DOWNLOAD Sony PMC-DR45L Service Manual ↓ Size: 7.96 MB | Pages: 71 in PDF or view online for FREE

Model
PMC-DR45L
Pages
71
Size
7.96 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
pmc-dr45l.pdf
Date
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Sony PMC-DR45L Service Manual ▷ View online

6-10. SCHEMATIC DIAGRAM — CD SECTION —  • Refer to page 68 for IC Block Diagrams.  Refer to page 40 for Waveforms.  Refer to page 35 for Note.
PMC-DR45L
– 41 –
– 42 –
(KSS-213C)
(Page 49)
(Page 61)
(Page 56)
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
∗
: Impossible to measure
Note: The components identified by mark 
0
 or dotted line
with mark 
0
 are critical for safety.
Replace only with part number specified.
PMC-DR45L
– 43 –
– 44 –
6-11. PRINTED WIRING BOARD — TC SECTION —  • Refer to page 36 for Note.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
6
5
4
3
2
1
LCH
RCH
ERASE
HRPE301
REC/PB/ERASE
HEAD
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 47)
PMC-DR45L
– 45 –
– 46 –
6-12. SCHEMATIC DIAGRAM — TC  SECTION  —  • Refer to page 69 for IC Block Diagram.  Refer to page 35 for Note.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : REC (TAPE)
(
) : PB (TAPE)
(Page 49)
Q301 
C
 (REC)
• Waveform
1
4Vp-p
19.5
µ
sec
5
µ
sec/div
0.1V/div
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
i
-1
-2
S695
(REV ERASE PROOF)
M691
CAPSTAN/REEL
MOTOR
R691
PH691
S691
(HEAD POSITION)
S692
(HALF DET)
CNP314
9
1
PM691
PLUNGER
SOLENOID
S694
(FWD ERASE PROOF)
S693
(CrO
2
)
1-673-338-
PMC-DR45L
– 47 –
– 48 –
6-13. PRINTED WIRING BOARDS — MAIN SECTION —  • Refer to page 36 for Note.
(Page 44)
(Page 40)
(Page 62)
(Page 53)
(Page 35)
(Page 63)
D311
H-8
D312
E-9
D313
F-8
D315
H-7
D316
G-8
D317
H-6
D318
H-5
D319
H-4
D321
F-10
D322
H-3
D323
H-7
D324
H-7
D325
I-3
D326
F-3
D327
E-3
IC302
F-5
IC303
D-7
IC304
H-4
IC305
H-3
Q101
C-3
Q102
C-3
Q103
C-5
Q104
C-7
Q105
C-8
Q106
D-2
Q201
C-2
Q202
C-3
Q203
C-6
Q204
C-6
Q205
C-8
Q206
D-2
Q312
G-3
Q313
H-3
Q314
F-7
Q315
E-7
Q316
E-2
Q317
D-3
Q318
E-7
Q319
D-3
Q320
F-3
Q321
F-8
Q322
F-9
Q323
E-9
Q324
G-7
Q325
E-8
Q326
F-8
Q327
G-6
Q328
H-6
Q329
H-5
Q330
G-6
Q331
G-5
Q332
D-2
Q333
D-2
Q335
H-7
• Semiconductor
Location
Ref. No.
Location
Page of 71
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