Panasonic sa ak350pl

Page 1

ORDER NO. MD0704045CE

Service Manual

COMPACT

DIGITAL AUDIO

Remote: SB-AK350 V
Control

SA-AK350

S B-AK350

CD Stereo System
SA-AK350PL

Colour
(8)... Silver Type

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

(Order No. M0050936800) for this mechanism.

Specifications
RMS output power
THD 10%, both channels driven

1 kHz

(Low channel) 112.5 W per channel (3 Q)
10 kHz

(High channel) 112.5 W per channel (3 Q)
Total BI-Amp power 450 W
PMPO 4800 W

n FMIAM TUNER, TERMINALS SECTION
Preset station FM 20 stations
AM 15 stations
Frequency Modulation (FM)

Frequency range 87.9 to 107.9 MHz (200 kHz

steps)

87.5 to 108.0 MHz (100 kHz

steps)

Sensitivity 4.0 pV (IHF)
SN 26 dB 2.2 uV

Antenna terminal(s)
Amplitude Modulation (AM)
Frequency range

75 Q (unbalanced)

520 to 1710 kHz (10 kHz step)
Sensitivity

SN 20 dB (at 1000 kHz)
Audio performance (Amplifier)

560 uV/m

Panasonic?

Input Sensitivity] Input Impedance
Aux 250 mV, 14.7 kg
Music Port input jack

Terminal Stereo, 3.5 mm jack
Sensitivity 100 mV, 4.7 kg
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)

© 2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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SA-AK350PL

Fast forward and rewind time Approx. 120 seconds with
C-60 cassette tape

n DISC SECTION

Disc played [8 cm or 12 cm]

(1) CD-Audio (CD-DA)

(2) CD-RIRW (CD-DA, MP3 formatted disc)

(3) MP3
MPEG-1 Layer 3, MPEG-2 Layer 3

Bit rate

MP3 32 kbps to 320 kbps
Sampling frequency

MP3 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 120 V, 60HZ

Power consumption 115 W
Power consumption in standby 0.28 W
mode

Dimensions (W x H x D) 250 x 330 x 323 mm
Mass 7.1 kg
Operating temperature range +5 to +35°C

Operating humidity range
It SYSTEM
SC-AK350 (PL)

5 to 90% RH (no condensation)

Music center: SA-AK350 (PL)
Speaker: SB-AK350 (PL)

For Information on speaker system, plesae refer to the original
Service Manual (Order No. MDO70404BCE) for SB-AK350PL-S.

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
4

1.2. Before repair and adjustment
1.3. Protection Circuitry

1.4. Safety Part Information
2 Prevention of Electra Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices ................................. 5
3 Handling Precautions For Traverse Deck ............................... 7
4 Precaution of laser diode ....................................................... 9
5 About Lead Free Solder (PbF) .............................................. 10

5.1. Service caution based on legal restrictions .................... 10

6 Accessories -------------

7 Operating Procedures-
7.1. Main Unit Key Buttons Operation

7.2. Remote Control Key Buttons Operations-

8 New Features ------------------------------------------------------------------------ 14
8.1. Using the Music Port .................................................... 14
9 Self diagnosis and special mode setting .............................. 15
9.1. Service Mode Summary Table -------------------------------------- 15
9.2. Special Mode Table 1 .................................................. 15
9.3. Raliability Test Mode (CRS1 Mechanism) ---------------------- 19

9.4. Error code Table Display"-
10 Assembling and Disassembling
10.1. Caution -----
10.2. Disassembly flow chart ------------------------------------------------- 27

10.3. Main Parts Location
10.4. Disassembly of Top Cabinet-n -------------------------------- 29
10.5. Disassembly of CD Changer Unit (CRS1)
10.6. Disassembly of Rear Panel

10.7. Disassembly of Main P.C.B.- --31
10.8. Disassembly of Transformer P.C.B. .............................. 31
10.9. Disassembly of Power P.C,B. .......................... 32
10.10. Disassembly of Front Panel Unit ----------------------------------- 33
10.11. Disassembly for Panel P,c_B_ ....................................... 34
10.12. Disassembly of Tact Switch P.C.B. ............................... 34
10.13. Disassembly of Deck mechanism unit ........................... 35

10.14. Disassembly of Deck P.C.B.
10.15. Disassembly of Traverse Uni

10.16. Disassembly for Deck Mechanism-
10.17. Disassembly of Deck Mechanism P.C.B.

10.18. Disassembly of cassette lid --------

10.19. Rectification for tape jam problem ................................. 40

11 Service Fixture and Tools ..................................................... 42
12 Service Positions ......................................................... 42
12.1. Checking and Repairing of Main P_C_B_ ........................ 42
12.2. Checking and Repairing of Transformer P.C.B. ............. 43

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