Sony st v 902 service manual

Page 1

SERVICE MANUAL

AEP Model
UK Model

This set is FM stereo/FM-AM
Tuner section in LBT~V902/V90260.

SPECIFICATIONS
Tuner
Syslem FM slereo
FM/AM superhelerodyne tuner

FM tuner seclion

Tuning range 87.5 to 108 MHz

Anlenna 75 ohms unbalanced

Intermediate lrequency 10.7 MHz
MW/ LW lune! seclion

Tuning range MW: 522 to 1.6111041 (Malian model)

Anlenna

lnlermediale lrequency
Power requirements

Power consumplion
AC outlet

Weighl

Dimensions

531 la 1.602kHz (olhor models)

LW: 144 to 288kHz (Inlinn model)
153 to 279kHz (other models)
AM loop antenna
Exlernal antenna lerminal
450 kHz
240V AC. 50H: (UK model)
220V AC. 50": (other models)
IO W
2 swilched. lolal 500 W max,
Approx. 2.4 kg
Approx. 355 X 80 X 312 mm
(w/h/d, includlng projections)

SAFETY-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY MARK A Of! 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 PUB-
LISHED BY SONY.

FM STEREfl/FM-AM TUNER

SONK

Page 2

ST-V902

SECTION 1
SERVICING NOTES
Note on Ceramic Filter (CF1.2,3) A Replacement. O: Mounted
X : not Mounted
FM

This set employs three ceramic filters (CF1,2,3) A which Ceramic filter Mount

should have the same color marking to identify their center intermediate

frequency. Therefore F M IF offset adjustment by * D609 CD'O" Center fre- * D609 frequency

. MHZ) (MHZ)

IS necessary to match the center frequency of the mark quency (

ceramic filters used with FM intermediate frequency. White 10.750 0 107150
Red 10.700 X 10.700

color markin . . t r
9 FM intermediate frequency IS determined by the three

types as shown above. Ceramic filters of same center fre-
quency,i.e., of same color coding should be used for CH, CFZ,
and CF13.

When replacing the ceramic filters, perform the FM Di-
scriminator Adjustment.

(CFI.2,3) A

A: AEP, UK Model: CM. 2
WG. I'I Model: CFl. 2, 3

MODEL lDENTlFlCATlON
- Specification Label -

SONYo MODEL NO. sr-v902

FM STEREO/FM - AM TIMER TUNER

AEP, West Germany.
Italian Model: AC: 220V ~ 50/60 H1

UK Model: AC: 240V~ 50/60 Hz

SERIAL NOr
MADE IN JAPAN

LOCATION OF CONTROLS

SYSTEM POWER switch

El Display window

E] TUNING control

BAND selector

El MEMORY SCAN button

[El Buttons for storing station frequencies
AUTO tuning button
FREQUENCY/TIME button

[3 Buttons for setting the clock and timer
SLEEP button

Remote sensor