Panasonic sa ak 57 service manual

Page 1

COMPACT

MGIL AUDIO
SB-PS70

MASHI1

multI-Slage none shaping

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SB-AK57

Dom

ORDER NO. MD990202303

CD Stereo System

PRO-LOGIC 53A AK57
Colour
I (S) Silver Type
Area --
Suffix for
Area Colour
Model No.
Asia, Latin America, Africa
((30) . (S)
and Middle Near East

Remom
Control _ - '
Transmitter MUSIC Center Speaker Center Speaker Surround Speaker
SC-AT<57(GC) SA-AK57 (GC) SB-AK57 (GC) SB-PC70 (so) SB-PS7O (so)
*1 ' *2

MASH is a trademark of NTT.

Manufactured under license from Dolby Laboratories

TAPE SECTION: AR2 MECHANISM SERIES

Licensing Corporation.
DOLBY, the double-D symbol and "PRO LOGIC" are
trademarks of Dolby Laboratories Licensing Corporation.

CD SECTION: RAE01522- M TRAVERSE DECK SERIES

I Specifications
I Amplifier Section

Front aipeakIer
Power utput
PM 0
RMS power output
THD (at 1 kHz) 10%, both channels driven
105W per channel (692)

° 22OOW

Power output in
Doldy Pro Logic mode

PMPO Total 3300W
RMS power output
THD (at 1kHz) 10% both channels driven Total 390W

Front 105W per channel (632)

Center 90W per channel (8&2)

Surround 45W per channel (8&2)
input sensitivity and impedance .

AUX 250mV,10K£2

MIC 0.7mV, 800$)

I 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

Recording system
Erasing system

Tape speed 48 cm/s
Overall frequency response (+3, -6 dB at DECK OUT) .
NORMAL (TYPE I) 35 Hz - 14 kHz
HIGH (TYPE II) 35 Hz - 14 kHz
S/N
Dolby NR off 50dB (A weighted)
Dolby NR on 60d3 (CCIR)

Wow and flutter
Fast forward and rewind time
Approx- 120 seconds with 0-80 cassette tape

0.18 0/0 (WRMS)

. D/A converter

I FM Tuner Section

Frequency range
Sensitivity

S/N 26dB
Antenna terminal(s)

I AM Tuner Section

Frequency range

87.5 - 108.0 MHz (50 kHz steps)
1.8 uV(|HF)

1.5 (IV

75 Q (unbalanced)

522 - 1629 kHz (9kHz steps)
520 - 1680 kHz (10kHz steps)

Sensitivity

S/N 20 dB 500 pV/m
I CD Section
Sampling frequency 44.1 kHz
Decoding 16 bit linear
Beam source/wave length Semiconductor laser / 780 nm
Number of channels Stereo

Frequency response
Wow and flutter
Digital filter

20Hz «- 20kHz (+1dB, ~2dB)
Below measurable limit
8 fs

MASH(1bHDAC)

I General
Power cOnsumption
Power supply

Dimensions (W le x D)
Weight

184W

AC 110V/127V/220V/230- 240V 50/60Hz
270 x 331 x 388 mm

8.6 kg

Notes :

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

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

I C 1999 Matsushita Electronics (S) Pte. Ltd.
All rights reserved. Unauthorized copying

i and distribution is a \z'iri'ri;i.ttOlt of iaw. '

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SA-AK57 1

I Self-Diagnostic Display Function

I Self-diagnostic display
This unit is equipped with a self-diagnostic display function which. if a problem occurs, will display an error code corresponding to the
problem.

Use this function when performing maintenance on the unit.
I How to enter the Self-Diagnostic Function

Display
Turn the unit on with no cassette in I
M the deck. (S-L CTOR : TAPE) T I

I

Ill

Press and hold the "I TUNING MOD "
button for at least 2 seconds.

/ '
' rune MODE

'7
0.. 1
i; )
-._._._ . wwfl ..._
Jr tUHE.MooE While pressing the "I TUNING
"I! II x MEMORV
MOD: button, press by) 1» H
Marrow MEMORY/SET" button for at least " \\
2 seconds. )

I ,.

T" will appear on the FL display.
T (unit Is in the Self-Diagnostic Function.)

Display

assette Mechanism Test (For error code H01, H02, H03, F01, F02)

Press "TAPE". D:.-.CK 1/2" to select Deck 2.
Load a cassette tape with the erasure prevention tab, remove from left side only and close the cassette holder.

I C
1.
2.
3. Press "bk-5m MEMO RY" (Tape will be stOp after 2 seconds).
4
5
6
7
8
9

Load a cassette tape with the erasure prevention tab, remove from right side only and close the cassette holder.
Press 144.544 :IVI MODE/DP" (Tape will be stop after 2 seconds).
Load a pre-recorded tape with both side record tabs intact and close the cassette holder.

Press I> TUNE/TIME ADJA " (After T98 function. tape will stop automatically).

Press "GEO/STOP" (Tape will not move). as.

Press "I TUNING MODE" to indicate Error code. '
. If several problem exst. error code will change each time when "I TUNING MODE" is pressed.
(eg. H01 -) -IOB-) F01 ..... etc.)

10. Dress TAPE. DECK 1/2 to select Deck 1.

11. Repeat step 2 to 9 to test Deck 1. (Tape Deck 1 will not check H02 because of no recording function)

I CD Mechanism Test (F15, F16, F25 ~ F28, F75)
1. Press "CD".
2. Dress "NEXT OPEN".
3. Press "I TUNING MODE" to indicate Error Code.

- If several problem ex'st, error code will change each time when "I TUNING MODE" is pressed.
(eg. 315-) F16->F25 ..... etc.)

I To clear all Error code
1. Dress "I TUNING MODE" button for 5 seconds.

2. :L indicator shows CLEAR" for 1 second and change to ".T

I How to get out from Self-Diagnostic function
1. Press POWER" button OFF.

I Power Amplifier Failure (F61)

1. When power amplifier fail, :61 will indicate automatically.

W18_..