Baza Porad Serwisowych Baza Porad Serwisowych Baza Porad Serwisowych
BCD
dbX / DOLBY NR CIRCUIT
C
A
MAIN CIRCUIT
A
6.8V
+B
15V
3
IC5(1/2)
+
0V
1
0V
-
2
3
+
1
0V
0V
2
RLY2
IC701, 702
M5218L
CLASS AA AMP
(HEADPHONES)
S719
(
OPEN/CLOSE
-
W6
!
(POWER)
S718-1
on
stanby
C703
C702 50V1
50V1
R45
100
R46
100
VR701-1 10K(A)
VR701-2 10K(A)
R47
R48
16.2V
100K
100K
0V
0V
IC701(1/2)
(PHONES LEVEL)
IC702(1/2)
0V
0V
JK1-2
Lch
16.2V
2
8
-
+
3
3
+
-
2
-16.6V
ELEKTRONIKI
stanby
on
S718-2
B
POWER SWITCH/HEADPHONES CIRCUIT
a
b
c
d
e
Rch
4
1
0V
1
0V
LINE OUT
IC701(1/2)
0V
5
+
7
R721
33
R723
10
R724
10
R722
33
8
16.2V
+
5
0V
IC702(1/2)
0V
6
4
-16.6V
0V
R727
R719 18
R720 18
R728
0V
7
-
3.3K
R725
R726
3.3K
6
0V
1K
1K
HEADPHONES
JK2
C701 0.022
Q401
Q403
-0.3V
-0.3V
2
REF
100K
Q404
4
5.6V
24
OFF
En
5
0V
6
L401
5
4
3
4041
4
L402
5
6
91K
R809
C807
10V22
0V 0V
23
De
-
+
6
C808
10V22
91K
R810
4
0V
R811
4.7K
C809 0.1
N
22
OFF
En
N
C810 0.1
R812 4.7K
R403 680K
C403 1500P
6.6V
5
3839
-6.8V
R404 680K
C404 1500P
R813
C813
33K
3300P
R817 33K
C811 0.1
0V
0V
21
De
OFF OFF
De
8
7
C812 0.1
R818 33K
R814 33K
C814
3300P
R405 1.8K
R423
5.1K
67
37
36
R424
5.1K
R406 1.8K
C815
3300P
C819 0.18
0V
0V
20
19
En
+
+
-
9
10
0V
0V
C820 0.18
R816 6.8K
C816
3300P
C405 680P
R407 3K
TP13
0V
8
M0A
M0A
0V 0V
TP14
R408 3K
C406 680P
R815
6.8K
R819
C827
50V3.3
C823 25V22
-6.4V
18
17
En
11
12
-6.1V
-6.4V
C824
25V22
330P
C818
9
3435
C817
18K
16
De De
13
0V
R401 680K
C401 1200P
R431 22K
R421
2.7K
6.6V
IC401
CX20187
DOLBY NR (B/C)
R422 2.7K
R432 22K
C402 1200P
C801 25V22
6.6V
IC501
C802 25V22
C40 50V10
C39 50V10
a
b
d
e
CP1
1
2
5
c
4
3
6.6V
-6.8V
R139
100K
R140
100K
IC501
AN6294NK
dbX AMP
1
2
3
IC401
3
2
1
0V
R402 680K
Q401~404
2SD1450RSTA
MPX CONTROL
C803
R803 22K
R807
6.6V 0V
27
28
Block diagram of IC501
indicates Rch only
-
+
En
De
De
OFF
2
1
0V
22K
R804
R808
C804
0V
1
MODE
CTRL
42
R417
-0.3V
Q402
0.015
6.2K
C805 330P
R805 24K
0V
26
25
En
OFF
3
0V 0V 0V 0V 0V
R806 24K
C806 330P
6.2K
0.015
0V
330P
6.6V
En
-6.8V
L403
R409
R410
L404
R412
C821
R821
R827
+
R828
R820
430
10
430
3.6K
0.018
1,8K
2.2M
15
OFF
-
14
2.2M
18K
3.6K
R411
4
1
0V
11
3233
0V 0V
1
4
R823 12K
R825
6.6V-6.1V
-6.8V
C828
50V3.3
1,8K
R822
C822
0.018
1.1K
0V
HIS
HIS
C408
C825 1800P
R824 12K
C407 4700P
4700P
R826
1.1K
R39
22K
C79
47P
R36
100
R40
22K
CN6A(1/2)
+B
CN68
-B
CN6A(1/2)
a
b
c
a
c
d
e
R35 100
R37
25V22
R38
25/22
CN1
R31
3.3K
0V
R33
3.3K
1K
C19
10K
R43
IC6(1/2)
R32
3.3K
0V
33K
R34
1K
C20
R44
10K
7
7
6
6
5
5
4
4
3
3
2
2
1
1
9
9
10
10
88
1
2
5
4
3
8
0V
7
4
-15V
IC5(1/2)
-15V
-B
15V
8
+
0V
7
4
-15V
C80
47P
C551
0.033
a
C552
0.033
b
16.2V
-16.6V
6.8V
0.47
C409
C411
-6.5V -6.5V
0V
13
12
H DET
30
31
0V
ELEKTRONIKI
0.47
C410
6.8K
R414
3.3K--(PP)
3.9K--others
R829
C826 1800P
R413 6.8K
0.15
14
29
-6.8V
-6.5V-6.5V
C413 0.015
15
28
0.15
C412
C414
0.015
3.3K--(PP)
3.9K--others
R830
8.2K
R429
R415 680
470
R433
C415 0.22
C417 0.068
C419
0.047
-6.2V
C416 0.22
16
27
L DET
L DETH DET
-6.3V
IC11
IC12
17
C418 0.068
-6.5V
-6.5V
C420
R416
18
2526
0.047
680
14
1
14
0V
0V
C423 0.01
C421 6800P
0V 0V
20
19
LIS
LIS
23
24
0V
0V
0.01
C422
C424
6800P
6.6V
-6.8V
-6.8V
13
2
3
0V
0V
-6.8V6.6V
-6.8V
13
2
3
1
0V
0V
IC11, 12
MN4066B
NR SELECT
0V 0V
0V
0V
0V
C425
50V47
C426
50V47
470
R434
8.2K
R430
0V 0V
1112
4
0V
1112
4
21
22
0V
10
R420
5
-6.8V
0V 0V
10
5
-6.8V
0V
9
(4.8V)
6
6.6V
8.2K--(PP)
18K--others
9
(4.8V)
6
6.6V
R419
8
7
-6.8V
8
7
0V
0V
-6.8V
R440 33K
8.2K--(PP)
18K--others
CP2
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
R21 22K
IC2(1/2)
R23 22K
R22
22K
R24
22K
a
4.6V
IC3(1/2)
C29
25V10
R157 5.6K
R61 10K
C11
47P
0V
0V
C9 1500P
C10 1500P
b
a
R158
5.6K
R62
-6.8V
R25 22K
2
3
-7V
6
0V
0V
5
b
10K
6.8V
8
-
+
4
-7V
C12 47P
R26 22K
-
+
IC2(1/2)
Q618
6.6V 14.8V
C637 10V100
R641
-7.5V
C638 10V100
-6.8V
R991
2.2K
0V
7
0V
2.2K
2,2K
R642
Q619
R669 4.7K
R201 18K
R202 18K
7.2V
PLAYBACK GAIN
ADJ. (L ch)
2.7mH
R27 330
1200P
0.027--(PP)
C13
0.01-- others
PLAYBACK EQ AMP
PLAYBACK GAIN
ADJ. (R ch)
R28
2.7mH
330
1200P
0.027--(PP)
0.01--others
27---(EB, GN)
120---others
R639
0.01
C619
C635
10V100
C636
10V100
0.01
C620
-14.8V
R644
27---(EB, GN)
120---others
R995 10K
6.6V 4.6V
14
IC9
1
0V
L1
C70
C15 0012
IC1,2
M5219L
L2
C69
C14
C16 0.012
R640
C634
10V100
C632
10V100
R643
c
13
2
C17
25V10
VR3
R29
C18
25V10
VR4
R30
6.8V
2.2K
2.2K
-7V
d
12
3
0V 0V
5K(B)
1.8K
5K(B)
1.8K
Q616
Q617
4.6V
15V
7.4V
-7.6V
-15V
11
4
R627
R632
e
0V
0V
0.01
C616
2.2K
C633
10V100
2.2K
C631
0.01
C615
MN4066B
SWICHING
0V
10
9
5
6
-1.4V
10V100
IC9
0V
-1.4V
R628
R631
8
7
2.2K
2.2K
0V
-6.8V
8.2K
R427
CX20187
DOLBY NR (B/C)
6.6V
IC451
Q616, 618
2SD592AQRSTA
REGULATOR
Q617, 619
2SB621ARSTA
REGULATOR
6.6V
0V
6
8
-
+
5
IC4(1/2)
IC4
M5218L
REC CAL. CONT.
IC4(1/2)
2
-
0V
+
4
3
-6.8V
D1~4
MA165TA
Q18
2SD1450RSTA
REC CAL. CONT.
R463 18K
IC451
0V
7
R69 5.6K
1
0V
33K
R70
0V
1
MODE
CTRL
42
6.6V
C32 1200P
R66
15K
D1
D2
C33 0.01
R67
47K
D3
D4
2
REF
41
-5.7V
100K
R461
R425 10K
1200P
C35
C36
0V
0V
3
40
R464 18K
7V
2SA1309AQSTA
REC CAL. CONT.
2SC3311AQSTA
REC CAL. CONT.
C31
R65
15K
R71 6.8K
3300P
REC CAL. ADJ.
C34
0.01
R68
47K
R72 22K
0.027
-1.4V
Q18
2.2K
R465
R467
0V 0V 0V
6.6V
5
4
38
39
0V
-7V
R466 2.2K
R468 10K
Q15, 16
Q17
REC CAL. ADJ. (BIAS)
R137 3.9K
VR10 5K(B)
R73 820
(LEVEL)
VR9 5K(B)
R80
3.3K
0V
R74 820
R996 22K
10K
6
37
Q15
R79
5.6K
R82
2K
Q17
Q16
-0.8V
R497
2.2K
R498
2.2K
7
36
0V
0V
50V4.7
C472
50V4.7
R138
1.8K
R77
390
C38
25V10
R78 390
C471
MOA
MOA
35
-0.8V
R81
2.7K
-0.8V
R994
8
R452 1.6K
10K
R451
1.6K
1
C451 680P
0V
910
34
0V
R454
C452 680P
IC502
AN6294NK
dbx AMP
6.6V
C37 25V10
4
R453
0V
33
0V
430
4
1
C453 4700P
L451
C455
430
0V
0V
11
12
HLS
HLS
32 31 30
0V
0V
C454
4700P
C456
L452
15V
d
a
c
e
R457 6.8K
C459 0.015
0.15
C457
0.47
-6.6V
13
H DET
H DET
ELEKTRONIKI
-6.6V -6.6V
0.47
C458
14
29
0.15
R458 6.8K
-6.6V
15
28
C460 0.015
C461
0V
0V
C462
IC502
C852 25V22
0.22
16
27
0.22
-6.4V
L DET
L DET
-6.3V
C851
25V22
C463
C464
680
R459
C465
0.047
0.068
0V
18
17
26 25
-6.5V
0V
0.068
C466
0.047
C468
R460 680
6.6V
C853
R853 3.6K
R857
0V
6.6V
28
27
Block diagram of IC502
indicates Rch only
-
+
En
De
De
OFF
2
1
0V
3.6K
R854
R858
C854
C467 6800P
19
24
6800P
0.015
6.2K
26
OFF
3
6.2K
0.015
C469 0.01
0V-6.6V
20
LLS
LLS
23
0V 0V
0.01
C470
C855
330P
R855 24K
C877
50V3.3
0V 0V
25
En
4
0V
0.1V
C878
20V3.3
R856 24K
C856 330P
0V
21
22
91K
R859
C859
0.1
C857
10V22
0V 0V
24
23
OFF
En
De De
En
-
+
5
6
0V 0V 0V 0V
C858
10V22
R876 1.1K
12K
R874
C860 0.1
R862 4.7K
91K
R860
OFF
R861
4.7K
N
N
0V
5
a
b
(-6.4V)
6.6V
6.6V
-7V
0V 0V
0V
-7V
9
(4V)
6
-7V -7V
0V
8
7
100K
R155
IC7, 8
MN4066B
NR SELECT
IC7
14
1
0V 0V
13
2
10
12
11
4
5
3
0V
0V
+
0V
6
10K
R41
IC5, 6
M5218L
CLASS AA AMP
IC6(1/2)
0V
R42
5
0V
6
10K
a
b
c
d
e
f
(-6.4V)
-7V
6.6V
13
14
IC8
3
2
1
0V 0V
0V
R863
C863
3300P
33K
C865
R867
33K
C861 0.1
0V 0V
0V
0V
2122
20
De
En
OFF
+
-
7
9
8
0V
C862 0.1
R868 33K
C866
R864 33K
C864
3300P
3300P
19
10
3300P
R865
6.8K
C869
0.18
-6.2V
18
-
+
11
-6.2V -6.6V
0V
C870 0.18
R866
6,8K
15V
-15V
C867
330P
C868
18K
R869
C873 25V22
-6.6V
17
16
OFF
En
De
12
13
C874
25V22
18K
R870
330P
C871
0.018
18K
R871
R873 12K
2.2M
R877
6.6V
15
OFF
De
En
-
+
14
-7V
-7V
VR502
5K(B)
2.2M
R878
1,8K
R872
C872
0.018
dbx TIMING ADJ.
6.6V
0V
10
1112
5
4
0V
001
C931
C875
1800P
R879
430
R875
1.1K
C876
1800P
TP3
dbx TIMING
ADJ.
