Jvc-SRHD-1250-US-Service-Manual电路原理图.pdf

SERVICE MANUALCOPYRIGHT © 2010 Victor Company of Japan, LimitedNo.YD1252010/1BLU-RAY DISC & HDD RECORDER YD12520101SERVICE MANUALSR-HD1250US, SR-HD1500US, SR-HD1500KR, SR-HD1250EU, SR-HD1500EU, SR-HD1500ER, SR-HD1500AG, SR-HD1500ACCOPYRIGHT © 2010 Victor Company of Japan, LimitedTABLE OF CONTENTS1 PRECAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.1 SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53.1 Removing the top cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53.2 Removing the front panel assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53.3 Removing the HDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53.4 Removing the BD drive unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53.5 Removing the REG/SD board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63.6 Removing the BE-DIGITAL board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63.7 Removing the D-SUB/BNC board and TERMINAL board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63.8 Removing the DISPLAY board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-75 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-75.1 DISPLAYING TEST MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-75.2 UPDATING MAIN UNIT FIRMWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-75.3 UPDATING SYSCON FIRMWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-85.4 UPDATING DRIVE FIRMWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-85.5 INITIALIZING TO FACTORY SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-95.6 REPLACING HDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-105.7 Exchanging the fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-115.8 Taking out a disc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-115.9 DISPLAYING MAINTENANCE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12STOP REV PLAY PAUSEFWDOPEN/CLOSESTANDBY/ONHDV/DV INRECSDREC CERDDHBDONE TOUCHDUBBINGRECMODERESETINPUTSELECT HDDMIDIA SELECTBD/SD1-2 (No.YD125)SPECIFICATIONSR-HD1250US SR-HD1500US SR-HD1500KR SR-HD1250EU SR-HD1500EU SR-HD1500ER SR-HD1500AG SR-HD1500ACGENERALPower requirement AC 120 V, 60 Hz AC 220-240V, 60HzAC 220-240V, 50Hz/60HzPower consumption Power on: 34 WPower off: 3.0 WPower on: 34 WPower off: 3.0 WPower on: 34 WStandby: 0.5 WLaser specifi-cationFor CD Wavelength: 779 to 789 nmOutput: 13.1 mW (Operating condition)For DVD Wavelength: 656 to 663 nmOutput: 9.02 mW (Operating condition)For BD Wavelength: 400 to 410 nmOutput: 17.3 mW (Operating condition)Temperature Operating 5°C to 35°C (41°F to 95°F) 5°C to 35°C Storage -20°C to 60°C (-4°F to 140°F) -20°C to 60°COperating position Horizontal onlyDimensions (WxHxD) 435 mm x 70 mm x 351 mm(17-1/10“ x 2-6/8“ x 13-13/16“)435 mm x 70 mm x 351 mmWeight 5.0 kg (11.0 lbs) 5.1 kg (11.2 lbs) 5.1 kg 5.0 kg 5.1 kg Input/OutputVideo input 1.0 Vp-p, 75 (BNC)Video output 1.0 Vp-p, 75 (BNC)Audio input Max 2 Vrms / 10 k (pin jack)Audio output 2 Vrms 10 k terminated (pin jack)S-video input Y: 1.0 Vp-p, 75C: 0.286 Vp-p, 75 S-video output Y: 1.0 Vp-p, 75 C: 0.286 Vp-p, 75 DV 4-pin for HDV/DV INRemote Input 3.5 mm JackSerial Command - D-SUB 9-PIN - D-SUB 9-PIN -Component video output Y: 1.0 Vp-p, 75 CB/CR, PB/PR: 0.7 Vp-p, 75 Corresponding to copy protectionDigital audio output Optical : PCM, AAC, Dolby Digital and DTSHDMI output 19-pin type A(Deep Color, x.v.Color, Ver1.3)USB terminal USB2.0SD memory cardSD, SDHCHDD Deck250GB 500GB 250GB 500GBRecordingcompressionsystemVideo MPEG2 (VBR)H.264/AVCAudio Dolby Digital (2 ch)Linear PCM (2ch, XP mode only)BD/DVD DeckRecordingcompressionsystemVideo MPEG2 (CBR/VBR)H.264/AVCAudio Dolby Digital (2 ch)Linear PCM (2ch, XP mode only)RegioncodeBD : Region ADVD : #1BD : Region ADVD : #3BD : Region BDVD : #2BD : Region CDVD : #5BD : Region ADVD : #3BD : Region CDVD : #6ACCESSORIESProvided accessories AC power cord,Audio/Video ca-ble,BNC male to RCA female adapter,Infrared remote control unit,”AA” battery x 2,CD-ROMAC power