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Sharp SD-AT50H Service Manual

1-bit digital home cinema
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SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY .................................................................................................................................................................. 6
ADDITIONAL DESCRIPTION ............................................................................................................................................ 8
ADJUSTMENT ................................................................................................................................................................... 9
DESCRIPTION OF CIRCUIT FOR 1-BIT UNIT ................................................................................................................. 9
TO CHECK AND CANCEL PROTECT CIRCUIT DETECTION LINE .............................................................................. 10
BLOCK DIAGRAM ........................................................................................................................................................... 11
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 20
VOLTAGE ........................................................................................................................................................................ 41
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 42
TYPES OF TRANSISTOR AND LED ............................................................................................................................... 42
WAVEFORMS OF 1-BIT CIRCUIT .................................................................................................................................. 43
FUNCTION TABLE OF IC ................................................................................................................................................ 44
REPLACEMENT PARTS LIST/EXPLODED VIEW
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
1-BIT DIGITAL HOME CINEMA
SD-AT50H
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-AT50H
No. ?????????????
Page

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  • Page 1: Table Of Contents

    SD-AT50H SERVICE MANUAL No. ????????????? 1-BIT DIGITAL HOME CINEMA SD-AT50H 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 SAFETY PRECAUTION FOR SERVICE MANUAL ......................2 IMPORTANT SERVICE NOTES (FOR U.K.

  • Page 2: Safety Precaution For Service Manual

    SD-AT50H SAFETY PRECAUTION FOR SERVICE MANUAL Precaution to be taken when replacing and servicing the Laser Diode Properties Material: AIGaAs/InGaAIP Laser Pickup. Wavelength: 780 nm/650 nm Emission Duration: continuous Laser Output: max. 0.69 mW The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements.

  • Page 3: Specifications

    SD-AT50H FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS AV control unit Front/centre/surround speakers Type Full range speaker system (magnetic shield) Dimensions Width: 215 mm (8-1/2") Height: 58 mm (2-5/16") 8 cm (3-1/8") Speaker Depth: 261 mm (10-5/16")

  • Page 4: Names Of Parts

    12. Timer Set Indicator <The bottom of the unit> 13. Function Button 14. Digital/Analog Input Select or Tuner Band Select Button MODEL NO. SD-AT50H (AV CONTROL UNIT) 15. Volume Up and Down Buttons 1-BIT DIGITAL HOME CINEMA 16. Remote Sensor 17.
  • Page 5 SD-AT50H Remote control 1. Remote Control Transmitter 2. Display Brightness Select or Clock Display Button 3. TV Display Select Button 4. Direct Button 5. Direct Number Buttons 6. Disc Repeat Button 7. Disc A - B Repeat Button 8. DVD Menu Button 9.

  • Page 6: Disassembly

    SD-AT50H 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 7 SD-AT50H Subwoofer/Amplifier Unit (F1)x2 ø3x8mm REMOVAL PROCEDURE FIGURE STEP Limit PWB Rear Cover 1. Screw ....(A1) x16 (D2)x1 (E1)x1 ø3x8mm Subwoofer Stand 1. Screw ...... (B1) x8 1-Bit Amp. Unit Amp. Unit 1. Screw ...... (C1) x5 2. Socket ..... (C2) x2...

  • Page 8: Additional Description

    SD-AT50H (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 9: Adjustment

    SD-AT50H ADJUSTMENT 1-bit amplifier's output offset voltage adjustment R-CH Output Offset Adjusument Adjust VRA100, VRA101, VRA200, VRA201, VRA300 and VRA300 VRA200 VRA100 VRA301 so that the DC voltage between speaker terminals + and - is set to 0 ± 5 mV at AC 230 V.

