Magnavox ZC352MW8, Service Manual

Page: 18 / 59

1-9-1
BLOCK DIAGRAMS
System Control Block Diagram
IC101 (MAIN MICR
O CONTR
O
LLER)
IC101 (DTV SIGNAL PR
OCESS)
IC1501 (SUB MICR
O CONTR
OLLER)
REMO
T
E
SENSOR
RE2001
RESET
EV+3.3V
IC1502
A
V
CB
A
SW CB
A
D
VD MAIN CB
A UNIT
DTV MODULE CB
A UNIT
27
3
52 53
38 40 39 33 34
22 19 18 20 29
38 28
155 154 153 204
M25
L28
M26 M29 R25
8 9
41 12
14 30
7
1
2
11
EV+3.3V
27MHz X'T
AL
X552
CLK 27 IN
CLK 27 OUT SYS-RESET
SUB-RXD
SUB-TXD
SUB-SCLK
RD
Y
CN701
SYS-RESET
SUB-RXD
SUB-TXD SUB-SCLK RD
Y
CN1101
PO
W
-SW
REG-CONT PWSW VIDEO-SW1
A
U
DIO-MUTE
A
U
DIO-SW1
A
U
DIO-SW2
SD
A
SCL
X OUT X IN XC OUT XC IN
RESET
P-DO
WN
VCC
REMO
T
E
PO
W
-SW
REG-CONT PWSW
VIDEO-SW1
SD
A
SCL
A
U
DIO-MUTE
A
U
DIO-SW1
A
U
DIO-SW2
SD
A
SCL
T
O
PO
WER SUPPL
Y
BLOCK DIA
GRAM
T
O
VIDEO/A
UDIO
BLOCK DIA
GRAM
TO
A
U
D
IO
BLOCK DIA
GRAM
8MHz RESONA
T
OR
X1501
32.768KHz X'T
AL
X1502
Q1501
Q1502
C1501
(BA
C
KUP CAP
A
CIT
OR)
KEY SWITCH
CN1062
CN1061
KEY
-1
3
3
2 1
KEY
-2
KEY
-1
Y2
T
O
DTV MODULE
BLOCK DIA
GRAM
EV+5V
OPEN/CLOSE
SW3011
42
VIDEO-SW2
VIDEO-SW2
43
VIDEO-SW3
VIDEO-SW3
44
VIDEO-MUTE
VIDEO-MUTE
Y1
44
SYS-RESET
11
SUB-RXD
33
SUB-TXD
55
SUB-SCLK
22
RD
Y
M30 P28 N27 N25 P30
DTV
-S-SREQ
DTV
-S-SCLK
DTV
-S-SIN
DTV
-S-SOUT
DTV
-S-RESET
DTV
-S-SREQ
DTV
-S-SCLK
DTV
-S-SIN
DTV
-S-SOUT
DTV
-S-RESET
CN501
CN1753
61
DTV
-S-SREQ
52
DTV
-S-SCLK
43
DTV
-S-SIN
34
DTV
-S-SOUT
25
DTV
-S-RESET
IC106
CN101
CN1051
26
1V2CONT
EV+1.2V
P-ON+1.2V
30
30
1V2CONT
+1.2V REGULA
T
OR
SYS-RESET
CN1751
CN101
12
12
10
10
9
9
8
8
7
7
DTV
-S-SREQ
DTV
-S-SCLK
DTV
-S-SIN
DTV
-S-SOUT
DTV
-S-RESET
ICF09 (HDMI INTERF
A
CE)
SD
A
IC1757
5
SCL
6
(MEMOR
Y)
KEY SWITCH
KEY
-2
5
5
LED2
D2003
REC
TIMER
D2002 D2001
LED3
58 59
LED1
60
PO
WER
E7C50BLS