- 62 -
Troubleshooting
●
No Audio Output
SLO
T - SELECT
IC9002
ASS'Y CGMOTHER
K90Q
K8A
K8J
ASS'Y_MAIN
13
3
IC5004
IC1801
I/O
EXPANDER
3
5
K90C
K90E
L
R
MONIT
OR OUT
ASS'Y_RS232C
K38H
L
R
L
R
Terminal board
- DVI
SLOT_1
AU
DIO INPUT
33
122
K90D
K90F
K80H
L
R
Terminal board
- Component
SLOT_2
A
UDIO INPUT
33
122
K10H
L
R
Terminal board
- AV
SLOT_3
A
UDIO INPUT
33
122
K3101
L
R
Terminal board
- DSUB-15
SLOT_4
AU
DIO INPUT
33
122
K71H
L
R
1
7
37
36
38
3
1
L
R
SP_OFF
Audio signal processing circuit
- Check Point -
Terminal board DVI, Component, AV, and
DSUB-15.
1. Check that the R and L signals are correct.
Pins122(R) and 33(L).
K80H, K10H, K3101, K71H.
Assembly CG-Mother
1. Check that the R and L signals are correct.
Pins 3(R) and 13(L) of IC9002.
Assembly Main
1. Check that the Vcc-voltages are correct.
2. Check that the L and R input signals are cor-
rect.
Pins 5(L) and 3(R) of IC5004
3. Check that the IC5004 output signals are cor-
rect.
Pins 7(L) and 1(R) of IC5004.
Assembly RS232C
1. Check that the L and R output signals are cor-
rect.
●
No Power
6.35V
6.35V
S3.3V
16V
9V
-6V
S9.6V
S6.35V
5VB
16VA
-5V
16VB
FAN_A24V
FAN_A24V
FAN_B12V
FAN_B12V
K66A
K66E
K66F
K66D
K66G
UNIT_SUB-POWER
FAN-ON/OFF
FAN-A ADJ.
FAN-A ADJ.
FAN-A ADJ.
PWR-SW
SCL/SDA
SCL/SDA
Q23
Q2
Q9
Q6
IC6
I/O EXP
IC5
I/O EXP
IC1
CONTROL
IC2
CONTROL
Q12
Q14
Q16
Q18
Q1
Q5
FAN-ON/OFF
FAN-ON/OFF
FAN-B ADJ.
FAN-C ADJ.
FAN_C12V
-6V
16V
FAN_C12V
FL
FL
FL
6
2
1
3
2
3
2
1
3
2-3
5-6
7
9
23
15,16
28
9
1
13
19
25
27
29
FAN-B ADJ.
FAN-C ADJ.
TO
MAIN BO
ARD "K8D"
FR
OM PO
WER BO
ARD
"K6D"
FR
OM SWITCHING PO
WER SUPPL
Y
"A902"
1
K66L
PF
25V
TP7614
TP7611
PWR-SW
PWR-SW
Check the Unit_ Sub Power.
Содержание LC-XT4E
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Страница 112: ...112 75 88 88 88 88 73 74 76 60 59 65 64 66 90 67 66 62 91 Fig 89 Fig 90 Mechanical and Optical Parts...
Страница 115: ...115 114 115 102 103 114 119 118 122 117 121 112 125 Fig 95 Mirrors Fig 96 Lenses Mechanical and Optical Parts...
Страница 116: ...116 71 71 116 116 116 116 111 111 110 110 79 82 81 78 Fig 97 MIrrors Fig 98 Optical filters Mechanical and Optical Parts...
Страница 159: ...159 MEMO...
Страница 160: ...LC XT4U E APR 2006 2006 Eiki International Inc A key to better communications...