MD-X8 SERVICE MANUAL No. S0778MDX8//// MD-X8 It is the intent of Sharp that this product be used in full compliance with the copyright laws of the United States and that prior permission be obtined from copyright owners whenever necessary. US and foreign patents licensed from Dolby Laboratories Licensing Corporation. SRS technology licensed from SRS Labs. SRS technology holds the following patents: U.S. Patent No. 4,748,669, U.S. Patent No. 4,841,572.
MD-X8 FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. IMPORTANT SERVICE NOTES 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 pinched or that hardware is not lodged between the chassis and other metal parts in the audio product. 2.
MD-X8 NAMES OF PARTS FRONT PANEL 1.Power Button: POWER 2.Remote Control Sensor MD Edit Button: MD MD 3.MD 4.CD Track Select Button: TRACK 5.Personal Computer Mode Indicator 6.LCD Display 7.Name / TOC-Edit Button: NAME/TOC EDIT 8.Auxiliary Input (Digital/Analog / Phono) Button: AUX 9.Tuner Call (Band Select) Button: TUNER (BAND) 10.3D Surround Indicator 11.CD Disc Trays 12.Headphones Jack: PHONES 13.MD Edit/Auxiliary 1 (Analog) Input Jack: MD IN/AUX1 14.
MD-X8 REMOTE CONTROL 5 6 1.Record Mode Button: REC MODE 2.Record Button: 3.Clear Button: CLEAR 4.Program Button: PRGM 5.Play Mode Button: P-MODE 6.Synchro Record Button: SYNCHRO REC 7.Auto Mark Button: AUTO MARK 8.Time Display Select Button:TIME 9.Auxiliary Input (Digital/Analog / Phono) Button: AUX 10.Tuner Preset/CD/MD Track Number Input Buttons 11.Remote Control Transmitter Window 12.3D Surround On/Off Button: SURROUND ON/OFF 13.Pre-Equalizer Button: PRE-EQ 14.Extra Bass Button: X-BASS 15.
W W –5– 8 7 6 5 4 3 2 C A L E N D A RW&WC L O C K Y E A RWWWWW ' 9 8 WWWW M O N T HWWWWW 0 9 WWWW D A Y WWWWWWW 0 1 WWWW C L O C KWWWWW a m 0 : 0 0 C A L E N D A RW&WC L O C K Y E A RWWWWW ' 9 8 WWWW M O N T HWWWWW 0 9 WWWW D A Y WWWWWWW 0 1 WWWW C L O C KWWWWW a m 0 : 0 0 C A L E N D A RW&WC L O C K Y E A RWWWWW ' 9 8 WWWW M O N T HWWWWW 0 1 WWWW D A Y WWWWWWW 0 1 WWWW C L O C KWWWWW a m 0 : 0 0 C A L E N D A RW&WC L O C K Y E A RWWWWW ' 9 8 WWWW M O N T HWWWWW 0 1 WWWW D A Y WWWWWWW 0 1 WWWW C
–6– • The power cannot be turned on from the remote control. SYMPTOM • The remote control does not function or does not operate properly. Remote control SYMPTOM • Radios make unusual noise consecutively. • The preset channel cannot be called. POSSIBLE CAUSE • The batteries (polarity) are not inserted properly. • The batteries inside the remote control are dead. • The remote control is operated from an incorrect distance or angle.
MD-X8 Quick-Guide Guía rápida MD / CD STEREO MD-X8 Turning the power on and off Conexión y desconexión de la alimentación Connection Conexión Remote control Control remoto ● 2 "AA" batteries ● Dos pilas "AA" FM Antenna Antena de FM POWER ● AM Loop Antenna ● Antena de cuadro de AM Remote Sensor Sensor remote ANTENNA AM GND FM 75 OHMS GND ● Left Speaker ● Altavoz izquierdo ● Right Speaker ● Altavoz derecho 8" - 20' (0.
MD-X8 DISASSEMBLY MAIN UNIT STEP REMOVAL PROCEDURE FIGURE 8-1 1 Cabinet 1. Screw ................ (A1) x9 2 Rear Panel 1. Screw ................ (B1) x13 8-1 3 MD Unit 1. Flat Cable .......... (C1) x1 2. Socket ............... (C2) x1 3. Screw ................ (C3) x2 9-1 4 Fan Motor PROCEDURE FIGURE 19 CD Mechanism 1. Screw ................ (U1) x2 2. Top Bord ........... (U2) x1 3. Disc Holder ....... (U3) x1 4. Disc Tray ........... (U4) x3 5. Screw ................ (U5) x1 6.
MD-X8 (C2) x1 (C3) x2 ø3 x8mm (C1) x1 (J1) x4 ø3 x8mm (D2) x2 ø3 x10mm Front Panel (D1) x1 Main PWB Sub Chassis Motor M971 (J2) x2 ø3 x8mm MD Unit (D3) x2 (D2) x1 ø3 x8mm Power PWB Main Chassis Figure 9-1 Display PWB (E2) x3 (H1) x2 ø3 x8mm (G1) x1 Figure 9-3 (G2) x4 ø4 x8mm (F1) x1 CD Changer Block (J2) x1 ø3 x8mm CD Changer Block Lamp PWB (H1) x2 ø3 x12mm CD Servo PWB (E2) x4 Main PWB Front Panel (E1) x4 ø3 x10mm Power Amp.
MD-X8 (U3) x1 Push. (U1) x2 ø2 x7mm (U5) x1 ø2.6 x12mm Pawl (U6) x1 (U9) x1 Spring (U7) x2 ø2 x6mm Push the pawl of disc tray with a proper screwdriver. CD Mechanism (U2) x1 (U10) x4 ø2.6 x10mm (U8) x1 Normal state Turn clockwise the main cam to raise the CD mechanism up to the uppermost position.
MD-X8 SPEAKER MD Mechanism Top Panel (A1) x1 Frame Speaker Box Front Panel Net Figure 11-3 (A4)x1 Front Panel (X1)x4 ø1.7x8.9mm (A3)x4 Ø4x16mm Figure 11-1 (A2)x4 MD Main PWB Speaker Cord Copper foil tape CNS1902 Solder joint 24Pin Flat Cable (42) (Caution) The copper foil tape is wound around the 24 pin flat cable (42) to ground them to the case.
MD-X8 REMOVING AND REINSTALLING THE MAIN PARTS (A1)x1 ø1.7x5mm MD MECHANISM SECTION Perform steps 1 to 3 of the disassembly method to remove the MD mechanism. (A2) How to remove the magnetic head (See Fig. 12-1) Soldering x2 Magnetic Head 1. Remove the screws (A1) x 1 pc. 2. Remove the solder joint (A2) x 2 connecting the magnetic head to the head relay flexible board. MD Mechanism Soldering x2 Caution: Take utmost care so that the magnetic head is not damaged when it is mounted.
