Kenwood RXD-NV301 Service Manual page 20

U V
Q Q
3 7 6 3 1 5 1 5 0
SURROUND BOARD
1 IC605
Lch
CNT601 C632L R630L
(1/2)
R632L C635L
3.3u50 470 3
2.2K 10u35
L IN 1 1
+
2
+
4
AGND 2
-9.5V
9.5V
IC605
+9.6V
C632R R630R
(2/2) 9.6V
R632R
3.3u50 470 5 8
R IN 3 7 2.2K
+
6
11
Rch 93
10
94
+5V 4 +5V
R617 9
5.0V
10K
2 GND 5
8
8
7
6
6
5
5
4
4
3
3
R616 10K 2
R615 10K 1
CEN MUTE 6 32
SW MUTE 7 31
SURR MUTE 8 33
C/SW RLY 9 34
SURR RLY 10 35
IC602
R625
(BOTTOM VIEW)
1K
CD IN 11
SURROUND
SOUND
CODEC
3
5.0V
SCL/SCK 12 69
SDA/SO 13 67
+5V
ADI/SI 14 68
CS 15 66
CSB 16 65
62
ADO/CS 17 6
PDN 18 8
OPT1
5.0V
VCC +5V +5V
L601
C602 R601
GND +5V
T E 0.01 470
VOUT L 1 3 9 4 2 2 9 6 5 1 3
OPT JACK R
4 RCA1 C605
0.1
COAXIAL IN
OPT2
VIN
L605
VCC +5V +5V
5.0V
GND
OPT LACK T
IC601 : MC74HCU04AD
IC602 : CS4226-KQ
IC603 : YSS912
IC604 : TK11233AM
IC605-609
: NJM4565MD
Q601 : DTC114YS
Q606,607
5
: DTC114TS
Q602,604,605
: DTA114YS
Q608,609
: 2SK117(Y)
D601-604
: KDS193ST1
D605 : MTZJ8.2B
DIGITAL LINE
SIGNAL LINE
GND LINE
B LINE
+B
B B LINE
6
w w w
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 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.
7
W X
+5V
4.7V
23 2.4V
24 2.4V
PLL
25 2.4V
ANALOG LOW PASS
VOLTAGE
26 2.4V
AND OUTPUT STAGE
REFARENCE
INPUT INPUT
MUX GAIN
R620
27 10K
4.7V
28 2.4V
29
DIGITAL
DIGITAL FILTRS
FILTERS
30
MUX SERIAL AUDIO DATA INTERFASE
31
0V 32
46
0.9V 33
4.8V
45
47
2.3V
C624 C623 220u10
+
22P
C622 1000P
L603 R621 2.2
+5V
L604
+5V +5V
+5V
D601
L602
3.3V
+5V VDD
IC601
IC604
4.8V
R611 3.3 1W
+5V +5V
D602
9.5V
+9.6V
The DC voltage is an actual reading measured with a
x a o high impedance type voltmeter with a cassette loaded
at playback mode. The measurement value may vary
depending on the measuring instruments used or on
. i
the product. Bias circuit DC voltage is measured while
in the record mode.
Y Z
4.9V
+5V +5V +5V
MICROPROCESSEOR
INTERFACE
CONTROL SIGNALS CONTROL SIGNALS
CONTROL REGISTERS
3.3V 81
VDD VDD
R647 33 82 2.4V
82
R648 33 83 2.4V
83
SDOACK SEL SDIBCK SEL
R649
L,R
33 84 1.5V
84
R650
LS,RS
33 85 0V
85
C.LFE
86
87
88
89
DELAY RAM
Q Q
90
3 7
VSS
3.3V
91
VDD VDD
R651 10K 0V 92
R652 10K 0V 93
R653 10K
0V 94
R654 10K 0.8V 95
R655 10K 0.8V 96
R656 10K 0V 97
OPERATING CLOCK
R657 10K
0.9V 98 (30MHz)
R658 10K 0.9V 99
100 VSS
PLL
IC603
DOLBY DIGITAL
/PROLOGIC
/DTS DECODER &
PROGRAMMABLE
DSP
R640
1M
4.9V
+5V +5V
VDD VDD
DOLBY and the double-D symbol are trade-
u 1 6 3
marks of Dolby Laboratories Licensing Cor-
y
poration. Noise reduction circuit made under
license from Dolby Laboratories Licensing
Corporation.
AA AB
2 4
8 9 9
L
C638L R661L R662L
10u35 100 3.3K
+
+12V
Q604
+5V
Q605
4.7V
VDD
3.3V
R
C638R R661R R662R
10u35 100 3.3K
+
COEFFICIENT/
PROGRAM RAM
50
VSS
R644 CENTER
10K
49 4.9V
C638C R661C R662C
R643 10u35 100 3.3K
48 4.9V
+
10K
SDOBCK SEL
47 1.8V
47
SW
46 0V
46
45 0.9V C638SW R661SW R662SW
45 10u35 100 15K
+
6 3 1 5 1 44 5 0 8 9
43
42
41
VDD VDD
40 SL
VSS
C638SL R661SL R662SL C640SL
39
10u35 100 3.3K
38
+
37 4.7V
SUB ON/OFF
36 4.8V
SW MUTE
35 0V
SURR RLY 35
34 4.7V
C/SW RLY 34
33 0V SR
SURR MUTE 33
32 4.9V
C638SR R661SR R662SR
DEN MUTE 32
31 10u35 100 3.3K
PVDD +5V
+
4.9V
Q602 Q601
-8.2V R629 10K
C631 0.01
+5V
VDD
3.3V
R635 10
9.5V 12V
R634 10
+9.6V +12V
m
c o
.
RXD-NV701/NV701E
Y39-3640-10
AC AD
2
8 9 9
MAIN
-CP314
5/6
11.9V
C640L C653 100P
+12V E
1000P
R674 10K
C655 CNT602
6
C642L R666L R671 C650
8 7 10u35
6
7 10u35 2.2K 10K 10u35 5 1 FL OUT
5 +
+ +
8
(2/2)
R665L
IC609
1.5K
11.9V
IC608(2/2)
+12V
R682
1K 0V
R672
10K
-11.7V
R679 Q609
Q607 3.3M
4.6V
R680
Q608
3.3M
C654 100P
2
GND
-8.8V
R678 10K
0V C656
2
Q606 C651
1 10u35
10u35 3 3 FR OUT
+
+
4
C640R C642R R666R (1/2)
1000P 10u35 2.2K IC609
+
-11.7V
IC608
(1/2)
4 GND
3
1
2
4 R665R
1.5K
12V
-11.7V
C640C 11.9V
+12V
1000P
C642C R666C
8
5
7 10u35 2.2K
6 5 C OUT
+
IC606
R665C
(2/2)
1.5K MAIN
-CP312
6 GND
5/6
C640SW
1800P F
IC606
(1/2)
C642SW
3
47u16
1
2 7 SUB OUT
+
4 R665SW
2 4 9 8 2 9 9
12K
8 GND
12V
-11.7V
11.9V
+12V
1000P
IC607
(2/2)
8 C642SL R666SL
5
7 10u35 2.2K
9 SL OUT
6
+
R665SL
1.5K
10 GND
C640SR
1000P
IC607
(1/2)
C642SR R666SR
3
1 10u35 2.2K
2 11 SR OUT
+
4 R665SR
1.5K
12 GND
-11.7V -11.8V
12V 13 -12V
+12V 14 +12V
11.9V
RXD-NV701 (E,T,M,X,K,E2,Y) (3/6)