Panasonic sa ak240gcp sm

Page 2

SA-AKZAOGCP

Bit rate

MP3, WMA 32 kbps to 320 kbps
Sampling frequency

MP3/WMA 32 kHz, 44.1 kHZ, 48 kHz
CD-DA 44.1 kHz
Decoding 16 bit linear
Digital filter 8 fs
D/A converter MASH (1 bit DAC)
Pick up

Wavelength 780 nm

Beam Source Semiconductor laser
Audio output (Disc)
Number of channels

n GENERAL

2 (Stereo) (FL,FR)

Power supply
AC 110 to 127/220 to 240 V, 50/60HZ

Power consumption 95 W
Power consumption in standby 0.6 W
mode

Dimensions (W x H x D) 250 x 330 x 343 mm
Mass 6.9 kg
Operating temperature range +5 to +35°C

Operating humidity range
It SYSTEM
SC-AK24O (GCP-S)

5 to 90% RH (no condensation)

Music center: SA-AK240 (GCP-S)
Speaker: SB-AK240 (GC-S)

For information on speaker system, please refer to the original
Service Manual (Order No. MD0512446A3)

Notes:

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

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

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

Page
1 Safety Precautions .................................................................. 4
1.1. General Guidelines -------------------------------------------------------- 4
1.2. Before Use -------------------------------------------------------------------- 4
1.3. Before repair and adjustment ......................................... 4
1.4. Protection Circuitry --------------------------------------------------------- 4

2 Prevention of Electra Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices ................................. 5
3 Handling Precautions For Traverse Deck ............................... 6

4 Precaution of laser diode -----
5 Handling the Lead-free Solder
5.1. About lead free solder (PbF)-

6 New Features -------------------------------------------------------------------------- 9
6.1. CRSi Mechanism Overview ------------------------------------------- g
6.2. Music Port ------------------------------------------------------------------- 11
7 Accessories -------------------------------------------------------------------------- 12

13
9 Self diagnosis and special mode setting ------------------------------ 15
9.1. Special Mode Table -15

8 Operating Instructions Procedures -----

9.2. Error code Table 7

10 Assembling and Disassembling -21
10.1. Caution ------------------------------------------------------------------ 21
10.2. Disassembly flow chart ------------------------------------------------- 22
10.3. Main Parts Location ----------------------------------------------------- 23
10.4. Disassembly of Top Cabinet ----------------------------------------- 24
10.5. Disassembly of Rear Panel ---------------------------------------- 24
10.6. Disassembly of CD Changer Unit (CRS1) --------------------- 24
10.7. Disassembly of Main P.C.B. ----------------------------------------- 26

10.8. DiSassembly of Transformer P.C.B. .............................. 25

Page

10.9. Disassembly of Power P.C.B. ...................................... 27
10.10. Disassembly of Front Panel Unit ................................... 23
10.11. Disassembly for Panel P_c_B_ --------------------------------------- 29
10.12. Disassembly of Deck mechanism unit ........................... 30
10.13. Disassembly of Deck P.C.B. ......................................... 30
10.14. Disassembly of Traverse Unit ---------------------------------- 30

10.15. Disassembly of optical pickup unit (CD mechanism) ------ 32
10.16. Disassembly of Deck Mechanism ---------------------------------- 34

10.17. Replacement for cassette lid ------
10.18. Rectification for tape jam problem-

11 Service Fixture and Tools ..................

12 Service Positions ------------------------------------------------------------------ 3g
12.1. Checking and Repairing of Main P_C_B_ ........................ 39
12.2. Checking and Repairing of Transformer P.C.B. ............. 40

12.3. Checking and Repairing of Panel, Deck & Deck
Mechanism P.C.B. ---------------------------------------------- 41
12.4. Checking and Repairing of Power P.C.B. ---------------------- 42
13 Adjustment Procedures
13.1. Cassette Deck Section

13.2. Tuner Section ----------

14 Voltage and Waveform Chart ------------------------------------------------ 45
14.1. CD Servo P.C.B. & Main P.C_B, ----------------------------------- 45
14.2. Power P.C.B. & Transformer P.C.B. ------------------------------ 48
14.3. Waveform Chart ----------------------------------------------------------- 49

15 Wiring Connection Diagram .................................................. 51

16 Block Diagram ---------------------------------------------------------------------- 53

17 Schematic Diagram --------------------------------------------------------------- 57
17.1. Notes of Schematic Diagrams ....................................... 57