NAD-T162-avr-sm 维修电路原理图.pdf

NADSERVICE MANUALT 762T 762AV SURROUNDSOUND RECEIVERAV SURROUNDSOUND RECEIVERDRAFT DATE: July 08RadioFans.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 DesignatorPart NumberDescriptionF751*AH33-0191001-00-88Fuse 10A 250V Time Lag 5x20 MM UL/CSAF751*C33-0181006-00-88Fuse 6.3A 250V Time Lag 5x20 MMUL/CSA/SEMKO/VDEF752*AH33-0111006-00-48Fuse 1.6A 250V Time Lag 5x20 MMUL/CSA/VDE/SEMKOF752*C33-0151006-00-48Fuse 800mA 250V Time Lag 5x20 MMUL/CSA/VDE/SEMKONOTE: : USA, CANADIAN MODEL ONLY.: EUROPEAN MODEL ONLY.2. 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 . 8BLOCK DIAGRAM . 9ADJUSTMENT POINTS DIAGRAM / AMPLIFIER ADJUSTMENT . 10PCB LAYOUT .11 - 22SCHEMATIC DIAGRAM . 23 - 38IC BLOCK DIAGRAM . 39 - 47EXPLODED VIEW. 48EXPLODED VIEW PARTS LIST. 49 - 50ELECTRICAL PARTS LIST . 51 - 65PACKING DIAGRAM . 66VERSION HISTORY . 67VERSION T762i PARTS LIST. 68Parts marked with the symbol are critical with regard to the risk of fire and electric shock.Replace only with parts recommended by the manufacturer.4SPECIFICATIONSPOWER AMPLIFIER SECTIONRated distortion(Rated power level into 8 ohms, THD 20 Hz-20 kHz FL/C/FR) 0.1 %(Rated power level into 8 ohms, THD 20 Hz-20 kHz SL/SR/BS) 0.1 %Input Sensitivity(ref. 8 ohms, 1 kHz)220 20 mVS/N Ratio(A-wtd, 1kHz, 1 W, 8 ohm, SL/SR/BL) - 72 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, 10 W, 1 kHz) -57 dBControlsBass(at 500 mV in, 1 W out, 100 Hz) 10 dB 2 dBTreble(at 500 mV in, 1 W out, 10 kHz) 10 dB 2 dBDOLBY DIGITAL SECTIONChannel Difference(FL ref. Track 30) 1.2 dBFrequency Resporse 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 W, 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(31 for O/P 1 W, Track 35)CCIR / ARM 65 dBAudio LPF 70 dBA-wtd 70 dBChannel Separation(1 W, 20 kHz LPF)Track 65 997 Hz 60 dBDOLBY PRO LOGIC II SECTIONFrequency ResporseI/P mode : L, R: 1 V in, 1 W, Ch L/R40 Hz0 2.0 dB20 Hz0 2.0 dBI/P mode : L=R: 1 V in, 1 W, Ch /L/R40 Hz0 2.0 dB Ch C20 kHz0 2.0 dBI/P mode : L=-R: 1 V in, 1 W, Ch SL/SR40 Hz0 2.0 dB20 kHz0 2.0 dBS/N Ratio (200 mV in, 1 W, 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, 1 W, w/ 80 kHz LPF, 1 kHz) 0.2 %5DTS SECTIONOutput Level (Vol 0 dB): FL/FR/C/SL/SRTrack 61 kHz0.5 2.0 WChannel Difference (FL ref): FL/FR/C/SL/SRTrack 61 kHz 1.0 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 1510.5 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 dBuVS/N Ratio(5 mV in) 38 dBTHD(5 mV in) 3 %IF Rejection(450 kHz) 36 dBImage Rejection(F+2xIF) 28 dBSelectivity 17 dBOutput170 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 dBV 15 dBuvS/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 dB I.F. Rejection(10.7 MHz) 78 dBPilot 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 dBOff 15 dB 15 dBRDS decode Sensitivity 26 dB PHYSICAL SPECIFICATIONSDimensions (Width x Height x Depth)435 x 167 x 382 mmNet Weight18.50 Kg (40.70 