Service manual
ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC7501
DV1000-75
VIDEO_ENHANCER
101102103104105106107108109110111112113114115116117118119120121122123124125126127128
110
100
11 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28 293 30 31 32
33 34 35 36 37 38 39
4
40 41 42 43 44 45 46 47 48 49
5
50
51 52 53 54 55 56 57 58 59
6
60 61 62 63 64
6566676869
7
70717273747576777879
8
80818283848586878889
9
90919293949596
979899
X7501
20MHz
OSC
12
34
L7502
47uH
NLCV32T
C7521
476.3V V-S
C7519
476.3V V-S
B7501
BLM18BB600SN1
B7502
BLM18PG181SN1D
NR7503
4D03WGJ0470T5E
NR7504
4D03WGJ0470T5E
NR7505
4D03WGJ0470T5E
NR7506
4D03WGJ0470T5E
NR7501
4D03WGJ0470T5E
NR7502
4D03WGJ0470T5E
W854
W869
W870
W871
W988
W989
W974
W975
W973
W872
C7506
0.1 B
C7507
0.1 B
C7511
0.1 B
C7508
0.1 B
C7510
0.1 B
C7509
0.1 B
C7516
0.1 B
C7512
0.1 B
C7518
0.1 B
C7515
0.1 B
C7514
0.1 B
C7504
0.1 B
C7503
0.1 B
C7502
0.1 B
C7513
0.1 B
C7505
0.1 B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R7512
47
R7508
47
R7506
47
R7510
100
R7509
100
R7513
33
R7505
33
R7507
33
JG7508
JG7500
JG7507
JG7506
JG7512
JG7511
JG7509
JG7510
JG7505
JG7514
JG7513
JG7504
JG7515
JG7502
JG7503
JG7501
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
DGO9
DGO8
DGO7
DGO6
DGO5
DGO4
DGO3
DGO2
DEN
DHS
DVS
DV1000_RESET
DBO9
DBO8
DV1000_RESET
DBO7
SDA1
DBO6
SCL1
DBO5
DBO4
DBO3
DBO2
DB9
DGO9
DGO8
DGO7
DGO6
DGO5
DB8
DGO4
DB7
DGO3
DB6
DGO2
DB5
DRO9
DB4
DRO8
DB3
DRO7
DRO6
DB2
DRO5
DRO4
DRO3
DRO2
DCLK2
DHS
DHS
DVS
DVS
DENO
SDA1
DEN
SCL1
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DRO9
DB2
DRO8
DRO7
DRO6
DG9
DBO2
DBO3
DG8
DBO4
DG7
DBO5
DG6
DG5
DRO5
DRO4
DG4
DRO3
DG3
DRO2
DG2
DBO6
DBO7
DR9
DBO8
DR8
DBO9
DR7
DR6
DR5
DR4
DR3
DR2
P.CON+1.8V
P.CON+3.3V
GND
DENO
DVS1
DHS1
DCLK2
DR2
DR3
DR4
DR5
DR6
DR7
DR8
DR9
DG2
DG3
DG4
DG5
DG6
DG7
DG8
DG9
(SCALER PCB)
H-26
H-25
PCBDS0
CEF156
ADC2 SCHEMATIC DIAGRAM
VSS
VSS
VSS
003.31.803.33.33.33.3000003.31.83.33.33.33.303.33.33.33.3
0
0
R_CR_IN2
R_CR_IN3
R_CR_IN4
R_CR_IN5
R_CR_IN6
R_CR_IN7
R_CR_IN8
R_CR_IN9
G_Y_IN0
G_Y_IN1
G_Y_IN2
G_Y_IN3
G_Y_IN4
G_Y_IN5
G_Y_IN6
G_Y_IN7
B_CB_CRCB_IN0
B_CB_CRCB_IN1
B_CB_CRCB_IN2
B_CB_CRCB_IN3
B_CB_CRCB_IN4
B_CB_CRCB_IN5
B_CB_CRCB_IN6
B_CB_CRCB_IN7
R_CR_OUT2
R_CR_OUT3
R_CR_OUT4
R_CR_OUT5
R_CR_OUT6
R_CR_OUT7
R_CR_OUT8
R_CR_OUT9
G_Y_OUT0
G_Y_OUT1
G_Y_OUT2
G_Y_OUT3
G_Y_OUT4
G_Y_OUT5
G_Y_OUT6
G_Y_OUT7
B_CB_CRCB_OUT0
B_CB_CRCB_OUT1
B_CB_CRCB_OUT2
B_CB_CRCB_OUT3
B_CB_CRCB_OUT4
B_CB_CRCB_OUT5
B_CB_CRCB_OUT6
B_CB_CRCB_OUT7
B_CB_CRCB_OUT8
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VCC_BUF
VCC_BUF
VCC_BUF
VCC_BUF
VCC_BUF
VCC_BUF
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_BUF
VCC_CORE
TEST_MODE0
TEST_MODE1
TEST_MODE2
TEST_MODE3
TEST_OUT
SC_ADD_CTRL_IN
SC_ADD_CTRL_IN
SC_ADD_CTRL_IN
95 G_Y_OUT8
96 G_Y_OUT9
97 SC_ADD_CTRL_IN
98 SC_ADD_CTRL_IN
TEST_IN
SCL
SDA
CLK_SYSTEM
OUTPUT_ENABLE_N_IN
VSYNC_OUT
HSYNC_OUT
WINDOW_ENABLE_OUT
FIELD_OUT
VBLANK_OUT
HBLANK_OUT
VSYNC_IN
TEST_IN
SC_ADD_10BIT_7BIT_N_IN
WINDOW_ENABLE_IN
RESET_N_IN
HSYNC_IN
FIELD_IN
VBLANK_IN
HBLANK_IN
PROCESS_CONTROL_IN
PROCESS_CONTROL_IN
CLK_VIDEO
CLARITY_IN7
65 B_CB_CRCB_IN9
63 B_CB_CRCB_IN8
64 VCC_BUF
66 CLARITY_IN0
67 CLARITY_IN1
68 CLARITY_IN2
CLARITY_IN3
CLARITY_IN4
CLARITY_IN5
CLARITY_IN6
NC
127 B_CB_CRCB_OUT9
2 R_CR_IN1
1 R_CR_IN0
128 VSS
31 G_Y_IN8
32 G_Y_IN9
33 R_CR_OUT0
34 R_CR_OUT1
FROM/TO REGULATOR
FROM/TO LVDS
FROM/TO MICON
FROM/TO SCALER
0 0 3.1 3.1 3.1 0 3.1 3.1 3.1 3.1 3.1 03.3 0 0 0 3.4 3.3 3.3 3.3 1.8 0 3.30 3.3 3.3 3.3 0 3.3 3.3 3.3 3.3
0
0
3.3
1.8
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
0
3.3
0
3.3
3.3
3.3
0
1.8
0
0
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3000000
3.3
0
0
3.3
0
3.3
0
0
3.3
1.8
0
0
3.3
0
0
0
0
0
1.8
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
0