Read Sharp SD-AT1000 (serv.man16) Service Manual online
SD-AT1000
– 52 –
IC701 RH-iX0558AWZZ: System Microcomputer (IX0558AW) (2/2)
Input/Output
Port Name
Pin No.
Function
Terminal Name
44
P54/FLD44
STEREO_LED
Output
Stereo indicator. "H" (OPEN): OFF "L": ON
45
P53/FLD43
COD_DO
Input/Output
Codec data output.
46
P52/FLD42
COD_DI
Output
Codec data input.
47
P51/FLD41
COD_CLK
Output
Codec clock output.
48
P50/FLD40
COD_CSN
Output
Codec chip select.
49
P47/FLD39
VOL_DA
Output
Data and latch output for electronic.
50
P46/FLD38
VOL_CL
Output
CLK output for electronic VOL IC control signal.
51
P45/FLD37
DIG_FUNC +B
Output
Ext DIG IN ON/OFF control. H: DIG IN ON
52
P44/FLD36
NON_PCM
Input
Audio PCM monitoring input.
"L": AUDIO PCM "H": NON AUDIO PCM
"L": AUDIO PCM "H": NON AUDIO PCM
53
P43/FLD35
AC_RLY
Output
Main trans ON/OFF control by relay.
54
P42/FLD34
SP_RLY
Output
Speaker output control by relay. H: RELAY ON
55
P41/FLD33
CONFIG
Output
Config setting output subwoofer.
"YES" (CONFIG1) WITH "H"
"NO" (CONFIG2) WITH "L"
"YES" (CONFIG1) WITH "H"
"NO" (CONFIG2) WITH "L"
56
P40/FLD32
BASS_SW
Output
Subwoofer amp gain control output.
"H": BASS OFF "L": BASS ON
"H": BASS OFF "L": BASS ON
57*
P37/FLD31
NO USE
Input
Not used.
58-73
P36/FLD30-P07/FLD15
SEG16-SEG1
Output
FL segment.
74-80
P06/FLD14-P00/FLD8
DIG15-DIG9
Output
FL digit driver.
81-88
P27/FLD7-P20/FLD0
DIG8-DIG1
Output
FL digit driver.
89
VEE
VEE
Input
VLOAD -35 V.
90
PB6/SIN1
L_MUTE
Output
VCR out audio mute output. H: MUTE ON L: MUTE OFF
91
PB5/SOUT1
W_S_MUTE
Output
Subwoofer speaker S-MUTE output.
"H": MUTE ON "L": MUTE OFF
"H": MUTE ON "L": MUTE OFF
92
PB4/SCLK11
F_S_MUTE
Output
Front speaker S-MUTE output.
"H": MUTE ON "L": MUTE OFF
"H": MUTE ON "L": MUTE OFF
93
PB3/SSYB1
C_S_MUTE
Output
Center speaker S-MUTE output.
"H": MUTE ON "L": MUTE OFF
"H": MUTE ON "L": MUTE OFF
94
PB2/SBUSY1
S_S_MUTE
Output
Surround speaker S-MUTE output.
"H": MUTE ON "L": MUTE OFF
"H": MUTE ON "L": MUTE OFF
95
PB1/SRDY1
S_MUTE
Output
Audio mute output. H: MUTE ON
96
PB0/SCLK12/SVIN/DA
TIMER_LED
Output
Timer stand-by LED. "H": ON "L": OFF
97
AVSS
GND
Input
A/D analog GND.
98
VREF
VREF
Input
A/D reference voltage 5 V.
99
PA7/AN7
AREA
Input
A/D input, destination setting input.
H: AUDTTION MODEL L: NORMAL
H: AUDTTION MODEL L: NORMAL
100
PA6/AN6
KEY1
Input
A/D input, main set key.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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