Block Diagram Scaler - Philips LC4.2HE Service Manual

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Scaler

A 2
HERCULES
SDM PINS
4022
7011
u-Processor
A13 KEYBOARD 120 114 SEL_IF
A13 LIGHT-SENSOR-SDM 115 111 SOUND_ENABLE
A13 IR 107 PC-TV-LED
97
A3 STATU S_2 119 108 SCL
A3 STATU S_1 116 HERCULES 109 SDA
IC
5 6
P50_LINE_ITV_IR_SW
A3 123
7099
7075 ERR 104 NVM_WP 7
NVM
P50
6
ERR
9
EXT_MUTE
102
7001,7003
+3V3STBY +1V8_A
3,93,96
99 TV_SC_COM
+1V8_B 100,117,118,124
98 TV_IRQ
7070
122 STANDBY
127
126 P50
14 128 POWER_DOWN
DECDIG
1001
2007
4,5,7,9,88,90,94 10
+3V3STBY
15,69,82
11
+5VSW
2006
H2
PCHD-IO
HS
VS
PC-IN
PC_HD_DET+
5
15
3709
BLU_PB
11 1
GRN_Y
RES
RED_PR
RES
6 5
UART_TX
7693 7694
8 DDC 8 DVI
UART_RX
DDC_5V
NVM NVM
DVI-IN
6 5
1 RX2-IN
2 RX2+IN
SCL_DVI
6
SDA_DVI
7
RX1-IN
9
RX1+IN
10
3,11,19,22
DDC_5V
5692
6691
3691
14
+3V3STBY
6692
3682
+5VSWI
15
3710
16 HOT_PLUG
17 RX0-IN
RX0+IN
18
RXC+IN
23
24 RXC-IN
PC_AUDIO_L
PC-AUDIO-IN
PC_AUDIO_R
PC-TV-LED
LED-SEL
LIGHT-SENSOR-SDM
IR
+3V3STBY
KEYBOARD
6 9 8 4 3 2
1104
1301
FRONT 6 9 8 4 3 2
J
CONTROL
2 2
1 1
6540
3 3
7543
6 6
4 4
LKB 5x
1309~13
6541
D
SIDE AV
LC4.2HE AA 6.
7607 L H PIN
A13
PCHD-MUX
SD_HD_SEL SDTV HDTV
PC_HD_SEL ENABLE DISABLE
7605
7604
A2 H_CS_SDTV
13
A1
H_CS
14 1 2 3 4
A2 V_SDTV 1
A5
HS 12
15
VS
A13 2
6 9 8 V
5
9,11
A7 SD_HD_SEL
7604-5
6604
PC_HD_DET- 11 10 PC_HD_DET
A7
PC_HD_DET+
7607
6605
F624
A2 R_SDTV 27
SOG
A2 G_SDTV F625 3
A5
17
F613 R_PR+
A2 B_SDTV F626
7
14
A7
RED_PR F615 G_Y+
25
A7 11
GRN_Y
1
F617 B_PB+
BLU_PB
A5 5
R_PR-
HD_FILTER
A7 21
A3
9
A7 SD_HD_SEL 22
A6
7604-6
PC_HD_SEL
A7 13 12
37 9 HS
38 8 VS
PC_HD_DET+
18 28
19 27 PC_HD_DET-
7606
35 11 BLU_PB 1 2
33 13 GRN_Y 15 14
RED_PR 11
31 15 12
22 24 UART_TX
9, 17, 19
A7 A 7
PC_HD_SEL
23 23 UART_RX
A7
6 40
7 39
26 20
25 21
9 37
10 36
29
17
+3V3STBY
28 18
+5VSWI
20 26
12 34
33
13
15 31
16 30
A12
4 42 4836 AudioIN2L
2 44 4838 AudioIN2R
40 8 PC-TV-LED
3640
+3V3STBY
41 5 LED-SEL
7640
43 3 LIGHT-SENSOR-SDM 6640
+5VSWI
42 4 IR
45 1 KEYBOARD
A2
A14
+1V8
SUPPLY
+3V3STBY
7995
6995
I996
3 2
7952 1
8
2960
S Q
1
+12VSW
R 2
7 3
