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Sharp SD-AT50 Service Manual
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Sharp SD-AT50 Service Manual

1-bit digital home theater
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IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY) ....................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
DISASSEMBLY .................................................................................................................................................................. 5
ADDITIONAL DESCRIPTIO ............................................................................................................................................... 7
ADJUSTMENT ................................................................................................................................................................... 8
DESCRIPTION OF CIRCUIT FOR 1-BIT UNIT ................................................................................................................. 8
TO CHECK AND CANCEL PROTECT CIRCUIT DETECTION LINE ................................................................................ 9
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 10
TYPES OF TRANSISTOR AND LED ............................................................................................................................... 10
BLOCK DIAGRAM ........................................................................................................................................................... 11
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 20
VOLTAGE ........................................................................................................................................................................ 45
WAVEFORMS OF 1-BIT CIRCUIT .................................................................................................................................. 46
FUNCTION TABLE OF IC ................................................................................................................................................ 47
FL DISPLAY ..................................................................................................................................................................... 51
REPLACEMENT PARTS LIST/EXPLODED VIEW
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
1-BIT DIGITAL HOME THEATER
MODEL
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SD-AT50
No. ?????????????
SD-AT50
Page

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  • Page 1: Table Of Contents

    SD-AT50 SERVICE MANUAL No. ????????????? 1-BIT DIGITAL HOME THEATER SD-AT50 MODEL • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used. CONTENTS Page IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY) ....................... 2 SPECIFICATIONS ................................

  • Page 2: Important Service Notes (For U.s.a. Only)

    SD-AT50 IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY) BEFORE RETURNING THE AUDIO PRODUCT (Fire & Shock Hazard) Before returning the audio product to the user, perform the following safety checks. 1. Inspect all lead dress to make certain that leads are not...

  • Page 3: Names Of Parts

    SD-AT50 NAMES OF PARTS AV control unit Display 1. Timer Play Indicator 2. Sleep Indicator 3. FM Stereo Mode Indicator 4. FM Stereo Receiving Indicator (2) (3) (4) (5) (6) 5. Audio Signal Indicators/Speaker Indicators (1) Left Front Speaker Indicator...
  • Page 4 SD-AT50 Remote control [Front] 1. Remote Control Transmitter 2. On/Stand-by Button 3. CD/MP3 Disc Play Mode Select Button 4. TV On/Stand-by Button 5. TV Volume Up and Down Buttons 6. TV Input Select Button 7. DVD Frame Advance, Disc Pause Button 8.

  • Page 5: Disassembly

    SD-AT50 DISASSEMBLY Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure (D1)x2 excellent performance: ø3x8mm 1. Be sure to remove the power supply plug from the wall (D2)x1 outlet before starting to disassemble the unit.
  • Page 6 SD-AT50 Limit PWB Subwoofer/Amplifier Unit (D2)x1 (F1)x2 REMOVAL PROCEDURE FIGURE STEP ø3x8mm Rear Cover 1. Screw ....(A1) x17 1-Bit Amp. Unit Subwoofer Stand 1. Screw ...... (B1) x8 (F1)x1 (E1)x2 Amp. Unit 1. Screw ...... (C1) x5 ø3x8mm ø3x8mm 2.

  • Page 7: Additional Descriptio

    SD-AT50 (Note 1) Wrap a slotted screwdriver with a waste cloth, etc. and insert (J1)x4 ø4x16mm it into the gap to remove the front panel. Take great care not to damage the subwoofer box. Subwoofer Screwdriver Front Panel Subwoofer Subwoofer...

  • Page 8: Adjustment

    SD-AT50 Compatibility of parts New Parts HPNLC1380AWSA GCABC1315AWSA GCABC1316AWSA LANGK0368AWFW LANGK0369AWFW (Front Panel) (Top Cabinet) (Bottom Cabinet) (Front Support (Front Support Bracket, Left) Bracket, Right) Old Parts HPNLC1347AWSA (Front Panel) — GCABC1300AWSA (Top Cabinet) — GCABC1301AWSA (Bottom Cabinet) — LANGK0336AWFW (Front Support Bracket, Left) —...

