Fostex-PH100-pad-sm维修电路原理图.pdf

Service ManualModelPH-100HEADPHONE AMP DISTRIBUTORRadioFans.CN 收音机爱 好者资料库SAFETY INSTRUCTIONSRead instructions - All the safety and operating instruc-tions should be read before the appliance is operated.Retain instructions - The safety and operating instructionsshould be retained for future reference.Heed warnings - All warnings on the appliance and in theoperating instructions should be adhered to.Follow instructions - All operating and use instructionsshould be followed.Water and Moisture - The appliance should not be usednear water - for example, near a bathtub, washbowl,kitchen sink, laundry tub, in a wet basement, or near aswimming pool, and the like.Carts and Stands - The appliance should be used onlywith a cart or stand that is recommended by the manufac-turer.An appliance and cart combination should be moved withcare. Quick stops, excessive force, and uneven surfacesmay cause the appliance and cart combination to over-turn.Wall or Ceiling Mounting - The appliance should bemounted to a wall or ceiling only as recommended by themanufacturer.Ventilation - The appliance should be situated so that itslocation or position does not interfere with its proper ven-tilation. For example, the appliance should not be situ-ated on a bed, sofa, rug, or similar surface that may blockthe ventilation openings; or, placed in a built- in installa-tion, such as a bookcase or cabinet that may impede theflow of air through the ventilation openings.Heat - The appliance should be situated away from heatsources such as radiators, heat registers, stoves, or otherappliances (including amplifiers) that produce heat.Power Sources - The appliance should be connected to apower supply only of the type described in the operatinginstructions or as marked on the appliance.Grounding or Polarization - The precautions that shouldbe taken so that the grounding or polarization means ofan appliance is not defeated.Power Cord Protection - Power supply cords should berouted so that they are not likely to be walked on orpinched by items placed upon or against them, payingparticular attention to cords at plugs, convenience recep-tacles, and the point where they exit from the appliance.Cleaning - The appliance should be cleaned only as rec-ommended by the manufacturer.Nonuse Periods - The power cord of the appliance shouldbe unplugged from the outlet when left unused for a longperiod of time.Object and Liquid Entry - Care should be taken so thatobjects do not fall and liquids are not spilled into the en-closure through openings.Damage requiring Service - The appliance should be ser-viced by qualified service personnel when:A.B.C.D.E.Servicing - The user should not attempt to service the ap-pliance beyond that described in the operating instruc-tions. All other servicing should be referred to qualifiedservice personnel.REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENCAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMOVE COVER (OR BACK).NO USER- SERVICEABLE PARTS INSIDE.TO PREVENT ELECTRIC SHOCK, MATCHWIDE BLADE OF PLUG TO WIDE SLOT,FULLY INSERT.POUR VITER LES CHOCS LECTRIQUES,INTRODUIRE LA LAME