OSC
6951
4
REF
A7
VCC PANEL-PWR-CTL
3954
6 5 F954
+5VSWI
2953 2957
22
A7
A11 FLASH/CONTROL
SCALER
+3V3STBY
22
9 7532 5
VCC
4
RESET
GND
2,3
A12
#RESET
ANALOG
INPUT
PORT
G_Y-
B_PB-
A10
SDRAM
7501
ADDRESS
FRAME
STORE
CONTROL
SDRAM
ERR
14
DATA
DVI/HDMI
INPUT
PORT
HOT_PLUG
A13 PC_HD_DET
GPIO_G09_B1
A6 POWER_DOWN
OCM_INT1
A2 TV_SC_COM
GPI_G09_B3
A2 Y_NOTCH
GPIO_16
1401
2488
+3V3_PLL
2487
5996
7992
+1V8_ADC
5997 5994
I992
1 3
+1V8_DVI +2V5_DDR
5998
2994
+1V8_CORE
2
+3V3STBY
7953
5959
1 3 F960
PAN_VCC
7955 2960
7954
2
3958
+3V3_IO
7531
SCREEN SIZE 5
(1)
PRESENT ONLY FOR 23"
(2)
PRESENT ONLY FOR 26" NVM
6
(1)
3551
(2)
NVM-WP 7
3552
SCL_IO
SDA_IO
EXT.
ADDRESS
ROM
INTER-
DATA
FACE
1403
1,2
PAN_VCC
3,4,5
TXB0- 6
7401
TXB3+ 7
GM1501
TXB0+ 8
SXGA DISPLAY
TXB3-
CONTROLLER 9
10,11
TXB1-
12
DISPLAY
TXB1+ 14
TIMING
GRAPHIC
TXBC+ 15
ZOOM GEN
13,16
FOR SETS
WITH
TXBC- 17
PIXEL+
TXB2- 18
19
TXB2+ 20
LVDS IN
PP2 PP3
1002
7201 7101
THC63LVDF84B EP1C12F256C8
LVDS EPLD
10 INTERFACE (PIXEL+
20p
RECEIVER PROC)
LVDS_SIGNAL_IN
PP1 EPLD
CONTROL
7102
EPCS4518
EPLD
FLASH
ROM
7108
OC
VIDEO
CLOCK
ZOOM
GENERATOR
SCALER INTERFACE
UART A 9
1409 1001
INTERFACE
1
SDA_IO
3
SCL_IO
MICRO-
CONTROLLER 4
PIXEL+_RESET
GPIO_G07_B6
5
PIXEL+_SYNC
GPIO_G07_B2
INTERNAL 7
+3V3STBY
RAM
9
+5V+SWI
UART_TX A13
OCM_OD0
UART_RX A13
OCM_OD1
SCL A2
VGA_SCL
SDA A2
VGA_SDA
TV_IRQ A2
GPIO_G09_B4
PC_HDMI-AUDIO_SEL
A12
GPIO_G07_B0
SD_HD_SEL A13
GPIO_G07_B5
A13
PC_HD_SEL
GPIO_G09_B0
A14
PANEL-PWR-CTL
PPWR
A13
HD_FILTER
PWM1
LAMP_ON-OFF A6
PBIAS
** FOR 17" ONLY
4445** * FOR 23" & 26"
3452*
BU_LIGHT_ADJ1 A6
3444*
7449*
OCM_TIMER1
ADDRESS
FLASH
ROM
DATA
TO LVDS
CONNECTOR
LCD PANEL
FOR SETS
WITHOUT
PIXEL+
PIXEL+
PANEL
EPLD I/O
1403
1,2
PAN_VCC
3,4,5
TXB0- 6
TXB3+
7
TXB0+ 8
7403
TXB3- 9
THC63LVDM83R
10,11
LVDS
TXB1-
12
TRANS-
TXB1+ 14
MITTER
TXBC+ 15
13,16
TXBC- 17
SDA TXB2- 18
19
SCL TXB2+ 20
RESET_IN
SYNC_OUT
POWER
PP4
7504
SUPPLY F521
SI2307D5
+3V3
SDA
1
7501
LF15ABDT
F503
SCL 7505
3
+1V1
RESET_IN
4
SYNC_OUT
5
7 +3V3_IN
9 +5
+5V
1304
1
3
2
A 1 A 3
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