58
HCD-VX555/VX555J
6-29. IC BLOCK DIAGRAMS
IC11
LA1845 (MAIN BOARD)
IC51
LC72131 (MAIN BOARD)
IC105 BU4052BCF-E2 (MAIN BOARD)
IC302
µ
PC1330HA (MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
23
24
S-CURVE
AM/FM
IF
BUFF
COMP
TUNING
DRIVE
AM
OSC
AM
MIX
AM
PF.AMP
AGC
AM
IF
AM
DET
BUFF
LEVEL
DET
FM
IF
FM
DET
REG
GND
DEOODER
ANTI-BIRDIE
P-DET
ø
PILOT
CANCEL
STEREO
SW
VCO
304kHz
FF
38k
FF
19k
π
2
FF
19k
0
PILOT
DET
V
CC
ALC
PHASE
DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16, 1/17 4BITS
12BITS
PROGRAMMABLE
DRIVER
UNIVERSAL
COUNTER
REFERENCE
DIVIDER
POWER
ON
RESET
1/2
CCB
INTERFACE
1
2 3 4 5
6 7 8 9
16
15
14
13
12
11
10
17
18
19
20
XOUT
VSS
AOUT
AIN
PD
VDD
FMIN
AMIN
XIN
DO
CL
DI
CE
IFIN
IO1
BO4
BO3
BO2
BO1
IO2
UNLOCK
DETECTOR
DATA SHIFT REGISTER LATCH
1
5
2
4
3
6
7
8
SELECT A
SELECT B
3
2
1
0
3
2
1
0
INH
Y1
Y3
Y
Y1
Y0
VEE
VSS
X3
X0
X
X1
X2
VDD
A
B
9
12
14
15
11
16
13
10
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1 CONT
GND
VCC
SW P2 GND
SW R2
Summary of Contents for HCD-VX555
Page 35: ...35 35 HCD VX555 VX555J 6 11 SCHEMATIC DIAGRAM AMP SECTION ...
Page 39: ...39 39 HCD VX555 VX555J 6 15 SCHEMATIC DIAGRAM PANEL SW SECTION ...
Page 41: ...41 41 HCD VX555 VX555J 6 17 SCHEMATIC DIAGRAM LEAF SW SECTION ...
Page 46: ...46 46 HCD VX555 VX555J 6 22 SCHEMATIC DIAGRAM VIDEO SECTION 2 3 See page 23 for Wavefoms ...
Page 47: ...47 47 HCD VX555 VX555J 6 23 SCHEMATIC DIAGRAM VIDEO SECTION 3 3 See page 23 for Wavefoms ...
Page 49: ...49 49 HCD VX555 VX555J 6 25 SCHEMATIC DIAGRAM TRANS SECTION ...
