Block Diagram Supply And Standby - Philips LC4.6E AA Service Manual

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Supply and Standby

SUPPLY + STANDBY
MAINS FILTER + STANDBY
AS1
5401
5402
1308
5403
1400
2
MAINS
T3.15AH
FILTER
1
EUR, CHINA 1X MAINS FILTER + HORMONIC COIL
MAINS IN
US, AP 2X MAINS FILTER + IR INRUSH CURRENT
EUR: 198 - 264V~
CHINA: 160 - 270V~
US: 108 - 132V~
APmulti: 90 - 175V~
6506
DF06M
-
LC4.6E AA 6.
SUPPLY
AS2
3810
25V_HOT
1450
6807
GBJ6J
2
3
400V_HOT
- +
4
1
7805
7806 2815
VOLTAGE
DOUBLER
(for 110V only)
2816
US DOUBLER
AP AUTO DOUBLER
WITH TRIAC
STANDBY
HOT SA2
1305 1305
COLD
1 1
2 2
3 3
1306 1306
F194
1401
1 1
+
2 2
T1AE
2503
3101
1307 1307
1 1
2 2
6155
3
3
6154
4 4
16
BIAS SUPPLY 3000 6079 6078
2003
7005
STU16NB501
7007
5001 I038
7020
7001
HIGH
MC34067P 15
10
SIDE
VCC
DRIVE
1
OSCC
11
F003
3007 CONTROL
14 F005
4
OA
F004
7 ERROR 7006
7017
STU16NB501
12 2
7018 OB
7008,
I057
7021, 7022
10
FI
SOFT 11
SOST LOW
14
START
SIDE
+ DRIVE
CURRENT
13
PROTECTION
7004
7009
OVER
VOLTAGE
PROTECTION
+5V2-RELAY-IO2
OVERVOLTAGE PROTECTION
THYRISTOR
STANDBY
7505/7509/7560
7102
7100
7101
I130
7105
CONTROL
3V MAX
1V MAX STBY
3108
6150 6151 3155
400V_HOT
6153
HOT COLD
3057
7002
TCET1102
DC_PROT
DC_PROT
5002
6044
8
STPS20L45CT
5027
7
9 3 1
F016
2
+12V
10
6045
STPS20L45CT 2038
2
11
F025
5028
3 1
+24V
5040
3 12
2021
6021
STPS20H100CT
5 13
5025 3022 3052
14
3 1
2
15
6025
2 STPS20H100CT
5026
16 3 1
7010
TL431ACD
3024
3030
3026
VS Voltage
Adj.
2011
DC_PROT
F297
2291
1007 5239 VSND_POS
PRINTED
COMPONENT
T5A
6291
5291 GND_SND
6293
F298
2293
5292 VSND_NEG
HOT COLD
+5V2-RELAY-IO2
7507
7506
7512
COLD STANDBY
+12V_A
HOT
5500
6504 7511
5110 3509 VTUN
5 6
I198
6140
7 +11V
3
2 8
5507
F136
1 10
+12V
6505
I104
+8V6
6107
7131
I138
2513
5105 5103 5506 +5V2
6122 STANDBY
3128
4 1
STANDBY: LOW = ON
HIGH = STBY
7501
TCET1102
3
2
OVERVOLTAGE
7531
PROTECTION F109
+5V_SW
3158
PROT_AUDIOSUPPLY
1 4
7150 +5V2
7508 POR
TCET1102
OR
+5V2-RELAY-IO2
2 3
9110
CONNECTIONS
SA1
1304 1304
4 +12V_A
4
3
3
2
2
+12V_+24V
1
1
1M02
7
6
TO 1M02
SEE ALSO
5
SA3 BLOCK DIAGRAM
4
SUPPLY LINE
AUDIO
3
2
1
SA1 CONNECTIONS
1M03
TO 1403
9
A9
PROT_AUDIOSUPPLY
8
CONNECTIONS
STANDBY
7
1M46
1
2
3
4
TO 1251
5
A15
6
CONNECTIONS
7
8
9
10
11
E_14710_033.eps
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