  • Page 9: To Check And Cancel Protect Circuit Detection Line

    SD-AT50 TO CHECK AND CANCEL PROTECT CIRCUIT DETECTION LINE 1 1 1 1 1 1: In this model the microcomputer (IC301 or IC701) detects Abnormal drop in the output voltage of each regulator the following malfunctions once power is supplied, and cuts...

  • Page 10: Notes On Schematic Diagram

    SD-AT50 NOTES ON SCHEMATIC DIAGRAM • Resistor: • Schematic diagram and Wiring Side of P.W.Board for this To differentiate the units of resistors, such symbol as K and model are subject to change for improvement without prior M are used: the symbol K means 1000 ohm and the symbol notice.

  • Page 11: Block Diagram

    SD-AT50 (6 CH AVAILABLE) ICA102, ICA107 ICA202, ICA207 ICA302, ICA307 SLA5505M ICA100, ICA200, ICA300 SWITCHING AUDIO IX2815AF POWER AMP. 7TH ORDER ∆∑ MODULATION CONVERSION LSI OUTPUT OFFSET ADJUSTMENT ANALOG SIGNAL INPUT Figure 11 BLOCK DIAGRAM (1/9) – 11 –...
  • Page 12 SD-AT50 LED3 LED1 LED2 LED4 LED5 LED6 LCD1 9 10 11 12 LED10 LED9 LED DRIVER LED DRIVER DRIVER LED DRIVER LED DRIVER LED DRIVER DRIVER DRIVER RMS1 GP1UD271 REMOCON SENSOR RXIN HEADPHONES Figure 12 BLOCK DIAGRAM (2/9) – 12 –...
  • Page 13 SD-AT50 CN502A KEY_1 SW2~SW5 +5V(D) GND(U-COM) LED7 LED6 STRLED H.P SW STDLED +5V(D) R-CH GND(D) LED DRIVER L-CH LED DRIVER VIRLED D DRIVER GND(A) DPLLED LCDRESET DDLED LCDCS DTSLED LCDSCL TIMERLED LCDSDA +3.7V(UN-SWD) +3.3V(SWD) POWERKEY LED8 RXIN BACK_LIGHT LED9V H.P SW Figure 13 BLOCK DIAGRAM (3/9) –...
  • Page 14 SD-AT50 JT501 TO DSP SECTION DVD/CD/TV JT502 TERMINAL VTR/AUX TERMINAL CN503A 24 23 17 16 15 14 IN22 IN DSPSR IN DSPSL IN21 TUN_R INDSPC IN12 TUN_L IN DSPSW IN11 AGND1 ROUT32 GOUTSW ROUT31 VINSW ROUT22 AGND2 ROUT21 GOUTC ROUT12...
  • Page 15 SD-AT50 +12V S_MUTE Q516 Q504 HP_L Q517 IC505 NJM4565D OPE AMP. Q518 AGND OUTSW SUB WOOFER HP_R OUTF_LCH FRONT LCH OUTF_RCH Q503 FRONT RCH AGND OUTC CENTER OUTSR_RCH SURROUND RCH OUTSR_LCH SURROUND LCH CNP506 A_-7V A_+7V IN22 Q525 TUN_R TUN_L Q527 A.GND...
  • Page 16 SD-AT50 SO801 SPEAKER TERMINAL R-CH + R-CH + R-CH - R-CH - L-CH - L-CH - L-CH + L-CH + RL801 SP__RLY R-CH + R-CH + R-CH - R-CH - L-CH - L-CH - +15V L-CH + L-CH + SP__RLY...
  • Page 17 SD-AT50 PC901 +15V IC911 SE-B2 D911 ERROR RL911 AMP. -15V TRS901 IC912 KIA7812AP Q911 VOLTAGE REGULATOR Q920 Q921 D920 Q922 RIVER BUFFER BI901 Q919 Q925 Q924 RELAY DRIVER D_+7.5V Q901 IC913 D913 FB/SYNC S812C37A 3.7V REGULATOR +3.7V(UCON) SYNC A_+15V A__+15V...
  • Page 18 SD-AT50 TO MAIN SECTION CN501B CNP507 SO101 IC110 DVD/CD DIGITAL INPUT TERMINAL SI3050LUS VOLTAGE REGULATOR IC109 33 32 31 30 29 28 27 26 25 24 23 +5V(A) TC7WU04U VREFH DUAL2-INPUT +5V(A) PVDD AVDD AND GATE AVSS PVSS DZF2/OVF CAD0/CSN...
  • Page 19 SD-AT50 TO DISPLAY SECTION TO MAIN SECTION CN503B TP300 CNP507 3 4 5 +3.3V(UN-SWD) +3.3V(BACK-UP) Q402 IC302 RESET Q401 PST9127N POINT RESET XL301 8.38MHz 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13...

