Kenwood VR-705-SA Service Manual page 8

F G
Q Q
3 7 6 3 1 5 1 5 0
D603
C740
10u50 R736
33
+
10K
C739
10u50 R735
32
+
10K
R640
4.7
D602
1/4W
33
R IN
32
L IN
C703
31
R OUT1 31
2200P
30
L OUT1 30
2
29
C701 R701 R705
R OUT2 29
C 28 10u50 2.2K 2.2K
L OUT2 28 30
DAC)
27 +
R OUT3 27
26
L OUT3 26
25
C621
DZF1
24 2.2u50
V COM
+
23
VREF H +5V
C702 R702 R706
10u50 2.2K 2.2K
31
+
C704
2200P
C713
820P
C711 R711 R715
10u50 3.3K 2.2K
28
+
+5V
14
12
10
C712 R712 R716
8
10u50 3.3K 2.2K
29
+
T E
L 1 3 9 4 2 2 9 6 5 1 3
C714
IC605 820P
LEVEL
SHIFTER
C723
2200P
C721 R721 R725
10u50 2.2K 2.2K
26
+
1
C722 R722 R726
10u50 15K 18K
27
+
C724
8200P
13
11 +2.5V
9
IC609
1 5
VSS CE
2
C656 R812
+5V V IN
47u25 1
3 4
V OUT EXT
+
1/4W
+2.5V
+3.3V
+2.5V AVR
+5V C654
10u50
+9.9V
+
IC611
CN901 C661
0.01 4 3
1 VID. D GND C CTL
2
GND
5 1
+3.3V OUT VCC
X09-A/9-
2 CTLB
WH120
w w w
3 V.MUTE
+3.3V AVR
3/5
4 CTLA
5 +12V
AJ-5
6
+5V
.
H I
IC601 : CS493263-CLG or D601,608,613,614 Q601,901,902
CS493263-CLR : MA111 : DTC124EUA or
IC602 : AK4586 D602,605 : 1SS301 or UN5212
IC603 : TC7WU04FU DAN202U or Q606 : 2SB1375
IC604 : TC7WH123FU MA142WK Q608 : 2SC4081(R,S) or
IC605 : TC74HCT7007AF D603 : 1SS300 or 2SD1819A(Q,R)
IC606 : TC74HC07AF DAP202U or Q609 : 2SA1576A(R,S) or
IC609 : XC62EP2502MR MA142WA 2SB1218A(Q,R)
IC611 : BA033LBSG D604 : UDZ3.9B or
IC612 : BA05T HZU3.9(B2)
IC701-703,707 D606,607 : UDZ5.6B or
: NJM4565MD HZU5.6(B2)
IC705 : NJU7311AM D609 : D2SBA20F03
IC901,902 : MM1228XF D610 : UDZ5.1B or
+B
HZU5.1(B2)
D900-902 : 1SR154-400 B
FILTER
FL +12V
IC701 (1/2)
12V
R741
3
1 220
2
8
C700 CONFIGURATION
IC705
47P
+12V
1
IC701 VSS
2
(2/2)
FL
R742
6 R751 3
7 220 LS
5 4.7K
4
4 LS IN2
5
12V
6
FR
7
8
SL
9
IC702 (1/2)
R743
10
3
220
1
11
2
12
8
13
C744
N.C.
+12V 100P 14
ST
15
IC702
GND
(2/2)
R744
6
7 220
5
4
12V
SR
CENTER
IC703 (1/2)
R745
3
1K
1
2
8
C719
+12V
47P
IC707
+12V
R747
SW
(1/2)
100
IC703 MIX
(2/2)
R746
6
7 100
5
4
12V
SW
D604
R664 Q606
560
1/4W
R666
18 2W
+9.9V
D606
R670
D607
4.7
1/4W
C665
33P
R673
D608
5.1V 47K
+5V
x a o
IC612
AVR y
Q609 R674
+B 4.7K
OUT IN
GND Q608
i
0V
J K
8
DVD Y IN
(X08-3230-10)
VIDEO2 Y IN
DIGITAL LINE
DESTINATION
MODEL NAME UNIT No.
