Panasonic sa pm 4 e service manual

Page 2

SA-PMAE I SA-PMAEB I SA-PMAEG

Notes :

1. Specifications are subject to change without notices. Mass and
dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum
analyzer.

n System : SC-PM4E-S Music center: SA-PM4E-S

n System : SC»PM4EB-S

n System : SC»PM4EG»S

Speaker: SB-PM4EG-M
Music center: SA-PM4EB-S
Speaker: SB-PM4EG»M
Music center: SA-PM4EG-S
Speaker: SB-PM4EG»M

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 sen/ice information by anyone else could result in serious injury or death.

CONTENTS

Page

1 Safety Precautions .................................................................. 3
1.1. General Guidelines ........................................................ 3

1.2. Caution for AC Cord ...................................................... 4

1.3. Before Repair and Adjustment ........................................ 5

1.4. Protection Circuitry --------------------------------------------------------- 5

1.5. Safety Part Information -------------------------------------------- 5

2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices

3 Precaution of Laser Diode

4 Handling Precautions For Traverse Deck-

5 Handling the Lead free Solder ------------------------------------------------ g
5.1. General description about Lead Free Solder (PbF) ---------- 9
6 Accessories -------------------------------------------------------------------------- 10

11
7.1. Main Unit Key Buttons Operation ---------------------------------- 11

7 Operation Procedures ................

7.2. Remote Control Key Buttons Operation ......................... 11
7.3. Disc Information ...................

8 Self diagnosis and special mode setting
8.1. Service Mode Summary Table

8.2. Service Mode Table ..................................................... 14
8.3. Error Code Table --------------------------------------------------------- 15
9 Assembling and Disassembling ........................................... 17
9.1. Caution ------------------------------------------------------------------------ 17
9.2. Disassembly flow chart ------------------------------------------------- 13
9.3. Main Parts Location Diagram ........................................ 1g
9.4. Disassembly of Side Panel L & R --------------------------------- 1g

9.5. Disassembly of Top Cabinet Unit
9.6. Disassembly of CD Mechanism
9.7. Disassembly of CD Eject P.C.B.

9.8. Disassembly of Front Panel ------------------------------------------ 21
9.9. Disassembly of Panel P.C.B. ........................................ 22
9.10. DiSassemny of HP / Music Port P.C.B. ......................... 23
911. Disassembly of Transformer P.C.B. ------------------------------ 23
9.12. Disassembly of Rear Panel .......................................... 24
9.13. Disassembly of Main P.C.B. ......................................... 25

9.14. Replacement of CD Lid and CD Open Spring
9.15. Replacement of CD Damper Gear-

9.16. Replacement of Traverse and CD Servo P.C.B.

Page

10 Service Positions .................................................................. 29
10.1. Checking and Repairing of Main P_C_B_ ........................ 29
10.2. Checking and Repairing of Transformer P.C.B. ............. 30

10.3. Checking and Repairing of CD Servo & CD Eject P.C.B.-81
10.4. Checking and Repairing of Panel and HP / Music Port

P.C.B. -------------------------------------------------------------------------- 32

11 Voltage Measurement & Waveform Chart ----------------------------- 33

11.1. Voltage Measurement -
11.2. Waveform Chart---

12 Wiring Connection Diagram

13 Block Diagram ---------------------------------------------------------------------- 39
13.1. CD SERVO I OPTICAL PICKUP UNIT .......................... 39
13.2. MAIN (1/2) I PANEL / TRANSFORMER ........................ 40
13.3. MAIN (2/2) / MUSIC PORT ........................................... 41

14 Notes Of Schematic Diagram ................................................ 43

15 Schematic Diagram --------------------------------------------------------------- 45

15.1. CD SERVO CIRCUIT
15.2. MAIN CIRCUIT
15.3. PANEL CIRCUIT

15.4. TRANSFORMER CIRCUIT ------------------------------------------- 51

15.5. HP/ MUSIC PORT CIRCUIT and CD EJECT CIRCUIT-52

16 Printed Circuit Board ------------------------------------------------------------ 53

16.1. CD SERVO P.C.B and TRANSFOMRER P.C.B ------------- 53

15.2. MAIN P.C.B. ---------------------------------------------------------------- 54

16.3. PANEL P.C.B., HP / MUSIC PORT P.C.B and CD EJECT
P.C.B ----------------

17 Illustration of lC's, Transistors and Diodes

18 Terminal Function of lC's-
18.1. lC7001 (MN6627954MA) IC SERVO
PROCESSOR/DIGITAL SIGNAL PROCESSOR/DIGITAL

FILTER D/A CONVERTER ........................................... 58

18.2. IC7002 (BA5948FPE2) IC 40H Drive ............................ 59
18.3. K3800 (MN101EF162XW) MICROPROCESSOR ........... 5g

19 Exploded Views ------------------------------------------------------------ 61

19.1. Cabinet Parts Location & Traverse Part Location ----------- 61

19.2. Packaging .........

20 Replacement Parts List-