Fostex-PH100-pad-sm(1)维修电路原理图.pdf

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1、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 referenc

2、e.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, laund

3、ry 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

4、 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 examp

5、le, 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 awa

6、y 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

7、 - 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

8、 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.Obje

9、ct 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-

10、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 USE

11、R- 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 equ

12、ilateraltriangle 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 unin

13、sulated“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 ha

14、s 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.

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

16、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-1

17、00: 8528031000Packing, side, A, PH-100: 8528029000Packing, side, B, PH-100: 85280300001.2.3.4.45614SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . . . . . . . . . . .

18、 . . . . . . . . . .EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . .CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4PH-100 Service Manual1. SPECIFICATIONSSPECIFICATION UNIT0 dBV = 1 V r.m.s., 0

19、 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 jackMaximu

20、m 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 CONSUMPTIO

21、N18 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 OUTP

22、UT500 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

23、 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 control

24、s (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+4dBu5

25、4321109876PHONES (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.

26、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,

27、 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,VM0033-0

28、0898276 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

29、, 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 00Tran

30、sformer, 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 6BZn

31、BBT3 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 ASSEMBLIESC16FL05C17FL07FL06FL08RJACKRCONNR22R2

32、1R8R6C19C20 R42R26C18C4R4R258514C5C8C67FL02C6C7J80R40J81J82J84FL01IC1R7C66R34J83C50J87C2J85J86J89J88R3IC36R32C548514R1C3R2R14R5C13R16C38J92IC2R35R33C52J96C55R19R18C14J97C15J95J93 J94J99C9FL03C56 C58J101J100C27LJACKR38C26R378514LCONNC16FL05C17FL07FL06FL08RJACKRCONNR22R21R8R6C19C20 R42R26C18C4R4R25851

33、4C5C8C67FL02C6C7J80R40J81J82J84FL01IC1R7C66R34J83C50J87C2J85J86J89J88R3IC36R32C548514R1C3R2R14R5C13R16C38J92IC2R35R33C52J96C55R19R18C14J97C15J95J93 J94J99C9FL03C56 C58J101J100C27LJACKR38C26R378514LCONNRCAJ1RCAJ1FL10FL24FL09FL11R51FL04C36R36FL23R17FL16R61FL10FL24FL09FL11R51FL04C36R36FL23R17FL16R61RCA

34、J2RCAJ2C45C35C37FL17FL12FL13R55R63R53FL18R65C45C35C37FL17FL12FL13R55R63R53FL18R65RCAJ3RCAJ3C47C49C39C41CN003FL19FL14R57R67CN004C51C43FL15R59FL20R69C53C40Q2FL22FL21EQ1EC47C49C39C41CN003FL19FL14R57R67CN004C51C43FL15R59FL20R69C53C40Q2FL22FL21EQ1ERCAJ4RCAJ4R73R71R74J102C42C70R72FIL5AFIL5B10CH5REAR1BC007

35、FIL4AFIL4BFIL3AFIL3BFIL2AFIL2BFIL1AFIL1BCH4REARCH3REARCH2REARCH1REAR12CN00912BC009Q6J107R82R78J106R70 R76D10C64R81Q5D3D5C65EEC60J105D4D9R80Z1Q4Q3EED1C63C62+C61J103R83-R75J104BC11516131313C57J98C59J90CN002CN007J91101J54BC005J52J51J55J53C128R191J57R204J58J56C202J591011R203C204C146J62J63C137R216J35R228

36、J64 J654R215J32C206J66C208C203J61J36C207C205IC22R293IC24J31J30J60J335814581458145814581458C139C133J34R222IC26C147R295C151R221C138C142J109J10J110R234J11C143C129R210IC23J9R209J8R294R217R296R223IC25C148J6J7IC27C130R211R205C134R193R199R292R194FL4AC123C122C125R195FL3BR196R202C127C126R201IC21C135C138R213R

37、214R207R206FL4BR212R208C131C132C145R226R225C144R220C140R218C141R224FL5AR219FL5BR2001458C201C120C121J27J26R192R179C110C200C119145814581458R186IC18R289J28C115R180R198C111R185C116J5J4IC20R187R290C124IC19R181R182J29R291C118C113C114R189R197R188J1R173C106C107J3J2R288R174C112R177R175IC17R169R178C108R170C10

38、9R172R171C104C105R183R190C117FL1AR176R184FL3AFL2AFL1BCH2FRNTCH1FRNTFL2BCH3FRNT14581458R168J25J23R167IC16J24C103CH5FRNTC102R287FL6ACH4FRNTC152C154R238R237C153R229R298R235C149R230C150R236R232FL6BR231C161C163R249R250C162IC29CH6FRNTFL7AR241R300R247C158R242C159R248R244FL7BR243C166C172R261R262C171IC31CH7F

