Sharp SD-AT1000 Service Manual page 52

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