lbs)Shipping Weight22.20 Kg (48.84 lbs)6123456789212011191213141516171810 FRONT PANELREAR PANEL / FRONT PANEL VIEWREAR PANEL1.FM & AM ANTENNA2.MAIN IN / AUDIO PRE-OUTS /SUBWOOFER OUT3.SOFT CLIPPING ON/OFF4.MONITOR OUT5.MS OUT (MULTISOURCE OUT)6.CD INPUT7.IR INPUT & OUTPUT8.12V TRIGGER INPUT & OUTPUT9.COMPONENT VIDEO IN &COMPONENT VIDEO OUT10.DIGITAL AUDIO INPUT &DIGITAL AUDIO OUTPUT11.RS-23212.SWITCHED AC OUTLETS13.AC POWER INLET14.SPEAKERS A & B15.DVD, SAT, VCR, VIDEO 4 & VIDEO 516.TAPE INPUT & OUTPUT17.DISC INPUT18.7.1 CH. INPUTS1.POWER2.STAND-BY3.AM / FM4.FM MUTE / MODE5.DISPLAY6.MEMORY7.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.SPEAKERS A & B20.VIDEO 6 INPUT21.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. 1.145678910232.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. 1121111Figure No. 28THERM SENSNORUL VERSION :USE J758, J759CE VERSION :USE J760MOUNT ONCHASSIS GND82-0326135-07-98CABLE ASSY 3 WAYS #26 UL2877L=15036-2828201-71-XXFFC CABLE 28 PINSP1.25 L=200mm36-2828201-71-XXFFC CABLE 28 PINS P1.25L=200mmCABLE ASSY 2 WAYS 2.5PUL1533 L=540mm82-0426135-03-XXCABLE ASSY 4 WAYS 2.5PUL2468 L=540mm36-1728201-71-XXFFC CABLE 17 PINS P1.25 L=200mm36-2028121-71-XXFFC CABLE 20 PINS P1.25 L=120mm82-1226135-05-XXCABLE ASSY 12 WAYS #26UL2877 L=50mm82-1026135-01-XXCABLE ASSY 10 WAYS #26 2.5P UL2877 L=540mmTO MAIN BOARD82-0826135-04-XXCABLE ASSY 8 WAYS #26 2.5P TO MAIN BOARDTO MAIN BOARD82-0426135-01-XXCABLE ASSY 4 WAYS #26 2.5PUL2877 L=500mm82-0626135-03-XXCABLE ASSY 6 WAYS #26 UL2877 L=480mm82-0826135-03-XXCABLE ASSY 8 WAYS #26 UL2877L=450mm82-0326135-08-XXCABLE ASSY 3WAYS #26UL2854L=300mm82-0116435-02-XXCABLE ASSY 1 WAYS #16 UL1672BROWN L=400mm82-0116435-03-XXCABLE ASSY 1 WAYS #16 UL1672BLUE L=400mm82-1226135-00-XXCABLE ASSY 12 WAYS #26 2.5P UL2877 L=240mm82-0326135-04-XXCABLE ASSY 3 WAYS #26 2.5PUL2877 L=400mmFROM TRANSFORMER82-0626135-02-XXCABLE ASSY 6 WAYS#26 2.5P UL1533L=350mm82-0626135-04-XXCABLE ASSY 6 WAYS#26 2.5P UL1533L=540mm82-0818235-01-XXCABLE ASSY 8 WAYS #183.96P UL1672 L=150mm82-1426135-00-XX2.5P UL2877 L=420mm82-0318235-01-XXCABLE ASSY 3 WAYS #183.96P UL1015 L=240mm82-0518235-05-XX, CABLE ASSY 5(R/BR/O)82-0518235-04-XX, CABLE ASSY 5WAYS #18 3.96P UL1007L=250mm (V/BL/Y)82-0626135-05-XXCABLE ASSY 6WAYS #26 2.5PUL2877 L=120mm82-0418235-01-XXCABLE ASSY 4 WAYS #18 3.96PUL1007 L=280mm82-0418235-00-XXCABLE ASSY 4 WAYS #183.96P UL1007 L=120mm82-0318235-05-XXCABLE ASSY 3 WAYS#18 3.96P UL1015L=320mm82-0426135-00-XXCABLE ASSY 4 WAYS #26 2.5PUL2877 L=200mm82-1226135-04-XXCABLE ASSY 12 WAYS#26 2.5P UL1533x1CL=200mm82-0116436-12-XXCABLE ASSY 1 WAYS #16UL1672 BLUE L=100mm82-0116438-03-XXCABLE ASSY 1 WAYS #16UL1672 BROWN L=100mmBB82-0226135-02-XX#26 2.5P UL2468L=340mm82-0226135-03-XXCABLE ASSY 2 WAYS#26 2.5P UL2468L=440mmB BB BC CC82-0418235-02-XX, CABLE ASSY 4WAYS #18 3.96P UL1672 L=150mmC CC CC CCC C82-0318235-06-XXCABLE ASSY 3 WAYS#18 3.96P