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

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1-10-3
T0102MCBLA
Audio Block Diagram
REC AMP
9
8
AU
T
O
BIAS
11
P-ON+5V
P-ON+5V
Q1871
BIAS OSC
Q1872
Q1873 (PB=ON)
Q1874 (PB=ON)
Q1875
SWITCHING D-REC OFF
6
5
3
EQ AMP
SP/LP-ON
P
R
ALC
REAR
TUNER
FR
ONT
IC1401 (A
UDIO SIGNAL PR
OCESS)
76
4
A-PB/REC
CL1402
CN1301
CN2
CN2503
3
A-COM
1
AE-H
2
FE-H
A
UDIO
HEAD A
UDIO
ERASE HEAD
FE HEAD
(DECK ASSEMBLY)
1
FE-H
2
FE-H-GND
CL403
MAIN CB
A SUB CB
A
Mode : SP/REC
D-REC-H
T
O
D
VD
A
UDIO
BLOCK DIA
GRAM
<D
VD
SECTION> CN2A
FULL ERASE HEAD
78
80
4
LINE AMP
LPF
MUTE
10
SERIAL I/F
55
54
53
YCA-CS
YCA-SD
A
YCA-SCL
58
A
UDIO-MUTE
JK1801 HEADPHONE JA
C
K
SPEAKER R-CH
CN1802
CN1803
SP1801
FUNCTION CB
A
SPEAKER L-CH
CN2801
CN2401
SP801
SP(R)
1
SP-GND
2
SP(L)
1
SP-GND
2
44
SP(L)
CL1802
CL2801
D
V
D-A
UDIO-MUTE
SP-MUTE
15
15
D
V
D-A
UDIO(R)
14
7 61
4
D
V
D-A
UDIO(L)
T
O
Hi-Fi A
UDIO
BLOCK DIA
GRAM
16
5 9
16
D
V
D-A
UDIO-MUTE
A
U
DIO-OUT(R)
A
U
DIO-OUT(L)
N-A-IN N-A-OUT
JK2601
TP1002
WF19
WF20
TP1001
DVD-AUDIO-L
WF8
WF7
PB A
UDIO SIGNAL
D
VD A
UDIO SIGNAL
REC A
UDIO SIGNAL
D
A
T
A(A
UDIO) SIGNAL
DIGIT
AL
A-OUT (CO
XIAL)
DVD-AUDIO-R
TO SYSTEM CONTROL/SERVO BLOCK DIAGRAM
TO SYSTEM CONTROL/SERVO BLOCK DIAGRAM
2
11
IC1803
(A
UDIO AMP)
7
V
OLUME
14
1
AMP AMP
MUTE /ST
ANDBY
CONTR
OL
3 6 8
DV
D
DV
D
VCR VCR
(L-CH) (R-CH)
2
12
D
VD-H
V
OLUME
A
CE HEAD ASSEMBLY
“
“ = 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
.)
TEST POINT INFORMA
TION
:INDICA
TES A
TEST POINT
WITH A JUMPER
WIRE A
C
R
OSS A HOLE IN
THE PCB
.
:USED
T
O
INDICA
TE A
TEST POINT
WITH A COMPONENT LEAD ON FOIL SIDE.
:USED
T
O
INDICA
TE A
TEST POINT
WITH NO
TEST PIN.
:USED
T
O
INDICA
TE A
TEST POINT
WITH A
TEST PIN.