Technics STCH 530 Service Manual

Page 1

ORDER NO. AD9505127CS

Service Manual

. Tuner/Sound Processor Tuner
SB-CH530A SB-CH530A
, a .. _
sL-CH530 ST-CH530 Colour
: (K) : Black
Areas
i ' 1 Suffix for Area Colour
Remote Control HS-CH730 SE-CH530 Model No.
Transmitter
(E) Europe
Because of unique interconnecting cables, when a component (EG) Germany and ltaly
requires service, send or bring in the entire system. _ , (K)
Asia, Latin America.
. _ _ _ (GC) Middle East. Africa and
Specmcations Oceania

I Preamplifier section
Input sensitivity/impedance
[For (E) and (EG) areas]

System: SC-CH530

PHONO 2.5 mV/47 k5; I AM tuner section

EXTERNAL 250 HIV/15 k9 Frequency range

[For ((50) area] [For (E) area]

AUX 250 mV/15 k9 MW 522 - 1611 kHz (9 kHz steps)

EXTERNAL 250 "IV/15 K52 5130 - 1820 kHZ (10 kHz steps)
Output level LW 144 - 288 kHz (9 kHz steps)

EXTERNAL REC OUT 150 [TN/1.5 k9

[For (EG) and (G0) areas]
Frequency response AM
(For (E) and (EG) areas]

522 - 1611 kHZ (9 kHz steps)
530 - 1620 kHz (10 kHz steps)

PHONO 30 Hz -- 15 kHz/ Sensitivity (SM 20 dB)
+1.5 to~2.0 dB [For (E) area]
EXTERNAL 20 Hz- 40 kHz MW 500 (IV/m
[For (cc) area] LW so uv
AUX 20 H2- 40 kHz [For (EG) and (as) areas]
EXTERNAL 20 Hz - 40 kHz AM 500 Wm

I E0; SFP section I Timer section

E0 SPACE mode Clock Quartz-lock type
3 modes HALL. CLEAR. HEAVY Function 24-hour programmable;
Mic Echo 1,0, 1.2, 1.4, 1.6 sec. Play timer (1 time), Her: timer (1 time).
. I FM tuner section Sleep (120 min. 30 min intervals)
Frequency range 87.50- 108.00 MHz Setting 1 minute - 23 hours 59 minutes (1 min. intervals)
(0.05 MHz steps) I General
sens'mty 1.2 V HF sabe) Dimensions (w x H x D) 270x 89 x 274 mm
5/ 26 45 1-5 V Weight 1.6 kg
SIN MONO 70 dB (7.5 dB. IHF) _
Stereo separation 1 kHz 55 dB gate. . . h . h t .
. Antenna terminal(s) 75 Q (unbalance) pecifications are subject to c ange wrt cu notice.
. Weight and dimensrons are approxmate.
a System Tuner/sound processor Compact disc player Amplifier Cassette deck Speakers
SC-CHSSO ST-CHSSO SL-CH530 SE-CHSSO HS~CH730 *SB-CHSGOA
>l= :For (E) and (EG) areas . Made in PAES
For (GC) area ......... Made in NABEL
AWARNING
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.

© 1995 Matsushita Electric industrial Co., Ltd.
All rights reserved Unauthorized copying
and distribution is a violation of law.

Technics®

Page 2

ST-CH530 l

l Contents

Page
Location of Controls .. .. 2 Schematic Diagram ..............
Setting the Time ..... 2 Printed Circuit Board Diagram .

About the Self-Diagnostic Mode 3 Wiring Connection Diagram.
Operation Check and Block Diagram ...............
Main Component Replacement Procedures ..... 4 Function of IC Terminals ..
To Supply Power Sourse .......... 5 Replacement Parts List
Measurements and Adjustments .. 6 Cabinet Parts Location .....

NOTE: -
Refer to the service manual for Model No. SE-CH530 (ORDER No. A0950512602) for information on Accessories,
Stacking the Components, Connections" and Packaging".

I Location of Controls

®Source input select button (SELECTOR)
1 2 ® 4 ®Remote control signal sensor (SENSOR)
3) @Karaoke mode select button ((KARAOKE)
@Tuningltimer select button (T UNINGrrlMER, A,V)
®Set button (SET)
®Record timer button (Ill REC)
@Play timer button (El PLAY)
.FM button (FM)
@Tuner indicator (TUNER)
_, @ LWIMW select button (LWIMW)...for (E) area
AM button ...... for (EC) and (60) areas
© ® ®@®@@ ® ® @ @Tuning mode select button (TUNING MODE)
' @Timerlclock button (TIMER/CLOCK)
@Display mode selector button (DISP MODE)...for (EG) area
@PTY selector button (PTY SEL)...for (EG) area
@PTY search button (PTY SEARCH)...for (EG) area

é
-o

:u-

l Setting the Time

This is a 24-hours display clock.
These instructions explain how to set the timer for 16:25 (4:25 pm.) on .7 _1
Wednesday. a .Q a- 3~5 2
1 Switch on the power
2 (D Press TIMER/CLOCK to show CLOCK.

Within 8 seconds:

® Press SET.
3 (D Press TUNING/TIMER V or /\ to select the day.

® Press SET.
4 (D Press TUNING/TIMER v or /\ to select the hour. V

® Press SET. 1 2 3
5 6) Press TUNING/TIMER V or A to select the minutes. Powsfi ® ® 6) TUNING/TIMER ® m

® Press SET to finish setting the time. q I) v A Q

The display will return to the previous display after about 3 mum ='-

seconds. 9)

I
When SUN 0:00 flashes -1._ipj _ ..
It flashes when you connect the AC power supply cord for the first time I T x 3::-
or if there has been a power failure.
if this happens. reset the time.
4 5

If the minutes setting has gone wrong: TUNINGITIMER TUNING/TIMER
1. Press TIMER/CLOCK. (D ® sir (D ® sat
2. PressSETatimes. E g Q E" Ag Q
3. Press TUNING/TIMER V or A to select the minutes, and then

press SET. Y) $3

I I I

To display the clock again: 1155] a. EEK _ ..
Press Tl MER/CLOCK. l :SSI I m"
The clock display will appear for about 8 second.

Page 25

ST-CH530

0552
POWER
SUPPLY

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