DAEWOO ELECTRONICS DV-F952N, Service Manual

Page: 15 / 62

4. 5.5 (6.0) MHz SOUND
• Connection Method
• Adjustment Procedure
1) 5V DC to Pin No.3 GND to Pin No. 1 of P101.
2) Connect the signal generator output to TP3 and GND to TP1.
3) Connect the oscilloscope to TP4.
4) Adjust L109 to obtain the maximum level of TP4.
15
97P651111A
P102 P101
TP1
CH-1
Oscilloscope
SIGNAL
GENERATOR
GND
OUT
fc: 6.0MHz (I)
5.5MHz (B/G)
fm: 1KHz (50kHz FM MODULATION)
Output Level: 100dBµV (75
Ω
loaded)
L109
#3
R103
J1
L104
L105
Z101
C107 C106
IC101
L103
TP2
J4
C115
J19
IC102
L108
J7
J14
J12 J13
J15
C181
D101
R163
L112
X102
30
27
D102
C153
C182
C176 C178
TP4
J11 J10
J9 J8
IC104
J6
TP3
Adjustment Parts Checking Point Measuring Equipment Condition of Adj. Input Signal
L109 TP4
Oscilloscope
EE Mode
Refer to the
Signal Gen followings