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JVC MX-GT91R Service Manual

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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
SP-MXGT91R
Contents
Safety precautions
Important for laser products
Preventing static electricity
Disassembly method
Adjustment method
MX-GT91R
STANDBY/ON
STANDBY
CD-R / RW PLAYBACK
MX-GT91R
CA-MXGT91R
1-2
1-4
1-5
1-6
1-26
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
PLAY & EXCHANGE
SP-MXGT91R
Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
MX-GT91R
Area Suffix
B
U.K.
E
Continental Europe
EN
Northern Europe
1-30
1-31
1-31
1-32
No.20931
Apr. 2001

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  • Page 1 MX-GT91R SERVICE MANUAL COMPACT COMPONENT SYSTEM MX-GT91R Area Suffix U.K. Continental Europe Northern Europe STANDBY/ON PLAY & EXCHANGE STANDBY CD-R / RW PLAYBACK MX-GT91R SP-MXGT91R CA-MXGT91R SP-MXGT91R Contents Safety precautions Flow of functional operation Important for laser products until TOC read...
  • Page 2 MX-GT91R 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.
  • Page 3 MX-GT91R (U.K only) 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits.
  • Page 4 MX-GT91R Important for laser products 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated. Avoid direct exposure to beam.
  • Page 5 MX-GT91R Preventing static electricity 1. Grounding to prevent damage by static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
  • Page 6 MX-GT91R Disassembly method Metal cover <Main body> Removing the metal cover (See Fig.1 to 3) Remove the six screws A on the back of the body. Remove the two screws B on both sides of the body. Remove the metal cover from the body by lifting the rear part of the cover.
  • Page 7 MX-GT91R Removing the CD changer mechanism Front panel assembly assembly (See Fig.4 and 5) Prior to performing the following procedure, remove the metal cover. Disconnect the card wire from connector CN661 on the Main board. Remove the two screws C on the upper side of the body and the two screws D on the back of the rear panel.
  • Page 8 MX-GT91R Remove the four screws E on the bottom of the Front panel assembly body. Release the two joints a on the lower right and left sides of the body using a screwdriver, and remove the front panel assembly toward the front.
  • Page 9 MX-GT91R Removing the tuner board Plastic rivet Tuner board (See Fig.11 and 12) Prior to performing the following procedure, remove Rear panel the metal cover and the CD changer mechanism assembly. Disconnect the card wire from connector CN1 on the tuner board on the right side of the body.
  • Page 10 MX-GT91R Removing the main board Main board (See Fig.16 and 17) CN870 Front panel assembly Prior to performing the following procedure, remove CN871 CN315 the metal cover, the CD changer mechanism assembly, the rear panel and the tuner board. Amplifier board...
  • Page 11 MX-GT91R Removing the power cord / power supply Tie band Voltage board board (See Fig.19) Prior to performing the following procedure, remove Power supply the metal cover, the CD changer mechanism board assembly and the rear panel. Power Disconnect the wire from connector CN250 on the cord power supply board.
  • Page 12 MX-GT91R Removing power transformer assembly (See Fig.22 and 23) Tie band Voltage board Power transformer Prior to performing the following procedure, remove assembly the metal cover, the CD changer mechanism assembly and the rear panel. Remove the tie band attaching the wire to the voltage board.
  • Page 13 MX-GT91R Head amplifier <Front panel assembly> & Mechanism control board CN306 Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the front panel assembly. Removing cassette mechanism assembly (See Fig.24) Disconnect the card wire from connector CN306 on the head amplifier &...
  • Page 14 MX-GT91R Removing the preset / tuning switch Preset / tuning switch board board (See Fig.29 and 30) Prior to performing the following procedure, remove the display system control board. Pull out the preset knob on the front panel. Remove the five screws Q attaching the preset / tuning switch board.

