Sony srf 29 service manual

Page 1

U8 Model
Canadian Model
AEP Model

E Model

POWER

SPECIFICATIONS

Frequency range FM:87.6-108MH2 (US,Canadian modei)
AM:530-1,710kHz (US,Canadian modei)
FM:87.6-107,5MHZ (AEP,E modeI)
AM:530-1,605kHz (AEP,E modei)

Antennas FMzHeadphone cord antenna
AMzfiuilt-in ferrite bar antenna
Power output 15mw+15mw(at 10% harmonic distortion)

with headphones having impedance of
32 ohms at DC operation

Output Headphone jack (stereo minijack)
Ioad impedance 32 ohms

Power requirements 3V DC, two R6 (size AA) batteries

Battery iife Approx. 18 hours with Sony batteries
SUM-3 (NU)
Dimentions Approx. 65.5 x 105.5 x 30 mm (w/h/d)

(2 5/8 x 4 1/4 x 13/16 inches)
not inc]. projecting parts and controis
Weight Approx. 859 (302) not incl. batteries
Accessories supplied
Stereo headphones (open-air type,l)

Design and specifications subject to change without notice.

AM/FMSTEREU RECEIVER
ONY;

Page 2

SRF-29

POINTER SETTING

direction of arrow.

Slide the pointer fully in the

SECTION 1
DISASSEMBLY

Turn the knob (T) fully in the
direction of arrow 0 I

Pointer

front cabinet

SECTION 2

ELECTRICAL ADJUSTMENTS

ELECTRICAL ADJUSTMENTS

- Repeat the procedures in each adjustment several
times, and the frequency coverage and tracking
adjustments should be finally done by the trimer
capacitors.

BAND selector: FM

FM SENS selector: ST (AEP, E, Italian)
: DX (US, Canadian)

VOLUME control: mechanical mid

FM FREQUENCV COVERAGE ADJUSTMENT

Adjust for a maximum reading on VTVM.

US, Canadian 86. SMIIZ 109. SMHz
AEP, E, Italian 87. 35MB: 108. OEMHz
L4 0T3

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on VTVM.
86. 5MIIZ 109. SMHZ
1.3-1, L3-2 CTZ

AM Section

BAND selector: AM CT1: AM TRACKING ADJUSTMENT\\
. . cu: AM FREQUENCY COVERAGE 4 r
VOLUME control: mechanical mid ADJUSTMENT \e
CTZ: FM TRACKING ADJUSTMENT
AM FREQUENCY COVERAGE ADJUSTMENT on: FM FREQUENCY COVERAGE Q)
Adjust for a maximum reading on VTVM. ADJUSTMENT /-I////I////
L3~1,3«2: FM TRACKING
US, Canadian 520Id-Iz l. 750kHz ADJUSTMENT
AEP, E, Italian 520kHz 1. 650KB2
L5 CT4

AM TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
620kHz 1.400inz

L2 CH

AM IF ADJUSTMENT

Adjust for a maximum reading on VTVM.
TI

FM MPX ADJUSTMENT (VCOI

Short 1C1 pin I and pin 29.

Connect a 33kohm resistor between [01 pin 4 and pin 7.

. Connect the frequency counter through luF electrolytic
capacitor between [Cl pin 4 and yound.

. Adjust RH for the reading of 76kI-Iz on the Frequency

counter.

Adjustment Location: MAIN BOARD
- Component Side -
L2: AM TRACKING AcJJUSTMENT

L5: AM FREQUENCY COVERAGE

L4: FM FREQUENCY COVERAGE ADJUSTMENT ADJUSTMENT

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