Panasonic sa ns 55 p service manual

Page 2

11 General
Power supply AC 120 V, 60 Hz
54 W
212 mm x 184 mm x 308 mm
(8 11/32" X 71/4"x121/8")
3.4 kg (7.5 lb.)
+5 to +35°C (+41°F to +95°F

5 to 90% RH (no condensation

Power consumption
Dimensions (W x H x D)

Mass

Operating temperature range )
)

Operation humidity range

Power
mode

consumption in standby 0.5W (approx.)

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.
11 System : SC»NS55P-K Music center: SA-NSSSP-K

Speaker: SB-NSSSP-K

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 protessional 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

Page

1 Safety Precautions .................................................................. 4
1.1. General Guidelines ........................................................ 4

1.2. Before Repair and Adjustment ........................................ 5

1.3. Protection Circuitry --------------------------------------------------------- 5

1.4. Safety Part Information -------------------------------------------------- 5

1.5. Caution for fuse replacement ------------------------------------------ 6

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 ---------------------------------------------- 10
5.1. General description about Lead Free Solder (PbF) -------- 10
6 Accessories -------------------------------------------------------------------------- 11
7 Operation Procedures ........................................................... 12
7.1. Main Unit Key Buttons Operation -------------------------------- 12
7.2. Remote Control Key Buttons Operation ......................... 12

7.3. Disc Information

8 Self diagnosis and specIaI mode setting-
8.1. Service Mode Summary Table
8.2. Service Mode Table -------------

8.3. Error Code Table --------------------------------------------------------- 18
9 ASSeminng and Disassembling ........................................... 19
9.1. Caution ........................................................................ 19
9.2. Disassembly flow chart ------------------------------------------------- 20
9.3. Main Parts Location Diagram ---------------------------------------- 21

9.4. Disassembly of Top Cabinet Unit -----
9.5. Disassembly of D-Port and HP/ Music Port P.C.B.
9.6. Disassembly of XM Module P.C.B.
9.7. Disassembly of Tuner Pack -----

9.8. Disassembly of Rear Cabinet unit ................................ 24
9.9. Disassembly of Power and AC Inlet PCB, ................... 25
9.10. DiSassembly of Transformer P.C.B. -- ................ 25
9.11. Disassembly of Front Panel .......................................... 26
9.12. Disassembly of Panel P,c_B_ ........................................ 27
9.13. Disassembly of Main P.C.B. ......................................... 27

9.14. Disassembly of Switch P.C.B. --------------------------------------- 28

Page

9.15. Disassembly of Motor P.C.B. ---------------------------------------- 28

9.16. Disassembly of Gear Box--- -------------------------------------- 29

9.17. Disassembly of CD Loading Block -------------------------------- 30

9.18. Disassembly of CD Mechanism ------------------------------------ 31
9.19. Disassembly of Traverse Unit, Driving Gear, and Cam

Gear (CD Mechanism Unit) ------------------------------------------- 33

10 Service Positions ------------- 38

10.1. Checking and Repairing of D-Port and HP / Music Port

P.C.B.
10.2. Checking and Repairing of Panel P.C.B.
10.3. Checking and Repairing of Switch and Motor P.C.B. ----- 40
10.4. Checking and Repairing Transformer P.C.B. ------
10.5. Checking and Repairing Power and AC Inlet P.C.B. ------ 42

10.6. Checking and Repairing Main PCB. ............................ 43
10.7. Checking and Repairing CD Servo P.C.B. ..................... 44
11 Voltage Measurement & Waveform Chart ............................. 45
11.1. Voltage Measurement .................................................. 45

11.2. Waveform Chart ------

12 Wiring Connection Diagram

13 Block Diagram --------------------
13.1. CD SERVO/ OPTICAL PICKUP UNIT ........................... 53
13.2. MAIN(1/2)/ XM MODULE/ TUNER EXTENT/ PANEL/ D

PORT/ MOTORI SWITCH ............................................ 54
13.3. MAIN(2/2)/ HP/MUSIC PORT/ POWER/TRANSFORMER]
AC INLET ........................................................... 55

14 Notes Of Schematic Diagram ------------------------------------------------ 57

15 Schematic Diagram -------
15.1. CD SERVO CIRCUIT-
15.2. XM MODULE CIRCUIT-

15.3. MAIN CIRCUIT ------------------------------------------------------------ 51
15.4. PANEL CIRCUIT ---------------------------------------------------------- 64
15.5. TUNER EXTENT CIRCUIT, HP/ MUSIC PORT CIRCUIT
and D»PORT CIRCUIT ------------------------------------------------- 65
15.5. POWER CIRCUIT -------------------------------------------------------- 55
15.7. MOTOR CIRCUIT and SWITCH CIRCUIT --------------------- 67

15.8. TRANSFORMER CIRCUIT and AC INLET CIRCUIT ----- 68