Samsung STR-DE1075, Service Manual

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STR-DE1075
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DIGITAL BOARD IC1408 LC89056W-E (DIGITAL AUDIO INTERFACE RECEIVER)
Pin No. Pin Name I/O Description
1 DISEL I Input data select terminal (fixed at “L”)
2 DOUT O EIAJ data and parity output terminal Not used (open)
3 DIN0 I Amp integrate data input from the select switch (IC1406)
4 DIN1 O Amp integrate data input terminal Not used (fixed at “L”)
5 DIN2 I Amp integrate data input terminal Not used (fixed at “L”)
6 DGND — Ground terminal (for digital)
7 DVDD — Power supply terminal (+5V) (for digital)
8 R I Input terminal for VCO generator band adjustment
9 VIN I Input terminal for VCO self running frequency set
10 LPF O External LPF for PLL is connected to this terminal
11 AVDD — Power supply terminal (+5V) (for analog)
12 AGND — Ground terminal (for analog)
13 CKOUT O Clock signal output to the audio DSP1, 2 (IC1501, 1601)
14 BCK O Bit clock signal output to the A/D converter (IC1101) and audio DSP1 (IC1501)
15 LRCK O
L/R sampling clock signal output to the A/D converter (IC1101) and audio DSP1, 2
(IC1501, 1601)
16 DATAO O Audio data output to the system controller (IC1703) and audio DSP1 (IC1501)
17 XSTATE O Clock status flag output to the system controller (IC1703)
18 DGND — Ground terminal (for digital)
19 DVDD — Power supply terminal (+5V) (for digital)
20 XMCK O Clock signal outout to the A/D converetr (IC1101) (24.576MHz)
21 XOUT O Clock output terminal Not used (open)
22 XIN I Clock input from the clock oscillator (IC1410) (24.576MHz)
23 EMPHA O Emphasis monitor output terminal “H”: on Not used (open)
24 AUDIO O Audio transfer signal output to the audio DSP1 (IC1501)
25 CSFLAG O Not used (open)
26 to 29
F0/P0/C0 to F3/P3/C3
O Terminal for check Not used (open)
30 DVDD — Power supply terminal (+5V) (for digital)
31 DGND — Ground terminal (for digital)
32 AUTO O Not used (open)
33 BPSYNC O Not used (open)
34 ERROR O Error mute output to the system controller (IC1703) and audio DSP1 (IC1501)
35 DO O Data output to the system controller (IC1703)
36 DI I Data input from the system controller (IC1703)
37
CE I
Chip enable signal input from the system controller (IC1703)
38
CLK I
Clock signal input from the system controller (IC1703)
39
XSEL I
Clock select terminal (fixed at “H”)
40, 41
MODE0, MODE1 I
Mode setting input terminal (fixed at “L”)
42
DGND —
Ground terminal (for digital)
43
DVDD —
Power supply terminal (+5V) (for digital)
44, 45
DOSEL0, DOSEL1 I
Data format select signal input terminal (fixed at “L”)
46
CKSEL0 I
System clock select signal input terminal (fixed at “L”)
47
CKSEL1 I
System clock select signal input from the system controller (IC1703)
48
XMODE I
Reset signal input from the system controller (IC1703)