  • Page 20: Schematic Diagram / Wiring Side Of P.w.board

    SD-AT50 P25 10 - B JT501 JT502 TO DSP PWB DVD/CD/TV VTR/AUX P25 10 - G CN501B TERMINAL TERMINAL TO DSP PWB CNP507 DVD/CD R-CH L-CH R-CH L-CH R-CH L-CH R-CH L-CH CNP505 CNP506 FFC501 CNS507 SYSTEM SYSTEM 1 2 3...
  • Page 21 SD-AT50 TUNER UNIT FFC504 LCD1 TUN1 LED9 LED10 RMS1 POWER FAN MOTOR 1 2 3 P27, 29 12 - B CNP803 TO POWER PWB CNS803B SUBWOOFER CNS802B P27, 29 12 - C CNP802 TO POWER PWB LED7 DIGITAL/ ANALOG LED5...
  • Page 22 SD-AT50 D103 D105 R140 D104 R141 R139 D304 D305 C143 C144 C154 C138 IC111 C117 C118 C137 R411 C122 C156 C127 R130 IC102 R149 C120 C165 C150 IC109 C116 C112 C114 C105 R122 C147 R123 R146 D102 R134 C145 R124...
  • Page 23 SD-AT50 C305 C307 C306 R313 C301 C308 R332 R331 R414 C303 R334 R333 R336 R397 R395 R400 R403 R335 R338 R337 R394 R408 C312 IC301 R339 R392 R391 JP301 R342 R341 R389 R402 R316 R401 R344 R343 R388 R387 C316...
  • Page 24 SD-AT50 TP387 TP454 TP506 TP504 TP502 TP450 TP449 TP455 TP458 TP385 TP503 TP505 TP446 TP444 TP442 TP386 TP456 TP441 TP445 TP443 TP459 TP507 TP508 TP452 TP448 TP447 TP457 TP509 TP438 TP440 TP432 TP435 TP512 TP528 TP437 TP436 TP529 D310 TP513...
  • Page 25 SD-AT50 P20 2 - A TO MAIN PWB CN501A FFC501 TP490 TP489 TP488 TP329 P387 TP330 TP331 TP487 D312 D311 TP380 CN501B TP379 TP381 TP486 TP382 TP541 TP483 P425 TP484 P426 TP540 TP482 TP306 TP472 TP485 TP301 TP371 TP481 TP302...
  • Page 26 SD-AT50 (Serial No. 208XXXXX ~ 210XXXXX) POWER PWB-C (TOP VIEW) Figure 26 WIRING SIDE OF P.W.BOARD (7/12) – 26 –...
  • Page 27 SD-AT50 P21 9 - G TO LIMIT PWB CNP805 CNS805 1 2 3 4 5 6 7 POWER PWB-C (BOTTOM VIEW) Q811 Q812 Q813 R819 C815 C827 R811 C825 C817 R839 R859 C839 R815 R817 R835 R837 CNP801 R857 C826...
  • Page 28 SD-AT50 (Serial No. 211XXXXX ~) POWER PWB-C (TOP VIEW) Figure 28 WIRING SIDE OF P.W.BOARD (9/12) – 28 –...
  • Page 29 SD-AT50 P21 9 - G TO LIMIT PWB CNP805 CNS805 1 2 3 4 5 6 7 POWER PWB-C (BOTTOM VIEW) Q811 Q812 Q813 R811 R819 C815 C827 C825 C817 R839 R859 C839 R837 R815 R817 R835 CNP801 R857 C826...
  • Page 30 SD-AT50 1-BIT AMP. PWB-D (TOP VIEW) DA505 QA300 QA301 DA317 DA504 CA362 CA365 RA516 CA367 CA369 CA368 DA310 DA311 QA405 DA312 CA346 CA345 DA309 DA308 DA500 DA410 RA319 RA321 DA413 RA333 DA502 DA215 CA433 ICA301 QA409 DA422 RA466 CA257 CA424...
  • Page 31 SD-AT50 Through-hole where the top, bottom and +B patterns are connected. Through-hole where the top, bottom and ground patterns are connected. Through-hole where the top, and bottom patterns are connected. Through-hole where the top, and bottom -B patterns are connected.
  • Page 32 SD-AT50 JT501 DVD/CD/TV DISPLAY PWB-A2 TERMINAL VOLUME VOLUME DIGITAL/ POWER DOWN ANALOG FUNCTION LCD1 3.3K 2.2K 1.8K R644 KEY_1 LED1 LED3 LED4 LED5 LED6 LED7 LED2 +5V(D) 31URT21 31URT21 3105VGT 31URT21 3105T1 3105VGT 3105T1 0.47 GND(U-COM) GND(U-COM) C660 ORANGE +5V(D) 1.5K...
