Read Sony CDX-C860 / CDX-C860RDS Service Manual online
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• IC505 µPD78058GC-452-3B9 (DSP SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1, 2
NIL
I
Connect to GND.
3
TIR IND
O
TIR indicator output
4
GND
—
GND for A/D conversion.
5
DSPMUTE
O
Audio data output mute control of DSP IC.
6
LCD ANGL
O
Output for LCD view angle adjustment. (Connect to GND.)
7
AVREF
—
Reference voltage for D/A conversion.
8
LCDCE
O
LCD serial chip enable output
9
LCDSO
O
LCD serial data output
10
LCDCKO
O
LCD serial clock output
11
DSPSI
I
DSP serial data input
12
DSPSO
O
DSP serial data output
13
DSPCKO
O
DSP serial clock output
14
DSPCE
O
DSP signal process IC strobe control signal output
15
DSPBUSY
I
DSP signal process IC busy signal input
16
UNISI
I
Serial data input
17
UNISO
O
Serial data output
18
UNICKI
I
Serial clock input
19
NCO
O
Not used.
20
LINKOFF
O
Link off output (Not used.)
21
BST
O
Built-in amplifier boost control output
22 – 25
NCO
—
Not used.
26
C PDN
O
Codec IC power down output
27
C CLK
O
Codec IC clock output
28
C CE
O
Codec IC chip enable output
29
C SO
O
Codec IC serial data output
30
C SI
I
Codec IC serial clock input
31
ILLON
O
Illumination power control output
32
NIL
I
Connect to GND.
33
VSS
—
GND for microcomputer.
34 – 39
NIL
I
Connect to GND.
40
A MUTE
O
Audio mute control output
41
AMPMUTE
O
Power amplifier mute control output
42, 43
NIL
I
Connect to GND.
44
EECKO
O
EEPROM clock output
45
EESIO
I/O
EEPROM serial data input/output
46 – 54
NIL
I
Connect to GND.
55
AMP REM
O
AMP REM control output
56
LCD ON
O
LCD power control output
57
AMPON
O
COM + 8 V power control output
58
DSPON
O
P.ON + 5 V power control output
59
PWONIN
I
System power control input
60
RESET
I
Reset input
61
PCPIN
I
PLL phase comparator error detection input
62
BU.IN
I
Back-up power detection input
63
NIL
I
Connect to GND.
64
BUSON
I
BUS.ON control output
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