DAEWOO ELECTRONICS DV-F882DY-C Service Manual page 9

2. PIF COIL
Adjustment Parts Checking Point
L104
• Connection Method
PIF PCB (Component Side)
minimum
GND
• Adjustment Procedure
1) Supply +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.
Measuring Equipment
TP2
#2
P102
#3
L101
TP1
L104
Z101
L103
TP2
L105
IC101
#2 #3
fc: 38.9MHz
OUT
Output Level: 80dBµV (75Ω loaded)
SIGNAL
GENERATOR
Condition of Adj.
Oscilloscope
Signal Gen
P101
L108
L109
TP3
TP4
L110
TP6 TP7
6
Input Signal
Refer to the
EE Mode
followings
CH-1
Oscilloscope