Panasonic sa ak 340 ee service manual

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ORDER NO. MD0512483C3

Service Manual

CD Stereo System
SA-AK340EE

DIGITAL Aunlo Colour
(8)... Silver Type

COMPACT

33340

Remote SB-340

Control SA-AK340

Notes: This models CD mechanism changer unit is CRS1. Please refer to the original Service Manual
(Order No. MDO50936800) for this mechanism.

Specifications
n AMPLIFIER SECTION
RMS Output Power

THD 10%, both channels driven

1 kHz

(Low channel)

10 kHz

(High channel)
Total Bi-Amp power

105 W per channel (3 Q)

105 W per channel (3 Q)
420 W

n FMIAM TUNER, TERMINALS SECTION

Preset station

Frequency Modulation (FM)
Frequency range

Sensitivity

S/N 26dB

Antenna terminals
Amplitude Modulation (AM)
Frequency range
Sensitivity

S/N 20dB (at 999 kHz)
Music Port input jack
Terminal

Sensitivity

FM 15 stations
AM 15 stations

87.50 to 108.00 MHZ (50 kHz
steps)

4.0 W (IHF)
2.2 W
75 Q (unbalanced)

522 to 1629 kHz (9 kHz step)

560 uV/m

Stereo, 3.5 mm jack
100 mV, 4.7 kQ

Panasonic

Phone jack
Terminal Stereo, 3.5 mm jack
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
Tape speed 4.8 cm/s
Overall frequency response (+3, -6 dB) at DECK OUT
NORMAL 35 Hz to 14 kHz
S/N ratio 50 dB (A weighted)

0.18 % (WRMS)
Approx. 120 seconds with

Recording system

Erasing system

Wow and flutter

Fast forward and rewind time
(3-60 cassette tape

n DISC SECTION

Disc played [8 cm or 12 cm]

(1) CD-Audio (CD-DA)

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

(3) MP3/WMA

Bit rate

© 2006 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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SA-AK340EE

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

Power supply

2 (Stereo) (FL,FR)

AC 230 V, 50H2

Power consumption 120 W

Power consumption in standby 0.5 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 (EE-S)

5 to 90% RH (no condensation)

Music center: SA-AK340 (EE»S)
Speaker: SB-AK340 (GC-SJ)

For information on speaker system, please refer to the original
Service Manual (Order No. MD051244488)

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 repair and adjustment
1.3. Protection Circuitry

2 Prevention of Electro 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-tree Solder ------------------------------------------------ 8

5.1. About lead free solder (PbF) ----------------------------------------- 8

6 New Features -------------------------------------------------------------------------- 9
6.1. CRS1 Mechanism Overview ------------------------------------------- 9

6.2. Music Port '11

7 Accessories '12
3 Operating Instructions Procedures --------------------------------------- 13
9 Self diagnosis and special mode setting ------------------------------ 15
9.1. Special Mode Table --------------------------------------------------- 15

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

1o 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
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 unit --------------------------- 30
10.13. Disassembly of Deck P.C.B.
10.14. Disassembly of Traverse Uni

10.15. Disassembly of optical pickup unit (CD mechanism

10.16. Disassembly of Deck Mechanism ---------------------------------- 35
10.17. Replacement for cassette lid ----------------------------------------- 37
10.18. Rectification for tape jam problem ................................. 33

11 Service Fixture and Tools ..................................................... 39
12 Service Positions ......................................................... 39
12.1. Checking and Repairing of Main P_C_B_ ........................ 39
12.2. Checking and Repairing of Transformer P1313. ............. 40

12.3. Checking and Repairing of Panel, Deck & Deck
Mechanism P.C.B.
12.4. Checking and Repairing of Power P.C.B.

13 Adjustment Procedures --------------------------------- 43
13.1. Cassette Deck Section ------------------------------------------------- 43
13.2. Tuner Section ---------------------------------------------------- 44

14 Voltage and Waveform Chart --------------------------------------- 45
14.1, CD Servo P.C.B. & Main P.C.B. ----------------------------------- 46
14.2_ Power PCB. and Transformer P.C.B. -------------------------- 48

14.3. Waveform Chart ---------
15 Wiring Connection Diagram

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

17 Schematic Diagram --------------------------------------------------------------- 57
17.1. Notes of Schematic Diagrams --------------------------------------- 57
17.2. (A) CD Servo Circuit ----------------------------------------------------- 59
17.3. (B) Main (Tuner) Circuit ------------------------------------------------ 61
17.4. (B) Main Circuit ------------------------------------------------------------ 63