ADJUSTMENT <TUNER / DECK / CD>
< RADIO SECTION >< CD SECTION >
1. Focus Bias Adjustment
1. AM Frequency Range Adjustment
" Test Point: TP5 (LCH), TP6 (RCH)Make the focus bias adjustment when replacing and repairing
the optical block.
" Adjustment location: L006, TC003
" Method:
Oscilloscope
(DC range)L006 ....................................................................... 517kHz
TC003................................................................... 1750kHz
2. AM Tracking Adjustment
" Test Point: TP5 (LCH), TP6 (RCH)
+" Adjustment location: L003, TC004
" Method:TP3 (RF)
L003 ....................................................................... 600kHz-
TP4 (VREF)TC004................................................................... 1400kHz
3. AM IF Adjustment
" Test Point: TP5 (LCH), TP6 (RCH)1) Connect an oscilloscope to the test point TP3 (RF) and TP4
" Adjustment location: L007(VREF).
" Method:2) Turn on the power switch.
L007 .......................................................................3) Insert test disc TCD-782 (YEDS-18) and play back the second455kHz
composition.
4. FM Frequency Range Adjustment4) Adjust SFR430 so that RF signal of the test point TP3 (RF) is
" Test Point: TP5 (LCH), TP6 (RCH)MAX and CLEAREST.
" Adjustment location: L005, TC001
" Method:
L005 ........................................................................87MHz
TC001....................................................................109MHz
MAX
5. FM Tracking Adjustment
" Test Point: TP5 (LCH), TP6 (RCH)
" Adjustment location: L004, TC0020V
" Method:EYE PATTERN
L004 ........................................................................88MHz
must be CLEAR and MAX
TC002....................................................................108MHzVOLT / DIV: 200mV
TIME / DIV: 0.5?s
6. FM IF Adjustment
" Test Point: TP5 (LCH), TP6 (RCH)
" Adjustment location: L008, L009
" Method:
L008, L009 ...........................................................10.7MHz
< TAPE RECORDER SECTION >
1. Bias Adjustment
" Test tape: TTA-630
" Test Point: TP2
" Adjustment location: L801
" Method:
L801 ..............................................................?2kHz85kHz
2. Azimuth Adjustment
Condition: Y Test tape: TTA-320
Y Test point: PHONE JACK
Y Adjustment location:Azimuth adjustment
screw
Method: Play back the test tape and adjust the screw so that the
output is maximum.
� 24 � |
ACEC
