TO
MAIN CIRCUIT
(CN2809)
IN SCHEMATIC
DIAGRAM-3
TO
TRANSFORMER CIRCUIT
(CN5950) IN SCHEMATIC
DIAGRAM-11
TO
MAIN CIRCUIT
(CN2808)
IN SCHEMATIC
DIAGRAM-5
SCHEMATIC DIAGRAM - 9
POWER CIRCUIT
SA-AK750PL POWER CIRCUIT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
I
J
L
M
N
P
O
K
I
J
L
M
N
P
O
K
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1/2
2/2
G1
G2
AGND
C5438
0.015
C5434
0.015
C5435
0.015
C5115
H5104
D5122
D5122
E5101
C5103
R5123
R5151
R5147
D5101
Q5101
C5101
R5126
C5151
R5103
Q5110
D5152
D5121
C5102
C5107
C5171
C5187
E5103
R5110
C5104
C5153
R5136
R5137
C5113
R5132
D5125
C5159
R5133
Q5114
Q5113
D5109
R5134
R5135
D5107
C5157
R5127
C5131
C5109
R5152
C5132
IC5101
C5110
D5104
R5107
R5106
Q5108
C5152
D5103
R5105
R5109
R5108
D5105
Q5102
C5172
D5102
D5102
R5114
R5101
C5114
C5186
C5106
C5335 0.015
C5334
0.015
C5343
0.015
C5133
CN5102
CN5103
D5130
JK5102
JK5101
B0BA01900005
B0EAKP000134
B0EAKP000134
K9ZZ00001279
B0AAFK000004
B0BA01100004
B0BA01500003
C0DAZYY00005
B0BA01100004
B0BA5R100004
B0BA02400029
B0BA02600018
B0JAME000025
AGND
-9V
+VCC2
+VCC2
+VCC1
-VCC2
-VCC1
SUB+B
SUB+B
ACIN
+5V
MODE
F_HOP
HI_R
LO_R
FAN
AGND
SUBW
LO_L
HI_L
+15V
AGND
XM5.3V
CD3.3V
DC_DET
XM5.3V
MUTE_F
-9V
MOTOR12V
CD3.3V
PCONT
+5V
AGND
+15V
PCONT
MOTOR12V
0.1u
100V10u
4.7
150K
REGULATOR IC
2.2
35V1000
1K
10K
10u
0.1u
63V1000u
0.1u
2.2K
35V1000
100P
100P
2.2
2.2
50V33
330
0.01u
10K
1.2K
2.2
0.01u
470
25V100u
0
25V100
25V100u
560
22K
0.1u
10K
1K
47
63V1000u
1.8
10K
0.1u
0.1u
0.1u
6.3V100
6.3V100
SU
SU
SUBWOOFER-
SUBWOOFER-
LL-
LL-
LEFT HIGH -
RIGHT LOW +
RIGHT LOW -
RIGHT HIGH -
RIGHT HIGH +
LEFT LOW +
LEFT LOW -
LEFT HIGH +
+VCC1
CHASIS
GND
RH+
RH+
NC
RL-
RH-
RL+
RL+
+VCC1
DGND
AGND
AGND
ACIN
SUB+B
-VCC1
-VCC1
5.6V
GND
CTRL
VCC
3.3V
LL+
LH+
LH-
LH-
SUBWOOFER
SPEAKERS
ASPGND
LOW_LIN
DC_DET
XM5.3V
-9V
mUTE-F_HOP
FAN
+5V
AGND
PCONT
CD3.3V
FLGND
PGND
DGND
LOW_RIN
HIGH_LIN
15V
MODE
TGND
HIGH_RIN
SUBWOOFER
MOTOR 12V
+3.3V
F_HOP
3
2
6
7
4
5
1
9
8
1
3
2
S
D
G
1
3
2
2
4
1
3
5
S
D
G
7
9
10
8
4
5
1
3
2
6
12
11
7
9
10
8
4
5
1
3
2
6
12
11
-
+
3
2
6
7
4
5
1
3
2
1
9
8
K9ZZ00001279
Q5109
2SB0709AHL
VOLTAGE REGULATOR
Q5101,Q5102
B1DEGM000026
CURRENT CONTROL SWITCH
Q5108
B1ABCF000176
SWITCH
Q5109
Q5110
B1GACFGA0002
26V REGULATOR
Q5111
B1BACG000023
+15V REGULATOR
Q5113
B1GDCFNA0001
CURRENT LIMITER SWITCH
Q5112
B1BCCG000002
CURRENT STABLISER
Q5114
B1ABCF000176
11V REGULATOR
B0BA01100004
L5602
G0B9R5K00001
L5604
G0B9R5K00001
L5603
G0B9R5K00001
L5601
G0B9R5K00001
: +B SIGNAL LINE
: -B SIGNAL LINE
: MAIN SIGNAL LINE
W5162
0
W5511
0
W1103
0
W5508
0
K1000
ERJ6GEY0R00V
SA-AK750PL
75
Summary of Contents for SA-AK750PL
Page 8: ...8 SA AK750PL ...
Page 11: ...6 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna 11 SA AK750PL ...
Page 13: ...13 SA AK750PL ...
Page 15: ...With reference to page 15 of the operating instruction manual 15 SA AK750PL ...
Page 16: ...With reference to page 16 of the operating instruction manual 16 SA AK750PL ...
Page 27: ...10 3 Main Parts Location 27 SA AK750PL ...
Page 39: ...10 17 1 Replacement of Pinch Roller and Head Block 39 SA AK750PL ...
Page 40: ...10 17 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 40 SA AK750PL ...
Page 46: ...12 4 Checking and Repairing of Power P C B 46 SA AK750PL ...
Page 48: ...48 SA AK750PL ...
Page 52: ...15 3 Power P C B Transformer P C B 15 4 Panel P C B 52 SA AK750PL ...
Page 53: ...15 5 Main P C B 53 SA AK750PL ...
Page 54: ...15 6 Deck P C B 15 7 Waveform Chart 54 SA AK750PL ...
Page 56: ...56 SA AK750PL ...
Page 64: ...SA AK750PL 64 ...
Page 66: ...66 SA AK750PL ...
Page 86: ...SA AK750PL 86 ...
Page 91: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK750PL 91 ...
Page 92: ...SA AK750PL 92 ...
Page 93: ...23 2 Deck Mechanism Parts Location RAA4403 S SA AK750PL 93 ...
Page 94: ...23 3 Packaging SA AK750PL 94 ...