 

 

CR-14 Mechanism

RD-DDC026-S

Exch

 

 

 

Traverse / Laser Assem

RR-DDtx002-V

 

 

 

 

IV Reset after DVD Board replacement

1.After replacing the DVD board Play recovery disc

(p/n = RFKZD 03r005) containing firmware + update. Select yes or no for update.

2.Reset –

1.Select DVD mode & wait for “1 No Disc” display.

2.Press >10 (remote) and (panel). = Stop.

3.Until the display = “INIT”.

4.While still pressing STOP , also press the remote OK button until the word “RESET” appears.

5.Power off the unit and unplug for 1 min.

Slide # 4

II Error Codes not in the Service Manual:

Changer Error – appears when a button is pressed and the mechanism is not responding. Go to the mechanism troubleshooting of this book to determine if it is mechanical.

Sum Error – Incorrect communications with DVD board micro. Transport is dead, DVD can not be selected. Replace 50 pin ribbon

cable or DVD bd.

F897 – Play the recovery disc and reset the unit. (see IV at left)

 

III Troubleshooting by cable Removal

 

 

 

Cable

Display

Symptom

 

 

 

Removed

 

 

 

 

 

 

 

 

 

 

1

Large 50 pin

Hello, Aux

Fan on, No AM/FM mode,

 

 

DVD cable

(last input),

No audio. Unit remains on.

 

 

CN2001 off

Close,

Vol level # changes w knob

 

 

“change

 

 

 

but no audio.

 

 

 

 

error”

 

 

 

 

2

2 rear mech

Hello, Din.

Fan on, Mech motor buzzes,

 

 

cables off

 

display skips DVD when

 

 

(fp8531,fp8251)

 

press Sel button, No audio.

 

 

 

 

 

 

 

3

Main Bd.

None

CN2007 is only for the

 

 

 

CN2007 off

 

display. No display. Unit

 

 

 

 

 

works OK otherwise.

 

 

 

 

 

 

 

4

PS Bd /

Hello,

Fan on, locked on last input

 

 

mech

Change,

mode used but that audio

 

 

CN2011 off

Open.

works fine with volume

 

 

 

control.

 

 

 

 

 

 

 

 

 

 

Outline

 

Models:

 

 

 

 

 

 

 

Wireless

 

SA-PT660

 

 

 

Mech

 

SA-PT760

 

 

 

Pwr Supply

 

SA-PT960

 

 

 

Protection

 

SA-PT1060

 

 

 

Audio

 

SH-FX67, 85

 

 

 

 

 

 

 

Panasonic SC-PT760 Diagram

PT760 Layout 1 – Top Level

Slide # 5

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

PT760 Layout – Bottom Level

Slide # 6

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Table of Contents

Electronics –Layouts / Hints

 

Hints – p/n, New codes, Tests, Reset

4

Layout w test points and PS voltages

5

Wireless

 

SH-FX65/66 Rear Receiver Setup

8

Wireless Troubleshooting Plan

9

Testing & Paring Trans & Rec

10

Transmitter / Receiver Repair Info

11

Power ON

 

Power On Sequence

14

Mechanism – stacked 5 Disc model CR-14

 

Operation

15

Alignment

16

Troubleshooting

21

Laser Replacement (removal & install)

25

Power Supply

 

PS Block with isolation strategy

31

PS Circuit with ref voltages

32

Protection

 

Protection Concept (F61 & F76 codes)

34

Protection Circuitry

35

Protection Repair Procedure

36

Audio

 

Concept

39

Speaker Output Waveform

40

Sample Problems & Repair Methods 41

Slide # 7

Home Theater Products Repair

center

SW

SA-PT660

 

 

 

T

R

SW SA-PT760

center

T

SA-PT960

 

 

R

 

 

SW

 

 

 

 

 

center

 

 

 

 

Outline

 

Models:

 

 

 

Wireless

 

SA-PT660

 

Mech

 

SA-PT760

 

Pwr Supply

 

SA-PT960

 

Protection

 

SA-PT1060

 

Audio

 

SH-FX67, 85

 

 

 

 

Home Theater Wireless Products

Transmitter card – REPX 0644b

Receiver card - REPX 0645b

Slide # 8

Panasonic Model

SA-PT660 – no wireless spks.

(optional FX67 or / & FX85) SA-PT760 – wireless rear spks. SA-PT960 – wireless rear spks + more pwr

Need a manual for the wireless portions of the above units? Try a model below.

SH-FX65 – takes spk wires. SH-FX67 – takes spk plug.

Wireless rear receiver

Optional for the ‘PT660

SH-FX65/67 max range = 49’

ID set

(back)

button

 

 

Receiver

 

Transmitter card

 

Outline

 

Models:

 

 

 

 

Wireless

 

SA-PT660

 

Mech

 

SA-PT760

 

Pwr Supply

 

SA-PT960

 

Protection

 

SA-PT1060

 

Audio

 

SH-FX67, 85

 

 

 

 

SA-PT760 Wireless Troubleshooting Plan

Wireless rear does not work – W1 or W2 display icons do blink at power on.

