1-12-1
BLOCK DIAGRAMS
E9H90BLS
“ “ = SMD
System Control Block Diagram
86
KEY- 2
KEY- 1
S-DATA-OUT
SYS-RESET
S-DATA-IN
S-CLK
READY/BUSY
POWER
CN2212
CN2211
D1561
POWER
SW1601
KEY SWITCH
(VCR)
KEY SWITCH
(DVD)
TP502 S-INH
44
POWER-SW
11
AL+5V
22
POWER-LED
POWER SW CBA
DVD OPEN/CLOSE
SW CBA
CN2210CN2209
OPEN/CLOSE
SW1615
DUBBING
SW1617
27
SYS-RESET
29
RDY
28
SUB-TXD
30
SUB-RXD
26
SUB-SCLK
27
29
28
30
26
CN2201
Q1510
Q1509
CN701
BUFFER
SYS-RESET
RDY
SUB-TXD
SUB-RXD
SUB-SCLK
IC101
IC107
MAIN MICRO
CONTROLLER
22
OPEN/CLOSE-SW
11
DUBBING-SW
85
AL+5V
RF-SW
D-V SYNC
C-SYNC-IN
V-ENV
DISPLAY-ENA
RESET
C-ROTA
D-REC
D-REC
VCR-AUDIO-MUTE
AUDIO-MUTE
AUDIO-MUTE
RF-SW
D-V SYNC
C-SYNC
V-ENV
C-ROTA
IC1501
(SYSTEM CONTROL)
IC1571
(VFD DRIVER)
6
25
23
98
83
24
50
29
31
Q1501
RESET
TIMER+5V
P-ON-L
PWR-SW
27
43
77
H-A-SW
99
H-A-SW
H-A-COMP
100
H-A-COMP
55
OUTPUT-SELECT
YCA-SCL
YCA-SDA
YCA-CS
YCA-SCL
19
YCA-SDA
20
YCA-CS
21
YCA-SCL
YCA-SDA
YCA-CS
TO VIDEO
BLOCK DIAGRAM
TO VIDEO OUTPUT SELECT
BLOCK DIAGRAM
TO VIDEO INPUT SELECT
BLOCK DIAGRAM
TO AUDIO INPUT/OUTPUT
SELECT BLOCK DIAGRAM
TO AUDIO
BLOCK DIAGRAM
TO Hi-Fi AUDIO
BLOCK
DIAGRAM
TO POWER SUPPLY
BLOCK DIAGRAM
IIC-BUS SDA
IIC-BUS SCL
17
18
IIC-BUS SCL
IIC-BUS SDA
NORMAL-L
78
Hi-Fi-H-SW
Hi-Fi/NOR-IN
Hi-Fi-H-SW
30
OUTPUT-SELECT
OUTPUT-SELECT
DISPLAY-DATA
7
DISPLAY-CLK
CLK
1G
2G
4G
5G
6G
7G
a
b
c
d
e
f
h
i
g
3G
GRID
SEGMENT
VFD
STB
DIN
8
REMOTE
5
REMOTE
SENSOR
RS1501
FL1501
2
28
1
21
22
23
18
17
19
20
9
8
7
12
13
14
16
11
10
60
61
AUDIO-SW1
AUDIO-SW2
AUDIO-SW1
AUDIO-SW2
59
VIDEO-SW1
VIDEO-SW2
57
VIDEO-SW3
62
58
VIDEO-SW1
VIDEO-SW2
VIDEO-SW3
DTV/ANALOG
DTV/ANALOG
FAN-CONT
P-ON-L
PWR-SW
FAN-CONT
DVD MAIN CBA UNIT
97
94
92
DVD-LED
D1562
DVD
D1563
VCR
VCR-LED
95
VCR-LED
96
DVD-LED
POWER-LED
93
POWER-LED
AL+5V
R25
SYS-RESET
R2
W26
V25
P22
B4
13
44
12
11
2
1
2
MAIN CBA
DTV/ANALOG
REG-CONT1
46
45
1
REG-CONT2
P-DOWN-H
REG-CONT1
REG-CONT2
P-DOWN-H
RESET
+1.8V
IIC-BUS SDA
IIC-BUS SCL
DTV/ANALOG
DTV-S-SREQ
DTV-S-SCLK
DTV-S-SIN
DTV-S-SOUT
DTV-S-RESET
6
DTV-S-SREQ
2
DTV-S-RESET
5
DTV-S-SCLK
4DTV-S-SIN
3
DTV-S-SOUT
6
2
5
4
3
CN5003 CN502
7
DTV-S-SREQ
12
DTV-S-RESET
8
DTV-S-SCLK
9DTV-S-SIN
10
DTV-S-SOUT
7
12
8
9
10
CN101 CN5005
7
IIC-BUS SDA
6
IIC-BUS SCL
2
DTV/ANALOG
7
6
2
CN2610 CN5007
TO DTV MODULE
BLOCK DIAGRAM
DTV-S-SREQ
DTV-S-SCLK
DTV-S-SIN
DTV-S-SOUT
DTV-RESET
DTV MODULE CBA UNIT TUNER CBA
R22
A4
R23
U22
W25
IC101
(DTV SIGNAL PROCESS)
38
155
154
153
204
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
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