Kenwood RXD-DV50 Service Manual page 14

AY
MAIN BOARD
DV70 ONLY
48.0V
48.0V 5.0V
R213 C202
Q202 Q201
6.8K 220P
12.0V
D202
12.0V
R208
6.0V 6.8K
R214
D205
6.8K
-12.0V -6.0V
R222
6.8K -12.0V C203
220P
Q204 Q203
-48.0V
-5.0V
-48.0V
R290
2.2K
+B
B
B
MIC AMP SECTION
+12V
VR201
C238
MIC
0.47u50
VOLUME
+
R350
220
R351
MIC
220 -11.0V
AMPLIFIER
0V
C234
4
3 0V
0.1u50
1
2 0V
+
IC201
(1/2)
D241
D240
R330
100K
5 4 3 2 1
CN209
M,M2 TYPE
ONLY
AZ
12VA
+12VA
+12VA
+12VM
R489 R487
3.3K 1.8K
R488 R486
3.3K 1.8K
R203 39
R204 39
5
6
L201 0.7uH
R205 39
R206 39
C255 C201 R207 R201
0.1 0.1 10 1W 680 1W
-11.0V
R346
0V
1K
Q246
0V
Q247
R347
1
1K
11.0V
0V
2
R314 39
R315 39
L202 0.7uH
R316 39
R317 39
+B
B
+B
+B
6
11.0V
IC201 (2/2)
5
C241 R337
8 5 0V 0.47u50 2.2K
4
7
+
6 0V
2
3
R333 8.2K
7
C239 470P
8
9
0V
1
6
5
4
2
3
7
8
C1
0.022 9
1
4 3 2 1
CN201
IC201 : BA4558
D230,231,240,
241 : 1N4148
RXD-A850DV/DV50/DV70 (3/4)
Y39-3820-11
BA
CP202
POWER-
10 -12V(A)
CN602
9 -12V(A)
8 DKGND
4/4
7 DKGND
CAUTION: For continued safety, replace safe-
6 +12V(A)
I ty critical components only with manufacturer's
5 +12V(A)
recommended parts (refer to parts list).
4 +12V(M) BD-3
3 +12V(M) cates safety critical components. For continued
2 AGND
protection against risk of fire, replace only with
1 AGND
same type and rating fuse(s). To reduce the
POWER-
CN616
CP403
risk of electric shock, leakage-current or resis-
1 DVD FL
4/4
tance measurements shall be carried out
2 AGND
(exposed parts are acceptably insulated from
3 DVD FR
J
4 AGND the supply circuit) before the appliance is
5 MIC BH-2
returned to the customer.
6 MIC DET
The DC voltage is an actual reading measured
CP203
with a high impedance type voltmeter with no
4 H.P(L)
signal input. The measurement value may vary
depending on the measuring instruments used
or on the product.
3 H.P(R)
2 H.P DET
1 GND
CP205
1 RGND
2
RGND
3
RGND
POWER-
4 LGND
CN604
5 LGND
4/4
6 LGND
7 GND
K
8 GND
9
GND
BD-5
10
GND
11
GND
12 GND
13 AGND
14 AGND
15 AGND
CP204
1 VDD1
2 VDD1
POWER-
CN603
3 VDD1
4/4
4 VEE1
B 5 VEE1
L
6 RLY B+
7 VEE2
BD-4
8 VEE2
9 DC DET
10 VDD2
11 VDD2
JK202
MIC INPUT
JK201
HEADPHONE
RXD-A850DV/DV50/DV70
BB BC
indi-