14
SX68JF100
14-1 14-2
TROUBLE SHOOTING TABLE (Continued)
Circuits to be checked:
» Power circuit.
» Micon circuit.
» Protector circuit
» Peripheral circuit of
Bus Line.
Check L1002 and
the sub power
circuit consisting
IC2700, D2700
and etc.
Check the power circuit
consisting of IC1702, T1700
and sub power circuit
consisting of IC2700, D2700
and etc.
Normal
Check F2700.
Replace the Fuse.
Is the Fuse again blown out?
Does 5V appear at pin (33) of IC1000?
Blown out
A
No
No Yes
Yes
Check IC1000,
Q1008, Q1750,
Q1751 and
IC1002.
TROUBLE SHOOTING TABLE (Continued)
B
E
2
PROM
(IC1001)
AV-SW
(IC451)
VCD1
(IC2801)
SECAM
(IC2901)
PDC
(IC1500)
DCF
(IC5461)
DEM
(IC2300)
PLL1
(TU201)
VCD2
(IC4902)
PIP
(IC4901)
Lights up
turn off
SSP
(IC2302)
Other pattern: Other I
2
C bus control ic or unit.
(It has SDA and SCL PORT.)
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