Kenwood LD-K300V Service Manual page 10

AE AF
(X34-1033-00)(2/2)
( RF )
( RF GND )
( )
V OUT
( L )
1
X34-1/2 ( F )
( B )
( G )
1/4
( )
N
E
( +5V ) +5V
( )
GND
( -5V ) -5V
( uGND )
( )
+14V +14V
( 14V GND )
( -14V ) -14V
2
+5V
SLIDER
MOTOR
1/4
CN4
3
2
SLDMO
A
SLDRTN 1
X25-E/6
CN5
-WH4
5.0V
1
TILTOUT
1/4
+5V 2 +5V
R342 R341
CLOSE SW 3
4.7K 4.7K
C
OPEN SW 4
R614
U GND 5
2.2K
0.2V
LDRTN 6
LDMO 7
Q61
INVERTER
CN6 (TILTOUT)
4 -29V 13 -29V
F- 12 12
F+ 11 11
BRK 10 60
ACC 9 59
MTRTN 8
N -5V 7 -5V
5V GND 6
+
+5V 5 +5V
+
NC 4
-14V 3 -14V
14V GND 2
+14V 1 +14V
5
+ +
+
+
6
7
AG AH
-8V -8V
+8V +8V
-5V -5V
-29V -29V
( 90 )
+5V
5.0V
5.0V
INVERTER
(L MUTE)
Q68
0V
Q76
D613
4.9V
9
C603 0.01
IC31
5.0V
1 22 5.0V
( 8 ) 1/L 5.0V VCC +5V
2 21
0V
( 9 ) 2/R SLDON 21
3 20
0V 5.0V
( )
10 CX 5.0V TILTON 20
4 19 5.0V
( 47 ) D/A V/A 19
0V 5 18 5.0V
( 27 ) K/N M OPEN 18
4
17
5.0V
M CLOSE 17
93
6 16 0V
VSS LASER 16
7 15 5.0V R605 100
CLB
8
0V C606 1000P
EMPH
9 14
5.0V
4.9V
NC STB
0V 10 13 4.7V
NT/PAL CLK
11 12 2.3V
V MUTE DATA
0V
EXPANDER
(SFRIAL PALAREL)
4.6V IC4 0.3V
5.0V
1 22
XIN VDD
5.0V
R90
1K 2 21
XOUT DATA
3 20
DOCINH I/O 0
4 19
VSYNC I/O 1
5 18
HSYNC I/O 2
6 17
IRQ I/O 3
5.0V 7 16
( 37 ) STB CSB
8 15
5.0V 4.9V
( 36 ) ATN TX//RX
5.0V 9 14 4.9V
( )
41 D3 ACK
4.9V 10 13 5.0V
( 43 ) D1 D2
11 12
VSS D0
5.0V
PHILIPS
CODE DECODER
+5V
AI AJ
-8V
+8V
-5V
-29V
C604 0.01 C609
+
0V
100u35
+5V +5V
R617
-27.8V 4.9V
1K
( )
95
C612
C608 R632
100u10 10K
4.9V 0.01
+
2.53V
1
DOSINH
0V 2
NRCONT
4.9V 0V
3
( )
25 3 CD LDSW
3.0V
4
( 4 ) TRAYSW
4.9V 5
( 5 ) MIC1/b
0V 6
( )
6 MIC2/
0V
7
( 7 ) SLD+
0V
8
( 8 ) SLD-
0V 9
( 9 ) S DATA
0V
10
( )
10 S BUSY
4.9V
11
STB(NJM3751)
1.6V 12
( 12 ) CLOCK
0V
13
( )
13 C DATA
1.6V
14
( 14 ) M DATA
U-COM
0V 15
( )
15 RWC
4.9V
16
(
16 ) CQCK
4.9V
17
( 17 ) COIN
0V 18
( 18 ) SQOUT
3.7V 19
CS(OSD)
4.7V
20
OSD
SCLK
PD
( 20 )
4.3V 21
SPDATA
( )
21
4.9V
22
( 22 ) SLATCH(PDO192)
( 23 )
4.9V 23
( 23 ) IC RESET
2.6V
24
( 24 ) TCOUNT
4.9V
25
4DSW
R631 100K
0.2V 26
RESENS
4.9V 27 4.9V
( )
27 IFL(TC9409BF)
4.9V
28 4.9V
( 28 ) C BUSY
1.5V 4.9V 4.9V
29 4.9V 2.3V 2.4V
( 29 ) M BUSY
4.6V 30
VSYNC
0.6V
R607
1M
( 31 )
( 23 )
4.9V
R623
IC33
1 3 100
RESET
IN OUT
X3
IC
GND 8MHz
+
5.0V 2 4.9V
+5V
AK AL
-8V
+8V
-5V
-29V
( )
35
+5V +5V
2.6V
R635
220 D27
0V
-27.7V
0V R637
220
80
4.9V
Sm 80
R638 220
79
Sl 79
-27.7V
R639 220
78
Sk 78
-22.0V
R640 220
77
Sj 77
-21.7V
R641 220
76
Si 76
-13.6V
R642 220
75
Sh 75
-17.3V
R643 220
74
Sg 74
-17.6V
R644 220
73
Sn 73
-13.8V
R645 220
72
Sa 72
-12.5V
R646 220.
71
Sb 71
-27.6V
R647 220
70
Sc 70
-27.6V
IC34
R648 220
69
Sd 69
-22.0V
R649 220
68
Se 68
-12.0V
R650 220
67
Sf 67
-19.3V
Q77~80
66
ON:
LED DRIVE
65 3.3V
OFF:
R651 220
64
-27.7V
So 64
-27.7V
63
Q77 Q78 Q79
-27.7V
62
LED
61 -27.7V
LEDb
60 -27.7V
LED
ON: ON:
59
2.4V 2.4V
OFF: OFF:
58
-27.7V -27.7V
57
56
G8
-24.8V
R652 220
55
G7 55
R653 220
54
G6 54
R654 220
4.9V 53
G5 53
R655 220
52
G4 52
-27.5V
-24.8V R656 220
51
G3 51
+5V +5V
1 2 3 4 5 6 7 8 9 10 11
CN12
G
AM AN
-8V
+8V
-5V
+5V
MIC
MIXING AMP.
Q45
C585
0.1
0V
4.9V
MIC
MUTE
5.0V
C504
100u10 L24
+ 1uH
Q80
ON:
2.4V
OFF:
-27.7V
4.9V
C584
0.1
Q49
0V
R442
3.3K
+5V +5V
1 2 3 4 5 6 7
CN13
F