Supply Voltage Overview - Philips LC4.2E Service Manual

Block Diagrams, Testpoint Overviews, and Waveforms

Supply Voltage Overview

TV SUPPLY
SUPPLY A6
PANEL
1200 1910
1
AUD_SUP
2
3 5909
+3V3STBY
4
1001
5
6
7
8 +12VUNREG
9
A5
POWER_DOWN
10
A2
STANDBY
11
A7
BU_LIGHT_ADJ1
12
A7
LAMP_ON_OFF
7930
MC34063AD
5930 5931
1520 +12VSW
6 2
SUPPLY
IC
5910
3910
7920
7910
L78M08CDT
5920
+8VSW_TV
+12VSW
1 3
SUPPLY
A14
+3V3STBY
+3V3STBY
5984
+3V3_PLL
5985 +3V3_ADC
5986
+3V3_DVI
5987 +3V3_IO
5988
+3V3_LBADC
5989 +3V3_LVDSA
5990
+3V3_LVDSB
5991 +3V3_LVDS
7992
5994
+2V5_DDR
7995
+1V8
5996 +1V8_ADC
5997
+1V8_DVI
5998 +1V8_CORE
5958
+12VUNREG +12VSW
7952
5952 5953 5954
6 2
SUPPLY
IC
6951
7993
7954
5956 5959
S D
+12VUNREG
G
PANEL_PWR_CTL
A7
CONTROL
7955
LC4.2E AA 6.
TUNER IF
A1
+5VSW
A6
F903
AUD_SUP
A5
+VTUN
A6
+3V3STBY
A6
F905
+3V3STBY
A13
HERCULES
A2
A12
A11
A9
A7
+3V3STBY
A5 A6
A3
A2
A1
F906
A14
+12VUNREG
A14
7011
14
HERCULES
127
A3
F915 A2
5932 A1
+5VSW
+8VSW_TV
A6
F912
6910
+VTUN A1
+5VSW
A6
6911
-/C33
HISTOGRAM
A3
F913
A3
+8VSW_TV
A2
+5VSW
A6
+3V3STBY
A6
+12VSW
A14
+8VSW_TV
A6
+12VUNREG
A6
7562
+3V3STBY
A6
+12VSW
A14 1 3
A7
+3V3_PLL
A9
AUDIO AMPLIFIER
A7
A5
+3V3_ADC
A9
A7
+3V3_DVI
A9
AUDIO_SUP
A6
A7
+3V3_IO
A9, A10
A7
+3V3_LBADC +T
A9
+3V3STBY
A6
A7
+3V3_LVDSA
A9
A7
+3V3_LVDSB
A9
SCALER
A7
A7
+3V3_LVDS
A9
+3V3STBY
A7 A6
A9
+2V5_DDR
A10
+3V3_DVI
A14
+3V3_PLL
A14
+5VSWI
A14
A7
+1V8_ADC
A9
+3V3_LBADC
A14
A7
+1V8_DVI
A9 +1V8_CORE
A14
A7
+1V8_CORE
A9 +3V3_IO
A14
+3V3_LVDSB
A3
+12VSW A14
A6
+2V5_DDR
A14
A9
+3V3_LVDSA
A14
A13
+5VSWI +5VSWI
A7
+3V3_LVDS
A14
FSVREF
A10
+1V8_DVI
A14
+1V8_ADC
A14
+3V3_ADC
A14
PAN_VCC
PAN_VCC
25
+3V3STBY
A6
+5VSW
+5VSWI
A14
+VTUN
+3V3_PLL
A14
+3V3STBY
+3V3_ADC
A14
(FOR ITV ONLY)
+3V3_DVI
A14
+3V3_IO
A14
+3V3_LBADC
A14
+3V3STBY
+3V3_LVDSA
A14
7001
+1V8_A
+3V3_LVDSB
A14
+3V3_LVDS
A14
+1V8_ADC
A14
CONTROL
+2V5_DDR
A14
7003
+1V8_B
+1V8_CORE
A14
+1V8_DVI
A14
CONTROL
+8VSW_TV
3374
TO 45 - 7011
+5VSW
+2V5_DDR
A14
1005
1
+5VSW
+5VSW
1008
+3V3STBY
FSVREF
A7
26
+3V3STBY
+8VSW_TV
NC
27
+3V3STBY
+8VSW_2 A6
1004
1 +3V3_IO
+3V3STBY A14
+8VSW_TV 10
+3V3STBY
A6
AUDIO_SUP
1701
TO 15, 16 - 7707 (ITV ONLY)
+3V3STBY
+3V3STBY
A6
+3V3STBY
+5VSWI
A14
+3V3_DVI
+3V3_PLL
H1
+5VSWI
+3V3_LBADC
1103
+1V8_CORE
31
+3V3_IO
+3V3_LVDSB
H2
+2V5_DDR
+3V3_LVDSA
1698
+3V3_LVDS
28
FSVREF
29
LCD
+1V8_DVI
DISPLAY
LVDS
+1V8_ADC 1687
CONN. 17"
VGA 9
1403
+3V3_ADC
CONN.
1
OR
1680
2
DVI-D
OR 14
CONN.
PIXEL+ PANEL
A9 SCALER INTERFACE PP4
1409 1001
+3V3STBY
7 7
+5VSWI 9 9
+3V3_PLL
+3V3_ADC
+3V3_DVI
+3V3_IO
+3V3_LBADC
PP1
+3V3_LVDSA
EPLD
CONT.
+3V3_LVDSB
+3V3_LVDS
+1V8_ADC
PP3
+2V5_DDR
EPLD
+1V8_CORE
I/O
+1V8_DVI
FSVREF
PP2
LVDS
IN
A10 SDRAM
VLCD
1
2
+2V5_DDR
3501 1801
FSVREF
3502
A11 FLASH/CONTROL
3D COMB FILTER
CB
+3V3STBY
+3V3_IO 1801
3V3STBY
1
10
A12 HDMI
(MAINLY FOR NAFTA)
+3V3STBY
1801
3
+5VHDMI
NC
A13 PCHD-MUX
1601
+3V3STBY
17
+3V3STBY
18
+5VSWI
+5VSWI
REAR I/O SCART D SIDE IO & LKB
1104 1301
5 5
+5VSWI
+5VSWI
6 6
+5VSWI +3V3STBY
3169
+5VSW_1
PCHD-IO
J FRONT IR/LED
+3V3STBY
+5VSWI 1540
2
6692
3702 6693
5686
DCC_5V
3691 6691
5692
DCC_5V
7504
+3V3
7501
7505 1 3
+1V5
+5
5107
+3V3_IO
5104
+1V5_PLL
5105
+1V5_INT
+3V3_IO
+5
3V3
3V3
1003
VLCD
1 LCD
DISPLAY
2
23" & 26"
3V3STBY
8V3
8V3
3855
5855
8V3d
5856
3V3_400mA
7851
LF25CDT
5851
IN OUT
2V5A
3876 68756876
2V5D
5870
3878
2V5P
+5VSWI
+3V3STBY
1302
+3V3STBY 2
++3V3STBY
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