  • Page 10: To Check And Cancel Protect Circuit Detection Line

    SD-AT50H 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 11: Block Diagram

    SD-AT50H (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-AT50H 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-AT50H 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-AT50H 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 IC501 GOUTC...
  • Page 15 SD-AT50H +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-AT50H 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-AT50H 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-AT50H 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-AT50H 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-AT50H P25 10 - B JT501 JT502 TO DSP PWB DVD/CD/TV VTR/AUX CN501B TERMINAL TERMINAL DVD/CD R-CH L-CH R-CH L-CH R-CH L-CH R-CH L-CH CNP505 CNP506 FFC501 SYSTEM SYSTEM CONTROL CONTROL TERMINAL TERMINAL R520 C701 C532 C692 2 3 4...
  • Page 21 SD-AT50H TUNER UNIT FFC504 LCD1 TUN1 LED9 LED10 RMS1 POWER FAN MOTOR 1 2 3 P27 12 - B CNP803 TO POWER PWB CNS803B SUBWOOFER CNS802B P27 12 - C CNP802 TO POWER PWB LED7 DIGITAL/ ANALOG LED5 LIMIT PWB-E...
  • Page 22 SD-AT50H 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 C167 R146 D102 R134 C145...
  • Page 23 SD-AT50H C305 C307 C306 R313 C301 C308 R332 R331 R414 C303 R334 R333 R336 R397 R395 R400 R403 R335 R338 R394 R408 C312 R337 IC301 R339 R392 R391 R342 R341 R389 R402 R316 R401 R344 R343 R388 R387 C316 R315...
  • Page 24 SD-AT50H 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-AT50H P20 2 - A TO MAIN PWB CN501A FFC501 TP490 TP489 TP488 TP329 P387 TP330 TP331 C169 TP487 D311 D312 TP380 CN501B TP379 TP381 TP486 TP382 TP541 TP483 P425 TP484 P426 TP540 TP482 TP306 TP472 TP485 TP301 TP371 TP481...
  • Page 26 SD-AT50H POWER PWB-C (TOP VIEW) Figure 26 WIRING SIDE OF P.W.BOARD (7/10) – 26 –...
  • Page 27 SD-AT50H 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 R817 R837 R815 R835 CNP801 R855 R857...
  • Page 28 SD-AT50H 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 29 SD-AT50H 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 30 SD-AT50H JT501 DVD/CD/TV DISPLAY PWB-A2 INPUT 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 31 SD-AT50H JT502 D/TV VTR/AUX INPUT 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...
  • Page 32 SD-AT50H P30 1 - E TO MAIN PWB CN501A P31 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 33 SD-AT50H P30 5 - B P30 2 - C TO DISPLAY PWB TO MAIN PWB CN502A CN503A P31 12 - D FFC503 FFC502 FROM MAIN PWB CNS507 CHASSIS 1 2 3 4 5 6 CNP507 TP300 CN503B C170 CN502B 0.001...
  • Page 34 SD-AT50H 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 35 SD-AT50H PC901 R921 PC123FY8 2.7K R901 33K(2W) C918 D916 3300 D911 R918 EU02A SF10SC9 39K(2W) 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 36 SD-AT50H SURROND CHASSIS C970 POWER PWB-C(2/2) 0.01 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 10/16 A/D_RESET R715 1K...
  • Page 37 SD-AT50H P41 11 - H P40 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 38 SD-AT50H 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 39 SD-AT50H P36 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 8.2K...
  • Page 40 SD-AT50H 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 P36 4 - H LED811 D833 31URT21 DS1SS133 CNS805...

  • Page 41: Voltage

    SD-AT50H 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 42: Notes On Schematic Diagram

    SD-AT50H 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 43: Waveforms Of 1-Bit Circuit

    SD-AT50H 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 44: Function Table Of Ic

