Philips MCD110 Service Manual page 21

Decoder Board -- Circuit Diagram
L201
LD-DVD
10uH
Q201
2SB1132
CE201
R201 6.8 47uF/6.3V
R202 6.8
V33
CE202
Q202
2SB1132 47uF/6.3V
L202
LD-CD
10uH
R205
SP-
10K
D201 1N4148
C201
R204 0.1uF
1
C202
D202 1N4148
R203 R206
0.1uF
SP -A
0 10K
CON202
1 SP -A
2 SP+
3 TROUT/LIMIT
4
R217R218
5 SL-
C209
6 SL+
PH-6A
C205 C206
0.1uF 0.1uF
24
GND-LD
# CE205is very important
23 LD-DVD
DVD_LD
to reducethe noise .
22
(NC)
21 AVCC5
HFM
20 MDI
MD
19 LD-CD
CD_LD
18 R217 100
VR_DVD
17 R218 100
VR_CD
16
(NC)
15 E
E
14
VCC
13 V20 C208 0.1uF
VREF
12 GND
GND_PD
11 F
F
10 B
B/b
9 A
C209
A/a
8 RFO
RF
7 IOA/TROPEN
CD/DVD NC/120 pF
6 D
D/d
5 C
C/c
4 T-
T-
3 T+
T+
2 F+
F+
1 F-
F-
CON201
24PIN-0.5A
8-2
R208
LDO_DVD ADJ_18 Q203
2SC8550D
100
V18
LDO_CD
Vout=Vref × (1+Ra/Rb)
Vref=1.25V
OP-
R213
ADJ_33 Q205
V33
2SC8550D
100
OP+
V33
C219 C218 C204 C203
0.1uF 0.1uF 0.1uF 0.1uF
SANYO HD-65 SONY 313 Vout=Vref × (1+Ra/Rb)
0 ohm 100ohm Vref=1.25V
120pF NC
+5VA
FB201
120
CE205 C207
100 uF/10V 0.1uF
+5VA
R220
10K
R219
Q207
2SK3018
100K
Q209
2N3904
R222
10K
R221
Q208 IOA/TROPEN
2SK3018
100K
CON203 V33
1 TROUT/LIMIT R223 10K
2
3 TRIN R224 10K
4 LOAD+
5 LOAD- C210 0.1uF
PH-5A
D203 D204
1N4001 1N4001
R209
Q204
2SC8550D
100
Vout
CE203 R210 R212
Ra
100 uF/6.3V 4.7K;1% FBI_18 NC/0(0805)
Vref
R211
Rb
10K;1%
D206
1N4001
R214
Q206
2SC8550D
100
Use D203 D204 D205 D206
Q203 Q204 Q205 Q206
Vout R208 R209 R213 R214
CE204 R215
Ra
100 uF/6.3V 20K;1% FBI_33
Use D206 D203 R212
Vref Q2031.5A/1W)
R216
Rb R208 R213
12K;1%
for costdown .
U201
T- 15
VOTK+ VOFC+
T+ 16
VOTK-
SL+ 17
VOLD+
MO_VCC SL- 18
VOLD- VOSL+
19
VCC2 VOTR+
20
NC
21
VCTL
C216
30
G2
0.1uF
22
GND
FMSO 23
VINLD
24
NC REGO1
ADJ_18 25
TRB2 VINSL+
TRSO 26
VINTK REGO2
V1P4 27
BIAS
STBY 28
MUTE
CD: H
AM5888 S L/F
DVD: L
R229 C215
10K 0.1uF
FOSO R225 27K FOO
TRSO R226 27K TRO
FMSO R227 15K FMO
DMSO R228 10K DMO
C211 C212 C213 C214
330 pF 330 pF 0.1uF 0.015 uF
V1P4
8-2
+5VA
D205
C
B
1N4001
A
D
F
E
RFO
MDI
LDO_CD
LDO_DVD
IOA/TROPEN
DMO
FMO
TRO
FOO
STBY
OP-
OP+
TRCLOSE
Q205 (1.5A/1W) TRIN
TROUT/LIMIT
SERVO I/F
14 F+
13 F-
VOFC-
12 SP-
VOSL-
11 SP+
10 LOAD+
9 LOAD- MO_VCC +5VA
VOTR-
FB202
8
VCC
120
C217 CE206
29
G1
0.1uF 100 uF/10V
7 IOA/TROPEN
REV
6 TRCLOSE
FWD
5 FBI_33
4 R230 10K DMSO
3 FBI_18
2 ADJ_33
TRB1
1 FOSO
VINFC
CLOSE OPEN
TRCLOSE L H
IOA/TROPEN H L
C
B
A
D
F
E
RFO
MDI
LDO_CD
LDO_DVD
IOA/TROPEN
DMO
FMO
TRO
FOO
STBY
OP-
OP+
TRCLOSE
TRIN
TROUT/LIMIT