NAD L54 Service Manual
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NAD L54 Service Manual

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© NAD 2007
NAD ELECTRONICS INTERNATIONAL
TORONTO

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Summary of Contents for NAD L54

  • Page 1 © NAD 2007 NAD ELECTRONICS INTERNATIONAL TORONTO...
  • Page 2 DVD RECEIVER...

  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES..................1-4 SERVICING PRECAUTIONS ........................1-5 * General Servicing Precautions * Insulation checking prodedure * Electrostatically Sensitive Devices SPECIFICATIONS ............................1-6 DISASSEMBLY .............................. 1-7 PRINCIPAL PART LOCATION ........................1-8 EXPLODED VIEW (AH) ..........................1-9 EXPLODED VIEW (C)............................

  • Page 4: Product Safety Servicing Guidelines

    PRODUCT SAFETY SERVICING GUIDELINES CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S. ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE WITHOUT MANUFACTURER’S APPROVAL. UNAUTHORIZED EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY.

  • Page 5: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION : Before servicing the A/V Receiver covered by this Electrostatically Sensitive (ES) Devices service data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged easily by SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances static electricity.

  • Page 6: Specifications

    SPECIFICATIONS...

  • Page 9: Exploded View (Ah)

    EXPLODED VIEW (L54AH) 1-10...
  • Page 10 1-11...

  • Page 11: Exploded View (C)

    EXPLODED VIEW (L54C) 1-12 1-13...
  • Page 12 1-14...
  • Page 13 TRANSISTOR, REGULATOR IC PIN DESCRIPTION 1. BLOCK DIAGRAM ..........................2-34 2. WIRING DIAGRAM ..........................2-36 3. SCHEMATIC DIAGRAM ........................2-47 4. PRINTED CIRCUIT BOARDS ......................2-53...
  • Page 14 SOFT RESET METHOD...

