Sony hsth 422 service manual

Page 1

|_'|ST-H_4_22/H433

SERVICE-MANUAL

Canadian Model

East European Model
HST-H422

E Model
Australian Model

HST-H433
HST-H422/H433 are the
STEREO DECK RECEIVER in
FH-422PJ433R. Photo ; "51'433
Dolby noise reduction manufactured under license Model Name Using Similar Mechanism TC-H2600/H3600

from Dolby Laboratories Licensing Corporation.
' DOLBY' and the double-D symbol [II] are trademarks
of Dolby Laboratories Licensing Corporation.

DECK A TCM-190RA1 2A
DECK B TCM-190R322A

Tape Transport Mechanism Type

SPECIFICATIONS
"1" - HST-H433
System FM stereo .
FM/AM superheterodyne tuner MW 531 to 1.602MHZ
FM tuner section Tuning range (at 9kHz step)
lnlermediale frequency 10] MHz 530 to 1 710
CND, E, AUS Model 551 Model 3 "W1 3'5!
Tuning range 87.5 to 108MHz 65.00 to 74.00MHZ, SW 5-950 t° 17-900MHZ
87.50 to 108.00MH2 Antenna AM loop antenna 4
Antenna | 7b-ohms unbalanced External antenna terminal
Amplifier

Peak music power output 240 W (6 ohms)

AM luner seCliO Continuous HMS power output

Intermediate lrequency 450 kHz 25 W + 25 W
. HST-H422 (6 ohms, al 1 kHz. 5% THD)
CND Model EE1 Model
Tuning MW 531 to 1.710kHz 531 to 1.602MH2
range (at 9kHz step) (at 9kHz step)
LW 153 to 279kHz
Antenna AM loop antenna
External antenna terminal

- continued on next page -

COMPACT Hl-Fl STEREO SYSTEM
SONE

CND : Canadian
AUS : Australian
EE1 :East European

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HST-H422] H433 '

Inputs
Jack type Sensitivity Impedance
VIDEO Phone 450 mV 47 kohms
CD Phone 450 mV 47 kohms
MICROPHONE Phone 1 mv 10 kohms
MIC 1 Phone 1 mV 10 kohms
MIC 2 Phone 1 mV to kohms
* For HST-H422
For HST-H433
Outputs ,
Jack type Impedance
HEADPHONES Stereophone Accepts headphones ol 8 ohms
or more

Cassette deck
Recording system
Frequency response

4-track 2-channel stereo

DOLBY NFI OFF

With Type II cassette (Sony UXvS)
4O HZ to 14 kHz (:3 dB)

With Type I cassette (Sony HF-S)
40 Hz to 13 kHz (:3 dB)

Wow ant flutter 0,1 % (WFIMS)

General

Power requirements HST-H422 (Canadian model)
120 V AC, 60 Hz

HST-H422 (East European model)
220-23DV AC, 50H:

HST-H433 (Australian model)
240V AC, 50H1

HST-H433

(E model)

110 - 120/220 - 240 V AC
adjustable, 50/60 Hz

Canadian model 105 W

Models for other countries 75 W

Switched, 100 W max.

Approx. 5.5 kg (12 lb 4 oz)

Approx. 225 X 270 X 260 mm

(8/. X 103/. X 10V. inches)

(w/h/d. including projections)

Power consumption

ACoutIet
Weight
Dimensions

SAFETV-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY MARK A 0R DOTTED LINE
WITH MARK A ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL T0 SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.

TABLE OF CONTENTS
Sedan Iiile Base
1. GENERAL
Parts Identification .................................................... 4
2. DISASSEMBLY ............. ........................... 5
3. MECHANICAL ADJUSTMENTS ..... ........ 5
4 ELECTRICAL ADJUSTMENTS .. 6
5. DIAGRAMS
5-1. Circuit Boards Location .................................. 9
5-2. Semiconductor Lead Layouts 10
5-3. Pin Functions of |C501 . 11
5-4. Printed Wiring Board
- Tuner, PC Main section . ............................. 12
5-5. Schematic Diagram
- Tuner, PC Main section - ............................. 15
5-6. Printed Wiring Board
- TC Main, Panel section - .............................. 19
5-7. Schematic Diagram
- TC Main, Panel section -. . 23
5-8. Printed Wiring Board
- Power, MD section - ..................................... 27
5-9. Schematic Diagram
- Power, MD section - ..................................... 31
5-10. IC Block Diagrams ......................................... 35
6. EXPLODED VIEWS
6-1. Front Panel Section .. . 37
6-2. Mechanism Section 1 39
6-3. Mechanism Section 2.. .. 40
6-4. Mechanism Section 3 ..................................... 41

7 . ELECTRICAL PARTS LIST 42

ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!

LES COMPOSANTS roENTIPIEs PAFI UNE MARQUE A sun
LEs DIAGRAMMES SCHEMATIOUES ET LA LISTE DES PIECES
SONT CRITIQUES POUR LA SECURITE DE FONCTIONNE-
MENT. NE REMPLACER sEs COMPOSANTS QUE PAFI DES
PIECES SONY DONT LES NUMEROS SONT DONNES DANS
CE MANUEL ou DANS LEs SUPPLEMENTS PUBLlEs PAR
SONY.