Zenith C32V23 - 32" Flat-Screen Integrated HDTV, Service Manual

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PV154 - 923-03497
3-18
AB - SERVICING
SERVICING
No Horizontal or Vertical sync.
Check sinc. on Y
at +C2719.
Check timings and
levels of H sync. on
RM2733 and V sync. on
RM2734
Check Digital
Board
Check 5V sw1 on +C2710,
Check 5V SYNF on +C2723,
Check 5V sw2 on +C2730,
Check Y on Q2708 Emitter,
Check CRY2201 oscillation,
Check IIC.
Check sync. on Y
at +C2705
Check timings and
levels of H-DRV
on Q2204 Emitter and
of V-DRV(+/-)
on CN2G4-7,CN2G4-6
connector.
Check Q2700 and
peripherals
components.
Check CXA2151AQ IC and
peripherals components.
Check Deflexion
Board.
No
No
No
No Yes
Yes
Yes
Yes