  • Page 15: Block Diagram

    IC BLOCK DIAGRAMS & PIN DESCRIPTION...
  • Page 17 OPA2134 Out A –In A Out B +In A –In B V– +In B 8-Pin DIP, SO-8 Schematic : Top View 1. Anode 2. Cathode 3. Emitter 4. Collector...
  • Page 18 PIN ASSIGNMENT LOGIC SYMBOL (10) (11) (13) (12) TRUTH TABLE...
  • Page 20 Pin Assignment...
  • Page 21 Block Diagram Pin Functions Pin No. Function Handling when unused 1, 13 Driver block power supply connection. (Both pins must be connected.) — — Logic block power supply connection. Provide a voltage between 4.5 and 5.5 V. — — Power supply connection. Connect to the ground. —...
  • Page 22 5-INPUT 3-OUTPUT VIDEO SWITCH • • 5-input 3-output • Operating Voltage 4.0 to 6.5V • Operating current 15mAtyp. at Vcc= 5V • Crosstalk -65dBtyp. • Internal 6dB Amplifier • Internal 75 Driver • Bipolar Technology • Package Outline DIP16,DMP16 • Vin1 Vin2 Vout1...
  • Page 23 Low On-Resistance Wideband/Video Quad 2-Channel Mux/DeMux Features Description • High-performance solution to switch between video sources Pericom Semiconductor’s PI5V330 is a true bidirectional Quad 2-channel multiplexer/demultiplexer recommended for both RGB • Wide bandwidth: 200 MHz and composite video switching applications. The video switch can •...
  • Page 24 PIN CONNECTION AND IEC LOGIC SYMBOLS 2-12...
  • Page 25 2-13...
  • Page 26 Pin Assignment Block Diagram 2-14...
  • Page 27 Pin Descriptions Pin No. Function Pin circuit type VREF Reference voltage output (Vdda/2) Output MPXIN Base band (multiplex) signal input Input FLOUT Subcarrier output (filter output) Output Subcarrier input (comparator input) Input Vdda Analog system power supply (+5 V) — —...
  • Page 28 BLOCK DIAGRAMS – Vref TIME CHART Released Voltage Detector Threshold Hysteresis Detected Voltage –V Supply Voltage Minimum Operating Voltage Output Voltage (OUT) DEFINITION OF OUTPUT DELAY TIME t + 2.0V Input Voltage 0.7V +2.0V Output Voltage + 2.0V 2-16...
  • Page 29 2-17...
  • Page 30 PIN DESCRIPTION 2-18...
  • Page 31 PIN DESCRIPTION 2-19...
  • Page 32 PIN DESCRIPTION 2-20...
  • Page 33 Pin Assignment and Pin Functions The assignment of input/output pins for the T5CC1, their names and functions are as follows: 88 P65 DVCC 87 P64/SCOUT 86 P63/INT0 DVSS 85 P62/SI/SCL P50/AN0 84 P61/SO/SDA P51/AN1 83 P60/SCK P52/AN2 82 P43/CS3 P53/AN3/ADTRG 95 81 P42/CS2 P54/AN4 80 P41/CS1...
  • Page 34 DVCC [3] CPU (TLCS-900/L1) DVSS [3] ADTRG (P53) AN0 to AN7 10-Bit 8CH H-OSC (P50 to P57) Clock Gear EMU0 Converter AVCC, AVSS Clock doubler EMU1 VREFH, VREFL XT1 (P96) L-OSC XT2 (P97) TXD0 (P90) RESET SIO/UART/IrDA RXD0 (P91) 32 bits (SIO0) SCLK0/ (P92)
  • Page 35 PIN DESCRIPTION 2-23...
  • Page 36 PIN No. Pin Name Function 1,12,23 +VD1 Digital Power supply. Normally +2.5v 2,13,24 DGND Digital Ground AUD3 SPDIF transmitter output/Digital audio output(N.C) Host write strobe pin(connected to GND with an external resistor) Host parallel output enable pin(pulled up with an external resistor) CS_DA SPI Serial data input pin CS_CK...
  • Page 37 PIN ASSIGNMENT.(CS493264) DGND1 MCLK AUDATA3, XMT958 SCLK WR,DS,EMWR,GPIO10 LRCLK RD,R/W,EMOE,GPIO11 AUDATA0 A1,SCDIN AUDATA1 A0,SCCLK AUDATA2 6 5 4 3 2 1 44 43 42 41 40 DATA7,EMAD7,GPIO7 DATA6,EMAD6,GPIO6 DATA5,EMAD5,GPIO5 RESET DATA4,EMAD4,GPIO4 AGND CS493XX-CL 44-pin PLCC Top View DGND2 FILT1 DATA3,EMAD3,GPIO3 FILT2 DATA2,EMAD2,GPIO2 CLKSEL...
  • Page 38 Signal Names Logic Diagram A0-A19 Address Inputs DQ0-DQ7 Data Inputs/Outputs V CC DQ8-DQ14 Data Inputs/Outputs DQ15A–1 Data Input/Output or Address Input A0-A19 DQ0-DQ14 Chip Enable DQ15A–1 Output Enable M29W160ET Write Enable M29W160EB Reset/Block Temporary Unprotect Ready/Busy Output BYTE BYTE Byte/Word Organization Select Supply Voltage V SS Ground...
  • Page 39 PIN ASSIGNMENT FUNCTIONAL BLOCK DIAGRAM Top View DQ 0 DQ15 D D Q S S Q Clock DQ 1 DQ14 Generator DQ13 Bank D DQ 2 Bank C D D Q S S Q Bank B DQ12 DQ 3 Address DQ11 DQ 4 Address...
  • Page 40 2-28...
  • Page 41 2-29...
  • Page 42 TRANSISTOR, REGULATOR IC PIN DESCRIPTION TO-220IS TO-92S TO-92 TO-92L 1. Emitter 1. Emitter 1. Emitter 2. Collector 2. Collector 2. Collector 3. Base 3. Base 3. Base 1 2 3 1 2 3 1 2 3 1 2 3 1. GND 1.
  • Page 43 ELECTRICAL TROUBLESHOOTING GUIDE 219'4 %*'%- 01 2QYGT .'& 01 (.& %JGEM ( HWUG %JGEM ( HWUG +U 8 CRRNKGF +U 8 CRRNKGF %JGEM VJG (TQPV %KTEWKV VQ %0 RKP VQ %0 RKP %JGEM +% 4 %JGEM 3 && +U 8 CRRNKGF %JGEM 4 +U 8 CRRNKGF %JGEM &...
  • Page 44 8+&'1 2#46 %*'%- 8+&'1 176276 219'4 10 &QGU .QIQ CRRGCT QP VJG UETGGP! +U %0%0 EQPPGEVGF EQTTGEVN[! +U 8 CRRNKGF %JGEM &8& 8 VQ $0 +U %0%0 8 CRRNKGF EQPPGEVGF VQ , , EQTTGEVN[! +U VJG UETGGP XKUKDNG HTQO 4GRNCEG 8+&'1 $& 8%4 (WPEVKQP! 8 CRRNKGF 4GRNCEG /2') $&...
  • Page 45 #7&+1 2#46 %*'%- #7&+1 176276 219'4 10 +U 2QYGT r8%% %JGEM 2QYGT NKPG r88 EQTTGEVN[! +U 4; 10! %JGEM 3`3 +U (WPEVKQP OWVG %JGEM %0 YQTMGF EQTTGEN[ %100'%6+10 +U 8%4 4'% 176276 (41/ 5#6 4GRNCEG +0276 $& (70%6+10! 4GRNCEG #/2 $& 2-33...
  • Page 46 1. BLOCK DIAGRAM 2-34 2-35...

