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LC-20B4M
BLOCK DIAGRAM
H
G
F
INPUT/OUTPUT
COMPONENT
E
P3501
RXD,TXD
D
DC IN
DC13V
C
B
6LAMPS
(UP)
A
1
2
AGC,AFT,SAW_ SW,MODE 1 ,MODE 2
TV_ V
TUNER
SIF
TU3201
V1 _ V
AV1
AV1 _ L,R
INPUT
SY
S-VIDEO
SC
INPUT
V2_V IN/OUT
AV2
AV2_L,R IN/OUT
SC1_OUT_R,L
Y,PB,PR
INPUT
DL,DR
L_ERR
LAMP
CHECK
PA VCC
DC/DC
SIG.VCC
T3701
INV VCC
PWM
IC3701
P3601
P3602
P3604
INVERTER A UNIT
Q6700,Q6701
T6700, T6701
Q6703, Q6704
T6702, T6703
Q6706, Q6707
T6704, T6705
3
4
SIF AMP
Q3201 ,Q3202
AUDIO IN/OUT
VIDEO IN/OUT
SWITCH
IC3501,Q3501
Q3502-Q3505
AV2_R,L
AUDIO
DECODER
(MSP)
IC3304
AUDIO
FILTER
POWER AMP
IC3301
IC3303
~
Q3707
34V
Q3708
9V
Q3709
5V
-11V
4LAMPS
NVERTER B UNIT
(DOWN)
Q6709, Q6710
T6706, T6707
Q6712, Q6713
T6708, T6709
5
6
7
24
SC3403
VIDEO
SWITCH
V_IN
IC3401
AMP
IC3502
SSTBY
V_IN/OUT
SWITCH
S_IN/OUT
OFL REVERSE
Q3601
OFL
SOUND
IC3305
Q3705
17V
23V
IC3702
32V
9V
8V
P3701
5V
HEADPHONE
JACK
-11V
J3303
P3603
P3301
P3302
SP-L
SP-R
8
9
SC
F
F
F
F
OFL1
P
P35 02
REMOTE
CONTROL
RECEIVER
10
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