Panasonic sa pt 90 eb service manual

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PSG10050500E

Service Manual

DVD Home Theater Sound System
Model No. SA-PT90EB

[flu-fig HDITII VIE

vmao" Link SA'PTQOEG
2:21;): Product Color: (K)...Black Type
(S)...Silver Type (EG only)
53- I-IIC70
SB- H870 SB- H870 SB'HWZZ
SB-HF70

was:

SA-PT90

Note: Please refer to the original service manual for:
0 DVD Mechanism Unit (DLSGE), Order No. PSG0909002AE
0 Speaker system SB-PT90EB-K/S, Order No. PSG1005051 CE

A 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.

IMPORTANT SAFETY NOTICE

There are special components used in this equipment which are important for safety. These parts are marked by A in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturers specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.

TABLE OF CONTENTS

1 Safety Precautions ----------------- 2.4. Handling Precautions for Traverse Unit -

1.1. GENERAL GUIDELINES----

1.2. Before Repair and Adjustment

1.3. Protection Circuitry ---------------

1.4. Safety Parts Information --------------

1.5. Caution for AC Cord (For EB only)-

2 Warning -------------------------------------------------------------- 6
2.1. Prevention of Electrostatic Discharge (ESD)

to Electrostatic Sensitive (ES) Devices

2.2. Precaution of Laser Diode -----------------

2.3. Service caution based on Legal restrictions »- 8

Panasonic

3 Service Navigation
3.1. Service Information
4 Specifications --------------
5 Location of Controls and Components -------
5.1. Remote Control Key Button Operations-
5.2. Main Unit Key Button Operations-
5.3. Speaker Connection ------------------
5.4. Using the VIERA Link HDAVI ControITM--
5.5. Disc Information -----------------------------
6 Self-Diagnostic and Special Mode Setting --

© Panasonic Corporation 2010. All rights reserved.
Unauthorized copying and distribution is a violation
of law.

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6.1. Cold-Start ------------
6.2. Service Mode Table--
6.3. Self-Diagnostic Mode --------------------------
6.4. DVD Self Diagnostic Function Error Code
6.5. Sales Demonstration Lock Function --
6.6. Firmware Version-Up Information ------
7 Troubleshooting Guide ----------------------------------
7.1. Troubleshooting Guide for F61 and/or F76 --
7.2. Basic Troubleshooting Guide for Traverse

Unit (DVD Module P.C.B.) .............................. 39
7.3. Basic Troubleshooting Guide for HDM| AV
output ------------------------------------------ ___40

8 Disassembly and Assembly Instructions- --42
8.1. Disassembly Flow Chart ---------------------
8.2. Main Components and P.C.B. Locations
8.3. Disassembly of Top Cabinet--

8.4. Disassembly of Scart P.C.B.--

8.5. Disassembly of Rear Panel ---------------------------- 46
8.6. Disassembly of DVD Mechanism Unit
(DLSSE) -- 47

8.7. Disassembly of DVD Module P.C.B.

8.8. Disassembly of SMPS P.C.B. --------

8.9. Replacement of Switching Regulator lC
(IC5701) ---------------------------------------------------- 50

49

8.10. Replacement of Diode (D5802) -- ---51
8.11. Disassembly of Main P.C.B. ----- --52
8.12. Replacement of Digital Amplifier IC (IC403/
IC404/IC405) ---------------------------------------------- 53
8.13. Disassembly of Front Panel Assembly ------------- 55
8.14. Disassembly of FL P.C.B. & Power Button
P.C.B.--- ---56

8.15. Replacement of DVD Lid Assembly
9 Assembling and Disassembling of Traverse Un
9.1. Disassembly of Traverse Unit
9.2. Assembly of Traverse Unit----
10 Service Position ------------------------------------------------- 61

10.1. Checking & Repairing Main P.C.B. & Scart
P.C.B. ------------------------------------------
10.2. Checking & Repairing of SMPS P.C.B
10.3. Checking & Repairing of FL P.C.B. -
10.4. Checking & Repairing of DVD Module PCB
11 Voltage & Waveform Chart -----------------------------
11.1. DVD Module P.C.B. (1/4
11.2. DVD Module P.C.B. (2/4
11.3. DVD Module P.C.B. (3/4

(

11.4. DVD Module P.C.B. 4/4
11.5. Main P.C.B. (1/3) --
11.6. Main P.C.B. (2/3) --
11.7. Main P.C.B. (3/3) --
11.8.
11.9.
11.10.
11.11. Waveform Table (1/3) -
11.12. Waveform Table (2/3)
11.13. Waveform Table (3/3)
12 Illustration of ICs, Transistor and Diode --
13 Overall Simplified Block Diagram -----------
14 Block Diagram
14.1. DVD(Servo)-
14.2. DVD(Audio/Video)
14.3. DVD(UP-CON) -----

)___
)___
)___
)___

14.4. System Control-
14.5. Analog Audio----
14.6. Digital Audio--
14.7. Analog Video-
14.8. Power Supply --------------
15 Wiring Connection Diagram -
16 Schematic Diagram Notes-
17 Schematic Diagram ----------
17.1. DVD Module Circuit
17.2. Main Circuit -----------
17.3. FL & Power Button Circuit-

18 Printed Circuit Board -----
18.1. DVD Module P.C.B.
18.2. Main P.C.B. -
18.3. FL, Power Button & Scart P.C.B.
18.4. SMPS P.C.B. ------------

19 Terminal Function of le--

19.1. |C200 (RFKWMPTQOEB):
MICROPROCESSOR ----------------------
19.2. ICQO1(COHBBOOOOOS7): IC FL Driver--

20 Exploded View and Replacement Parts List ---------- 111
20.1. Exploded View and Mechanical Replacement
Part List -------------------------------- 111

20.2. Electrical Replacement Part List- 115