Read Sharp XL-70 (serv.man19) Service Manual online
XL-60H/70H
– 50 –
83
DVDD
—
D/A converting section power terminal.
84
DVR
—
Reference voltage terminal.
85
LO
Output
L channel data forward rotation output terminal.
86
DVSL
—
L channel D/A converting section power terminal.
87*
TEST1
Input
Test mode terminal. To be opened usually.
88*
TEST2
Input
Test mode terminal. To be opened usually.
89*
TEST3
Input
Test mode terminal. To be opened usually.
90-93
BUS0-BUS3
Input/Output
Microcomputer interface data input/output terminal.
94
VDD
—
Digital + power terminal.
95
VSS
—
Digital ground terminal.
96
BUCK
Input
Microcomputer interface clock input terminal.
97
/CCE
Input
Microcomputer interface chip enable signal input terminal. "L": BUS0 to 3 is active.
98*
TEST4
Input
Test mode termina. To be opened usually.
99*
/TSMOD
Input
Local test mode selection terminal.
100
/RST
Input
Reset signal input terminal. "L": Reset.
IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (3/3)
Pin No.
Port Name
Function
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Figure 50 BLOCK DIAGRAM OF IC
IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F)
2
3
4
5
1
7
8
9
6
12
13
14
15
11
17
18
19
10
16
22
23
24
25
21
27
28
29
20
30
26
42
43
44
45
41
47
48
49
50
46
32
33
34
35
31
37
38
39
40
36
89
88
87
86
90
84
83
82
81
85
99
98
97
96
100
94
93
92
91
95
72
73
74
75
71
77
78
79
70
80
76
62
63
64
65
61
67
68
69
60
66
52
53
54
55
51
57
58
59
56
LPF
1Bit
DAC
Microcomputer
interface
Correction
circuit
Audio output
circuit
Digital
out
16KRAM
Sub-code
demodulation
circuit
Status
PLL
TMAX
VCO
Data
slicer
CLV
servo
D/A
PWM
Servo control
ROM
RAM
Digital equalizer
adjustment circuit
Address
circuit
Clock
generator
/RST
/TSMOD
TEST4
/CCE
BUCK
VSS
VDD
BUS3
BUS2
BUS1
BUS0
TEST3
TEST2
TEST1
DVSL
LO
DVR
DVDD
RO
DVSR
LPFN
LPFO
PVREF
VCOREF
VCOF
AVSS
SLCO
RFI
AVDD
RFCT
RFZI
RFRP
FEI
SBAD
TSIN
TEI
TEZI
FOO
TRO
VREF
TMAX
TMAXS
PDO
ZDET
HSSW
P2VREF
TESIO0
VDD
MONIT
COFS
SPDA
SPCK
SBSY
SFSY
DATA
VSS
VDD
CLCK
SBOK
IPF
MBOV
DOUT
AOUT
BCK
VSS
LRCK
EMPH
/UHSO
/HSO
TEST0
RFGC
TEBC
FMO
FVO
DMO
2VREF
SEL
FLGA
FLGB
FLGC
FLGD
VDD
VSS
IO0
IO1
IO2
IO3
/DMOUT
/CKSE
/DACT
TESIN
TESIO1
VSS
PXI
PXO
VDD
XVSS
XI
XO
XVDD
Synchronizing
signal guarantee
EFM demodulation
A/D
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