    SD-AT50H 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 45 SD-AT50H 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 46 SD-AT50H 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 47 SD-AT50H 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 48 SD-AT50H 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 49 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 50 SD-AT50H IC301 RH-iX0563AWZZ: DSP System Microcomputer (IX0563AW) (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 DSP_RESET Output DSP IC RESET output. P56/ALE N.C. Output Set it as an output terminal and fix it to Low since it is not used.
  • Page 51 SD-AT50H IC301 RH-iX0563AWZZ: DSP System Microcomputer (IX0563AW) (3/3) Pin No. Port Name Terminal Name Input/Output Function P16/D14/INT4 DSP_INTREQ Input Input of DSP data receive request signal. L : DSP -> microcomputer DATA receive request. P15/D13/INT3 H.P_SW Input Headphones insert SW detect input.
  • Page 52 SD-AT50H IC301 RH-iX0563AWZZ: DSP System Microcomputer (IX0563AW) 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 P96/ANEX1/ N.C. LCD_SDA P10/D8 SOUT4 P95/ANEX0/ LCD_SCL P11/D9 CONFIG CLK4 P94/DA1/ N.C. LCD_CS...
  • Page 53 SD-AT50H 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 54 SD-AT50H IC501 VHiBD3811K1-1: Volume IC (BD3811K1) (2/2) Pin No. Terminal Name Function (+) Power supply 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 55 SD-AT50H 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 56 SD-AT50H 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 57 SD-AT50H IC701 RH-iX0564AWZZ: System Microcomputer (IX0564AW) Pin No. Port Name Terminal Name Input/Output Function A/D_RESET Output Output of 1 bit AMP∆∑ IC reset control. “H” output : normal operation, reset when switching from “L” to “H”. N.C. Output Open terminal. “L” is output, PWB is open.
  • Page 58 SD-AT50H 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 59 SD-AT50H 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 59 BLOCK DIAGRAM OF IC – 59 –...
  • Page 60 SD-AT50H — M E M O — – 60 –...
  • Page 61 “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 62 SD-AT50H PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK INTEGRATED CIRCUITS Q827 VSKTC3205Y/-1 AD Silicon,NPN,KTC3205 Y Q828 VSKRC102M//-1 AC Digital,NPN,KRC102 M Q829 VSKRA107M//-1 AE Digital,PNP,KRA107 M IC101 VHICS493264-1 BN DSP,CS493264 Q830 VSKTA1271Y/-1 AC Silicon,PNP,KTA1271 Y IC102 VHIAK4586VQ-1 BC ADC/DAC/DIR Converter,...
  • Page 63 SD-AT50H PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK DA505 VHDKDS120E+-1 AC Silicon,KDS120E CAPACITORS DT01 VHDDS1SS133-1 AB Silicon,DS1SS133 LED1,2 VHP31URT21+-1 AD LED,Red,31URT21 AB 0.022 µF,25V VCKYCY1EF223Z LED3 VHP3105VGT+-1 AD LED,Green,3105VGT AB 10 µF,16V,Electrolytic VCEAEA1CW106M J LED4 VHP31URT21+-1 AD LED,Red,31URT21...
  • Page 64 SD-AT50H PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK AA 0.001 µF,50V AE 1000 µF,25V,Electrolytic C589 VCKYCY1HB102K C931,932 VCEAZV1EW108M J AA 0.001 µF,50V AE 1000 µF,16V,Electrolytic C590~592 VCKYBT1HB102K C933 RC-EZ0096AWZZ AC 100 µF,16V,Electrolytic AE 3300 µF,16V,Electrolytic C594 VCEAZA1CW107M J...
  • Page 65 SD-AT50H PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK AA 0.001 µF,50V CA270 VCKYCY1HB102K R122~124 VRS-CY1JB472J AA 4.7 kohms,1/16W AA 0.1 µF,25V CA275,276 VCKYCY1EF104Z R125,126 VRS-CY1JB331J AA 330 ohms,1/16W CA277 VCCCCY1HH101J AA 100 pF (CH),50V R127,128 VRS-CY1JB101J AA 100 ohm,1/16W AC 10 µF,16V,Electrolytic...
  • Page 66 SD-AT50H PRICE PRICE PART CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R604,605 VRD-ST2CD473J AA 47 kohms,1/6W R814 VRS-CY1JB103J AA 10 kohm,1/16W R606 VRD-ST2CD474J AA 470 kohms,1/6W R815,816 VRS-CY1JB104J AA 100 kohm,1/16W R607 VRD-ST2CD224J AA 220 kohms,1/6W R817,818 VRS-CY1JB223J AA 22 kohms,1/16W...
  • Page 67 SD-AT50H PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK RA108,109 VRS-CY1JB203D AB 20 kohms,1/16W RA492,493 VRS-VV3DA100J AB 10 ohm,2W RA110~113 VRS-CY1JB101J AA 100 ohm,1/16W RA500~505 VRS-CY1JB222J AA 2.2 kohms,1/16W RA114~117 VRS-CY1JB222J AA 2.2 kohms,1/16W RA506 VRS-CY1JB472J AA 4.7 kohms,1/16W...
  • Page 68 SD-AT50H PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK 92LSWICHT1663T J AC Switch,Key Type [Digital/Analog] LX-JZ0022AFFD AA Screw,ø3×10mm 92LSWICHT1663T J AC Switch,Key Type [Function] LX-JZ0042AWZZ AB Screw,ø3×20mm TP300 QCNCM890JAFZZ J AG Plug,9Pin XBPSD30P06KS0 AA Screw,ø3×6mm TUN1 RTUNS0030AWZZ J...
  • Page 69 SD-AT50H PRICE DESCRIPTION PART CODE RANK 92LFANT1535A AF FM Antenna 92LHOLD4809ASY J AL Stand Ass’y TCAUZ0153AWZZ Speaker Connect Sheet [Except for U.K. Only] P.W.B. ASSEMBLY (Not Replacement Item) PWB-A1,2 92LPWB4886MANS J — Main/Display (Combined Ass’y) PWB-B 92LPWB4886DSPS J — PWB-C 92LPWB4886PWRS J —...
  • Page 70 SD-AT50H 610x2 615x5 602x2 PWB-B TUNER UNIT Silicon Grease 612x4 610x2 612x2 608x2 IC507 IC513 612x3 602x4 PWB-A1 WI01 602x2 607x6 603x2 PWB-A2 615x3 LCD1 201-5 201-7 610x2 201-3 201-2 201-6 201-4 201-1 610x2 Figure 9 CABINET EXPLODED VIEW (1/2)
  • Page 71 SD-AT50H PWB-E 610x4 PWB-C 622x4 614x2 610x2 614x5 D911 D913 614x2 Silicon Grease D907 618x2 IC901 246x2 608x2 PWB-F Silicon Grease ICA102 614x2 ICA107 606x6 Silicon Grease Silicon Grease 621x2 621x2 ICA202 621x2 610x3 235x4 621x2 610x6 ICA207 Subwoofer 619x6...
  • Page 72 SD-AT50H 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 73: Packing Method (For U.k. Only)

    SD-AT50H PACKING METHOD (FOR U.K. ONLY) 1. Battery 21. Sleeve SPAKS0006AWZZ 2. Sheet, Leg PCUSG0129AWSA 22. Inner Case, AV Control Unit SPAKT0033AWZZ 3. AC Power Supply Cord QACCB0017AW00 23. Pad, Accessories SPAKZ0914AWZZ 4. AM Loop Antenna QANTL0012AWZZ 24. Pad, Protection SPAKZ0915AWZZ 5.
  • Page 74 SD-AT50H — M E M O — – 13 –...
  • Page 75 SD-AT50H — M E M O — – 14 –...
  • Page 76 SD-AT50H © 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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