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– 8 –
KF-60DX100
RM-Y910
6. Self-Diagnosis function operation
3 : Lamp Cover
When lamp cover SW is opened then pin
4
of CN1908 on the A board is high, LCD Engine
µ
-com (IC9502)
detects it and make turn off the lamp.
4 : FAN Stop
When FAN1 or FAN2 is stopped then pin
8
or
q;
of CN1908 on the A board is high, LCD Engine
µ
-com
(IC9502) detects it and make turn off the lamp.
5 : Lamp Driver
When lamp is not turned on then pin
wl
of LCD Engine
µ
-com (IC9502) is high, checks pin
wk
of LCD Engine
µ
-com . If pin
wk
is low, it is judged no High Voltage.
6 : Low B
5 V line failure.
9 : Audio
When DC is appeared by audio amp failure at speaker line.
Then it is detected by MAIN
µ
-com (IC9004) and it turns off the main power.
LAMP : Lamp error
When lamp is not turned on then pin
wl
of LCD Engine
µ
-com (IC9502) is high, checks pin
wk
of LCD Engine
µ
-com. If pin
wk
is high, it is judged lamp is burned out.
Self-Diagnosis block diagram
24 AUDIO PROT
43 LOW B ERR
D1902
CN1908
D1901
M board
A board
T board
IC9004
MAIN CPU
+5V DETECT
LAMP
DRIVER
LAMP
HV DETECT
FAN1
FAN2
IC9502
LCD ENGINE
+5V
LAMP DRV
HV DET
LAMP PROT
28
FAN PROT 24
LAMP PROT 29
3. Lamp Cover
LAMP COV
HV DET
LAMP PRT
FAN1 PR
FAN2 PR
4. FAN Stop
9. Audio
6. Low B
LAMP COV 27
Q9505,9507-9509
S8001
DC DETECT
Q1211, 1213,1215
IC9005
AUDIO AMP
IC1203, 1204
4
12
3
8
10
Содержание GRAND WEGA KF 60DX100
Страница 88: ... 87 KF 60DX100 RM Y910 H2 USER CONTROL H2 BOARD Component Side H2 BOARD Conductor Side ...
Страница 137: ... 136 KF 60DX100 KRM Y910 Sony Corporation HNC HVC Visual Products East Asia Dep 9 965 440 02 English 2004HR05 1 2001 12 ...
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