Panasonic sa ak340gcp

Page 1

ORDER NO. MD0512447C3

Service Manual

COMPACT

DIGITAL AUDIO

SA-AK340

A n -

Remote
Control

S B-AK340

SB-AK340

CD Stereo System

SA-AK34OGCP

Colour
(8)... Silver Type

Notes: This models CD mechanism changer unit is CRS1. Please refer to the original Service Manual

(Order No. MDOSOQSGBCO) for this mechanism.

Specifications

n AMPLIFIER SECTION

RMS output power

THD 10%, both channels driven
1 kHz

(Low channel)

10 kHz

(High channel)

105 W per channel (3 Q)

105 W per channel (3 Q)
Total Bi-Amp power 420 W
n FMIAM TUNER, TERMINALS SECTION
Preset station FM 15 stations
AM 15 stations
Frequency Modulation (FM)

Frequency range 87.50 to 108.00 MHz (50 kHz

steps)
Sensitivity 4.0 W (IHF)
S/N 26dB 2.2 V

Antenna terminal(s) 75 Q (unbalanced)
Amplitude Modulation (AM)
Frequency range 522 to 1629 kHz (9 kHz step)
520 to 1630 kHz (10 kHz step)
Sensitivity

S/N 20dB (at 999 kHz)

Music Port input jack

550 pV/m

Terminal

Panasonic

Stereo, 3.5 mm jack

Sensitivity 100 mV. 13 k9
Phone jack

Terminal Stereo. 3.5 mm jack
Mic jack

Terminal Mono, 3.5 mm jack
Sensitivity 0.7 mV, 680 Q

n CASSETTE DECK SECTION

Track system 4 track, 2 channel

Heads

Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor

AC bias 100 kHz
AC erase 100 kHz
4.8 cm/s

Recording system
Erasing system
Tape speed
Overall frequency response (+3, -6 dB) at DECK OUT
NORMAL 35 Hz to 14 kHz
S/N ratio 50 dB (A weighted)
Wow and flutter 0.18 % (WRMS)
Fast forward and rewind time Approx. 120 seconds with
(3-60 cassette tape
11 DISC SECTION
Disc played [8 cm or 12 cm]

© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

SA-AKIMOGCP

(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3, WMA formatted disc)

(3) MP3/VVMA
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 120 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-AK340 (GCP-S)

5 to 90% RH (no condensation)

Music center: SA-AK340 (GCP-S)
Speaker: SB-AK34O (GC-SJ)
Notes:

1.8pecifications 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

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

1.4. Protection Circuitry
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 ....................................................... 7
5 Handling the Lead-free Solder ................................................ 3
5.1. About lead free solder (PbF) .......................................... 8

6 New Features -------------------------------------------------------------------------- 9
6.1. CRS1 Mechanism Overview ------------------------------------------- g
6.2. Music Port

7 Accessorie

8 Operation Procedures -

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

9.2. Error code Table ---------------------------------------------------------- 17

10 Assembling and Disassembling ------------------------------------------- 21
10.1. Caution -------------------------------------------------------- 21
10.2. Disassembly flow chart ------------------------------------ 22

10.3. Main Parts Location---

10.4. Disassembly of Top Cabinet-

10.5. Disassembly of Rear Panel
10.6. Disassembly of CD Changer Unit (CRs1) ..................... 24
10.7. Disassembly of Main P.C.B_ ......................................... 25

Page

10.8. Disassembly of Transformer P.C.B. .............................. 25
10.9. Disassembly of Power P.C.B. ................................ 27
10.10. Disassembly of Front Panel Unit ................................... 28

10.11. Disassembly for Panel P.C.B.
10.12. Disassembly of Deck mechanism uni
10.13. Disassembly of Deck P.C.B. ---------

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 ......................................... 38
10.18. Rectification for tape jam problem ................................. 38
11 Service Fixture and Tools ----------------------------------------------------- 39

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

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 ....................... 43
13.1. Cassette Deck Section ................................................. 43
13.2. Tuner Section -------------------------------------------------------------- 44

14 Voltage and Waveform Chart ................................................ 46

14.1. CD Servo P.C.B. & Main P.C.B. -------

14.2. Power P.C.B. and Transformer P.C.B

14.3. Waveform Chan ---------------------------
15 Wiring Connection Diagram .................................................. 51
16 Block Diagram ...................................................................... 53