MD-X8 How to remove the spindle motor (See Fig. 13-1) 1. Remove the screws (E1) x 3 pcs., and remove the spidle motor. Caution: Be careful so that the turntable is not damaged. Turntable Spindle Motor (E1)x3 Ø1.7x2.5mm Figure 13-1 How to remove the optical pickup (See Fig. 13-2) (F1)x3 Ø1.7x9.5mm 1. Remove the screws (F1) x 3 pcs. Caution: Be careful so that the gear is not damaged. (The damaged gear emits noise during searching.
MD-X8 CD MECHANISM SECTION (A1) x2 ø2.6 x5mm For the procedure to remove the CD mechanism from the main unit, refer to Disassembling Procedure, Steps 1~10, and 19. (p.8). Stop Washer (A3) x1 Pickup How to Remove the optical pickup (See Fig. 14-1.) CD Mechanism 1. Remove the screws (A1)x 2 pcs., to remove shaft (A2)x 1 pc. 2. Remove stop washer (A3)x 1 pc., to remove gear (A4)x 1 pc. 3. Remove the optical pickup.
MD-X8 ADJUSTMENT TUNER SECTION fL: Low-range frequency fH: High-renge frequency • AM adjustment and confirmation AM signal oscillator Frequency 400 Hz, 30%, AM modulation Adjusting item • TEST mode setting method Holding down the ENTER button and TUNER (BAND) button, turn on the power. Frequency is set in the memory (initial setting) as shown in Table 15. Call the setting with the PRESET button to use it for tuner circuit adjustment or confirmation.
MD-X8 CD TEST MODE CD test mode setting Any one of test mode can be set by pressing several buttons as follows. Holding down CD PLAY/PAUSE and TACK UP/CUE, turn on POWER. TEST: CD operation test Test Mode Function - CD TEST mode Setting of Test mode Initialization is not performed. Indication of CD TEST mode OPEN/CLOSE operation is manual operation. The pickup can be moved with the ( ) or ( ) button. LASER ON Tracking on the spot. Tracking on the spot.
MD-X8 MD SECTION • Note Remove the MD unit for repeir, ansd after installing it in the set, be dure to reset it and ascertain that reset has been done. Resetting procedure (1) Unplug the AC cord from the socket, and hold down the RESET buttonm provided at the rear side for more than 10 seconds. (2) Once set the TEST MODE (holding down the TEST MODE (X-BASS botton) and botton together, press the POWER button), and then turn off power. 1.
MD-X8 • Test Mode 1. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.) • The adjustment value is output with the aid of system controller interface. 2. AUTO adjustment mode • Automatic adjustment is performed. • The adjustment value is output with the aid of system controller interface. • Continuous playback is performed. (Error rate indication, jump test) 3.
MD-X8 2. AUTO adjustment mode Step No. • Setting Method Remarks Display Step 1 Testmode STOP state [tsm Step 2 Press the CD PLAY button two times. AUTO adjustment menu [AUTO_AJST_] Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic adjustment is started. • In case of high reflection disc changes as follows. PEG→HAG •In case of low reflection disc changes as follows. PEG→LAG→GCG→GEG→LAG End of adjustment If adjustment is OK, Step 4.
MD-X8 3. RESULT mode (final adjustment) Step No. Step 1 Setting Method Remarks Testmode STOP state Display [tsm RESULT menu e ] Step 2 Press the CD PLAY button four times. Step 3 Press once the MD PLAY button. Indication of set value [HAG:__ _ [_RESULT___] ] Step 4 Press once the CD PLAY button. Indication of set value [HBG:__ _ ] Step 5 Press once the CD PLAY button. Indication of set value [LAG:___ ] Step 6 Press once the CD PLAY button.
MD-X8 • If the VOL UP/VOL DOWN button is pressed during setting indication, the setting increases/decreases, and the new setting is stored in RAM. • If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle. • If the REC button is pressed, the setting returns step by step excepting the following case.
MD-X8 Setting Method Step No. Remarks Display Step 9 Press once the CD PLAY button. Comparison level setting in case of FOK generation (when focus is "ON") [FOKLEV f_ Step 10 Press once the CD PLAY button. LPF coefficient setting (normal) in case of FOK generation [FOKLPFn_ Step 11 Press once the CD PLAY button. LPF coefficient setting in case of FOK generation (when focus is "ON") [FOKLPFf_ Step 12 Press once the CD PLAY button.
MD-X8 Setting Method Step No. Remarks Display Step 18 Press once the CD PLAY button. TCRS comparison level 1 for high reflection [TCRSC1P_ Step 19 Press once the CD PLAY button. Comparison level in case of COUT generation (playback) [COTLV P_ Step 20 Press once the CD PLAY button. Comparison level in case of COUT generation (pecord) [COTLV r_ Step 21 Press once the CD PLAY button.
MD-X8 e) TEMP setting Setting Method Step No. Remarks Display Step 1 Testmode STOP state [tsm Step 2 Press the CD PLAY button seven times. EEPROM setting menu [E E P R O M _ S E T] Step 3 Press once the MD PLAY button. Focus setting menu [__Focus___] Step 4 Press the CD PLAY button four times. [___Temp___] Step 5 Press once the MD PLAY button. TEMP reference value setting TEMP setting menu Setting Method Step No.
MD-X8 8. TEST-PLAY mode Setting Method Step No. Remarks Display Step 1 Testmode STOP state [tsm Step 2 Press the CD [TEST_PLAY_] Step 3 Press once the CD STOP button. ADRES setting (Target address initial value is indicated) Press once the MD PLAY button. While searching, set the search output to "H". To start continuous play, return it to "L".
MD-X8 11. EJECT mode Setting Method Step No. Remarks Display Step 1 Testmode EJECT state Step 2 Press oncethe CD STOP button. [__EJECT___] Step 3 Press once the CD STOP button. Record power output state [rpw_______] Step 4 Press once the CD STOP button. Playback power output state [ppw_______] Step 5 Press the CD Step 6 Press the TRACK EDIT button. Max. power output state [xpw_______] MD EDIT button.
MD-X8 EXPLANATION OF ERROR DISPLAY Error display Corrective action Errors Can't REC • Defect occurred successively 10 times during REC-PLAY. • Check that the disc is free from flaw, dust • As a result of occurrence of defect during REC-PLAY the and fingerprint. recordable cluster became zero. Check whether there is any black spot. • Adress is unreadable. REC state connot be set for 20 seconds Check for disc disalignment and run-out. although retry is repeated.
MD-X8 Error display Corrective action Errors BLANK MD • UTOC was read but total TNO and the number of characters of • Perform recording to check that the disc is recordable disc. NAME was 0? DEFECT • Focusing error was caused by shock during REC-PLAY. • Check that the disc is free from flaw, dust, fingerprint and black spot. Check for disc disalignment and run-out. TOC W ERROR • Although UTOC can be read but UTOC cannot be rewritten. • Check that the record head contact is normal.
