Panasonic sa pm 321 p service manual

Page 2

Digital filter 8 fs

D/A converter MASH (1 bit DAC)
11 General

Power supply AC 120 V, 60 HZ

30 W

165 x 227 x 327 mm

(6-1/2" x 8-15/16 x 12-7/8")

2.7 kg (6|b.)

+5 to +35°C (+41°F to +95°F)

Power consumption
Dimensions (W x H x D)

Mass

Operating temperature range

Operation humidity range 5 to 90% RH (no condensation)

Power 0.6 W

mode

consumption in standby

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»PM321P-S Music center: SA-PM321P-S

Speaker: SB-PM3P-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 service information by anyone else could result in serious injury or death.

CONTENTS

1 Safety Precautions -----

1.1. General Guidelines -------------------------------------------------------- 4
1.2. Before Repair and Adjustment ---------------------------------------- 5
1.3. Protection Circuitry --------------------------------------------------------- 5
1.4. Caution For Fuse Replacement -------------------------------------- 5

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices ................................. 6
3 Precaution of Laser Diode ........................................... 7
4 Handling Precautions For Traverse Deck ............................... a
5 Service caution based on legal restrictions ........................... 9

5.1. General description about Lead Free Solder (PbF) ---------- 9
6 Accessories ............................................................. 10
7 Operating Instructions Procedures ....................................... 11
7.1. Main Unit & Remote Control Operation --11

7.2. Disc Information

8 Self diagnosis and speCIal mode setting-

8.1. Special Mode Table ..................................................... 13
8.2. Error Code Table --------------------------------------------------------- 14
9 Assembling and Disassembling ------------------------------------------- 16
9.1. Caution ------------------------------------------------------------------------ 16
9.2. Disassembly flow chart ................................................. 17
9.3. Main Parts Location Diagram ---------------------------------------- 18
9.4. Disassembly of Side Panel L 8. R --------------------------------- 19

9.5. Disassembly of Top Cabinet Unit
9.6. Disassembly of Headphone P.C.B-
9.7. Disassembly of Front Panel

9.8. Disassembly of Panel P.C_B ......................................... 21
9.9. Disassembly of Rear Panel ------------------------------------------ 21
9.10. Disassembly of XM Ready P.C.B .................................. 22
9.11. Disassembly of Tuner Pack .......................................... 22
9.12. Disassembly of Main P.c_B .......................................... 22
9.13. Disassembly of Power P.C_B ........................................ 23

-- 24

9.14. Disassembly of Speaker Terminal P.C.B

9.15. Disassembly of Transformer P.C.B

Page

9.16. Disassembly of CD Mechanism ------------------------------------ 25
9.17. Disassembly of Traverse Unit, Driving Gear, and Cam

Gear (CD Mechanism Unit) ------------------- ------ 25

9.18. Disassembly of Optical Pickup (CD Mechanism Unit) ----- 28
9.19. Disassembly of Traverse Gear A and Traverse Gear 8

(CD Mechanism Unit)-

10 Service Fixture and Tools

11 Service Positions ------------------------------------------------------------------ 31
11.1. Checking and Repairing of Headphone lacs ............... 31
11.2. Checking and Repairing of Panel P.C.B-u- .............. 32
11.3. Checking and Repairing of Transformer P.C.B .............. 33
11.4. Checking and Repairing of Main P.C.B ......................... 34
11.5. Checking and Repairing of CD Mechanism P.C.B ---------- 35

11.6. Checking and Repairing of Speaker Terminal P.C.B-

11.7. Checking and Repairing of Power P.C.B
11.8. Checking and Repairing of XM Ready P.C.B (Side A) ---38
11.9. Checking and Repairing of XM Ready P.C.B (Side B)----39

12 Voltage Measurement and Waveform Chan ......................... 40
12.1. Voltage Measurement -------------------------------------------------- 40
12.2. Waveform .............................................................. 44

13 Wiring Connection Diagram .................................................. 47

14 Block Diagram ---------------------------------------------------------------------- 49

15 Notes Of Schematic Diagram ................................................ 53

16 Schematic Diagram
16.1. CD Servo Circui
16.2. Main Circuit---

16.3. Panel Circuit ---------------------------------------------------------------- 58
16.4. Power Circuit --------------------------------------------------------------- 59
16.5. Transformer Circuit ------------------------------------------------------ 60
16.6. Tuner Extent Circuit, Headphone Circuit and Speaker
Terminal Circuit-"- ----------------------------------------------------- 61
16.7. XM Ready Circuit --------------------------------------------------------- 62

17 Printed Circuit Board ......................
17.1. CD Servo P.C.B and Panel P.C.B