Panasonic sa ak 67 service manual

Page 1

ORDER NO. MD990406603

S_ervice M nual

CD Stereo System

SA- AK67

Colour
(3) SilverType
Area
Sutfix for
r
. Model No. Area Colou
( Asia, Latin America, Africa
(GO) . (S)
> and Middle Near East
Remote SB-PS55A SB-AK57 SA~AK67 SB-AK57 SB-PS55A
Control
Transmitter _
Music Center Speaker Surround Speaker

SC-AK67 (GC) SA-AK67 (GC) SB-AK57 (GC)

SB-PS55A (GC)

TAPE SECTION : AR2 MECHANISM SERIES

CD SECTION : RAE01522-2 TRAVERSE DECK SERIES

I Specifications

I Amplifier Section
PMPO 1800W
RMS power output
THD 10%, both channels driven
Input sensitivity and impedance
AUX 250mV,13.9KQ
MIC 0.7mV. 6809

90W per channel (69)

I Cassette Deck Section

Track system 4 track, 2 channel

Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor Dpvservo motor

Recording system {AC bias 100 kHz
Erasing system AC erase 100 kHz
Tape speed 4.8 cm/s
Frequency response (+3, -6 dB at DECK OUT)

NORMAL (TYPE I) 35 HZ 714 kHz
HIGH (TYPE II) 35 Hz - 14 kHz
SIN 50dB(A weighted)

Wow and flutter
Fast fontvard and rewind time
Approx. 120 seconds with 060 cassette tape

0.1a % (WRMS)

I FM Tuner Section

Frequency range 87.50 - 108.00 MHz (50 kHz steps)

Sensitivity 2.5 uV(IHF)
SIN 26dB 22 )LV

Antenna terminal(s)

I AM Tuner Section

75 Q (unbalanced)

Panasonic®

Frequency range
AM(MW)

Sensitivity
SIN 20 dB

I CD Section
Sampling frequency
Decoding
Beam source/wave length
Number of channels
Frequency response
Wow and flutter
Digital filter
D/A converter
Video CD
Physical format
Video data
Audio data
Video output
Video format
Output

I General

Power consumption
Power supply
Dimensions (W x H x D)
Weight

Notes :

522 - 1629 kHz (9kHz steps)
520 - 1630 kHz (10kHz steps)

560 )iV/m

44.1 kHz

16 bit linear

Semiconductor laser / 780 nm
Stereo

20HZ - 20kHz (+1 dB, ~2dB)
Below measurable limit

8 ts

MASH (1 bit DAC)

Based on CD Based on MPEG 1
Based on MPEG 1 Layer 2

NTSC/PAL
1 Vp-p, 75 o

1 45W

AC 110V/12N/220V/230 - 240V, 50/60Hz

270 x 331 x 340 mm
8.2 kg

1. Specifications are subject to change without notice.
Weight and dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum

analyzer.

© 1999 Matsushita Electronics (8) Pte. Ltd.
All rights reserved. Unauthorized copying
and distribution is a violation of law.

Page 2

SA-AK67
A WARNING

This service information is designed for experience 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.

I Contents Page

BEFORE USE .................................... 2 TROUBLESHOOTING GUIDE FOR VIDEO CIRCUIT .
BEFORE REPAIR AND ADJUSTMENT 2 ILLUSTRATION OF le, TRANSISTORS & DIODES ,
PROTECTION CIRCUITRY ..... 2 TERMINAL FUNCTION OF ICs

ACCESSORIES ................... 2 SCHEMATIC DIAGRAM

HANDLING PRECAUTIONS FOR TRAVERS 8 PRINTED CIRCUIT BOARD

PRECAUTION OF LASER DIODE 3 BLOCK DIAGRAM ............

SETTING THE TIME ........ 4 WIRING CONNECTION DIAGRAM

CONNECTIONS ................ 5 TROUBLESHOOTING GUIDE .......

LOCATION OF CONTROLS 6 MECHANISM PARTS LOCATION (RAA3408)
RECORDING FROM RADIO BROADCASTS 7 MECHANISM PARTS LIST ..............

RECORDING FROM COMPACT DISCS
TAPE-TO-TAPE RECORDING
OPERATION CHECKS AND MAIN COMPONENT R
SELF-DIAGNOSTIC DISPLAY FUNCTION .
DESCRIPTION OF ERROR CODE
CD TEST MODE FUNCTION

MEASUREMENTS AND ADJU

I Before Use

Be sure to disconnect the mains cord before adjusting the voltage selector. Note that this unit will be seriously damaged if this setting is not
Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to made correctly. (There is no voltage selector for some countries; the
the voltage setting for the area in which the unit will be used. correct voltage is already set.)

(lithe power supply in your area is 115V. set to the "110V position

or 120V, set to the "127V" position.)

8 & 9 LOADING MECHANISM PARTS LIST

10 CD LOADING UNIT PARTS LOCATION
CABINET PARTS LOCATION
REPLACEMENT PARTS LIST .
RESISTORS & CAPACITORS .
PACKING MATERIALS & ACCESSORIES .
PACKAGING

I Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors 0504 ~ C508 through a 109 , 5W resistor to ground.

DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance). as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.

Current consumption at AC 220V, 240V, 50 Hz in NO SIGNAL mode should be ~420mA, ~420mA respectively.

I Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:
o No sound is heard when the power is turned on.
- Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires
are shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:

1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.

Note:
When the protection circuitry functions. the unit will not operate unless the power is first turned off and then on again.

I Accessories
RAK-CH946WK RSAOOOG-J RSA0022-L SJ P521 3-2 RJA0019-2K RJL1 P01 6315A

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