NAD-T163PII-pre-sm 维修电路原理图.pdf

NADSERVICE MANUALT 163T 163PHASE II & VCAV Tuner PreamplifierDRAFT DATE: 16 AUG 2005RadioFans.CN 收音机爱 好者资料库2SAFETY INFORMATIONRadioFans.CN 收音机爱 好者资料库3SERVICE SAFETY PRECAUTIONS1. Replacing the fusesCAUTION:FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OFFUSE.Reference DesignatorSCMPart NumberDescriptionF751370-015100-04(4)33-0151009-00-88FUSE 500mA 250VAC TIME-LAG5X20mm 5T UL/CSA/VDE/SEMKOF752370-011100-07(5)33-0111009-00-88FUSE 1A 250VAC TIME-LAG5X20mm 5T UL/CSA/VDE/SEMKO2. Safety check out(Only U.S.A. model)Before returning the product to the customer, make leakage current or resistance measurements to determinethat exposed parts are acceptably insulated from supply circuit.CONTENTSDESCRIPTIONPAGESPECIFICATIONS. 4 - 5REAR PANEL / FRONT PANEL VIEW . 6DISASSEMBLY INSTRUCTIONS . 7WIRING DIAGRAM. 8 - 9BLOCK DIAGRAM. 10SPECIAL FUNCTION .11DETAILS & WAVEFORMS ON SYSTEM & TEST & DEBUGGING .11PCB LAYOUT . 12 - 20SCHEMATIC DIAGRAM . 21 - 33IC BLOCK DIAGRAM . 34 - 41EXPLODED VIEW. 42EXPLODED VIEW PARTS LIST. 43 - 44ELECTRICAL PARTS LIST . 45 - 56PACKING DIAGRAM . 57Parts marked with the symbol are critical with regard to the risk of fire and electric shock.Replace only with parts recommended by the manufacturer.4SPECIFICATIONSPRE AMPLIFIER SECTIONRated distortion(1 VPre-out, THD 20 Hz-20 kHz FL/C/FR) 0.1 %(1 VPre-out, THD 20 Hz-20 kHz SL/SR/BS) 0.1 %Input Sensitivity(1 VPre-out, 1 kHz)390 20 mVS/N Ratio(A-wtd, 1kHz, 1 VPre-out, FL/C/FR/SL/SR/BL) 80 dBFrequency Response(20 Hz - 20 kHz)0 1.0 dBChannel Balance(1 dB to -40 dB, 1 kHz) 2 dB(-41 dB to -50 dB, 1 kHz) 3 dBAudio muting at 1 kHz 55 dBSubwoofer out, 500 mV in (THD at 2 V O/P, 100 Hz) 0.5 %Crosstalk(500 mV input, 1 V Pre-out) 60 dBControlsBass(at 500 mV in, 1 V Pre-out, 100 Hz) 10 dB 2 dBTreble(at 500 mV in, 1 V Pre-out, 10 kHz) 10 dB 2 dBDOLBY DIGITAL SECTIONChannel Difference (FL ref. Track 30) 1.2 dBFrequency Response at Dolby config.2SL Track 46 200 - 20 kHz 0.8 dBSR Track 47 200 - 20 kHz 0.8 dBC Track 44 200 - 20 kHz 0.8 dBHarmonic Distortion (1 VPre-out, Audio LPF, Dolby Congfig 1) FL Track 65 997 Hz 0.08 %FR Track 67 997 Hz 0.08 %SL Track 68 997 Hz 0.08 %SR Track 69 997 Hz 0.08 %C Track 66 997 Hz 0.08 %S/N Ratio(TRACK 30 for O/P 100 mV, PAUSE) CCIR / ARM 65 dBAudio LPF 70 dBA-WTD 70 dBDOLBY PRO LOGIC II SECTIONFrequency ResponseI/P mode : L, R: 1 V in, 100 mV Pre-out, Ch L/R40 Hz0 2.0 dB20 kHz0 2.0 dBI/P mode : L=R: 1 V in, 100 mV Pre-out, Ch /L/R40 Hz0 2.0 dB Ch C20 kHz0 2.0 dBI/P mode : L=-R: 1 V in, 100 mV Pre-out, Ch SL/SR 40 Hz0 2.0 dB20 kHz0 2.0 dBS/N Ratio (200 mV in, 100 mV Pre-out, A-WTD w/ 1 k termination)I/P mode : L, R: 1 kHz, Ch L/R 65 dBI/P mode : L=R: 1 kHz, Ch C 65 dBI/P mode : L=-R: 1 kHz, Ch SL/SR 65 