Philips MCD706, Руководство по обслуживанию

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10 - 4
10 - 4
EJS89D1
8
Audio
DA
C
The
original
released.
MT1389
E
Audio
5V
DEVICE
Date
DVD
D
TYP
E
Digital
1.8V
Digital
3.3V
2
RF,
SERVO
&
MPEG
-
MT1389E
OP
AMP
.
NAME DV33
History
Audio
+12V
Digital
5V
Audio
DA
C
Servo
3.3V
Rev
Audio
5V
MT1389E
VCC
V1
Digital
3.3V
SDRA
M
RFV3
3
SD3
3
AVDD
P#
1
INDEX
&
POWER,
RESET
MT1389
E
4
VIDEO
OUT
SUPPLY
3
MEMORY
-
SDRAM,
FLASH/EEPROM
V18 +12
V
-12
V
Audio
-12V
OP
AMP.
LDO_AV33
Laser
Diode
3.3V
Power
ON
alive
source
AVC
C
PICKUP
HEADER
RF
5V
5
AUDIO
DAC
WMA8746&WMA8720
AND
AUDIO
OUT
V2
Change
CE11
from
10uF
to
100uF
Change
R10,r15
from
750k
to
680k
Change
C3
from
C
to
2
200pF
Add
C74
2200p
F
Change
C2
from
0.1uF
to
C
Change
R17,R19
from
390k
to
150k
Change
R38
from
0
to
R
Change
R37
from
0
to
R
Change
PIN
47
from
LIMIT
to
ADIN
Change
C32
from
15nF
to
C
Add
CE1
10u
F
Change
R15
from
1.5k
to
1.8k
Remove
74H0
4
Change
the
LIMIT
s
i
ngal
from
PIN
46
to
PIN
1
3
6
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2
2003.6.15 2003.7.17
Change
R4,R5,R6,R8,R12
from
1k
to
R
Chang
the
TRIN&TROUT
pull
2
Change
R67
from
R
to
10k
high
power
from
5V
to
3V3
2
Change
spdif
output
port
3 4
Add
LC
circui
t
2 5
Add
the
low
resistance
output
c
ircuit
5
Add
the
Audio
DAC
power
to
reference
filtering
1.USE 1117-1.8V,R169 OPEN
,R170
0,D1
D2
OPEN
2.USE
1117-ADJ
R169
2.4K
,R170
1K,D1
D2
O
PEN
3.USE
D1
D2
,U1
R169
R170
OPEN
URST# V18
DV33 VCC
-12V +12V
AVCC
VCC
V33
VCC_AUDIO
URST#
POWER_STB MIC2 MIC_EN LDO_AV33 RFVCC
+12V1
DV33
V33
V33
GND
V18
+P5V
+P12V
PV33
RFV33
+5VV
SDA SCL
URST#
[ 2 ]
V18
[ 2 ]
DV33
[ 2,3,4,5 ]
VCC
[ 2,3,4,5 ]
+12V
[ 4,5 ]
-12V
[ 4,5 ]
AVCC
[ 2 ]
GND
[ 2,3,4,5 ]
VCC_AUDIO
[ 5 ]
POWER_STB
[ 2
]
MIC2
[ 5 ]
MIC_EN
[ 2,5
]
LDO_AV33
[ 2 ]
RFVCC
[ 2 ]
+12V1
[ 5 ]
RFV33
DV33
AVCC
VCC
VCC
VCC
VCC
VCC_AUDIO
VCC
VCC
V33
V33
V33
V18
V33 VCC
+12V
+5VV
VCC
V33
DV33
L6 4.7
R9 10k
Q30 9014
+
CE9 220uF/10V
TP2
9
J4 5x1 W/HOUSING DIP5/W/H/P2.0
1 2 3 4 5
L5
FB
L10
JUP
L36
FB
TP26
R169 2.2k R170 1k
CB10 0.1uF
L2 FB
CB67 0.1uF
TP2
8
CB4 0.1uF
+
CE12 100uF/10V
CB5 0.1uF
+
CE33 100uF/10V
+
CE8 10uF/16V
U2 NC/1117-3V3
3
1 2
VI
GND
VO
U1
AZ1117H-ADJ SOT22
3
1
2
3
GND
OUT
IN
CB12 0.1uF
CB2 0.1uF
CB14 0.1uF
L8 FB
L30
FB
+
CE34 100uF/10V
R57 1K
+
CE4 100uF/10V U12 24C02
1 2 3
4 5 6
7
8
NC NC NC
GND SDA SCL
WP
VCC
CB13 0.1uF
CB8 0.1uF
+
CE2 100uF/10V
+
CE14 220uF/16V
R69
680
MD2
OPEN/1N4001
R59 10k
R68
680
CB1 0.1uF
TP2
3
CB13 0.1uF
MD1
OPEN/1N4001
L7 FB/1206
TP7
9
D4 NC
1 2
CIRCUIT DIAGRAM -
DVD MPEG BOARD
MPEG board is not repaired,program for referrence only
.