NAD C 546BEE Service Manual
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NAD C 546BEE Service Manual

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NAD
C 546BEE
COMPAC T
DISC PLAYER

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Summary of Contents for NAD C 546BEE

  • Page 1 C 546BEE COMPAC T DISC PLAYER...

  • Page 2: Safety Information

    SAFETY INFORMATION CAUTION CLASS 1 LASER PRODUCT The lightning flash with arrowhead, within an equilateral tri- The exclamation point within an equilateral triangle is intend- angle is intended to alert the user of the presence of ed to alert the user of the presence of important operating uninsulated "dangerous voltage"...

  • Page 3: Table Of Contents

    SERVICE SAFETY PRECAUTIONS Replacing the fuses CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE. Reference No Part Number Description 5120-0050+0 FUSE T1.6A/250V 5X20 FC201 5120-0018+0 FUSE T1A 250V 5X20 FC202, FC204, FC205 5120-0035+0 FU T100MA 250V FC203...

  • Page 4: Specifications

    13.9 lbs * - Gross dimensions include feet, extended buttons and rear panel terminals. Specifications are subject to change without notice. For updated documentation and features, please log onto www. NADelectronics.com for the latest information about C 546BEE. - 4 -...

  • Page 5: Rear Panel / Front Panel

    REAR PANEL / FRONT PANEL REAR PANEL LINE OUT IR IN DIGITAL OUT (COAXIAL, OPTICAL) AC MAINS INPUT +12V TRIGGER IN FRONT PANEL STANDBY BUTTON DISPLAY STANDBY LED SCAN DISC TRAY USB INPUT STOP/OPEN 10. PLAY/PAUSE/SKIP SOURCE 11. VFD RANDOM 12.

  • Page 6: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. Remove machine screws M 4.0 x 6.0 ( 1 to 4 ) from the side panels. Remove tapping screw 3.0 x 8.5 ( 5 )from the back panel. Refer to Figure No.1. Figure No.1 2. Pull both sides of the TOP COVER slightly outwards 6 and tilt approx. 35˚ and then remove in the direction as indicated by the arrow 7 .

  • Page 7: Block Diagram

    BLOCK DIAGRAM - 7 -...

  • Page 8: Wiring Diagram

    WIRING DIAGRAM AC IN JMP135 C226 U203 J222 J219 RCA_CH Q204 Q205 AC201 J214 D201 J216 L201 JMP136 RCA202 D202 C201 TRANSFORMER RCA201 JMP37 C214 JMP70 RL201 C259 Q203 Q201 C210 Q202 C110 JMP113 JMP91 L103 F101 T800mAL 250V JMP94 C216 D213 D214 JMP18...

  • Page 9: Rf Pattern Testing

    J220 1725-970B+000B Test Point NAD - C 546BEE PCB TESTING POINTS DIAGRAM TESTING PROCEDURE (1) Load the test disc (Sony Test CD YEDS-7) and set the unit into PLAY mode. (2) Connect the scope to C3 (Pin 4 of IC701) and DGND (J215).

  • Page 10: Important Notes

    IMPORTANT NOTES INSTRUCTION FOR HANDLING OPTICAL SYSTEM BLOCK PICK-UP Electrostatic breakdown of the laser diode in the optical system block may occur due to a potential difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground must be provided as follows to prevent any electrostatic charge during unpacking or repair work.
  • Page 11 PRECAUTIONS WHEN CHANGING LASER PICK-UP When removing the pick-up assembly, short circuit the PCB tracks on the optical block as show in the drawing in order to protect the pick-up before removal. NOTE: Replacement pick-up assemblies are supplied with the PCB pattern already protected. DO NOT REMOVE THE SHORT CIRCUITS UNTIL YOU HAVE FINISHED FITTING THE PICK-UP.
  • Page 12 MULTI-KEY TABLE FOR C546BEE Item Content Multi-key MCU Ver Display + << Servo Ver Display + >> Factory Test Display + K_PANEL_PLAY RANDOM + << TRAY COUNT PLAY TIME RANDOM + >> AUTOSTANDBY ENABLE/DISABLE RANDOM + K_PANEL_PLAY CLEAR ALL Source + <<. Then input password “546546” - 12 -...

