Fostex-PH100-pad-sm维修电路原理图.pdf

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1、Service Manual Model PH-100 HEADPHONE AMP DISTRIBUTOR RadioFans.CN 收音机爱 好者资料库 SAFETY INSTRUCTIONS Read instructions - All the safety and operating instruc- tions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future

2、 reference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instructions - All operating and use instructions should be followed. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kit

3、chen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by the manufac- turer. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven

4、 surfaces may cause the appliance and cart combination to over- turn. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation - The appliance should be situated so that its location or position does not interfere with its p

5、roper ven- tilation. For example, the appliance should not be situ- ated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built- in installa- tion, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. Heat - T

6、he appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on

7、 the appliance. Grounding or Polarization - The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or aga

8、inst them, paying particular 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 should be unplugged from the o

9、utlet when left unused for a long period of time. Object and Liquid Entry - Care should be taken so that objects 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.

10、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 qualified service personnel. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: T

11、O REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER- SERVICEABLE PARTS INSIDE. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. POUR VITER LES CHOCS LECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRE- SPONDANTE DE LA PR

12、ISE ET POUSSER JUSQU AU FOND. CAUTION: ATTENTION: The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte- nance (servicing) instructions in the litera- ture accompanying the appliance. The lightening flash with arrowhead s

13、ymbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of sufficient magni- tude to constitute a risk of electric shock to persons. “WARNING” “TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO N

14、OT 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; or Objects have fallen, or liquid has been spilled into the appliance; or The appliance has been exposed to rain; or The appliance does not appear to operate normally or exhib

15、its a marked changed in performance; or The appliance has been dropped, or the enclosure damaged. 9. 10. 11. 12. 13. 14. 15. 16. 17. RadioFans.CN 收音机爱 好者资料库 3 PH-100 Service Manual Parts marked with this sign are safety critical components. They must always be replaced with identical components. Ref

16、er to the Fostex Parts List and ensure exact replacement. CAUTION TABLE OF CONTENTS NOTES *Exploded view, PCB assembly, parts list and circuit diagrams are given in this manual to assist the service technician in maintaining the Model PH-100. *The following accessories are supplied with PH-100 as th

17、e standard accessories. PH-100 owners manual, MULTI: 8288495000 *Following is the packing material for the Model PH-100. Carton, inner, PH-100: 8528031000 Packing, side, A, PH-100: 8528029000 Packing, side, B, PH-100: 8528030000 1. 2. 3. 4. 4 5 6 14 SPECIFICATIONS . . . . . . . . . . . . . . . . . .

18、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . CIRCUIT & BLOCK DIAGRAMS . . . . .

19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RadioFans.CN 收音机爱 好者资料库 4 PH-100 Service Manual 1. SPECIFICATIONS SPECIFICATION UNIT0 dBV = 1 V r.m.s., 0 dBu = 0.775 V r.m.s. INPUT INPUT L/R ConnectorXLR balanced, 6 mm balanced / unbalanced phone jack Input Level+ 4 dBu

20、(XLR), - 10 dBV Input Impedance20 k or more INPUT, AUX RTN L MONO / R, CH IN ConnectorRCA jack Input Level- 10 dBV Input Impedance20 k or more OUTPUT PHONES Connector6 mm stereo phone jack Maximum Output Level500 mW (32 ) Load Impedance8 32 CASCADE OUT L/R ConnectorRCA jack Output Level-10 dBV Load

21、Impedance10 k or more OUTPUT49 (H) x 484 (W) x 267 (D) mm WEIGHTAbout 4 kg POWER JPNAC 100 V 50 / 60 Hz USA /CND (UL)AC 120 V 60 Hz EUR (IEC CLASS I)AC 230 V 50 / 60 Hz UK (BS)AC 230 V 50 Hz POWER CONSUMPTION18 W STANDARD ENVIRONMENT Standard Temperature20 3 C Standard Humidity60 5 % ENVIRONMENT CON

22、DITION Characteristics Guaranteed Temperature+ 5 + 35 C Humidity30 % 65 % AC Voltage Deviation 5 % or less Operation Guaranteed Temperature- 5 + 45 C Humidity10 % 90 % AC Voltage Deviation 5 % or less PHONES MAXIMUM OUTPUT500 mW (at 32 load, 3 % distortion, -10 dBV / 1 kHz input) DISTORTION PHONES-

23、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 NOISE PHONES0.1 % or less (200 mW, 32 , 1 kHz) CASCADE OUT0.05 % or less (-10 dBV, 1 kHz) FREQUENCY RESPONSE PHONES30 Hz 20 kHz: 2 dB (200 mW, 32 ) CASCADE OUT30 Hz 20 kHz:

