Clarion PN-2940S-A, Руководство по обслуживанию

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PN-2940S-A,
S-B,C,D,E,F
- 3 -
TROUBLESHOOTING
No power
Check
B/U, ACC
OK
NG
Check
the operating key
switch
Confirm to circuit block of IC9
Confirm to the voltage value of
circuit line of B/U :
TP102, TP4, D4, IC4, TP11
circuit line of ACC :
Q10, TP10, TP2, D14, D15,
Q22, TP43
Heden detection :
R47, R48, TP31
circuit line of RESET :
IC8, TP47
Confirm to the voltage value of
TP2 to TP22, FPC and connector
on Switch PWB
TP50 to TP74,
NBUS Q8 ,Q13, Q15, Q16, Q17
on Main PWB
NG
Check
the system starts
by POWER ON
NG
OK
OK
Confirm to the voltage value of
Power on switch: S419, TP15
on Switch PWB
TP50 on Main PWB
Sys on REQ: TP22, Q313, Q302,
TP101
Power on
No sound CD
OK
OK
NG
Check
the power of
CD mechanism
NG
OK
OK
Check
the waveform of
10pin of J1
( TP111 )
Check
the operating key
switch
Check
the communication line
of CD mechanism
NG
Check
the operate of
CD mechanism
Problem of CD mechanism
NG
Confirm to
connection of CD mechanism
NG
OK
Confirm to the voltage value of
TP2 to TP22, FPC and connector
on Switch PWB
TP50 to TP74,
NBUS Q8 ,Q13, Q15, Q16, Q17
on Main PWB
Confirm to the voltage value of
ACC9V: Q5,D5,Q4,Q3,D3,TP110
VDD3.3V: TP113
Confirm to the voltage value of
I2C: TP83,TP84,TP85,TP86,TP88
Confirm to
the output circuit of SPDIF
IC1, L4, R26, Q6, Q7, FIL4, L102
Not lighting LED
OK
OK
NG
Check
the Illumi control
Check LED
( D401 to D427 )
NG
OK
Check
B/U, ACC
Check
IC1, IC2
on Switch PWB
NG
Confirm to the voltage value of
TP33, TP34, Q30, Q31, Q32, Q9,
Q12, Q14, TP92, TP93,
TP23 to TP29
on Main PWB
Confirm to IC1, IC2
on Switch PWB
Confirm to the voltage value of
circuit line of B/U :
TP102, TP4, D4, IC4, TP11
circuit line of ACC :
Q10, TP10, TP2, D14, D15,
Q22, TP43
Heden detection :
R47, R48, TP31
circuit line of RESET :
IC8, TP47
Not operating key switch
OK
OK
NG
Check
ES key switch
NG
Check
B/U, ACC
Confirm to the voltage value of
NBUS Q8 ,Q13, Q15, Q16, Q17
on Main PWB
Problem of IC9
Confirm to the voltage value of
circuit line of B/U :
TP102, TP4, D4, IC4, TP11
circuit line of ACC :
Q10, TP10, TP2, D14, D15,
Q22, TP43
Heden detection :
R47, R48, TP31
circuit line of RESET :
IC8, TP47
Confirm to TP2 to TP22
on Switch PWB,
FPC and connector,
TP50 to TP74 on Main PWB