  • Page 33 SD-AT50 JT502 D/TV VTR/AUX TERMINAL MAIN PWB-A1 R644 R639 R636 R631 FM SIGNAL C655 C652 C645 C660 1/50 1/50 1/50 1/50 DVD/CD SIGNAL C657 C662 C654 C647 C661 47P(CH) 47P(CH) 47P(CH) 47P(CH) 47P(CH) TV SIGNAL R646 R641 R633 R638 R645...
  • Page 34 SD-AT50 P32 1 - E TO MAIN PWB CN501A P33 12 - D FFC501 FROM MAIN PWB CNS507 CHASSIS CN501B CNP507 C170 0.001 FM SIGNAL IC109 TC7WU04U DUAL2-INPUT NAND GATE C132 C153 C133 C111 D103 R141 KDS160 2.2/50 R150 R146...
  • Page 35 SD-AT50 P32 5 - B P32 2 - C TO DISPLAY PWB TO MAIN PWB CN502A CN503A P33 12 - D FFC503 FFC502 FROM MAIN PWB CNS507 CHASSIS 1 2 3 4 5 6 CNP507 TP300 CN503B C170 CN502B 0.001...
  • Page 36 SD-AT50 POWER PWB-C(1/2) L911 3.3 µH +15V R923 C931 1.5K C965 C929 C927 1000/25 0.022 2200/25 2200/25 GND(D1) R924 C967 C932 C966 RL911 0.022 1000/25 C954 0.022 330P –15V IC911 R925 2.2K SE-B2 IC912 ERROR KIA7812AP PS904 R926 AMP. VOLTAGE...
  • Page 37 SD-AT50 PC901 R921 PC123FY8 2.7K R901 47K(2W) C918 R902 D916 0.01 47K(2W) D911 EU02A SF10SC9 C921 BT148 0.01 TRS901 D917 D1NL20U R935 1.5K D921 D918 D1NL20U D1NL20U R932 D919 C926 3.9K D1NL20U 22/50 (1/2W) D907 SARS03 Q921 R933 KRC106 M 3.3K(1/2W)
  • Page 38 SD-AT50 (Serial No. 208XXXXX ~ 210XXXXX) SURROND CHASSIS POWER PWB-C(2/2) FM SIGNAL C874 0.022 Q829 KRA107 M C859 22/16 R720 BASS-SW BASS-SW DRIVER DRIVER Q828 KRC102 M R740 R852 R851 R832 3.3K 2.2K 3.3K R735 R892 1.5K 4.7K C837 C826...
  • Page 39 SD-AT50 P43 11 - H P42 6 - H TO 1-BIT AMP. PWB TO 1-BIT AMP. PWB CNA103 CNA101 SURROND FRONT CNS801 CNS802A CNP801 SYSTEM CONTROL TERMINAL BI802 BI801 4 3 2 1 R831 R812 R811 R832 3.3K 3.3K 3.3K 3.3K...
  • Page 40 SD-AT50 (Serial No. 211XXXXX ~) SURROND CHASSIS POWER PWB-C(2/2) FM SIGNAL C874 0.022 Q829 KRA107 M C859 22/16 BASS-SW R720 BASS-SW DRIVER DRIVER Q828 KRC102 M R740 R852 R851 R832 2.2K 3.3K 3.3K R735 R892 4.7K 1.5K C837 C826 10/16...
  • Page 41 SD-AT50 P43 11 - H P42 6 - H TO 1-BIT AMP. PWB TO 1-BIT AMP. PWB CNA103 CNA101 SURROND FRONT CNS801 CNS802A CNP801 SYSTEM CONTROL TERMINAL BI801 BI802 4 3 2 1 R831 R811 R832 R812 3.3K 3.3K 3.3K 3.3K...
  • Page 42 SD-AT50 CNA100 1-BIT AMP. PWB-D RA100 RA101 3.3K 3.3K ANALOG IN L-CH 1 ANALOG IN R-CH 1 FM SIGNAL RA103 RA102 CA122 0.01 8.2K 8.2K RA105 CA100 CA101 CA132 120K 10/16 10/16 47/25 RA109 RA107 RA108 120K CA131 CA177 CA413...
  • Page 43 SD-AT50 P38, 40 6 - H FROM POWER PWB CNS803A RA201 RA301 RA300 RA200 3.3K 3.3K 3.3K 3.3K ANALOG IN L-CH 2 ANALOG IN R-CH 2 CH 1 ANALOG IN L-CH 3 ANALOG IN R-CH 3 RA202 RA203 RA303 RA302 8.2K...
  • Page 44 SD-AT50 LED805 D831 D837 DS1SS133 31URT21 DS1SS133 LED803 D835 D829 31URT21 DS1SS133 DS1SS133 D830 D836 LED804 DS1SS133 DS1SS133 31URT21 LED806 D838 D832 31URT21 DS1SS133 DS1SS133 D839 LED813 DS1SS133 31URT21 SURROUND L-CH P38, 40 4 - H LED811 D833 31URT21 DS1SS133...

