5.11. SBU ADJUSTMENT
5.11.1. Replacement
First, remove the rear cover, then remove the NCU [A], the rear bracket [B],
and the SBU [C].
Note: After SBU replacement, the following adjustment procedure must be
done.
5.11.2. Tools Required
•
Scan line adjustment chart: P/N H5159300
•
200 dot-per-inch test pattern: P/N H0829020
•
Test lead: P/N H5159301
•
SBU adjustment knobs: P/N H0129300
5.11.3. Preparation
1. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizon-
tal).
2. Connect the test lead to CN 6 on the MFCE.
3. Connect the oscilloscope probe to pin 2 (blue wire) and the ground to pin
4 (black wire)
4. Clean the white pressure plate with a soft cloth and alcohol.
5. Light the xenon lamp (see section 4.1.15)
[C]
H515R509.wmf
A: NCU (3 screws)
B: Rear Bracket (3 screws)
C: SBU (2 screws)
Replacem
ent
Adj
u
s
December 21st, 1995
REPLACEMENT AND ADJUSTMENT
SBU ADJUSTMENT
5-35
