Read Sony PMC-DR45 Service Manual online
PMC-DR45
– 29 –
– 30 –
CNP301
CN301
4
SYSTEM CONTROL,
POWER SECTION
TC BOARD
TC RF BOARD
POWER BOARD (1/2)
SPEAKER
BOARD
HEAD
RELAY
BOARD
H/P BOARD
LINE BOARD (2/2)
MAIN BOARD (2/3)
L.NF
L.PO
3
CD
SECTION
5
SYSTEM CONTROL,
POWER SECTION
1
TUNER
SECTION
REC/PB PRE AMP
IC301
04
1
2
4
3
5
6
6
1
2
4
3
5
6
6
NF
R.NF
R.PO
REF
R.IN
R.RO
L.RO
L.IN
R-CH
R-CH
NF
5
3
2
24
5
19
20
40
7
13
7
12
14
17
15
16
21
37
1
1
6
3
20
8
10
6
11
9
4
3
CD+7.5V
CD+5V
CD-L
TU-L
CN306
CNP305(2/2)
CNJ314
CNP314
RA+6V
CD+7.5V
CD+5V
L-CH
L-CH
RADIO 6V
1
5
6
5
REC/PB
SWITCH
Q305
REC/PB
SWITCH
Q306
BIAS
CONTROL
Q304
BIAS
SWITCH
Q308
REC
SWITCH
Q307
ERASE
SWITCH
Q334
REC/PB
SWITCH
Q302,303
REC/PB
SWITCH
Q304
ISS
SWITCH
Q310,311
BIAS OSC
Q301
11
10
9
8
7
4
3
1
2
3
4
5
6
6
8
1
T301
BIAS OSC
11
2
10
9
2
1
3
4
21
15
13
14
24
12
6
5
16
17
17
18
20
20
4
3
3
3
3
15
21
4
5
2
1
4
5
2
1
MUTE
Q103
MUTE
Q106
TU/TAPE
SWITCH
Q319,320
MUTE
Q101,
Q101,
102
MUTE
Q104
2
1
ISS
SWITCH
Q332,333
TC CONTROL
SWITCH
Q330
HALF DET
Q329
PLUNGER
DRIVE
Q331
5
4
3
1
5
4
3
1
MUTE
SWITCH
Q316,317
MUTE
Q105
2
5
SP101
SPEAKER
L-CH
SP201
SPEAKER
R-CH
-1 L
-2 R
-1 L
-2 R
R-CH
J302
SIGNAL OUT
J321
SIGNAL IN
PLUNGER
SOLENOID
PM691
ROTATION
DET
PH691
TC-SOLENOID
TC-STATUS
TC-MODE
TC-COUNT(END)
TC-REC
TC-BIAS
ISS2
TC-AMS
V-DA/LT
V-CLK
V-DA/LT
V-CLK
LINE MUTE
TAPE
A-MUTE
ISS1
CNP309
(1/2)
CNP902
(1/2)
(1/2)
CNJ310
CNP313
CNP307
(2/3)
R-CH
R-CH
R-CH
R-CH
R-CH
LINE-L
TAPE-SW
ISS1
ISS2
TC-BIAS
TC-REC
TC.O-L
R-CH
LINE IN-L
OUT-L
TAAPE
REC
AUDIO
+7.5V
AUDIO
+7.5V
+7.5V
COM
+5.6V
LINE IN-L
LINE.O-L
FR.IN-L
OUT-L
OUT-R
VCC
V-DAT/LAT
V-CLK
OUTPUT
TC.IN-L
CD.IN-L
TU.IN-L
INPUT
R-CH
AUDIO
+7.5V
+7.5V
TU
AMS
IC304
J901
SPEAKER
OUT R-CH
IMPEDANCE USE4
Ω
CNP911
CNP903
POWER AMP
IC311
STANDBY
R-CH
V+5V
STANDBY
S691
(HEAD POSITION)
S692
(HALF DET)
M691
(CAPSTAN/REEL)
S693
(CrO2)
S694
(FWD ERASE PROOF)
S695
(REV ERASE PROOF)
AUDIO
+7.5V
+7.5V
AUDIO
+7.5V
+7.5V
L-CH
R-CH
ERASE
HRPE301
REC/PB/ERASE
HEAD
CNP311
CNP302
CNJ304
CNP303
J311
LINE OUT
J312
LINE IN
SOUND AMP
IC302
J301
i
HEADPHONE
AMP
IC303
• Signal path
: FM
: AM
: CD
: TAPE
: LINE
• R-ch : same as L-ch.
9
5
3
7
2
1
4
9
5
3
7
2
1
4
8
8
TC MTR
+9.5V
PHOTO
MODE
HALF
CrO
2
R-FWD
R-REV
SOL
6-5. BLOCK DIAGRAM — TAPE SECTION —
(Page 28)
(Page 26)
(Page 31)
(Page 31)
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