Read Sony SRF-H11 (serv.man2) Service Manual online
9
SRF-H11
FM 2nd OSC Adjustment
Procedure :
1. Turn the set to optional frequency.
2. Connect an electrolytic capacitor (10
Procedure :
1. Turn the set to optional frequency.
2. Connect an electrolytic capacitor (10
µF/16V) between pin !¡
of IC1 and ground.
3. Connect the frequency counter to @¢ pin and GND of IC1 as
shown the figure below.
4. Adjust L4 for 56.5 – 57.0MHz reading on the frequency
counter.
FM VCO Adjustment
Procedure :
Procedure :
1. Connect an electrolytic capacitor (10
µF/16V) between pin !¡
of IC1 and ground.
2. Connect the frequency counter to !ª pin and GND of IC1 as
shown the figure below.
3. Turn the set to 98MHz.
4. Adjust L6 for 37.95 – 38.05kHz reading on the frequency
4. Adjust L6 for 37.95 – 38.05kHz reading on the frequency
counter.
FM RF signal
generator
generator
Carrier frequency : 98MHz
Modulation
Modulation
: no modulation
Output level
: 1mV (60dB)
FM
WIRE ANTENNA
input
WIRE ANTENNA
input
set
0.01µF
Adjustment Location : MAIN board (See page 10)
Adjustment Location : MAIN board (See page 10)
L7
AM
FERRITE-BAR
ANTENNA
SRF-H11
Q1
R8
R3
R4
R2
C26
C28
C25
C15
C22
C19
C31
C17
C18
C29
C14
C30
C9
C11
C6
L4
L3
L8
L5
L6
C1
R7
R5
R1
C13
C10
C32
R6
C2
C4
C33
C20
C34
C12
C3
L9
L1
L2
1
5
10
15
16
20
25
30
IC1
C5
C21
C23
C27
C24
(SIDE A)
MAIN BOARD
SRF-H11
BCE
-2
-1
CV1
4
CV1-2
CV1-3
CT1-2
CT1-3
CT1-1
CT1-4
10
µF/16V
frequency counter
1
µ
F
L7
AM
FERRITE-BAR
ANTENNA
SRF-H11
Q1
R8
R3
R4
R2
C26
C28
C25
C15
C22
C19
C31
C17
C18
C29
C14
C30
C9
C11
C6
L4
L3
L8
L5
L6
C1
R7
R5
R1
C13
C10
C32
R6
C2
C4
C33
C20
C34
C12
C3
L9
L1
L2
1
5
10
15
16
20
25
30
IC1
C5
C21
C23
C27
C24
(SIDE A)
MAIN BOARD
SRF-H11
BCE
-2
-1
CV1
4
CV1-2
CV1-3
CT1-2
CT1-3
CT1-1
CT1-4
10
µF/16V
frequency counter
1
µ
F
FM
wire antenna
input
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