  • Page 45: Voltage

    SD-AT50 VOLTAGE IC101 IC102 IC301 IC901 ICA102 IC501 VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE 2.5 V 3.5 V 1.2 V 0.5 V -14.5 V 0.4 V 2.6 V — 1.2 V 4.9 V 2.9 V 127 V —...

  • Page 46: Waveforms Of 1-Bit Circuit

    SD-AT50 WAVEFORMS OF 1-BIT CIRCUIT 2.00 V/div 2.00 V/div 2.00V/div 2.00V/div AD IC Output + Side LEVEL SHIFT OUT DEAD TIME - Side 194.545465 µs 500 ns/div 520 mV 50.0 ns/div 0.0 s -12.30 V Amplitude Dead time is generated by level...

  • Page 47: Function Table Of Ic

    SD-AT50 FUNCTION TABLE OF IC IC101 VHiCS493264-1: DSP (CS493264) (1/3) Pin No. Terminal Name Input/Output Function Input Digital positive supplies. Norminally + 2.5 V. DGND1 — Digital ground. AUDATA3, XMT958 Output CMOS level output that contains a biphase-mark encoded (S/PDIF) or I...
  • Page 48 SD-AT50 IC101 VHiCS493264-1: DSP (CS493264) (2/3) Pin No. Terminal Name Input/Output Function SCLKN1, STCCLK2 Input Bidirectional digital-audio bit clock that is an output in master mode and an input in slave mode. In slave mode, SCLKN1 operates asynchronously from all other CS493XX clocks.
  • Page 49 SD-AT50 IC101 VHiCS493264-1: DSP (CS493264) (3/3) Pin No. Terminal Name Input/Output Function SCLK Input Bidirectional digital-audio output bit clock. SCLK can be an output that is derived from MCLK to provide 32 Fs, 64 Fs, 128 Fs, 256 Fs, or 512 Fs, depending on the MCLK rate and the digital-output configuration.
  • Page 50 SD-AT50 IC102 VHiAK4586VQ-1: ADC/DAC/DIR Converter (AK4586VQ) (1/2) Pin No. Terminal Name Input/Output Function Output Crystal resonator output pin. Input Crystal resonator input pin. EXTCLK Input Master clock input pin. TVDD Input Power supply pin for the output buffer. 2.7 V – 5.5 V.

