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Block Diagrams, Test Point Overviews, and Waveforms
Block Diagram Supply
SUPPLY 32" LCD
A1
MAINS FILTER + STANDBY
5401
1308
1450
5403
1400
1
2
3
MAINS
6807
F4A
2
FILTER
GBJ6J
1
4
MAINS INPUT
95 - 264Vac
HOT GROUND
COLD GROUND
6506
DF06M
1401
-
+
2503
BJ3.1A LA
A2
SUPPLY
3810
25V_HOT
400V_HOT
+
-
+
+
7001
MC34067P
1
4
7807
11
TCET1102
2
3
3007
7
7017
7018
11
SOFT
START
5
+
CURRENT
PROTECTION
7004
7009
LATCH
STANDBY
SA2
1
1
2
2
7560
3
3
5508
5504
1
1
2
2
6.
42
HOT GROUND
4
3100
3
BIAS SUPPLY
3000
5017
6080
6077
6078
5010
2003
5008
8
5007
7
7005
STP15NK50
5001
7007
HIGH
15
6
SIDE
VCC
DRIVE
OSCC
5040
7
3
CONTROL
14
4
5
OA
ERROR
12
2
7006
OB
STP15NK50
SOST
7008
10
FI
LOW
10
SIDE
VREF
DRIVE
9
OVER
VOLTAGE
PROTECTION
+5V2
+5V_SW
COLD GROUND
HOT GROUND
400V_HOT
6101
5505
5104
7102
STP6NK60
7100
TEA1533AT/N1
3S17
11
DRIVER
3S22
SPMS
CONTROL
14
DRAIN
3152
3160
9
6
ISENSE
CTRL
2
VCC
7
DEM
5106
RC FOR
DEMAGNETIZATION
7101
3127
3146
SUPPLY FOR
CONTROLLER
+AUX
HOT GROUND
COLD GROUND
1
7002
TCET1102
2
7030
DC_PROT
3031
5002
6044
STPS20L45CT
5027
9
3
1
2
10
+
6045
2
5028
11
3
1
7101
12
13
5025
+24V
14
15
+
7010
5026
TS2431AI
16
VS Voltage
Adj.
1007
2291
5293
VSND_POS
T5A
6291
5291
GND_SND
6293
2293
5292
VSND_NEG
SA1
CONNECTIONS
5500
6
5
6140
7
3
+
8
2
1
10
6107
5103
2513
5506
+
STANDBY: LOW = ON
7531
CONTROL
3124
4
1
7501
TCET1102
3
2
2109 3128
7511
Feedback
Circuit
COLD GROUND
A3
CONNECTIONS
1
2
3
AL
N.C.
4
5
6
+12V
1319
+24V
1
2
3
TO
DISPLAY
4
5
+295V
1317
1
2
3
TO
DISPLAY
4
5
1M02
DC_PROT
7
6
TO 1M02
5
SA5
4
AUDIO
3
(BJ3.x)
2
1
1
1
2
2
3
3
4
4
5
5
6
6
SA1
CONNECTIONS
+11V
1M46
+12V
4
+8V6
7131
3
9
TO 1M46
11
B1B
+5V2
7
SSB
1
(BJ3.x)
STANDBY
2
6
HIGH = STBY
5
+5V_SW
1M03
DIM-CONTRO_PWM
1
Power-OK-Platform
2
ON_OFF
3
TO 1M03
B5E
4
SSB
(BJ3.x)
7
STANDBY
8
PROT_AUDIOSUPPLY
+5V2
10
G_16850_017.eps
050307
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