DOWNLOAD Sony PMC-DR45 Service Manual ↓ Size: 7.72 MB | Pages: 68 in PDF or view online for FREE

Model
PMC-DR45
Pages
68
Size
7.72 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
pmc-dr45.pdf
Date
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Sony PMC-DR45 Service Manual ▷ View online

PMC-DR45
– 35 –
6-8. SCHEMATIC DIAGRAM — TUNER  SECTION  —  • Refer to page 65 for IC Block Diagrams.  Refer to page 33 for Note.
– 36 –
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
) : AM
IC2 
w;
 (X OUT)
• Waveform
1
0.9Vp-p
75kHz
5
µ
sec/div
20mV/div
(Page 47)
PMC-DR45
– 37 –
– 38 –
6-9. PRINTED WIRING BOARDS — CD SECTION —  • Refer to page 34 for Note.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
TP
(VC)
TP
(RF)
S701
(LIMIT)
FX
FY
TP(FE)
TP(TE)
D701
C-10
D702
C-7
D703
D-7
D704
G-8
D705
G-8
IC651
G-3
IC701
F-12
IC702
E-10
IC703
B-8
Q701
G-14
• Semiconductor
Location
Ref. No.
Location
(Page 59)
(Page 52)
(Page 45)
• Waveforms
1
2
3
4
IC702 
yj
 (XTAO)
Approx. 50mVp-p
IC701 
qf
 (FE)
IC701 
qh
 (RFO)
IC701 
qd
 (TE)
Approx. 50mVp-p
1.1-1.3Vp-p
4.8Vp-p
16.9344MHz
20
µ
sec/div
2mV/div
20
µ
sec/div
2mV/div
0.5
µ
sec/div
50mV/div
50nsec/div
0.2V/div
6-10. SCHEMATIC DIAGRAM — CD SECTION —  • Refer to page 66 for IC Block Diagrams.  Refer to page 38 for Waveforms.  Refer to page 33 for Note.
PMC-DR45
– 39 –
– 40 –
(Page 47)
(Page 59)
(Page 54)
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
∗
: Impossible to measure
Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
PMC-DR45
– 41 –
– 42 –
6-11. PRINTED WIRING BOARD — TC  SECTION  —  • Refer to page 34 for Note.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
6
5
4
3
2
1
LCH
CN301
RCH
ERASE
HRPE301
REC/PB/ERASE
HEAD
HEAD
RELAY
BOARD
1-673-339-
D301
F-7
D302
F-6
IC301
D-7
Q301
F-5
Q302
E-3
Q303
E-3
Q304
F-5
Q305
G-6
Q306
F-8
Q307
F-6
Q308
G-7
Q309
G-8
Q310
H-5
Q311
H-6
Q334
F-5
• Semiconductor
Location
Ref. No.
Location
(Page 45)
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