39、RNTFL8AC170R253R302R259C167R254C168R260R256FL8BR255C181R273R274C180IC33CH8FRNTFL9AC179R265R304R271C176R266C177R272R268FL9BR267C190R285R286C189IC35CH9FRNTFL10AC184C188R277R306R283R284R278C185R280FL10BR279C186J22C34J21R85C31C11R46C33C30R43C29R44VR1CH10FRNTR47C32C28IC41458R50C209R297J39R233J38J37R227J1

40、2J1314581458145814581458145814581458J14J15J42R245C160R246IC28C157C156R299C211C165R258C210J40J41J43J44C212IC30C175C213R252R251C169J45J16R257C164R301J18J19J17R264R270C178IC32C174C214J46R263J47C215J48R303R269R276R275IC34C183C187R282R281R305J49C217J50J20R79LED1C182C21610J771BC008J79J78J108J74J75J76C1731

41、0J71CN0061J72J73J69R240C155R239J67J68J70110C199C198C101SWHSR73R71R74J102C42C70R72FIL5AFIL5B10CH5REAR1BC007FIL4AFIL4BFIL3AFIL3BFIL2AFIL2BFIL1AFIL1BCH4REARCH3REARCH2REARCH1REAR12CN00912BC009Q6J107R82R78J106R70 R76D10C64R81Q5D3D5C65EEC60J105D4D9R80Z1Q4Q3EED1C63C62+C61J103R83-R75J104BC11516131313C57J98C

42、59J90CN002CN007J91101J54BC005J52J51J55J53C128R191J57R204J58J56C202J591011R203C204C146J62J63C137R216J35R228J64 J654R215J32C206J66C208C203J61J36C207C205IC22R293IC24J31J30J60J335814581458145814581458C139C133J34R222IC26C147R295C151R221C138C142J109J10J110R234J11C143C129R210IC23J9R209J8R294R217R296R223IC2

43、5C148J6J7IC27C130R211R205C134R193R199R292R194FL4AC123C122C125R195FL3BR196R202C127C126R201IC21C135C138R213R214R207R206FL4BR212R208C131C132C145R226R225C144R220C140R218C141R224FL5AR219FL5BR2001458C201C120C121J27J26R192R179C110C200C119145814581458R186IC18R289J28C115R180R198C111R185C116J5J4IC20R187R290C1

44、24IC19R181R182J29R291C118C113C114R189R197R188J1R173C106C107J3J2R288R174C112R177R175IC17R169R178C108R170C109R172R171C104C105R183R190C117FL1AR176R184FL3AFL2AFL1BCH2FRNTCH1FRNTFL2BCH3FRNT14581458R168J25J23R167IC16J24C103CH5FRNTC102R287FL6ACH4FRNTC152C154R238R237C153R229R298R235C149R230C150R236R232FL6BR

45、231C161C163R249R250C162IC29CH6FRNTFL7AR241R300R247C158R242C159R248R244FL7BR243C166C172R261R262C171IC31CH7FRNTFL8AC170R253R302R259C167R254C168R260R256FL8BR255C181R273R274C180IC33CH8FRNTFL9AC179R265R304R271C176R266C177R272R268FL9BR267C190R285R286C189IC35CH9FRNTFL10AC184C188R277R306R283R284R278C185R280

46、FL10BR279C186J22C34J21R85C31C11R46C33C30R43C29R44VR1CH10FRNTR47C32C28IC41458R50C209R297J39R233J38J37R227J12J1314581458145814581458145814581458J14J15J42R245C160R246IC28C157C156R299C211C165R258C210J40J41J43J44C212IC30C175C213R252R251C169J45J16R257C164R301J18J19J17R264R270C178IC32C174C214J46R263J47C215

47、J48R303R269R276R275IC34C183C187R282R281R305J49C217J50J20R79LED1C182C21610J771BC008J79J78J108J74J75J76C17310J71CN0061J72J73J69R240C155R239J67J68J70110C199C198C101SWHS Main / Phones Out / Power LED PCB9PH-100 Service ManualC25C25R91C72R88R87R99R100R92IC51845R90C71R101C76R102C73R93R94VR3JP76R89JP77C24R

48、95C75R98R109R107R106R96IC61845R110C74R97VR4C79C23R104C78R106R117R116R115R103IC71845R118C77R105VR5C82C22R111C81R114R125R124R123R112IC81845R126C80R113VR6C85C21R119C84R122R133R131R132R120IC91845R134C83R121VR7C88C191R127C87R130R141R140R139R128IC101845R142C86R129VR8C91C192R136C90R138R149R148R147R135IC111

49、845R150C89R137VR9C94C193R143C93R146 R157R156R155R144IC121845R158C92R145VR10C97C194R152C96R154 R165R164R163R151IC131845R166C95R153VR11C100C195R160C99R162C197C88R15R159R11C98R161VR12R13IC141845C69IC3R12PKLEDC10C12JP31R10JP91C196VR2JP951845JP93JP94JP92R23IC15C46R24D7D6R27R8R31C48R30R291845JP28JP29JP90J

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