LG FFH-3765MVA Service Manual page 8

3. RECORD BIAS ADJUSTMENT
Deck Mode
Rec/Pause
Head
Test Tape
MTT-5511
4. TUNER ADJUSTMENT
(FM)
Item
DC Voltage
Signal Generator
(AM)
Item
AM IF
Test Tape Test Point
ERASE HEAD
MTT-5511
WIRE(PN202)
Record/Playback
and Pause Mode
Unit
Record/Playback
head
Figure 3. Record Bias Adjustment Connection Diagram
Test Point
Checker PIN TP101, 102
FM Antenna
Terminal
GND
Figure 4. Tuner(S curve) Adjustment Connection Diagram
Test Point
SPEAKER OUT
Adjustment
L203
PN202
GND
Adjustment
L106
Speaker
Unit
Adjustment
L110
- 2-2 -
Adjust for
60kHz±5kHz (Auto stop)
85kHz±5kHz(Auto Reverse)
Frequency Counter
Adjust for
0V ± 50mV
Electronic
OSCILLOSCOPE
Adjust for
OUTPUT MAXZMUM