MD-X8 E2-PROM Data List Slide setting Focus setting Item indication Item indication Setting Setting FG 97 H SLG 35 H FF1 9E H SL2 27 H FF2 E0 H SLDLIM 65 H FZHLEV ED H SLDLEV 16 H FOKLEVn 08 H SLKLVk 55 H FOKLEVf 88 H SLKLVt 3A H FOKLPFn 00 H SLKLVm 55 H FOKLPFf 88 H WAITf 90 H Control setting Item indication Spin setting Item indication SPG Setting 20 SPG—in B8 H H SPG—mid 76 H SPG—out 50 H SP1 10 H SP2 87 H SP3 E3 H SP4 E3 H SP5
REC REC REC – 30 – Figure 30 REC REC WAITf___ CD PLAY FOKLPFf_ CD PLAY REC REC FOKLPFn_ CD PLAY FOKLEVf_ CD PLAY FOKLEVn_ CD PLAY FZCLEV__ CD PLAY FF2_____ CD PLAY CD PLAY CD PLAY CD PLAY CD PLAY CD PLAY WAITm___ CD PLAY COTLVr__ CD PLAY COTLVp__ CD PLAY SLCTm___ CD PLAY SLCTt___ CD PLAY SLCTo___ CD PLAY TDPWt___ CD PLAY REC CD PLAY SPDLIM__ TDPWo___ SP5_____ REC TRKLVt__ CD PLAY CD PLAY SP4_____ TRKLVo__ SP3_____ REC REC CD PLAY CD PLAY TRBLVt__ REC
MD-X8 NOTES ON SCHEMATIC DIAGRAM • Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type. • Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad.
MD-X8 MD MAIN PWB-G(BOTTOM) LAMP PWB-C1 MD MECHANISM SWITCH PWB-H CNP741 1 2 CNS1901 FW1901 5 4 3 2 1 M903 SWITCH B PWB-C3 3 LED PWB-C4 1 1 FW701 3 RD FW701 BK 8 2 1 MD FLAT CABLE (42) 1 24 RX701 CNP701 1 1 2 MD MAIN PWB-G (TOP) 8 1 CNP1604 SWITCH A PWB-C2 CNP771 CNP1601 1 4 CNP1904 CNS1902 24 1 2 1 CNP12 LMP701 JOG701 6 RD SWITCH C PWB-C5 CNP774 1 BK 1 2 1 2 CNP1602 M901 1 CNS1101 M902 4 1 CNP721 8 CNP773 1 RD 1 2 1 2 BK 28 CNP1603 DISPLAY PWB-C6 WH
WH 1 2 CNS1904B RD CNS850 1 2 1 1 4 CNS1904A 1 2 CNP850 8 1 4 CNP1904 POWER PWB-B1 8 WH OM) RD CNS830 MD-X8 8 BI850 1 BI830 1 MD OPTICAL PICK UP UNIT FLEXIBLE PWB T801 POWER TRANSFOMER RD 1 2 BR CNS961 1 2 CNP261 M971 FAN MOTOR CNP820 14 MAGNETIC HEAD(40) 1 POWER AMP.
Figure 34 BLOCK DIAGRAM (1/4) – 34 – M M903 LOADING MOTOR M M902 SLED MOTOR M FOR LIGHT RECEIVING SECTION RF FOR LIGHT RECEIVING SECTION ERROR SIGNAL LOADING SW1956 WRITE PRO SW1952A DIRECT SW1952B LEAD IN SW1953 MD PLAY SW1954 MD RECORD SW1955 MD Q1251~Q1254 D4.3V IC1601 5-CH MOTOR DRIVER M56758FP MONITOR DIODE LAZER DIODE D3.2V D6.5/4.75 ~ 5.25V D3.2V IC1101 RF SIGNAL PROSESSOR IR3R55 D4.
M701 SPINDLE MOTOR 7 6 36 35 34 29 28 27 26 20 CL, DAT, SELIAL CONTROL/CE LD0 62 VCC1 64 Q1 +5V 44 43 41 40 ~ 32 20 ~ 12 10 53 ~ 58 61 CAM SWITCH SWB101 SWB102 9 XIN 45 XL1 16.934MHz IC2 LC78623D SERVO SIGNAL CONTROL RCHO RVSS LVSS LCHO SWB103 SWB104 IC1 IC2 CLK CL DAT CE CLV+ EFMIN EFMO PU-IN SW SL+. SL–. DRF +B1 50 51 52 53 LASER DRIVER IC1 LA9241M SERVO AMP.
FM/AM OUT 9 +B4 CF351 VCC 17 5 4 IN GND 8 CF352 AM IF +B4 T351 OUT X351 IC303 FM IF DET./FM MPX./AM IF, AM OSC IF LA1832 15 14 Q353 Q354 R L MPX VCO CUT 12 MONO/ST 1 24 FM MONO/ST AM RF IN FM IN XT21 AFC AM IN 22 23 10 11 16 15 IN DO 6 Q371 TO µ-COM CL 5 4 3 DI CE 22 OUT FM IF CF302 21 12 STEREO 21 2 OUT 17 SD 6 7 +5V IF IN 10 13 7 VOLTAGE REGURATOR +B4 MPX PHASE 11 IC302 TC72131 PLL CONTROLLER 18 OSC.
MD-X8 IC905 JK902 8 4 JK901 HEADPHONES SO201 SPEAKER TERMINALS – AC POWER SUPPLY CORD AC120V 60Hz C IC605 TC7WU04F 4 FAN MOTOR M971 ON–OFF FAN MOTOR SW Q271 Q272 1 +B8 8 4 31 32 33 34 6 IC604 PC910 IC751 BA13058 3 IC603 PC910 5 +B8 6 2 2 1 ~ ~ LAMP741 2 IC904 MULTIPLEXER 74HC153P ~ 22 LAMP747 11 13 +B7 +B1B 16 8 9 BL Q862 Q863 25 L-OUT R-OUT SW701~707 KEY SW721~731 SW771~776 SW781~789 15 RESET 1 LCD 3 52 71 9 A MIC MUTE L-MUTE 38 SYSTEM CONTROLL MICON 82
MD-X8 MIC PWB-C7 MIC VOLUME VR601 20K(B) 10 11 R603 68K EX_MD-R R615 1.5K AUX_OUT-L C601 10/50 7 IC601 NJM4558D MIC AMP. AUX_IN-R AUX_IN-L MICROPHONE JK601 C605 220P – 2 + 3 5 1 R601 1K 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 1 2 3 4 CNS600B 10 11 12 TO MAIN PWB CNP915 P40 1-G TO POWER AMP. CNP210 P55 12-D 6 +10V –10V MIC_L-CH A_GND C612 0.022 BI600 CNS600A C R607 330 R617 1K 4 C613 0.022 C611 10/50 Q601 KTC3199 GR C603 220P EX_MD-L AUX_OUT-R NC R620 1.
