-60-
Chassis Block Diagrams
CHO_RXD
CHO_TXD
ON_33V
ON_33V
FAN_ERR
ON_150V
LAMP_SCI
S1.8V
S1.8V_PW
SS3.3V
S6V
IC5861
S-5V
S-5V
Q5701
D3601
3.3V_ALL
LINE FIL
TER
BO
ARD
LAMP
BALLAST
1
4
5
5
4
1
CN2
K8H
1
2
K8S
K6D
CN1
K6C
K6B
LAMP
A
C C
ORD
K6R
K8R
POWER
TEMP SENSOR
C
TEMP SENSOR
A
MAIN
IC621
P.F.CONTROL
<FA5550>
12
1
2
3
5
6
11
10
9
8
7
2
10
10
1
1
4
T651
D663/D664
D661
D662
IC671
1
PC671
ERROR AM
P
Po
wer-
On:H
Po
wer-
On:H
Po
wer-
On:H
Po
wer-
On:H
Po
wer-
On:H
Po
wer-
On:H
P-
Fail:H
Network STB
Y:
H
Eco STB
Y:
L
LAMP_DE
T
(P
ower-
On:L)
LAMP_SW (P
ower-
On:L)
PC661
PC663
IC631
POWER OSC.
<MR4010>
S-5V
S16V
S6V
ON_150V
LAMPDC_ON
POWER_SW
IC4891 NAND
S6V
S16V
S-5V
8 9
5 6
3
11
IC8821
TEMP
. SENSOR
B
<MCP9801>
(P
ANEL)
(ROOM)
(LAMP)
IC8811
TEMP
. SENSOR
A
<MCP9801>
IC8831
TEMP
. SENSOR
C
<MCP9801>
LAMP_DE
T
285
2
13
P_F
AIL
P
-F
ail:L
215
188
95
ON_50V
419
ON_16V
96
Po
wer-
On:H
ON_18V
ON_18V
347
Po
wer-
On:H
LAMP_DC_ON
89
293,212
SCL0 SD
A0
IC9882
INVERTER
IC9885
SUB CPU
SW901
S16V
FAN_A
IC7811
D3613
D8092/D8093/D8094
D591/D592
2
Q5830
S1.2VSI
IC8092
Q7081
3.3V
D5625
3.3VGAM
D7081
S3.3VSI
Q3582
IC5621
3.3V_MCU
IC5821
S5V
IC5602
15.5V_PNL
ON_50V
FAN_B
IC7841
IC592
ON_16V
Q5700
D3614
FAN_C
D3644
12V
IC5542
D3602/D3611
ON_33V
POWER_SW
POWER_SW
POWER_SW
K6A
S2.5V_PW
S3.3V
IC5841
SW902
Thermal
fuse
Lamp
Cov
er SW
1.0V
IC301
SCALER
S3.3V
A_PW
S3.3VD_PW
FAN_SW1
D5602
F/B
RL601
Q5704
POWER_SW
Power supply & protection circuit