Kenwood RXD-M31 Service Manual page 13

AE AF AG
MAIN
BOARD
-CN405
1
1/4
CASSETTE BOARD
A
R708A
430
MAIN
R707A
BOARD
430
-CN404
1/4
B
2
R777A
10
R778A
10
IC701
PLAY/REC HEAD SW
(PB:ON, REC:OFF)
CN702 L701
C715
10mH R727A 10u16
6 6
Lch
15K
C717A
560P
BIAS
5 5
ADJ.
(Lch)
3 4 4 C718A
Rch
560P
L702
R728A C716
10mH
15K 10u16
3 3
2 2
ERASE
1 1 11.5V
BIAS
ADJ.
(Rch)
4
R786A
10K
C721
4.7u50
Q712
R/P SWITCH
Q703
Q712 BIAS AVR
R784A
R774A
4.7K
R738
2.7K 9.7V
10
C727A
5 REC: 9.1V
0.022
BIAS
T701
BIAS OSC OSC
Q702
R739A
18K
Q701
R740A
18K
C728A
0.022
+
IC701 : BA3126N Q701,702,706,707,709, D703,704
R.REC
1 IC702 : HA12219NT 711,713,715 : 2SC3330(S.T) D702,705,706
6
F.REC IC703 : LA6458S Q703 : 2SC2274E
2
Q705,712 : 2SA1317T D708
PACK
Q708 : 2SA984E D709
3
Q710 : 2SB1205(S.T)
CrO2
4 Q714 : 2SD2061E
SOLEMOID
5
GND
6
SENSOR
7
8
470
9
PLAY
10
M+
11
M 12
7
AH AI AJ
IC703 OPE AMP
R705A
220K
IC702 C735A 47P
P.B/REC EQ.
C705A R709A
11
12 0.01 12K
GND
NF/L
R735A 22K 10
IREF 13 R711A
EQ/L
C707
R703A 10K 9
14 18K 2.2u50
B.IN/L
PB.O/L
R704A 10K
8 +
B.IN/R
C708
2.2u50
7
VREF
+
6 R706A R718A C742A
PB.I/L 220K 10K 47P
5
PB.I/R C734A 47P C732A
100P
4
REC SW R710A C706A
12K 0.01
15
PB.O/R
16 R712A
EQ/R
18K
17
NF/R
+
18
120/70
3
19
REC.O/L A/B
+
20
B.1/2
C713 R719A
21 2.2u50 18K C738A
REC.I/L 3300P
+
C714 R720A
22 2.2u50 18K
REC.I/R
2 +
REC.O/R
+
C722
100u16 1
VCC
+
R734A
+
1K
+ +
11.9V 1.3V
R751A R752A
33K 22K
+12V +12V
1.8V
Q707
11.9V
Q703
+12V +12V +12V
REC: 10.3V
Q705
11.7V R748A 5.0V
47K
D702
R745A
10.9V
1K
BIAS
ON/OFF
REC: 0.7V
SW
Q713
R782A
+ 10K
R750A
Q706
10K
REC: 5.0V
: 1N4004
CN703 MOTOR 15.9V
DRIVER
: 1SS133
Q714
12 16
12.2V
: MTZJ5.1B
11 17
: MTZJ13B
10 18 Q710 Q708
Q715
12.8V
9
8
7 +5V
6 13.4V
Q711 SOL.