  • Page 13: Mcu Upgrade Procedure

    MCU UPGRADE PROCEDURE - TMP86FS49(MCU) 1. Upgrade via USB interface on C546BEE unit Upgrading via USB interface is available for units with MCU ver 0.4.4 or later version. And every unit with any version can be upgrade via UART interface, maybe with different passwords. Put the software file for upgrade into the root folder of a USB device and rename it as ‘host.h16’, and upgrade as following procedure: 1).
  • Page 14 2. Upgrade via UART interface 2.1 Hardware connection 1). Connect the programmer board to the unit through the FFC connector at the rear panel, shown as below picture: 2.2 Software setup Password setting is different for different version and other setting is the same as describe below: 2.2.1 Upgrade from Ver0.4.3 to Ver 0.4.4 or later versions 2.2.1.1 Open Flash Programmer, click Setup, select Device, shown as below: - 14 -...
  • Page 15 2.2.1.2 Browse to the file for upgrade. - 15 -...
  • Page 16 2.2.1.3 Setup communication Port and data rate. 2.2.1.4 Setup password, Shown as below: - 16 -...
  • Page 17 2.2.2 Upgrade from Ver0.4.4 or later versions to another later version 2.2.2.1 Setup Password, Shown as below: Click Auto(Search from Password Log File), then click Search from file, shown as below: Then a pop up window would require you choose the file for upgrade, browse to the file and select it. - 17 -...
  • Page 18 Click OK and it will show as below. 2.3 Upgrade procedure 1). Open Flash Programmer and plug in C546BEE, the buttons will be illuminated. If the buttons are still grey, try to unplug and plug in the unit again. - 18 -...
  • Page 19 2). Click A button, it will start auto programming. 3). When the programming finishes, it will pop up the below window, Click No to finish the upgrading. 4). User can press the panel keys to check the MCU version as below for different software version: Source + <<...

  • Page 20: Servo Upgrade Procedure

    SERVO UPGRADE PROCEDURE 1. Upgrade servo software via USB interface Put the software file for upgrade into the root folder of a USB device and rename it as ‘bp2.s24’, plug the USB device into the unit, and upgrade as following procedure: 1).

  • Page 21: Pcb Layout

    PCB LAYOUT KEY BOARD PCB-C54626+KEY 1726-072A+000B Issue B JMP105 R105 REMO101 JMP101 JMP89 JMP23 JMP103 CON101 JMP39 C102 C104 STOP/OPEN SCAN RIGHT SOURCE SCAN LEFT RANDOM DISPLAY S109 S107 S105 S108 S103 S104 CN102B top side bottom side SWITCH BOARD SKIP BOARD USB BOARD PCB-C54626+USB...
  • Page 22 MAIN BOARD - top side J209 J218 230V J217 120V L202 J210 C211 C114 U101 D105 JMP156 D107 C113 D203 T100 JMP157 R117 D108 C109 JMP31 JMP35 J201 JMP36 JMP126 JMP102 JMP98 JMP125 JMP120 JMP74 P204 JMP66 J215 JMP67 U202 JMP119 JMP147 JMP1...
  • Page 23 MAIN BOARD - bottom side R248 R252 R254 C227 C234 R217 C256 R263 C204 R212 R279 R280 R282 R204 R281 R286 R291 R138 R292 IC207 R272 R324 C296 R326 R322 R327 R323 R265 C299 R266 R325 R274 R267 KEY1 KEY2 V_R2 LCD-DATA R296...

  • Page 24: Servo Board

    SERVO BOARD VREF C758 SVCC C782 L709 IC707 C759 L703 R738 R737 C779 R830 R750 R751 R753 R752 C738 R703 C739 R735 R736 R701 C741 C731 C756 C757 Q701 C733 C730 C732 C772 C773 C737 R782 C775 R781 C703 R780 C726 C727 R779 R823...

