Sony MDX-C800REC (serv.man2) Service Manual ▷ View online
33
33
tuner unit
(TU1)
(TU1)
COMPUTER board
DIGITAL board
CONNECTION board
SENSOR board
KEY board
RELAY board
SERVO board
MAIN board
3-5. CIRCUIT BOARDS LOCATION
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
For schematic diagrams
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: AM
J
: MD
For printed wiring boards
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
f
: internal component.
• b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
• Waveforms
(MODE:PLAY)
(SERVO/COMPUTER BLOCK)
1
2
3
IC440
ek
(RF)
1.4Vp-p
Approx.
0.5Vp-p
0.5Vp-p
4
5
6
7
8
IC400
wg
(LRCK)
IC400
wh
(XBCK)
IC520
ea
(CAPA+)
4.8Vp-p
4.8Vp-p
4.4Vp-p
4.4Vp-p
3.4Vp-p
24µsec
0.35µsec
2.8µsec
IC440
wh
(TE)
Approx.
0.3Vp-p
0.3Vp-p
IC440
ef
(FE)
IC520
es
(CAPA–)
2.8µsec
IC560
os
(XO)
3.68MHz
34
34
SERVO BOARD (SIDE A)
1-672-770-
04
R524
C534
C533
R517
CN510
R512
R416
R415
R513
C510
OVER WRITE
HEAD
C516
R516
C517
C426
IC402
C513
C527
R523
C530
R522
C528
C529
Q520
Q512
Q511
Q510
Q440
Q441
Q443
Q444
Q446
Q445
IC400
IC440
1
16
32
IC510
1
10
1
8
20
11
8
5
1
4
17
CN400
CN401
R440
R400
R442
R443
R444
R441
C441
C425
R447
C443
R446
R461
R458
R452
R453
R451
C445
R450
R480
R479
C472
R478
C458
R470
C459
R469
C457
R467
L444
C474
R483
R482
C469
CN440
Q442
Q447
R471
R521
C524
C520
R520
R472
R474
R473
C467
R476
C470
R484
R486
R485
R485
C473
FB443
FB444
C462
C475
C471
R455
C418
R402
C414
R456
C450
R457
R460
R459
R454
C447
C446
R462
R463
R465
R465
R487
C452
C453
R404
R448
R449
R449
C460
L442
L443
R466
C444
C454
R401
C415
R464
C440
L440
RB400
RB402
IC401
13
1
17
12
51
1
35
1
50
2
24
1
25
75
76
100
50
26
51
37
48
1
1
5
2
3
12
36
25
24
13
4
1
5
8
A
B
C
D
E
F
1
2
3
4
5
6
7
15
SENSOR BOARD
CN550
6
COMPUTER BOARD
CN560
5
MAIN BOARD
CN100
3
IC520
OPTICAL
PICK-UP
KMS-263A
D441
D440
D511
D510
D520
S
S
D-GND
OWH
IC442
IC521
CN520
1
21
3-6. PRINTED WIRING BOARD — SERVO SECTION —
MDX-C800REC
Ref. No.
Location
D440
F-5
D441
F-3
D510
B-6
D511
B-6
D520
C-4
D521
C-5
IC400
E-5
IC401
D-5
IC402
C-7
(IC403)
F-6
IC440
F-3
IC442
F-1
IC510
A-7
IC520
D-2
(Q400)
F-4
Q440
F-6
Q441
F-6
Q442
E-1
Q443
E-1
Q444
F-2
Q445
E-1
Q446
E-1
Q447
F-1
Q510
B-6
Q511
B-6
Q512
B-7
Q520
C-4
• Semiconductor
Location
(
) : SIDE B
(Page 39)
(Page 40)
(Page 42)
35
35
MDX-C800REC
SERVO BOARD (SIDE B)
1-672-770-
15
A
B
C
D
E
F
1
2
3
4
5
6
7
04
C408
RB403
RB404
RB405
R411
L400
C407
R420
C429
R421
C404
C403
C402
C403
C402
R403
C417
C416
C419
R408
C423
C424
R413 R414
C420
R412
R409
C411
C410
L401
C406
C428
C400
Q400
C401
C511
IC403
1
4
4
8
5
5
36
36
• Refer to page 33 for Waveforms.
3-7. SCHEMATIC DIAGRAM — SERVO SECTION (1/3) — • Refer to page 52 for IC Block Diagrams.
(Page 37)
Note:
• Voltage is dc with respect to ground under no-signal
• Voltage is dc with respect to ground under no-signal
condition.
no mark : MD PLAY
(
no mark : MD PLAY
(
) : MD REC
(Page 38)
MDX-C800REC
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