TEST POINT
0V
-7V
R881
R880
R680 22K
1K
430
0V
0V
9
8
(4V)
67
-7V
-7V
TP4
2SD1450RSTA
STABILIZER
2SD592AQRSTA
REGULATOR
2SB621ARSTA
REGULATOR
C932
6.6V
C629 10V100
C630 10V100
-7V
Q937
Q614
Q615
D651
MA165TA
R68(-6.3V)
22K -15V
0.01
R682
47K
Q614
R635 2.2K
R636 2.2K
Q615
14V
7.2V
-7.6V
-14.6V
27--(EB, GN)
100K
R156
D926
MA165TA
D928
MA165TA
D927
MA165TA
(-7V)
6.5V
Q937
-7V
R218
C933 4700P
C934 4700P
R633
C617
R634 2.2K
C627 10V100
R637
2.2K
C628 10V100
C618
R638
120--others
22K
R217 22K
R216 22K
0.01
0.01
R213 47K
R215 47K
27--(EB, GN)
120--others
R214 47K
IC1(1/2)
6.8V
2
8
-
0V
1
+
3
R19 10K
0V
0V
S
D
Q7
G
-2.7V
R13
2.2M
Lch
Q1~4
2SK170BLVTP
PLAYBACK EQ CONT.
CP17
1
2
R1
(E, EB, EG, GC, GN)
2SK381BCDTA
PLAYBACK EQ CONT.
68K
areas
Q5~8
R3
Q3
0V
G
C1
150P
R5
4.7K
S
4.7K
C3
R141
0.018
1K
Q1
DD
3.1V
3.1V
0.3V
G
S
0.3V
C7
R7 4.7K
R9
12K--(PP)
15K--others
0V
R15
6.3V470
47
R17 560K
C5 5600P
0V
S
Q5
G
R11
3.1V
3.1V
0V
D
-10.6V
2.2M
PLAYBACK HEAD
12K--(PP)
15K--others
R16
0V
Q6
C910
50V22
R208 100K
7
-13.8V
4
-15V
RLY1
R56
R58
IC1(1/2)
3.1V
6
-
3.1V
+
4
5
-7V
R18 560K
C6 5600P
D
S
R12
2.2M
D921
MA165TA
ELEKTRONIKI
0V
5.6K
33K
SD
0V
0V
G
-10.6V
Q945
2SC3311AQSTA
MUSIC SELECTOR
D922
MA165TA
R209
1K
C904 50V1
7V
a
b
c
d
0V
3
+
0V
-
2
R55 5.6K
0V
R57 33K
IC3(1/2)
5
+
0V
4
6
-6.8V
0V
-0.8V
Q14
0V
7
R20 10K
0V
-2.7V
G
Q8
R14
2.2M
Q945
47K
R210
0V
10K
R211
IC3
M5238L
BUFFER AMP
(REC)
6.6V
8
0V
1
R59
36K
C27
39P
R63
22K
-0.8V
Q13
C30
25V10
7
0V
R60
36K
R64
C28
22K
39P
R4
Q4
3.1V
Rch
4
3
(E, EB, EG, GC,
R2
68K
GN) areas
C901 8200P
1 1
R204 820
Magnetofon kasetowy Technics RS-B965
JK (---)
Lch
R49
27K
G
0V
C2
150P
15V
+B
0V
3
+
0V
2
-
100
R205
C902
16V10
-B
-15V
Q9, 10
2SC3311AQSTA
MUTING
C23
25V10
0V
Q9
0.3V
0.3V
LINE IN
Q10
C24
25V10
C25
25V10
Q11
Q12
C26
25V10
0V
Q11~14
2SA1309AQSTA
MUTING
OV
-0.8V
-0.8V
OV
CD
DIRECT IN
Rch
Lch
Rch
JK3
R50
27K
R143
27K
R144
27K
R6
4.7K
MUSIC SELECTOR
R142
1K
D
S
C4
0.018
Q2
R8 4.7K
IC13
M5218L
4.7K
D
S
0.3V
IC13(1/2)
15V
8
1
R212
82K
C903
47P
R51
22K
R52
22K
R53
22K
R54
22K
0V
R207
D923
MA165TA
D924
MA165TA
0V
1.5V
R997 2.2K
3.1V
0V
G
47
R10
C8
6.3V470
39K
R206
IC13(1/2)
5
+
6
-
3.3K--(PP)
4.7K--others
D925
MA165TA
SERWIS ELEKTRONIKI SERWIS ELEKTRONIKI SERWIS ELEKTRONIKI
Lch
PLAYBACK HEAD
Rch
A
MAIN CIRCUIT
Q1~4
2SK170BLVTP
PLAYBACK EQ CONT.
CP17
1
2
R1
(E, EB, EG, GC, GN)
2SK381BCDTA
PLAYBACK EQ CONT.
4
3
R2
(E, EB, EG, GC,
GN) areas
68K
68K
areas
Q5~8
A
Baza Porad Serwis
6.8V
R3
Q3
0V
G
C1
150P
R4
Q4
3.1V
G
0V
0.3V
C2
150P
R5
4.7K
4.7K
C3
R141
0.018
1K
Q1
DD
3.1V
3.1V
0.3V
G
S
0.3V
S
C7
C4
0.018
Q2
R9
R6
4.7K
3.1V
D
G
S
0.3V
R10
C8
4.7K
R142
1K
D
S
R7 4.7K
R8 4.7K
12K--(PP)
15K--others
0V
R15
6.3V470
47
12K--(PP)
15K--others
0V
R16
47
6.3V470
R17 560K
C5 5600P
0V
S
Q5
G
R11
IC1(1/2)
R18 560K
C6 5600P
S
0V
Q6
R12
2.2M
3.1V
3.1V
2.2M
3.1V
3.1V
0V
D
-10.6V
D
0V
G
-10.6V
2
-
+
3
6
-
+
5
IC1(1/2)
6.8V
8
0V
1
R19 10K
0V
0V
S
D
Q7
G
-2.7V
R13
2.2M
0V
7
4
-7V
R20 10K
SD
0V
0V
-2.7V
G
Q8
R14
2.2M
R21 22K
IC2(1/2)
R23 22K
R22
22K
R24
22K
C11
47P
C9 1500P
C10 1500P
R25 22K
2
0V
3
0V
-7V
6
0V
0V
5
-
+
C12 47P
R26 22K
-
+
IC2(1/2)
6.8V
8
4
-7V
R27 330
0V
R201 18K
R202 18K
7
0V
PLAYBACK GAIN
ADJ. (L ch)
C17
L1
25V10
2.7mH
C70
1200P
0.027--(PP)
C13
0.01-- others
C15 0012
IC1,2
M5219L
PLAYBACK EQ AMP
PLAYBACK GAIN
ADJ. (R ch)
C18
L2
R28
330
2.7mH
C69
1200P
0.027--(PP)
0.01--others
C14
25V10
C16 0.012
VR3
R29
VR4
R30
R427
5K(B)
1.8K
5K(B)
1.8K
1
Magnetofon kasetowy Technics RS-B965
JK (---)
Lch
LINE IN
Rch
JK3
Lch
CD
DIRECT IN
Rch
R49
27K
R50
27K
R143
27K
R144
27K
C901 8200P
R204 820
15V
+B
0V
3
+
0V
2
100
R205
C902
16V10
-B
-15V
Q9, 10
2SC3311AQSTA
MUTING
C23
25V10
0V
Q9
Q10
0V
C24
25V10
2SA1309AQSTA
C25
25V10
OV
Q11
Q12
OV
C26
25V10
M5218L
MUSIC SELECTOR
IC13(1/2)
15V
8
0V
1
-
R212
82K
C903
47P
R51
22K
0.3V
R52
22K
Q11~14
MUTING
R53
22K
-0.8V
R54
22K
-0.8V
IC13
R207
D923
MA165TA
D924
MA165TA
39K
R206
IC13(1/2)
0V
5
+
6
1.5V
3.3K--(PP)
4.7K--others
MA165TA
R997 2.2K
-
D925
4
-15V
C910
-13.8V
7
50V22
R208 100K
RLY1
D921
MA165TA
R56
5.6K
33K
R58
Q945
2SC3311AQSTA
MUSIC SELECTOR
D922
MA165TA
R209
1K
47K
R57 33K
c
d
0V
0V
+
-
C904 50V1
a
b
3
+
-
2
0V
IC3(1/2)
4
-6.8V
-0.8V
R210
0V
10K
R211
IC3
M5238L
BUFFER AMP
6.6V
8
1
R59
36K
C27
39P
-0.8V
Q13
7
0V
R60
36K
C28
39P
ELEKTRONIKI
7V
R55 5.6K
0V
5
0V
6
0V
Q14
Q945
(REC)
IC3(1/2)
0V
R63
22K
C30
25V10
R64
22K
a
C29
25V10
4.6V
R157 5.6K
R61 10K
b
R158
5.6K
a
R62
b
10K
Q618
6.6V 14.8V
7.2V
C637 10V100
2.2K
R641
2,2K
R642
-7.5V
C638 10V100
-14.8V
-6.8V
Q619
R991
2.2K
IC9
R669 4.7K
27---(EB, GN)
120---others
27---(EB, GN)
120---others
R995 10K
R639
C635
C636
C620
R644
0.01
C619
10V100
10V100
0.01
6.6V 4.6V
14
1
Q616
6.8V
15V
C634
C632
R643
2.2K
R640
10V100
10V100
2.2K
7.4V
2.2K
R627
2.2K
R632
-7.6V
-15V
-7V
C616
C633
C615
0.01
10V100
C631
10V100
0.01
R628
R631
2.2K
2.2K
Q617
IC9
e
0V
11
4
0V
MN4066B
SWICHING
0V
0V
10
9
5
6
-1.4V
-1.4V
0V
8
7
-6.8V
d
c
4.6V
13
12
3
2
0V
0V 0V
-6.8V
SERWIS ELEKTRON
R427
8.2K
R463 18K
IC451
CX20187
DOLBY NR (B/C)
6.6V
IC451
1
42
0V
MODE
CTRL
6.6V
R461
REF
100K
2
41
-5.7V
3
40
R464 18K
7V
B
a
C471
R497
2.2K
2.2K
R465
10K
R467
0V 0V 0V
6.6V
0V
5
4
38
39
-7V
R466 2.2K
7
6
37
36
0V
R498
2.2K
R468 10K
50V4.7
MOA
MOA
35
C472
50V4.7
8
R452 1.6K
R451
1.6K
1
C451 680P
0V
910
33
34
0V
430
R454
C452 680P
L451
4
430
R453
0V
0V
11
HLS
HLS
32 31 30
0V
0V
4
L452
1
C453 4700P
C454
12
4700P
0V
0V
C455
C456
0.47
13
0.47
R457 6.8K
C459 0.015
0.15
C457
-6.6V
14
H DET
H DET
ELEKTRONIKI
29
-6.6V -6.6V
0.15
C458
R458 6.8K
-6.6V
15
28
C460 0.015
C461
0V
0V
C462
0.22
16
27
0.22
-6.4V
L DET
L DET
-6.3V
C463
0.068
17
26 25
C464
0.068
C465
-6.5V
R459
0.047
C466
680
18
0.047
R460 680
C469 0.01
C467 6800P
0V
0V
C468
19
24
6800P
0V-6.6V
20
LLS
LLS
23
0V 0V
0.01
C470
0V
21
22
b
(-6.4V)
6.6V
6.6V
-7V
0V 0V
0
V
13
14
10
12
9
11
IC7
(4V
5
6
0V
0V
C931
V
-7
-7V
0V
0
V
9
10
(4V
5
6
-7V
V
-7
001
R680 22K
IC8
1
0V 0V
6.6V
14
1
0V
2
3
(-6.4V)
-7V
13
3
2
0V 0V
6.6V
0V
4
0V
1112
4
Q616, 618
2SD592AQRSTA
REGULATOR
Q617, 619
2SB621ARSTA
REGULATOR
6.6V
0V
6
8
7
+
5
IC4(1/2)
IC4
M5218L
REC CAL. CONT.
IC4(1/2)
2
-
1
0V
+
4
3
-6.8V
D1~4
MA165TA
Q18
2SD1450RSTA
REC CAL. CONT.
R425 10K
Q15, 16
2SA1309AQSTA
REC CAL. CONT.
Q17
2SC3311AQSTA
REC CAL. CONT.
IC502
AN6294NK
dbx AMP
15V
C851
25V22
IC502
6.6V
VR10 5K(B)
R73 820
(LEVEL)
VR9 5K(B)
R74 820
R996 22K
R80
3.3K
R137 3.9K
REC CAL. ADJ. (BIAS)
R138
1.8K
0V
-0.8V
Q15
R77
390
C38
R79
25V10
5.6K
R82
R81
2K
2.7K
0V
Q16
-0.8V
-0.8V
R78 390
R994
10K
Q17
0V
C37 25V10
C852 25V22
d
a
c
e
C31
C32 1200P
R66
15K
1200P
R65
C35
15K
R71 6.8K
3300P
D1
D2
0V
R69 5.6K
REC CAL. ADJ.
C34
C33 0.01
0V
R70
33K
R67
47K
0.01
R68
D3
D4
47K
R72 22K
C36
0.027
-1.4V
0V
Q18
6.6V
C853
0.015
R853 3.6K
6.2K
R857
R855 24K
C877
0V 0V
0V
6.6V
28
27
26
Block diagram of IC502
indicates Rch only
-
+
En
OFF
R854
3.6K
En
De
OFF
2
3
0V
0V
C878
R856 24K
C856 330P
6.2K
R858
C854
0.015
De
1
C855
330P
50V3.3
25
4
20V3.3
0.1V
91K
R859
R861
4.7K
C859
0.1
N
C857
10V22
0V 0V
24
En
5
0V
23
OFF
OFF
En
De De
-
+
7
6
0V 0V 0V 0V
N
C858
10V22
R876 1.1K
12K
R874
C860 0.1
R862 4.7K
91K
R860
C863
C864
3300P
C861 0.1
2122
C862 0.1
3300P
0V
De
8
R868 33K
R864 33K
R863
33K
R867
33K
20
OFF
9
C865
3300P
0V 0V
19
En
+
-
10
0V
C866
3300P
C867
R865
6.8K
C869
0.18
-6.2V
18
-
+
11
-6.2V -6.6V
0V
C870 0.18
R866
6,8K
15V
-15V
330P
R869
C873 25V22
-6.6V
17
OFF
En
12
C874
25V22
R870
C868
18K
16
De
13
18K
330P
C875
1800P
R879
430
C871
0.018
18K
R871
R873 12K
R875
1.1K
2.2M
R877
6.6V
15
OFF
De
En
-
+
14
-7V
-7V
VR502
5K(B)
2.2M
C876
R878
1,8K
R872
dbx TIMING
C872
0.018
TEST POINT
dbx TIMING ADJ.
