Philips MCD735/37 - Page 28

11 - 411 - 4
EJS89D18
AudioDAC
Theoriginalreleased.
MT1389E
Audio5V
DEVICE
Date
DVDD
TYPE
Digital1.8V
Digital3.3V
2RF,SERVO&MPEG-MT1389E
OPAMP.
NAME
DV33
History
Audio+12V
Digital5V
AudioDAC
Servo3.3V
Rev
Audio5V
MT1389E
VCC
V1
Digital3.3V
SDRAM
RFV33
SD33
AVDD
P#
1INDEX&POWER,RESET
MT1389E
4VIDEOOUT
SUPPLY
3MEMORY-SDRAM,FLASH/EEPROM
V18
+12V
-12V
Audio-12V
OPAMP.
LDO_AV33 LaserDiode 3.3V
PowerONalivesource
AVCC
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2200pF
AddC742200pF
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10uF
ChangeR15from1.5kto1.8k
Remove74H04
ChangetheLIMITsingalfromPIN46toPIN136
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circuit
2
5
Addthelowresistanceoutputcircuit
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OPEN
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
TP29
J4
5x1 W/HOUSING
DIP5/W/H/P2.0
1
2
3
4
5
L5FB
L10JUP
L36
FB
TP26
R169
2.2k
R170
1k
CB10
0.1uF
L2
FB
CB67
0.1uF
TP28
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
SOT223
1
23
GND
OUTIN
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
TP23
CB13
0.1uF
MD1
OPEN/1N4001
L7
FB/1206
TP79
D4
NC
1 2
CIRCUIT DIAGRAM - DVD MPEG BOARD
MPEG board is not repaired,program for referrence only.