LA PLUS LARGE DELA FICHE DANS LA BORNE CORRE-SPONDANTE DE LA PRISE ET POUSSERJUSQU AU FOND.CAUTION:ATTENTION:The exclamation point within an equilateraltriangle is intended to alert the user to thepresence of important operating and mainte-nance (servicing) instructions in the litera-ture accompanying the appliance.The lightening flash with arrowhead symbol,within an equilateral triangle, is intended toalert the user to the presence of uninsulated“dangerous voltage” within the productsenclosure that may be of sufficient magni-tude to constitute a risk of electric shock topersons.“WARNING”“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOIS-TURE.”1.2.3.4.5.6.7.8.The power supply cord or the plug has been damaged;orObjects have fallen, or liquid has been spilled into theappliance; orThe appliance has been exposed to rain; orThe appliance does not appear to operate normally orexhibits a marked changed in performance; orThe appliance has been dropped, or the enclosuredamaged.9.10.11.12.13.14.15.16.17.RadioFans.CN 收音机爱 好者资料库3PH-100 Service ManualParts marked with this sign are safety critical components. They must always be replaced with identicalcomponents. Refer to the Fostex Parts List and ensure exact replacement.CAUTIONTABLE OF CONTENTSNOTES*Exploded view, PCB assembly, parts list and circuit diagrams are given in this manual to assist the servicetechnician in maintaining the Model PH-100.*The following accessories are supplied with PH-100 as the standard accessories.PH-100 owners manual, MULTI: 8288495000*Following is the packing material for the Model PH-100.Carton, inner, PH-100: 8528031000Packing, side, A, PH-100: 8528029000Packing, side, B, PH-100: 85280300001.2.3.4.45614SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . .CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4PH-100 Service Manual1. SPECIFICATIONSSPECIFICATION UNIT0 dBV = 1 V r.m.s., 0 dBu = 0.775 V r.m.s.INPUTINPUT L/RConnectorXLR balanced, 6 mm balanced / unbalanced phone jackInput Level+ 4 dBu (XLR), - 10 dBVInput Impedance20 k or moreINPUT, AUX RTN L MONO / R, CH INConnectorRCA jackInput Level- 10 dBVInput Impedance20 k or moreOUTPUTPHONESConnector6 mm stereo phone jackMaximum Output Level500 mW (32 )Load Impedance8 32 CASCADE OUT L/RConnectorRCA jackOutput Level-10 dBVLoad Impedance10 k or moreOUTPUT49 (H) x 484 (W) x 267 (D) mmWEIGHTAbout 4 kgPOWERJPNAC 100 V 50 / 60 HzUSA /CND (UL)AC 120 V 60 HzEUR (IEC CLASS I)AC 230 V 50 / 60 HzUK (BS)AC 230 V 50 HzPOWER CONSUMPTION18 WSTANDARD ENVIRONMENTStandard Temperature20 3 CStandard Humidity60 5 %ENVIRONMENT CONDITIONCharacteristics GuaranteedTemperature+ 5 + 35 CHumidity30 % 65 %AC Voltage Deviation 5 % or lessOperation GuaranteedTemperature- 5 + 45 CHumidity10 % 90 %AC Voltage Deviation 5 % or lessPHONES MAXIMUM OUTPUT500 mW (at 32 load, 3 % distortion, -10 dBV / 1 kHz input)DISTORTIONPHONES- 65 dBV or less (DIN AUDIO), - 80 dBV or less (IHF A)CASCADE OUT- 85 dBV or less (DIN AUDIO), - 90 dBV or less (IHF A)RESIDUAL NOISEPHONES0.1 % or less (200 mW, 32 , 1 kHz)CASCADE OUT0.05 % or less (-10 dBV, 1 kHz)FREQUENCY RESPONSEPHONES30 Hz 20 kHz: 2 dB (200 mW, 32 )CASCADE OUT30 