Panasonic PT-VX400U

-62-
Chassis Block Diagrams
Q3601
D3621
D3802
D3622
SW901
LAMP
COVER
SW
LAMP
BALLAST
BOARD
K8N
K8M
FN901
FN902
1
2
1
2
D3626
K8K
K8G
K8Q
K7801
FN904
FN906
1
2
D3623
K8L
FN903
1
2
1
2
1
S16.5V
FANA
FANB
TPFANA
Q7813
12
7
6
5
1,14
3
2
1
3
4
8
IC7811
<TPS54286>
IC9001
DIMMER CONTROL
<LE308030F0A>
IC7841
SUB POWER
BOARD
Q7864
Q7842
Q7805
Q7807
P_FAIL
POWER_SW
D3613
FANC
D3614
K8J
FN905
1
2
D3627
MAIN BOARD
IC301
SCALER
<PW190>
Power-On:H
IC9886
INVERTER
1
2
4
190
420
FAN_SW3
349
Power Error: On
Error: H
P_Fail: H
SIGNAL/MODE
POWER-ON STAND-BY
H L
NORMAL ERROR
H L
FAN_SW1
FAN_SW2
P_FAIL
P_FAIL
FAN_ERR
TPFANC
TPFANB
K8S
K8H
23
2
1
1
SCIOUT
30
FAN_CON_A
373
FAN_CON_C
128
215
FAN_CON_B
Q7814
FAN_SW1
FAN_SW2
Q7802
Q7801
R/C
MAIN
IC8831
TEMP. SENSOR C
< ADT75BRMZ >
(LAMP) (PANEL) (ROOM)
IC8821
TEMP. SENSOR B
< ADT75BRMZ >
IC8811
TEMP. SENSOR A
<
ADT75BRMZ >
293,212
SCL0
SDA0
Q7811 Q7812
C7801
~
C7804
FAN_ERR_B
FAN_ERR_B
267
FAN_ERR_C
29
D3636
D3637
Q3603
1
ERROR on P_FAIL FAN_ERR_B FAN_ERR_C
FN901 L - -
FN902 L - -
FN903 L - -
FN904 L L -
FN905 L L -
FN906 - - H
Fan control circuit