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15 Schematic Diagrams
15.1. Schematic Diagram Notes
65
TH-37PW7BX
65
TH-37PW7BX
15.2. Main Block Diagram
SU SC2 SC23
3.3V DC/DC
SC D 2.5V
1.8V CONVERTER
DISCHARGE
SC20 D20
CONTROL
S.R CONTROL
64
MAIN MPU ROM
S.R SDRAM ROM
64 SC
41
FORMAT PLASMA AI
CONTROL CONVERTER
S.R RGB SUB-FIELD
PULSE
64 PROCESSOR PROCESSOR
BUS BUS BUS BUS
SW SW SW SW
S.R SDRAM
64 LVDS LVDS A/D A/D
CONTROL
SUSTAIN
PULSE D5 D1 D3 D31 D32
J5 J6 J1 J3
J CONTROL
SYNC
SCAN
SEPARATOR
PULSE
J10
SC SYNC
S.R 42 SW
64
ANALOG SW
S.R VOLTAGE
AUDIO SW
64 GENERATOR
J8
S.R
64
J11 J12 J13 J14
S.R
64
HX
SD
PC RS-232C
PC AUDIO IN
H3
+
SP
-
R
SPEAKER
TERMINAL
C11 C21
C1 C
C12 C22
S.R. S.R. S.R. S.
TH-37/42PW7 series
TH-37/42PWD7 series
Main Block Diagram
66
P23 P2
DC/DC
P 15V
CONVERTER 15V
D25 P25
5V
VSUS
P11 SS11 VSUS
ON/OFF
VDA SS
D27 P27 SOS 15V PROCESS
STB5V
VOLTAGE SUSTAIN
12V
RECTIFIER VOLTAGE
SDRAM ROM 5V RECTIFIER
PLASMA AI PROCESS SUSTAIN
VOLTAGE VOLTAGE
SUB-FIELD CONTROL CONTROL
PROCESSOR
ADDRESS
STB7V STANDBY VOLTAGE
VOLTAGE POWER (VE)
STB5V RECTIFIER FACTOR
CONTROL
D31 D32 SUSTAIN
STANDBY PULSE
VOLTAGE
RECTIFIER
CONTROL
ERASE
SOUND12V
P5 PULSE
DIG12V
15V
RECTIFIER RELAY
Vda P12 SS12
P9
Z5
Z
DC/DC
CONVERTER
Z8
PRE AMP
SS23 SS34
R OUT L OUT
Z7 Z6
S1
POWER
SWITCH
X S34
AC IN
PF9
STB ON/OFF F
STB 5V
STB 15V F.STB LINE
H3
PF10 F1 AC IN +
+14V FILTER SP
-
L
SPEAKER
TERMINAL
VDA,SOS/SUSTAIN DRIVE PULSE
C21 C23 LED
C2 V1 POWER ON G
C22 STAND BY
R
REMOTE
C24 V34
RECEIVER
VOL.DN
F
S.R. S.R. S.R. S.R.
TV/VTR
CATS
DETECTOR VOL.UP
STR
TH-37/42PW7 series
TH-37/42PWD7 series
Main Block Diagram
66
15.3. PF-Board Block Diagram
PF
Line Filter/F.STB Board
PF1 PF9 TO P9
AC INLET LF901,LF902
LIVE F900
1 4 LIVE
LINE
FILTER
NEUTRAL F901
4 1 NEUTRAL
PF10 TO J10
AC LINE CODE 1
F902 RL920 STB+5V
F.STB ON/OFF
RELAY
F.STB ON/OFF
Q930 2 F.STB ON/O
5 F.STB+14V
LF903
D910 HOT COLD
6 F.STB+14V
T920
LINE 6 7
+
FILTER
5 8
4 9
+
+
10
IC910
2 11
STB REG D931
4 1 12
Vcc
DRIVE REG D 1
+
REG LATCH
- DRV
IC920
R
Q
S 3
OVP
S/GND
TSD
+
REG
Current
Mirror
5 3
+
-
OCP/BD
OVER CURRENT IC930 1
OLP
OSC +
OCP
DETECT
- ERROR DET
RTFC
+ 2
RESET TFC
- BTC
7 Current BD
Mirror
BEC
FB/OLP
6
Feed Back
TH-37/42PW7 series
TH-37/42PWD7 series
PF-Board Block Diagram
67
TH-37PW7BX
PF9 TO P9
4 LIVE
1 NEUTRAL
PF10 TO J10
1 STB+5V
2 F.STB ON/OFF
5 F.STB+14V
6 F.STB+14V
D931
TH-37/42PW7 series
TH-37/42PWD7 series
PF-Board Block Diagram
67
TH-37PW7BX
15.4. PF-Board Schematic Diagram (TH-37PW7/PWD7 series)
A
! PF-BOARD TXNPF10VBS(FOR 37 INCH MODELS)
TP921
R912
100k R915 C911
2W 100k 630V
*
m
0.022u
*
1W
R913 TP923
100k POWER CONTROL
2W 2W
*
*
R914
10
D912
+
R927 C912
B0HCMM000001
IC910 68k 50V
10u
4 C5HABZZ00121
C914 D911
*
Vcc 220p B0EAKT000018
2kV
*
DRIVE REG D 1
+ *
-
REG LATCH DRV L912
R EXCELSA24T
Q
S 3
OVP
*
S/GND
1/2W
*
+
TSD 1/2W R921
R918 R919
D910 C915 15
1
+
B0EBNT000002 C910 0.82
**
470p
B
*
*
REG #
*
*
450V Current 5
1/2W
~
~
** 100u Mirror 1/2W
+
OCP/BD
- #
R920 D918
*
-
OLP
! OSC +
OCP 330 B0BA01000046
D913
-
B0HCMM000001
RTFC
+
RESET TFC D914
- BTC R922
7 Current B0HCMM000001 1k
BD
Mirror
BEC #
1/2W
FB/OLP C913
220p
6
R923 C916
100k 0.01u R924
22k D915
R925 C918
1k 2200p B0BA01000046
D916
+
C917
50V B0BA01000046
10u
TP922
K6B
C JS905 JS904 JS902 JS90
HOT LIVE CIRCUIT
*
7W
R904
3.3 !
**
7W F902
R903 K5D312
3.3
TO ! ! ! ! ! !
*
AC CORD PF1 F900 CF901 LF901 C904 LF902 C905
ERZV10V621P2 G0B123K00002 0.47u G0B123K00002 1u
K5D802BNA003
1
*
*
*
*
LIVE
**
4
3
4
3
S907
!
*
*
=
*
*
*
3.5
3
! C901
*
*
*
F901
L.F L.F
1/2W $
1/2W $
1u
*
*
4 K