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Front TC : INT
MODE : TAPE
3. USER MENU Setting
012 SYS FORMAT : 422
013 PB FORMAT : MANUAL
600 INT SIG : CB (color bar)
Note:
Do not escape from the service adjustment menu to direct USER MENU with DIP-SW1
In this case, a set value is not renewed.
A normal picture is not displayed when 25M tape is played back in 50M mode. (SYS FORMAT :
422 and PB FORMAT : MANUAL position)
6.6.4. PLL Lock Confirmation (50M Mode, PB Lch)
Board
Specification
Test Point
Adjustment Point
Input Signal
Mode
Tape
M.EQ
1. Open the service Menu and select item B00 EQ ED ADJUST Menu.
2. Measure the voltage at TP603 in the Eject mode. ( V eject )
3. Playback a 25M Master Tape. (A picture is not appeared on the
monitor. )
4. Set the items in the Service MENU as follows.
B01 PB PLL PHS L : 10
B02 PB PLL SL L : -60
B41 VITERBI MODE : OFF
B42 PB MODE : PB H
5. Measure the voltage at TP603.( V play )
6. Adjust B31 PB PLL VCO L so that the voltage is in the specification.
7. Confirm the red segment is not displayed on the Error Meter about
L1 and L2.
8. If it is not, adjust B01 PB PLL PHS L and B02 PB PLL SL L and
return to the step 6.
RF EQ
V play - V eject <= ±
0.05V
TP603
Service Menu
Playback
VFM3580KM (Color Bar
Portion)
Oscilloscope
102
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