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.
Terminal Name Input/Output
STEREO_LED
COD_DO Input/Output
COD_DI
COD_CLK
COD_CSN
VOL_DA
VOL_CL
DIG_FUNC +B
NON_PCM
AC_RLY
SP_RLY
CONFIG
BASS_SW
NO USE
SEG16-SEG1
DIG15-DIG9
DIG8-DIG1
VEE
L_MUTE
W_S_MUTE
F_S_MUTE
C_S_MUTE
S_S_MUTE
S_MUTE
TIMER_LED
GND
VREF
AREA
KEY1
– 52 –
Output Stereo indicator. "H" (OPEN): OFF
Codec data output.
Output Codec data input.
Output Codec clock output.
Output Codec chip select.
Output Data and latch output for electronic.
Output CLK output for electronic VOL IC control signal.
Output Ext DIG IN ON/OFF control. H: DIG IN ON
Input Audio PCM monitoring input.
"L": AUDIO PCM
Output Main trans ON/OFF control by relay.
Output Speaker output control by relay. H: RELAY ON
Output Config setting output subwoofer.
"YES" (CONFIG1) WITH "H"
"NO" (CONFIG2) WITH "L"
Output Subwoofer amp gain control output.
"H": BASS OFF
Input Not used.
Output FL segment.
Output FL digit driver.
Output FL digit driver.
Input VLOAD -35 V.
Output VCR out audio mute output. H: MUTE ON
Output Subwoofer speaker S-MUTE output.
"H": MUTE ON
Output Front speaker S-MUTE output.
"H": MUTE ON
Output Center speaker S-MUTE output.
"H": MUTE ON
Output Surround speaker S-MUTE output.
"H": MUTE ON
Output Audio mute output. H: MUTE ON
Output Timer stand-by LED. "H": ON
Input A/D analog GND.
Input A/D reference voltage 5 V.
Input A/D input, destination setting input.
H: AUDTTION MODEL
Input A/D input, main set key.
Function
"L": ON
"H": NON AUDIO PCM
"L": BASS ON
L: MUTE OFF
"L": MUTE OFF
"L": MUTE OFF
"L": MUTE OFF
"L": MUTE OFF
"L": OFF
L: NORMAL