DAEWOO NSX T929 Diagram
31
IC DESCRIPTION
IC, LC876596W-5T96
Pin No. Pin Name I/O Description
1 CLK O Common serial clock output.
2 DATA O Common serial data output.
3 STB O Common serial strobe output.
4 CS-RHYTHM O Rhythm IC chip select output.
5 I-RDSDATA I RDS input data (Connected to ground).
6 HP-MUTE I Headphone plug-in detect input (output "L" at HOLD).
7 O-POWER O System power ON / OFF output.
8 PLL-CE O Tuner PLL IC chip enable output.
9 O-MUTE O System mute ON / OFF output.
10 CLK-SHIFT O MICON clock shift output (active low).
11 RESET - System reset.
12 VOL-JOG I Main volume rotary encoder input (AD).
13 MULTI-JOG I Dial jog rotary encoder input (AD).
14 VSS1 - Connected to ground.
15 CF 1 I Oscillator circuit input (9.43MHz).
16 CF 2 O Oscillator circuit output (9.43MHz).
17 VDD1 - Connected to power supply.
18 HOLD I Power supply voltage detect AD input.
19 KEY1 I Key input 1 (AD) (output "L" at HOLD).
20 KEY2 I Key input 2 (AD) (output "L" at HOLD).
21 KEY3 I Key input 3 (AD) (output "L" at HOLD).
22 I-SPEANNA I Spectrum analyzer IC AD input (output "L" at HOLD).
23 I-CDSW I CD mecha switches AD input (output "L" at HOLD).
24 I-DISH I CD turnable sensor input (output "L" at HOLD).
25 I-MIC I MIC input for auto vocal fader (output "L" at HOLD).
26 I-RDSCLK / I-WRQ I Turner RDS clock input (Not used) / CD sensor (output "L" at HOLD & INI).
27 I-TU-SIG / MS I Turner signal (Not used) / music sensor input (output "L" at HOLD).
28 I-TMBASE I Time base clock (8Hz) input (output "L" at HOLD).
29 I-RMC I Remote receiver data input (output "L" at HOLD).
30~42 G13~G1 O FL grid G13~G1 output.
43~45 P39~P37 O FL segment P39~P37 output.
46 VDD3 - Connected to power supply.
47 SPEANA A / P36 O Spectrum analyzer band control A / FL P36 segment output.
48 SPEANA B / P35 O Spectrum analyzer band control B / FL P35 segment output.
49 SPEANA C / P34 O Spectrum analyzer band control C / FL P34 segment output.
50 P33 O FL P33 segment output.
51 VP - Power for FL display.
52~59 P32~P25 O FL P32~P25 segment output.
60 NO AC-DEMO / P24 I/O No AC-DEMO input (Not used) / FL P24 segment output.
61 CASINO-DEMO / P23 I/O Casino DEMO input / FL P23 segment output.
62 ECO-ON / P22 I/O ECO ON (default setting) detect input / FL P22 segment output.
– 32 –
Pin No. Pin Name I/O Description
63 NO-RHYTHM / P21 I/O No rhythm (beat master) function rhythm input (Not used) / FL P21 segment output.
64 AC3-DPL / P20 I/O AC 3 input + DOLBY PRO LOGIC detect input (Not used) / FL P20 segment output.
65 K-CON / P19 I/O K-CON diode detect input (Not used) / FL P19 segment output.
66 RDS / P18 I/O RDS function diode detect input (Not used) / FL P18 segment output.
67 FM1 / P17 I/O OIRT diode detect input (Not used) / FL P17 segment output.
68 SW / P16 I/O SW band diode detect input (Not used) / FL P16 segment output.
69 LW / P15 I/O LW band diode detect input (Not used) / FL P15 segment output.
70 AM-10K / P14 I/O AM-10K diode detect input / FL P14 segment output.
71 AM-ST / P13 I/O AM stereo diode detect input (Not used) / FL P13 segment output.
72 VDD4 - Connected to power supply.
73 REA / P12 I/O Deck 2 side A recordable switch input / FL P12 segment output.
74 CST1 / P11 I/O Deck 1 cassette detect input / FL P11 segment output.
75 CAM1 / P10 I/O Deck 1 CAM switch input / FL P10 segment output.
76 AUTO2 / P9 I/O Deck 2 auto stop input / FL P9 segment output.
77 AUTO1 / P8 I/O Deck 1 auto stop input / FL P8 segment output.
78 CAM2 / P7 I/O Deck 2 CAM switch input / FL P7 segment output.
79 REB / P6 I/O Deck 2 side B recordable switch input / FL P6 segment output.
80 CST2 / P5 I/O Deck 2 cassette detect input / FL P5 segment output.
81~84 P4~P1 O FL P4~P1 segment output.