  • Page 15: Speaker Section

    MX-GT91R <Speaker section> Removing the front panel (See Fig.1) Remove the four screws A attaching the front panel on the front of the body. Pull out the front panel toward the front. Front panel Removing the speaker (tweeter) (See Fig.2) Prior to performing the following procedures, remove the front panel.
  • Page 16 MX-GT91R Removing the speaker (woofer) (See Fig.4 and 5) Punch panel Prior to performing the following procedures, remove the front panel. Remove the six screws D attaching the punch panel on the front of the body. Attention : When reassembling the punch panel, need to put glue all around.
  • Page 17 MX-GT91R Removing the CD Servo control board (See Fig.1) 1.Remove the metal cover. 2.Remove the CD changer mechanism assembly. 3.From bottom side the CD changer mechanism assembly, remove the four screws A retaining the CD servo control CN854 board. 4.Absorb the four soldered positions "a" of the right and left motors with a soldering absorber.
  • Page 18 MX-GT91R Stopper Check whether the lifter unit stopper has been caught into the hole at the section "e" of CD tray assembly as shown in Fig.5. Make sure that the driver unit elevator is positioned as shown in Fig.6 from to the second or fifth hole on the left side face of the CD changer mechanism assembly.
  • Page 19 MX-GT91R Cams R1, R2 assembly Removing the CD loading mechanism assembly(See Fig.10) While turning the cams R1 and R2 assembly in the arrow direction "h" ,align the shaft "i" of the CD loading mechanism assembly to the position shown in Fig.10.
  • Page 20 MX-GT91R Removing the try select switch board Chassis assembly (See Fig.14) Remove the two screws G retaining the tray select switch board. Tray select switch board Disconnect the tray select switch board from connector CN804 on the CD servo control board.
  • Page 21 MX-GT91R Removing the actuator motor and belt Gear bracket (See Fig.18~21) Remove the two screws I retaining the gear bracket (See Fig.18). While pressing the pawl "t" fixing the gear bracket in the arrow direction, remove the gear bracket Pulley gear (See Fig.18).
  • Page 22 MX-GT91R Slit washer Removing the cams R1/R2 assembly and cam gear q(See Fig.22) Cam R2 Slit washer Remove the slit washer fixing the cams R1 and R2 assembly. Cam gear q By removing the two pawls "w" fixing the cam R1, separate R2 from R1.
  • Page 23 MX-GT91R < Cassette mechanism section > Cassette mechanism Removing the playback,recording and eraser heads (See Fig.1~3) 1. While shifting the trigger arms seen on the right side of the head mount in the arrow direction,turn Flywheel R the flywheel R in counterclockwise direction until the head mount has gone out with a click (See Fig.
  • Page 24 MX-GT91R Removing the head amp. and mechanism control board (See Fig. 4) 1.Remove the cassette mechanism assembly. Head amplifier & 2.After turning over the cassette mechanism mechanism control board assembly,remove the five screws "A" retaining the head amplifier & mechanism control board.
