Samsung STR-DE1075 Service Manual page 58

STR-DE1075
Pin No. Pin Name
PM1
90
ADC : RST
91
DACINT
92
93 DA1LAT
(PG3) DACCLK
94
(PG4) DACDI
95
(PG5) 2EXLOCK
96
97 VCC
VSS
98
EEPROM SDA
99
EEPROM SCL
100
101 VSS
HCLK
102
HDIN
103
HDOUT2
104
105 CLK
DATA
106
LAT
107
DAIDO
108
109 SOTI
SIN1
110
CLK
111
DIN
112
113 LAT
CLR
114
VOL IC LAT
115
SYSTEM MUTE
116
117 AC MUTE
PROTECTOR
118
DA2LAT
119
CD DIRECT
120
ANALOG DIGITAL
121
VCC
122
A. DIRECT
123
NC
124
125 NC
DAVS
126
DAVC
127
AVCC
128
129 AVRH
AVRL
130
AVSS
131
132 AD1
133 AD2
58
I/O
O
PLL initialize signal output to the audio DSP1 (IC1501)
O
Reset signal output to the A/D converter (IC1101)
O
Reset signal output to the D/A converter (IC1201)
O Serial data latch pulse output to the D/A converter (IC1201)
O
Serial data transfer clock signal output to the D/A converter (IC1201, 1202)
O
Serial date output to the D/A converter (IC1201, 1202)
O
Extarnal lock signal output to the audio DSP2 (IC1601)
— Power supply terminal (+3.3V)
—
Ground terminal
I/O
Two-way data bus with the EEPROM (IC1701)
O
Serial data transfer clock signal output to the EEPROM (IC1701)
— Ground terminal
O
Host clock signal output to the audio DSP1, 2 (IC1501, 1601)
O
Host serial data output to the audio DSP1, 2 (IC1501, 1601)
I
Host serial data input from the audio DSP2 (IC1601)
O OSD serial data transfer clock signal output to the select switch (IC307)
O
OSD serial data output to the select switch (IC307)
O
OSD serial data latch pulse output to the select switch (IC307)
I
Serial data input from the D/A converter (IC1201)
O UART signal output terminal Not used (fixed at "L")
I
UART signal input terminal Not used (fixed at "L")
O
Serial data transfer clock signal output to the FL display driver (IC1601)
O
Serial data output to the FL display driver (IC1601)
O Serial data latch pulse output to the FL display driver (IC1601)
O
Clear signal output to the FL display driver (IC1601)
O
Serial data latch pulse output to the electrical volume (IC401, 501, 601, 701)
O
System muting control signal output terminal
O Audio muting control signal output to the poweramp (IC403, 503, 603)
I
Over load detection signal input from the protect circuit "L": protect detect
O
Serial data latch pulse output to the A/D, D/A converter (IC1202)
O
CD direct relay drive signal output terminal Not used (open)
Analog/digital select signal output to the TC7WH157FU (IC1407)
O
"L": analog, "H": digital
—
Power supply terminal (+3.3V)
O
MULT/2CH DIRECT select signal output terminal Not used (open)
—
Not used (open)
— Not used (open)
—
Ground terminal (for digital)
—
Power supply terminal (+3.3V) (for digital)
—
Power supply terminal (+3.3V) (for analog)
— Reference voltage input (+3.3V) terminal (for analog)
—
Connect to ground (for analog)
—
Ground terminal (for terminal)
Key input terminal (A/D input) S1681 to 1685, S1702 to 1704 (AM, FM, FM MODE,
I
SHIFT, MEMORY, DISPLAY, ON SCREEN, DIMMER)
Key input terminal (A/D input) S1651 to 1658 (LEVEL, SURR, EQ, <, PRESET TUNING –
I
/+, TUNING +/–)
Description