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- 30 -
SCHEMATIC DIAGRAM (AMPLIFIER)
This is a basic schematic diagram.
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol
!!!
and
mark in the parts list and the schematic diagram designated components in which safety and
performance can be of special significance. When replacing a component identified by
!!!
and
, use only
the replacement parts designated, or parts with the same ratings of resistance, wattage or voltage that are
designated in the parts list in this manual. Leakage-current or resistance measurements must be made to
determine that exposed parts are acceptably insulated from the supply circuit before returning the product to
the customer.
D_GND
+8.5V
CD_RCH
A_GND
CD_LCH
TU_LCH
TU_GND
TU_RCH
+12V
AUX_R
GND
AUX_L
+5.6V
RECORDING
GND
REC_MUTE
BEAT
V_CHECK
NC
P_CON
MAIN_MUTE
VF_CE
TU_CLK
TU_DO
PT401
C4106
D4105
R4103
Q4101
R4101
Q4100
R4102
D4106
RY401
C4105
C4103
C4102
C4104
C4101
D4102
D4104
D4101
D4103
CN403
CN404
C4108
C4107
R4100
CN410
CN401
CN402
CN413
C4820
C4821
C4822
C4823
C4833
C4720
C4721
C4722
C4723
C4733
C4825
C4725
C4726
C4826
C4727
C4728
C4827
C4828
R4732
R4832
C4832
C4732
R4840
R4740
C4840
C4740
C4500
IC442
C4842
C4742
C4841
C4741
R4841
R4501
R4741
R4500
R4504
R4502
C4505
C4502
C4503
C4743
C4843
R4743
R4843
R4720
R4726
R4826
R4820
R4827
R4828
R4829
R4831
R4821
R4822
R4823
R4727
R4728
R4729
R4721
R4722
R4723
R4725
R4731
R4825
C4950
C4603
C4601
L4601
L4600
C4600
C4606
R4607
C4608
C4607
R4605
Q4602
C4605
Q4603
R4604
C4604
R4602
C4609
R4606
R4608
L4603
L4604
L4602
C4602
R4603
R4601
R4600
Q4601
IC443
R4962
R4751
R4851
R4750
R4850
C4751
C4851
C4750
C4850
C4501
IC440
C4707
R4800
C4700
R4702
C4701
R4700
C4801
C4800
R4802
R4801
R4701
C4702
C4550
C4704
C4551
R4550
C4802
C4556
C4804
C4554
R4551
C4807
C4806
R4552
C4703
R4703
R4803
C4803
C4708
R4805
C4555
R4553
C4552
C4553
C4805
C4705
C4808
C4706
R4705
IC446
D4993
C4993
C4994
Q4991
D4992
R4992
C4995
C4996
R4993
PR496
Q4994
R4963
Q4992
C4953
CN455
R4781
R4881
C4997
C4984
Q4600
Q4501
Q4800
Q4700
R4967
CN440
D4994
C4560
R4560
Q4502
R4503
D4998
IC441
R4921
C4921
R4922
R4923
C4922
C4923
R4321
R4322
Q4321
R4320
R4324
R4745
R4845
C4504
R4704
R4804
C4280
C4281
D4280
D
4281
D4283
D4282
C4282
C
4283
D4284
PR420
C4284
CN428
CN457
PR495
C4992
C4991
C4990
D4991
Q4990
Q4993
R4990
R4991
R4994
CN444
CN441
CN446
C4920
R4920
D4996
D4997