MD-X8 FM SIGNAL AM SIGNAL C343 33P C361 0.022 MAIN PWB-A(1/3) R361 4.7K 10 11 C370 1/50 6 7 IC302: PLL CONTROLLER 8 9 10 11 +B R378 82K R398 5.6K 10V R383 5.6K C391 47/16 C390 5600P D352 1SS133 R360 4.7K I 4 3 2 1 VT F OUT GND IF OUT FE301 FM FRONT END J K Q371 KTA1266 GR 4.8V 4.9V R371 1K 0V 0V ZD352 1 2 3MTZJ3.9B 3.6V R387 0V Q361 22K KRC107 M D351 1SS133 +B SM SD TUN MUTE DI CE DO CL D GND 8 7 6 5 ANT GND GND VCC C384 0.
MD-X8 1 2 3 4 5 6 R949 1K Q998 KRC107M 2 0V 3 C936 0.022 R1059 47K R987 1K LCK2 R989 1K LCK1 R991 1K CLK R993 1K DATA R995 1K SERCH R998 1K R1000 1K MD_ST R1002 1K RESET C917 100P C918 100P C919 100P C920 100P CLK RESET JOG_1 91 A_11V A_-11V MIC_L-CH A_GND MIC_R-CH MIC_SW RLY_OUT 80 SL– 78 DRF RES 19 18 22 21 17 20 16 P43 12-B 4.8V 0V 4.8V IC903 PST9140 RESET 2 10 9 15 VOLTAGE VSM SRS_PASS/0N AUX_A AUX_B TP912 TP913 TP914 3 TP915 MIC_R-CH MIC_L-CH C915 0.022 PIN NO.
MD-X8 R1052 R1051 R1050 56K 2.7K 220K INVERTER IC904 74HC153P E Vcc 16 2G 15 A 14 2C3 13 2C2 12 2C1 11 2C0 10 1G B 1C3 1C2 1C1 1C0 1Y GND R1053 82 8 5 4 3 2 IC905 74HCU04 MULTIPLEXER C933 1/50 L904 2.2µH R514 3.3K R513 3.3K L906 2.2µH CNS950B 3 1 4 2 5 3 0V +B +B LOAD_SW R1064 10K R1063 10K 4.8V 0V Q904 2SC1740 SR R1092 2.7K 6 7 8 4 5 6 R1033 10K C950 33P R1091 2.
MD-X8 P40 TP37 TP35 3 0V 1 CD_A_GND C541 22/25 29 28 3 3.7V CD SIGNAL R541 Q542 47K DTC363 TS CD_R-CH 0V 0V 0V –10V 0V 0V 0V 10V CD_MUTE FM SIGNAL VOLTAGE B 22 0V 0V Q C 1 0V R587 100K R569 18K 6 5 3 R586 3.9K 2 4 0V R566 8.2K R550 47K R570 18K C593 0.022 R565 8.2K R572 100K TP16 TP15 TP14 TP13 TP12 TP11 TP10 TP9 TP8 10 11 12 13 14 6 7 8 9 10 R479 22K R480 47K R482 33K R484 1.5K C461 0.0047(ML) R481 3.9K R460 47K 11 12 R463 100K 12 C534 0.
MD-X8 P40 10-H 33 34 R428 100K R419 5.6K 0.7V Q423 KTC3199 GR R420 5.6K 0.7V Q424 KTC3199 GR 33 C537 1/50 C535 0.0047 (ML) C539 10/16 6 7 3 1 Vee Vss Vdd 8 R438 33K 16 C404 0.022 R403 47K R447 1K R448 1K R446 330 R445 330 C448 0.022 R436 390K R440 3.9K C444 22/50 R404 47K C402 47/25 R402 560 (1/2W) ZD402 UZ7.5BSB C543 1/50 +B +B R597 2.2K 509 47K 598 .2K R435 390K C442 2 150P C440 C438 4 2200P 8200P +B C403 0.022 –B C441 150P JK502 PHONO INPUT C437 8200P R439 3.
MD-X8 12 C399 C371 CF351 R353 R359 D353 ZD351 R1006 R962 C364 R351 R391 CNS1000A R1017 R1055 CNP980 R1020 R1030 R1056 R909 R954 C916 C915 R1044 Q901 R964 R961 R960 R955 R957 R959 IC903 1 CNP970 3 2 4 3 2 1 CNP920 1413121110 9 8 7 6 5 4 3 2 1 R969 R971 R966 R953 R956 R958 R1046 R1034 R951 R965 R950 R952 C922 R901 C925 R1019 R1054 R521 Q501 E C B C555 C493 R509 WH R498 R541 R526 CNP990 1 2 3 4 5 6 7 B C E Q541 C557 CN R597 Q E C B 28 C465 R466 C469 R45
C338 D304 D302 D303 D301 C336 C301 1 R371 E C B C394 CNP999 11 R372 R373 R374 CNS999A R1071 D905 CNP910 R414 R414 AUX OUT R-CH R413 C405 L-CH R435 C410 R-CH R438 C440 R410 C438 L-CH L411 R417 R418 R415 L413 R416 COLOR TABLE R402 R401 L412 D421 BR D422 RD(R) RED OR ORANGE YL YELLOW GR GREEN L906 15 IC511 5 55 50 R504 C550 521 C518 R501 C512 C515 4 R505 7 R1040 R1047 C932 10 CNP995 1 2 C516 C511 R506 C509 1 2 3 VIOLET GY GRAY WH(W) WHITE BK
MD-X8 C LD FO+ FO– TR– ACTUATOR C3A G M702 SLED MOTOR SW702A PICKUP IN M C35 0.1/50 + FSTA VCC REF GL C14 0.01 JP+ + – R41 4.7K C45 4.
MD-X8 IC5 PIN VOLTAGE NO. 1 2.5V 2 2.5V 3 0.2V 4 2.5V 5 2.5V 6 2.6V 7 2.6V 8 0V 9 0V 10 0V 11 0V 12 2.6V 13 2.6V 14 2.5V 15 2.5V 16 0V 17 5.9V 18 0V 19 0.6V 20 5.9V 21 2.5V 22 2.5V 23 2.7V 24 2.6V 25 2.6V 26 0V 27 0V 28 0V 29 0V 30 2.6V 31 2.6V 32 2.5V 33 2.5V 34 0V 35 0V 36 0V +B CD SIGNAL C56 100P C58 100P +B +B C92 0.022 DIGITAL OUT CD_GND R82 100 L1 0.82µH C51 0.022 C52 CD_7V 100/10 MAIN CAM MOTOR DRIVER IC92 TA7291S +B R84 22 1 2 3 4 5 C95 0.
MD-X8 MOB1 MAIN CAM MOTOR A MOB2 TRAY MOTOR YL RD BR OR M971 FAN MOTOR BIM1 YL TO CD SERVO PWB 4 RD CNP11 B CNS961 1 2 BR 1 TO POWER AMP.
