Kenwood LD-K300V Service Manual page 12

AY
+5V
IC3
DIGITAL
VIDEO
PROCESSOR
C69
47u10
+
4.6V
R41
C71
2.4V
220
0.01
+5V C66
4.6V
0.01
4.9V
0.6V
RST
49
WVDD
4.5V 50
0.2V 51
0V 52
HZS HER
2.3V 53
2.4V 54
ADC BUR TAN
0V 55
2.4V 56
WCT
2.2V 57
58
4.7V
FIFO
DOSP
2.1V 59
0V 60
61 TPS
SPDL
62
RCK
1.8V 63
CKG
64
1.8V
4.6V
4.6V 4.6V
+5V
+
+5V
IC2 : LA7133 Q1,44,61,68,72,73
IC3 : PD0192A Q2~5,16,19,32,33,36,77~80
IC4 : PD0011A-SP
IC7 : TC4053BF Q13~15,17,18
IC8 : M35014-001SP Q34,35,37,45,48,49
IC27 : NJM4565M Q38,39
IC28 : TC9210P Q75,76
IC31 : NJU3715G
IC33 : PST993D-T D1
IC34 : M38199MF-066FP D2,10,609
D52
D613
AZ
+5V
1.8V
C106
0.01
4.6V
4.3V 4.7V
5.0V
1.8V 32
SIF
2.1V 31
30
WRITE
ACOM
29
DCO
PES LPFA LFPB
4.7V 28
1.9V 27
26
SSQ 25
1.9V
24
BCP DAC
23
DCOVDD
22
READ
21
DCOGND
20
DAGND
1.6V 19
18
DAVDD
17
1.9V
Q17-19 AMP
+5V
5.0V
5.0V
Q19
Q16
C100
0.9V 10P
0V
L50 L49
0.3V Q18 Q17 R116
22uH 10uH
R118 560
1.2K
0.2V
0.2V
-0.5V
+5V
: UN5112 or DTA124EU
: 2SC4081(R,S)
: 2SC2714(O,Y)
: 2SA1576(R,S)
: 2SC2003(L,K)
: UN5112 or DTA1576(R,S)
: DA204U
: 1SS33 or HSS104
: DAP202U
: MA110
SIGNAL LINE
GND LINE
+B LINE
+B
-B LINE
-B
BA
CAUTION: For continued safety,
replace safety critical components only
with manufacturer's recommended
parts (refer to parts list).
safety critical components. For contin -
ued 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 insulat -
ed from the supply circuit) before the
appliance is returned to the customer.
The DC voltage is an actual reading
R82 470
measured with a high impedance type
voltmeter. The measurement value
may vary depending on the measuring
instruments used or on the product.
Refer to the voltage during LD PLAY
unless otherwise specified; The value
shown in ( ) is the voltage measured
at the moment of STOP. The voltage
CF1
14.3MHz
followed by (CD) refers to the value
R80
150
during CD PLAY.
R83 C75
2.2K 22P
R79 C77
2.4V 1.2K 10P
C78
33P
C103 C95
33P 18P
1.8V
C79 0.01
L14
56uH
1.0V
4.7V L23
+5V
220uH
1.3V
+
X35
-CN1
3/4
+
F
4.9V
+5V
0.8V
X35
-CN2
3/4
G
5.0V
0.7V
X13-A/2
-CN1
BUFFER
4/4
H
X13-A/2
+5V
-CN2
4/4
I
X25-C/6
-WH1
4/4
L
X25-A/6
-CN1
4/4
M
W02
-CN202
4/4
N
LD-K300(M) (2/4)
Y22-7123-00
BB BC
indicates
LD-K300V