1800P
TP3
ADJ.
R881
R880
1K
430
wych Baza Porad Serwisowych
C
dbX / DOLBY NR CIRCUI
C
+B
15V
V
0V
9
(4V)
6
-7V -7V
V
0V
9
(4V)
67
-7V
R680 22K
8
7
8
TP4
0V
0V
-7V
6.6V
C629 10V100
C630 10V100
-7V
D651
MA165TA
R68(-6.3V)
22K -15V
C932
0.01
R682
47K
Q614
R635 2.2K
Q615
R636 2.2K
100K
R155
IC7, 8
MN4066B
NR SELECT
100K
R156
D926
MA165TA
D928
MA165TA
D927
MA165TA
(-7V)
6.5V
Q937
-7V
R218
22K
R217 22K
R216 22K
C933 4700P
C934 4700P
R633
14V
0.01
C617
7.2V
R634 2.2K
C627 10V100
R637
2.2K
C628 10V100
-7.6V
0.01
C618
R638
-14.6V
27--(EB, GN)
120--others
R213 47K
R215 47K
27--(EB, GN)
120--others
0V
0V
10K
R41
IC5, 6
M5218L
CLASS AA AMP
IC6(1/2)
0V
0V
10K
R42
a
R214 47K
b
c
d
e
f
5
8
+
0V
7
4
-15V
6
IC5(1/2)
-15V
-B
15V
5
8
+
0V
7
4
6
-15V
C551
0.033
a
C552
0.033
b
16.2V
-16.6V
R39
22K
C79
47P
R36
100
R40
22K
C80
47P
CN6A(1/2)
+B
CN68
-B
CN6A(1/2)
a
b
c
R35 100
R37
1K
C19
25V22
R38
1K
C20
25/22
10
R31
3.3K
0V
R33
3.3K
10K
R43
R32
3.3K
0V
33K
R34
7
7
6
6
5
5
4
4
3
3
2
2
1
1
9
9
10
88
3
IC5(1/2)
+
0V
1
0V
-
2
IC6(1/2)
R44
10K
3
+
1
0V
0V
2
RLY2
IC701, 702
M5218L
CLASS AA AMP
(HEADPHONES)
S719
(
OPEN/CLOSE
-
W6
!
(POWER)
S718-1
on
stanby
C703
C702 50V1
50V1
R45
100
R46
100
VR701-1 10K(A)
VR701-2 10K(A)
R47
R48
16.2V
100K
100K
0V
0V
IC701(1/2)
(PHONES LEVEL)
IC702(1/2)
0V
0V
JK1-2
2
-
+
3
3
+
-
2
ELEKTRONIKI
stanby
on
S718-2
B
POWER SWITCH/HEADPHONES CIRCUIT
Lch
Rch
16.2V
8
4
-16.6V
1
0V
1
0V
LINE OUT
IC701(1/2)
0V
5
+
R721
33
R723
10
R724
10
R722
33
8
16.2V
+
5
IC702(1/2)
7
0V
0V
6
4
-16.6V
0V
R719 18
R720 18
0V
7
-
R727
3.3K
R725
R726
R728
3.3K
6
0V
1K
1K
HEADPHONES
JK2
C701 0.022
R431 22K
R421
2.7K
6.6V
CX2018
DOLBY NR
R422 2.7K
R432 22K
IC501
C401 1200P
IC401
C801 25V22
6.6V
C802 25V2
C402 1200P
T
I
C
7
G
T
Q937
2SD1450RSTA
STABILIZER
Q614
2SD592AQRSTA
REGULATOR
Q615
2SB621ARSTA
REGULATOR
C40 50V10
C39 50V10
CN1
1
a
c
d
e
a
b
2
5
c
4
d
e
3
d
CP1
a
1
b
2
5
c
4
e
3
6.6V
-6.8V
R139
100K
R140
100K
IC501
AN6294NK
dbX AMP
C401 1200P
C402 1200P
R401 680K
IC401
R402 680K
D
6.8V
Q401
Q403
-0.3V
-0.3V
2
REF
100K
Q404
5.6V
6
L401
5
4
5
6
3
4041
4
L402
0V
R403 680K
C403 1500P
R405 1.8K
R423
5.1K
6.6V
67
5
4
37
3839
-6.8V
R424
5.1K
R406 1.8K
0V
R404 680K
C404 1500P
R407 3K
TP13
0V
8
M0A
M0A
36
0V 0V
TP14
R408 3K
C405 680P
9
3435
C406 680P
0V
1
2
3
0V
1
MODE
CTRL
42
R417
3
2
1
0V
-0.3V
Q402
0V
L403
R409
R410
L404
R412
1
430
10
430
3.6K
3.6K
R411
4
0V
11
3233
0V 0V
1
4
0V
HIS
HIS
C408
C407 4700P
12
31
4700P
C409
0V
0V
C410
C413 0.015
R413 6.8K
0.47
0.15
C411
6.8K
14
29
-6.8V
0V
15
28
0V
-6.5V-6.5V
0.15
C412
C414
0.015
-6.5V -6.5V
13
H DET
30
ELEKTRONIKI
0.47
R414
C415 0.22
C416 0.22
16
27
-6.2V
L DET
L DETH DET
-6.3V
C417 0.068
17
C418 0.068
-6.5V
-6.5V
C419
C420
R416
R415 680
0.047
18
2526
0.047
680
C421 6800P
0V 0V
19
24
0V
C422
6800P
0V
LIS
LIS
C424
C423 0.01
20
23
0.01
8.2K
R429
470
R433
C425
50V47
0V 0V
21
22
0V
C426
50V47
470
R434
8.2K
R430
R440 33K
0V
.6V
28
1
2 25V22
1
Q401~404
2SD1450RSTA
MPX CONTROL
C803
0.015
R803 22K
6.2K
R807
C805 330P
R805 24K
6.6V 0V
0V
27
26
25
Block diagram of IC501
indicates Rch only
-
+
En
De
En
De
OFF
OFF
3
2
0V 0V 0V 0V 0V
0V
R806 24K
22K
R804
C806 330P
6.2K
R808
C804
0.015
R419
8.2K--(PP)
R815
R811
OFF
4.7K
N
22
N
C813
3300P
C811 0.1
0V
21
De
8
7
C812 0.1
C814
3300P
R813
6.8K
33K
C815
3300P
R817 33K
C819 0.18
0V
0V
0V
20
18
19
En
De
R818 33K
R814 33K
-
+
OFF OFF
+
-
11
9
10
0V
0V
-6.1V
C820 0.18
R816 6.8K
C816
3300P
C818
C827
50V3.3
C823 25V22
-6.4V
17
En
12
-6.4V
C824
25V22
330P
330P
C817
C821
18K
R819
6.6V
16
De De
En
13
-6.8V
R821
R827
+
R828
R820
0.018
2.2M
15
OFF
-
14
2.2M
18K
1,8K
6.6V-6.1V
-6.8V
R823 12K
C828
50V3.3
R822
C822
0.018
1,8K
R825
1.1K
C825 1800P
R824 12K
R826
1.1K
R829
C826 1800P
3.3K--(PP)
3.9K--others
3.3K--(PP)
3.9K--others
R830
IC11
91K
R809
C809 0.1
C807
10V22
0V 0V
24
23
OFF
En
De
En
-
+
4
5
6
C808
10V22
C810 0.1
R812 4.7K
91K
R810
IC12
6.6V
-6.8V
13
14
2
1
0V
0V
-6.8V6.6V
13
14
2
1
0V
0V
IC11, 12
MN4066B
NR SELECT
-6.8V
0V 0V
0V
9
10
1112
(4.8V)
5
3
0V
-6.8V
3
0V
6
4
1112
6.6V
-6.8V
8.2K--(PP)
R420
18K--others
0V
0V 0V
9
10
(4.8V)
5
4
6
-6.8V
6.6V
18K--others
0V
8
7
-6.8V
0V
8
7
-6.8V
CP2
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
10
11
12
13
14
15
16
17
18
19
20
21
A
Baza Porad Serwisowych Baza Porad Serwisowych Baza Porad Serwisowych
BCD
Baza Porad Serwisowych
E F
Magnetofon kasetowy Technics RS-B965
Notes:
D
REC AMP CIRCUIT
OVERALL FREQUEYCY
RESPONSE ADJ. (R ch)
OVERALL FREQUEYCY
RESPONSE ADJ. (L ch)
VR301
10K(B)
VR302
10K(B)
D304
R309
MA165TA
10K(B)
2.2K
R999
R953
R952
0.5V
(-0.3V)
560...other
390...(PP)
R959
2.7K
39K
100K
dbx TIMING
g
a
d
c
b
22K--(PP)
68K--others
R99
22K
R100
22K
10K
R958
R957
ADJ.
h
E
g
f
2.7K
R308
3.3K
R961
560
R962
R956
D909
MA165TA
D652
MA165TA
10K
R955
33K
R954
MA165TA
2.7K
MA165TA
3.9K
10K
MA165TA
MA165TA
D910
D908
D303
D911
ac
d
e
b
1.5K
R318
+B
15V
dbx TIMING
ADJ.
TEST POINT
CN2
1`
1 1
2`
3`
4`
5`
6`
7`
8`
9`
OVERALL
GAIN ADJ. (R ch)
OVERALL
GAIN ADJ. (L ch)
MPX
B/C
OUT
-B
1
2
3
TIM
4
L
5
R
6
7
8
X
9
-15V
TP1
R831 1K
VR501 5K(B)
R856
VR6
10K(B)
R88
2.2K
0V
0V
-B
TP2
R85
VR5
R87
Q19
(-0.3V)
0.5V
CN11
Q20
Q19, 20
2SD1450RSTA
MUTING
10`
11`
12`
13`
14`
15`
16`
17`
18`
19`
20`
21`
14.2V
CP11
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
C75
R165
SWITCHING (REC:OFF)
0V
(14.6V)
C76
50V10
IC10
M5218L
REC AMP
50V10
100K
Q951
DTA114ESTP
Q951
15V
(-0.3V)
100K
R166
15V
C42
R145
R97
R319
1K
3.9K
1K
50V10
0V
-15V
IC301
15V
IC10
(1/2)
15V
3
8
(0V)
+
0V
50V0.33
R95
15K
0V
50V0.33
R96
15K
10.1V
-
2
R89
330K
C45
C41
220P
50V 10
R91
27K
C47
R93
6.8K
C49
(2700P)
6800P
(22K)
1K
R105
ELEKTRONIKI
L5
470)
R101
R103
47(82)
C51
(0.022)(1K)
0.018
C53
4700P
0V
-0.8V -0.8V
Q21
IC10(1/2)
5
+
7 0.1V
(0V)
-
0V
4
6
-15V
R90 330K
C46
220P
3.9K
R146
R92
27K
C48
R94
6.8K
C50
6800P
R106
(2700P)
1K
(22K)
D5
D7
R123
R118
D8
1. No mark---For (E, EB, EG, GC, GN) areas.
2. ( ) ----For (pp) area.
HX - PRO ADJ. (Rch) TEST POINT
(470P)
R117
R119
R121
D6
R120
R122
R124
4.7K
MA165TA
100
100
MA165TA
4.7K
4.7K
MA165TA
100
MA165TA
4.7K
18
Vcc
REGULATOR
V
REF
12
C329
50V10
1V
(0.2V)
-0.9V
1.2K
R107
C55
8200P
1V
100
-0.9V
R316
27K
(33K)
15V
17
4.3V
R315
27K
(33K)
9.6V
0.4V
100
R125
100
R127
-9.9V
(3900P)(2.2K)
0V
Q23
9.6V
100
R126
100
R128
-0.3V
-9.9V
-0.3V
0.4V
(0.2V)
R130
C322
0,022
C324
0.01
4.3V
0.8V
16
15
PEAK
ABC
DET
DET
ABS
PEAK
DET
DET
3
4.3V
0.9V
C323
0.01
C321
0.022
1.5K
R131
D9
MA165TA
9.6V
Q19
Q29, 35
2SC3311AQSTA
REC AMP
C43
100P
Q31
-9.9V
D11
MA165TA
1.5K
R129
C57
0.027
R109
3.3K(10K)
5.6K
R111
0V
1.5K
R132
D10
MA165TA
9.6V
Q30
C44
100P
Q32
-9.9V
D12
MA165TA
1.5K
160K
R314
680P
C326
C320
0.033
(0.018)
(1,3V)
(0.8V)
0.5V
14
13
0V
4
5
0V
0.5V
(0.9V)
(1.4V)
C319
(0.018)
0.033
680P
C325
2SD1450RSTA
1K
R133
SWITCHING
10.2V
(REC:OFF)
Q33
0V
Q31, 33
(0.3V)
2SA1309AQSTA
REC AMP
0V
(0.3)
0V
Q37
(0.3V)
Q35
-10.6V
1K
R135
-15V
100
R159
(0.022)
R113
C59
0.018
-0.1V -0.8V
Q25
2SC3311AQSTA
1K
R134
REC EQ AMP
10.2V
2SC3311AQSTA
REC AMP
Q34
2SD1450RSTA
0V
SWICHING (REC:OFF)
(0.3V)
0V
(0.3V)
0V
Q38
(0.3V)
Q36
-10.6V
Q32, 34
2SA1309AQSTA
1K
R136
REC AMP
(120K)
TP16
(2.6V)
13.3V
6
13.3V
(2.6V)
TP15
R313
150K
(470P)
(120K)
Q37
(-0.3V)
0.5V
R115
10K (8,2K)
C61
0.068
0V
Q25~28
Q30, 36
Q38
0.5V
(-0.3V)
(14.2V)
0V
12
VCA
VCA
7
0V
(14.3V)
C65
25V22
R151
For (PP)
2.2K
Q27
C66
25V22
R152 22K
GND
(14.3V)
0V
11
8
0V
(14.3V)
22K
D302
MA165TA
area
R161
(0.047)(2.7K)
C63
100
0.033
1.6V
10
BIAS
VEE
9
(0.018)
R307
4.7K
-15V
(4.5V)
15V
R98
15.5V
C621
C622
-15.6V
C328
1000P
(68P)
1K
Q601
16V220
16V220
Q602
Q303
(15.6V)
L6
R102
C52
15V
(5V)
0.018
18V
D615
D616
-18.4V
For (PP) area
R306 56K
R305 10
C330
470
47(82)
R104
C54
4700P
0V
Q22
!