MD-X8 VR602 INPUT LEVEL R645 BI630/CNS630 C611 1110 9 8 7 6 5 4 3 2 1 4 2 1 C642 4 3 2 1 1 2 3 R642 IC603 C640 R653 R651 R654 R643 IC602 1 2 3 4 C641 R655 8 7 6 5 8 7 6 5 C646 C639 ZD601 4 1 IC605 8 5 BI620/CNS620 R657 R640 5 6 1 2 3 4 IC604 R644 R632 C632 R656 5 6 7 8 R634 L631 R636 Q603 E C B 1 2 3 4 5 6 BI151/CNS151 C633 R623 R635 R633 R631 C613 8 7 6 5 BI600/CNS600A/B C631 C609 R605 C605 C650 C612 C614 5 6 2 3 R650 R613 C601 R601 R621 IC601 R60
MD-X8 DISPLAY PWBA 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 LCD751 DISPLAY B FROM LCD751 C BACK LIGHT LMP742 LMP743 9 8 7 6 5 4 3 2 1 LAMP PWB-C1 LMP744 CNP741 LMP741 BL+B(HIGH) BL_GND FROM POWER AMP.
MD-X8 BI755 R755 39K 5 4 +B IC752 BA10358 4 +B +B +B – + C754 2.2/50 7 – + 8 C756 2.2/50 9 8 7 6 5 4 3 2 1 4 3 2 1 4 3 2 1 L752 4.7µH 2 3 5 6 PIN NO. 1 2 3 4 5 6 7 8 R760 220 C763 47/16 4 +B C758 2.2/50 +B +B +B TO MAIN PWB CNP975 P40 1-B TO MAIN PWB CNP970 P40 1-C +B C760 2.2/50 VOLTAGE 5.1V 5.1V 5.1V 0V 4.3V 4.3V 4.3V 12V IC752 PIN NO.
MD-X8 LAMP PWB-C1 2 SWITCH A PWB-C2 LED772 1 CNP741 A R792 SW789 MD PLAY/ PAUSE 1 18 C772 SW788 MD STOP 5 C773 IC771 C771 B 15 10 9 R776 C774 8 7 6 5 4 3 2 1 CNP771 C775 R788 4 3 2 1 CNP772 LMP741 R787 R732 R777 LMP742 R778 VOLUME UP DOWN C JOG701 LMP744 CNP774 1 2 3 4 5 6 D SW787 3D SURROUND R786 CNP773 LMP743 SW786 X-BASS 1 2 3 4 5 6 7 8 R785 SW785 EQUALIZER SW782 R782 MULTI CONTROL RIGHT R784 R783 SW784 MULTI CONTROL UP E SW783 MULTI CONTROL LEFT SW781 MU
MD-X8 SWITCH B PWB-C3 LED PWB-C4 3 1 1 R712 3 FW701 FW701 LED706 SW701 POWER SW707 COMPUTER NETWORK R706 LED705 SW706 MD EJECT SW703 CD/MD MD EDIT TRACK SW704 CD/MD MD EDIT CD MD SW702 CD/MD MD EDIT MD MD SW705 MD REC R703 C701 C703 R702 3 2 1 C702 R704 R713 RX701 REMOTE SENSOR R714 R711 R701 CNP701 8 7 6 5 4 3 2 1 R705 Q702 LMP701 B C E SWITCH C PWB-C5 SW723 NAME/ TOC EDIT SW722 TIMER/ DELETE LED721 SW728 TUNER (BAND) SW727 AUX R727 SW724 MESSAGE R726 R723 DOWN SW725 TUNI
MD-X8 FM SIGNAL POWER AMP.PWB-B2 IC201 STK40705 POWER AMP. 10 11 12 13 14 D 15 5 C204 470P R202 100K PROTECT POWER P_IN 11 12 13 14 15 Q251 KTC3199 GR R247 2.2K R210 56K R259 0.2 R266 4.7 D872 1SS133 +B +B +B1-1 ZD241 UZ11BSC C237 GND1-1 4700/50 C241 47/25 C242 0.022 –B1-1 +B C238 4700/50 C818 0.022 C815 100/10 6.2V C816 100/10 E A_GND ZD810 MTZJ6.2C C817 0.022 2 C872 0.1/50 15V Q820 KTC3199 GR 9.9V C822 0.022 R871 100 4.6V POSISTOR RP821 9.9V 10.
Q271,Q272: MOTOR DRIVER R260 0.2 (1W) C218 0.1 (ML) L204 R228 3µH 4.7 0V R225 1K 0V Q260 KRC107 M 0V 2 R277 47K 0.7V R278 100 3 0V 4.4V 3 0V Q273 KTC3199 GR R275 3.9K R274 470K C297 47/50 C271 10/50 R273 1K R239 330 D272 1SS133 ( ) : Power OFF M 2 0V R270 270 1 0V Q274 KRC107 M SPEAKERS TERMINALS SO201 + – – + R263 12K RLY C262 10/50 1 2 M971 FAN MOTOR D261 1 1SS133 0V C261 10/50 266 4.
F E 1 2 3 FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE, SAME RATING FUSES. C806 CAUTION: B D814 C805 D815 D813 L801 4 Figure 56 WIRING SIDE OF P.W.BOARD (7/10) – 56 – 5 D805 C803 D802 D803 D820 D804 1 2 3 4 5 6 7 8 C804 F804 1.6A L 250V A AFIN D' ASSURER UNE PROTECTION PERMANENTE CONTRE LES RISQUES D' INCENDIE REMPLACER UNIQUEMENT PAR LES FUSIBLES DE MÊME TYPE ET DE MÊME REGIN ATTENTION: D R812 MD-X8 POWER PWB-B1 BI850/CNS850 C891 C807 R801 F805 1.
MD-X8 POWER AMP.
MD-X8 SITUATION : A TP1141 2 RF3 EFMO RF2-1 39 38 TP1142 C1106 0.47 37 ADAGI ADAGC C1109 1 40 36 SW ADIPI C1119 330P ADIPO 34 ADLPFO DIFF REFI IC1101 IR3R55 RF SIGNAL PROCESSOR 33 TCGO AIN AOUT BIN BOUT EIN EOUT LOGIC CLOCK DATA DVCC 16 17 18 19 20 21 22 23 24 C1105 1 29 28 27 26 25 E TP1129 TP1150 L1102 0.47µH F R/P R1166 1.2K C1145 0.
