Kenwood VR-405 Service Manual page 19

AY AZ
(X08-3010-10) (A/3)
Q Q
IC14
ANALOG 6ch
3 7 6 3 1 5 1 5 0
INPUT SELECTOR
R121 10K
Lch
-11.9V
C121 22P
-11.9V
12V
R123 10K
R125
R127 2.4K 2
8
1 100
3 Cch
LPF
4 IC13 (1/2)
+12V
12V
C126
100P
IC13 (2/2)
4
5
R128
7
2.4K 6
8
12.0V
+12V
R124 10K
R122
10K C122 22P
R126
S.W ch
100
+12V
12V
-11.9V 12.0V -11.9V 12.0V
5
C209 C309
0.01 0.01
C210 C310
100P 100P
LS 1 7 RS Cch 1
4 8 4
3 2 6 5 3 2
IC21 IC21 IC31
T E
L (1/2) 1 3 9 4 2 2 9 6 5 1 3 (2/2) (1/2)
R211 R209 R210 R212 R311 R309 R310
5.6K 2.7K 2.7K 5.6K 4.7K 10K 10K
C205 C206 C305 C306
1800P 1800P 1800P 1800P
R203 R204
100K 100K
R303 R304
100K 100K
41
+2.5V
+5V
+3.3V +3.3V
R426 220
+5V
5.0V
R427 220
IC41 IC42
IC41
LEVEL
5.0V
SHIFTER
(5V-3.3V)
w w w
9
.
BA BB
20
12
C141
100P
IC14
6
8
9
41
40
11
13
7
16 15
C152 R152
2.2 10
16
C151 R151
2.2 10
17
+12V
12V
-11.9V
7 SW
8
6 5 IC31
(2/2)
R312
4.7K
+12V
12V
+2.5V
+3.3V
1
10
+5V +5V
IC42
LEVEL
SHIFTER
(3.3V-5V)
x a o
y
i
BC BD
8
C183
R165 750 1
+7.1V
5.4V
R166
ELECTRIC 2.7K
VOL./ TONE
IC15
42
R175 47K 1
41
R174 47K 2
41
40
I/F
40
R173 47K 3
MCU
39
39
R172 47K 4
38
5 37
+7.1V AVDD AGND R164 C182
C160 2.2 6 36 100 2.2
36
7
R163 C181
GND
C159 2.2 8 35 100 2.2
35
R162 C180
C158 2.2 100 2.2
9 34
34
10
R161 C179
GNDC
C157 2.2 11 33 100 2.2
33
R160 C178
12 32 100 2.2
GNDR 32
C156 R154
13 R159 C177
31 100 2.2
1 10
14 31
GNDL
30
C155 R153 15
AVSS -7.1V
29 C167 2.2
1 10
C169
16
28 R157 1K 2200P
TONE
27 C168 2.2
17
C170
26 R158 1K 2200P
R155 C161
TONE
10 8200P 18
C162 R156
LTRE
8200P 10
25
RTRE
C163 19 24 C164
LBASS3 RBASS3
0.015 20 23 0.015
LBASS2 RBASS2
C165 21 22 C166
LBASS1 RBASS1
0.33 0.33
7.1V -7.1V
C185 C186
0.1 0.1
Q16
D151 D152
7.6V -7.6V
Q15
R170 R171
470 470
12.0V -11.9V
Q Q
+7.0V -7.0V
3 7 6 3
AVR AVR
+12V
12V
+2.5V
2.5V
AVR IC47
R454
4.7
+2.5V OUT IN
1/4W
GND
PROTECTION
+3.3V
3.3V
AVR IC46
R453
Q42
1
8.0V
+3.3V OUT IN
1/4W
GND
R463
47K
+5.0V
5.0V
AVR IC45
R452
1
+5V OUT IN
1/4W
GND
+B
8.4V
u 1 6 3
.
BE BF
IC1,11,13,21,31
: NJM4565MD
IC2 : AK4527-VQ
2 4
9 9 8
IC4 : TCWU04FU
IC5 : AK4110-VF
IC6 : TC7WH123FU
IC12,14 : NJM7311AM
IC15 : M62446FP
IC41 : TC74HC07AF
CN1
IC42 : TC74HCT7007AF
7 1 RREC IC45 : TA48M05F
IC46 : TA48M033F
19 2 RDVD
IC47 : TA48M025F
5 3 RT
IC51 : CS493253-CLR or
4 GND
CS493263-CLR
IC61 : NJM2279M
5 LT
Q1 : DTC124EUA or
6 LDVD
UN5212
7 LREC
Q15,61 : 2SD1664(Q,R) or
8 GND
2SD1963(R,S)-G
9 LAUX
Q16,62 : 2SB1132(Q,R) or
10 GND 2SB1308(Q,R)-G
11 RAUX Q41 : 2SC4081(R,S) or
D
2SD1819A(Q,R)
12 GND
Q42 : 2SA1576A(R,S) or
31 13 L
2SB1218A(Q,R)
33
14 LS
35 15 C D1,3 : 1SS301 or
DAN202U or
36 16 SW
MA142WK
34 17 RS
D2 : 1SS300 or
32 18 R
DAP202U or
19 AGND
MA142WA
12V 20 -VSS D6,75,76 : MA111
D41 : S1ZB20(4072)
+12V 21 +VDD
D42,43,61,62
22 MGND
: UDZ5.6B
+B 23 MVDD
D44 : UDZ3.9B
8.0V
D151,152
: UDZ7.5B
C411 22P
C412 22P
C413 22P
CP41
180 CN2
12 21 CDOUT
3 20 CDIN
5 19 CCLK
41 18 CS CODEC
C414 22P
C415 100P
C416 100P
1 5 1 5 0 8 9 2 4
CP42
180
1 17 CS DSP
9 16 PD DSP
10 15 INTREQ
X14-A/6
13 14 CS ROM
-CN2
CP43
4/4
180
17 13 PD CODEC
F
2 12 ERR
4 11 DZF
6 10 DDET
C417 100P
C418 100P
CP44
180
39 9 LATCH
40 8 DA
7 ST1
41 6 CK
7
R412 220
R465
5 5 ST2
1K
4 PROT
3 SDATA
C753
2 SBUSY
0.01
1 GND
Q41
D76
D75
J75
R461
C752
220
220P SYSTEM
CONTROL
BUSY
C751
220P
DATA
GND
CN5
D41
1 DPWR1
R450 C
1
2 DPWR2
1/4W m
c o
VR-405/406/414 (3/4)
KRF-V5030D/V5030D-S/V5030DE (3/4)
KRF-V4530D (3/4)
KRF-V6030D/V6030D-S/V6030DE (3/4)
KRF-V4530D/V5030D/V6030D/VR-405/406/414
Y05-4050-10
BG BH
2
CAUTION: For continued safety, 9 9
replace safety critical components
only with manufacturer's recommend-
ed parts (refer to parts list). indi-
cates 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.
The DC voltage is an actual reading
measured with a high impedance
type voltmeter with a cassette loaded
at playback mode. The measurement
value may vary depending on the
measuring instruments used or on the
product. Bias circuit DC voltage is
measured while in the record mode.
LC72131
2SD2351
NJU7311AM LA1837
9 8 2 9 9
NJU7313AM LA1838
XC62FP5102P S-80840ANY
TC7WU04FU BA05T
5
8
4
1
M62446FP
TA48M033F