Read Sony CDX-805 Service Manual online
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Pin No.
Pin Name
I/O
Function
4-6.
IC PIN FUNCTON DESCRIPTION
MAIN BOARD
IC201 CXP84332-054Q (SYSTEM CONTROLLER)
1-3
–
O
Not used
4
CH. F
O
5
CH. R
O
6
LOAD2
I
Input of LOAD IN switch
7
LOAD1
I
Input of LOAD OUT switch
8
SENS2
I
Input of sense signal from CXA1992AR (IC11) and CXD2530Q (IC101)
9
LIM. SW
I
Input of limit switch
10
EE. INIT
I
Input of initialize signal from E
2
PROM (IC202)
“H” : Format
11
EE. CLK
O
Output of clock signal to E
2
PROM (IC202)
12
EE. DATA
I/O
Input/output of data signal to E
2
PROM (IC202)
13-19
–
O
Not used
20
SINGLE
I
Selection of single mode
“L” : Single CD playing
21
XRST
O
Output of reset signal to peripheral servo IC
22
FOK
I
Input of focus OK signal form CXA1992AR (IC11) and CXD2530Q (IC101)
23
SENS
I
Input of sense signal from CXA1992AR (IC11) and CXD2530Q (IC101)
24
GFS
I
Input of guard frame sync signal from CXD2530Q (IC101)
25
GRSRST
O
Output of GRSCOR reset pulse to CXD2522Q (IC401)
26
XQOK
O
Output of subcode Q OK pulse to CXD2522Q (IC401)
27
SDIT
I
Input of ESP status signal from CXD2522Q (IC401)
28
XSOE
O
Output of ESP status read enable signal to CXD2522Q (IC401)
29
ESPXLT
O
Output of ESP latch pulse to CXD2522Q (IC401)
30
RST
I
Input of system reset signal
“L” : Reset
31
EXTAL
I
Input of system clock (8 MHz)
32
XTAL
O
Output of system clock (8 MHz)
33
VSS
–
Ground pin
34
TX
–
Not used
35
TEX
–
Not used
36
AVSS
–
Ground pin of A/D converter
37
AVREF
I
Input of A/D converter reference voltage
38
MCK
I
Input of signal for fine adjustment of elevator position
39
EHS
I
Input of elevator height detection voltage (RV202)
40
H. TEMP
I
Input of high temperature detection signal
41
XRDE
O
Output of DRAM read enable signal
42
XWRE
O
Output of DRAM write enable signal
43
A. MUTE
O
Output of audio output mute on/off control signal
“H” : Mute on
44
EMP
O
Output of emphasis mode for disc playing
“L” : on
45
ML
O
Selection of fast speed dubbing
“L” : Fast speed
46
GRSCOR
I
Input of GRSCOR from CXD2522Q (CI401)
47
D/A. RESET
O
Output of reset signal to D/A converter (IC601)
48
SCK
I
Input of serial clock signal from SONY bus interface (IC302)
Output of control
signal to the chucking
motor drive (IC52)
signal to the chucking
motor drive (IC52)
FWD
REV
Brake
CH.F
H
L
H
CH.R
L
H
H
Forward : Load chucking
Reverse: Save
Reverse: Save
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