4 - 7
Troubleshooting > Trouble Diagnosis
(6) No focus lens operation
Does zoom
operate
normally?
When power
turned on:
TL1345:Pulse
TL1347 to1350:
Pulses
IC1302-2,4,24:3V
IC1302-10,15:7.2V
TL1312:Pulse
IC1302-23:Pulse
IC1302 faulty.
IC1201 faulty.
IC1201 faulty.
IC1201 faulty.
Check the 7.2V (VM)
line
Check the 3V line
Lens unit faulty.
See "(4)No zoom and
focus operation."
IC1302-5:Pulse
NG
NG
OK
NG
NG
OK
OK
NG
OK
OK
NG
NG
NG
OK
OK
OK
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 .
I C 1 2 0 1 f a u l t y .
R 1 2 1 4 f a u l t y .
Q 1 2 0 1 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
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.
IC1201 faulty.
IC1302-20:Pulse
NG
OK
