Camera Picture Faulty - Canon ZR70 MC A Service Manual

6-2 Camera Picture Faulty

<Hints>
A flow of camera picture (EE) is as below.
CCD → CAC P.C.B. → MAIN P.C.B. (MACS → VIC3→VIF2) → JACK P.C.B.
<Check Points>
1) Check of lens reset (p.3-11)
If no camera picture appears, check if the lens has been reset by means of the service mode. In case of NG, check the lens.
2) Check of blue back output
If the blue back is confirmed, the signal line subsequent to VIC3 is considered to be OK.
3) Check of MACS generation signal (white 100% or color bar) (P.3-10)
The white 100% or color bar signals are generated by the MACS on the MAIN P.C.B. In the service mode, if the output of the white
100% or color bar signal is attained, the signal line subsequent to MACS is considered to be OK.
4) Check of CCD output
The CCD output is sampled by IC1002 (TG/CDS/AGC/AD). Check the signal.
5) Check by command particular to camera (p.3-10)
Check the operation of White balance, AGC, IRIS, etc. in the service mode.
CHAPTER 3. INFORMATION FOR REPAIR · SERVICE HINTS
3-18
ZR70 MC A, ZR65 MC A, ZR60 A