  • Page 25 MX-GT91R Removing the capstan motor (See Fig. 8) Capstan motor From the joint bracket, remove the two screws "C" retaining the capstan motor. Joint bracket Removing the flywheel (See Fig. 9,10) 1.Remove the head amp. and mechanism control P.C.Board. 2.Remove the capstan motor assembly.
  • Page 26 MX-GT91R Adjustment method Measurement instruments required for adjustment Radio input signal 1. Low frequency oscillator, AM modulation frequency : 400Hz This oscillator should have a capacity to output 0dBs Modulation factor : 30% to 600ohm at an oscillation frequency of 50Hz-20kHz.
  • Page 27 MX-GT91R Arrangement of adjusting positions Cassette mechanism section (Mechanism A section) Cassette mechanism section (Back side) Head azimuth Head azimuth adjusting screw adjusting screw (Reverse side) (Forward side) Head azimuth Head azimuth Playback, recording and eraser adjusting screw adjusting screw...
  • Page 28 MX-GT91R Tape recorder section Adjusting Items Measurement Standard Measurement method positions conditions values Confirmation Adjust the head Test tape Maximum 1.Playback the test tape TMT7036(10kHz). of head angle azimuth screw :TMT7036(10kHz) output 2.With the playback mechanism or recording & only when the...
  • Page 29 MX-GT91R Electrical performance Adjusting Items Measurement Standard Measurement method positions conditions values Adjustment of AC-225 *Mode : Forward or 1.With the recording and playback mechanism, recording bias :4.20 A reverse mode load the test tapes(AC-225 to TYP ),and set the...
  • Page 30 MX-GT91R Flow of functional operation until TOC read Check Point Slider turns REST Play Key Power ON Confirm that the voltage at the pin5 SW ON. of CN801 is "H"\"L"\"H". Automatic tuning of TE offset Check that the voltage at the...
  • Page 31 MX-GT91R Replacement of laser pickup Maintenance of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to Turn off the power switch and, disconnect the clean the lens with a alcohol soaked cotton power cord from the ac outlet.
  • Page 32 MX-GT91R Description of major ICs AN7345(IC302) PB/REC AMP 1. Block diagram NF1 OUT1 CTL1 RIN1 RNF1 ROUT1 REPPLE Source CTRL CTRL OUT2 EQ2 CTL2 RIN2 RNF2 ROUT2 2. Pin Function Symbol Function Symbol Function Power supply Playback amplifier input Ripple filter...
  • Page 33 MX-GT91R BA15218F-XE (IC652) / BA15218N (IC481,501,502,526,546,571) : Dual op. amp. 1. Pin layout OUT1 1 8 Vcc -IN1 2 7 OUT2 +IN1 3 6 -IN2 VEE 4 5 +IN2 2. Block diagram OTHER Q114 OUTPUT 1-33...
  • Page 34 MX-GT91R BA3835S (IC812) : SPI B.P.F. 1.Block Diagrams BIASC BIAS AOUT VREFC VREF REFERENCE RREF TEST CURRENT N.C. N.C. PEAK 105Hz HOLD N.C. N.C. PEAK 340Hz HOLD PEAK 1kHz DIFOUT HOLD PEAK 3.4kHz HOLD PEAK 10.5kHz HOLD 2.Pin Function Symbol Function Decoupling condenser connection terminal.