  • Page 51: Fl Display

    SD-AT50 IC102 VHiAK4586VQ-1: ADC/DAC/DIR Converter (AK4586VQ) (2/2) Pin No. Terminal Name Input/Output Function Input Receiver channel input 2 pin. (Internal bias pin) Input Serial control mode selection pin. “L” : 4-line serial, “H” : I2C bus Input Receiver channel input 1 pin. (Internal bias pin) Input Power down &...
  • Page 52 Normal : “H”, power failure detection when switching from “H” to “L”. P83/INT1 AMP_INT Input Communication request input from AMP UNIT. P82/INT0 RX_IN Input SHARP system, remote control input. P81/TA4IN/U N.C. Output Set it as an output terminal and fix it to Low since it is not used. P80/TA4OUT/U N.C. Output Set it as an output terminal and fix it to Low since it is not used.
  • Page 53 SD-AT50 IC301 RH-iX0563AW00: DSP System Microcomputer (IX0563AW) [Serial No. 208XXXXX Only] (2/3) IC301 RH-iX0563AWZZ: DSP System Microcomputer (IX0563AW) [Serial No. 209XXXXX~] (2/3) Pin No. Port Name Terminal Name Input/Output Function P60/CTS0/RTS0 DSP_CS Input DSP IC serial send/receive strobe output. P57/RDY/CLKOUT...
  • Page 54 SD-AT50 IC301 RH-iX0563AW00: DSP System Microcomputer (IX0563AW) [Serial No. 208XXXXX Only] (3/3) IC301 RH-iX0563AWZZ: DSP System Microcomputer (IX0563AW) [Serial No. 209XXXXX~] (3/3) Pin No. Port Name Terminal Name Input/Output Function P16/D14/INT4 DSP_INTREQ Input Input of DSP data receive request signal.
  • Page 55 SD-AT50 IC301 RH-iX0563AW00: DSP System Microcomputer (IX0563AW) [Serial No. 208XXXXX Only] IC301 RH-iX0563AWZZ: DSP System Microcomputer (IX0563AW) [Serial No. 209XXXXX~] 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 P96/ANEX1/ N.C.
  • Page 56 SD-AT50 IC501 VHiBD3811K1-1: Volume IC (BD3811K1) (1/2) Pin No. Terminal Name Function IN31 1ch input terminal 3. IN32 2ch input terminal 3. IN41 1ch input terminal 4. IN42 2ch input terminal 4. IN51 1ch input terminal 5. IN52 2ch input terminal 5.
  • Page 57 SD-AT50 IC501 VHiBD3811K1-1: Volume IC (BD3811K1) (2/2) Pin No. Terminal Name Function (+) Power supplu terminal. 53, 54 AGND7, AGND8 Analog ground terminal. OUT1 1ch output terminal. BBNF1 1ch bass boost filter terminal. OUT2 2ch output terminal. BBNF2 2ch bass boost filter terminal.
  • Page 58 SD-AT50 IC501 VHiBD3811K1-1: Volume IC (BD3811K1) IN31 TNF2 IN32 TNF1 IN41 BNF11 – TREBLE – – IN42 BNF21 INSW IN51 BNF12 BASS – – IN52 BNF22 BBNF2 IN61 IN62 OUT2 – IN71 BBNF1 – BASS BOOST Input mute SW OUT1...