cord,Audio/Vid-eo cable,BNC male to RCA fe-male adapter,In-frared remote control unit,”AA” battery x 2AC power cord (for continental Eu-rope, etc),AC power cord (for U.K.),Audio/Video cable,Infrared remote control unit,”AA” battery x 2,CD-ROMAC power cord,Audio/Video ca-ble,Infrared remote control unit,”AA” battery x 2,CD-ROMAC power cord,Audio/Vid-eo cable,Infra-red remote control unit,”AA” battery x 2(No.YD125)1-3SECTION 1PRECAUTION1.1 SAFETY PRECAUTIONSPrior to shipment from the factory, JVC products are strictly in-spected to conform with the recognized product safety and elec-trical codes of the countries in which they are to besold.However,in order to maintain such compliance, it is equallyimportant to implement the following precautions when a set isbeing serviced.1.1.1 Precautions during Servicing(1) Locations requiring special caution are denoted by labelsand inscriptions on the cabinet, chassis and certain parts ofthe product.When performing service, be sure to read andcomply with these and other cautionary notices appearingin the operation and service manuals.(2) Parts identified by the symbol and shaded ( ) partsare critical for safety.Replace only with specified part numbers.NOTE :Parts in this category also include those specified tocomply with X-ray emission standards for productsusing cathode ray tubes and those specified forcompliance with various regulations regarding spu-rious radiation emission.(3) Fuse replacement caution notice.Caution for continued protection against fire hazard.Replace only with same type and rated fuse(s) as speci-fied.(4) Use specified internal wiring. Note especially: Wires covered with PVC tubing Double insulated wires High voltage leads(5) Use specified insulating materials for hazardous live parts.Note especially: Insulation Tape PVC tubingSpacers Insulation sheets for transistors Barrier(6) When replacing AC primary side components (transformers,power cords, noise blocking capacitors, etc.) wrap ends ofwires securely about the terminals before soldering.Fig.1-1-1(7) Observe that wires do not contact heat producing parts(heatsinks, oxide metal film resistors, fusible resistors, etc.)(8) Check that replaced wires do not contact sharp edged orpointed parts.(9) When a power cord has been replaced, check that 10-15kg of force in any direction will not loosen it.Fig.1-1-2(10) Also check areas surrounding repaired locations.(11) Products using cathode ray tubes (CRTs) In regard to suchproducts, the cathode ray tubes themselves, the high volt-age circuits, and related circuits are specified for compli-ance with recognized codes pertaining to X-ray emission.Consequently, when servicing these products, replace thecathode ray tubes and other parts with only the specifiedparts. Under no circumstances attempt to modify these cir-cuits.Unauthorized modification can increase the high volt-age value and cause X-ray emission from the cathode raytube.(12) Crimp type wire connector In such cases as when replac-ing the power transformer in sets where the connectionsbetween the power cord and power trans former primarylead wires are performed using crimp type connectors, ifreplacing the connectors is unavoidable, in order to preventsafety hazards, perform carefully and precisely accordingto the following steps. Connector part number :E03830-001 Required tool : Connector crimping tool of the propertype which will not damage insulated parts. Replacement procedurea) Remove the old connector by cutting the wires at apoint close to the connector.Important : Do not re-use a connector (discard it).Fig.1-1-3b) Strip about 15 mm of the insulation from the endsof the wires. If the wires are stranded, twist thestrands to avoid frayed conductors.Fig.1-1-4c) Align the lengths of the wires to be connected. In-sert the wires fully into the connector.Fig.1-1-5d) As shown in Fig.1-1-6, use the crimping tool tocrimp the metal sleeve at the center position. Besure to crimp fully to the complete closure of thetool.Fig.1-1-6e) Check the four points noted in