Panasonic st hd 550 service manual

Page 1

ADO101016C2

Service Manual

Tu ner
ST- H D550
SB-HDSSO
Colour
Remote
Control (N) ........... Gold Type
Transmitter Area
(E).... .Europe.
RS-H0550 SE-HD550
System SC-HD550
Tuner ST-HD550
Because of unique interconnecting cables, when a component Amplifier SE-HDsso
requires service, send or bring in the entire system. CD Player 5L.H[)550
Cassette Deck RS-HD550
Speakers! se-Hosso
*: Made in Spain.

Specifications

Pre-amplifier section

Timer section

Input sensitivity/impedance: Clock: Quarts - lock type
EXT IN; 300 mV/15 ks) Function: Play timer (everyday), Rec timer (everyday),
Sleep (120 min, 30 min intervals)
Tuner section
FM frequency range: 87.50 - 108.00 MHz General
(005 MHz steps) Dimensions (WXHXD): 210x76.3x251 mm
FM antenna terminal(s): 75 Q (unbalanced) Mass: 1'1 k9
AM frequency range: 522 - 1629 kHz (9 kHz steps) Notes: Specifications are subject to change without notice.
52° 1630 kHz (10 kHz Seps) Mass and dimensions are approximated
A WAR N | NG

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 wutions 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 prolessional 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®

© 2001 Matsushita Electric Industrial 00., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

CONTENTS

1 Note-
2 Before Repair ---------
3 Location of Controls
4 Operation Checks and Component Replacement Proceduress
4.1. Checking for the FL P.C.B. ..3
4.2. Checking for the main P.C.B.

Page

7 Type Illustration of lOs, Transistors and Diodes .................... 5
8 Schematic Diagram Notes -5
9 Schematic Diagram ------- .3
10 Printed Circuit Board Diagram .............................................. 13
11 Wiring Connection DiagraM
12 Block Diagram '-

5 To Supply Power Source ----------- "3 13 Terminal Function of me

6 Self-Diagnostic Function -------------------------------------------------------- 4 13.1. mm (CZBBGF000257):System Control/FL Drive --------- 20
6.1. To display the malfunction code --4 14 Replacement Parts Llst-
6.2. To return to the normal display- --4 15 Cabinet Parts Locatlon --
6.3. Display contents ------------------------------------------------------------ 4

2 Before Repair

This equipment (ST-HD550), which is a component of the
system, is supplied with power from the Amplifier (SE-HD550).
When repairing this equipment or checking operation of the
system, be sure to connect to the amplifier with it.

Power supply and operation check in the state of it as a single
equipment is impracticable.

1 Note

Refer to the service manual for Model No. SE-HD550 (Order
No. AD0101 01502) for information on Accessories and
Packaging.

3 Location of Controls

® Display panel
The display also shows information for the cassette deck, CD
player, and amplifier.

(9 Play tlmer/record tlmer button and Indicator
(6) PLAY/o REC)

© Clock/timer button (CLOCK/TIMER)

@ Set button (SET)

© Tunlngltlme adjust buttons
(TUNE/TIME ADJUST V, A)

© Tuning mode button (TUNE MODE)

® RDS button (RDs)

Band select button (FWAM)