Sony srf 26 service manual

Page 2

SRF-26

SECTION 1
DI SASSEM BLY
KNOB (T) SETTING g' °'ew1~7x

o knob (T)
Turn the shaft of variable \

capacitor fully in the direc- \

non of arrow. / 2 T4 49 a

6
o / , , as
k) «99 ,

Install knob 1T) as V"

illustrated. hum". . r 7/ "1M

0

D Shaft of variable
capacitor

0(i'

mam board
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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. 1. Short ICl pin 1 and pin 29.

2. Connect. a 33kohm resistor between 1C1 pin 4 and pin 7.

3. Connect the frequency counter through luF electrolytic

FM MPX ADJUSTMENT (VCO)

BAND selector: FM capacitor between [01 pin 4 and ground.
MODE : ST (AEP, French) 4, Adjust RTl for the reading of 76kH2 on the Frequency
FM SENS : DX (US) counter.

VOLUME control: mechanical mid

FM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on VTVM. Adjustment Location: MAIN BOARD
US 86.5MH2 109.5MHz * Component Side - -
AEF, French 87. 35ml: 108. 05MH2

L4 (IT-3

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on VTVM.

CTZ: FM TRACKING

86. BMHz 105. MHz ADJUSTMENT Q)
cm: FM FREQUENCY 9 \
L3-1, L3-2 (IT-2 COVERAGE ADJUSTMENT s
L3-l,3-2: FM TRACKING.
ADJUSTMENT WW/l

Adjustment Location: MAIN BOARD

-- Component Side -- \ Em}
\ : n 2
FM (MONO) s 5 w;
FM RF ssa VTVM 1...:
Q TP (FM IN} M0115- 5v range)
329
0.0! F
O " Z l ICZI
set i 1
22 5 kHz frequency I l
deviation by 400M! . L4: FM FREQUENCY COVERAGE ADJUSTMENT
signal headphone: lack