30
VL-Z400S-T/H-T
VL-Z500S-S/H-S/E-T/E-S
3. Adjustment of shutdown
Mode
VCR ADJ mode
Adjusting
1) Set a recordable tape and select the camera mode.
method
2) Press "CONTINUE"
→
"TEST SEL" on the adjustment remote control to enter the TEST mode (T-01 flashing).
3) Select T-03 with the FF and REW keys and press "PB" key.
4) Adjust the power supply voltage so that TL904(+) becomes 6.00V
±
50mV as viewed from TL900(-).
5) Press the "Display change" button on the main unit. Turn OFF the power.
Examples
· Replacement of microcomputer (IC701), Regulator (IC704) and E
2
PROM (IC705)
1. PCO D/A-Y adjustment
Measurement point
TL1474 (connected to oscilloscope)
Address
VCR ADJ 566
Mode
EE mode
Procedure
1) Connect the AVS cable and then connect it to the monitor (TO).
2) Call the adjustment mode (V-ADJ).
3) Set the address to "566", and call the date. (100% white signal is output.)
4) Vary the date with the FF and REW keys to set the signal appearing at TL1474 to 1.0Vp-p
±
0.05Vp-p.
Examples
• During IC705 replacement. • During IC4401 replacement. • During IC1401 replacement.
1.0
±
0.05
2. PCO D/A-C adjustment
Test point
TL1475
Address
VCR ADJ 567
Mode
EE mode
Procedure
1) Connect the AVS cable and then connect it to the monitor (TO).
2) Call the adjustment mode (V-ADJ).
3) Set the address to "567", and call the data.
4) Vary the data with the FF and REW keys to set the signal appearing at TL1475 to 0.64Vp-p
±
0.05Vp-p.
Examples
• During IC705 replacement. • During IC4401 replacement. • During IC1401 replacement.
0.64
±
0.05
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ADJUSTMENT OF VIDEO I/O CIRCUIT SYSTEM
(Wiring board diagram: Sub Side A)
TL601
FB600
TL600
C602
VA603
VA602
TL602
C601
VA600
VA601
C600
R603
TL603
R7427
R7429
R7428
R7426
C2906
R2915
R2914
R604
C2905
TL1477
1
CP1
L2901
CP2
R2901
TL1472
CP3
TL1475
TL1471
TL1474
TL1476
TL1473
TL1470
TL1474
PCO D/A-Y ADJ
TL1475
PCO D/A-C ADJ