  • Page 35 MX-GT91R BU2092/F(IC811):PORT EXPANDER 1.Terminal Layout DATA CLOCK CONTROL CIRCUIT 2.Pin Function Pin No. Symbol Function Connect to GND DATA Serial Data input CLOCK Shift Clock of Data Latch Clock of Data 5~16 Q0~Q11 Parallel Data Output Latch Data OUTPUT ON OFF...
  • Page 36 MX-GT91R LA1838(IC1): FM AM IF AMP&detector, FM MPX decoder 1. Block Diagram DECODER RF.AMP ANIT-BIRDIE MUTE BUFF STEREO P-DET AM IF PILOT 384KHz COMP S-METER AM/FM S-CLRVE S-METER IF-BUFF TUNING STEREO DRIVE DRIVE FM IF 2. Pin Function Symbol Function...
  • Page 37 MX-GT91R LA6541-X (IC801) : Servo driver 1. Pin Layout & block diagram Vref Vin4 Vin3 Level B T L B T L Level RESET shift driver driver shift Level B T L B T L Level Regulator shift driver driver...
  • Page 38 MX-GT91R BU2092/F(IC811):PORT EXPANDER 1.Terminal Layout DATA CLOCK CONTROL CIRCUIT 2.Pin Function Symbol Function Pin No. Connect to GND DATA Serial Data input CLOCK Shift Clock of Data Latch Clock of Data 5~16 Q0~Q11 Parallel Data Output Latch Data OUTPUT Output Enable...
  • Page 39 MX-GT91R LC72723 (IC3) : RDS demodulation 1. Pin Assignment RDS-ID/READY VREF MPXIN RDCL Vdda RDDA Vssa FLOUT MODE Vddd Vssd XOUT Top View 2.Block diagram VREF FLOUT CIN Vdda CLOCK Vddd RECOVERY REFERENCE (57kHz) (1187.5kHz) VOLTAGE Vssa VREF Vssd 57kHz...
  • Page 40 MX-GT91R MN101C35DEC2 (IC810) : System controller Pin function (1/2) Symbol Function Pin No. VC3 Serial data output KCMND VC3 status input MSTAT VC3 Serial clock KCLK SLC/TUNER data output DATAOUT TUNER data input DATAIN SLC/TUNER clock Not used Power supply +5V...
  • Page 41 MX-GT91R Pin function (2/2) Symbol Function Pin No. FL segment control signal output 64~85 P22~P1 Tuner chip enable TUCE System mute SMUTE Skip LED SEARCH LE LED Control signal output (CD1) CD1 LED LED Control signal output (CD2) CD2 LED...
  • Page 42 MX-GT91R MN662748RPM (IC651) : Digital servo & digital signal processor 1. Pin layout 20 ~ 41 ~ 2.Block diagram LRCKIN(MSEL) 8TIMES BCLK(SSEL) DIGITAL OVER SAMPLING OUTR SRDATAIN DE-EMPHSIS 1bit DIGITAL FILTER (PSEL) IOSEL LOGIC CLVS BLKCK OUTL CLDCK SBCK SUBC...
  • Page 43 MX-GT91R 3. Pin function Dymbol I/O Function Symbol I/O Function Tracking error shunt signal output (H:shunt) BCLK Not used PLLF2 Not used LRCK TOFS Not used SRDATA WVEL Not used Not used DVDD1 Power supply (Digital) RF signal input DVSS1...
  • Page 44 MX-GT91R TDA7439 (IC436) : Control volume 1.Pin layout DIG GND TREBLE(R) AGND TREBLE(L) ROUT MIN(L) LOUT MOUT(L) R-IN4 BOUT(L) R-IN3 BIN(L) R-IN2 BOUT(R) R-IN1 BIN(R) L-IN1 MOUT(R) L-IN2 MIN(R) L-IN3 L-IN4 MUXOUTR MUXOUTL TDA7439 2.Block diagram L-IN1 SPEAKER LOUT MIDLE...
  • Page 45 MX-GT91R LB1641 (IC851,IC852) : DC motor driver 1. Pin layout GND OUT1 P1 IN2 VCC1 VCC2 P2 OUT2 2. Pin function Input Output Mode OUT1 OUT2 Brake CLOCKWISE COUNTER-CLOCKWISE Brake BA3126N(IC301) : R/P Switch 1-45...