24、 1 dB CLICK NOISE- 20 dBVp-p or less (CASCADE OUT) Specifications and physical appearance are subject to change without notice for product improvement. RadioFans.CN 收音机爱 好者资料库 5 PH-100 Service Manual 2. CONTROLS, INDICATORS & CONNECTORS 1.PHONES level controls (1 through 10) 2.PEAK indicator 3.AUX I

25、N level control 4.POWER switch / indicator 5.INPUT level control 6.INPUT (ST, MONO) select switch 7.PHONES jacks (1 through 10) 100 HEADPHONE AMP DISTRIBUTOR POWER 100 PH-100 5 5 AUX IN INPUT MONOST 100 5 100 5 100 5 100 5 100 5 100 5 100 5 100 5 100 5 100 5 PEAK 10987654321 PHONES CAL 1234 567 +4dB

26、u 543 21 109876 PHONES (PRIORITY TO FRONT PHONES OUTPUT) AC IN CASCADE OUT (-10dBV) L 109 876R L/MONO INPUT (-10dBV) CHANNEL IN (-10dBV)INPUT LINPUT R -10dBV -10dBV HOT R L/MONO AUX IN (-10dBV) COLD GND XLRPHONE 2 3 1 T R S 21 4 3 5 R +4dBu 21345 67 8 1.AC IN connector 2.PHONES jacks (1 through 10)

27、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) RadioFans.CN 收音机爱 好者资料库 6 PH-100

28、 Service Manual PH-100 OVERALL EXPLODED VIEW & PARTS LIST 3. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST Ref. No.Part No.Description 18507 0020 00Foot, PH-100 28274 4090 00PCB assy, Phones Out, PH-100 38274 4100 00PCB assy, Power LED, PH-100 48274 4110 00PCB assy, Power, PH-100 58274 4120 00PCB assy, P

29、ower SW, PH-100 68218 2630 00Sticker, GND 78276 8010 00Cord, power, UL/CSA, VM0033-0089 8276 8021 00Cord, power, CEE, 0309B-0310B 8276 9170 00Cord, power, BS 3C KP610-KS31A 8276 8000 00Cord, power, DM, VM1292-1298 88526 0190 00Knob, push, power, PH-100 98526 0130 00Knob, volume, VF16EX 108520 0330 0

30、0Angle, rack mount, DE-10 118520 0370 00Bracket, AC-IN, NF-01A 128520 0440 00Bracket, volume, PY008A0 138520 0450 00Panel, front, print, PH-100 148520 0460 00Panel, rear, print, PH-100 158520 0470 00Chassis, PH-100 168516 0370 00Sheet, insulation, PH-100 17N/A 18N/A 198274 4130 00PCB assy, HP VOL 20

31、8274 4080 00PCB assy, Main, PH-100 218542 0040 00Transformer, power, 100V/120V, PH-100 8542 0050 00Transformer, power, 230V, PH-100, 228507 0030 00Spacer, PWB, MSPLS-10U, PH-100 238520 0480 00Case, top, print, PH-100 248516 0380 00Sheet, insulation, B, PH-100 RadioFans.CN 收音机爱 好者资料库 7 PH-100 Service

32、 Manual C C E E D A D B A B 19 13 9 20 12 10 9 10 15 1 16 21 11 4 7 14 2 23 B3 x 8BZn BBT3 x 12BZn B3 x 8BZn BBT3 x 6BZn BBT3 x 6BZn BBT3 x 8BZn BBT3 x 8BZn BBT3 x 6BZn BBT3 x 6CZn BBT3 x 6BZn 22 BBT3 x 8BZn BBT3 x 6CZn B4 x 6BZn BBT3 x 6BZn B4 x 8 BZn BBT3 x 6BZn BBT4 x 6BZn NUT HEX M4- ZMC3 Nut (a

33、ttached to VOL) Washer (attached to VOL) BBT3 x 8BZn BBT3 x 8BZn 8 BBT3 x 6BZn 6 24 3 5 BBT3 x 8 BZn BBT3 x 6BZn RadioFans.CN 收音机爱 好者资料库 8 PH-100 Service Manual PH-100 PCB ASSEMBLIES C16 FL05 C17 FL07 FL06 FL08 RJACK RCONN R22R21 R8R6 C19 C20 R42 R26 C18 C4 R4 R25 85 14 C5 C8 C67 FL02 C6C7 J80 R40 J

