
Block Diagrams, Testpoint Overviews, and Waveforms
EN 17
LC4.1U AA
6.
Block Diagram Scaler & Supply
ADDRESS
N.C.
A8
DDC
NVM
7462
6
5
8
DCC_VGA_5V
+5VSW
1
5
11
15
R_PR-
G_Y-
B_PB-
u-Processor
KEYBOARD
STATU S_1
SEL_IF
SOUND_ENABLE
PC-TV-LED
SCL
SDA
IR
EXT_MUTE
TV_SC_COM
TV_IRQ
NV
2k x 8
M
NVM_WP
SDM PINS
7099
HERCULES
IC
7011
A2
HERCULES (CONTROL)
A3
HERCULES (SUPPLY)
A7
A2
A3
A3
A7
A2
A2
A1
A3
A3
A5
A5
A3
A4
A4
A5
A1
A7
A8
A3
A7
DATA
P50_LINE_ITV_IR_SW
5
6
7
104
108
109
107
111
114
102
99
98
120
115
97
116
119
123
STANDBY
122
S Q
R
OSC
REF
5
1
2
3
4
2931
+5
+8VSW_TV
VSW
VCC
6
7
7930
3910
3931
69
3937
3936
7936
30
59
31
8
TV-SUPPLY
A5
2921
7920
1
3
2
6911
6910
7910
A7
SCALER (LVDS, TTL OUT)
A6
SCALER (ANA IN)
D
SIDE AV
(UART PART)
127
+1V8_B
3,93,96
100,117,118,124
14
+3V3STBY
+1V8_A
DECDIG
P1.4
+5VSW
4,5,7,9,88,90,94
15,69,82
+3V3STBY
7070
7001,7003
+1V8_B
+1V8_A
126
POWER_DOWN
128
PCHD-IO
2007
1001
2006
10
11
F913
F912
F954
7463
H_CS_SDTV
V_SDTV
VS
HS
SD_PCHD_SEL
7510
1
2
3
4
5
6 9
8
13
12
1
3
14
15
10,11
HD_FILT ER
7461
R_PR+
G_Y+
B_PB+
23
17
14
11
R_SDTV
G_SDTV
B_SDTV
RED_PR
GREEN_Y
BLU_PB
CS_HSYNC
VSYNC
27
2
7
25
1
5
21
SOG
SD_PCHD_SEL
22
PC_HD_SEL
3497
3499
3479
2466
2468
2470
TOP CONTROL
E
2
2
5x
1308
KEYBOARD
KEYBOARD
IR
LED_SEL
PC_TV_LED
1008
C
CHANNEL-
VOLUME-
POWER
KEYBOARD
FRONT IR/LED
J
HERCULES
(FRONT CONTROL LOOP THROUGH)
A3
SUPPLY
A9
1870
RC
RECEIVER
1
2
7802
3
4
5
6
N.C.
IR
LED_SEL
+3V3STBY
+3V3STBY
PC_TV_LED
+3V3STBY
1007
1
2
3
4
5
6
A9
A5
A2
ANALOG
INPUT
PORT
+
TRIPLE
ADC
&
PLL
DVI
INPUT
VIDEO
ROM
INTERFACE
CLK_SYN
SYSTEM
LVDS
Tx
5930
2997
7955
3
2
1
5920
+VTUN
F911
DECDIG
HERC_RESET
F014
F903
F905
F906
F907
F015
STANDBY
1910
1
2
3
4
5
6
7
8
9
10
A2
AUD_SUP
FROM
SUPPLY
PANEL
+3V3STBY
+3V3STBY
+12VSW
POWER_DOWN
A2
A3
A4
BACK_LIGHT_ADJ1
11
A7
LAMP_ON_OFF
12
A7
5910
5932
+3V3STBY
+1V8
7401
GM5221
FBIN
FBIN
LV_E0_TX0-
LV
LV_E0_TX0-
LV
SDA_IO
Y_NOTCH
Y_NOTCH
FLASH
ROM
512kx8
CLOCK
RECOVERY
PLL
7403
M29W040B-55k1
EEPROM
(NVM)
4kx8
7402
M24C32
1403
14M31818
169
170
SCL_IO
WC
3430
SDA
3431
3123
3124
3442
3441
SCL
JTAG_SDL_UART_TX
JTAG_SCL_UART_RX
1111
1401
1
2
3
4
1
2
3
4
1112
1
2
3
+3V3STBY
+3V3STBY
UART
CONN.
FOR
SERVICE
F499
F503
1
2
3
9
12
13
14
15
22
21
1404
3
2
1
4
F534
PAN_VCC
EG1
EG0
LV_E2_TX1-
LV
LV_E2_TX1-
LV
20
19
6
8
ER7
ER6
LV_E4_TX2-
LV
LV_E4_TX2-
LV
18
17
10
12
ER5
ER4
LV_E8_TX3-
LV
LV_E6_TX3-
LV
14
13
18
20
ER1
ER0
LV_E6_TXC-
LV
LV_O0
LV_O1
LV_E8_TXC-
LV
16
15
38
37
14
16
ER3
ER2
EB3
EB2
LV_O2
LV_O3
36
35
EB1
EB0
LV_O4
LV_O5
34
33
EG7
EG6
LV_O6
LV_O7
32
31
EG5
EG4
LV_O8
LV_O9
30
29
EG3
EG2
PD20
43
EB4
PD21
44
EB5
PD22
45
EB6
PD23
46
EB7
FED
47
48
49
FHSYNC
FVSYNC
FSHCLK
FHSYNC
FVSYNC
FSSYNC
PAN_VCC
55
67
PANEL_PWR_CTL
LAMP_ON_OFF
68
A2
A2
81
TV_SC_COM
TV_IRQ
82
T
o
LCD MONIT
OR (L
VDS)
1402
19
17
1
21
23
25
27
29
31
33
35
37
T
o
LCD MONIT
OR (TTL)
(MAINL
Y FOR 20”)
24x
A6
FBIN
83
A8
A8
PC_DET
85
A8
A3
A5
SD_PCHD_SEL
88
A2
POWER_DOWN
90
A5
BACK_LIGHT_ADJ1
BACK_LIGHT_ADJ2
98
A5
100
A8
PLL_SEL
101
VGA_5V
PC_DET
RED_PR
GREEN_Y
BLUE_PB
SDA
HS
VS
SCL
VGA_5V
6460
3470
7803
7804
7801
6801
RED
GREEN
3802
FROM
see
blockdiagram
VIDEO
7060
6060
3062
+5VSW
+3V3STBY
HERC_RESET
DECDIG
6073
6076
12
PLL_SEL
PLL_SEL
H_CS_SDTV
2
7520
MK1575-01
7437
39
42
FED
38,36
4015
1
A7
A7
E_14520_033.eps
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