  • Page 46: Block Diagram

    MX-GT91R Block diagram FMH- FMH-031-2 FMB-028-5 FMA-006 FMC-022/024-1 031-1 MAIN MAIN HPF FM FRONTEND FM/DET TUNER RELAY SOURCE SELECTOR MAIN POWER AMP MUTE SYSTEM AM/DET & E.VOL IC602 IC481 IC 1 IC436 TAPE VOLDA,VOKCK HARMONICS MW RF/OSC INPUT AMP SUB WOOFER...
  • Page 47 MX-GT91R Standard schematic diagrams Power supply section 0.33( 1/2W) 0.33( 1/2W) 0.33( 1/2W) R1002 R1002 R1002 SHEET 4/8 C252 T001 CN220 T001 0.0047/250 F001 T001 QQT0320-002 QGD2504C1-03Z QQT0320-001 QQT0320-003 CN220 F001 CN220 QGD2504C1-03Z QGD2504C1-03Z T2AL CN214 QJK015-071214 CN214 QJK015-071214 5A-125V...
  • Page 48 MX-GT91R DC regulation & audio output section CN705 QGA2501C1-02 IC602 IC701 R786 KTC3200/GL/-T R675 C621 Q711 D726 1SS133 10/35V C605 C606 C705 C706 R778 220P R798 220P R740 220P 220P D703 D704 Q713 Q737 2SC2235/OY/-T D622 KRA111M-T R736 Q736 Q612 4.7K...
  • Page 49 MX-GT91R Main section SHEET 4/8 SHEET 4/8 R998 CN870 CN871 QGF1205C1-17 QGF1205C1-17 J426 R997 GP1FA550TZ R995 R426 C427 D426 D.OUT Q999 10/25 C426 KRA102M-T MTZJ5.1B-T2 0.022 RECL C994 C1228 C401 R401 100/6.3 220P RECR 470P 220P C402 C888 0.022 D434...
  • Page 50 MX-GT91R FL & systm control section FW915 QUM027-18Z4Z4 S999 FL801 R970 S996 QLF0074-001 GPIU271X CD1LED IC951 S995 CD2LED CD3LED C836 10/25 S997 L-115XSRD-D-T R961 D962 L806 C817 22/50 QQR0779-001Z S998 QQL29BJ-100Z L805 C815 R998 S964 L815 QQL29BJ-100Z 22/50 CN911 L802...
  • Page 51 MX-GT91R Front section IC901 NJM4580L FW915 QUM027-18Z4Z4 C1068 0.22/50 S915 D1061 R1063 R1068 1SS133-T2 S916 R1062 C1066 Q919 Q920 Q918 330P R1069 S917 Q1061 2SD2144S/VW/-T 102P C1021 J1021 QNS0184-001 MTZJ2.4B-T2 D1022 QUM027-13DGZ4 R1021 FW901 4.7k JS901 QSW0911-001 S901 J1022 QNS0184-001...
  • Page 52 MX-GT91R CD serbo section CN805 R887 CAM0 R886 CAM1 R871 R885 CAM2 R872 R884 CAM3 IC851 IC852 R873 LB1641 LB1641 R876 R883 CAM4 R882 CAM5 R875 R881 CAM6 R874 R880 CAM7 R281 R280 CN855 L853 QGB2012K2-10 L851 R855 R856 C859...
  • Page 53 MX-GT91R Head amplifier section SHEET 3/8 SHEET 4/8 TAPE P.B. signal Parts are safety assurance parts. When replacing those parts make SHEET 7/8 sure to use the specified one.
  • Page 54 MX-GT91R Tuner section QAU0160-001 0.0039 0.47/50 0.0022 0.047 22/16 0.27 470P 1/50 0.047 22/16 10/16 0.001 10/16 1SS133-T2 100/10 1000P 1SS133-T2 0.0018 0.0018 3.3K QAX0420-001 LC72136N 1SS133-T2 LA1838 2SC2412K/R/-X 2SC2412K/R/-X 1SS133-T2 QNB0014-001 DTA114YKA-X QAX0458-001Z 5.6K 150P DTA114YKA-X QQR0793-001 150P 150P 1/50 1.2K...
  • Page 55 MX-GT91R Printed circuit boards Main board CN211 CN212 TW12 C578 C576 R582 IC571 C1229 Q573 R577 C530 C528 D572 D502 R575 R518 R528 C577 R537 C575 D501 R511 R534 C535 C507 R505 C503 R503 R532 R506 R508 R530 C504 IC526...
  • Page 56 MX-GT91R Regulation & amplifier board Regulation board Preset/tuning switch board FW901 Q901 Amplifier board R908 T001C C739 C716 R727 2-11...
  • Page 57 MX-GT91R Front board Display & system control board Operation swicth board R1041 T001B Q1022 R233 C1043 T001B FW230 R234 CN880 R992 R1044 C838 R822 C1070 IC902 R968 IC811 L807 C1037 R912 C1034 D816 R911 D804 R896 R844 Q878 Q877 Q802...
  • Page 58 MX-GT91R CD servo control boad Head amplifer & mechanism control board Tuner board C859 C860 Q842 C853 R855 IC851 R842 B654 D851 C254 C854 R856 R872 IC852 R873 R876 R875 C855 R864 R865 R874 R866 C852 R863 R862 R861 R892...