  • Page 25: Schematic Diagram

    SCHEMATIC DIAGRAM VFD101 Q102 R106 C107 KSR1105 3.3K 47pF R157 B4B-PH-K-S JP110 D103 Z101 DAN202K R103 R104 R115 5.6V 470R 470R R156 C106 47pF PLAY POWER DGND_K PLAY R105 R107 R108 R109 R110 CON101 390R 470R 820R F1_4.1V 470R DGND_K F1-4V1 F2_4.1V F2-4V1...
  • Page 26 OP_8V Q215 L203 7805 2SB908 R139 CD8V OP_8V DGND U202 D238 D239 TA7291S IN4148 IN4148 TRIGGER R288 R140 4.7K IN4148 IN4148 DGND DETECT CPU_3.3V C203 R289 10uF/25V R267 R272 R265 R266 R290 2.2K 4.7K 4.7K 4.7K 2N3904 J215 15P-1.25 MCLK MCLK MCLK RDS_CLK...
  • Page 27 U209 R314 LRCLK WM8740_CS LRCLK CSB/SADDR/I2S R315 DATA WM8740_CLK DIN/DINL SCLK/DSD R316 BCLK WM8740_DATA BCLK SDIN/DEEMPH R317 R321 MCLK FSWL/DINR MUTEB/SDOUT DVDD_3V3 MCLK MODE/LRSEL 100K R320 CSBIWO CUP_REST DIFFHW IWO/DOUT 100K R319 L204 600R/100MHz DGND OSR/DSDR DVDD_3V3 0805 R318 DVDD_3V3 DVDD_3V3 DVDD ZFLAG...
  • Page 28 CPU_5V R255 R256 R257 Q202 2sc1923 Q204 2sc1923 R252 R253 Q203 2sc1923 R259 R258 R244 R246 200R REMOTE 330R U203-A J214 LM393 C280 C224 L201 R248 IR_IN_JACK 680P 27uH 1.8K D207 1N4148 C225 R249 1.5K R254 R247 100K C281 R245 D203 4.7V 1.5K...
  • Page 29 POWER CPU_5V U205 7809 R264 4.7k J201 To servo C242 C244 C243 C245 4700uF/35V 1000uF/25V 104K 104K D205 1N4148 RB152 DETECT DGND 2.2k 2N3904 From Main transfromer D212 1N4148 J210 VH11P_3.96 JST FC201 Q207 T1.6AL250V S8050 U206 7806 DGND F101 T0.8A 250V FC202 C246...
  • Page 30 SERVO 0.1u DG ND DG ND 470pF JP108 USB_PO W ER B4B-PH-K-S If use this,no need 1.5V from M ainBoard. 100K J220 1.5V To CD mecha n i s m G ND USB5V G ND 470pF M 1.5V DA3.3V BK1608HS601-T CN08 O UTA TA48015F(NC)

  • Page 31: Ic Block Diagram

    IC BLOCK DIAGRAM MAIN BOARD U1: DS1233DZ-5+T&R RESET MAIN BOARD MAIN BOARD U2, U207, IC202: NJM7805FA-#ZZZB U3: QUAD 2INPUT EXCLUSIVE U205: NJM7809FA U206: 6V 3-TERMINAL REGULAT OR NJM7806 IC203: NJM7812FA-#ZZZB SERVO BOARD IC1: NJM7805FA-#ZZZB MAIN BOARD MAIN BOARD MAIN BOARD U201: SN74HCU04D (SOP) U204: NJM7912FA-#ZZZB U210, U211: OPA2134PA DIP OP AMP...
  • Page 32 MAIN BOARD PDIP-7 U101: POWER NCP1015AP100G 8 GND 7 GND 5 DRAIN (Top View) Startup Source Drain sense High when V UVLO 250 ns Management L.E.B. Reset 65 kHz EMI Jittering Flip-Flop 100 kHz Driver = 65% Clock Reset 18 k Error flag armed? 0.5 V Overload?
  • Page 33 MAIN BOARD U202: TA7291SG(5M)22240239 MAIN BOARD IC207: MEMORY 24C1024 SOIC8 START STOP LOGIC SERIAL H.V. PUMP/TIMING CONTROL LOGIC LOAD COMP DATA RECOVERY DEVICE ADDRESS LOAD COMPARATOR DATA WORD EEPROM ADDR/COUNTER Y DEC SERIAL MUX /ACK LOGIC - 33 -...
  • Page 34 MAIN BOARD IC206: MCU TMP86FS49AUG (INT3/TC2) P15 P74(AIN12) /TC5) P16 PDO5/PWM5 P73(AIN11) /TC6) P17 PDO6/PWM6/PPG6 P72(AIN10) (SCL) P50 P71(AIN9) (SDA) P51 P70(AIN8) P67(AIN7/STOP3) P66(AIN6/STOP2) P65(AIN5/STOP1) P64(AIN4/STOP0) P63(AIN3) P62(AIN2) P61(AIN1) P60(AIN0) AVDD VAREF P07(INT2) - 34 -...
  • Page 35 MAIN BOARD IC209: REGULATOR TA48015F Overcurrent- Constant limiting circuit current circuit Reference voltage circuit Overheating detection circuit MAIN BOARD IC204, IC208: LM1117S-3.3 Current Limit ADJ/GND 1.25V Thermal Limit – ADJ/GND ~ 50µA SERVO BOARD IC6: REGULATOR TA48033BF Over current Constant protection current circuit Reference...
  • Page 36 SERVO BOARD IC703: DSP T5CJ3-7D13 P-LQFP /RESET USB_START DVSS D-REQ SBSY MODE0 INNER BSIF_LRCK DVCC3 TEST TEST RC RESET TEST RC TEST DVSS BUCK T5CJ3-7D13 DVCC1B RVOUT1 LQFP100 RVIN DVCC3 RVIN DVSS TOPVIEW RVOUT2 MODE4 DVCC1A BUS3 DVSS BUS2 BUS1 BUS0 RVIN System control circuit...
  • Page 37 SERVO BOARD IC707: MULTI-PURPOSE FLASH 800A 400A SST39LF/VF200A SST39LF/VF200A 400A 800A V SS V SS V SS DQ15 DQ15 DQ15 DQ14 DQ14 DQ14 DQ13 DQ13 DQ13 Standard Pinout DQ12 DQ12 DQ12 Top View V DD V DD V DD Die Up DQ11 DQ11 DQ11...

