Kenwood RXD-790 Service Manual page 30

AT
CD CHANGER MECHA. :CDM-27
(D40-1562-X5)
PICKUP ASS'Y:T25-0050-05
1
E
A
C
B
F
1/2VCC
VCC
GND
SHORT LAND
LD
MON VR1 1K
2
FOCUS
COIL
FO-
TRAKING
COIL
+
+
SL SW
3
LD SW
UNLD SW
UP/DOWN SW
ST SW
PS SW
4
V-CD BOARD (W02-2618-X5)
IC1 : CXA1782BQ 2
X
IC2 : CXD2500BQ
IC3 : BA6198S
IC4,5 : TA8409S
IC6,7 : TC74HC166AP
IC8 : NJM2100D
IC9 : NJU3713D
IC10 : MN1872423KEN
IC11 : TC74HCU04AP
IC14 : PCM1717E
D1-5,8,9,13-17 : 1SS133 or
HSS104
5
D6 : UZ-3.9BS or
MTZJ3.9
D7 : UZ-5.6BS or
MTZJ5.6
D10,11 : S5688B or
1SR139-400
D12 : KBP02ML-6127
Q1 : 2SC2785(F,E) or
2SC1740S(Q,R)
Q2,6,11,12 : 2SA954(L,K)
Q3 : UN4112 or
DTA124ESA
Q4,7 : UN4212 or
DTC124ESA
Q5 : 2SC3940A
Q8,14-16 : 2SD2061(E,F)
Q9,10 : 2SC2878(B)
Q13 : 2SA1286-T11
6
SIGNAL LINE
GND LINE
+B LINE
+B
-B LINE
-B
CAUTION: For continued safety, replace safety critical components only with man-
ufacturer's recommended parts (refer to parts list).
ponents. 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 resis-
tance measurements shall be carried out (exposed parts are acceptably insulated
7
from the supply circuit) before the appliance is returned to the customer.
AU
16 1/2VCC
15 VCC
E
14
C1
13
12 A
11 B
10 C2
CN3
9 F
SW-GND
8 LD GND
SL SW
SLM(-)
7 LD
Q
SLM(+)
6 VR
DM(-)
5 MON
DM(+)
4 FC+
3 TC+
2 TC-
1 FC-
CN3
D.M
1 DM(-)
2 DM(+)
SLM
3 SLM(-)
Q
4 SLM(+)
5 SLT SW
6 SW-GND
CN4
1 SW-GND
2 LOAD SW
3 SW-GND
4 UNLOAD R
+
L.M
5 M-GND
6 LOADM
CN5
1 DOWN SW
2 SW-GND S
3 UP SW
CN6
1 SW-GND
2 ST-SW
3 SW-GND
T
4 PS SW
+
R.M
5 M-GND
6 ROTAM
1 A+3.3V
2 CVOUT
3 COUT
4 VOUT
5 VGND
6 VGND
7 R +5V
8 D+3.3V
9 D+3.3V
10 DGND
11 DGND
12 XCK
13 EMPH
14 DILRCK
15 HRDY
16 DISCK
17 DIDATA
18 HINT
19 SBCK
20 VRST
21 HCK
22 HDIO
23 CDSCK
24 CDDATA
25 CDLRCK
26 IPFLG
27 HSEL
28 SUBC
29 CLDCK
30 BLRCK
AV
CD UNIT
(X32-3440-20) (A/2) : RXD-V860(M,I)/RXD-V890(M,I)
(X32-3532-10) (A/2) : RXD-V860(V)/RXD-V890(V)
10.3V
13.3K
-
-
+
+
6
5
4 7 (
)
3 ) 6 ( - +
13.3K
2 ) 9 (
1 ) 10 (
10.2V
FE-
BIAS
CN2
RF 1
FE1
2
FE2
3
VC 4
TE2 5
TE1
6
R1 1K
S.S
7
T-
GAIN
CN1
FC-
16 ) 22 (
TE-BAL
15 28 (
TC- )
VR2 47K
TC+ 14 27 (
)
FC+ 13 ) 21 (
MON 12
VR 11
LD 10
D1
LD GND 9
F 8
R2 47K
C2 7
R3 47K
B 6
R4 47K
A 5
R5 47K
C1
4
L1
E 3
10uH
VCC 2 DSP+5.0V
1/2VCC
1
indicates safety critical com-
AW
- 13.3K
-
+
+
REGULATOR
+
BIAS T.S.D.
+
MONITOR
-
- 13.3K
REG+12V
R17
100K
C5
100u10
+
R12
3.3K
2.5V 48
VC
C4 0.47u50
2.5V 47
TDFCT
+
C3 47P
R10 47K
2.5V 46
TZC
C2 4700P 2.5V 45
ATSC
R11 330K
2.5V 44
TEI
(BOTTOM VIEW)
2.5V 43
LPFI
RF SERVO
2.3V 42
TEO
41
VEE
40
EI
R23 56K 2.5V 39
E
R6 100K
2.5V 38
F
R47 9.1K
2.2V 37
FE.3
R45
0V
Q1
4.7K
0.6V
R44
1M
2.5V
2.5V
3.7V R39
Q2
2.0V Q3
1.5K
4.4V
0V
AX
IC3
4ch
BTL
AMP
DRIVER-
T.S.D
MUTE
REGULATOR
50K
4.9V
R26 1M
+
IC1
DSP+5.0V