Supply Voltage Overview - Philips LC4.8E AB Service Manual

Block Diagrams, Test Point Overviews, and Waveforms

Supply Voltage Overview

SUPPLY LINE OVERVIEW
SA1 CONNECTIONS B16 TOP CONNECTORS
1 1
2 2
3 3
1J07
5J03
4 4
5 5
6 6
1J08
5J04
7 7
8 8
9 9
10 10
4J01
11 11
1301
1
K3
2
IBO
ZAPPER
1
1
2
2
3
3
4
4
4
3
5
5
2
6
7
1 1
8
2
9
3
10
4
5
A MF + SUPPLY
4
3
1304
A2
2
SUPPLY
1
SA2
STANDBY
CONTROL
7511
5500
6504
5110
6
RES
6140
7
See also Block Diagram
Supply
8 STANDBY
7131
10
RES
2513
6107
5
1306
1 1
7531
A1
MAINS
2 2
FILTER
CONTROL
Relay +5V2
1 1
1305
2 2
A1
MAINS
3 3
FILTER
SA3
AUDIO
VSND_POS
6 6
1M02
5 5
A2
SUPPLY 2 2
VSND_NEG
1 1
5723
5707
5711
+16V+19V 7712
2797
2798
-16V-19V
7713
LC4.8E AB 6.
B1
TUNER & IF
5102
5103
B2 HERCULES
3265
7215
3264
7216-1
3263
7217
3262
7216-2
B3 SYNC INTERFACE
B4
AUDIO DELAY LINE
(RESERVED)
5501
B5
AUDIO PROCESSING
VTUN
+11V
+12V_A
SA1
+12V
SA1
+8V6
+5V2
SA1
B6 DC-DC CONVERTER
7738
+5V_SW
5738
IN OUT
COM
5753
7752
5752 5754
DC/DC
Converter
7730
6735
5730 5733
PWR
REG
5737
+16V+19V
5757
7754
5700
-16V-19V
PANEL-PWR-CTL
-Vf21
-Vf11
-Vf1
7710
5712
IN OUT
Vp
COM
7708
5704
IN OUT
COM
7758
SC_STANDBY
Vm
30
B7
SCALER
B8
B6
B8
B8
B8
SCALER
B6
5900
5901
5902
5903
5904
5905
5906
5907
7900
5908
IN OUT
COM
7901
IN OUT
COM
5909
5910
5911
B9
SCALER INTERFACE
B16
B16
B6
B6
B10
SDRAM
B8
3B01
B11
FLASH / CONTROL
HDMI
B8
B2
B6
VGA
B12
HDMI
B4,B9,B13, (Not for EUR Sets)
B6
B14,B19
B6
B22
B1,B2,B3,
B6
B15,B17
B13
MUX-SYNC INTERFACE
B6
B21
B6
1K01
B14 DIGITAL IO
(Only for EUR Sets) B17
B6
6F00
5F03
3F20 6F01
1K00
1
DVI B17
B3,B5,B7,
B15 SCART ANALOGUE IO
(Only for EUR Sets)
B8,B9,B11
B12,B13,
B19,B20,
B21
B17 K1
SIDE CONNECTORS MOJO
5K00 1540
5
J
5100
5K01
7
1304
D
K2 FLASH MEMORY
B18 ADC
7K05
IN OUT
COM
B19 COLUMBUS
K3
POWER SUPPLY
1301
1
1M10
5M03
SA1
5309
5301
6
5M04
B20 EPLD
5304
6
5306
B21
EPLD
5P01
7P01
IN OUT
K4 INTERFACE
COM
5P02
5P03
K5 ANALOG BACK END
B22
DIGITAL IO
(Not for EUR Sets)
1Q03
18
1870
3Q16 6Q16
5Q16
9
3Q17 3Q18
10
K6
FRONT END
B23
CINCH ANALOGUE
(Not for EUR Sets)
D SIDE I/O
1M36
K7
7 COMMON INTERFACE
J LED PANEL
0345
5
1
CURRENT
SWITCH
5201
5200
5300
7311
2
SUPPLY
5302
7P01
IN OUT
COM
5303 5307
2
SUPPLY
7P01
5305
6 2
SUPPLY IN OUT
COM
7P01
IN OUT
COM
5801
5703
5704
5702
7
5700
5701
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