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ELECTRICAL ADJUSTMENT-2/2
< TUNER SECTION >
(LH MODEL)
1. AM Freq. Range Adjustment
L006 ....................................................................... 517kHz
TC003 ................................................................... 1750kHz
2. AM Tracking Adjustment
L003 ....................................................................... 600kHz
TC004 ................................................................... 1400kHz
3. AM IF Adjustment
Settings:
• Test point: IC001 (LA1828) 19PIN
• Adjustment location: L007
Method:
Adjust L007 so that the output level at 1400kHz
becomes maximum.
4. FM Freq. Range Adjustment
L005 ..................................................................... 87.0MHz
TC001 ................................................................. 109.0MHz
5. FM Tracking Adjustment
L004 ..................................................................... 90.0MHz
TC002 ................................................................. 106.0MHz
6. FM IF Adjustment
Settings:
• Test point: IC001 (LA1828) 19PIN
• Adjustment location: L008
Method:
Adjust L008 so that the output level at 98.0MHz
becomes balanced.
7. FM Balance Adjustment
Settings:
• Test point: IC001 (LA1828) 19PIN
• Adjustment location: L009
Method:
Adjust L009 so that the output level at 98.0MHz
becomes balanced.
(EZ MODEL)
1. LW Freq. Range Adjustment
L016 ....................................................................... 145kHz
TC005 ..................................................................... 295kHz
2. MW Freq. Range Adjustment
L017 ....................................................................... 515kHz
TC003 ................................................................... 1635kHz
3. MW Tracking Adjustment
L003 ....................................................................... 600kHz
TC004 ................................................................... 1400kHz
4. LW Tracking Adjustment
TC006 ..................................................................... 288kHz
5. AM IF Adjustment
Settings:
• Test point: IC001 (LA1828) 19PIN
• Adjustment location: L007
Method:
Adjust L007 so that the output level at 1400kHz
becomes maximum.
6. FM Freq. Range Adjustment
L005 ................................................................... 87.35MHz
TC001 ............................................................... 108.25MHz
7. FM Tracking Adjustment
L004 ..................................................................... 88.0MHz
TC002 ................................................................. 108.0MHz
8. FM IF Adjustment
Settings:
• Test point: IC001 (LA1828) 19PIN
• Adjustment location: L008
Method:
Adjust L008 so that the output level at 98.0MHz
becomes balanced.
9. FM Balance Adjustment
Settings:
• Test point: IC001 (LA1828) 19PIN
• Adjustment location: L009
Method:
Adjust L009 so that the output level at 98.0MHz
becomes balanced.
< DECK SECTION >
10. Tape Speed Adjustment
Settings : • Test tape : TTA–100
• Test point : HP1 (PHONES jack)
• Adjustment location : SFR of deck motor
Method :
Play back the test tape and adjust SFR so that the
frequency counter reads 3000Hz +90Hz, -60Hz.
11. Head Azimuth Adjustment
Settings : • Test tape : TTA–320
• Test point : HP1 (PHONES jack)
• Adjustment location : Azimuth adjustment
screw
Method :
Play back the 8kHz signal of the test tape and adjust
screw so that the output becomes maximum.
12. Bias frequncy Adjustment
L801..................................................................85kHz±2kHz
< CD SECTION >
13. FE Balance Adjustment
Settings : • Test point : IC401 PIN58 (VR), IC401 PIN 20
(FE)
• Adjustment location : SFR430
Method :
Playback the disc and adjust SFR430 so that the test
point voltage becomes 0~-10mV.
-28-
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