UL1015L=350mmC CC CC CKEYBOARDMAIN BOARDBOARDJ715AJ719AJ718AJ720A3AJ717AJ708AJ502BJ721AJ709AJ203J204BJ350BJ901BBOARDDSP BOARDJ604BJ715BJ1009BJ1010BLED BOARDPSU BOARDCOMPONENT VIDEOBOARDDIGITAL BOARDAUDIO BOARDVIDEO BOARDSPEAKER ABOARDSPEAKER BOARDTUNERPRE-OUT BOARDMULTI-CHANNELBOARDJ611AJ615BJ614BJ706AJ614AJ615AJ719BJ718BJ712BJ414AISC BOARDJ802AJ801AJ581AJ782AJ582AJ811BJ705BS-VIDEO BOARDAMP 2 BOARDAMP 1 BOARDM506J505AJ781BJ503BJ901AJ753AJ754BJ751BJ504AJ501AJ757J75661_LJ760J803A2J803A1WIRING DIAGRAMJ713BJ714B9OSDLC74763Pin14ACOutSpeakerOutputOutputSpeakerPin ( ST/MO, Mute, S Meter )CE/Data/Clk, RDSbusVFD DriverCPUStereo modeAC3 modeMulti Ch inby CPUcontrol4966VFDby CPU4966controlSpeakerOutputAUDIOMS4966controlby CPUcontrolby CPU4966MSVIDEOOUTCDV1V2V3V3V4V4V5TC9273ND/ACS-49326DSPEPROMFLConfigSelectorFRLRSLSRBSLBSRFLFRSELECTORVOLUMEM62446ELECTTREBLEBASSMUTEMUTEMUTEMUTEMULTI-CHOUTFLFRCPOWERAMPAMPPOWERSLSRCS5331DIRCS-8415COAXIAL 1COAXIAL 2COAXIAL 3A/D74LS157LRPROTECTCPUStand-byCPUCPUOUTCPUCPUCPUTC-9164ANCPUSLFRONT1234BSLBSRFRFLMULTI-CHINCPUCPUCPUCPUTUNEROUTDigital/AnalogselectorSCSRSLVideoSelectorBA-7625FLFRRelayRelayRelaySLSRCEncoderVolumeSensorRemoteKeyMatrixBoardTunerLEDSupplyPowerRelayAC InputMainStand-byPowerSupply+5V CPUAC InputCPULA1837 +LC72131 +BU1924LRFLFRCS4340D/AD/ABassRe-directCPUCSRESETABOOTDATA OUTCLOCK OUTA16A17CLOCK OUTDATA OUTM27C020CBF0F1F2E0E2AT24C02EEPRO-004TAPEINCS4340TAPEOUT96/2496/2496/24OPTICALV6SRBSLBSRELECTM62446VOLUMEMUTECPUSUB3CPU2CMUTERelayCPUPOWERAMPBSLBSRBSL96/24CS4340D/AIRIn/OutCPULC496674HC153OPTICAL OUTCOAXIAL OUTCPUONLEDProtectLEDLC4966Power-DownDetectMUTECPUBSRBSLBSLHead phonecontrol toCPUforce 2 channelL-CHMS LINE-AMPMS LINE-AMPR-CHMSLMSRV3V4V6CDV5TUNERCPUOUTINTAPETAPEV3V4OUTV1V2OUTTC9273N-004MSLMSRSelectorLC4966BA-7625VideoL-CHR-CHBLOCK DIAGRAMU202 VFD U201 A/V-R 10AMPLIFIER ADJ USTMENTIdle Current1.Rotate R522 fully clockwise.2.Connect DC millivoltmeter to P501 (i.e. Across half of R523, 0.22 Ohm resistor).3.Turn on the unit.4.Adjust R522 for 1mV reading on voltmeter.5.Leave power on for at least 5 min, and check for idle current again.6.Repeat for other channels.CHANNELJUMPERVRFLP503R571FRP502R545CP501R522SLP801R835SRP802R836BSP803R897ISC Sensitivity1.Connect 8 ohm loading to all channels.2.Rotate R881 fully clockwise.3.Load all channels at full power using 1kHz sine wave.4.At this time, monitor the THD of the SL,SR,BS output. Clipping should occur before full power achieved.5.Rotate R834 counter-clockwise slowly until the THD just below 0.1%.6.Repeat step 2-5 for R834 but monitor FL, FR & Center output.7.The procedure is finish at this step.8.Load all channels at full power using 1kHz sine wave with 4 ohm load.9.The clipping power(at THD 0.1%) should less than 85W.ADJ USTMENT POINT DIAGRAMR522R545R571P501P502P503R835P801R836R897P803P802R834FRONT/CENTER AMPLIFIER BOARDSURROUND AMPLIFIER BOARDISC BOARD11PCB LAYOUTAUDIO