DAEWOO ELECTRONICS DV-F952N, Service Manual

Page: 7 / 62

2. PIF COIL
• Connection Method
• Adjustment Procedure
1) 12V to pin No.1, and GND to Pin No 2. of 102
2) Connect the signal generator output to pin 3 and GND to pin 2 of P102.
3) Connect the oscilloscope to TP2.
4) Adjust L104 to obtain the minimum DC voltage of TP2.
7
P102
L104
L105
IC101
#3
#2
L101 TP1
L108
TP2
L103
Z101
TP6 TP7
IC102
TP3
L109
P101
IC103
L110
TP4
CH-1
Oscilloscope
GND OUT
minimum
#3
PIF PCB (Component Side)
SIGNAL
GENERATOR
fc: 38.9MHz
Output Level: 80dBµV (75
Ω
loaded)
#2
Adjustment Parts Checking Point Measuring Equipment Condition of Adj. Input Signal
L104 TP2
Oscilloscope
EE Mode
Refer to the
Signal Gen followings