SIGNAL LINE COUNTRY ABB.
U.S.A. K4
GND LINE
VR-716A 0-11
CANADA P4
B LINE
U.S.A. K1
VR-705-SA 0-10
B LINE
CANADA P1
DVD Cb IN
+12V
VIDEO2 Cb IN
12V
DVD Cr IN
30
VDD
29
FR
28 R753
RS 28
4.7K
27
VIDEO2 Cr IN
CN601
RS IN2 27
26
21 PROT
25
20 M GND
24
19 +12V
23
18 A GND
22
17
-12V
21
16 FR
20
27 15 SR IN2
19
SW 14 A GND
18
N.C. 13 SW
17
DATA 17 12 CENTER
16
CK 16 11 A GND
10 SL IN2
9 FL
X09-B/9-
14
CN201
8 A GND
Q Q
28 7 RREC
3 7 6 3
4/5
6 A GND
5 LREC
4 A GND
2.5V
33 3 R IN
2 A GND
2.5V
32 1 L IN
IC707
R748
(2/2)
100
CN605
19 CODEC INT
18 DSP IRQ 1
CP605 180
17 17 SEL DATA
R756 180
16 16 SEL CLK
14
CP603 14 15 ST1
180
11 14 DSP CLK
8 13 DSP D OUT
X14-A/2-
CN803
9 12 DSP D IN
1 11 DSP CE1
5/5
R757 180
19 10 CODEC CSN
CP604
9 CODEC PD
180
10 8 CODEC DVF
44
7 DSP PD
20
6 S DATA
13
5 S BUSY
4 50/75uS
R758 180
12 3 DIG DET
R685
+8.8V 2 +8.8V
1
1 M GND
1/4W
(M)TYPE ONLY
J602
C624
SYNC
100P
CHANNEL
SPACE
SW
SYSTEM
CONTROL
S601
u 1 6 3 100kHz 50kHz
D609 X09-G/9-
CN603
WH110 .
+9.9V 1 AC
3/5
AX-4
2 AC
VR-705-SA, VR-716A (1/5)
9
L M
VR-705-SA/707A/716A
2 4
9 9 8
(X25-6600-10) USED VR-705-SA, VR-716A
C110
10u50
+
J101
C134
1 0.01
IC101
2
1 16
1 IN1B IN1A 16
C135
3 0.01
2 15
NC2 GND1
C111
3 14
10u50 3 OUT1 IN2B 14
4 13
+ GND2 V+
5 12
C136 0.01
4
5 OUT2 CTL
C127 11
C112 IN2A 11
0.01
6
10u50
5 6 OUT3 10
14
GND3
C117
+ 7
9
10u50 NC7 IN3B
6
+
8
IN3A
C113
7 10u50
11
+
C137
0.01
8 C138 0.01
C114
9 10u50
1 IC102
+
10
Q501
C139
0.01
11
16
C115
10u50
C140
+
0.01
+4.9V
J102
C122
R110 33u35
1
Y
R522 4.7K
+
75
C141 0.01
2
3 C124
470u10
Q504
R521
R111
+ 10K
4 75 C119 0.01
Cb
C121
5 470u10
R112
+
6 75 C116 0.01
Q503
Cr
C118
470u10
1 5 1 5 0 8 9 2 4
+
7
CAUTION: For continued safety, replace safety critical com-
ponents 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 cus-
tomer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter with no signal input. The mea-
surement value may vary depending on the measuring
instruments used or on the product.
m
c o
X08-3230-10 USED VR-705-SA, VR-716A (2/2)
N O
2
9 9
IC101 : NJM2584D
IC102 : NJM2580D
Q501 : 2SC3940A(R,S)
Q503,504 : UN4212 or
DTC124ESA
D501 : MTZJ5.6(B) or
HZS5.6N(B2)
R516
560
CN501
+11.9V 5 +12V
X09-A/9-
R503 220
WH124
4 CTLA
R502 220
3 V. MUTE
3/5
R501 220
2 CTLB
9 8 2 9 9 AJ-5
R504
1 VID. G GND
2.2
10