dBTHD (2.2 V in, 100 mV Pre-out, w/ 80 kHz LPF, 1 kHz) 0.2 %5DTS SECTIONOutput Level (Vol 0 dB): FL/FR/C/SL/SRTrack 61 kHz70 10 mVChannel Difference (FL ref): FL/FR/C/SL/SRTrack 61 kHz 1.5 dBHarmonic Distortion (Audio Filter) : FL/FR/C/SL/SRTrack 10-14 1 kHz 0.08 %Frequency Response (20 Hz to 20 kHz)Track 26-30+2/-1.5Subwoofer Output Level1 kHz ref at pre-out (FL)Play Track 10, charge to 1512.5 1.5 dBAM TUNER SECTIONInput level is expressed as the reading in open circuitof 75-ohm source impedance signal generatorUsable sensitivity(999/1000 kHz) 30 dB VS/N Ratio(5 mV in) 38 dBTHD(5 mV in) 3 %IF Rejection(450 kHz) 36 dBImage Rejection(F+2xIF) 28 dBSelectivity 17 dBOutput200 20 mVLoop sensitivity(20 dB S/N)999/1000 kHz 66 dB603/600 kHz 66 dB1404/1400 kHz 66 dBFrequency Response(100 - 2.3 kHz, 5 mV) 6 dBFM TUNER SECTION*C*AHInput level is expressed as the reading in open circuitof 75-ohm source impedance signal generatorUsable sensitivity(98 MHz) 15 dB 15 dB vS/N Ratio(60 dB, IHF wtd)Mono 63 dB 63 dBStereo 63 dB 63 dBFrequency Response(20 Hz - 15 kHz, 60 dB)0 1.5 dB0 1.5 dBChannel Separation(60 dB)100 Hz 30 dB 30 dB1 k 38 dB 38 dB10 kHz 30 dB 30 dBAlternate Channel Selectivity (40 dB 400 kHz) 60 dB 45 dBCapture Ratio(40 dB) 3 dB 3 dBAM Suppression (60 dB, 100% Mod. FM, 30% Mod. AM) 48 dB 48 dBImage Rejection(119.4 MHz) 65 dBI.F. Rejection(10.7 MHz) 78 dB Pilot Suppression(98 MHz) 60 dB 60 dBTHD (60 dB, L=R 75 kHz for AH, 40 kHz Dev for C)Mono 0.25 % 0.25 %Stereo 0.35 % 0.35 %Auto-Search SensitivityOn 24 dB 24 dB Off 15 dB 15 dB RDS decode Sensitivity 26 dB PHYSICAL SPECIFICATIONSDimensions (Width x Height x Depth)435 x 150 x 399 mmNet Weight8 Kg (17.60 lbs)Shipping Weight10.2 Kg (22.40 lbs)6FRONT PANELREAR PANEL / FRONT PANEL VIEWREAR PANEL1.MONITOR OUT2.CD INPUT3.FM & AM ANTENNA4.DIGITAL AUDIO INPUT &DIGITAL AUDIO OUTPUT5.COMPONENT VIDEO IN &COMPONENT VIDEO OUT6.POWER SWITCH7.120V / 230V VOLTAGE SELECTOR8.RS-2329.AUTO TRIGGER SWITCH10.AC POWER INLET11.MS OUT (MULTISOURCE OUT)12.IR INPUT & OUTPUT13.DVD, SAT, VCR, VIDEO 4 & VIDEO 514.PRE-OUTS / SUBWOOFER OUT15.TAPE INPUT & OUTPUT16.DISC INPUT17.7.1 CH. INPUTS1.STANDBY SWITCH2.STANDBY LED3.AM / FM4.DISPLAY5.MEMORY6.FM MUTE / MODE7.PRESET DOWN / UP8.SEARCH DOWN / UP9.VFL DISPLAY10.VOLUME (SETUP)11.VIDEO & AUDIO12.TAPE MONITOR13.DIGITAL AUDIO SELECTOR14.EXT. 7.115.SURROUND MODE16.LEVELS17.TONE CONTROLS18.TONE DEFEAT19.VIDEO 6 INPUT20.PHONES7DISASSEMBLY INSTRUCTIONS1.Remove machine screws M4.0 x 8.0 (1 to 6) from the side panels.Remove tapping screw 3.0 x 8.0 (7 to 10) from the back panel.Refer to Figure No. 1.2.Pull both sides of the TOP COVER slightly outwards 11 and tilt approx. 