0.01
C606
MA4150MTA
2SA1309AQSTA
REC EQ AMP
MA4150MTA
0.01
C607
!
HX - PRO ADJ. (Lch)
TEST POINT
a
b
c
UPC1297CA
DOLBY HX PRO
d
e
f
g
h
D301
MA165TA
Q301
(0.1V)
(0.1V)
R304 10
(4.5V)
R310
(1.8K)
2.2K
0.01
1.2K
R108
(1K)
C56
(0.022)
8200P
-0.8V
R605
101/2W
19.2V
Q603
19.2V
R607
560
Q21~24
R608
560
-19.6V
Q604
R606
10V 1/2W
IC 301
L304
For (PP)
area
Q301, 302
2SC3311AQSTA
BIAS OSC
(1.3V)
(0.6V)
Q302
(0.6V)
For (PP) area
R391 39(1/2)
!
(2.2K)
(3900P)
0V
-0.8V
Q24
18.5V
R657
3.3K
-19.6V
-19.6V
Q602
2SBB1357EFTA
REGULATOR
R303
C305
2200P
C306
6800P
C304
2200P
(0.022)
C58
0.027
R110
3.3K (10K)
56K
R112
C60
0V
Q26
Q601
2SD2037EFTA
REGULATOT
2SA1309AQSTA
47K
R658
0.6V
Q622
0.6V
D612
MA165TA
10K
R603
2SD592AQRSTA
BIAS OSC CONT.
C302
25V4.7
18K
C303
3900P
18K
R302
For (EB, GN) areas
R324 39(1/2)
!
!
100
R160
R114
0.018
-0.8V
4,7K
R601
Q603, 622
STABILIZER
Q604
2SC3311AQSTA
STABILIZER
4.7K
R604
Lch
RECORD HEAD
Rch
ERASE
HEAD
AC BIAS TRAP
ADJ. (Rch)
Q303
L301
6
5
4
For (EB, GND) areas
!
R325 39(1/2)
R323
39--(EB,GN) areas.
120--(E,EG,GC) areas.
47--(PP)area
C62
0.068
(0.047)
10K(8,2K)
(2.7K)
2.2K
R116
0V
-0.8V
Q28
R602
4.7K
R162
C64
100
0.033
h
g
a
b
c
d
e
f
1
2
3
(0.018)
C301
CP12
0.015
CP13
1
2
3
4
5
6
7
8
9
10
(8200P)
1
2
3
4
5
6
7
8
9
10
AC BIAS TRAP
ADJ. (Rch)
TEST POINT
CP16
6
5
4
3
2
1
CN12
1
2
3
4
5
6
7
8
9
10
R301
ERASE
CURRENT
ADJ. TEST POINT
For (PP) area
R390
1.8K
Q623
2SD592AQRSTA
POWER SUPPLY
14.4V
Q623
14.2V
(13.4V)
Q304
0V
(14.2V)
CN13
1
-15V
2
3
4
5
VR304 10K(B)
6
7
19.2V
8
9
ERASE CURRENT
10
19.6V
Q304
2SB1030RSTA
BIAS ON/OFF
GND
TP8
1.0
14.2V
R310
TP6
TP5
15V
C68
-15V
0.01
15V
L4
ADJ.
TP7
+B
-B
0.01
C646
47K
R321
R659
1K
C322
AC BIAS TRAP
ADJ. (Lch)
TEST POINT
AC BIAS
TRAP
L3
ADJ. (Lch)
C67
100P--(PP)
120P--others
HX-PRO ADJ. (Lch)
L303
1
2
3
HX-PRO ADJ.
(Rch)
L302
3
2
1
33 1/2W
!
a
b
c
14.2V
120P
C317
TP11
ELEKTRONIKI
6
4
4
6
TP12
C315
C316
C318
120P
47P--(PP)
560P--others
Q934, 942
DTA114ESTP
SYSTEM CONT.
d
g
c
b
11.2V
11.2V
10K
Q942
0V
b
a
10K
C691 0.01
Q953
Q908
DTA114ESTP
SWITCHING
Q908
10K
15V
10K
R916
10K
D905
4.7K
R914
Q912, 915
DTA114ESTP
SOLENOID DRIVE
b
a
d
c
6.8K
R951
c
D907
e
d
10
10
S976
(ATS/METAL)
E
MECHANISM CIRCUIT
D913 MA165TA
10K
11.2V
Q946
4.2V
MA165TA
10K
TAPE END DET.
15V
-21.8V
IC904 (1/2)
1
13.3V
(12.9V)
1.8K
R950
1.5K
R960
D906
7
9
9
7
2
S973
S975
(ATS/Cr0 )
R981
4.7K
C936
50V10
11.2V
10K
11.2V
10K
-5.3V
R998
10K
4.6V
D655
R670
22K
D626
MA165TA
IC904, 905
M5218L
Q907
-15V
G
R912
2.2M
0V
0V
3
+
2
-
0.18
C813
4.6V
D905~907
MA165TA
2
3
2
3
D971 15S133
S971
S972
(HALF)
(MODE)
(F.REC INH)
GP2S06BC
PHOTO COUPLER
Q946
2SC3311AQSTA
SYSTEM CONT.
Q928
10K
R695
-15V
Q934
RY1
D919
S
0V
15V
D
IC904(1/2)
7
0V
R918
56K
-15V
-B
-15V
Q917
14,6V
0V
1
1
D972 15S133
(TRIGGER)
SOLONOID
IC971, 972
R980 12K
(5.6V)
7.5V
R699
C935
R967
Q929~931,933,953
SYSTEM CONT.
2SK381BCDTA
TAPE END DET.
R920
1M
47K
-14.9V
47K
D914
12K
Q927
0.01
-15V
(0.1V)
4.6V
10K
10K
10K
Q933
DTC114ESTP
Q906,907
8
5
+
1.6V
6
-
0.9V
4
4.6V
22K
R947
14.5V
820
0V
R948
14.5V
10K
0V
10K
D916
D917
R979
-14.8
R977
Q916
4.6V
8
8
IC971
4.6V 4.6V
1
2
(BREAK)
SOLENOID
0.1V
270
R971A
Q935
D914~-919
MA165TA
e
f
(4.6V)
-14.9V
4.6V
--13V
---0V
-13V
15V
8
7
4
-15V
14.5V
14.5V
2SA1309AQSTA
SYSTEM CONT.
Q924
-14.6V
-14.6V
-15V
R989 10K
R911
2.2M
D
0V
0V
R917
56K
0V
0.18
C914
4.6V
22K
R945
0V
820
R946
10K
0V
10K
4.6V
Q906
S
15V
Q925
Q912
10K
10K
47K
G
47K
47K
47K
-15V
10K
10K
Q929
14.8V
-14.6V
14.8V
4.6V
15V
Q927, 928
DTC144ESTP
SYSTEM CONT.
12K
D915
47K
-15V
47K
(4.6V)
0V
47K
R891
C690
50V2.2
15V
12K
R924
47K
C930
20V 4.7
820
-22V
R922
Q915
10K
10K
4.6V
(4.6V)
0V
47K
R860
4.6V
50ms.10V/DIV.
IC905(1/2)
1.6V
0.9V
-15V
14.6V
(0V)
4.5V
Q935
0V
D918
-B
4.6V
5
6
Q926
47K
47K
(0V)
4.6V
R919
1M
+
-
Q914
Q913
CN3
6
5
6
5
4.6V
4.6V
3
44
1.6V
18K
R972A
IC972
270
R973A
3
1
2
0.1V
1.6V
18K
R974A
4
4
SOLENOID DRIVE
11
J971
11
15V
Q923
D955
MA165TA
14.8V
4.6V
4.6V
IC905(1/2)
0V
3
+
-
2
14.6V
Q911
14.5V
0V
15
R944
15V
18
R943
Q913,916
DTC114ESTP
47K
47K
Q930
11.2V
4.7K
R913
R915
1
0V
22K
R942
R941
D650
Q910
Q922~926
DTA144ESTP
SYSTEM CONT.
4.6V
Q922
47K
0V
14.8V
2SD592AQRSTA
POWER SUPPLY
10K
820
MA165TA
0V
47K
14.8V
10K
4.6V
4.6V
10K
Q931
Q612,613
14.6V
D625
MA4051MTA
D904
MA165TA
MA165TA
0V
10K
10K
Q905
Q909
0V
10K
10K
(EB,GN)areas
R651
4.7K
4.7K
R650
50V1
C644
Q905, 909
DTC114ESTP
SOLENOID HOLD ON/OFF
4.6V
4.6V
4.6V
Q620,621--(EB,GN)areas
!
1K
R626
D624
D623
MA4091MTA
2.6V
3.3K
R654
4,7K
R909
2.6V
R940
10K
(PP,E,EG,GC)
areas
Q904
dc b
R986 3.3K
R983 4.7K
R949 10K
2SC3311AQSTA
STABILIZER
R625
Q613
12(1/2)
0.01
C614
8.4V
Q620
5.7V
1.8V
2.2K
R652
(EB,GN)areas
R908
1.4V
0V
Q911,914,917
2SB1030RSTA
SOLENOID DRIVE
a
a
c
b
R985 10K
R967 10K
R988 22K
R622
!
3.3(1/2)
IC902
BA6218
REEL MOTOR CONTROL
5.7V
10K
R907
10K
R982 4.7K
5.2V
5.2V
2SC3311AQSTA
N
To CAPSTANMOTOR
(D.D) CIRCUIT ICN201A
d
R984 22K
4.6V
DTC114ESTP
SWITCHING
11V
0.01
C613
D622
MA4082M
R666 100
11.2V
1
3.2V
e
R935 10K
Q902
8.2V
MB88511-250N
MICRO COMPUTER (MECHANISM)
4.2V
22
4.6V
23
4.6V
24
4.6V
25
(0V) 4.6V
26
0V
27
0V
28
4.6V
29
30
31
4.6V
32
3.9V
33
4.3V
34
0.9V
35
1.4V
36
37
0.1V
38
4.6V
39
4.6V
40
0V
41
4.8V
42
Q612
7.8V
1.8V
R623 1K
2
2.2K
R653
3.3K
R655
ELEKTRONIKI
(EB,GN)
areas.
4
3
0V
Q904,910
SWITCHING
W201
3
b
2
11.6V
a
1
F
IC901
DIRECT
C
B
MPX
T/S
HALF
MODE
ARM
EE
AV
ADR
AVCC
KEY1
KEY2
ATS
INH
SYNC
DISP
MSP
M.PULSE
REMOCOM
Vcc
7.8V
Q621
8.2V
D621
MA4075MTA
(EB,GN)
areas.
21
SS
V
4.2V
20
PDF
4.7V
OSCF
19
4.7V
18
RES
1.7V
17
X
2.2V
16
Ex
4.6V
15
OSC
3.2V
14
RMF
0V
13
RMR
4.4V
12
REELPULS
Q625---(EB,GN)areas
SOL2C
11
10
SOL2
9
SOL1
8
CAPM
EJECT.R
7
6
EJECT.F
5
PLAY
4
REC
3
BOS
2
RMT
DMT
1
DTC114ESTP
STABILIZER
R617
R619
390
1.5V
Q902
2.6V
4.6V
4.6V
0.6V
0.1V
0.1V
0.5V(0.6V)
3.3V(0.4V)
14,2V(0.7V)
0.6V(0.1V)
0V
1
10K
10K
14.4V
C612
(0.1V)
IC902
(EB,GN) areas.
78
6
5
5.2V
4
3
4
3
9
0.1V
4.4V
N
C905
16V10
CN4
2
1
W4
2
1
M
REEL
MOTOR
REEL MOTOR CIRCUIT
I
OPERATION SWITCH CIRCUIT
S710
CN5
10
6.4V
-15V
R937
4.6V
-22V
Q608
(EB,GN)
areas
C641
c642
14.6V
MA165TA
MA165TA
C643
68K
25V1000
25v1000
D901
D902
50V220
9
8
7
6
5
4
1
2
3
CN9
10
9
8
7
6
ELEKTRONIKI
5
4
3
2
1
CN8
10
9
8
7
6
5
4
3
2
1
CN7
10
9
8
7
6
5
4
3
2
1
CN604
R645
0.15
CN603
D602
!
D601
CN609
C601
6800P
D607
!
C602
6800P
D608
!
!
D632
1SR35200TB
R646
D603
!
(EB,GN)
areas
CN605
R647
0.15
(EB,GN)
areas
CN607
D604
!
D609
!
D610
!
CN608
CN610
0.15
CN606
Q605
2SC3311AQSTA
STABILIZER
!
T601
CN601
For(GC)
area
CN613
!
Jk6
AC IN
(120V, 60 Hz--(PP)
220V, 50/60Hz--(E,EG)
240V, 50/60Hz--(EB,GN)
110/127/220/240V,
50/60Hz--(GC))
For others
220V
CN612
127V
CN611
!
(VOLTAGE
CN602
110V
S601
240V
S601
ADJ.)
Q932
D903
MA165TA
c
a
-22V
Q608
-30V
2SC3311AQSTA
h
g
f
e
b
c
d
a
4.2V
0.01
C608
(EB,GN)
areas.
RESET
a
b
c
c
d
a
e
b
D631
MA4075MTA
cba
L7
(E,EG)
area
4.2V
Q607
-22.6V
R665
100
TP10
b
a
a
b
Q606, 609
2SB621ARSTA
REGULATOR
Q608
16.2V
D617
MA4330MTA
(EB,GN)
area
-16.6V
Q609
R963
22K
0.1V
10K
(0V)
10K
-30.4V
D615
MA4220MTA
!
27 1/2W
ISR35200TB
!
19.2
16.8V
-17.4V
-19.6V
D613
MA165TA
R613
2.2K
-30.4V
R614
SYSTEM CONT.
D601~604
D607~610
R662
10 1/2W
0.01
C609
R609
1.5K
R610
1.5K
0.01
C610
!
R663
10 1/2W
-19.6V
D614
MA165TA
C648
-29.8V
Q605
Q920~921
DTC114ESTP
Q939~941
DTA114ESTP
SYSTEM CONT.
