Sony MDX-C8500R / MDX-C8500X Service Manual ▷ View online
25
25
• Waveforms
– SERVO Board –
– SERVO Board –
1
IC301
qh
(OSCI) (MD Play Mode)
2
IC301
wg
(LRCK) (MD Play Mode)
3
IC301
wh
(XBCK) (MD Play Mode)
7
IC302
1
,
2
,
r;
,
rh
(I, J, AGCI, RFO)
(MD Play Mode)
8
IC304
1
,
2
(MD Play Mode)
9
IC304
3
(MD Play Mode)
0
IC304
5
,
6
(MD Play Mode)
qa
IC304
7
(MD Play Mode)
qs
IC501
ea
(EXTAL)
6
IC301
uf
(TE), IC302
wh
(TE)
(MD Play Mode)
4.6 Vp-p
44.3 ns
4
IC301
tg
(RFI), IC302
ek
(RF)
(MD Play Mode)
5
IC301
yg
(FE), IC302
ef
(FE)
(MD Play Mode)
– MAIN Board –
1
IC201
4
(OSCO)
2
IC502
yg
(F OSC)
4
IC502
od
(X1)
3.8 Vp-p
22.7
µ
s
4.1 Vp-p
354 ns
Apporx.
1.5 Vp-p
1.5 Vp-p
Approx.
0.5 Vp-p
0.5 Vp-p
Approx.
2 Vp-p
2 Vp-p
Apporx.
0.6 Vp-p
0.6 Vp-p
4.1 Vp-p
44.3 ns
2.6 Vp-p
44.3 ns
3.8 Vp-p
44.3 ns
4.4 Vp-p
44.3 ns
3.7 Vp-p
101 ns
5.8 Vp-p
231 ns
3
IC502
ud
(X1A)
4.6 Vp-p
3.4
µ
s
6 Vp-p
30.5
µ
s
6.1 Vp-p
272 ns
5
IC701
ih
(EXTAL)
3 Vp-p
54.2 ns
6
IC302
1
(OUT)
7
Q103, 106 (Base)
8
Q103, 106 (Emitter)
9
Q105 (Base)
0
Q105 (Collector)
12.6Vp-p
3.4
µ
s
15.2 Vp-p
3.4
µ
s
2
IC803
6
(MD Play Mode)
– DSO Board –
1
IC803
3
(MD Play Mode)
3.9 Vp-p
22.7
µ
s
4 Vp-p
354 ns
3
IC805
ra
(XTLI38)
2.7 Vp-p
59.1 ns
– KEY Board –
1
IC901
oh
(OSC)
3.1 Vp-p
22.7
µ
s
3.4
µ
s
7 Vp-p
6.6 Vp-p
3.4
µ
s
3.6 Vp-p
3.4
µ
s
MDX-C8500R/C8500X
26
26
5-7.
PRINTED WIRING BOARDS – SERVO Board (Component Side)/SENSOR Board –
•
See page 24 for Circuit Boards Location.
B
C
E
Q301
IC306
76
32
17
1
16
75
51
50
26
25
1
1
4
1
3
5
4
8
5
100
IC303
IC301
IC501
IC302
IC304
7
5
8
4
1
1
11
1
4
8
5
1
8
14
7
1
8
14
IC503
IC502
IC401
IC305
L304
L303
L305
L306
Q401
D501
D401
K
A
CN102
20
1
1
12
36
25
24
13
37
48
Q302
BC
E
L302
X501
B
C
E
K
A
05
OPTICAL
PICK-UP
BLOCK
(KMS-241C)
1
2
65
64
80
1
CN101
CN103
29
30
(CHASSIS)
SENSOR FLEXIBLE
BOARD
MAIN BOARD
CN301
SERVO BOARD
(COMPONENT SIDE)
41
40
24
25
11
1
(LOADING END)
1-676-656-
M903
(LOADING)
RED
BLK
M902
(SLED)
RED
BLK
RED
BLK
M902
(SPINDLE)
(LIMIT)
LOADING START
EJECT END
SENSOR BOARD
(COMPONENT SIDE)
SENSOR BOARD
(CONDUCTOR SIDE)
M
M
M
M
M
M
(11)
11
1-676-656-
(11)
11
1-654-693-
11
A
1-675-655-
(11)
11
C346
+
C306
C305
C403
C406
C352
R518
R516
R511
R532
R527
C327
C329
C326
C325
R347
R355
R345
R340
R336
C321
R343
R344
R342
R338
R528
R526
R529
R501
R502
R503
R531
R535
R539
R506
R507
C11
R319
R314
R313
FB302
R538
R525
R524
R523
R522
R537
R536
C516
R504
C501
R505
C328
C331
R356
C330
R346
R341
R339
C347
C320
R348
C322
R337
R357
R349
C324
R517
R404
C402
R405
R311
R308
R307
R306
R305
R302
R353
C343
C349
C336
R352
C342
R301
R304
R303
R318
R320
R325
R328
R324
R327
C308
C310
C311
R329
R330
C315
(CHASSIS)
R354
R331
C348
R351
C314
C339
(CHASSIS)
(CHASSIS)
C318
+
C319
+
R350
1
A
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
• Semiconductor
Location
Ref. No.
Location
D401
A-12
D501
D-11
IC301
D-7
IC302
I-9
IC303
F-7
IC304
C-8
IC305
B-13
IC306
E-6
IC401
A-12
IC501
G-13
IC502
D-10
IC503
E-10
Q301
E-5
Q302
I-8
Q401
B-11
(Page 31)
MDX-C8500R/C8500X
27
27
Q402
B C E
B
C
E
Q403
RB301
RB302
RB503
IC307
L501
L301
1
5
9
13
26
22
18
14
05
C361
+
C511
C505
C515
C514
C513
C504
C362
SERVO BOARD
(CONDUCTOR SIDE)
1-675-655-
(11)
11
C506
+
C344
+
C351
+
TH501
C307
C357
C356
C301
C358
C512
C316
C350
C333
C503
C510
R547
C309
C317
C302
C353
C345
C359
R401
R402
R403
R358
R335
R333
R334
R332
R534
R533
R519
R521
R520
R542
R540
R512
R510
1
A
2
3
4
5
6
7
8
9
B
C
D
E
F
G
H
I
5-8.
PRINTED WIRING BOARD – SERVO Board (Conductor Side) –
•
See page 24 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
IC307
C-8
Q402
B-4
Q403
B-4
MDX-C8500R/C8500X
28
28
5-9.
SCHEMATIC DIAGRAM – SERVO Board (1/2)/SENSOR Board –
•
See page 25 for Waveforms.
•
See page 42 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : MD PLAY
no mark : MD PLAY
∗
: Impossible to measure
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
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