  • Page 38: Troubleshooting Guide

    TROUBLESHOOTING GUIDE PLUG IN Is Power LED light? Check fuse F101 CHECK SMPS CIRCUIT NORMAL? SMPS PATTERNS OPEN FUSE DEFECT IS OSCILLATOR CIRCUIT OSCILLATING? CRYSTAL X201 DEFECTIVE IS POWER TURNED CHECK FUSE CHECK POWER CIRCUIT POWER SUPPLY FC201,FC202,FC203, NORMAL? PATTERNS OPEN FC204,FC205 LOADER SWITCH DEFECTIVE Is there open/close key signal...

  • Page 39: Electrical Parts List

    ELECTRICAL PARTS LIST Location Part Number Description PCB ASSY MAIN PCB-C54616+MAIN PCB ASSY MAIN US C546 PCB-C54626+MAIN PCB ASSY MAIN EU PC BAORD 1726-072A+000C PCB MAIN COB HAL PTH SS CAPACITOR 157D-107M+K-LUNY CE 16V 100U 20% RLT 6.3X C109 150F-103K+2-DC CC 50V 0.01U 10% AT 153I-224J+V-NL CM 63V 0.22U 5% RBT...
  • Page 40 Location Part Number Description C223 157C-477M+K-OVE CE 10V 470U 20% RLT C224 150F-681J+P-AC CC 50V 680P 5% 0603 C225 150F-103J+P-AC CC 50V 0.01U 5% 0603 C226 157C-228M+5-S9 CE 10V 2200uF 20% RL C227 150F-104K+P-AC CC 50V 0.1uF 10% C228 150F-102J+P-AC CC 50V 1000P 5% 0603 X7R C229 150F-104K+P-AC...
  • Page 41 Location Part Number Description C296 150F-561K+P-AC CC 50V 560P 10% C297, C298 150F-181K+P-AC CC 50V 180P 10% 0603 C299 150F-561K+P-AC CC 50V 560P 10% C301, C302 150F-104K+P-AC CC 50V 0.1uF 10% C303 150F-101J+P-AC CC 50V 100P 5% 0603/1608 C304 150F-561K+P-AC CC 50V 560P 10% C305, C306 150F-181K+P-AC...
  • Page 42 Location Part Number Description D238, D239 4804-1480+2 DIODE 1N4148T AT 4804-0070+2 DIODE IN4007-F AT 4840-9050+3 DIODE SCHOTTKY SM330A 480R-1600+C DIODE SCHOTTKY 60V 1.0A 4804-0010+2 DIODE W1N4001-A(WA) AT 4804-1480+C DIODE 1N4148M-A(WA) ATS 4804-1480+2 DIODE 1N4148T AT 4802-02K0+3 DIODE SW 80V 300MA WAFER/SOCKET CN103 2102-040S+003...
  • Page 43 Location Part Number Description KTC3198 - GR Q216 4852-458G+K 4860-0060+K TR SS8550 C/DTA RLT RESISTOR 4723-472A+P RMG 1/16W 4.7K 1%. R117 4711-123A+2 RMF 1/8W 12K 1% AT R139 4723-103A+P-R RMG 1/16W 10K 1% 0603 R140 4711-102A+2 RMF 1/8W 1K 1% AT R15, R16, R17 4720-100A+J RMG 1/10W 10R 1% 0805...
  • Page 44 Location Part Number Description R273 4723-103A+P-R RMG 1/16W 10K 1% 0603 R274, R275, R276 4723-104A+P-R RMG 1/16W 100K 1% 0603 R277 4723-471A+P-R RMG 1/16W 470R 1% 0603 R278 4723-104A+P-R RMG 1/16W 100K 1% 0603 R279 4723-101A+P RMG 1/16W 100R 1% 0603 4723-202A+P RMG 1/16W 2K 1% R280...
  • Page 45 Location Part Number Description R341 4723-622A+P RMG 1/16W 6.2K 1% R342 4723-470A+P RMG 1/16W 47R 1% 0603 R343 4723-103A+P-R RMG 1/16W 10K 1% 0603 R344, R345 4723-473A+P-R RMG 1/16W 47K 1% 0603 R346, R347 4723-470A+P RMG 1/16W 47R 1% 0603 R348, R349 4723-101A+P RMG 1/16W 100R 1% 0603...