TP9
TEST
TERMINAL
2SD592AQRSTA
REGULATOR
C803
25V1000
0.01
C649
C604
25V1000
C605
25V2200
R901
4.7K
R661
4.7K
25V10
10K
R612
R611
4.7K
Q607
DTC114ESTP
STABILIZER
C908
Q932
4.7V
50V1
R902
D912
10K
C909
0.01
C907
MA4051MTA
Q921
R964
1M
1
4.6V
X901
3
Q919
2
Q919
DTA114ESTP
a
SYSTEM CONT.
b
c
0V
R675 1K
0.1V
11.8V
Q611
0.01
12.4V
0V
D620
R667
100
Q901
11.6V
Q624
!
13.2V
R660
10(1/4)
0.01
11.8V
C647
820
R905
MA4120MTA
R660
R906
22K
11.8V
(EB,GN)
areas
10.9V
1V
Q903
S802
G
11.2V
10K
Q954
10K
11.2V
Q954
DTA114ESTP
SYSTEM CONT.
Q936
11.1V
10K
10K
0.6V
56K
0V
5
5
(OPEN)
11.2V
11.2V
3
3
S801
0.6V
R938
(MOTOR)
R939
4.7K
4.7K
D630
MA165TA
Q625
10K
10K
(EB,GN)areas
4
4
PLY2
2SB621ARSTA---(others)
2SB1030RSTA---(EB,GN)
LEAF SWITCH CIRCUIT
R965
470
0V
10K
R966
11.1V
10K
4.6V
10K
11.2V
10K
11.1V
10K
0.1V
D920
MA165TA
9V
4.6V
R903
10K
R904
10K
Q901
POWER SUPPLY
25V4.7V
!
ISR35200TB
C625 0.01
C626 6.3V2200
D606
!
ISR35200TB
D605
1
-22V
0.1V
2
c
5ms.2V/DIV.
Q939
-5V
10K
10K
4.6V
Q920
4.6V
10K
10K
4.6V
D930
MA165TA
D660
MA165TA
Q936
DTA114ESTP
RELAY DRIVE
27--(EB,GN)areas
14.4V
Q610
5.4V
!
6V
D619
MA4062LTA
R664
100
(EB,GN)areas
3
4
0.1V
Q903
2SC3311AQSTA
SWITCHING
d
--4.2V
0V
Q940
4.6V
4.6V
4.6V
4.6V
4.6V
Q941
4.6V
10K
10K
4.6V
22--others
R615
0.01
C611
R616
Q610,611,624
2.2K
2SD2037EFTA
REGULATOR
IC903
BA6218
EJECT MOTOR
CONTROL
7
6
5
0.1V
7.8V
C906
16V10
1
1
1
1
EJECT MOTOR
EJECT MOTOR
H
CIRCUIT
-1.4V
10K
10K
-1.4V
R676
14.6V
R685
!
(PP,E,EG,GC)
areas
16.2V
9
8
-16.6V
N
2
2
W10
2
3
2
3
M
10K
22
0.1V
(E,EG)
areas
CN10
W11
e
b
+B
-B
LB
CP5
10
9
8
7
6
5
R730
4
4.7K
1
2
3
RFKFSB655EBK
D701
RFKFSB655EAK
R717
330
R718
D702
(REC)
D702
R970
2.2K
S717
D701
S711
( AUTE REC MITE)
(PLAY)
(RESET)
RPS
RPT
M.P
+B
R
L
G
MSNS
-B
TST
KEY
VIN
VOUT
180
R712
R713
820
S712
(MODE)
(COUNTER)
1K
S713
(METER
RANGE)
CP9
CP8
CP7
R716
1.8K
R714
1.2K
10
10
10
S714
(REPEAT)
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
R715
1.5K
S715
(STOP)
(MEMORY)
Vr81 ( R
20K(B)
6.4V
R585
-15V
22K
4.6V
-22V
R701
820
FF)
STOP)
(
(
S701
S702
) (LEVEL) (L)
R76
10K
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
R705
1.8K
PAUSE)
(
S706
(BALANCE)
VR2
100K(G)
0.3V
0.3V
1.3V
1.3V
R707
R706
3.3K
2.2K
(Dbx)
S716
S707
(C)
e
d
b
a
c
6.4V
5
8
+
-
6
IC553(1/2)
3
+
-
4
2
-15V
R708
4.7K
(DOLBY NR)
6.4V
IC553(1/2)
7
D554
1
1.3V
-15V
R704
R702
R703
1.5K
1K
1.2K
REW)
PLAY)
REC)
(
(
(
S705
S704
S703
VR7
20K(B)
R75
10K
(BIAS)
5K(B)
VR303
3.3K
VR320
dn
rec--off--play
(TIMER)
R709
6.8K
R710
12K
(MPX
FILTER)
S708
S709
(B)
IC 552, 553
LEVEL METER AMP
0.8V
R553
R574
MA165TA
22
1.8K
R571
C583
6.3V100
R584
f
g
m
e
22K
R711
M5218L
100K
1.5K
R571
R583
R583
10K
R552 100K
200K
R554
10
0V
Q554
Q553, 554
2SC3311AQSTA
MUTING
0V
200K
0V
3
0V
2
0V
5
0V
6
R582
0V
J
CN15
CP15
6.4V
8
+
-
8.2K
R581
0V
IC552(1/2)
+
4
-15V
R556
82K
8.2K
h
REC LEVEL
CIRCUIT
(REC LEVEL)
VR1-1
VR1-2
50K(A)
50K(A)
3
12
21
3
d
e
IC552(1/2)
(-1V)
1-10.2V
D551
R557
R555
22
82K
Q553
(1v)
-10.2v
7
D552
R558
22
(REC LEVEL
POSITION DET.)
VR1-3
50K(A)
5
4
4
b
MA165TA
MA165TA
5
a
R559
R560
0V
R373
2.7K
2.7K
1
1
27
k
I
r
q
S
b
a
c
C553
Q555
2
3
2
3
c
R569
6.3V100
0V
CN14
CP14
100
D555
MA4051MTA
D557
MA165TA
ELEKTRONIKI
C556
R971
C568 35V10
16V10
K
3.3K
C567 35V10
C554
6.3V100
D558
MA165TA
L
SWITCH
CIRCUIT
1
1
R974
R975 22K
R973
C561 0.01
4.6V
0.01
C555
Q556
0V
S721
2
2
12K
6.8K
R561
1K
(APRS)
C560 0.01
S720
3
3
C559 0.01
(REC CAL.)
0V
R972 4.7K
S723
4
4
S722
(MONITOR)
(CD DIRECT)
j
5
5
R570
100
CN701
CP701
C564
D556
6.3V100
MA4051MTA
R572
R578
R577
21
22
4.4V
1K
330
R575
330
R576
0.1V
20
GND
DISP
VR IN
AVcc
23
0.2V
p
330
330
4.5V
19
24
4.2V
o
L
1
30
20ms.2V/DIV
4V
18
M.P
RPS
FIN
SIGL
25
0V
4V
17
RPT
SIGR
26
0V
D553
C557
FL DRIVE CIRCUIT
FL 551 (RSL0033-F)
FL DISPLAY
282726
----4V
-5.1V
16 15
27
10K
R563
MA165TA
25V4.7
0V
S19
SS
AV
4.6V
ca
b
-2.4V
-16.6V
14
S17
S18
TEST
RESET
29
28
0V
4.6V
4.6V
0V
Q551
470
R562
Q551, 555, 556
2SA1309AQSTA
RESET/MUTING
-11.8V
13
30
2.1V
a
d
S16
OSC1
bcdef
f
e
-10.4V
-10.4V
12
11
S15
OSC2
31
32
2.1V
4.6V
50V1
C558
10K
R564
25
g
-11.8V
10
S14
Vcc
33
-21.8V
ab
6
ed cba
f
rqp
s
2ms. 10V/DIV
5
4
---4V
---0V
-21V
21
23
h
-16.5V
9
S12
G2
34
-21.8V
1
22
h
g
i
-16.6V
-21.4V
7
8
S11
G4
G3
36
35
-21.8V
-21.8V
cde
R565
1M
X551
2
201918
i
-22V
-21.4V
6
S9
S10
G5
37
-21.8V
17
k
j
ljk
-22V
-16.6V
5
S8
G6
38
-21.8V
f
3
24
S13
G1
13
15
14
16
op
l
m
n
n
o
m
-21.4V
-21.4V
-11.4V
4
3
1
2
S8
S6
S7
Vdisp
S4
S3
S1
S2
39
41
40
42
-21.8V
-21.8V
-21.8V
-21.8V
HD404302SA07
MICRO COMPUTER
(FL METER)
12
q
IC551
11
r
10
s
IC551
987
SERWIS ELEKTRONIKI SERWIS ELEKTRONIKI SERWIS ELEKTRONIKI
SERWIS ELEKTRONIKI
A
Magnetofon kasetowy Technics RS-B965
D
REC AMP CIRCUIT
1
OVERALL FREQUEYCY
RESPONSE ADJ. (R ch)
OVERALL FREQUEYCY
RESPONSE ADJ. (L ch)
VR301
10K(B)
VR302
10K(B)
D304
R309
MA165TA
R85
10K(B)
2.2K
Q19
R999
R953
R952
0.5V
(-0.3V)
560...other
2.7K
39K
100K
dbx TIMING
d
c
b
22K--(PP)
68K--others
R99
22K
R100
22K
2.7K
R308
3.3K
R961
R962
390...(PP)
10K
R959
MA165TA
MA165TA
10K
R958
33K
R957
ADJ.
g
a
h
E
g
f
560
D909
D652
R955
R954
R956
MA165TA
2.7K
MA165TA
3.9K
10K
MA165TA
MA165TA
D910
D908
D303
D911
ac
d
e
b
1.5K
R318
+B
15V
dbx TIMING
ADJ.
TEST POINT
CN2
1`
2`
3`
4`
5`
6`
7`
8`
9`
OVERALL
GAIN ADJ. (R ch)
OVERALL
GAIN ADJ. (L ch)
MPX
B/C
OUT
-B
1
2
3
TIM
4
L
5
R
6
7
8
X
9
-15V
TP1
R831 1K
VR501 5K(B)
R856
VR6
10K(B)
R88
2.2K
0V
0V
-B
TP2
VR5
R87
(-0.3V)
0.5V
CN11
Q20
Q19, 20
2SD1450RSTA
MUTING
10`
11`
12`
13`
14`
15`
16`
17`
18`
19`
20`
21`
14.2V
CP11
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
C75
R165
SWITCHING (REC:OFF)
0V
(14.6V)
C76
50V10
IC10
M5218L
REC AMP
50V10
100K
Q951
DTA114ESTP
15V
(-0.3V)
100K
R166
R319
R145
R97
15V
Q951
C42
1K
0V
3.9K
1K
50V10
-15V
IC301
IC10
(1/2)
15V
3
8
+
0V
-
2
R89
330K
C45
C41
220P
50V 10
R91
27K
C47
R93
50V0.33
6.8K
C49
R95
6800P
15K
(22K)
R105
ELEKTRONIKI
L5
470)
R101
R103
47(82)
C51
0.018
C53
4700P
IC10(1/2)
5
0V
+
-
0V
4
6
-15V
R90 330K
C46
220P
3.9K
R146
R92
27K
C48
R94
50V0.33
6.8K
R96
C50
15K
6800P
(22K)
R106
Vcc
V
REF
C329
50V10
15V
4.7K
R117
(0V)
10.1V
1V
D5
MA165TA
100
R119
100
R121
D7
MA165TA
(2700P)
-0.9V
1K
4.7K
R123
1.2K
R107
(0.022)(1K)
C55
8200P
0V
-0.8V -0.8V
Q21
4.7K
R118
7 0.1V
(0V)
1V
D6
MA165TA
100
R120
100
R122
D8
MA165TA
(2700P)
-0.9V
1K
4.7K
R124
18
REGULATOR
12
0.4V
(0.2V)
0V
Baza Porad Serwi
Notes:
1. No mark---For (E, EB, EG, GC, GN) areas.
2. ( ) ----For (pp) area.
HX - PRO ADJ. (Rch) TEST POINT
(470P)
R316
27K
(33K)
15V
0.8V
17
4.3V
0.9V
R315
27K
(33K)
1.5K
R131
9.6V
Q19
2SC3311AQSTA
100
R125
100
R127
-0.3V
Q31
-9.9V
1.5K
R129
(3900P)(2.2K)
Q23
1.5K
R132
9.6V
Q30
0.4V
(0.2V)
100
R126
100
R128
-0.3V
Q32
-9.9V
1.5K
R130
C322
C324
0.01
4.3V
16
ABC
DET
ABS
DET
3
4.3V
C323
0.01
C321
D9
MA165TA
9.6V
Q29, 35
REC AMP
C43
100P
-9.9V
D11
MA165TA
C57
0.027
R109
3.3K(10K)
R111
0V
D10
MA165TA
9.6V
C44
100P
-9.9V
D12
MA165TA
0,022
15
PEAK
DET
PEAK
0.022
5.6K
DET
4
(0.018)
10.2V
(0.3V)
(0.3V)
Q25
10.2V
Q34
(0.3V)
(0.3V)
-10.6V
(1,3V)
0.5V
0.5V
(1.4V)
R133
0V
0V
R135
(0.022)
0V
0V
R136
(120K)
160K
R314
680P
C326
C320
0.033
TP16
(0.018)
(14.2V)
(2.6V)
(0.8V)
14
5
(0.9V)
C319
0.033
680P
C325
2SD1450RSTA
1K
13.3V
13
0V
6
13.3V
0V
(2.6V)
TP15
R313
150K
(470P)
(120K)
Q37
SWITCHING
(REC:OFF)
12
7
0V
VCA
VCA
0V
(14.3V)
Q33
Q31, 33
2SA1309AQSTA
REC AMP
C65
25V22
0V
(-0.3V)
(0.3)
0.5V
Q37
R151
Q35
-10.6V
1K
-15V
R159
C59
-0.1V -0.8V
100
0.018
For (PP)
area
2.2K
R115
R113
10K (8,2K)
C61
0.068
(0.047)(2.7K)
0V
Q27
Q25~28
2SC3311AQSTA
1K
R134
REC EQ AMP
Q30, 36
2SC3311AQSTA
REC AMP
Q38
2SD1450RSTA
SWICHING (REC:OFF)
(0.3V)
C66
25V22
0V
R152 22K
0.5V
(-0.3V)
Q38
Q36
Q32, 34
2SA1309AQSTA
1K
REC AMP
22K
D302
11
8
(14.3V)
MA165TA
GND
(14.3V)
0V
R161
C63
0V
100
0.033
1.6V
10
BIAS
VEE
9
(0.018)
R307
4.7K
15V
-15V
(4.5V)
15.5V
-15.6
R98
Q6
C621
C622
Q6
C
1
0
(6
1K
16V220
16V220
V
SERWIS ELEKTRON
Q303
(15.6V)
L6
C52
15V
(5V)
R102
0.018
18V
D615
D616
-18.4V
For (PP) area
R306 56K
R305 10
C330
470
47(82)
R104
C54
4700P
0V
!