Hz 20 kHz: 1 dBCLICK NOISE- 20 dBVp-p or less (CASCADE OUT)Specifications and physical appearance are subject to change without notice for product improvement.5PH-100 Service Manual2. CONTROLS, INDICATORS & CONNECTORS1.PHONES level controls (1 through 10)2.PEAK indicator3.AUX IN level control4.POWER switch / indicator5.INPUT level control6.INPUT (ST, MONO) select switch7.PHONES jacks (1 through 10)100HEADPHONE AMP DISTRIBUTORPOWER100PH-10055AUX ININPUTMONOST1005100510051005100510051005100510051005PEAK10987654321PHONESCAL1234567+4dBu54321109876PHONES (PRIORITY TO FRONT PHONES OUTPUT)AC INCASCADEOUT (-10dBV)L109876RL/MONOINPUT(-10dBV)CHANNEL IN (-10dBV)INPUT LINPUT R-10dBV-10dBVHOTRL/MONOAUX IN(-10dBV)COLDGNDXLRPHONE231TRS21435R+4dBu21345 6781.AC IN connector2.PHONES jacks (1 through 10)3.CASCADE OUT jacks (L, R) (RCA: -10 dBV)4.CHANNEL IN jacks (1 through 10) (RCA: -10 dBV)5.AUX IN jacks (L/MONO, R) (RCA: -10 dBV)6.INPUT (- 10dBV) jacks (RCA: -10 dBV)7.INPUT (+4dBu) connectors (L, R) (XLR: +4 dBV)8.INPUT (- 10dBV) jacks (L, R) (PHONE: -10 dBV)6PH-100 Service Manual PH-100 OVERALL EXPLODED VIEW & PARTS LIST3. EXPLODED VIEW, PCB ASSEMBLY & PARTS LISTRef. No.Part No.Description18507 0020 00Foot, PH-10028274 4090 00PCB assy, Phones Out, PH-10038274 4100 00PCB assy, Power LED, PH-10048274 4110 00PCB assy, Power, PH-10058274 4120 00PCB assy, Power SW, PH-10068218 2630 00Sticker, GND78276 8010 00Cord, power, UL/CSA,VM0033-00898276 8021 00Cord, power, CEE, 0309B-0310B8276 9170 00Cord, power, BS 3C KP610-KS31A8276 8000 00Cord, power, DM, VM1292-129888526 0190 00Knob, push, power, PH-10098526 0130 00Knob, volume, VF16EX108520 0330 00Angle, rack mount, DE-10118520 0370 00Bracket, AC-IN, NF-01A128520 0440 00Bracket, volume, PY008A0138520 0450 00Panel, front, print, PH-100148520 0460 00Panel, rear, print, PH-100158520 0470 00Chassis, PH-100168516 0370 00Sheet, insulation, PH-10017N/A18N/A198274 4130 00PCB assy, HP VOL208274 4080 00PCB assy, Main, PH-100218542 0040 00Transformer, power, 100V/120V,PH-1008542 0050 00Transformer, power, 230V, PH-100,228507 0030 00Spacer, PWB, MSPLS-10U, PH-100238520 0480 00Case, top, print, PH-100248516 0380 00Sheet, insulation, B, PH-1007PH-100 Service ManualCCEEDADBAB191392012109101511621114714223B3 x 8BZnBBT3 x 12BZnB3 x 8BZnBBT3 x 6BZnBBT3 x 6BZnBBT3 x 8BZnBBT3 x 8BZnBBT3 x 6BZnBBT3 x 6CZnBBT3 x 6BZn22BBT3 x 8BZnBBT3 x 6CZnB4 x 6BZnBBT3 x 6BZnB4 x 8 BZnBBT3 x 6BZnBBT4 x 6BZnNUT HEX M4- ZMC3Nut (attached to VOL)Washer(attached to VOL)BBT3 x 8BZnBBT3 x 8BZn8BBT3 x 6BZn62435BBT3 x 8BZnBBT3 x 6BZn8PH-100 Service Manual PH-100 PCB ASSEMBLIESC16FL05C17FL07FL06FL08RJACKRCONNR22R21R8R6C19C20 R42R26C18C4R4R258514C5C8C67FL02C6C7J80R40J81J82J84FL01IC1R7C66R34J83C50J87C2J85J86J89J88R3IC36R32C548514R1C3R2R14R5C13R16C38J92IC2R35R33C52J96C55R19R18C14J97C15J95J93 J94J99C9FL03C56 C58J101J100C27LJACKR38C26R378514LCONNC16FL05C17FL07FL06FL08RJACKRCONNR22R21R8R6C19C20 R42R26C18C4R4R258514C5C8C67FL02C6C7J80R40J81J82J84FL01IC1R7C66R34J83C50J87C2J85J86J89J88R3IC36R32C548514R1C3R2R14R5C13R16C38J92IC2R35R33C52J96C55R19R18C14J97C15J95J93 J94J99C9FL03C56 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