JVC CH-X400 Service Manual page 33

2.Pin Function
Symbol
Pin No. I/O
40
RFCT I
41
RFZI I
42
RFRP I
43
FEI I
44
SBAD I
45
TSIN I
46
TEI I
47
TEZI I
48
FOO O
49
TRO O
50
VREF -
51
RFGC O
52
TEBC O
53
FMO O
54
FVO O
55
DMO O
56
2VREF -
57
SEL O
58~61
FLGA~D O
62
VDD -
63
VSS -
64~67
IO0~3 I/O
68
DMOUT I
69
CKSE I
70
DACT I
71
TESIN I
72
TESIO1 I
73
VSS -
74
PXI I
75
PXO O
76
VDD -
77
XVSS -
78
XI I
79
XO O
80
XVDD -
81
DVSR -
82
RO O
83
DVDD -
84
DVR -
85
LO O
86
DVSL -
87~89
TEST1~3 I
90~93
BUS0~3 I/O
94
VDD -
95
VSS -
96
BUCK I
97
CCE I
98
TEST4 I
99
TSMOD I
100
RST I
RFRP signal center level input terminal
RFRP zero cross input terminal
RF ripple signal input terminal
Focus error signal input terminal
Sub-beam adder signal input terminal
Test input terminal Normally, keep at "vref" level
Tracking error signal input terminal. Take in at tracking servo ON.
Tracking error zero cross input terminal
Focus servo equalizer output terminal
Tracking servo equalizer output terminal
Analog reference voltage supply terminal
RF amplitude adjustment control signal output terminal
Tracking balance control signal output terminal
Feed equalizer output terminal
Speed error signal or feed search equalizer output terminal
Disk equalizer output terminal
Analog double reference voltage supply terminal
APC circuit ON/OFF indication signal output terminal
External flag output terminal for internal signal
Digital power supply voltage terminal
Digital GND terminal
General I/O terminal
This terminal control IO0~IO3 terminal
Normally, keep at open
DAC test mode terminal. Normally, keep at open
Test input terminal, Normally, keep at "L" level
Test input/output terminal. Normally, keep at "L" level
Digital GND terminal
Crystal oscillator connecting input terminal for DSP
Crystal oscillator connecting output terminal for DSP
Digital power supply voltage terminal
Oscillator GND terminal for system clock
Crystal oscillator connecting input terminal for system clock
Crystal oscillator connecting output terminal for system clock
Oscillator power supply voltage terminal for system clock
Analog GND terminal for DA converter (Rch)
R channel data forward output terminal
Analog supply voltage terminal for DA converter
Reference voltage terminal for DA converter
L channel data forward output terminal
Analog GND terminal for DA converter (Lch)
Test mode terminal . Normal keep at open
Micon interface data input/output terminal
Digital power supply voltage terminal
Digital GND terminal
Micon interface clock input terminal
Command and data sending/receiving chip enable signal input terminal
Test mode terminal. Normal, keep at open
Local test mode selection terminal
Reset signal input terminal. Reset at "L" level
Function
(PWM carrier=88.2kHz for DSP, Synchronize to PXO)
CH-X400/CH-X450
TC9462F(2/2)
1-33