1.RF connection has not been made. Go to slide 6 to pair the transmitter and receiver. Steps 1-6.

2.Go to slide 8 to troubleshoot the receiver. Make sure there is standby voltage input the receiver and the pair button is working (pin 9 grounds when the button is pressed.

3.Go to slide 7 to check the transmitter card Sw +5V voltage at the main board (CN2003) or at the card socket itself CN6301).

Wireless rear does not work – W1 or W2 display icons do NOT blink at power on.

1.The RF connection is OK. No audio is the problem. Replace the transmitter card if hot (damaged when plugged in while the unit was powered on).

2.Go to slide 6 and follow steps 7 to turn on “S Music” mode (surround music). This makes the rear surround speaker sound the same as main L & R.

3.Input an audio source (play some music).

4.Disconnect the speakers and turn the volume control to max (level number 50 is displayed).

5.Go to slide 8. Check for audio at the receiver card CN1100/pins 2 & 4.

6.If there was no audio present at CN1100 (receiver), Go to slide 7. Check for audio at the transmitter socket CN6301/pins 10 & 12.

Slide # 9

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Wireless Information – RF Pairing / Matching T & R

RF Pairing

1.Proximity – Bring the wireless receiver to the transmitter.

2.Power ON – Plug the transmitter card in. Turn everything on and press the selector button for DVD mode. (Do not plug the card in with the unit on. A damaged card will get hot.)

3.Setup – While the W1 / W2 icon is blinking in the unit’s display, hold down the front panel FF button and the remote’s “3” Button.

4.Indicators – a) W1 / W2 will blink on the main unit’s display if the transmitter card is inserted. b) “P” icon will be displayed when the pairing process is started.

5.Mating – While the “P” is present, press the rear receiver recessed “ID Set” button.

6.Indicator – The W1 / W2 will stop blinking proving an RF match has been made.

7.Audio Test – Repeatedly press the remote’s SOUND button until the

panel displays “S.Music”. Then press the arrow button to turn ON “S. Music”. The rear speakers will have the same music as the front L & R.

8.W1 / W2 still blinking? – Use the troubleshooting info in the next pages.

Slide # 10

2. Transmitter card

5. ID Set button

ID

Set

7.Rear Audio Test

1.H. Bass

2.R.C. FCS

3.SRD Enh(ance)

4.S.Music

3. Press panel FF & 3 buttons

On

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Wireless - Troubleshooting Information ½ - Transmitter part

Use this diagram to:

Prove that the T card is recognized (CN2003/pin 11).

Power is getting to the T card (CN2003/pin 9).

Audio is getting to the T card (CN2003/ pin 2-8).

Notes:

1.Measure the voltages at the CN2003 main board with the Transmitter card / Bd. plugged in.

2.Channel 2 audio is present with a surround sound DVD or if the S Music is turned ON. See the previous slide, step 7 for access S Music.

3.Channel 1 audio is only present when its 2nd room accessory transmitter card is plugged in. Otherwise channel 1 is muted.

4.Data is only present when the T card is in.

Slide # 11

When the T card is inserted, the micro blinks a W1 icon

Transmitter card – REPX 0644b

Receiver card - REPX 0645b

Rear of Main Unit

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Wireless - Troubleshooting Information 2/2 – Receiver part

Use this diagram to:

Receiver card is getting power (CN1100/pin 5).

Receiver card is outputting Audio (CN1100/ pin 2).

Receiver card is not muting the audio (CN1100/ pin 10).

Transmitter card – REPX 0644b

Receiver card - REPX 0645b

SH-FX67 receiver / amp

Slide # 12

Outline

Models:

Wireless

SA-PT660

Mech

SA-PT760

Pwr Supply

SA-PT960

Protection

SA-PT1060

Audio

SH-FX67, 85

 

 

Table of Contents

Electronics –Layouts / Hints

 

Hints – p/n, New codes, Tests, Reset

4

Layout w test points and PS voltages

5

Wireless

 

SH-FX65/66 Rear Receiver Setup

8

Wireless Troubleshooting Plan

9

Testing & Paring Trans & Rec

10

Transmitter / Receiver Repair Info

11

Power ON

 

Power On Sequence

14

Mechanism – stacked 5 Disc model CR-14

 

Operation

15

Alignment

16

Troubleshooting

21

Laser Replacement (removal & install)

25

Power Supply

 

PS Block with isolation strategy

31

PS Circuit with ref voltages

32

Protection

 

Protection Concept (F61 & F76 codes)

34

Protection Circuitry

35

Protection Repair Procedure

36

Audio

 

Concept

39

Speaker Output Waveform

40

Sample Problems & Repair Methods 41

Slide # 13

Home Theater Products Repair

center

SW

SA-PT660

 

 

 

T

R

SW SA-PT760

center

T

SA-PT960

 

 

R

 

 

SW

 

 

 

 

 

center

 

 

 

 

Outline

 

Models:

 

 

 

Wireless

 

SA-PT660

 

Mech

 

SA-PT760

 

Pwr Supply

 

SA-PT960

 

Protection

 

SA-PT1060

 

Audio

 

SH-FX67, 85

 

 

 

 

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