-8-
F3JLV
DC 15.0V
AGC voltage (4.3-4.5V)
Output probe (Side b)
Input probe
DC5V
JIG-A
Sweep ATT
0dB=176mVrms/75
Scope
System
SETTING
IC651-pin1
IC201-pin48
IC201-pin45
IC201-pin7
Q681-E
IC201-pin46
20dB
100mV/div
L
Adjustment
By using T141,
adjust "P" to be
maximum
amplitude.
How to select SYSTEM L or
L’.
1. Before power on, connect
IC801-pin11 to GND.
2. Select L or L’ acording to
the table
Waveform
Notes
CIRCUIT ALIGNMENT
VIF alignment (DETECTOR ADJ.1)
VIF alignment (DETECTOR ADJ.2)
0.002
µ
F
75
Ω
1k
Ω
a
b
10k
Ω
Input probe
Output probe
P
SIF alignment (FM Detector-1)
DC 12V
AGC voltage (DC5V)
Output probe (Side a)
Input probe
Jig-A
Sweep ATT
Scope
Marker Frequency
SETTING
K38H2-pin3
IC3852-pin13
IC3852-pin5
IC3852-pin17
IC3852-pin6
10dB
100mV/div
38.9MHz
Adjustment
By using T3853, adjust "P" to
be 38.9MHz ±100KHz.
Waveform
P
0.01uF
103P
Jig-A
L
L’
Q832- C GND Short Open
DC 15.0V
AGC voltage (4.3-4.5V)
Output probe (Side b)
Input probe
DC5V
JIG-A
Sweep ATT
0dB=176mVrms/75
Scope
System
SETTING
IC651-pin1
IC201-pin48
IC201-pin45
IC201-pin7
Q681-E
IC201-pin46
20dB
100mV/div
L’
Adjustment
By using VC141,
adjust "P" to be
maximum
amplitude.
How to select SYSTEM L or
L’.
1. Before power on, connect
IC801-pin11 to GND.
2. Select L or L’ acording to
the table
Waveform
Notes
P
L
L’
Q832- C GND Short Open
,
