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Troubleshooting > Trouble Diagnosis
( 7 ) N o z o o m o p e r a t i o n
Does focus operate
normally?
Check the
zoom switch unit.
Check IC1301 and
EEPROM
When power
turned on:TL1336:
PULSE
TL1331-TL1334:
PULSES
IC1301-2,4,24:3V
IC1301-10,
15:7.2V
IC1301-1:PULSE
Lens unit faulty.
Zoom switch faulty.
See "(4) No zoom and
focus operation."
Check the 3V line
Check the 7.2V line
IC1201 faulty.
NG
NG
NG
OK
OK
OK
OK
NG
NG
NG
OK
OK
NG
OK
IC1301-23:
PULSE
IC1301-20:
PULSE
IC1301 faulty
IC1201 faulty.
R1215 faulty.
Q1201 faulty.
IC1201 faulty.
IC1201 faulty.
IC1201 faulty.
IC1301-5:PULSE
C h e c k t h e
c o n n e c t i o n s o f t h e
l e n s f l a t c a b l e .
T L 1 3 4 6 : 3 V
T L 1 3 4 4 : P U L S E
L e n s u n i t f a u l t y .
C h e c k t h e 3 V l i n e
C o r r e c t t h e
c o n n e c t i o n s
o f t h e f l a t c a b l e .
NG
NG
NG
OK
OK
OK
NG
NG
NG
OK
OK
OK
The test lands and components of circuit no. 1000-1099 are on the SP circuit board.
The test lands and components of circuit no. 1100-1499 are on the PC circuit board.
The test lands and components of circuit no. 1500 and higher are on the CSR circuit board.
