C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-41
02.9631.0010
CONFIDENTIAL
15 Jan 98
3.2.2.10 Improper Tilt Response
Step 1.
Open electronics chassis.
Step 2.
At motherboard, ensure good yoke cable connection.
Step 3.
Remove head assembly covers.
Step 4.
At yoke termination board, ensure proper connection.
a. 5-pin connector from TILT header marked TILT ENC.
b. 4-pin connector from TILT header marked TILT.
Step 5.
If symtom persists, replace CIB with known good PCB.
Step 6.
If symptom persists, replace LVS. Refer to Low Voltage
Supply Removal and Replacement paragraph.
Step 7.
If symptom persists, replace tilt mechanism. Refer to Tilt
Mechanism Removal and Replacement paragraph.
Step 8.
If symptom persists, replace yoke cables. Refer to Yoke Cables
and Lamp Wire Removal and Replacement paragraph.
3.2.2.11 Improper Pan Response
Step 1.
Open electronics chassis.
Step 2.
At motherboard, ensure good pan cable connection.
Step 3.
Replace CIB with known good PCB. Refer to Control
Interface PCB Removal and Replacement paragraph.
Step 4.
If symptom persists, replace LVS. Refer to Low Voltage
Supply Removal and Replacement paragraph.
Step 5.
Access pan drive assembly. Refer to Pan Drive Assembly
Removal and Replacement paragraph.
a. Check pan mechanism MTA connector. Ensure good
connection.
b. Ensure that belt is not damaged or loose.
c. Ensure that driven pulley is not worn or damaged.
d. Replace pan drive assembly as needed.