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A
B
8
FROM/TO SOUND AMP
SOUND_GND
SOUND+B
AT+5V
P.CON+5V
AT+12V
7
P.CON+9V
P.CON+5V SW
Q3406
+3.3V
2SB1132
GND
5.0
R3424
FROM/TO POWER2
22K
CP3401
(CP507)
TWG-P23P-A1
B3406 BLM31PG391SN1L
SOUND+B
1
SOUND+B
2
SOUND+B
3
SOUND GND
SOUND_GND
4
SOUND GND
B3407 BLM31PG391SN1L
AT+12V
5
AT+12V
6
6
AT+12V
7
GND
AT+5V
8
GND
9
GND
B3401 FCM1608KF-102T02
STAND_BY-H
10
STAND-BY_H
B3403 FCM1608KF-102T02
POWER_ON-H
11
POWER_ON_H
B3404 FCM1608KF-102T02
LIGHT_CTL
12
LIGHTE_CTL
B3405 FCM1608KF-102T02
INVETER_H
13
INVETER_H
B3408 BLM31PG391SN1L
AT+5V
14
AT+5V
15
AT+5V
16
POWER_FAIL
NC
17
GND
5
18
GND
19
GND
B3409
SW+4V[DTV]
20
SW+4V(DTV)
BLM31PG391SN1L
21
SW+4V(DTV)
B3410
SW+1.5V[DTV]
22
SW+1.5V(DTV)
BLM31PG391SN1L
23
SW+1.5V(DTV)
4
FROM/TO MICON
AT+12V
P.CON+5V
AT+5V
POWER_FAIL
POWER_ON-H
STAND_BY-H
INVETER_H
LCD-H
LIGHT_CTL
DTV_ON-H
3
GND
FROM/TO AV SWITCH/JACK
P.CON+9V
P.CON+5V
SLEEP+3.3V
SH3401
SH3402
TP00370-21
TP00370-21
2
GND
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A
B
H-11
C
POWER1 SCHEMATIC DIAGRAM
REG+9V IC
IC3404
BA00BC0WFP
V_C
V_IN
GND
V_OUT
V_ADJ
1
2
6
4
5
0
5.0
12.0
9.2
1.4
P.CON+9V
5.0
P.CON+5V
0
SW+1.5V[DTV]
POWER ON SW
Q3408
0
KRC102SRTK
4.9
0
P.CON+5V
POWER_ON-H
REG+3.3V IC
IC3406
BD7820FP
V_C
V_IN
GND
V_OUT
V_ADJ
1
2
6
4
5
4.9
5.0
0
3.3
1.26
LCD+3.3V
SW+4V[DTV]
5.0
5.0
AT+5V
+5V SW
0
Q3402
2SB1132
R3401
47K
LCD-H
R3419
D3412
POWER_FAIL
56K
1SS355
NC
NC
0
0
W840
AT+5V
D3410
5
4
RB520S-30-TE61
NC
NC
OUT
IN
GND
1
2
3
5.3
3.0
3.0
0
W874
4.9
DTV_ON-H
D3411
R3417
0
1SS355
POWER_SW
5.6K
Q3401
+-1%
KRC103SRTK
SH3403
SH3404
SH3405
TP00370-21
TP00370-21
TP00370-21
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
C
D
E
(DIGITAL PCB)
1.5
S
1.5
S
1.5
S
1.5
S
DC/DC CONVERTER
MOS FET
IC3403
BD3504FVM
Q3405
RSS065N03FL16TB
C3420
0
0.7
NRCS
VD
0
3.3
0.01 B
GND
G
3.3
1.1
VS
EN
5.0
0.6
VFB
Vcc
R3402
3.3K
R3404
W873
1K
DTV_+5V
REG+3.3V IC
IC3401
PQ035ZN1HZPH
REG+2.5V IC
IC3402
BD7820FP
V_IN
V_C
V_OUT
V_ADJ
GND
V_C
Vin
GND
Vout
1
2
6
4
5
1
2
6
4
5.0
5.0
3.3
0.6
0
3.8
4.0
0
2.5
W871
SLEEP+3.3V
ATTENTION
ARE
:LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
F
G
3.3
G
1.1
D
1.1
D
1.1
B3402
D
BLM31PG391SN1L
REG+1.8V IC
IC3405
BD7820FP
Vadj
V_C
Vin
GND
Vout
Vadj
5
1
2
6
4
5
0.7
3.3
4.0
0
1.8
0.7
W872
SLEEP+2.5V
CAUTION: DIGITAL TRANSISTOR
ETANT
F
G
H
8
7
FROM/TO LVDS
SLEEP+3.3V
LCD+3.3V
GND
FROM/TO ASIC
VDDC_1.0V
+3.3V
+2.5V_IO
6
GND
FROM/TO FLASH
DTV_+5V
+3.3V
GND
5
FROM/TO FRONT END
P.CON+5V
+2.5V_IO
+3.3V
GND
FROM/TO VIDEO AD
SLEEP+2.5V
SLEEP+3.3V
GND
4
FROM/TO AV OUT
P.CON+9V
+3.3V
+2.5V_IO
GND
3
FROM/TO SDRAM
GND
+2.5V_IO
+3.3V
MEM[1.8V]
VDDC_1.0V
2
PCBDH0
CEF251
1
H
H-12
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Troubleshooting