0.01
C606
MA4150MTA
2SA1309AQSTA
REC EQ AMP
MA4150MTA
0.01
C607
!
HX - PRO ADJ. (Lch)
TEST POINT
a
b
c
UPC1297CA
DOLBY HX PRO
d
e
f
g
h
D301
MA165TA
Q301
(0.1V)
(0.1V)
R304 10
(4.5V)
R310
(1.8K)
2.2K
0.01
R108
(1K)
C56
(0.022)
-0.8V
Q22
R605
101/2W
19.2V
Q603
19.2V
R607
560
Q21~24
R608
560
-19.6V
Q604
R606
10V 1/2W
IC 301
L304
For (PP)
area
Q301, 302
2SC3311AQSTA
BIAS OSC
(1.3V)
(0.6V)
Q302
(0.6V)
For (PP) area
R391 39(1/2)
!
(2.2K)
1.2K
8200P
(3900P)
0V
-0.8V
Q24
18.5V
R657
3.3K
-19.6V
-19.6V
Q602
2SBB1357EFTA
REGULATOR
C305
2200P
C306
6800P
C304
2200P
(0.022)
C58
0.027
R110
3.3K (10K)
56K
R112
Q601
2SD2037EFTA
REGULATOT
47K
R658
D612
MA165TA
10K
R603
2SD592AQRSTA
BIAS OSC CONT.
C302
25V4.7
18K
R303
C303
3900P
18K
R302
For (EB, GN) areas
R324 39(1/2)
!
!
120--(E,EG,GC) areas.
100
R160
R114
C60
0.018
0V
-0.8V
Q26
4,7K
R601
Q603, 622
2SA1309AQSTA
STABILIZER
0.6V
Q622
0.6V
Q604
2SC3311AQSTA
STABILIZER
4.7K
R604
RECORD HEAD
ERASE
Q303
L301
6
5
4
For (EB, GND) areas
R323
39--(EB,GN) areas.
47--(PP)area
C62
0.068
(0.047)
10K(8,2K)
(2.7K)
2.2K
R116
0V
Q28
R602
4.7K
Lch
Rch
HEAD
AC BIAS TRAP
ADJ. (Rch)
h
g
a
b
c
d
e
f
1
2
3
!
R325 39(1/2)
100
R162
C64
0.033
(0.018)
-0.8V
C301
CP12
0.015
CP13
1
2
3
4
5
6
7
8
9
10
(8200P)
1
2
3
4
5
6
7
8
9
10
AC BIAS TRAP
ADJ. (Rch)
TEST POINT
CP16
6
5
4
3
2
1
CN12
1
2
3
4
5
6
7
8
9
10
R301
ERASE
CURRENT
ADJ. TEST POINT
For (PP) area
R390
1.8K
Q623
2SD592AQRSTA
POWER SUPPLY
14.4V
Q623
14.2V
Q304
0V
(14.2V)
CN13
1
-15V
2
3
4
5
VR304 10K(B)
6
7
19.2V
8
9
ERASE CURRENT
10
19.6V
Q304
2SB1030RSTA
BIAS ON/OFF
GND
TP8
1.0
TP6
TP5
15V
-15V
14.2V
(13.4V)
R310
B
L4
C68
15V
0.01
ADJ.
TP7
+B
-B
0.01
C646
47K
R321
R659
1K
C322
AC BIAS TRAP
ADJ. (Lch)
TEST POINT
AC BIAS
TRAP
L3
ADJ. (Lch)
C67
100P--(PP)
120P--others
HX-PRO ADJ. (Lch)
L303
1
2
3
HX-PRO ADJ.
(Rch)
L302
3
2
1
33 1/2W
!
a
b
c
14.2V
120P
C317
TP11
ELEKTRONIKI
6
4
4
6
TP12
C315
C316
C318
120P
47P--(PP)
560P--others
Q934, 942
DTA114ESTP
SYSTEM CONT.
d
g
c
b
11.2V
11.2V
10K
Q942
0V
b
a
10K
10K
C691 0.01
Q953
Q908
DTA114ESTP
SWITCHING
Q908
10K
15V
10K
R916
10K
D905
4.7K
R914
Q912, 915
DTA114ESTP
SOLENOID DRIVE
b
a
d
c
6.8K
R951
c
D907
e
d
10
10
S976
(ATS/METAL)
D913 MA165TA
10K
11.2V
Q946
4.2V
D655
MA165TA
TAPE END DET.
15V
R912
-21.8V
IC904 (1/2)
1
13.3V
(12.9V)
D905~907
MA165TA
1.8K
R950
1.5K
R960
D906
7
9
9
7
2
S973
S975
(ATS/Cr0 )
(F.REC INH)
2SC3311AQSTA
SYSTEM CONT.
R981
4.7K
R695
C936
50V10
11.2V
10K
11.2V
10K
-5.3V
R998
10K
4.6V
R670
22K
D626
MA165TA
IC904, 905
M5218L
Q907
S
-15V
G
D
2.2M
0V
0V
3
+
R918
2
-
0.18
56K
C813
4.6V
14,6V
2
3
2
3
D971 15S133
S971
S972
(HALF)
(MODE)
IC971, 972
GP2S06BC
PHOTO COUPLER
Q946
Q928
10K
-15V
Q934
RY1
D919
0V
-15V
Q917
0V
1
1
(TRIGGER)
SOLONOID
R980 12K
(5.6V)
7.5V
47K
47K
D914
12K
R699
0.01
C935
-15V
(0.1V)
4.6V
10K
R967
Q929~931,933,9
DTC114ESTP
SYSTEM CONT.
Q906,907
2SK381BCDTA
TAPE END DET.
R920
1M
15V
IC904(1/2)
8
+
7
0V
-
4
-15V
-B
R947
14.5V
R948
14.5V
10K
Q916
8
8
IC971
D972 15S133
(BREAK)
SOLENOID
Q927
5
6
22K
820
10K
-14.9V
10K
1.6V
0.9V
R971A
10K
Q933
4.6V
0V
0V
1
2
270
-14.8
4.6V
4.6V
D91
D917
R979
0.1V
15V
SY
47
47
R924
R977
R922
Q9
D
6
12K
9
D
5
1
12K
47K
820
E
MECHANISM CIRCUIT
C
Q935
2SA1309AQSTA
SYSTEM CONT.
Q927, 928
6
7
D918
D914~-919
MA165TA
e
f
Q924
-14.6V
15V
47K
14.8V
47K
-14.6V
Q923
Q926
4.6V
47K
47K
(0V)
4.6V
R919
(4.6V)
-14.9V
4.6V
--13V
---0V
-13V
1M
(0V)
-15V
(4.6V)
0V
R891
C690
(4.6V)
47K
50V2.2
4.6V
0V
R860
4.5V
Q935
47K
50ms.10V/DIV.
K
IC905(1/2)
C930
20V 4.7
-15V
-22V
10K
10K
4.6V
6
5
6
5
4.6V
3
44
1.6V
18K
R972A
1.6V
0.9V
14.6V
-B
0V
IC972
5
6
+
-
Q914
15V
8
4
-15V
270
R973A
7
R945
14.5V
R946
14.5V
Q913
4.6V
1
2
0.1V
Q925
-14.6V
47K
-15V
47K
14.8V
14.8V
10K
4.6V
10K
R989 10K
Q929
R911
2.2M
Q906
D
G
0V
-15V
S
0V
R917
56K
0V
0.18
C914
Q912
4.6V
22K
10K
10K
0V
820
10K
0V
10K
4
11
11
4
4.6V
3
1.6V
18K
R974A
4.6V
0V
4.6V
0V
15
R944
18
R943
Q913,916
DTC114ESTP
CN3
SOLENOID DRIVE
J971
4.6V
IC905(1/2)
3
2
14.6V
Q911
15V
47K
D955
MA165TA
+
-
14.5V
15V
14.8V
47K
Q930
2SD592AQRSTA
POWER SUPPLY
11.2V
4.7K
R913
R915
1
0V
22K
R942
820
R941
D650
MA165TA
Q910
Q922~926
DTA144ESTP
SYSTEM CONT.
Q922
0V
14.8V
4.6V
Q612,613
10K
0V
4.6V
47K
4.6V
47K
4.6V
10K
4.6V
10K
4.6V
Q931
Q620,621--(EB,GN)areas
14.6V
D625
MA4051MTA
D904
MA165TA
0V
Q905
Q909
0V
(EB,GN)areas
R651
4.7K
4.7K
R650
C644
Q905, 909
DTC114ESTP
SOLENOID HOLD ON/OFF
D624
MA165TA
10K
10K
10K
10K
50V1
R626
D623
2.6V
R654
R909
2.6V
R940
10K
(PP,E,EG,GC)
areas
Q904
dc b
R986 3.3K
2SC3311AQSTA
STABILIZER
R625
!
12(1/2)
1K
0.01
C614
MA4091MTA
1.8V
2.2K
R652
3.3K
(EB,GN)areas
4,7K
1.4V
Q911,914,917
2SB1030RSTA
SOLENOID DRIVE
a
R983 4.7K
R949 10K
R982 4.7K
Q613
5.2V
5.7V
8.4V
Q620
5.7V
5.2V
R908
10K
R907
10K
0V
REEL MOTOR CONTROL
N
To CAPSTANMOTOR
(D.D) CIRCUIT ICN201A
a
R988 22K
c
b
R985 10K
R984 22K
R967 10K
4.6V
R622
!
3.3(1/2)
C613
D622
MA4082M
R666 100
IC902
BA6218
Q904,910
2SC3311AQSTA
SWITCHING
IC901
e
d
R935 10K
Q902
DTC114ESTP
SWITCHING
11V
8.2V
0.01
11.2V
1
3.2V
MB88511-250N
MICRO COMPUTER (MECHANISM)
4.2V
22
DIRECT
4.6V
23
C
4.6V
B
24
4.6V
25
MPX
(0V) 4.6V
3.9V
4.3V
0.9V
1.4V
4.6V
4.6V
0V
4.6V
4.8V
0V
4.6V
0.1V
T/S
26
27
HALF
28
MODE
ARM
29
EE
AV
30
ADR
31
32
AVCC
33
KEY1
34
KEY2
35
ATS
INH
36
SYNC
37
DISP
38
MSP
39
40
M.PULSE
0V
REMOCOM
41
42
Vcc
Q612
7.8V
7.8V
1.8V
Q621
8.2V
D621
MA4075MTA
R623 1K
(EB,GN)
areas.
(EB,GN)
2.2K
R653
areas.
3.3K
R655
ELEKTRONIKI
IC902
2
4
3
5
0V
4
4
W201
3
b
2
a
11.6V
1
F
REEL MOTOR CIRCUIT
21
SS
V
20
PDF
OSCF
19
18
RES
17
X
16
Ex
15
OSC
14
RMF
13
RMR
12
REELPULS
SOL2C
11
10
SOL2
9
SOL1
8
CAPM
EJECT.R
7
6
EJECT.F
5
PLAY
4
REC
3
BOS
2
RMT
DMT
1
Q625---(EB,GN)areas
DTC114ESTP
STABILIZER
R617
1
R619
390
1.5V
Q902
78
6
5.2V
4.4V
N
C905
16V10
1
3
1
3
M
REEL
MOTOR
4.2V
4.7V
4.7V
1.7V
2.2V
4.6V
3.2V
0V
4.4V
2.6V
4.6V
4.6V
0.6V
0.1V
0.1V
0.5V(0.6V)
3.3V(0.4V)
14,2V(0.7V)
0.6V(0.1V)
0V
10K
10K
9
0.1V
CN4
2
W4
2
10K
R902
Q611
14.4V
0.01
C612
12.4V
0V
(0.1V)
R667
100
(EB,GN) areas.
Q901
D912
11.6V
MA4051MTA
11.8V
D620
Q932
0V
4.7V
50V1
C909
0.01
C907
Q921
R964
1M
1
X901
3
Q919
2
Q919
DTA114ESTP
a
SYSTEM CONT.
b
c
0V
R675 1K
0.1V
Q624
!
13.2V
R660
10(1/4)
0.01
11.8V
C647
820
R905
MA4120MTA
R906
22K
11.8V
(EB,GN)
areas
10.9V
1V
Q903
G
11.2V
10K
Q954
10K
11.2V
Q954
DTA114ESTP
SYSTEM CONT.
Q936
11.1V
10K
10K
11.2V
MA165TA
11.2V
Q625
0.6V
(EB,GN)areas
0.6V
R660
56K
4.7K
R939
0V
4.7K
R938
5
3
4
3
5
4
S801
S802
(OPEN)
(MOTOR)
LEAF SWITCH CIR
11.1V
4.6V
0.1V
PLY2
D630
10K
9V
10K
R903
10K
R904
10K
2SB621ARST
2SB1030RSTA
POWER S
11.2V
D920
4.6V
R966
10K
10K
10K
MA165TA
10K
4
1
10K
Q90
A
C
SERWIS ELEKTRONI
D
Baza Porad Serwiso
I
OPERATION
S
R965
470
1.1V
C626 6.3V2200
C908
25V4.7V
!
D605
ISR35200TB
C625 0.01
D606
!
ISR35200TB
1
5.4V
-22V
(EB,GN)areas
2
0.1V
2SC3311AQSTA
c
5ms.2V/DIV.
Q939
-5V
10K
10K
4.6V
4.6V
4.6V
D930
MA165TA
D660
MA165TA
Q936
DTA114ESTP
RELAY DRIVE
14.4V
Q610
6V
D619
MA4062LTA
R664
100
3
4
0.1V
Q903
SWITCHING
--4.2V
0V
4.6V
4.6V
Q920
4.6V
10K
10K
4.6V
Q941
4.6V
10K
10K
27--(EB,GN)areas
22--others
R615
!