  • Page 46 Location Part Number Description SCREW Screw001 2954-3008+0000 SCREW B-TITE BIND M3X8 Screw002 2954-2606+0000 SCREWS BT 2.6X6 MISCELLANEOUS AC201 7013-2341+0 WIRE-CONN 2P P7.92 #18 CON201 2101-3235+0 CONNECTOR FFC 18P P1.25 1808-0830+0 EMI CORE GSRC-110-B F101 5120-1169+0-C FUSE 0.8A 250V 8.35X4.3 FC201, FC202, FC203, FC204, FC205 4131-9131+0 FUSE HOLDER 6.5MM PITCH 2601-2604+0471...
  • Page 47 Location Part Number Description JP110 2102-040S+003 WAFER 4P P2.0 STRAIGHT TRANSISTOR Q102 485C-1140+3 TR DTC114YKA 2216470R2 Q3, Q4 4860-0640+3 TR 3904 HFE 100-300 SM RESISTOR 4720-330A+J RMG 1/10W 33R 1% 0805 R103 4720-471A+J RMG 1/10W 470R 1% 0805 R104, R105 4711-471A+2 RMF 1/8W 470R 1% AT R106...
  • Page 48 Location Part Number Description CAPACITOR C148, C149 150F-103J+P-AC CC 50V 0.01U 5% 0603 MISCELLANEOUS JP109 7013-0490+1 WIRE-CONN 4P P2.0 #28 UL 5200-4978+0 ENCODER PUSH ROTARY SPST PCB ASSY SW1 PCB-C54626+SW1 PCB ASSY SW1 EU C546 PC BOARD 1726-072A+000C PCB MAIN COB HAL PTH SS TRANSISTOR Q101 4860-0640+3...
  • Page 49 Location Part Number Description PCB ASSY SERVO PCB-C54626+SERVO PCB ASSY SERVO EU C546 PC BOARD 1725-970B+000B PCB SERVO HAL PTH DS CAPACITOR 150F-151J+P-AC CC 50V 150P 5% 0603 150F-560J+P-AC CC 50V 56P 5% 0603 157D-107M+K-IUE CE 16V 100U 20% RLT 5X11 157C-477M+K-OVTU CE 10V 470U 20% RLT 150F-104K+P-AC CC 50V 0.1uF 10%...
  • Page 50 Location Part Number Description C732 157C-107M+H-IUE CE 10V 100U 20% RLR 5X11 C733 150F-104K+P-AC CC 50V 0.1uF 10% C734, C735 150F-681J+P-AC CC 50V 680P 5% 0603 C737 150F-562J+J-BD CC 50V 5600pF 5% 0805 1. C738 150F-104K+P-AC CC 50V 0.1uF 10% C739 157D-476M+K-IU CE 16V 47U 20% RLT 5X11...
  • Page 51 Location Part Number Description JACK/SOCKET CN08 2113-1837+0 NPLG-6P-134 25055150 CRYSTAL X701 2300-3317+0 CRYSTAL 9.0MHZ +/-30PPM X702 2300-0110+0 CRYSTAL 16.9344 MHZ TRANSISTOR KTC3195 4852-668Y+U TR NPN KTC3198 4860-0700+K KTC3195 Q220 4852-668Y+U TR NPN Q701 4851-362Y+3 TR PNP 2SA1362Y HFE 4851-4570+5 TR PNP 2SB1457 TO-92 RL RESISTOR JR701 4723-000J+P-R...
  • Page 52 Location Part Number Description R701 4723-4R7J+P RMG 1/16W 4.7R 5% R702 4723-104A+P-R RMG 1/16W 100K 1% 0603 R703 4723-000J+P-R RMG 1/16W 0R 5% 0603 R704 4723-221A+P RMG 1/16W 220R 1% R705 4723-473A+P-R RMG 1/16W 47K 1% 0603 R706 4723-153A+P RMG 1/16W 15K 1% R707 4723-334J+P RMG 1/16W 330K 5%...
  • Page 53 Location Part Number Description IC703 3132-8601+0-20 IC DSP T5CJ3-7D13 P-LQFP IC707 3132-8591+0-31 IC MULTI-PURPOSE FLASH 3132-6860+0-39 IC DUAL CH POWER DIST SW MISCELLANEOUS CN1B 7012-7033+1 WIRE-CONN 10P P2.0 #26 CN701 2101-3102+0 CONNECTOR FFC 16PIN P1.0 IC707 312A-1260+01 SOFTWARE SERVO MCU V10 3 IC707-LB 3000-9812+0 BLANK LABEL (5X10)