  • Page 59 SD-AT50 IC507 VHiBA05ST++-1: Switch Regulator (BA05ST) Pin No. Terminal Name Function Output ON/OFF terminal. Power supply input terminal. Ground terminal. Output terminal. N.C. For BAOOST/SPF SERIES except for BA00AST/ASTFP, it turns to an N.C. terminal. In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
  • Page 60 SD-AT50 IC701 RH-iX0564AW00: System Microcomputer (IX0564AW) [Serial No. 208XXXXX Only] IC701 RH-iX0564AWZZ: System Microcomputer (IX0564AW) [Serial No. 209XXXXX~] Pin No. Terminal Name Input/Output Port Name Function A/D_RESET Output Output of 1 bit AMP∆∑ IC reset control. “H” output : normal operation, reset when switching from “L” to “H”.
  • Page 61 SD-AT50 ICA100, ICA200, ICA300 RH-iX2815AFZZ: 7th Order Modulation Conversion LSI (IX2815AF) Port Name Input/Output Pin No. Function VDDL Input L channel digital output section power terminal OUTL (+) Output L channel forward output terminal OUTL (–) Output L channel reverse output terminal GNDD —...
  • Page 62 SD-AT50 ICA102, ICA107, ICA202, ICA207, ICA302, ICA307 VHiSLA5505M-1: Switching Audio Power Amp. (SLA5505M) VBBA +Vbb VBOOTA HINA Level LINA Shift Down OUTA -Vbb VBBB VBOOTB HINB Level LINB Shift Down OUTB Figure 62 BLOCK DIAGRAM OF IC – 62 –...
  • Page 63 “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the For U.S.A. only following information. Contact your nearest SHARP Parts Distributor to order. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For location of SHARP Parts Distributor, Please call Toll-Free;...
  • Page 64 SD-AT50 PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK INTEGRATED CIRCUITS Q527 VSKTC3199GR-1 AB Silicon,NPN,KTC3199 GR Q528 VSKRC107M//-1 AC Digital,NPN,KRC107 M Q701 VSKRC104M//-1 AC Digital,NPN,KRC104 M IC101 VHICS493264-1 BN DSP,CS493264 Q703 VSKTC3199GR-1 AB Silicon,NPN,KTC3199 GR IC102 VHIAK4586VQ-1 BC ADC/DAC/DIR Converter,...
  • Page 65 SD-AT50 PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK DA413 VHDKDS121E+-1 AC Silicon,KDS121E THERMISTOR DA415 VHDKDS160//-1 AB Silicon,KDS160 DA416 VHDKDS121E+-1 AC Silicon,KDS121E 1 PS811 RH-QX0006AWZZ AE Posistor,4.7 ohms DA418 VHDSFPW56++-1 AE Silicon,SFPW56 1 PS901~904 RH-QX0017AWZZ AG Posistor,1.5 ohms...
  • Page 66 SD-AT50 PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK AA 0.015 µF,50V AE 0.01 µF,400V 1 C916,917 C533~538 VCKYCY1HB153K RC-KZ009LAWZZ AB 0.022 µF,25V AE 0.01 µF,630V 1 C918 C578 VCKYCY1EF223Z RC-QZ0029AWZZ AB 0.022 µF,25V 1 C919 AC 33 µF,35V,Electrolytic...
  • Page 67 SD-AT50 PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK AG 1 µF,25V,Electrolytic CA257,258 RC-KZ0007AWZZ R129 VRS-CY1JB4R7J AA 4.7 ohms,1/16W AA 0.01 µF,25V CA260 VCKYCY1EB103K R130 VRS-CY1JB183J AA 18 kohms,1/16W AA 0.01 µF,25V CA262,263 VCKYCY1EB103K R131 VRS-CY1JB103J AA 10 kohm,1/16W AA 0.01 µF,25V...
