LG GoldStar GSW-9320 Service Manual page 5

| GSW-9320
2. MOTOR SPEED ADJUSTMENT
t Deck
ie a Test tape | Test point Adjustment Adjust for Remark
stage mode
Deck A: High speed.
High Deck A: SR604 Dubbing condition.
speed | Playback) MTT-111 | 20A, 208) no B: sreog | SkH2Z+60HZ) 5k B: Earth the
base of TR627.
Normal Deck A: SR603 Restore the base of
Playback | MTT-111 20A, 20B Deck B: SR601 3kHz + 30Hz T R627.
Perform the high speed adjustment first and then the normal speed adjustment
Head 20A, 20B
Playback Mode Frequency Counter
Test Tape
MTT-111
Record/Playback
head
Figure 5 Motor Speed Adjustment Connection Diagram
3. PLAYBACK LEVEL ADJUSTMENT
Test tape Test point Adjustment Adjust for
Deck A: SR102, SR202 S80mV + 1dB
Playback MTT-150 20A, 20B Deck B: SR121, SR221 a
After you adjust to being associated with deck A and B, repeat the adjustment several times.
Electronic
Voltmeter
Head
Playback Mode 20A, 20B
Test Tape
MTT-150
Record/Playback
head
Figure 6 Playback Level Adjustment Connection Diagram
4. DUBBING LEVEL ADJUSTMENT
Test tape Test point Adjustment Adjust for
Playback MTT-150 SR101,
R/P and Pause | Blank tape
is Beare
SR201
o80mV + 1dB
Deck mode
Normal s peed
switch ON.