  • Page 54: Traverse Exploded View

    TRAVERSE EXPLODED VIEW DA11VZ - 54 -...

  • Page 55: Traverse Exploded View Parts List

    TRAVERSE EXPLODED VIEW PARTS LIST NSP Item Part No. Description ASSY, PICKUP, LASER, P101NRVZ (P101VZ) ASSY, MOTOR, SPINDLE ASSY, MOTOR, SLED CHASSIS COVER, GEAR SAHT, SLIDE GEAR, MIDDLE GEAR, DRIVE SWITCH, LEAF CONNECTOR-6P MOTOR SPECIAL SCREW M2.0uP.0 SPECIAL SCREW M2.6u6.0 - 55 -...

  • Page 56: Exploded View

    EXPLODED VIEW - 56 -...

  • Page 57: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Item Description Q’ty * Grey 2448-0002+0 Knob KNOB FRONT D25XH23.5 ABS * Titanium 2448-0001+0 * Grey 1468-3904+3 0101 PANEL-FRONT ABS * Titanium 1468-3903+3 * Grey 2447-7201+0 0102 BUTTOM TRIO INPUT FRONT * Titanium 2447-7202+0 * Grey 2447-7201+0 0103 BUTTOM TRIO INPUT FRONT...
  • Page 58 Item Description Q’ty 0225 2954-3008+3000 SCREW B-TITE BIND HEAD 0226 4135-3291+0 CLIP 27255004-1 CP701 * Grey 1402-3535+0 0301 TOP COVER SILVER (C542) * Titanium 1402-3536+0 * Grey 2900-4006+3010 0302 M4X0.5PX6MM * Titanium 2900-4006+2010 * Grey 2954-3008+3000 0303 SCREW B-TITE BIND HEAD * Titanium 2954-3010+4000 0304...

  • Page 59: Packing Diagram

    3001-3037+0 LABEL-BARCODE 9500-0190+0 LOCK STAPLES 18MM 9500-0070+0 TAPE PP (PVC) 2INCH Proprietary information for servicing purposes only. The information herein may not be used com- mercially without the prior written agreement of NAD Electronics International, Toronto, Canada. - 59 -...

  • Page 60: History Change

    HISTORY CHANGE Old Part New Part Affected Part Affected Serial NO. 2SD655F KTC2874 Q10, Q210, Q211, Start from G21C546BEET03506, Q212 and Q213 except 3706~3874, 3878, 3879, 3881, 3894, 3895, 3917, 3922, 3925, 3929, 3935, 3940, 3953, 3975, 3982, 3987, 4015, 4018, 4020, 4030, 4072, 4175, 4179, 4198, 4247, 4333, 4341, 4401, 4428, 4519, 4535, 4539 and 4595...

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