Technics ST HD 70 Service Manual

Page 1

SL-HD70 ST-HD70

: s u aw

RS-HD70 SE-HD70

' SB-HD70

Remote control

transmitter

L Because of unique interconnecting cables, when a component

requires service, send or bring in the entire system.

SpecHMafions

Pre-ampiifier section
Input sensitivity/impedance
EXTERNAL: 250 mV/15 kQ
Output level
EXTERNAL: 150 mV/1.5 k0
Frequency response
EXTERNAL: 50 HZ-25 kHz
SIN
EXTERNAL: ON 82 dB (83 dB, IHF)

FM tuner section
Frequency range: 8750-10800 MHz (0.05 MHz steps)
Sensitivity: 1.8 W (IHF usable)
SIN 26 dB: 1.5 uv
SIN
MONO: 70 dB (75 dB, lHF)
Stereo separation
1kHz: 35 dB
Antenna terminalls): 75(2 (unbalance)

ORDER NO. AD9610197CZ

ervice Manual

Tuner
SB-H070

Tuner
Colour
(N) ................ Gold Type
Area
E ................ Europe.

System: SC-HDTO

AM tuner section

Frequency range: 522-1611 kHz (9 kHz steps) 530-1620 kHz
(10 kHz steps)

Sensitivity (SIN 20 dB): 500 uV/m

Timer section

Clock: Quartz~look type

Function: 24-hour programmable; Play timer (1 time), Rec timer
(1 time) Sleep (120 min., 30 min. intervals)

Setting: 1 minute-23 hours 59 minutes (1 min. intervals)

General

Dimensions (WXHXD): 196(Wide)/ G7(High)/ 235(Depth) mm

Weight: 1 .2 kg

Note:

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

System Tuner CD Player Amplifier Cassette deck Speakers
SC-HD70 ST-HD70 SLVHD70 SE-HD70 RS-HD70 ' SB-HD70
* Made in PAES
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.

Technics

©1996 Matsushita Electric industrial 00., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

ST-HD70

I Contents

Location of Controls .
Setting the Time.....
Preparing for the Remote Contro .
Installation
Connections
About the Self- agnostic Mode
Operation Checks and Main Component

Replacement Pdrooedures.
erlng Connection Diagram
Block Diagram .......

NOTE:

To Supply Power Source
Replacement of the Foot.
Schematic Diagram .
Printed Circuit Board Dlagra
Terminal Guide .........
Resistors and Capacitors
Replacement Parts List
Cabinet Parts Location
Paokagirm

Refer to the service manual for Model No. SE-HD'ID (ORDER No. A09610196A2) for information on Accessories".

ILocation of Controls
1

ISetting the time

The tuner displays the time, trequency and other information on
CDs and tapes

This is a 24-hours display clock.
These instructions explain how to set the timer for 16:25 on
Wednesday.

1 Switch on the power.

2 ® Press CLOCK/TIMER to show CLOCK".
Within 8 seconds:
Every time you press the button, the Indication changes in the
order oi CLOCK -. ® REC -> G) PLAY -vOriginal display.
® Press SET.

3 ® Press V or A to select the day.
Every time you press one of the buttons, the indication changes
in the order of SUNZMONZTUE :WED ZTHU Z FRI :SAT.
® Press SET.

4 (D Press V or /\ to select the hour.
(2 Press SET.

5 G) Press V or A to select the minutes.
® Press SET to finish setting the time.
The display will return to the previous display alter about 4 sec-
onds.

® Remote control signal sensor (SENSOR)
(2 Record timer button ( Q) REC)
(ED Play timer button (ED PLAY)
@ Clock/timer button (CLOCK/TIMER)
© Set button (SET)
Tuning/time adjust buttons
(V, A TUNING/TIME ADJUST)
® Tuning mode select button (TUNING MODE)
© Source input select button (INPUT SELECTOR)
© RDS display mode select button
(RDS DISPLAY MODE)
® Band select button and indicator (TUNER FMIAM)

2 3~5

When --:-- appears:

it flashes when you connect the AC power supply cord for the first
time or it there has been a power iailure.

Reset the time as explained above.

If the minutes setting has gone wrong:

1. Press CLOCK/TIMER.

2. Press SET 3 times.

3. Press V or /\ to set the minutes, and then press SET.

To display the clock again:

Press CLOCK/TIMER.

The clock display will appear for about 8 seconds.

For your reference:

When you turn OFF the system from the POWER button,
the system goes on standby and the STANDBV indicator
lights up.