34、81 J82 J84 FL01 IC1 R7 C66 R34 J83 C50 J87 C2 J85 J86 J89 J88 R3 IC36 R32 C54 8 5 1 4 R1C3R2R14R5 C13 R16C38 J92 IC2 R35R33C52 J96 C55 R19R18C14 J97 C15 J95J93 J94 J99C9 FL03 C56 C58 J101J100 C27 LJACK R38 C26 R37 85 14 LCONN C16 FL05 C17 FL07 FL06 FL08 RJACK RCONN R22R21 R8R6 C19 C20 R42 R26 C18 C4

35、 R4 R25 85 14 C5 C8 C67 FL02 C6C7 J80 R40 J81 J82 J84 FL01 IC1 R7 C66 R34 J83 C50 J87 C2 J85 J86 J89 J88 R3 IC36 R32 C54 8 5 1 4 R1C3R2R14R5 C13 R16C38 J92 IC2 R35R33C52 J96 C55 R19R18C14 J97 C15 J95J93 J94 J99C9 FL03 C56 C58 J101J100 C27 LJACK R38 C26 R37 85 14 LCONN RCAJ1RCAJ1 FL10FL24FL09FL11 R51

36、 FL04 C36 R36 FL23 R17 FL16 R61 FL10FL24FL09FL11 R51 FL04 C36 R36 FL23 R17 FL16 R61 RCAJ2RCAJ2 C45C35C37 FL17FL12FL13 R55R63R53 FL18 R65 C45C35C37 FL17FL12FL13 R55R63R53 FL18 R65 RCAJ3RCAJ3 C47C49 C39C41 CN003 FL19FL14 R57 R67 CN004 C51C43 FL15 R59 FL20 R69 C53 C40 Q2 FL22FL21 E Q1 E C47C49 C39C41 C

37、N003 FL19FL14 R57 R67 CN004 C51C43 FL15 R59 FL20 R69 C53 C40 Q2 FL22FL21 E Q1 E RCAJ4RCAJ4 R73R71R74 J102 C42 C70 R72 FIL5AFIL5B 10 CH5REAR 1 BC007 FIL4AFIL4BFIL3AFIL3BFIL2AFIL2BFIL1AFIL1B CH4REARCH3REARCH2REARCH1REAR 12 CN009 1 2 BC009 Q6 J107 R82 R78J106R70 R76 D10C64R81Q5D3 D5 C65 E E C60 J105 D4

38、 D9R80Z1 Q4 Q3 E E D1 C63 C62 + C61 J103 R83 - R75 J104 BC1 15 16 13 13 13 C57J98C59 J90 CN002 CN007 J91 10 1 J54 BC005 J52 J51 J55 J53 C128 R191 J57 R204 J58 J56 C202 J59 10 1 1 R203 C204 C146 J62 J63 C137 R216 J35 R228 J64 J65 4 R215 J32 C206 J66 C208 C203 J61 J36 C207 C205IC22 R293 IC24 J31 J30 J

39、60 J33 5 8 14 58 14 58 14 58 14 58 14 5 8 C139 C133J34 R222 IC26 C147 R295 C151 R221 C138 C142 J109 J10 J110 R234 J11 C143 C129 R210 IC23 J9 R209 J8 R294 R217 R296 R223 IC25 C148 J6 J7 IC27 C130 R211 R205 C134 R193 R199 R292 R194 FL4A C123 C122 C125 R195 FL3B R196 R202 C127 C126 R201 IC21 C135 C138

40、R213 R214 R207 R206 FL4B R212 R208 C131 C132 C145 R226 R225 C144 R220 C140 R218 C141 R224 FL5A R219 FL5B R200 14 58 C201 C120 C121 J27 J26 R192R179 C110C200 C119 1 4 58 14 58 1 4 58 R186 IC18 R289 J28 C115 R180 R198 C111 R185 C116 J5 J4 IC20 R187 R290 C124 IC19 R181 R182 J29 R291 C118 C113 C114 R189

41、 R197 R188 J1 R173 C106 C107 J3 J2 R288 R174 C112 R177 R175 IC17 R169 R178 C108 R170 C109 R172 R171 C104 C105 R183 R190 C117 FL1A R176 R184 FL3AFL2AFL1B CH2FRNTCH1FRNT FL2B CH3FRNT 1 4 58 14 58 R168 J25 J23 R167 IC16 J24 C103 CH5FRNT C102 R287 FL6A CH4FRNT C152 C154 R238 R237 C153 R229 R298 R235 C14

