KX-VC500CX - Panasonic PBX Service Manual Supplement (repair manual). Page 12

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12
KX-VC500CX
Replace all the parts of the unit
Replace IC1303
Failure resolved?
Replace IC406
Failure resolved?
No
Yes
No
Yes
No
Yes
No
Check 1.25V power voltage 
TP1345 [V1R25D_P2]
 = 1.25V
Yes
Check 1.2V power voltage
TP1347 [V1R2D_ETC]
 = 1.2V
Yes
Check F1401 *14
Is it open?
Replace F1401
Failure resolved?
Yes
Check 11.25V power voltage
TP1401 [11.25V MIC]
 = 11.25V
Replace IC1405
Failure resolved?
No
No
No
*
14  Turn off a power when check the FUSE.
A
Check 1.8V power voltage
TP413 [1.8V ADV1] = 1.8V
No
Yes
Check 5V power voltage
TP702 [5V HDMI-TX] = 5V
Replace IC702
Failure resolved?
No
Yes
No
Yes
Yes
Yes
Replace IC1308
Failure resolved?
No
Yes
No
End
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