0.01
C611
R616
Q610,611,624
2.2K
2SD2037EFTA
REGULATOR
IC903
BA6218
EJECT MOTOR
CONTROL
7
6
5
7.8V
1
1
1
1
EJECT MOTOR
EJECT MOTOR
H
d
Q940
-1.4V
10K
10K
4.6V
-1.4V
4.6V
!
(PP,E,EG,GC)
areas
16.2V
8
0.1V
C906
16V10
N
2
2
M
CIRCUIT
R676
14.6V
R685
22
9
0.1V
-16.6V
2
W11
2
W10
3
3
e
10K
LB
(E,EG)
areas
CN10
CN5
10
6.4V
-15V
R937
4.6V
-22V
Q608
(EB,GN)
areas
C641
c642
25v1000
14.6V
MA165TA
D902
MA165TA
C643
68K
25V1000
D901
50V220
9
8
7
6
5
4
1
2
3
CN9
10
9
8
7
6
ELEKTRONIKI
5
4
3
2
1
CN8
10
9
8
7
6
5
4
3
2
1
CN7
10
9
8
7
6
5
4
3
2
1
CN604
R645
0.15
CN603
D602
!
D601
CN609
C601
6800P
D604
D603
!
!
(EB,GN)
areas
D607
D609
!
!
C602
R647
6800P
0.15
(EB,GN)
areas
D608
D610
!
!
CN607
!
D632
1SR35200TB
CN608
CN610
R646
0.15
CN606
CN605
Q605
2SC3311AQSTA
STABILIZER
!
T601
CN601
For(GC)
area
CN613
!
Jk6
(120V, 60 Hz--(PP)
220V, 50/60Hz--(E,EG)
240V, 50/60Hz--(EB,GN)
110/127/220/240V,
50/60Hz--(GC))
For others
AC IN
220V
CN612
127V
CN611
!
(VOLTAGE
CN602
110V
S601
240V
S601
ADJ.)
Q932
2SC3311AQSTA
RESET
a
b
c
c
d
a
e
b
h
g
D631
MA4075MTA
cba
L7
(E,EG)
area
(EB,GN)
4.2V
10K
Q607
-22.6V
D615
R665
100
TP10
b
a
a
b
Q606, 609
2SB621ARSTA
REGULATOR
Q608
16.2V
D617
MA4330MTA
area
-16.6V
-19.6V
Q609
R963
22K
0.1V
(0V)
10K
-30.4V
-30.4V
MA4220MTA
!
27 1/2W
19.2
16.8V
-17.4V
D613
MA165TA
R613
2.2K
R614
f
e
b
c
d
a
D903
MA165TA
4.2V
c
b
a
+B
-B
-22V
Q608
-30V
0.01
C608
(EB,GN)
areas.
D601~604
D607~610
ISR35200TB
R662
!
10 1/2W
0.01
C609
R609
1.5K
R610
1.5K
C610
!
R663
10 1/2W
-19.6V
D614
MA165TA
-29.8V
Q605
Q920~921
DTC114ESTP
SYSTEM CONT.
Q939~941
DTA114ESTP
SYSTEM CONT.
TP9
TEST
TERMINAL
2SD592AQRSTA
REGULATOR
C803
25V1000
0.01
C649
0.01
C604
25V1000
C605
25V2200
R901
4.7K
R661
4.7K
C648
25V10
10K
R612
R611
4.7K
Q607
DTC114ESTP
STABILIZER
CP5
10
9
8
7
6
5
R730
4
4.7K
1
2
3
RFKFSB655EBK
D701
RFKFSB655EAK
R717
330
R718
D702
(REC)
D702
S717
180
D701
(PLAY)
R970
2.2K
( AUTE REC MITE)
RPS
RPT
M.P
+B
R
L
G
M SNS
-B
TST
KEY
VIN
VOUT
S711
(RESET)
(COUNTER)
R712
820
(MODE)
S712
R713
1K
S713
(METER
R716
1.8K
RANGE)
CP9
CP8
CP7
R714
1.2K
10
10
8
7
10
9
5
4
1
S714
(REPEAT)
9
8
7
6
5
4
3
2
1
9
6
5
4
3
2
1
8
7
6
3
2
R715
1.5K
S715
(STOP)
(MEMORY)
Vr81 ( R
20K(B)
6.4V
22K
R585
4.6V
-22V
-15V
R701
820
FF)
STOP)
(
(
S701
S702
) (LEVEL) (L)
R76
10K
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
S710
(TIMER)
R707
R704
R702
1K
REW)
(
S703
R75
10K
R705
R703
1.2K
PLAY)
(
S704
20K(B)
dn
VR7
1.5K
REC)
(
S705
(BIAS)
VR303
VR320
1.8K
5K(B)
3.3K
R706
2.2K
PAUSE)
(Dbx)
(
S716
S706
(BALANCE)
VR2
100K(G)
6.4V
5
0.3V
0.3V
6
IC553(1/2)
1.3V
3
1.3V
2
+
-
+
-
R708
3.3K
4.7K
S707
(C)
(DOLBY NR)
e
d
b
a
c
6.4V
IC553(1/2)
8
D554
1
4
-15V
-15V
R709
6.8K
(MPX
FILTER)
S708
S709
(B)
LEVEL METER AMP
7
0.8V
R574
MA165TA
22
C583
6.3V100
1.3V
f
m
rec--off--play
R710
12K
IC 552, 553
R553
1.8K
R571
R584
g
e
22K
R711
M5218L
100K
1.5K
R571
R583
R583
10K
R552 100K
200K
R554
10
0V
Q554
Q553, 554
2SC3311AQSTA
MUTING
0V
200K
0V
3
0V
2
0V
5
0V
6
R582
0V
J
CN15
CP15
6.4V
8
+
-
8.2K
R581
0V
IC552(1/2)
+
4
-15V
R556
82K
8.2K
h
E
REC LEVEL
CIRCUIT
(REC LEVEL)
VR1-1
VR1-2
50K(A)
50K(A)
3
12
21
3
d
e
IC552(1/2)
(-1V)
1-10.2V
D551
R557
R555
22
82K
Q553
(1v)
-10.2v
7
D552
R558
22
4
4
b
MA165TA
MA165TA
(REC LEVEL
POSITION DET.)
VR1-3
50K(A)
5
1
5
1
27
R373
a
c
k
I
r
q
S
b
a
c
2.7K
R559
C553
6.3V100
2.7K
R560
Q555
0V
3
3
0V
2
CN14
CP14
2
R569
100
D555
MA4051MTA
D557
MA165TA
C556
R971
C568 35V10
16V10
K
3.3K
C567 35V10
C554
6.3V100
D558
MA165TA
L
SWITCH
CIRCUIT
1
1
12K
R974
R975 22K
R973
C561 0.01
R561
4.6V
0.01
C555
Q556
0V
2
S721
2
6.8K
C560 0.01
1K
S720
(APRS)
3
3
C559 0.01
(REC CAL.)
0V
R972 4.7K
S723
4
4
S722
(MONITOR)
(CD DIRECT)
5
CN701
CP701
5
330
330
R575
R578
330
330
R576
R577
0.1V
21
20
GND
DISP
VR IN
AVcc
22
23
4.4V
0.2V
C564
6.3V100
1K
R572
R570
100
D556
MA4051MTA
p
j
FL DRIVE CIRCUIT
L
1
30
20ms.2V/DIV
4V
4V
4.5V
17
18
19
RPT
M.P
RPS
FIN
SIGL
SIGR
25
24
26
0V
0V
4.2V
R563
D553
MA165TA
C557
o
FL 551 (RSL0033-F)
----4V
0V
ca
b
-2.4V
-5.1V
-16.6V
14
16 15
S17
S18
S19
SS
TEST
RESET
AV
29
28
27
0V
4.6V
4.6V
10K
4.6V
Q551
470
R562
25V4.7
Q551, 555, 556
2SA1309AQSTA
RESET/MUTING
0V
-11.8V
13
30
2.1V
d
S16
OSC1
FL DISPLAY
282726
a
bcdef
e
-10.4V
-10.4V
12
11
S15
OSC2
31
32
2.1V
4.6V
50V1
C558
10K
R564
f
S14
Vcc
24
25
g
h
-16.5V
-11.8V
10
9
S13
G1
33
34
-21.8V
-21.8V
ab
23
22
i
-21.4V
8
S12
G2
35
-21.8V
cde
1
g
S11
G3
R565
X551
21
h
j
-16.6V
7
36
-21.8V
1M
19
20
i
j
V
-22
k
-21.4V
6
S9
S10
G5
G4
37
-21.8V
3
2
SERWIS ELEKTRONIKI
ELEKTRONIKI
F
6
18
17
13
15
14
11
16
12
987
10
5
4
l
6V
.
16
5
38
21.8V
f
k
l
m
m
-22V
-11.4V
4
3
S8
Vdisp
S1
G6
39
40
-21.8V
-21.8V
s
r
op
q
n
n
o
-21.4V
-21.4V
1
2
S8
S6
S7
IC551
S4
S3
S2
41
42
-21.8V
-21.8V
IC551
HD404302SA07
MICRO COMPUTER
(FL METER)
ed cba
f
rqp
s
2ms. 10V/DIV
---4V
---0V
-21V
1
Baza Porad Serwisowych
Magnetofon kasetowy Technics RS-B965
N
M
FG
CIRCUIT
FG
2
IC202 (1/3)
J201A
1
1
R212A
1.5K
W201
1
2
CAPSTAN MOTOR (D.D) CIRCUIT
100mV
ELEMENTS
HW-101A-FT
R206A 2.2K
Connect the IC20I 2 pin terminal
to the ground with a lead wire.
0.8V
CF201
C216
5000P
3
2
IC202 (1/3)
Ic202
SN74LS04MEL
INVERTER
R216A 2.2K
R213A
HALL
1.5K
1us.
13
4
IC202 (1/3)
30ms.
3
3
3
14
2.2K
R208A
2
HU
1
4
2
HV
1
4
2
1
HW
4
C204 16V10
5V
2
5V
D1
12
3
7
5V
5.1V
0.01
C212
5.1V
4V
0.01
C213
4V
2.9V
0.01
C214
2.9V
11.4V
2.2V
2.2V
C215
4700P
2V
1.4V
8.2K
R214A
4
S
5
Q1
CPI
6
Q1
R
1
IC203 (1/2)
SN74LS74AMEL
FLIP-FLOP
22
23
24
25
26
27
2
7
6
3
4
5
12
13
12
11
IC203
IC201
5V
D2
CP2
7
HALL AMP
+
-
+
-
+
-
-
10
S
Q2
Q2
R
14
13
IC203 (1/2)
Bias
FG AMP
+
OSC
9
8
IC201
HA13440MPEL
MOTOR DRIVE
11.4V
21
MATRIX
OTSD
DIR
ZERO
CROSS
MOSE
SELECT
8
11.6V
R215A
R207A
1.0K
(5V)
Q201
100
5V
5.6V
D201
MA3056MTW
DISCR1
1024CNT
C219
C. CONT
CONT. AMP
BUFFER AMP
11
0.1
Q201
2SD601RTW
REGULATOR
U
-
+
-
+
6V
R201A
27K
V
W
C. LIM
+
-
ERROR AMP
10
6V
11.6V
REF.
Vcc
2
C206
0.1
C202 0.1
C201
0.015
20
18
17
16
14
15
28
19
1
9
R202A
11.6V
11.6V
11.6V
11.6V
11.6V
68K
R209A
N
C211 25V10
C209
C210
R211A 4.7
R210A
5V
400mV
R203A 1.5
4.7
25V10
25V10
4.7
50mV
N
N
1.5ms
11.6V
R204A 1.5
FG out
R205A 1.5
C205 0.1
A4A3
1.5ms.
A2
C217
A1
0.1
A6
CN201A
3
b
TO F
2
REEL
0.1
C216
C203
16V10
A5
MOTOR
a
CIRCUIT
1
(W201)
SERWIS ELEKTRONIKI
A
Baza Porad Serwisowych Baza Porad Serwisowych
BC
BLOCK DIAGRAM
PLAYBACK
HEAD
(LCH)
1 1
Magnetofon kasetowy Technics RS-B965
M5219L
(CrOz)
19(10)
L303
(12)
VCA
COMPA-
RISON
(17)
2
Q5,7
PRE
EM[HASIS
(6)
23(3)
26
+
-
+
(9)20
RMS
FILTER
7
Q1, Q3
M5238L
IC13
Q945
MS selector
A
dbx AMP
IC501
AN6294NK
24
(4) 25
(5)
VR501
(dbx timing adj.)
13
-
-
+
+
16
SELECTOR CIRCUIT
(2)27
21
(8)
M5218L
IC10
REC. AMP
AUTO TAPE
(CrOz)
Q21~28
ATS
S973
+
-
+
-
+B
ELEKTRONIKI
PROTEC
POWER
1
VR301(VR302)
Overall
frequency
response
adj.
BIAS OSC
Q301~304
VR3 (VR4)
P.B goin adj.
-B
Q29,Q31,Q33,Q35
ATS
(Metal)
S976
3
(40)
(38)
27
(2)
SIGNAL SELECTOR
2
10
9
VR5(VR6)
Overall gain adg.
Q19(Q20)
VR304
Erase current adg.
