Panasonic sa pt 70 service manual

Page 1

PSGOQOQOO1CE

Service Manual

DVD Home Theater Sound System
Model No. SA-PT7OEB

firm-mm

VIDEO

Remote
Control

SB-HW70

SB-HS7O SB-HC70 SB-HS7O

SB-HF7O

SA-PT70

SA-PT70EG
SA-PT70EP

Product Color: (K)...Black Type

(S)...Silver Type (EG/EP)

Note: Please refer to the original service manual for:

0 DVD Mechanism Unit (DLSGE), Order No. PSGOQOSOOZAE
0 Speaker system SB-PT70EG-K/S, Order No. PSG0909003CE

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 pans 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
PAGE

1 Safety Precautions ----------------------------------------------- 3
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 -------------------------------------------
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

PAGE

2.4. Handling Precautions for Traverse Unit -------------- 9

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 ControlTM»-
5.5. Disc Information ----------------------------------

6 Self-Diagnosis and Special Mode Setting -------------- 20

© Panasonic Corporation 2009. All rights reserved.
Unauthorized copying and distribution is a violation
of law.

Page 2

6.1. Cold-Start ------------
6.2. Service Mode Table--
6.3. Self-Diagnosis 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.) ------------------------------ 38
7.3. Basic Troubleshooting Guide for HDMI AV
output ------------------------------------------

8 Disassembly and Assembly Instructions-
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 ---------------------------- 45
8.6. Disassembly of DVD Mechanism Unit
(DLSeE) -- 45

8.7. Disassembly of DVD Module P.C.B.
8.8. Disassembly of SMPS P.C.B. --------
8.9. Replacement of Switching Regulator lC
(I05701) ---------------------------------------------------- 49
8.10. Replacement of Diode (D5802) ----- --49
8.11. Disassembly of Main/D-Amp P.C.B. --50
8.12. Replacement of Digital Amplifier IC (IC403/
|C404/IC405) ---------------------------------------------- 52
8.13. Disassembly of Front Panel Assembly -- --53
8.14. Disassembly of FL P.C.B. ----------------
8.15. Disassembly of Volume Button P.C.B.
8.16. Disassembly of Power Button P.C.B
8.17. Replacement of DVD Lid Assembly--- 57
9 Assembling and Disassembling of Traverse Unit----60
9.1. Disassembly of Traverse Unit ------------------------- 60
9.2. Assembly of Traverse Unit- 61
10 Service Position --------------------- --62
10.1. Checking & Repairing Main/D-Amp 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 P.C.B. ----- 63
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. FL P.C.B. -
11.9. SMPS P.C.B
11.10. Scart P.C.B.---
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/Vide0)

--4s

62

14.3. DVD(UP-CON)
14.4. System Control-u
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/D»Amp Circuit
17.3. FL, Volume Button & Power Button Circui
17.4. Scart Circuit --------------------------------------
17.5. SMPS Circuit----
18 Printed Circuit Board
18.1. DVD Module P.C.B.
18.2. Main/D»Amp P.C.B.-
18.3. FL, Volume Button, Power Button & Scar!
P.C.B. ---------- 111
18.4. SMPS P.C.B.- 112
19 Terminal Function of le--
19.1. |C200 (RFKWMPT70EGK): IC

MICROPROCESSOR ---------------------- 113

19.2. |C901(COHBBOOOOOS7): IC FL Driver-- 113

20 Exploded View and Replacement Parts List ---------- 115
20.1. Exploded View and Mechanical Replacement

Part List -------------------------------- 115

20.2. Electrical Replacement Part List- 119