R4510
Q4503
CN442
D4995
L4607
L4605
L4606
Q4320
R4323
C4999
C4998
C4901
C4902
C4904
C4286
47;25
MTZJ6.2B
2.2K
KTD863
100K
KTC3198
10
1SS133
1000/16
0.01;F
0.01;F
0.01;F
0.01;F
MPG06G
MPG06G
MPG06G
MPG06G
0.01
0.01
4.7K
1/50
1/50
1/50
1/50
1/50
1/50
1/50
1/50
1/50
1/50
1/50
1/50
2700P
2700P
0.1
0.1
0.1
0.1
6.8K
6.8K
10/50
10/50
3.9K
3.9K
2200P
2200P
470/35
TDA7269
1000/25
1000/25
100P
100P
18K
1K
18K
1K
10K
18K
2.2/50
47/50
0.047
0.1
0.1
2.2
2.2
8.2K
27K
27K
8.2K
2.7K
220K
39K
68K
8.2K
27K
39K
2.7K
220K
39K
8.2K
27K
39K
150K
68K
150K
2200/50
10/50
0.1
470UH
470UH
1/50
4700P
33
0.027
2200P
1K
KTC3198
0.039
KTC3198
39K
0.1
100
47/16
33K
68K
470UH
BEAD
BEAD
10/50
56K
1K
22K
KRC107M
BA7755A
100
33K
33K
33K
33K
100P
100P
100P
100P
220/16
AN7348K
1/50
100
0.033
120K
100/16
100
100/16
0.033
120K
33
33
1/50
0.068
1/50
22/16
10M
1/50
10/50
1/50
22/16
22K
1/50
3300P
22K
1500P
15K
15K
1500P
1500P
10K
47/16
22K
220/16
0.047
100P
100P
1500P
3300P
10K
KIA7805API
1A3-I
470/25
47/25
KTD2058
MTZJ9.1B
820
0.022
220/16
820
1250mA
KRC107M
100
KTA1271
470/10
390
390
0.01
2200/25
MPSC56
KRC107M
KRC107
KRC107
4.7K
RL153
10/50
4.7K
KRC107
15K
1SS133
LC75348
1K
100P
1K
1K
100P
100P
10K
120K
KTA1266
8.2K
1K
390
390
22/16
4.7K
4.7K
0.047
0
.047
BD82N
B
D82N
BD82N
BD82N
0.047
0
.047
DB82N
4000mA
0.047
800mA
1000/25
220/16
0.022
MTZJ13B
KTD2058
KTA1271
470
470
4.7K
0.1
680K
1SS133
1A3-I
10K
KRC107M
RL153
47uH
47uH
47uH
2SC3330
4.7K
0.015
0.015
0.1
0.1
0.1
3300P
11
10
9
8
7
6
5
4
3
2
1
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
V_CHK
D_CLK
TU_DO
VF_CE
REC
CD_R
TU_R
AUX_R
VF_CE
TU_DO
D_CLK
+8.5V
AUX_L
AUX_R
CD_L
TU_L
AUX_L
REC
MUTE
+5.6V
BEAT
+8.5V
+8.5V
+8.5V
+5.6V
V_CHK
BEAT
+5.6V
TU_R
TU_L
CD_R
CD_L
+12V
MUTE
+12V
+8.5V
+5.6V
230V/50Hz
L4591
FU401
T500mA L 250V
4
7
3
1
BL
BW
SUB POWER SUPPLY
10.2V
FUSE(TH)
R-IN
L-IN
MUT/ST-BY
R-OUT
L-OUT
R-NF
0V
26.0V
0V
0V
0V
0V
15.3V
0V
0V
0V
-VS
-VS
+VS
R-CH
L-CH
R-CH
L-CH
R/P
HEAD
HEAD
E
SP481
SP471
WOOFER
WOOFER
RIGHT
LEFT
NC
NC
R
PBNF
R
PBEQ
R
PBOUT
ALC
LOWCUT
R
RECIN
R
RECOUT ALC
NC
NC
VCC
R
IN
L
IN
L
PBNF
L
PBEQ
L
PBOUT
L
RECIN
L
RECOUT
REC/PB
SW
B PB
RIPPLE
FILTER
GND
PHONE
HEAD
NC
NC
NC
TEST
CL
VDD
DI
CE
VSS
Vref
R
OUT
R
BASS2
R
BASS1
R
TRE
R
VRIN
R
SELO
AU
TU
CD
TA
TA
CD
TU
AU
L
SELO
L
VRIN
L
TRE
L
BASS1
L
BASS2
L
OUT
L-NF
EMC USE
TO SHIELD PLATE
TO TUNER GND
3
PT402
1
2
4
5
9.4
16.0
10.0
3.9
4.2
4.5
16.0
12.0
12.6