CD-ES222E (serv.man4). Troubleshooting, Function table of IC, FL display, Replacement exploded view. - Sharp Audio Service Manual (repair manual). Page 6

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CD-ES222H/ES222E
– 48 –
44
RVSS
GND for Right channel. Must be connected to 0 V.
45
RCHO
Output
LVDD /2
Right channel output.
46
RVDD
Input
Power supply for Right channel.
47
XVDD
Input
Power supply for crystal oscillator.
48
XOUT
Output
Oscillator
Connected for the 33.8688 MHz crystal oscillator ciement.
49
XIN
Input
Oscillator
50
FSX/16MIN
Input/Output
Input
7.35 kHz Synchronization signal monitor port.
or Clock input port for Digital filter & D/A
51
XVSS
Crystal
GND for crystal oscillator. Must be connected to 0 V.
Oscillator
52*
C2F
Output
H
C2 FLAG monitor port.
53*
EFLG
Output
L
C1, C2 error corrected  monitor port.
54*
16MOUT
Output
Clock
16.9344 MHz output port.
55
ASLRCK
Input
Left/Right clock input port.
(If this port does not use, must be connect to 0 V.)
56
ASDACK
Input
Bit clock input port.
(If this port does not use, must be connect to 0 V.)
57
ASDFIN
Input
Left/Right channel data input port.
(If this port does not use, must be connect to 0 V.)
58*
LRCK
Output
L
Left/Right clock output port.
59*
BCK
Output
L
Digital data
Bit clock output port.
60*
DATA
Output
L
Left/Right channel data output port.
61
CE
Input
Chip enable signal input port.
62
CL
Input
Microcomputer
Data transfer clock input port.
63
DI
Input
Interface
Data input port.
64
DO
Output
(H)
Data output port. (N-ch. open drain output.)
65
*WRQ
Output
H
Interruption signal output.
66
*RES
Input
Chip reset signal input port.
This port must be set LOW after first applied power on.
67
DRF
Output
L
Focus detection output port.
68
VDD5
Input
Power supply for Microprocessor.
69
VSS
GND for digital circuit. Must be connected to 0 V.
70
CONT3
Input/Output
Input
General purpose port 3.
71
CONT2
Input/Output
Input
General purpose port 2.
72*
CONT1
Input/Output
Input
General purpose port 1.
73
PDO1
Output
Internal VCO control phase comparator output port 1.
74
PDO2
Output
Input
Internal VCO control phase comparator output port 2.
75
VVSS
GND for internal VCO. Must be connected to 0 V.
76
PCKIST
Input
PDO output current adjustment resistor connection port.
77
VVDD
Input
Power supply for internal VCO.
78
FR
Input
VCO frequency range adjustment port.
79
LDS
Input
LASER power detected signal input port.
80
LDD
Output
LASER power control signal output port.
IC401  VHiLC78646E-1: Servo/Signal Control (LC78646E) (2/2)
Pin No.
Function
Terminal Name Input/Output Setting in Reset
Right channel
D/A converter
Anti-shock
Controlled with serial data command from micro-
computer. When not used, General purpose input/
output terminal. Set it as the input terminal and open
it by connecting to 0 V, or set it as the output terminal
and open it.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Be sure to supply the same potential to each power terminal. (VVDD, ADAVDD, VDD, LVDD, RVDD, XVDD)
Terminal witch is controlled by the power terminal (VDD5 V) for a microcomputer interface :
CE (61 pin), CL (62 pin), DI (63 pin), DO (64 pin), WRQ (65 pin), RES (66 pin), DRF (67 pin)
Crystal
Oscillator
PLL
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