Magnavox 19MDTR20 - Dvd-video Player, Руководство по обслуживанию

Страница: 323 / 399

1-10-8
BLOCK DIAGRAMS < DVD Section >
DVD System Control / Servo Block Diagram
T0102MCBLSD
12 11 10
D
V
D-REMO
TE
13
CN1A
S
D
ATA
CS
60 61 67
D
V
D-REMO
TE
FP-CLK
FP-DIN
FP-DOUT
59
D
VD MAIN CB
A UNIT
DRIVE CB
A
IC301
(SER
V
O
DRIVE)
CN301
M
SLED MOTOR
M
SPINDLE MOTOR
IC101
(MICR
O CONTR
OLLER)
+ -
+
-
+
-
+
-
+
-
+
-
+
-
SLED MO
T
O
R
DRIVE
FOCUS AC
T
U
A
T
O
R
DRIVE
SPINDLE MO
T
O
R
DRIVE
TRA
CKING
AC
T
U
A
T
O
R
DRIVE
147
TRA
Y
-IN
SLD
75
SPDL
76
TRA
CKING
DRIVE
148
FOCUS DRIVE
66
T
O
DIGIT
AL SIGNAL
PR
OCESS BLOCK
DIA
GRAM
FS(+)
FS(-) TS(+) TS(-)
T
O
D
VD A
UDIO
BLOCK DIA
GRAM
57
AD
A
C-MD
56
AD
A
C-MC
86
AD
A
C-ML
AD
A
C-MC
AD
A
C-ML
PCM-SCLK
88
A
UDIO-MUTE
AD
A
C-MD
A
U
DIO-MUTE
163
PCM-SCLK
TRA
Y
-IN
3
SP(+)
4
SP(-)
5
TRAY-IN
6
GND
7
SL(-)
8
SL(+)
VREF
RESET
T
O
SYSTEM CONTR
O
L
/SER
V
O
BLOCK
DIA
GRAM
<TC/VCR SECTION> CN1
73
RESET
IC462
1
3
+3.3V
15 16 14 13 12 11 17 18
23
6 4 5 3 1 2
25 24 27 26
81
SL-AMP
143
SP-R
O
T
+3.3V
146
FD-OFST
139
TD-OFST
SCLK
RESET
IC461
2
1
PWRCON
PWRCON
70
IC202 (OP AMP)
1
2 6
7
5 3
13
14
12
Q003
Q002
Q001
SL-ADS
140
+3.3V
*
1
T
O
PO
WER SUPPL
Y
BLOCK DIA
GARAM
<TV/VCR SECTION>
“
“ = SMD
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)
1 NOTE:
Either IC461 or IC462 is used for DVD MAIN CBA UNIT.