Sony RM-VZ950T, Service Manual

Page: 31 / 35

– 33 –
– 34 –
• Waveforms
– REMOTE CONTROL Board –
1 IC1
yl
(X2)
1V/DIV, 50 ns/DIV
2
IC5
4
(LX)
1V/DIV, 5 µs/DIV
3.9 Vp-p
200 ns
4.6 Vp-p
11.4
µ
s
• IC Block Diagrams
IC2 NJU6424FG1-T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
58
57
56
55
54
53
52
51
72
71
70
69
68
67
66
65
75
74
73
64
63
62
61
60
59
SEGMENT
SIGNAL
DRIVER
50BIT
LATCH
CIRCUIT
CHARACTOR
GENERATOR
9600BIT
CHARACTOR
GENERATOR
32 X 5BIT
50BIT
SHIFT
REGISTER
TIMING
GENERATOR
CIRCUIT
PARALLEL/SERIAL
CONVERTER
CIRCUIT
COMMON
SIGNAL
DRIVER
26BIT
SHIFT
REGISTER
CURSOR
BLINK
CONTROL
CIRCUIT
DATA
REGISTER
DISPLAY DATA RAM
30 X 8BITS
26
BIAS
CIRCUIT
CR OSCILLATOR
CIRCUIT
BOOSTER
CIRCUIT
27
RESET
CIRCUIT
39 40 41 42 43 44 45 46 47 48 49 50 28
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
29 30 31 38 33 34 32 35 36 37
ADDRESS
COUNTER INSTRUCTION
DECODER
INSTRUCTION
REGISTER
BUSY
FLAG
IN/OUT BUFFER
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
COMMK2
COM24
COM23
COM22
COM21
COM20
COM19
COM18
COM17
COM8
COM7
COM6
COM5
COM4
COM3
COM2
COM1
C
OMMK1
BIAS
RESET
RS
R/W
E
DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7
OSC2 OSC1
V5
VSS C2
–
C2+
V5OUT
C1
–
C1+
VCI
VDD
COM16
COM15
COM14
COM13
COM12
COM11
COM10
COM9
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG4
2
SEG41 SEG4
0
SEG3
9
SEG3
8
SEG3
7
SEG3
6
SEG3
5
SEG3
4
SEG3
3
SEG3
2
SEG31 SEG3
0
SEG2
9
SEG2
8
SEG2
7
SEG2
6
SEG2
5
SEG2
4
SEG2
3
SEG2
2
SEG21 SEG2
0
SEG1
9
SEG1
8
IC5 XC6372C361PR-T
NC
VOUT
CE
VSS
LX
2
1
3
4
5
VLX
LIMITER
PWM/PFM
CONTROL
OSC 100kHz
BUFFER
PHASE
COMPARATOR
REFERENCE
VOLTAGE
CHIP
ENABLE
SLOW
START
+
–
VDD