5
DRIVER
+
4
Q709
3 19
2 20
+5V
1
5.0V
AK AL AM
POWER BOARD
CN601
LOUT 17
AGND 16
Q613
ROUT 15
Q613
MUTING
C606
DRIVER
220u10
+
AGND 14
C743A R717A
47P 10K A
AMUTE 13
C733A
PWR07 12
100P
11.9V
A+12V 11 +12V
R655A
OP/CL 10
10K
R780A
4.7K CD+8V 9 +8V
5.6V
u+5.6V 8 +5.6V
15.9V
+
+ D+12V 7 +12V
C724 M.GMD 6 11.9V
100u16 11.3V
CDGND 5
+
-32.2V
VFL 4 B
C739A FLAC 3 3
3300P
FLAC 2 2
F.OFF 1 1
SW601
12.0V
PANEL
OPEN/
CLOSE
SW
CN606
OP/CL 1
+12V 2
GND 3
B+(ON/OFF) 4
CN701
1 R OUT CN607
2 L OUT
MD+8V 1 +8V
3 A.GND MDGND 2
4 R IN AMUTE 3
A+12V 4 +12V
11.9V
+12V 5 +12V CN603
18 17 16 15 14
6 L IN
+5V 7 +5V
8 M.GND
18 17 16 15 14
CN602
9 D.+12V
B
10 BIAS
R754A 11 B.1/2
9.1K
12 A/B.1
R755A
13 A/B.2
3.9K
14 SOL
15 CMP
R763A
100
16 16 R.REC
R764A
100
17 17 F.REC
R765A
100
18 18 PACK
R766A
100
19 19 PLAY
20 20 PHOTO
+5V
AN AO
IC601
POWER
AMP
R602A C608
4.7K 2.2u50
+
R601A C607 2.2u50
R605A
+
4.7K 18K
MUTING
Q601 R606A
Q603
18K
R603A
22K C611 C616
0.22 0.22
R654A C605
1.8K
ON: 3.9V 1u50 18.5V
OFF: -2.5V
+ +
+
ON: 4.5V -18.9V
OFF: 5.0V
+
+12V AVR
18.0V
Q604
16V
R622
+12V +12V
3.3 1/4W
D620
R623A R659
+8V
220 150
+5.6V
12.5V
+
STANDBY
+12V
:19.3V
D612 D604
POWER ON: 0.1V
R627A Q606
10K
0.8V 13.3V
15.9V
POWER ON: 0.7V
12.0V
Q602 15.8V
+8V AVR
R609 Q607
R629 15.9V
3.3 1/4W +8V +B
0.22
R610A R624 7.7V
R630A Q608 2W
220 150
820
11.4V 8.3V
Q610
Q605
R635A
+ Q609
C621 12K
8.9V
10u16
5.6V
R637A
R634A 5.1V
47K
+
100
12.0V
+ 15.2
Q611
R638 15.5V
10
Q611
+5.6V AVR
+8V
+5.6V
6.2V
+
D614 D606
+12V
+12V
16V 16V
+
+16V +16V
13 12 11 10 9 8 7 6 5 4 3 2 1
TRANSFORMER BOARD
13 12 11 10 9 8 7 6 5 4 3 2 1
T601
F601
3.15A 250V
+16V
C635 0.01
18.5V
C647 0.01
F602
BD601 3.15A 250V
16V
-18.9V F603
3.15A 250V
+12V
C648
0.01
BD602
D611
+ R642A
1.2K D610 C649
0.01
B
-32.2V
Q612
D607 D609
B
C639 F604
R646
0.01
500mA 250V
330
+
+
+
AP AQ AR AS
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended
parts (refer to parts list). indicates safety critical
components. For continued protection against risk of
fire, replace only with same type and rating fuse(s). To
CN604 CN605
JK602
reduce the risk of electric shock, leakage-current or
5 1
resistance measurements shall be carried out
4 2
(exposed parts are acceptably insulated from the sup-
3 3
ply circuit) before the appliance is returned to the cus-
tomer.
2 4
The DC voltage is an actual reading measured with a
high impedance type voltmeter with a cassette loaded
at playback mode. The measurement value may vary
depending on the measuring instruments used or on
1 5
the product. Bias circuit DC voltage is measured while
HEADPHONE
in the record mode.
DOLBY and the double-D symbol are trademarks of
Dolby Laboratories Licensing Corporation. Noise
reduction circuit made under license from Dolby Labo-
ratories Licensing Corporation.
CN608 CN609
JK601
1 5
2 4 Lch+
3 3 Lch-
4 2
Rch-
5 1 Rch+
JK603
R617A
1k
IC601 : TDA7265 D601,604,610-614,620
: 1SS133
Q601-603 : 2SD2144W D602,617 : MTZJ6.8B
Q604,607 : 2SD2061F D605 : MTZJ5.1B
Q605,610,613 : 2SA1317T D606,615 : MTZJ5.6B
Q606,609 : 2SC3330(S.T) D607 : MTZJ6.2B
Q608,611 : 2SC2274E D608 : MTZJ33B
Q612 : 2SA984E D609 : IN4004
BD601,602 : RS402
DIGITAL LINE
SIGNAL LINE
GND LINE
B LINE
+B
DESTINATION
R649 F601-603 F604 F605
COUNTRY ABB.
U.S.A. K
CANADA P
YES F50-0151-08 F50-0149-08 F50-0150-08
GENERAL MARKET M
AUSTRALIA X
U.K. T F50-0152-08 F50-0153-08 F50-0154-08
NO
EUROPE E F50-0151-08 F50-0149-08 F50-0150-08
(K,P) : AC120V 60Hz
(Y,M) : AC110-120V/220-240V~
50/60Hz
(C,Q) : AC220V~ 50Hz
(X) : AC240V~ 50Hz
(T,E) : AC230V~ 50Hz
R649
3.3M
MOTOR
1/2W BOARD
-CN901
RXD-M31
3/4
E
Y39-3210-11
RXD-M31 (2/4)