TM9-4935-481-14-1
C3
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
+ 14 VDC Regulators
64
DMM
Adjust A14-R7 to +5.000 0.001 Vdc.
52
MCP
SELECTOR A switch to F19.
53
DMM
Adjust R8 to +16.50 0.05 Vdc.
65
MCP
SELECTOR A switch to I-9.
Check A1A26-VR1.
66
DMM
Adjust A14-R22 to -5.000 0.001 Vdc.
54
MCP
SELECTOR A switch to F20.
67
MCP
SELECTOR A switch to I-7.
55
DMM
Adjust R9 to -16.50 0.05 Vdc.
68
DMM
Adjust A14-R16 to -2.500 0.001 Vdc.
Check A1A26-VR2.
69
MCP
SELECTOR A switch to I-6.
70
DMM
Adjust A14-R12 to +2.500 0.001 Vdc.
NOTE
Horizontal Wire Simulator (645-839)
R8 and R9 are located on the
A5 (10275146) and A6 (10275149)
A25 Assy mounted underneath the
71
Return all switches to the initial switch settings, leaving the
slot for the Counter in the
MAIN POWER and DMS switches ON.
front panel assembly
72
MCP
DMM INPUT switch to DMM INPUT.
73
PPE
FUNCTION TEST switch to INT-CLK.
74
PPE
Momentarily actuate TEST START switch.
75
MCP
Connect DMM probe to A5-TP4 (ORN).
76
DMM
Adjust A5-R23 to -6.182 0.001 Vdc.
77
Remove the probe from A5-TP4 (ORN) and connect it to A5-TP5 (YEL).
78
DMM
Adjust A5-R40 to +0.8820 0.0001 Vdc.
79
PPE
SEQUENCE switch to AUTO 2.
Master Clock and Voltage Reference (391 06) A14 (12_75092)
80
ITP
INTERNAL TEST switch to 1.
56
Return all switches to the initial switch setting, leaving the
81
Remove the probe from A5-TP5 (YEL) and connect it to A5-TP3 (RED).
MAIN POWER and DMS switches ON.
82
DMM
Adjust A5-R16 to 0.0000 0.0002 Vdc.
57
TP
Momentarily actuate the TEST START switch.
83
Remove the probe from A5-TP) (RED) and connect it to A6-TP2 (BRN).
58
MCP
DMM INPUT switch to DMM INPUT.
84
DMM
Adjust A5-R12 to +0.7660 0.0001 Vdc.
59
Connect the DMM pos probe to A14-TP1 (BLK),
Check A1S33-A14 and A1S19-C6
60
DMM
Adjust A14-R4 to -8.250 0.005 Vdc.
61
Remove the probe from A14-TP1 (BLK).
62
MCP
DMM INPUT switch to SEL A.
63
MCP
SELECTOR A switch to I-8.
3-62