6
RX
D-M9
09/LS
-M9
09
1. POWER (SMPS)
OK
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
Replace the fuse
Check short of P9701,P9702 line
Replace IC901,902
Check the FUSE
F901
NO
Check BD901,LF901,902
Check
the DC V of C905
if DC V is over
450V
NO
Check short of P9702 line
Check the
DC V of C981,C945.
If DC V is 6.1V
NO
Check short of P9701 line
Check the
DC V of C950,C951
If DC V is in
22V
Check the
DC V of C909,C903,C921
If DC V is in 14~19V
And it is steady
Check IC901,902
POWER (SMPS)
K
C
E
H
C
T
R
A
P
K
K
V
.
3
S
N
E
S
-
P
.
2
NO
Check power circuit
Troubleshooting
YES
P-SENS
Check
the PIN6 of P9702
if DC V is over
5.6V
YES
OK
NO
Check power circuit
Troubleshooting
YES
VKK CHECK
Check
the PIN3 of P9702
if DC V is
over -28V
YES
OK
4. MICOM PART CHECK I
OK
OK
NO
NO
NO
Replace IC101
(KIA7042)
Check if IC101 of output
voltage is over4.3V
YES
YES
YES
YES
YES
Check voltage of
IC100(LC87Fxxx)PIN4
YES
Refer to SMPS
troubleshooting.
MICOM PART
CHECK I
Check P-SENS
(P7904_PIN6)
NO
Check both
End voltage of IC101
(KIA7042)
Check
If input voltage of
IC101 is over 5V
Check the
Periphery of IC101
(KIA7042)
TROUBLESHOOTING
Note: This shooting is the original circuitry so there are some different points from RXD-M909.