42、9 R230 C150 R236 R232 FL6B R231 C161 C163 R249 R250 C162 IC29 CH6FRNT FL7A R241 R300 R247 C158 R242 C159 R248 R244 FL7B R243 C166 C172 R261 R262 C171 IC31 CH7FRNT FL8A C170 R253 R302 R259 C167 R254 C168 R260 R256 FL8B R255 C181 R273 R274 C180 IC33 CH8FRNT FL9A C179 R265 R304 R271 C176 R266 C177 R272

43、 R268 FL9B R267 C190 R285 R286 C189 IC35 CH9FRNT FL10A C184 C188 R277 R306 R283 R284 R278 C185 R280 FL10B R279 C186 J22 C34 J21 R85 C31 C11 R46 C33 C30 R43 C29R44 VR1 CH10FRNT R47 C32C28 IC4 14 58 R50 C209 R297 J39 R233 J38 J37 R227 J12 J13 14 58 1 4 58 14 58 1 4 5 8 14 58 14 5 8 1 4 5 8 14 58 J14 J

44、15 J42 R245 C160 R246 IC28 C157C156 R299 C211 C165 R258 C210 J40 J41 J43 J44 C212 IC30 C175C213 R252 R251 C169 J45 J16 R257 C164 R301 J18 J19J17 R264 R270 C178 IC32 C174 C214 J46 R263 J47 C215 J48 R303 R269 R276 R275 IC34 C183 C187 R282 R281 R305 J49 C217 J50 J20 R79 LED1 C182 C216 10 J77 1 BC008 J7

45、9J78 J108 J74 J75J76 C173 10 J71 CN006 1 J72 J73 J69 R240 C155 R239 J67 J68 J70 1 10 C199C198 C101 SW HS R73R71R74 J102 C42 C70 R72 FIL5AFIL5B 10 CH5REAR 1 BC007 FIL4AFIL4BFIL3AFIL3BFIL2AFIL2BFIL1AFIL1B CH4REARCH3REARCH2REARCH1REAR 12 CN009 1 2 BC009 Q6 J107 R82 R78J106R70 R76 D10C64R81Q5D3 D5 C65 E

46、 E C60 J105 D4 D9R80Z1 Q4 Q3 E E D1 C63 C62 + C61 J103 R83 - R75 J104 BC1 15 16 13 13 13 C57J98C59 J90 CN002 CN007 J91 10 1 J54 BC005 J52 J51 J55 J53 C128 R191 J57 R204 J58 J56 C202 J59 10 1 1 R203 C204 C146 J62 J63 C137 R216 J35 R228 J64 J65 4 R215 J32 C206 J66 C208 C203 J61 J36 C207 C205IC22 R293

47、IC24 J31 J30 J60 J33 5 8 14 58 14 58 14 58 14 58 14 5 8 C139 C133J34 R222 IC26 C147 R295 C151 R221 C138 C142 J109 J10 J110 R234 J11 C143 C129 R210 IC23 J9 R209 J8 R294 R217 R296 R223 IC25 C148 J6 J7 IC27 C130 R211 R205 C134 R193 R199 R292 R194 FL4A C123 C122 C125 R195 FL3B R196 R202 C127 C126 R201 I

48、C21 C135 C138 R213 R214 R207 R206 FL4B R212 R208 C131 C132 C145 R226 R225 C144 R220 C140 R218 C141 R224 FL5A R219 FL5B R200 14 58 C201 C120 C121 J27 J26 R192R179 C110C200 C119 1 4 58 14 58 1 4 58 R186 IC18 R289 J28 C115 R180 R198 C111 R185 C116 J5 J4 IC20 R187 R290 C124 IC19 R181 R182 J29 R291 C118

49、C113 C114 R189 R197 R188 J1 R173 C106 C107 J3 J2 R288 R174 C112 R177 R175 IC17 R169 R178 C108 R170 C109 R172 R171 C104 C105 R183 R190 C117 FL1A R176 R184 FL3AFL2AFL1B CH2FRNTCH1FRNT FL2B CH3FRNT 1 4 58 14 58 R168 J25 J23 R167 IC16 J24 C103 CH5FRNT C102 R287 FL6A CH4FRNT C152 C154 R238 R237 C153 R229 R298 R235 C149 R230 C150 R236 R232 FL6B R231 C161 C163 R249 R250 C162 IC29 CH6FRNT FL7A R241 R300 R247 C158 R242 C159 R248 R244 FL7B R243 C166 C172 R261 R262 C171 IC31 CH7FRNT FL8A C170 R253 R302 R259 C167 R254 C168 R260 R256 FL8B R255 C181 R273 R274 C180 IC33 CH8FRNT