35 and then removein the direction as indicated by the arrow 12. Refer to Figure No. 2.Figure No. 1Figure No. 28WIRING DIAGRAMAUDIO BOARDPRE-OUT BOARDMULTI-CHANNELCOMPONENTVIDEO BOARDDIGITAL BOARDTRIGGERBOARDPOWER SUPPLYBOARDMAIN BOARD POWER SWITCHBOARDJ203AJ753BKEYBOARDJ350BJ204BJ901BTUNERJ3103BJ709BVIDEO 6 BOARDJ204AJ350AJ753AJ901APOWER LED BOARDFROM TRANSFORMERJ751BFROM TRANSFORMERJ754BJ757AJ756AJ756BJ757BT163 PHASE II WIRE DIAGRAM REV.A DATE 12-7-2005J705AJ708AJ707AJ710AJ712AJ711AJ717AJ719AJ720AJ715AJ713AJ714AJ709AJ724AJ783AJ782J714BJ713BJ604BJ203BJ715BDSP BOARDJ1010BJ1009BJ604AJ1009A724BJ719BJ717BJ601AJ602AJ603AJ601BJ602BJ603BJ708BJ707BJ705BJ712BJ711BJ710BM783AJ414BJ414AJ1010AP4401P4402J201J3103AJ607BJ607AJ606AJ606BVIDEO BOARDS-VIDEO BOARDMS OUTBOARD2345598101112131415161920222322171819ITEMPART NO.DESCRIPTIONREMARK1276-042613-08CABLE ASSY 4 WAYS AWG=26 2.5PAUDIO BD-J3103AL=450mm YB03091104-022276-022613-32CABLE ASSY 2 WAYS AWG26X1C UL1533DIGITAL BD-J1009AL=360mm (UL LABEL)3276-042613-07CABLE ASSY 4 WAYS AWG=26 2.5P UL2468DIGITAL BD-J1010AL=400mm4276-042613-10CABLE ASSY 4 WAYS AWG=26 2.5P UL2877DIGITAL BD-J901AL=430mm5276-011843-01CABLE ASSY 1 WAY AWG18 UL1007 BLACKKEYBOARD-J201L=100mm W/ RING TERMINAL6276-052613-08CABLE ASSY 5 WAYS #26 2.5P UL1007LED BD-J204AL=160mm7276-032613-18CABLE ASSY 3 WAYS AWG=26 2.5PMAIN BD-J606B,L=110mmJ607B8276-032613-29CABLE ASSY 3 WAYS AWG26X2C UL2547MAIN BD-J715AL=210mm (UL LABEL)9276-082613-22CABLE ASSY 8 WAYS AWG=26X3CMAIN BD-J709AL=480mm10276-052613-06CABLE ASSY 5 WAYS AWG=26 2.5P UL2468MS BD-M783BL=120MM11276-032613-06CABLE ASSY 3 WAYS AWG=26 2.5P UL2854PO BD-J724BL=250mm12276-042613-07CABLE ASSY 4 WAYS AWG=26 2.5P UL2468PSU BD-J753AL=400mm13276-011643-04CABLE ASSY 1 WAY AWG=16 UL1672 BROWNPW BD-J756AL=160mm14276-011643-05CABLE ASSY 1 WAY AWG=16 UL1672 BLUEPW BD-J757AL=160mm15276-082613-20CABLE ASSY 8 WAYS AWG=26 2.5P UL1007SV BD-J414AL=380mm16276-102613-12CABLE ASSY 10 WAYS AWG=26 2.5P UL1007TR BD-J350AL=540mm (UL LABLE)17276-011643-06CABLE ASSY 1 WAY AWG16 UL1007 BLACKV6 BD-P4402L=70mm W/ RING TERMINAL18276-011843-01CABLE ASSY 1 WAY AWG18 UL1007 BLACKV6 BD-P4401L=100mm W/ RING TERMINAL19238-172829-00FFC CABLE 17 PINS P1.25 UL2896 L=290mmJ720CW/ SHIELD20238-200012-00FFC CABLE 20 PINS P1.25 L=120mmJ604CW/ SHIELD21238-280016-00FFC CABLE 28 PIN P1.25 L=160mmJ602C,J603CW/ SHIELD22238-280120-00FFC CABLE 28 PINS P1.25 L=200mmJ713C,J714CW/SHIELD23238-302807-00FFC CABEL 30 PINS P1.25 L=70mmJ601C10BLOCK DIAGRAM11SPECIAL FUNCTIONFEATUREA AKEYS PRESS ON FRONT PANELRESET FOR AH VERSIONVIDEO + TONE DEFEATRESET FOR C VERSIONVIDEO + TONE CONTROLSNTSC / PAL SELECTIONVIDEO + MEMORYVFD ALL DISPLAYAUDIO + TAPE MONITORAM FREQ. STEPAM/FM + FM MUTECOLOUR BAR GENERATORAUDIO + DIGITAL AUDIO(VC-version units only)(all monitor outputs will show the generated colour bar)DETAILS & WAVEFORMS