MD-X8 SYRS SYRD SYWR SYD7 SYD6 SYD5 1 TP1131 36 ADIPI C1119 330P 35 ADIPO TP1140 R1155 56K TP1139 TP1274 4 34 ADLPFO 33 TP1138 22KI 32 31 WBO PF TCGO AOUT BOUT EOUT DATA DVCC 2 23 24 29 28 27 26 25 TP1136 R1154 22K TP1135 R1153 22K TP1134 R1152 22K TP1133 R1151 22K TP1132 R1150 22K TCG BOUT-IN FOUT-IN TCG BOUT-IN FOUT-IN C1202 1 1 2 3 4 5 6 7 8 9 10 WBO-I 11 C1211 1 12 13 14 15 16 TP1220 FODRF FODRR TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR R1653 100K R1651 R1657 R1655 R1661
MD-X8 SITUATION : 6~ 9 Waveforms A should be measured by inserting the circuit, as shown in the figure. 100K Connect an oscilloscope. 6 R1211 220 19 20 21 22 23 24 25 XRST SYD7 SYD6 SYD5 SYD4 SYD3 SYD2 SYD1 SYD0 RSTX DGND VDD1 DINTX MCCK COUT SENSE FOK SFSY SBSY SBO X176KO FODRF FODRR TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR SBCK TEMON TOTMON 48 49 50 26 27 28 TP1214 23 22 R1254 220 66 65 64 C1203 1 63 62 R1202 1M 60 59 58 57 56 TP1273 55 53 R1261 10K 52 51 C1954 15P (CH) R1963 1.
MD-X8 MD MAIN PWB-G n in the figure. scilloscope. DADATA ADDATA DFCK BCLK LRCK AND GATE IC1916 74VHC08FT C1951 0.047 10 11 12 13 5 4 3 2 1 0 9 Vcc TP1904 CNP1904 1 2 3 4 DIGOUT GND GND DIGIN 1 2 3 4 CNS1904A 1 2 CNS1904B TO MAIN PWB CNP961 P41 12 - B R1973 6.8K C1927 0.047 R1964 6.8K C1957 100/6.3 R1965 10K 6 14 R1974 220 TP1902 C1964 0.001 R1969 C1958 56 0.
MD-X8 TP110 TP110 TP110 TP110 TP110 TP110 TP110 TP110 TP110 TP111 TP111 TP111 TP111 TP111 TP111 R110 10K TP112 TP111 TP111 TP112 TP112 TP112 TP112 SITUATION : A 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 3 SW +2.8V B LVVOUT APCOUT LDVCC DGNG DGND LDON LDVAR A COM RF1 F E RF3 RF4 VCC AGND MP/R RF2 APCIN DGND LVVIN FT+ F+ T9 8 7 6 5 4 3 2 1 2 12 L.
DTEMP MD-X8 VSS MCCK 16 VCC 14 MCCK R1415 1K 15 20 21 22 23 LD+ LD– R1611 12K 25 26 27 28 CIN 29 INNSW IN2+ 17 MUTE1 28 IN5– 18 MUTE2 19 SS.GND VREF 20 21 VREFO 27 IN4– OUT4 VM4– VM5+ VM5– SLP SLN C1424 0.022 DATA LATCH CLOCK TP1455 TP1456 TP1457 R1422 10K STID R1664 10K 1 2 3 Q1402 RNC1404 3 2 1 2 3 Q1403 RN2404 SLDRR 2 3 1 1 Q1401 RN2404 Q1404 RNC1404 R1414 PRO 10K EEPD VM4+ 26 25 IN4+ SPN SPP R1412 100K 29 OUT5 R1662 10K R/P R1409 1K 30 IN2– C1657 0.
MD-X8 IC1990 74AC04FS INVERTOR TP1713 TP1712 L1203 4.7µH L1201 0.47µH A7 A8 D SITUATION : A C1711 0.01 24 C1716 0.01 VREFD VSSO VOUTL VDDO VOUTR AVDD AVSS TEST2 TEST3 28 27 26 25 24 23 22 21 20 R1423 10K IC1701 UDA1340 A/D,D/A CONVE C1709 0.047 VSSA VDDA VINL VREFA VINR VADCN VADCP TEST1 OVERFL R1424 10K 76 67 66 65 64 TP1413 TP1414 TP1415 C1406 1 62 61 60 59 58 R1475 1K R1476 1K EEPK EEPD EPCS R1474 PRO 1K SYRS SYRD SYWR SYSD7 SYSD6 54 53 52 51 44 45 46 47 48 49 50 VREF3.
C1711 0.01 TP1713 TP1712 D A MD-X8 R1712 100K C1716 0.01 L3DATA VREFD VSSO VOUTL VDDO VOUTR AVDD AVSS TEST2 TEST3 DATAI DATAO WS BCK L3DATA 28 27 26 25 24 23 22 21 20 19 18 17 16 15 MD PLAYBACK SIGNAL IC1701 UDA1340 A/D,D/A CONVERTER VSSA VDDA VINL VREFA VINR VADCN VADCP TEST1 OVERFL VDDD VSSD SYSCLK L3MODE L3CLK MD RECORD SIGNAL 713 39K TP1711 TP1710 C1714 47/4 C1713 22/4 1 1 C1717 0.
MD-X8 TO MAIN PWB CNP950 A FROM MAGNETIC HEAD CNS1903 MD FLEXIBLE PWB (42) 24 Q1820 D1252 CNP1252 1 2 C1251 D1251 R1456 R1452 R1454 R1458 R1460 R1462 R1464 R1466 L1950 LR190 C1722 C1724 C1729 CJ172 24 2322212019181716151413121110 9 8 7 6 5 4 3 2 1 Q1252 L1251 CNS 1902 B Q1251 1 C1252 R1251 1 Q1822 R1939 R1459 R1463 C1425 C1904 C1927 C1254 R1967 R1969 R1711 R1710 R1968 R1964 7 R1409 10 L1203 C1210 R1266 50 26 51 R1263 45 40 30 35 7 R1962 14 C1992
MD-X8 • 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.
MD-X8 VOLTAGE (MD MAIN PWB) Q1801 IC1907 PIN VOLTAGE NO. E 5V C 5V B 43V PIN VOLTAGE NO. 2.8V 1 2.6V 2 4.9V 3 2.6V 4 1.6V 5 0V 6 0V 7 4.9V 8 0V 9 10 2.2V 11 5V 12 5V 13 0V 14 3.2V 15 3.1V 16 5V Q1802 PIN VOLTAGE NO. E 0V C 0V B 0.15V Q1803 PIN VOLTAGE NO. E 0V C 0V B 3.1V Q1807 PIN VOLTAGE NO. E 3.95V C 3.2V B 3.3V Q1820 PIN VOLTAGE NO. E 3.2V C 3.18V B 2.4V Q1821 PIN VOLTAGE NO. E 0V C 0V B 3.08V Q1822 PIN VOLTAGE NO. E 0V C 0V B 0.1V Q1451 PIN VOLTAGE NO. E 0V C 3.18V B 0.1V Q1401 PIN VOLTAGE NO.
