14.3. PF and P-Board Block Diagram
+
+
+
+
+
+
+
+
+
5V
SUSTAIN VOLTAGE CONTROL
D565
Vsus
TO SS12
P
Q401
P25
T501
+
Power Supply Board
Q403
2
10
4
5
Q402
13
9
3
1
1
2
5V
RUSH ON/OFF
2
D566
D404
P23
TVON/OFF
2
IC402
1
1
P5
2
5
2
START
Vin
T502
18
REG
17V
RL403
T.S.D
12V
3
5V
8
STB5V
6
DR15V
+12Vs
+
4
DR15V
4
IC557
12V
3
AVR 5V
NEUTRAL
1
3
TV ON/OFF
KILL SOS
Vin
DRIVER
OCP/FB
PS SOS
Source
ALL OFF1
GND
D408
Drain
2
11
10
HOT
O.S.C
VDA
9
4
+
DR15V
7
-
5
STB PS
-
8
3
AVR 5V
8
70V
4
7
15
380V
4
Rg2
11
Rg1
P7
DRIVER
Q404
2
15
1
4
10
1
IC403
P12
TO D25
2
RUSH ON/OFF
TO D27
REGENERATIVE
RL401
4
TV ON/OFF
9
CONTROL
Q555
IC555
1
IC553
14
M POWER
Q557
Q552,3,4
RUSH ON/OFF
20
1
P2
7
Q455
2
STB 5V
IC554
2
2
1
13.5V
Q456
6
1
DRV.REG
IC552
Q651
5
1
5V
Q457
12
=8.3V
Rg2
PROCESS VOLTAGE CONTROL
Q650
Vda
LATCH
Q452
START
Rg1
O.V.P
REG
Q453
RL402
OCP/FB
DRV.REG
IC558
T.S.D
OUT
Source
TO SS11
8
GND
17
Drain
16
3
5V
18
Q454
1
DR15V
VSUS
Q451
Q558
11
2
VSUS
L451
DR15V
7
8
FAN SOS
14
12V
12
12V
FAN SOS
O.S.C
6
+
5V
12V
COLD
3
-
15Vs
-
+12Vs
13
P27
12
+15Vs
2
15
=8.3V
+15Vs
3
T401
14
LATCH
HOT
15V
1
2
O.V.P
IN
1
3
1
4
2
P9
3
1
P10
4
2
3
3
VSUS
1
TO SC2
VSUS
IC401
TO SC23
3
2
7
LINE
P11
6
3
2
1
3
1
19
7V
1
2
2
17
12V
IC550
3
15V
COLD
1
190V
D451
IC451
4
IC551
LIVE CIRCUIT
2
LINE
N
LINE
NEUTRAL
AC CORD
PF
Line Filter Board
LINE
LF904
L.F
L.F
L.F
4
PF2
1
1
PF1
4
LF909
LF915
F900
F901
N
1
1
8
10
3
3
4
3
4
2
9
CONTROL
STANDBY
VOLTAGE
DETECT
ERROR
DETECT
ERROR
DETECT
ERROR
DETECT
ERROR
POWER
FACTOR
CONTROL
HOT
TH-42PA20U
PF and P-Board Block Diagram
TH-42PA20U
PF and P-Board Block Diagram
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
TO PA7
TO PA5
57
Summary of Contents for TH-42PA20U/P
Page 11: ...4 TH 42PA20U A ...
Page 28: ...6 2 Lead of Wiring 2 9 ...
Page 29: ...6 3 Lead of Wiring 3 10 ...
Page 30: ...6 4 Lead of Wiring 4 11 ...
Page 55: ...16 Mechanical Replacement Parts List 36 ...
Page 61: ...C2342 ECA1HHG100 E 10UF 50V 1 42 ...
Page 78: ...R416 ERJ6ENF2551 M2 55KOHM 1 10W 1 59 ...
Page 82: ...R2453 ERJ6GEYJ103 M 10KOHM J 1 10W 1 63 ...
Page 95: ...76 ...
Page 225: ...1 Applicable signals 4 TH 42PA20U P ...
Page 230: ...6 Location of Lead Wiring 6 1 Lead of Wiring 1 9 TH 42PA20U P ...
Page 231: ...6 2 Lead of Wiring 2 10 TH 42PA20U P ...
Page 232: ...6 3 Lead of Wiring 3 11 TH 42PA20U P ...
Page 233: ...6 4 Lead of Wiring 4 6 5 Lead of Wiring 5 12 TH 42PA20U P ...
Page 242: ...9 4 IIC mode structure following items value is sample data 21 TH 42PA20U P ...
Page 253: ...32 TH 42PA20U P ...