85 K-SCAN O Key-scan output (active low).
86 SOL1 O Deck 1 solenoid output (active low).
87 SOL2 O Deck 2 solenoid output (active low).
88 O-MOTOR O Deck motor ON/OFF output.
89 VSS2 - Connected to ground.
90 VDD2 - Connected to power supply.
91 IFC-TU I Tuner tune-IF count input (active L).
92 I-STEREO I Tuner stereo detect input (active L).
93 I-SQDATA I CD SUBQ data input.
94 I-DRF I CD DRF input.
95 O-DISHREV O CD dish reverse output.
96 O-DISHFWD O CD dish forward output.
97 O-DATA (CD) O CD control data output.
98 CD-CE O CD control data latch output.
99 O-CLK (CD) O CD control clock output.
100 STB (SHIFT) O Shift register (BU2099) strobe output.
– 33 –
ADJUSTMENT 1 <DECK>
< DECK SECTION >
1. Tape Speed Adjustment (DECK 2)
Settings : • Test tape : TTA–100 (3kHz)
• Test point : TP8 (Lch), TP9 (Rch)
• Adjustment location : SFR1
Method : Play back the test tape and adjust SFR1 so that the
frequency counter reads 3000Hz ± 5Hz (FWD) and
± 45Hz (REV) with respect to forward speed.
2. Head Azimuth Adjustment (DECK 1, DECK 2)
Settings : • Test tape : TTA–330 (315/10kHz)
• Test point : TP8 (Lch), TP9 (Rch)
• Adjustment location : Head azimuth
adjustment screw
Method : Play back (FWD) the 10kHz signal of the test tape
and adjust screw so that the output becomes maximum.
Next, perform on REV PLAY mode.
3. PB Frequency Response Check (DECK 1, DECK 2)
Settings : • Test tape : TTA–330 (315/10kHz)
• Test point :TP8 (Lch), TP9 (Rch)
Method : Play back the 315Hz and 10kHz signals of the test
tape and check that the output ratio of the 10kHz
signal with respect to that of the 315Hz signal is
0dB ± 2dB.
4. PB Sensitivity Adjustment (DECK 1, DECK 2)
Settings : • Test tape : TTA–200 (400Hz)
• Test point : TP8 (Lch), TP9 (Rch)
• Adjustment location : SFR301 (DECK 1, Lch)
SFR302 (DECK 1, Rch)
SFR303 (DECK 2, Lch)
SFR304 (DECK 2, Rch)
Method : Play back the test tape and adjust SFRs so that the
output level of the test points becomes
245mV ± 10mV.
6. REC/PB Sensitivity Check (DECK 2)
Settings : • Test tape : TTA–615 (CrO2)
• Test point : TP8 (Lch), TP9 (Rch)
• Input signal : 1kHz (0VU)
Method : Apply a 1kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the TP1
becomes 180mV. Record and play back the 1kHz signal
and check that the output is 0dB ± 1.5dB.
7. REC/PB Frequency Response Adjustment (DECK 2)
Settings : • Test tape : TTA–602 (Normal)
• Test point : TP8 (Lch), TP9 (Rch)
• Input signal : 1kHz / 10kHz (–20VU)
• Adjustment location :SFR351 (Lch)
SFR352 (Rch)
Method : Apply a 1kHz signal and REC mode. Then adjust OSC
attenuator so that the output level at the TP1
becomes 18mV. Record and play back the 1kHz and
10kHz signals and adjust SFRs so that the
output of the 10kHz signals becomes 0dB ± 0.5dB
with respect to that of the 1kHz signal.
8. REC/PB Frequency Response Check (DECK 2)
Settings : • Test tape : TTA–615 (CrO
• Test point : TP8 (Lch), TP9 (Rch)
• Input signal : 1kHz/10kHz(-20VU)
Method : Apply a 1kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the test point
becomes 18mV. Record and play back the 1kHz and
10kHz signals and check that the output is 0dB ± 2dB.
)
2
5. REC/PB Sensitivity Adjustment (DECK 2)
Settings : • Test tape : TTA–602 (Normal)
• Test point : TP8 (Lch), TP9 (Rch)
• Input signal : 1kHz (0VU)
• Adjustment location : SFR305 (Lch)
SFR306 (Rch)
Method : Apply a 1kHz signal and REC mode. Then adjust OSC
attenuator so that the output level at the test points
becomes 180mV. Record and play back the 1kHz and
and adjust SFRs so that the output level becomes
0dB ± 0.5dB.
– 34 –
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