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AFT Adjustment
~.—
L:
15.5V
c
DC (AGC)
"g
Output
probe
:
Input probe(a side)
g
DC 12V(J!G-A)
o
DC 5V
DC 9V(JIG -B)
Sweep ATT
:
Output
probe
:E
Oscilloscope
g
SG. out put
~
Damping resister
JIG-A
Adjustment
Waveform
AGC Volt Alignment
Resonance
Frequency
Adj.
R364(IC 351-1 Pin)
R364(IC 351-1 Pin)
TP - C(C1 15+)
TP-C(C115+)
Tuner-TP
Tuner-TP
TP - L(R1 20)
TP-J(R191)
Q293Base to GND
Q293B to GND
R700
R700
IC 701 pin 3 and 4.
IC 701 pin 3 and 4.
20dB
20dB
Side- b
Side-b
100mV/div.
lVldiv.
20 mV rms(Att. 20dB)
TP-D
b-side(GND)
b-side(GND)
Fix the AGC voltage
Keep AGC voltage which is
when the overall
wave
adjusted
at
AGC
volt –
form
level
is adjusted
alignment,
and adjust T131
at 1.OV p-p.
for38.9 MHz marker isjust
on the reference line.
l~-p
*HZ''"'")
ote:
PAL only modeldoesnothaveQ293 (SW.TR.) . This connection isnotnecessaty for
AL only model.
MAIN UNIT
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IPRO13)
SELECT
UP
OWN
DC 5V
~-f=—~
,,
Q?S5
B
U
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E AO
140N
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CPU
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7
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~
VR211
o
'~
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—
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——
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