1960 SERVICE MANUAL
3. ADJUSTMENT EQUIPMENT
a. Volt-ohm-A meter (Sanwa FD-750C or equivalent).
b. 30KV high voltage probe (HP34111 A).
c. Oscilloscope (TEK2235 or equivalent).
d. White balance adjuster (Minolta Color Analyzer II).
e. Signal generator (IBM PC with VGA card or equivalent).
f. Screwdriver.
4. SWITCHING POWER SUPPLY - Regulator Adjustment
(PWB1001)
The regulated B+ control has been preset in the factory and needs no
adjustment. However, if any repairs are made on the equipment, the following
readjustment procedures are recommended.
a. Allow the monitor to warm-up for about 5 minutes.
b. Apply the VGA (31.468 KHz) signal to the monitor.
c. Connect a DC meter to TP1 (on the main PCB), and adjust VR831 for
86V DC.
d. If a fuse is broken during adjustment, remember to replace it with the exact
same type of fuse.
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