Fig.1-1-7.Fig.1-1-7(13) Battery replacement caution notice.CAUTION RISK OF EXPLOSION IF BATTERY IS RE-PLACED BY AN INCORRECTIVE TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THEINSTRUCTIONS.Power cordcut close to connector15 mmConnectorMetal sleeve1.252.05.5Crimping toolNot easily pulled freeCrimped at approx. centerof metal sleeveConductors extendedWire insulation recessedmore than 4 mm1-4 (No.YD125)1.1.2 Safety Check after ServicingExamine the area surrounding the repaired location for damageor deterioration. Observe that screws, parts and wires have beenreturned to original positions, Afterwards, perform the followingtests and confirm the specified values in order to verify compli-ance with safety standards.(1) Insulation resistance testConfirm the specified insulation resistance or greater be-tween power cord plug prongs and externally exposedparts of the set (RF terminals, antenna terminals, video andaudio input and output terminals, microphone jacks, ear-phone jacks, etc.).See table 1 below.(2) Dielectric strength testConfirm specified dielectric strength or greater betweenpower cord plug prongs and exposed accessible parts ofthe set (RF terminals, antenna terminals, video and audioinput and output terminals, microphone jacks, earphonejacks, etc.). See Fig.1-1-11 below.(3) Clearance distanceWhen replacing primary circuit components, confirm spec-ified clearance distance (d), (d') between soldered termi-nals, and between terminals and surrounding metallicparts. See Fig.1-1-11 below.Fig.1-1-8(4) Leakage current testConfirm specified or lower leakage current between earthground/power cord plug prongs and externally exposed ac-cessible parts (RF terminals, antenna terminals, video andaudio input and output terminals, microphone jacks, ear-phone jacks, etc.).Measuring Method : (Power ON) Insert load Z betweenearth ground/power cord plug prongs and externally ex-posed accessible parts. Use an AC voltmeter to measureacross both terminals of load Z. See Fig.1-1-9 and follow-ing Fig.1-1-12.Fig.1-1-9(5) Grounding (Class 1 model only)Confirm specified or lower grounding impedance betweenearth pin in AC inlet and externally exposed accessibleparts (Video in, Video out, Audio in, Audio out or Fixingscrew etc.).Measuring Method:Connect milli ohm meter between earth pin in AC inlet andexposed accessible parts. See Fig.1-1-10 and groundingspecifications.Fig.1-1-10Fig.1-1-11Fig.1-1-12NOTE :These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.ChassisPower cord primary wired'dabcVAExternallyexposedaccessible partZExposed accessible partGrounding SpecificationsAC inletRegionUSA & CanadaEurope & AustraliaGrounding Impedance (Z)Z 0.1 ohmZ 0.5 ohmEarth pinMIlli ohm meterAC Line Voltage RegionJapanEurope & AustraliaR 1 M /500 V DCUSA & Canada 1 M R 12 M /500 V DCR 10 M /500 V DCInsulation Resistance (R) Dielectric Strength Clearance Distance (d), (d')100 V100 to 240 V110 to 130 V110 to 130 V200 to 240 VAC 1 kV 1 minuteAC 1.5 kV 1 minuteAC 1 kV 1 minute(Class )(Class )AC 3 kV 1 minuteAC 1.5 kV 1 minuted, d' 3 mmd, d' 4 mmd, d' 3.2 mmd' 8 mm (Power cord)d' 6 mm (Primary wire)d 4 mmAC Line Voltage RegionJapanEurope & AustraliaUSA & CanadaLoad Z Leakage Current (i) a, b, c100 V110 to 130 V110 to 130 V220 to 240 Vi 1 mA rmsi 0.5 mA rmsi 0.7 mA peaki 2 mA dci 0.7 mA peaki 2 mA dcExposed accessible partsExposed accessible partsAntenna earth terminalsOther terminals11.52500.15(No.YD125)1-5SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.SECTION 3DISASSEMBLYBefore disassembly, be sure to turn OFF the power and unplugthe power cord. 3.1 Removing the top cover (See Figure 1) (1) Remove the four screws A attaching the top cover fromboth sides. (2) Remove the three screws B attaching the top cover fromthe back. (3) Remove the top cover by sliding it backward. Fig.13.2 Removing the front panel assembly (See Figure 2 andFigure 3) Remove the top cover. (1) Remove the nine tabs on the front panel assembly, andthen remove the front panel assembly. Fig.2Fig.33.3 Removing the HD