5
-
+
MN4066B
6(37)
25
(4)
+
(8)
IC11
6
42
+B
-
+
-
21
(36)7
MOA
MODE
CTRL
1
PRE
EMPHASIS
24
(5)
-
(9)
16
20
RMS
FILTER
13
1
12
11
8
26
(3)
-
+
2
23
(6)
-
+
(10)19
11(32)
(31)12
HLS
22
-B
(7)
-
+
LEVEL
SENSOR
(11)
18
RMS
PRE
EMPHASIS
9
(34)
21
(22)
20
(23)
Q933,935
Rec
mute drive
Q37,951,953
Muting
drive
BA6218
IC903
MOTOR DRIVE
M
EJECT
MOTOR
14
LLS
LLS
+B
28
19(24)
(12)
Q401,403
REC
HEAD
ERASE
HEAD
+B
28
SENSOR
-B
UPC1297CA
IC301
DOLBY HX PRO
3(16)
10
x
IC 1,2
P.B. EQUALIZER AMP
Tape selector
+B
-B
22
(7)
14
+
LEVEL
(12)17(11)
18
RMS
PRE
EMPHASIS
8(11)
ABSO
DET
PEAK
DET
L301
CX20187
IC451
DOLBY B/C NR
(34)9
(24)19
(23)20
dbx AMP
Ic502
AN6294NK
17
Swiching
(MPX/ON)
(32)11
MODE
HLS
CTRL
(31)12
CX2087
IC401
DOLBY B/C NR
+B
6
9
7
2,5,8
(36)
MOA
1
MN4066B
IC7
SIGNAL SFICTOR
13
1
2
M5218L
LC5
CLASS AA AMP
Vr701
(HEAD PHONES LEVEL)
5
12
IC9
Q921,940
941
M
FG
Quartz
lock
control
IC202
SN74LS74AMEL
3
6
8
11
12(13)
11(1)
6(5)
8(4)
MPX
drive
OSC
drive
15
OSC
HA13440MPEL
IC201
MOTOR DIRECT DRIVE
16
17
18
3
+
4
-
+
cross
-
Regulator
12
13
IC203
MPX
Zero
Mode
select
25
8
Q201
M5238L
IC3
Buffer
amp.
Q13(Q14)
(REC LEVEL)
ELEKTRONIKI
Q926
M5218L Q15~18
920,939
IC4
Rec calibration
level/bias adj.
Q922,931
Vcc
Matrix/
C Cont
21
19
OSCF
+B
26
T/S
22
+
HU
23
-
24
+
25
-
HV
26
+
27
HW
-
VR1-1
Rch
Swiching
+B
ELEMENTS
HALL
RLY2
VR2 (REC BALANCE)
Rch
CAMP
8
Q919,936
Relay
drive
MB88511-224N
IC901
SOL1
9
A
39
MSP
MICROCOMPUTER (MECHANICAL)
Q901
625
DMT
SOL2
1
10
RLY1
D925
D924
Q912~914
Broke
solenoid
drive
Q915~917
Broke
solenoid
drive
Q11
(Q12)
4
9
10
MN4066B
SIGNAL SELECTOR
23
C
PLAY
+B
(2)10
(3) 9
Q923~925
Q927~930
5
D701
CAPSTAN
MOTOR
SN74LSO4MEL
MPX
7
6
(37)
3
(40)
5
(38)
42
2
Dolby NR drive
24
B
2
RMT
3
BOS
EJCT.F
6
EJCT.R
REC
4
7
D702
+B
3
1
M5218L
IC701
CLASS AA AMP
D923
Q934,
Q942,946
Direct/relay
drive
22
DIRECT
VSS
21
B
SOLENOID
(BREAK)
SOLENOID
(TRIGGER)
Q9
(Q10)
LINE OUT
LINE IN
(L CH)
CD IN
(L CH)
AVCC
32
+B
MOTOR DRIVE
REEL
MOTOR
(LCH)
S702~710
KEY
SWITCH
KEY 1
BA6216
IC902
M
HEAD PHONES
+B
38
DISP
SOL2C
Switching
7
9
33
40
M.PULSE
Q905,Q613,620
6
1
3
2,5,8
S711~715,720~723
KEY
SWITCH
34
KEY2
RMF
1411
Q954, 555
Muting
drive
Q907~911
B
12
REEL
PULSE
RMR
13
VR1-3
(REC
LEVEL
POSITION
DET.)
M5218L
IC904
27
HALF
X
17
M5218L, Q553(554)
IC552
Level meter
amp.
M5218L
IC553 1/2
Buffer
amp.
+B
Take-up
reel pulse
drive
29
28
ARM
MODE
EX
16
X901
23
S972
(HALF)
POF
20
VR IN
DISP
S971
(MODE)
INH
RES
25
(26)
SIGL(R)
MP
20
S717
(ARM)
36
18
FL551
FL DISPLAY
+B
1~3,
5~16
32
Vcc
FIN
19
24
+B
GP2S06BC
IC971
ELEKTRONIKI
PHOTO
COUPLER
S1~S19
HD404302SA07
MICROCOMPUTER(FL METER)
RPT
IC551
RPS
18
17
39~42
AVSS
27
33
GP2S06BC
IC912
PHOTO
COUPLER
-B
+B
S975
(F.REC INH)
-B
Q932
Reset
+B
drive
-B
+B
+B
Swiching
Q607
-B
-B
Regulator
Q605,606
38
G1~G6
VDISP
OSC1
OSC2
RESET
28
Q551
Reset
drive
+B
Q601,603,622
Regulator
Q608
Regulator
Q602, Q604
Regulator
Q609
Regulator
Q610
Regulator
D901,902
M5218L
Ic905
Supply reel
pulse drive
4
30
31
X551 (4MHz)
Q906
D612
D601~604
D607~610
D632
-B
S718-2
(POWER)
S718
(POWER)
Power - transformer
T601
AC
IN
Notes
Playback signal
Recording signal
-B
+B
SERWIS ELEKTRONIKI SERWIS ELEKTRONIKI
A
Baza Porad Serw
BLOCK DIAGRAM
1
PLAYBACK
HEAD
(LCH)
REC
HEAD
Magnetofon kasetowy Technics RS-B96
CX20187
DOLBY B/C N
LLS
+B
28
(12)
17
Q401,403
19(24)
9
7
IC451
(34)9
(24)19
(23)20
dbx AMP
Ic502
AN6294NK
Swiching
(MPX/ON)
(32)11
HLS
(31)12
CX2087
IC401
DOLBY B/C
+B
6
2,5,8
+B
28
SENSOR
-B
UPC1297CA
IC301
DOLBY HX PRO
3(16)
10
M5219L
IC 1,2
P.B. EQUALIZER AMP
Tape selector
+B
LEVEL
(12)17(11)
-B
14
+
18
RMS
PRE
EMPHASIS
22
(7)
-
(CrOz)
19(10)
L303
8(11)
ABSO
DET
PEAK
DET
VCA
COMPA-
(17)
2
L301
Q5,7
EM[HASIS
(6)
23(3)
-
+
(12)
RISON
Q1, Q3
M5238L
IC13
Q945
MS selector
A
dbx AMP
IC501
AN6294NK
PRE
24
(4) 25
(5)
26
+
+
-
+
-
-
+
(9)20
RMS
FILTER
16
+B
ELEKTRONIKI
13
+
(2)27
21
(8)
SELECTOR CIRCUIT
(dbx timing adj.)
M5218L
IC10
REC. AMP
AUTO TAPE
7
PROTEC
POWER
1
VR301(VR302)
Overall
frequency
response
adj.
VR501
-B
Q29,Q31,Q33,Q35
Q21~28
ATS
(CrOz)
S973
VR3 (VR4)
P.B goin adj.
ATS
(Metal)
S976
27
(2)
2
10
9
VR5(VR6)
Overall gain adg.
Q19(Q20)
6(37)
3
(40)
(38)
5
42
+B
EMPHASIS
25
24
(4)
(5)
+
+
-
+
-
(8)
16
21
MN4066B
IC11
SIGNAL SELECTOR
12
11
6
PRE
RMS
FILTER
13
1
8
(36)7
MOA
MODE
CTRL
1
-
+
-
(9)
20
26
(3)
2
23
(6)
(10)19
11(32)
+
22
(7)
EMPHASIS
Q933,935
mute drive
EJECT
MOTOR
(31)12
HLS
-B
14
+
LEVEL
SENSOR
(11)
18
RMS
PRE
9
(34)
21
(22)
LLS
20
(23)
Rec
Q37,951,953
Muting
drive
BA6218
IC903
MOTOR DRIVE
M
MOD
CTR
R
7
6
(3
MO
1
2
3
ERASE
HEAD
x
BIAS OSC
Q301~304
VR304
Erase current adg.
-B
SERWIS ELEKTRO
65
B
87
CNR
MN4066B
IC7
SIGNAL SFICTOR
13
1
5
4
9
10
12
MN4066B
IC9
SIGNAL SELECTOR
M5218L
LC5
CLASS AA AMP
Vr701
2
(HEAD PHONES LEVEL)
3
RLY2
M5238L
6
8
11
IC3
Buffer
amp.
Q13(Q14)
VR1-1
(REC LEVEL)
Rch
VR2 (REC BALANCE)
ELEKTRONIKI
Q926
Rch
RLY1
D925
D924
Q11
(Q12)
M5218L
IC701
CLASS AA AMP
Q9
(Q10)
D923
LINE OUT
(LCH)
LINE IN
(L CH)
CD IN
(L CH)
E
H
)
2
,5,8
(36)
MODE
CTRL
1
7
MOA
2
12(13)
4
D702
C
PLAY
+B
(2)10
23
5
D701
CAPSTAN
(3) 9
Q923~925
Q927~930
MOTOR
SN74LSO4MEL
MPX
6
(37)
3
(40)
5
(38)
42
2
Dolby NR drive
24
B
RMT
3
BOS
EJCT.F
6
EJCT.R
REC
7
+B
3
1
Q921,940
941
M
FG
Quartz
lock
control
IC202
SN74LS74AMEL
11(1)
6(5)
8(4)
OSC
drive
15
OSC
HA13440MPEL
MOTOR DIRECT DRIVE
16
17
18
3
+
4
-
12
+
13
-
IC203
Regulator
MPX
drive
MPX
IC201
Zero
cross
Mode
select
25
8
Q201
Rec calibration
level/bias adj.
Q922,931
Vcc
Matrix/
C Cont
M5218L Q15~18
920,939
IC4
+B
19
OSCF
21
+
-
+
-
+
-
Direct/relay
drive
22
DIRECT
VSS
21
Q934,
Q942,946
AVCC
32
S702~710
KEY
SWITCH
KEY 1
33
T/S
CAMP
8
Q919,936
Relay
drive
MB88511-224N
IC901
SOL1
9
1
DMT
SOL2
10
A
26
Swiching
39
MSP
MICROCOMPUTER (MECHANICAL)
Q901
625
+B
+B
22
HU
23
24
25
HV
26
27
HW
HALL
ELEMENTS
Q912~914
Broke
solenoid
drive
Q915~917
Broke
solenoid
drive
B
SOLENOID
(BREAK)
SOLENOID
(TRIGGER)
BA6216
IC902
MOTOR DRIV
M
REEL
MOTOR
E
+B
HEAD PHONES
Q954, 555
Muting
drive
VR1-3
(REC
LEVEL
POSITION
DET.)
M5218L, Q553(554)
IC552
Level meter
amp.
M5218L
IC553 1/2
Buffer
amp.
23
+B
VR IN
DISP
25
(26)
SIGL(R)
20
FL551
+B
1~3,
5~16
32
Vcc
MICROCOMPUTER(FL METER)
MP
FIN
RPT
19
RPS
24
18
17
C
FL DISPLAY
39~42
S1~S19
HD404302SA07
IC551
AVSS
27
33
G1~G6
RESET
Reset
drive
+B
38
VDISP
OSC1
OSC2
28
Q551
4
30
31
X551 (4MHz)
-B
TCH
33
216
DRIVE
+B
S711~715,720~723
KEY
SWITCH
GP2S06BC
IC912
-B
+B
-B
-B
+B
+B
PHOTO
COUPLER
Regulator
Q605,606
M5218L
Ic905
Supply reel
pulse drive
Q601,603,622
Regulator
Q608
Regulator
Q602, Q604
Regulator
Q609
Regulator
Q610
Regulator
D901,902
Q906
D612
D601~604
D607~610
D632
(POWER)
S718-2
(POWER)
S718
Power - transformer
T601
1
AC
IN
Notes
Playback signal
Recording signal
M5218L
IC904
Q907~911
B
38
40
34
12
DISP
M.PULSE
SOL2C
Q905,Q613,620
Switching
6
7
9
1
3
2,5,8
KEY2
RMF
REEL
PULSE
RMR
1411
Take-up
reel pulse
drive
S972
(HALF)
S971
(MODE)
28
MODE
EX
29
ARM
INH
RES
POF
16
20
27
HALF
X
13
17
X901
+B
GP2S06BC
IC971
ELEKTRONIKI
PHOTO
COUPLER
S717
(ARM)
S975
(F.REC INH)
36
Q932
18
Reset
drive
Q607
+B
Swiching
-B
-B
Baza Porad Serwisowych
Magnetofon kasetowy Technics RS-B965
WIRING CONNECTION DIAGRAM
F
REEL MOTOR P.C.B.
W4
M
4
W201
321
T601(Power transformer)
1
10
CN6A CN6B
Cn10
5
1
321
W10
M
EJECT MOTOR P.C.B.
H
AC IN
MAIN P.C.B.
A
5
W11
G
For (GC) area.
VOLTAGE
ADJ.
S601
CN13
CN12
1
6
CP16
2
3
W10
LEAF SWITCH P.C.B.
10
CP13
10
CP12
D
REC AMP P.C.B.
1
BLK
2
GRY
WHT
3
WHT
BLK
GRY
BLK
WHT
5
4
BLK
6
GRY
WHT
ERASE
HEAD
LINE
OUT
CN1
BLK
WHT
BLK
WHT
PLAYBACK/
RECORD HEAD
LINE
DIRECT IN
IN
CP2
5
C
dbX/DOLBY NR
P.C.B.
CD
BLK
WHT
WHT
BLK
WHT
1
2
BLK
BLK
3
BLK
BLK
4
WHT
11
11
10
W6
(S718) (S719)
POWER
CN3
J971
1
1
B
1
OPEN/
CLOSE
4
CN4
E
1
MECHANISM P.C.B.
POWER SWITCH/
HEADPHONES P.C.B.
(VR701)
PHONES
LEVEL
PHONES
Cn11
OPERATION
I
SWITCH P.C.B.
10
CAPSTAN MOTOR (D.D) P.C.B.
N
W201
2
10
Cp11
FL DRIVE P.C.B.
L
CP5
1
CN5
J201A
CN2
CP2
CN701
1
9
5
CP14
321
CN14
REC LEVEL P.C.B.
J
5
CP701
K
SWITCH P.C.B.
CP15
1
CN15
5
CP17
4
1
(CP7)
10
(CN7)
(Cp8)
10
M
1
(Cn8)
2
1
CN201A
FG P.C.B.
3
1
CP9
10
CN9
SERWIS ELEKTRONIKI
Loading...