BOARD - COMPONENT SIDEAUDIO BOARD - COPPER SIDE12COMPONENT VIDEO BOARD - COMPONENT SIDECOMPONENT VIDEO BOARD - COPPER SIDEDIGITAL BOARD - COMPONENT SIDE SIDEDIGITAL BOARD - COPPER SIDE13DSP BOARD - COPPER SIDE NLADSP BOARD - COMPONENT SIDE NLA14FRONT/CENTER AMPLIFIER BOARD15SURROUND AMPLIFIER BOARD16KEY BOARD/POWER SWITCH- COMPONENT SIDEKEY BOARD/POWER SWITCH- COPPER SIDE17MAIN BOARD18MULTI-CHANNEL BOARD - COMPONENT SIDEMULTI-CHANNEL BOARD - COPPER SIDE19POWER SUPPLY (STANDBY) / LED BOARDISC BOARD- COMPONENT SIDEISC BOARD- COPPER SIDE20PRE-OUT BOARD - COPPER SIDEPRE-OUT BOARD - COMPONENT SIDERS-232 BOARD- COPPER SIDE- COMPONENT SIDE21SPEAKER TERMINAL BOARDTRIGGER BOARDVIDEO 6 BOARDSECONDARY BOARD22S-VIDEO BOARDCOMPOSITE VIDEO BOARD23DTA144ESADTC144ESAE C BSCHEMATIC 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%.24COMPONENT 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%.25E C B2SA933DTC144ESAE C BDTC114ESADT A114ESADTC123ESADT A144ESAE 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%.26ISCE C B2SA10152SC1815RNRNRNRNE C B2SA1016K2SC2362RESISTORS : RN-CERMIC CASE, MO-METAL OXIDE, F-FUSIBLE UNLESS OTHERWISESPECIFIED ARE CARBON FILM.NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.3. COMPONENTS MARKED “” ARE SAFETY CRITIAL PARTS.27POWER SUPPLY (SECONDARY)NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. COMPONENTS MARKED “” ARE SAFETY CRITIAL PARTS.28POWER SUPPLY (STAND BY)(F)(120V AH, only)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.29TRIGGERDTC123ESAE 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%.30VIDEO 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%.31E C B2SA933E C B2SC1740E C B2SC2878DTC144ESADTC123ESADT A144ESAE C BS-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%.32E C B2SA10162SC2362B C E2SA16062SC4159B C E2SA20312SC5669E C B2SC1740SE C B2SB772E C B2SD600K2SD631KDTC123ESAE C BRNRNRNFRONT / CENTER AMPLIFIERNOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.3. COMPONENTS MARKED “” ARE SAFETY CRITIAL PARTS.RESISTORS : RN-CERAMIC CASE, MO-METAL OXIDE, UNLESSOTHERWISE SPECIFIED ARE CARBON FILM.33SURROUND / BACK SURROUND AMPLIFIERRNRNRNE C B2SC2362E C B2SA10152SA1815B C E2SA16062SC4159B C E2SA20312SC5669E C B2SD600K2SD631KDTC123ESAE C BE C B2SA1016K2SC2362E C B2SC1740SE C B2SB772RESISTORS : RN-CERAMIC CASE, MO-METAL OXIDE, 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%.3. COMPONENTS MARKED “” ARE SAFETY CRITIAL PARTS.34SPEAKER A & BRS-232NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED,ARE 1/6W, 5%.35Cutting line for folded page!E C B2SC1815E C BRN1241DT A114ESAE C BDSP T762 NLA (refer to the T762 addendum)NOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 10%.36Cutting line for folded page!E C B2SC1815KEYBOARDNOTE:1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/6W, 5%.2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V, 5%.37Cutting line for folded page