DOWNLOAD Sony DHC-EX880MD / DHC-MD717 / MDS-EX880 / MDS-MS717 Service Manual ↓ Size: 820.87 KB | Pages: 52 in PDF or view online for FREE

Model
DHC-EX880MD DHC-MD717 MDS-EX880 MDS-MS717
Pages
52
Size
820.87 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dhc-ex880md-dhc-md717-mds-ex880-mds-ms717.pdf
Date
PREV: Sony DHC-EX880MD / DHC-MD717 / ST-EX880 / ST-MS717 Service Manual

Sony DHC-EX880MD / DHC-MD717 / MDS-EX880 / MDS-MS717 Service Manual ▷ View online

– 23 –
• Circuit Boards Location
MOTOR RELAY board
HEAD SW board
MAIN board
SW board
ELEVATOR RELAY board
PANEL (R) board
PANEL (FL) board
LED board
PANEL (L) board
BD board
DISC SW board
MECH RELAY board
– 48 –
• Waveforms
– BD Board –
1
IC101 
1
, 
2
 (I, J) (MD Play Mode)
2
IC101 
4
 (A) (MD Play Mode)
3
IC101 
8
, 
9
 (E, F) (MD Play Mode)
4
IC101 
#•
 (RF) (MD Play Mode)
Approx.
500 mVp-p
5
IC152 
#™
 (CAPA –) (MD Play Mode)
6
IC152 
#¡
 (CAPA +) (MD Play Mode)
7
IC121 
@¶
 (FS256), IC201 
!∞
 (MCLK)
8
IC121 
@§
 (XBCK), IC201 
!™
 (SCLK)
9
IC121 
@∞
 (LRCK), IC201 
!¡
 (LRCK)
0
IC121 
!§
 (OSCI)
!¡
IC316 
!∞
 (XIN)
Approx.
200 mVp-p
Approx.
140 mVp-p
Approx.
1.3 Vp-p
4 Vp-p
2.5 
µ
s
4.1 Vp-p
2.5 
µ
s
3.4 Vp-p
90 ns
3.3 Vp-p
350 ns
3.3 Vp-p
23 
µ
s
1.9 Vp-p
22.5792 MHz
2.4 Vp-p
7 MHz
– 49 –
– MAIN Board –
1
IC305 
!¡
 (X1)
– PANEL Board –
1
IC701 
@º
 (XOUT)
2
IC701 
@¡
 (XIN)
3.9 Vp-p
5 MHz
4.9 Vp-p
Approx. 456 kHz
780 mVp-p
Approx. 440 kHz
– 50 –
• IC Block Diagrams
– BD Board –
IC101
CXA2523AR
–1
–2
+
–
IVR
BB
+
–
IVR
AA
+
–
IVR
CC
+
–
IVR
DD
+
–
IVR
+
–
EE
EE'
EFB
TESW
PTGR
48
MORFO
47
MORFI
46
RFO
45
OPN
44
OPO
43
ADDC
42
COMPP
41
COMPO
40
AGCI
39
RF AGC
38
RF
37
PEAK
36 BOTM
35 ABCD
34 FE
33 AUX
32 ADFG
31 ADAGC
30 ADIN
29 ADFM
28 SE
27 CSLED
26 TE
25 WBLADJ
24
VCC
23
3TADJ
22
EQADJ
21
VREF
20
F0CNT
19
XSTBY
18
XLAT
17
SCLK
16
SWDT
15
TEMPR
14
TEMPI
13
GND
12
APCREF
11
APC
10
PD
9
F
8
E
7
D
6
C
5
B
4
A
3
VC
VI CONV
BGR
VREF
SCRI - PARA
DECODE
+
–
+
–
AUXSW
COMMAND
+
–
IVR
GSW IV
+
–
FF
FBAL
FF'
TG
SEA
–
+
–
+
–1
–2
TG
TEA
WBL
3T
EQ
–
–
+
+
+
+
–
–
+
+
+
+
DET
ADIP
AGC
WBL
BPF22
BPFC
ABCDA
FEA
WBL
ATA
–
+
CVB
+
–
RFA1
–
–
–
–
1
2
–
–
–
1
2
GRVA
CFST
RFA2
GRV
HLPT
PTGR
–2
–1
–1
–2
BOTTOM
PEAK
RF AGC
EQ
EQ
DET
P-P
WBL
3T
WBL
TEMP
PBH
–
+
USROP
+
–
USRC
3T
BPF3T
PEAK3T
1
I
2
J
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