MD-X8 WAVEFORMS OF CD CIRCUIT STOP FOCUS 1 2 PLAY SERCH 5ms 0.50 V IC1 20 F.E 5ms 5.0 V IC1 54 DRF 4 5 0.5ms 5.0 V TES 3 0.5ms 1.00 V HF 8 0.5ms 0.50 V JP 9 0.5ms 1.00 V TE NORMAL DISC TN0=01 10 20ms 1.00 V SPO 11 20ms 2.00 V CLV+ 3 REVIEW TCD-712 (140mm) TN0=01 4 5 0.5ms 5.0 V TES 3 6 50ms 10.0 V JP+ 10 50ms 1.00 V SPO 11 50ms 2.00 V CLV+ 50ms 0.50 V JP 9 50ms 1.00 V TE 6 0.5ms 10.0 V JP+ 7 0.5ms 10.0 V JP- 8 0.5ms 0.50 V JP 9 0.5ms 1.00 V TE 50ms 10.
MD-X8 WAVEFORMS OF MD CIRCUIT PLAY STATE Stopped NORM: 100M S/s CH1 500mV AC 10:1 CH1 2V DC 10:1 500ns/div 1 Offset CH1 CH2 CH3 CH4 T --0.000V 0.000V 0.000V 6 Record Len Main 500 Zoom 10 TP1274 (EFMMON) 1 7 Hold Off MIN Trigger NORMAL EDGE CH1 CH1 500mV AC 10:1 8 T CH1 CH2 CH3 CH4 1 Record Len Main 10K Zoom 100 Detay 0.000 00s TP1217 (TOTMON) Hold Off MIN 3 Trigger AUTO EDGE CH2 TP1212 (TCRS) 4 CH1 2V DC 10:1 1 ----0.000V 0.
MD-X8 Stopped NORM: 1k S/s CH1 2V DC 10:1 9 CH2 2V DC 10:1 CH3 5V DC 10:1 CH4 5V DC 10:1 1997 / 08 / 04 11:23:12 T CH1 5V DC 10:1 1s/div CH2 5V DC 10:1 CH3 52V DC 10:1 2us/div Filter SMOOTH OFF BW FULL TP1216 1 6 PLAY Stopped NORM: 100M S/s 1997 / 08 / 04 14:19:52 T Offset 0.000V 0.000V 0.000V 0.000V CH1 CH2 CH3 CH4 TP1218 T Filter SMOOTH OFF BW FULL 18 DADATA Record Len Main 10K Zoom 100 2 20 Detay T Record Len Main 2K Zoom 20 BCLK Detay 0.000 000 00s 2 0.
MD-X8 TROUBLESHOOTING (CD SECTION) When the CD does not function When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check the following items. Remove the cabinet and follow the troubleshooting instructions.
MD-X8 • The CD operation keys work. Check the FOCUS-HF system. Playback can be performed without a disc. Yes Focus search OK Does the pickup move up and down two twice? Yes Does the output waveform of IC1 pin 16 (FD) match that shown in Figure 73-1? No Check the area around IC5 to CNP2. No Yes Focus search is performed two times when play operation is done without disc. 0.5s 0.50 V IC1 16 FD Check 4 MHz of IC1 pin 50 (CLK) line and the microcomputer data of pin 51 (CL), pin 52 (DAT) and pin 53 (CE).
MD-X8 • Check the tracking system. Check the waveform of IC1 pin 7 (TE). The waveform shown in Figure 74-1 appears, and no disc state appears soon. Yes Playback is possible in TEST mode. Yes Data cannot be read. Tracking servo is inoperative. Yes Playback is impossible Yes although initialization is possible. Check the periphery of IC1 pin 8 to pin 15, and IC5 to CNP2. Normal jump is Yes impeded, and the program top cannot be reached. Check the periphery of IC1 pin 14. Check the VCO-PLL system.
MD-X8 • Although HF waveform is normal and time indication is normal, no sound is not output. Check the IC2 pin 48 (EFLG). Usually, the number of pulses of flawless disc is 100 pulses/sec or less. No Yes Check the IC2 pin 37 and pin 40. Yes Check IC501 and POWER AMP. IC201.
MD-X8 TROUBLE SHOOTING (MD SECTION) When MD fails to operate If the objective lens of optical pickup is contaminated, MD may fail to operate. At first, clean the objective lens to check playback operation. If MD fails persistently to operate, perform checks as follows. If dust or foreign substance is accumulated on the pickup lens, playback is disturbed and indication of TOC (content of tracks) may be disabled. Before adjusting check that the lens is clean. If the lens is contaminated, treat it as follows.
MD-X8 • Disc loading is not normal. Yes Is disc loaded when it is inserted? No Check CNP1601 and SW1956. Is the pin 4 of CNP1601 set to L state? No Yes Is change observed on the pin 23 or 24 of IC1601? Check IC1401. No No Yes Is change observed on the pin 30 or 31 of IC1601? Check CNP1604 and IC1601. No Yes Check CNP1604 and CN1604 Yes Is ejection performed when the MD taking-out button is pressed? No Yes Disc retracts soon after completion of disc ejection. Yes Check CNP1601 and SW1956.
MD-X8 • Normal playback When it has been confirmed that EEPROM value is normal in the TEST mode Is initialization performed normally when high reflection disc is played back? Does the playback time display advance? No No Check IC1201 Does disc rotate normally? No Is lead-in switch turned on in the TEST mode when the pickup is on the innermost periphery (Is the pin 6 of OC1401 on L level?) No Yes Is an attempt to read repeatedly the TOC section of low reflection disc made? Check SW1953, mechanism swi
MD-X8 • Record and playback operation Insert the low reflection disc, and after verifying the audio output in the normal mode playback set the record/playback TEST mode Recording from start address cannot be performed. Yes Is RF waveform output to the pin 1 IC1201 or TP1274 when playback is performed after recording? Check whether the disc is record-prohibited.
MD-X8 • Disc motor fails to run Does waveform appear on the pins 24 and 25 of IC1201 in the TEST mode focus gain coarse adjustment step? No Check soldering joint and parts of pins 24 and 25 of IC1201, and peripheral circuit. No Check soldering joint of PWB of completed IC1601 and CNP1601 disc motor. No Check the soldering joint of pins 20 and 21 of IC1201, IC1601, IC1601, CNS1101. Yes Check the waveform on the pins 22 and 23 of IC1201, check the peripheral parts and soldering joint.
MD-X8 FUNCTION TABLE OF IC IC901 RH-iX2679AFZZ:System Control Micon (iX2679AF) (1/3) Pin No.
MD-X8 IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) (2/3) Port Name Input/Output Pin No. Terminal Name 33 TRAY SW-A P124 Input Main tray OPEN completion detection switch input H: OPEN completion state when SW is OFF. L: Other state when SW is ON. This switch provides the CLOSE function when the tray lid is pressed.
MD-X8 IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) (3/3) Port Name Input/Output Pin No.
