Block Diagram Supply 32 - Philips BJ3.1E LA Service Manual

Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Supply 32"

SUPPLY 32" LCD
A1 MAINS FILTER + STANDBY
1308 5401
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
BJ3.1E LA 6.
A2 SUPPLY
3810 25V_HOT
400V_HOT
+
+ +
7001
MC34067P
1 4 VCC
7807 11
OSCC
TCET1102
2 3
3007
CONTROL
7
ERROR
7017
7018
11
SOST
SOFT
START
5
VREF
+
CURRENT
PROTECTION
7004
7009
OVER
VOLTAGE
LATCH
PROTECTION
SA2 STANDBY
1 1
+5V2
2 2
3 3 7560
+5V_SW
5508
400V_HOT
5504
1 1
2 2
48
HOT GROUND COLD GROUND
4 1
7002
TCET1102
3100
3 2
BIAS SUPPLY 3000
5017 6080 6077 6078 5010
5002
2003
8
5007 5008
9
7
7005
STP15NK50 10
5001
7007
HIGH
15
6
SIDE
11
DRIVE
5040
7 3 12
14
4 5 13
OA
14
12 2
7006
OB
STP15NK50
7008
10
FI
15
LOW
10
SIDE
DRIVE
9
16
COLD GROUND
HOT GROUND
6101
5505
5500
5
5104
3
7102
STP6NK60
7100
2
TEA1533AT/N1
3S17
11
DRIVER
1
3S22
SPMS
CONTROL
14
DRAIN
3152 3160
9
ISENSE
6
CTRL
2
VCC
7
DEM
5106
RC FOR
DEMAGNETIZATION
7101
3127 3146
SUPPLY FOR
CONTROLLER
4 1
+AUX
3 2
7511
HOT GROUND COLD GROUND
7030
3031 DC_PROT
6044
STPS20L45CT
5027
3 1
2
+12V
+
6045
2
5028
3 1
+24V
7101
5025 +24V
+295V
+
7010
5026 TS2431AI
VS Voltage
Adj.
1M02
DC_PROT
1007
2291 5293
VSND_POS
T5A 6291
5291
GND_SND
6293
2293 5292
VSND_NEG
SA1
CONNECTIONS
1
2
3
4
5
6
6
6140
7 +11V
+
8
+12V
10
+8V6
7131
6107
2513
5103 5506 +5V2
+
STANDBY
STANDBY: LOW = ON
HIGH = STBY
7531
CONTROL
3124
+5V_SW
7501
TCET1102
2109 3128
Feedback
Circuit
A3 CONNECTIONS
1
2
3
AL
N.C.
4
5
6
1319
1
2
3 TO
DISPLAY
4
5
1317
1
2
3 TO
DISPLAY
4
5
7
6
TO 1M02
5
SA5
4
AUDIO
(BJ3.x)
3
2
1
1
2
3
4
5
6
SA1
CONNECTIONS
1M46
4
3
9
TO 1M46
11
B1B
7
SSB
1
(BJ3.x)
2
6
5
1M03
DIM-CONTRO_PWM 1
Power-OK-Platform 2
ON_OFF 3
TO 1M03
B5E
4
SSB
(BJ3.x)
7
STANDBY
PROT_AUDIOSUPPLY 8
+5V2 10
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