Circuit Diagram - Philips MCD988 Service Manual

CIRCUIT DIAGRAM - AMP BOARD
104
474
10K
5.6K C258
C238
R283 L-IN1 R224
R293
C2049
10K 474
102
C280
R207
5.6K
474
C226* 5.6K
R255
C252
1uf/50v 220
R280*
+12V-1
104P
C281*
C285
1uf/50v
10K 5.6K
C219 220P
C276
R202 R226
C222* R-IN1
1 10
V+ GND
C286
104 R292
100uf/16v C2050
2 9 R244 474
10K
OUT1 OUT2
102
0
R236*
0 3 8
IN1 IN1
223(M)
C224*
4 7
INT SW C218*
224(M)
5 6
VREF SENCE
C223* R279*
D2761
224(M) 2.2K
IC205*
224(M)
C221*
DVS
MUTE
R-IN
L-IN
GND
JACK201
10 6 2 SW-102-13
13 14
11 7 3
STANDBY-1
+12V
DVD GND
DVD 12V
CPU VCC-1/+5V
68k
R228
R225
4.7k
CN202
10P/2.0
8 - 1
CLOCK
R223
R269
5.6K
C212
C288
102 C2035
102
104/100V
C249
104
C215
C246
104
C2003 C2006
102
C251
104 104
8
IN1+
OUT1
9
IN1-
C257
220P
11
SGND1 BOOT1
2
SGND2
TDA8920BTH
BOOT2
5
1N2+
OUT2
4
IN2-
C266
104
C2044
C240 C243
153
104/100V
104 104
C275
C291
C2009
104
104
C206
C203
102
102 C211
102 C216 C2042
102 102
JRH0349
10
L210
R252
+Vcc
C229
C283
C2013
104
470uf/35v
47uf/35v
C228
22uf/100v
C2016 C284
47uf/35v
470uf/35v C230
104
-Vcc
R247 L205 JRH0349
10
473(M)
240K
C241 * C247
4.7uf/16V
R285 1M R290
C235 6.8K
R266
C232
R229
102p R274
68k C217
10K
Q216 154(M)
R273
2.2K
BC817C R275
4.7uf/50v 8.2K*
C231
R286
180
220
IC201
R288
DZ202 104p TL072
C233
12V R276
100uf/16V C253
8.2K*
C260
C259
C255
104(M)
220uf/25v 104(M)
+12V-1
R206
2.2K
C1301 F3.15AL250V
103p/~275v F1300
AC IN
L1300
!
1
AC OUT
2
C1300
3
103P/~275V
3P/3.95
!
CN1300
R205
DZ201
560
5.6V
Q208
Vddp2 Vssp2
BC847B
R237
2.2K
C234 5.6K
C237
220P SW-IN R230
220P
R201
1K
C297
C2048
IC203 104
R241 102p
C294
10
1U(M) R231
22
16 FL-OUT
4
DVS
L202 3
DVD +12V
15uH 2
C265
1
153
15
SP JACK200
4P/3.96
22
15uH
C269
L213 L211
153
+Vcc
21 FR-OUT
4 JRH0349
DVS
R238 3
DVD +12V
22 2
R234
1
C272
10
SP JACK201
1U(M)
4P/3.96
C278
104
L206
-Vcc
C2019 C2022
8550 JRH0349
220P 220P
+12V
Q215
Vddp2 Vssp2
R249
82R
4.7k
R246
R240
4148 1k
FR-OUT
1
D201
Q213 2
FL-OUT BC817
CN203
R245 C220 2P/2.5
R242
22k 47u/16v
4.7k
10uh
L217
C213
104
100P
C2057
22K
R209
R208
10K
47UF/16V
C225
12V
C261
220u/25V DZ203
J?
跳线
C262
104p
SW-IN
C267
4.7uf/16v
CN201
6P/2.5
8 - 1
CLOCK
R271
R233
5.6K
C210
C287 102
C279
224/100V
47uf/16v C2005
104
C214
C245
104
C2002
224(M)
104 102
C207
C282 474p
8
IN1+
C256
474p
C254
330P 9
IN1-
11
SGND1
R227
5.6K
2
SGND2
TDA8920BTH
5
1N2+
4
10
IN2-
R253
VddA3
Vddp3
104 C264
C2012
C242 104
470uf/35v C299
C227
C239 220pf
224(M)
22uf/100v
C208
104
C2015
C2008
470UE/35V
224
Vssp3
R248 VssA3
10
C2039
C202 C205 C209 102
102 102 102
FERQ HOP
1K C2062
R268
100uf/16v
DZ204 R257
C2061
10K
5.6V IC207
104 470
1K 100K
R256 R267 C2053
1 14
I1 Vcc
C2052
102
2 13
XT202
O1 I6
R265 3 12
600K
I2 O6
6.8K
R260
4 11
100K O2 I5
Q211
BC847B
5 10
I3 O5
R264
Q212 R258
1M
BC857B 6 9
100K O3 I4
C2011 10K
R259
7 8
GND O4
33pf
XT201
C2054
700K
C2056 100P PC74HCU04D
100P
note
： tolerance RES±10
％
CAP±20
％，
special parts nated beside parts
All parts comply with suppliey environment
protect material licf regulate by green envionment management
C2034
102
C248
104
C250
C204
C236
220P 560P
C296
IC204 C271
R243
104
4R7
474(M)
R232
22
16
OUT1
22uH
L212
C263
153
15
BOOT1
OUT+
1
OUT-
2
CN204
22
BOOT2
2p/2.5
22uH
C268
153 L203
21
OUT2
R239
22
R235
4R7
C293
474(M) C277
C2018
104
C201 560P
220P
224/100V
C274
C290
104
C2043
102
CLOCK
PD1
测试点约 300KHZ 和 350KHZ
IC206
C2059
1 14
Q1 Vcc
C2051
104
104
2 13
Q1 Q2
C2058
100
3 12
C1 Q2
4 11
R1 C2
R261
22
5 10
D1 R2
6 9
S1 D2
7 8
GND S2
HEF4013T