  • Page 68 SD-AT50 PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R606 VRD-ST2CD474J AA 470 kohms,1/6W R813 VRS-CY1JB821J AA 820 ohms,1/16W R607 VRD-ST2CD224J AA 220 kohms,1/6W R814 VRS-CY1JB103J AA 10 kohm,1/16W R608 VRD-ST2CD683J AA 68 kohms,1/6W R815,816 VRS-CY1JB104J AA 100 kohm,1/16W...
  • Page 69 SD-AT50 PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK 1 R953 VRD-ST2CD154J AA 150 kohms,1/6W RA481 VRS-CY1JB223J AA 22 kohms,1/16W RA100,101 VRS-CY1JB332J AA 3.3 kohms,1/16W RA482 VRS-CY1JB104J AA 100 kohm,1/16W RA102,103 VRS-CY1JB822J AA 8.2 kohms,1/16W RA483~489 VRS-CY1JB102J AA 1 kohm,1/16W...
  • Page 70 SD-AT50 PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK 92LSWICHT1663T J AC Switch,Key Type [Digital/Analog] XHBSN30P08000 AA Screw,ø3×8mm 92LSWICHT1663T J AC Switch,Key Type [Function] XHBSN30P10000 AA Screw,ø3×10mm TP300 QCNCM890JAFZZ J AG Plug,9Pin XJBSD30P08000 AA Screw,ø3×8mm TUN1 RTUNS0029AWZZ J...
  • Page 71 SD-AT50 PRICE DESCRIPTION PART CODE RANK P.W.B. ASSEMBLY (Not Replacement Item) PWB-A1,2 92LPWB4863MANS J — Main/Display (Combined Ass’y) PWB-B 92LPWB4863DSPS J — PWB-C 92LPWB4863PWRS J — Power PWB-D 92LPWB4863AMPS J — 1-Bit PWB-E Limit – 8 –...
  • Page 72 SD-AT50 610x2 615x5 602x2 PWB-B TUNER UNIT 610x2 604x4 Silicon Grease 604x2 608x2 IC507 604x3 IC513 602x4 PWB-A1 WI01 607x6 603x2 615x3 PWB-A2 LCD1 201-5 610x2 201-3 201-2 201-4 201-6 201-1 610x2 Figure 9 CABINET EXPLODED VIEW (1/2) – 9 –...
  • Page 73 SD-AT50 PWB-E 610x2 610x4 PWB-C 620x4 614x2 610x2 614x5 D911 D913 614x2 Silicon D907 Grease 618x2 IC901 246x2 608x2 ICA102 ICA107 606x6 Silicon 610x3 Grease 621x2 621x2 614x3 ICA202 621x2 235x4 621x2 619x6 610x6 ICA207 SUBWOOFER 621x2 Silicon Grease 611x2...
  • Page 74 SD-AT50 SP1, SP2, SP3, SP4, SP5 SP1, SP2, SP3, WOOFER SPEAKER SP4, SP5 TERMINAL WOOFER SPEAKER TERMINAL 908x4 SP1, SP2, SP3, SP4, SP5 903x2 908x2 908x4 Figure 11 SPEAKER EXPLODED VIEW – 11 –...

  • Page 75: Packing Of The Set (For U.s.a. Only)

    SD-AT50 PACKING OF THE SET (FOR U.S.A. ONLY) AV CONTROL UNIT SUBWOOFER/AMP UNIT AV CONTROL SUBWOOFER SPAKA0402AWZZ UNIT CAUTION SSAKH0095AWZZ Packing Add., Rear, Polyethylene Bag, AV Control Unit SSAKH0096AWZZ AV Control Unit Polyethylene Bag, Subwoofer SUBWOOFER/ AMP UNIT SPAKA0405AWZZ Packing Add., Front/Rear,...
  • Page 76 SD-AT50 © COPYRIGHT 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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