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Block Diagrams, Test Point Overviews, and Waveforms
Block Diagram Supply 42"
SUPPLY 42"
A1
MAINS FILTER + STANDBY PART A
5400
5401
1308
5403
1450
1400
1
2
MAINS
MAINS INPUT
3A15
2
FILTER
95 - 264Vac
1
6506
DF06M
-
+
A3
MAINS FILTER + STANDBY
HOT GROUND
PART B
COLD GROUND
5D00
5D01
5D03
1400
2
MAINS
3A15
FILTER
BJ3.1E LA
A2
SUPPLY PART A
3810
25V_HOT_A
3
6807
GBJ6J
400V_HOT_A
+
-
4
2815
2816
China
HOT GROUND
SA2
STANDBY
COLD GROUND
+5V2
1
1
2
2
3
3
1401
5504
1
1
2
2
T1A
2503
3406
1
1
2
2
3
3
4
4
A4
SUPPLY PART B
1
4
1D50
3H10
25V_HOT_B
3
6H07
GBJ6J
400V_HOT_B
+
-
2H16
2H15
China
6.
50
3028
BIAS SUPPLY
3000
5017
6080
6077
6078
5010
2003
5007
5008
7005
STP15NK50
5001
7007
7001
HIGH
15
MC34067P
6
SIDE
VCC
DRIVE
11
OSCC
5040
7
3007
CONTROL
14
4
OA
7
ERROR
7017
12
2
7006
7018
OB
STP15NK50
11
SOST
7008
10
FI
SOFT
LOW
10
START
SIDE
5
VREF
+
DRIVE
CURRENT
9
PROTECTION
7004
7009
OVER
VOLTAGE
PROTECTION
HOT GROUND
Prot-OVV
CONTROL
PROT_AUDIOSUPPLY
7505/7509/7560/
5505
7100
5104
7101
7105
7102
3104
CONTROL
3V MAX
3150
1V MAX STBY
3127
3100
3155
3156
6150
6151
HOT GROUND
3U28
BIAS SUPPLY
3U00
5U17
6U79
6U77
6U78
5U10
2U03
5U07
5U08
7U05
STP15NK50
5U01
7U07
7U01
HIGH
15
MC34067P
6
SIDE
VCC
DRIVE
11
OSCC
5U40
7
CONTROL
14
4
OA
7
ERROR
7U17
12
2
7U06
7U18
OB
STP15NK50
11
SOST
7U08
10
FI
SOFT
LOW
10
START
SIDE
5
VREF
+
DRIVE
CURRENT
9
PROTECTION
7U04
7U09
OVER
VOLTAGE
PROTECTION
HOT GROUND
4
1
7002
7030
DC_PROT
TCET1102
DC_PROT
3
2
5002
8
6019
5027
9
STPS20L40CFP
7
3
+12V
10
2
4
3
2020
2
5028
1
11
+24Va
1
3
12
2022
5
13
6021
5025
STPS20L40CFP
14
1
6014
15
2
7010
5026
3
TL431ACD
16
VS Voltage
Adj.
COLD GROUND
+5V2-RELAY-IO2_PWM
N.C.
7507
7506
7512
STANDBY
7511
5500
6504
3509
5110
VTUN
6
5
6140
7
+11V
3
2141
2
8
1
+12V
10
+8V6
7131
6107
5103
2513
5506
+5V2
6122
2512
3128
3124
3113
STANDBY
STANDBY: LOW = ON
4
1
7501
HIGH = STBY
TCET1102
7531
3
2
OVERVOLTAGE
+5V_SW
PROTECTION
3158
PROT-OVV
1
4
7150
TCET1102
2
3
COLD GROUND
3U57
3U52
4
1
7U02
DC_PROT
TCET1102
DC_PROT
3
2
+24V
1
2
2U22
3
5U02
4
8
9
7
10
11
1U07
2B91
5B93
3
12
T5A
6B91
5
13
5B91
6021
5U25
14
STPS20L40CFP
6B93
1
2B93
5B92
15
2
7U10
TL431ACD
5U26
16
3
3U24
VS Voltage
Adj.
COLD GROUND
CONNECTIONS
SA1
1316
1
2
3
TO
DISPLAY
4
5
+12V_A
4
3
2
+12V_+24V
1
1M10
1
TO 1M10
AL
2
3
AMBI LIGHT
4
(OPTIONAL)
1M03
9
TO 1M03
B01B
B5E
5
SUPPLY
1M46
11
9
7
4
TO 1M46
B01B
B1B
3
SUPPLY
2
1
5
1319
1
2
TO
3
DISPLAY
4
1
+24V_2
5
2
3
4
1M02
DC_PROT
7
VSND_POS
6
5
SA3
TO 1M02
4
SA3
3
AUDIO
2
VSND_NEG
1
G_15950_038.eps
050307
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