Kenwood 1050MD Service Manual page 19

K
3.3V AVR
IC10
1.1V
5.1V
C195
1
+ +
R120
100
R124
100
M+5V
+5V
C196
0.1
H+5V
L M
2/3
CN102
A
SENSE
1
2 MNT1(SHCK)
3 DQSY
4 DIG-RST
SQSY
5
6 SCL
7 XINT
(MDM-04) (X29-2580-00) (A/2)
8 MNT2(XBUSY)
9 LDON
SLT SW
10 GND
CN1
11 MOD
1
12 REC SW
2
13 REFLECT
LOAD
MOTOR
14 PHOTO SW
15 PROTECT
M
16 NC (EMPH)
17 STTLMT
SLED
MOTOR
18 DISC IN
19 +5V
M
SPINDLE
MOTOR
M
CN105
1 PHOTO SW
2 REC SW
3 SPDL-
4 SPDL+
5 NC
6 +5V
7 DISC IN
8 SLED-
9 SLED+
10 REFRECT
11 PROTECT
12 GND
13 STTLMT
14 LOAD-OUT
IC1 : CXA2523AR
15 LOAD-IN
IC2 : CXD2652AR
IC3 : TC7S08FU
IC4 : TC7WU04FU
IC5 : TC74ACT540FS
IC6 : X24C01AS-2.7
IC7 : HM51W4400BTT-7
IC8 : BH6511FS
IC10 : L88MS33T
IC11 : AK4520
CN101
Q1 : FMW1
1 SCLK
Q2,3 : DTA144EUA
2 SRDT
Q4,5 : DTC114YUA
3 XLATCH
Q6 : 2SA1576A(R,S)
Q7 : 2SB798-DL
Q8 : 2SJ278
4 WRPWP Q9 : 2SK1764
Q10 : DTC114EUA
5 SWDT
6 MNT3(SLOCK)
D1,2 : F1J6TP
7 MNT0(FOK)
D101 : MA101
8 SDA
9 SCTX
10 ADDT
11 MGND
12 BCK
MGND
13
2/3
14 DADT
X25-
B
M+5V
15
CN2
16 LRCK
17 M+5V
18 LOAD-IN
GND
19
20 LOAD-OUT
21 GND
NON
+3.3V 22 3.3V
( )
< >
DIN
23
X
H+5V 24 H+5V
25 DOUT
26 +5V
+5V
27
28 512FS
29 HGND +B
-B
Y22-7000-00
N
X25-
CN3
+5V
PH1
2 3
1 4
15 14 13 12 11 10 9 8 7 6 5
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended
parts (refer to parts list).
components. For continued protection against risk of
fire, replace only with same type and rating fuse(s). To
reduce the risk of electric shock, leakage-current or
resistance measurements shall be carried out (exposed
parts are acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
The DC voltage is an actual reading measured with a
high impedance type voltmeter. The measurement value
may vary depending on the measuring instruments used
or on the product. Refer to the voltage during
RECORDABLE MD PLAY unless otherwise specified;
The value shown in ( ) is the voltage measured at the
moment of STOP. The voltage followed by (REC) refers
to the value during MD RECORDING.
STOP
PLAYBACK
RECORD
MEASUREMENT IMPOSSIBLE
PLAYBACK
PLAYBACK(DIGITAL OUTPUT)
RECORD
RECORD(DIGITAL INPUT)
GND LINE
+B LINE
-B LINE
1050MD/DM-5090/DM-9090 (1/3)
1050MD/DM-5090/DM-9090
O
(X29- ) (B/2)
PROTECT
S1
CN2
3 3
2 2
1 1
WH1
REC SW
S2
4 3 2 1
CN3
PH1 : T95-0140-05
indicates safety critical