ON SYSTEM TEST & DEBUGGINGT89C51RD2 (U202) main clock is at 20MHz (X202)T89C51RD2 (U201) main clock is at 20MHz (X201)UPPER - +5V supply to KEYBOARD when power upLOWER - RESET line (TCM810LENB713) whenpower upUPPER - OUTPUT ENABLE (pin 24) of EPROM(W27C02) when changing SURROUND MODESLOWER - CHIP ENABLE (pin 22) of EPROM(W27C02) when changing SURROUND MODESSCLK (pin 43 of CS49326)LRCLK (pin 42 of CS49326)MCLK (pin 30 of CS49326)NOTE: The waveforms are based on software version V2.13V.12PCB LAYOUTAUDIO BOARDCOMPOSITE VIDEO BOARD13aCOMPONENT VIDEO BOARDDIGITAL BOARD13bCOMPONENT VIDEO BOARD - COMPONENT SIDECOMPONENT VIDEO BOARD - COPPER SIDE13cCOMPONENT VIDEO BOARD revision 3 - COMPONENT SIDECOMPONENT VIDEO BOARD revision 3 - COPPER SIDE14DSP BOARD - COPPER SIDEDSP BOARD - COMPONENT SIDE15KEY BOARD / LED BOARD- COMPONENT SIDEKEY BOARD / LED BOARD- COPPER SIDE16MAIN BOARD17MULTI-CHANNEL BOARD - COMPONENT SIDEMULTI-CHANNEL BOARD - COPPER SIDE18POWER SUPPLY (STANDBY)S-VIDEO BOARD19PRE-OUT BOARD - COMPONENT SIDEPRE-OUT BOARD - COPPER SIDE20MULTI SOURCEPOWER SWITCHVIDEO 6 BOARDLED BOARDTRIGGER BOARD21SCHEMATIC DIAGRAMAUDIO SWITCHRESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.22aCOMPONENT VIDEORESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.22bCOMPONENT VIDEONOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5% CARBON FILM.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.3. SOME COMPONENTS & FEATURES MAY NOT BE AVAILABLE:A) INPUT FILTER TO TV5146B) SIGNAL 5146_VMUTE (previously named RGB_MUTE), WHICH EXTENDS THE MUTE SIGNAL TO BOTH THE S-VIDEO AND CVBS CIRCUITS 23E C B2SDTC144ESAE C BDTA144ESAE C BCOMPOSITE VIDEORESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.24POWER SUPPLY (STAND BY)E C B2SC1815RESISTORS : F-FUSIBLE, UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. COMPONENTS MARKED ARE SAFETY CRITIAL PARTS.25TRIGGERD C 2 ESE C BRESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.26VIDEO 6RESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.27DIGITAL IN & OUT28E C B2SA933E C B2SC1740E C B2SC18152SC2878DTC144ESADTC123ESAE C BS-VIDEONOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.29E B C2SD600KDTC114ESADTA114ESAE C BMAIN BOARDNOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.30E C BRN1241DTA114ESAE C BE C B2SA1016K2SC2362PRE-OUTNOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 5%.31E C B2SC1815DSPRESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.32KEYBOARDE C B2SCE C B2SC 0NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 5%.33E C B2SC2878E B CSS8050SS8550DTA114ESADTC114ESAE C BMUTLI-CHRESISTORS : UNLESS OTHERWISE SPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.34IC BLOCK