SECTION 3
ELECTRICAL ADJUSTMENT
3.1 PRECAUTION
3. Tools required for adjustments
1. Precaution
Both the camera and deck sections of this model needs aTorque Driver1Bit2
YTU94088YTU94088-003
personal computer for adjustment except simple adjustment
with potentiometers. If some of the following parts is replaced
for repair or other reason, the repaired set must be adjusted
with a personal computer.
Y OP block
2
Y EPROM (IC1003 of MAIN board)
Y MONITOR
TweezersChip IC Replacement Jig
234
Y EPROM (IC7603 of MONITOR board)P-895PTS40844-2
In the event of malfunction with electrical circuits, trouble-
shooting with the aid of proper test instruments most be done
first, and then commence necessary repair, replacement and
adjustment, etc.
1. In case of wiring to chip test points for measurement,Jig Connector CableExtension connector
56
use IC clips, etc. to avoid any stress.YTU93091BYTU94145A
2. Since connectors are fragile, carefully handle them in dis-
connecting and connecting.
3. Shortcircuit between operation un it and DECK chassis.
2. Required test equipment78Communication CablePC Cable
YTU93107AQAM0099-002
1. Color TV monitor.
2. Oscilloscope (dual-trace type, observable 100 MHz or
higher frequency)
Note :It is recommended to use one observable 300
MHz or higher frequency.
Service Support SystemAlignment Tape
910
3. Digital voltmeterYTU94057-53MC-1
4. Frequency counter (with threshold level adjuster)
5. Personal computer
INF Adjustment LensINF Adjustment Lens Holder
1112
YTU92001BYTU94087
Camera StandLight box Assembly
1314
YTU93079YTU93096A
Gray Scale ChartColor Bar Chart
1516
YTU94133AYTU94133C
Table 3-1-1
3-1 |
ACEC