  • Page 59: Table Of Contents

    MX-GT91R PARTS LIST [ MX-GT91R ] * All printed circuit boards and its assemblies are not available as service parts. CA-MXGT91R / SP-MXGT91R Area suffix B ------------------------------- U.K. E ----------- Continental Europe EN ------------ Northern Europe - Contents - Exploded view of general assembly and parts list...
  • Page 60 MX-GT91R Exploded view of general assembly and parts list Block No. Tuner board Display system control board Voltage Power supply board board Amplifier board CD servo Operation switch Main board Preset / tuning control board board switch board CD eject board...
  • Page 61 MX-GT91R Parts list (General assembly) Parts list (General assembly) Block No. M1MM Block No. M1MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area QYSPST2606Z SCREW GV10057-003A FRONT PANEL VKW5187-001 E75896-001 FELT SPACER...

  • Page 62: Parts List

    MX-GT91R Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area GV10055-001A/S/ METAL COVER QYSDSG3006M T.SCREW M.COVER/C.BASE QYSBSGY3008E SPECIAL SCREW M.COVER/R.PANEL GV20106-004A CD FITTING(1) DISC 1 GV20107-004A CD FITTING(2) DISC 2 GV20108-004A CD FITTING(3) DISC 3...

  • Page 63: Cd Changer Mechanism Assembly And Parts List

    MX-GT91R CD changer mechanism assembly and parts list Block No. C3BASE-1M Grease = EM-30L = EBS0006-009B = FL-7750 FIG B FIG C FIG C FIG B Opposite side the same. FIG A FIG A CAUTION The axes of each gear...
  • Page 64 MX-GT91R Parts list (CD changer mechanism) Block No. M2MM Item Parts number Parts name Q'ty Description Area VKS1144-004 CHASSIS VKS3698-003 TRAY GUIDE VKS5532-003 PULLEY GEAR VKB3000-164 BELT VKS5505-003 GEAR B VKS5506-002 GEAR C VKS5507-002 CROSS GEAR U VKS5508-002 CROSS GEAR L...

  • Page 65: Cd Mechanism Assembly And Parts List

    MX-GT91R CD mechanism assembly and parts list Block No. Grease & Bond = EBS0006-013B = 1401B Turn table hight EXL-M7TMB Parts list (CD mechanism) Block No. M3MM Item Parts number Parts name Q'ty Description Area E102731-221SM CD MECHA BASE A...