DIAGRAM12345678910DIRA1A2A3A4A5A6A7A8GND20191817161514131211VCCGB1B2B3B4B5B6B7B8(1)(2)(3)(4)(5)(6)(7)(8)(9)(11)(19)(18)(17)(16)(15)(14)(13)(12)OECKD01DC1END1D2D3D4D5D6D7Q0Q1Q2Q3Q4Q5Q6Q774LVQ574DSP BOARD: U1008, U1009W27C020DSP BOARD: U1007Q0Q7CEOEA0CONTROLOUTPUTBUFFERCOREARRAYDECODERPGMVCCGNDVPPA1731222474LVC245DSP BOARD: U1002, U1003, U101474VHC245KEYBOARD: U209NJM5532 / NJM4558DSP BOARD: U1011U1013, U1023 & U1025MULTI-CHANNEL: U604U607PRE-OUT BOARD: U609U613MAIN BOARD: U7081A- +2348765B+ -CS4360KZDSP BOARD: U102635CS49326DSP BOARD: U1001CS8415ADSP BOARD: U1005CS4392DSP BOARD: U10253674HCU04DIGITAL & RS232 BOARD:U1201 & U12021A1Y2A2Y3A3YGND12345671413121110986AVCC6Y5A5Y4A4Y74HC251DIGITAL & RS232 BOARD:U1203PIN4 D0W PIN6Y PIN5PIN8 GNDPIN16 VCCPIN7 STROBES0PIN3 D1S1PIN2 D2S2PIN1 D3S3PIN15 D4S4PIN14 D5S5PIN13 D6S6PIN12 D7PIN11 APIN10 BPIN9 CS7S0S0S1S1S2S2S3S3S4S4S5S5S6S6S7S7DS232ADIGITAL & RS232 BOARD:U90137TCM810KEYBOARD: U214AT24C16KEYBOARD: U210SDAVSSSCLWCVCC/ E2M24Cxx12348765/ E2/ E2/ E2NC/ E1/ E1/ E1/ NCNC/ E0/ E0/ NC/ NCNC/1Kb/2Kb/4Kb/8Kb16KbVCCRESET*(RESET)GNDTCM809xENBTCM810 xENB123*3-Pin SOT-23BNOTE: *3-Pin SOT-23B is equivalent to JEDEC TO-236 * () is for TCM810VDDCONTACONTDIN/OUTIN/OUTOUT/INSW DSW COUT/ININ/OUT OUT/IN OUT/IN IN/OUTVSSCONTBCONTC1489101112131765432SW ASW BSWASWDSWBSWCLC4966COMPOSITE VIDEO: U4201S-VIDEO BOARD: U4104MULTI-CHANNEL: U6103CS5333KZDSP BOARD: U102738HCF4094BKEYBOARD: U204U207, U211DSP BOARD: U1029SERIALINCLOCKSTROBELATCH 13-STATE1OUTPUTENABLE2SERIALOUTQS10SERIALOUTQS9151D QCLCL3CLCL1CLCL2D QCLCLLATCH2TRTRLATCH3TRTR3-STATE23-STATE33D QCLCLQSTAGES3 - 722222222Q3Q2Q1VSSVDDQ7Q8Q6Q5Q4CLCLCLCLpnTLTLpnpnTLTLp npnVDDVSSPCB44454337364138RDIOBKLATBLDIORDINRDOUTLDINLDOUTDIRCLKSQ1SQ64QB1HVO1HVO23GQB23DIRECTIONCONTROLUNITSHIFTUNITLATCHUNITDIRRDIOLDIODIRCLKBQB24HVO24HVO41GQB41LATCHUNIT51738299QB42HVO42HVO64GQB64LATCHUNIT0830VDD2 02 31 50 79VSS2 05 34 47 76PT6306KEYBOARD: U20339T89C51RD2KEYBOARD: U201 & U202BA7625COMPOSITE VIDEO BOARD: U4202 & U4203S-VIDEO BOARD: U4102 & U410374HC4051KEYBOARD: U208S-VIDEO BOARD: U4102, U4103COMPOSITE VIDEO: U420146COM OUT/IN75INHVEEGND12345678161514131211109VCC2103ABCCHANNELSIN/OUTCHANNELSIN/OUTCHANNELSIN/OUT74HC40514002COM Y OUT/IN31INHVEEGND12345678161514131211109VCC21COM X OUT/IN03ABY CHANNELSIN/OUTX CHANNELSIN/OUTX CHANNELSIN/OUTY CHANNELSIN/OUT74HC4052BA7660FSCOMPONENT VIDEO BOARD: U4301MUTEINAGNDINBGNDN.C.INCGND12345678161514131211109OUTA1VCCOUTA2OUTB1OUTB2N.C.OUTC1OUTC275W6dB75W6dB6dB75W74HC4052COMPONENT VIDEO BOARD: U4302 & U4303LC74763S-VIDEO BOARD:U410141M61516FPMULTI-CHANNEL BOARD: U601 & U60242EXPLODED VIEW43EXPLODED VIEW PARTS LIST1177-009006-01(8)25-0090060-30-20TRANSFORMER PW TOROIDAL 117V/234V12 *AH560-400000-02(7)29-4000004-00-38AM/FM TUNER MODULE KST-MB114MA0-231 *C560-400000-00(5)29-4000002-00-38AM/