MD-X8 (EX MD) SW1 DUBB MODE (EX MD) SW2 STOP (EX MD) SW3 SKIP +1 (EX MD) SW4 SKIP +10 (EX MD) SW5 PLAY NORMAL (EX MD) SW6 PLAY 1TRACK (EX MD) SW7 NEXT (EX MD) SW8 DATA SELECT (EX MD) SW9 NAME SELECT (AUDIO) SRS PASS/ON (AUDIO) 4052 A (AUDIO) 4052 B (DISP) LED1 M>M EDIT (DISP) LED2 C>M EDIT (DISP) LED3 M REC (DISP) LED4 M PLAY (DISP) LED5 C PLAY (DISP) LED6 DISC1 PLAY (DISP) LED7 DISC2 PLAY (DISP) LED8 DISC3 PLAY (DISP) LED9 MD IN (DISP) LED10 COMPUTER (DISP) LED11 SRS-SRND Not used To be connected to VSS
MD-X8 IC1101 VHiiR3R55//-1:RF Signal Processor (IR3R55) Pin No. Function Terminal Name 1 RF1 RF signal input terminal 1 Input of RF signal output of pickup 2 RF2 RF signal input terminal 2 Input of RF signal output of pickup 3 RF3 RF signal input terminal 3 Input of RF signal output of pickup 4 RF4 RF signal input terminal 4 Input of RF signal output of pickup 5 REFI Reference voltage amp. input terminal 6 REFO Reference voltage amp.
MD-X8 IC1201 VHiLR37648/-1:ENDEC (LR37648) (1/2) Pin No. Function Terminal Name Input/Output 1* EFMMON 2 AVCC Output — 3 EFMI Input 4 AGND 5 AIN Input Focus error signal A 6 EIN Input Tracking error signal E 7 TCG Input Track cross signal 8 BIN Input Focus error signal B 9 FIN Input Tracking error signal F — EFM monitor output Analog power EFM signal input from RF amp.
MD-X8 IC1201 VHiLR37648/-1:ENDEC (LR37648) (2/2) Pin No. Function Terminal Name Input/Output 54 TESO1 Output 55 TESO3 In/Output PLLOSC. Microcomputer extension output port 3 in case of selection 56 TEST4 In/Output EXTCLK. Microcomputer extension output port 4 in case of selection 57 CDDATA In/Output High speed dubbing CD data input. Microcomputer extension output port 5 in case of selection 58 CDLRCK In/Output High speed dubbing CD LR data input.
MD-X8 IC1401 RX-iX0227AWZZ:MD System Micon Control (IX0227AW) (1/2) Pin No.
MD-X8 IC1401 RX-iX0227AWZZ:MD System Micon Control (IX0227AW) (2/2) Pin No.
MD-X8 1 RF2 2 RF3 3 GOUT ATTR EFMAGI EFMAGC AGND AVCC EFMI EFMO RF2-1 ADAGI ADAGC 48 47 46 45 44 43 42 41 40 39 38 37 EFM AGC RESISTOR & SW RF1 POUT IC1101 VHiiR3R55//-1:RF Signal Processor (IR3R55) 36 ADIPI 35 ADIPO DIFF 34 NC DIFF RF4 4 REFI 5 REFO 6 RFADD 7 TCGI 8 29 TCGO AIN 9 28 AOUT BIN 10 27 BOUT 33 ADLPFO ADIP AGC 32 22KO 31 22KI BIAS EIN 11 30 WBO HPF LPF 26 EOUT LOGIC 13 14 15 16 17 18 19 20 21 22 23 24 AVCC XSTBY XDISC
MD-X8 PARTS GUIDE MODEL MD-X8 “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For U.S.A. only Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call Toll-Free; 1-800-BE-SHARP MARK: SPARE PARTS-DELIVERY SECTION Explanation of capacitors/resistors parts codes Capacitors Resistors VCC .......................
MD-X8 NO.
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MD-X8 608 16 611 35 45 A 8 12 10 5 11 B 18 609 608 611 CNS1903 29 39 30 C 40 B1 609 13 37 A1 607 B2 41 25 21 9 C 22 3 33 A2 19 610 D 601 610 26 20 31 601 SW1956 601 37 601 23 604 17 38 607 38 605 607 42 607 E PWB-H 6 SW 1952A/B SW1955 SW1953 SW1954 15 603x2 FW1901 1 7 32 46 CNS1904 A/B 14 24 F 603x2 PWB-G 602 612x4 34 611 602 4 B2 A1 C G B1 A2 2 M903 M902 36 611 M901 H 606x3 1 2 3 4 Figure 11 MD MECHANISM EXPLODED VIEW – 11 –
MD-X8 306-2 306 A 306-1 306-3 701 704 B 304 701 C 702 302 702 301 D 303 703x2 E M701 F 307 308 M702 305x2 G SW702A H PWB-D 1 2 3 4 Figure 12 CD MECHANISM EXPLODED VIEW – 12 – 5 6
MD-X8 804 120 120 116 A 113 112 112 119 124 119 124 B CD Mechanism 114 805x4 803x2 120 109 131 C 128 802 112 115 125 119 124 101 802 122 804x3 D 127 104 105 126 104 E 103 111x2 132 106 108 801 x2 801x2 139 138 137 103 130 107 110x2 102 133 103 134 108x3 101 108 135 F 135 G SWB 108 SWB 107 SWB 106 PWB-F SWB 105 802 136 108 134 135 108x3 121 SWB101 ~104 803 135 136 108 134 135 108x3 MOB1 123x4 MOB2 129 135 136 H 80mm 1 2 3 4 Figure 13 CHANGER MECHAN
MD-X8 609 602x2 611x5 MD Mechanism Unit 620 PWB-B3 610x2 609 278 258 M971 604x6 236 A PWB-C4 PWB-C3 609x2 272 B 201-11 C 201 204 272 PWB-C2 603x2 201-1 201-3 203 202 615x3 201-4 201 201-18 201 201 -16 PWB-C7 -8 -5 201 201 -7 -15 201-9 263x2 262x2 PWB-C6 257 604x2 615 604 PWB-C1 604x2 243 201-2 201-28 275 Silicon Grease 617x2 267 609 PWB-E 609x2 605 245 610x2 269 615 265 Q861 609x2 Q880 264 619 607x2 609x2 239 255 Silicon Grease 609 277 (With UNA901) PWB-A 609x2 PWB-B
MD-X8 TWEETER SP3 (L-CH) SP4 (R-CH) C1 3.
MD-X8 PACKING OF THE SET SSAKH0022AWZZ Polyethylene Bag, Unit SPAKA0133AWZZ Packing Add., Left/Right L Mark P O T FR TLABN0001AWZZ Label, Serial Month ON T AM Loop Antenna R Mark FM Antenna Speaker Cord 92L411-0086 Polyethylene Bag, Speaker 92L412-0088 Packing Add., Top/Bottom, Speaker Remote Control Front Operation Manual Recording Mini Disc Spanish Tag Batteries Pad, Remote Control Accessories 92L412-0088 92L416-0037 Packing Add.
MD-X8 COPYRIGHT © 1997 BY SHARP COPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