  • Page 66: Cassette Mechanism Assembly And Parts List

    MX-GT91R Cassette mechanism assembly and parts list Block No. SLC-W101M Cassette switch board Head amplifier & mechanism control board...
  • Page 67 MX-GT91R Parts list (Cassette mechanism) Block No. M4MM Item Parts number Parts name Q'ty Description Area VKS1165-00K MECHA CHASSIS VKR4749-003 IDLER PULLEY LV42026-001A SHAFT A MECHA VKH5786-003 SHAFT B MECHA VKS2274-002 REEL GEAR VKW5286-002 B.T. SPRING VKS5559-001 PLAY IDLE GEAR...
  • Page 68 MX-GT91R Grease point =JC-525 Grease =UD-24 =LEN-320M =MOBIL-1 B mecha A mecha 3-11...
  • Page 69 MX-GT91R Front view Rear view B - B (2/1) C - C (2/1) D - D (2/1) E - E (5/1) A - A (2/1, 2 places) (Dipping) 3-12...
  • Page 70 MX-GT91R Electrical parts list (Regulator & amplifier board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 201 QFV72AJ-104Z MF CAPACITOR .10MF 5% 100V C 726 EETC1EM-106ZJC E CAPACITOR C 202...
  • Page 71 MX-GT91R Electrical parts list (Regulator & amplifier board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area L 702 QQLZ005-R45 INDUCTOR R 615 QRJ146J-100X UNF.C RESISTOR 10 5% 1/4W Q 201 2SA934/QR/-T...
  • Page 72 MX-GT91R Electrical parts list (Regulator & amplifier board) Block No. 01 Item Parts number Parts name Remarks Area R 769 QRE141J-222Y C RESISTOR 2.2K 5% 1/4W R 774 QRJ146J-100X UNF.C RESISTOR 10 5% 1/4W R 775 QRE141J-102Y C RESISTOR 1.0K 5% 1/4W...
  • Page 73 MX-GT91R Electrical parts list (Main board) Block No. 02 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 250 QETC1EM-226Z CAPACITOR 22MF 20% 25V C 531 QFVJ1HJ-334Z MF CAPACITOR .33MF 5% 50V C 251...
  • Page 74 MX-GT91R Electrical parts list (Main board) Block No. 02 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area FT511 QNG0020-001Z FUSE CLIP R 491 QRE141J-472Y C RESISTOR 4.7K 5% 1/4W FT512 QNG0020-001Z FUSE CLIP R 492...
  • Page 75 MX-GT91R Electrical parts list (Front board) Block No. 03 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 233 QFVJ1HJ-104Z MF CAPACITOR .10MF 5% 50V D 360 MTZJ5.1B-T2 ZENER DIODE C 308 EETC1HM-106ZJC E CAPACITOR...
  • Page 76 MX-GT91R Electrical parts list (Front board) Block No. 03 Item Parts number Parts name Remarks Area Item Remarks Parts number Parts name Area Q 362 KTC3199/GL/-T TRANSISTOR R 822 QRE141J-103Y C RESISTOR 10K 5% 1/4W Q 802 KRC102M TRANSISTOR R 823...
  • Page 77 MX-GT91R Electrical parts list (Front board) Block No. 03 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 895 QRE141J-102Y C RESISTOR 1.0K 5% 1/4W S 932 QSW0674-001Z TACT SWITCH R 897 QRE141J-334Y C RESISTOR...
  • Page 78 MX-GT91R Electrical parts list (Tuner board) Block No. 04 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area NCB21HK-223X C CAPACITOR CN 1 QGF1205F1-13 CONNECTOR NCB21HK-103X C CAPACITOR 1SS133-T2 SI DIODE EETC1CM-106ZJC E.CAPACITOR 1SS133-T2 SI DIODE...
  • Page 79 MX-GT91R Electrical parts list (CD servo control board) Block No. 05 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 251 NCS21HJ-100X C CAPACITOR C 821 NCF21CZ-105X C CAPACITOR C 252 NCS21HJ-100X C CAPACITOR...
  • Page 80 MX-GT91R Electrical parts list (CD servo control board) Block No. 05 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area R 619 NRSA02J-153X MG RESISTOR R 811 NRSA02J-103X MG RESISTOR R 620 NRSA02J-564X MG RESISTOR...

  • Page 81: Electrical Parts List

    MX-GT91R Electrical parts list (Head amplifier & mechanism control board)) Block No. 07 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area CN301 QGF1205F1-06 CONNECTOR A HEAD D3302 1SR139-400-T2 SI DIODE CN302 QGF1205F1-06 CONNECTOR B HEAD D3307 DZ5.1BSB-T2...
  • Page 82 MX-GT91R Electrical parts list (Head amplifier & mechanism control board)) Block No. 07 Item Parts number Parts name Remarks Area R3327 QRE141J-474Y C RESISTOR 470K 5% 1/4W R3330 QRE141J-103Y C RESISTOR 10K 5% 1/4W R3331 QRE141J-103Y C RESISTOR 10K 5% 1/4W...

  • Page 83: Packing Materials And Accessories Parts List

    MX-GT91R Packing materials and accessories parts list Block No. Block No. A1~A7 SP-MXGT91R CA-MXGT91R 3-26...
  • Page 84 MX-GT91R Parts list (Packing) Block No. M5MM Item Parts number Parts name Q'ty Description Area GV20117-003A PACKING CASE CA-MXGT91R GV10071-002A CUSHION UPPER CA-MXGT91R GV10072-002A CUSHION BOTTOM CA-MXGT91R QPC06507015P POLY BAG CA-MXGT91R GV30209-001A SPACER CA-MXGT91R GV40168-003A SHEET CA-MXGT91R QPC02503515P POLY BAG...

  • Page 85: Mx-Gt91R

    MX-GT91R VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.20931) 200104(V)

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