Magnavox MWR20V6 Service Manual

1-11-1
BLOCK DIAGRAMS
System Control Block Diagram
E9A80BLS
86
KEY- 2 KEY- 1
S-DATA-OUT
SYS-RESET
S-DATA-IN
S-CLK
READY/BUSY
POWER
CN2212
CN2211
D561
POWER
SW601
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
CN2210
CN2209
OPEN/CLOSE
SW615
DUBBING
SW617
4
SYS-RESET
2
RDY
3
SUB-TXD
1
SUB-RXD
5
SUB-SCLK
4 2 3 1 5
CN201
CN2204
Q510
Q509
X552
CN701
CN101
BUFFER
27MH
Z
X'TAL
SYS-RESET RDY SUB-TXD SUB-RXD SUB-SCLK CLK27 OUT CLK27 IN
IC101
IC106
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
IC501 (SYSTEM CONTROL)
IC571 (FIP DRIVER)
6
25
23 98 83 24 50
29 31
Q501
RESET
TIMER+5V
P-ON-L PWR-SW
27 43 91
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
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
FIP
STB DIN
8
REMOTE-VIDEO
5
REMOTE SENSOR
RS501
FIP501
2
28
1
21
22 23
18
17 19 20
9
8 7
12
13
14 16
11 10
IIC-BUS SCL
IIC-BUS SDA
60 61
AUDIO-SW1 AUDIO-SW2
56
DVD-AUDIO-MUTE
AUDIO-SW1 AUDIO-SW2
DVD-AUDIO-MUTE
59
VIDEO-SW1 VIDEO-SW2
57
VIDEO-SW3
58
VIDEO-SW1 VIDEO-SW2 VIDEO-SW3
FAN-CONT1
P-ON-L PWR-SW FAN-CONT1
DVD MAIN CBA
97
94
92
DVD-LED
D562 DVD
D563 VCR
VCR-LED
95
VCR-LED
96
DVD-LED
POWER-LED
93
POWER-LED
AL+5V
J25
SYS-RESET
T4
N24 N23
L25
R24
N2
N1
13 44 12 11
2
REG-CONT2
45
MAIN CBA
30
REG-CONT2
30
REG-CONT1
46
1
P-DOWN-H
REG-CONT1 P-DOWN-H
+1.2V REGULATOR
P-ON+1.2VEV+2.4V

Magnavox MWR20V6 Specifications

General

Brand	Magnavox
Model	MWR20V6
Category	DVD VCR Combo
Language	English