  • Page 47: Wiring Diagram

    2. WIRING DIAGRAM 2-36 2-37...

  • Page 48: Schematic Diagram

    3. SCHEMATIC DIAGRAM FRONT PART 2-38 2-39...
  • Page 49 VIDEO PART 2-40 2-41...
  • Page 50 MCU PART 2-42 2-43...
  • Page 51 INPUT PART 2-44 2-45...
  • Page 52 AMP PART 2-46 2-47...
  • Page 53 MPEG PART 2-48 2-49...
  • Page 54 MPEG PART 2-50 2-51...

  • Page 55: Printed Circuit Boards

    4. PRINTED CIRCUIT BOARDS FRONT PCB DATA VIEW 2-52 2-53...
  • Page 56 INPUT PCB DATA VIEW (TOP) 2-54 2-55...
  • Page 57 INPUT PCB DATA VIEW (BOTTOM) 2-56 2-57...
  • Page 58 AMP PCB DATA VIEW 2-58 2-59...
  • Page 59 MPEG PCB DATA VIEW (TOP) 2-60 2-61...
  • Page 60 MPEG PCB DATA VIEW (BOTTOM) 2-62 2-63...
  • Page 61 SECTION 3 ELECTRICAL PARTS LIST F : ± 1% J : ± 5% K : ±10% F : ± 1% J : ± 5% K : ± 10% DESCRIPTION REF NO. PART NO. REMARKS FRONT PCB ASS'Y (AH: COP11961B C: COP11961C)
  • Page 62 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 63 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 64 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 65 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 66 DESCRIPTION REF NO. PART NO. REMARKS INPUT PCB ASS'Y (AH: COP11962B C: COP11962C)
  • Page 67 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 68 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 69 DESCRIPTION REF NO. PART NO. REMARKS...
  • Page 70 DESCRIPTION REF NO. PART NO. REMARKS 3-10...
  • Page 71 DESCRIPTION REF NO. PART NO. REMARKS 3-11...
  • Page 72 DESCRIPTION REF NO. PART NO. REMARKS 3-12...
  • Page 73 DESCRIPTION REF NO. PART NO. REMARKS AMP PCB ASS'Y (AH: COP11964B C: COP11964C) 3-13...
  • Page 74 DESCRIPTION REF NO. PART NO. REMARKS 3-14...
  • Page 75 DESCRIPTION REF NO. PART NO. REMARKS 3-15...
  • Page 76 DESCRIPTION REF NO. PART NO. REMARKS 3-16...
  • Page 77 DESCRIPTION REF NO. PART NO. REMARKS 3-17...
  • Page 78 DESCRIPTION REF NO. PART NO. REMARKS MPEG PCB ASS'Y (ALL: CIP11975BSMD) 3-18...
  • Page 79 DESCRIPTION REF NO. PART NO. REMARKS 3-19...
  • Page 80 DESCRIPTION REF NO. PART NO. REMARKS 3-20...
  • Page 81 DESCRIPTION REF NO. PART NO. REMARKS 3-21...
  • Page 82 DESCRIPTION REF NO. PART NO. REMARKS 3-22...
  • Page 83 DESCRIPTION REF NO. PART NO. REMARKS 3-23...

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