Sony CMT-C7NT / HCD-C7NT Service Manual ▷ View online
53
53
HCD-C7NT
6-9. Schematic Diagram – Connector Section –
(Page 51)
LOADING MOTOR-
LOADING MOTOR+
RESET SWITCH
SPINDLE MOTOR+
SPINDLE MOTOR-
FEED MOTOR+
FEED MOTOR-
S1 (Disc IN/8cm Disc Detect)
S2 (12cm Disc/12cm Disc Eject End Detect)
S3 (Disc/ Chacking/ Release Detect)
S3 (Disc/ Chacking/ Release Detect)
S4 (8cm Disc Eject End Detect)
GRN
YEL
RED
BRN
ORG
ORG
54
54
HCD-C7NT
6-10. Printed Wiring Board – BD (MD) Board –
• See page 45 for Circuit Boards Location.
Ref. No.
Location
D181
D-3
D183
D-3
IC101
A-3
IC102
B-3
IC141
C-1
IC151
C-2
IC153
C-3
IC181
D-3
IC190
D-1
IC195
D-2
Q121
B-3
Q122
B-3
Q181
C-3
Q182
D-3
• Semiconductor
Location
Side B
Side B
Ref. No.
Location
D101
A-1
Q101
B-1
Q131
B-1
Q132
B-1
Q133
B-1
Q134
B-1
• Semiconductor
Location
Side A
Side A
BD (MD) BOARD (SIDE A)
OPTICAL PICK - UP
TO
HR901
TO
OVER
WRITE HEAD
BLOCK
(KMS-262E)
E
E
E
E
1
3
4
5
R157
R153
R159
R160
R161
TO
MD DIGITAL
BOARD
CN1005
TO
MD DIGITAL
BOARD
CN1004
D
C
1
3
4
E
5
S102
PROTECT
REFRECT
M703
M701
E
E
E
M702
C174
C173
X171
R177
BD (MD) BOARD (SIDE B)
23
IC190
IC141
IC151
IC152
IC102
IC101
IC181
IC195
R166
R163
R164
R165
R178
Iop
(Page 57)
(Page 57)
✩
IC195 is a written in and settled EEPROM. Supply with a
single article has not been carried out. In case you exchange
by BD board (A-4726-972-A), please put on IC195 currently
used with the model again.
single article has not been carried out. In case you exchange
by BD board (A-4726-972-A), please put on IC195 currently
used with the model again.
55
55
HCD-C7NT
6-11. Schematic Diagram – BD (MD) Board (1/2) –
• See page 45 for Wavefoms. • See page 71 for IC Block Diagrams. • See page 74 for IC Pin Function Description.
IC B/D
2
3
4
(MD
)
(KMS-262E)
0
BH6519FS-E2
M701
M702
(MD)
(MD)
(MD)
106-QR
39k
56
56
HCD-C7NT
6-12. Schematic Diagram – BD (MD) Board (2/2) –
• See page 45 for Wavefoms. • See page 75 for IC Pin Function Description.
5
(MD)
C
D
MD
MD
152
EFM /ACIRC EONCODER / DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER / DECODER
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER / DECODER
,
M703
(MD)
(MD)
(MD)
6
8
21
19
A09
A10
A10
NC
IC152
MSM51V17400F-50TS-K
470p
(1/3)
CN1004
(1/3)
CN1005
MCKGND
R178 0
XBCK
XBCK
GND
DADT
DADT
LRCK
LRCK
ADDT
ADDT
23P
18
19
20
21
22
23
R166 100
R165 100
R164 100
R163 100
R157 100
R159 22P
R160 22P
R161 22P
Iop
2SJ518AZTR
F1J6TP
F1J6TP
2SK2788VYTR
(Page 58)
(Page 58)
✩
IC195 is a written in and settled EEPROM. Supply with a
single article has not been carried out. In case you exchange
by BD board (A-4726-972-A), please put on IC195 currently
used with the model again.
single article has not been carried out. In case you exchange
by BD board (A-4726-972-A), please put on IC195 currently
used with the model again.
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