User manual FOSTEX MN-50 SERVICE MANUAL

[. . . ] Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. Damage requiring Service - The appliance should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C. [. . . ] The appliance has been exposed to rain; or D. The appliance does not appear to operate normally or exhibits a marked changed in performance; or E. The appliance has been dropped, or the enclosure damaged. Servicing - The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel. 10. 11. 12. 6. 13. 14. 15. 7. 8. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn. 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 proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. 16. 17. 2 MN-12/04 TABLE OF CONTENTS 1. Description 1 2 3 4 8212600000 PANEL, FRONT, MN-12 8216598000 SHIELD, PLATE, MN12 8274180000 PCB Assy, METER, MN-12 8270727003 ADAPTOR, AD-12A, USA/CND 8270727006 ADAPTOR, AD-12A, EUR 8270727007 ADAPTOR, AD-12A, UK 8270727010 ADAPTOR, AD-12A, JPN 5 6 7 8 9 8274179000 PCB Assy, MAIN, MN-12 8226198004 ROTARY, KNOB, (D), GRY 8226198003 ROTARY, KNOB(C), GRN 8226198002 ROTARY, KNOB(B), YEL 8226198001 ROTARY, KNOB(A), RED 10 8226159001 KNOB, FADER, WHT 11 8226159002 KNOB, FADER, RED 12 8221269000 PLATE, BOTTOM, MN12 13 8207010700 RUBBER, FOOT 8 MN-12/04 MN-50 OVERALL EXPLODED VIEW & PARTS LIST No. Description 1 2 3 4 5 8221262000 KNOB, SW, WHT 8212599000 PANEL, FRONT, MN-50 8274182000 PCB Assy, SELECTOR, MN-50 8216599000 SHIELD, PLATE, MN-50 8270728003 ADAPTOR, AD-9A, USA/CND 8270728006 ADAPTOR, AD-9A, EUR 8270728007 ADAPTOR, AD-9A, UK 8270728010 ADAPTOR, AD-9A, JPN 6 7 8 9 8226198002 ROTARY, KNOB(B), Y 8226159001 KNOB, FADER, WHT 8274181000 PCB Assy, MAIN, MN-50 8226159002 KNOB, FADER, RED 10 8216513000 SPONG, MN06 11 8212115001 BATTERY, COVER, MN06 12 8221268000 PLATE, BOTTOM, MN-50 13 8207010700 RUBBER, FOOT 9 MN-12/04 MN-12 PartsList · MAIN / SELECTOR PCBs ICs Ref. No. Description U101~701 8236037200 IC, ANALOG, µPC4570H U102, 302 8236037200 IC, ANALOG, µPC4570H U151~351 8236037200 IC, ANALOG, µPC4570H U451 U551 U602 8236041300 IC, ANALOG, NJM4556L 8236038900 IC, DIP, LEDDRIVER, IR2E27A 8236032005 IC, REGULATOR, NJM78M12FA Ref. Description R114~414 8230138203 HT, CARBON, 1/4W, 20K, 5% R115~415 8230138103 HT, CARBON, 1/4W, 10K, 5% R116~416 8230138242 HT, CARBON, 1/4W, 2. 4K, 5% R117~417 8230138223 HT, CARBON, 1/4W, 22K, 5% R118~418 8230138223 HT, CARBON, 1/4W, 22K, 5% R119~419 8230138474 HT, CARBON, 1/4W, 470K, 5% R120~420 8230138102 HT, CARBON, 1/4W, 1K, 5% R121~421 8230138101 HT, CARBON, 1/4W, 100, 5% R122~422 8230138104 HT, CARBON, 1/4W, 100K, 5% R123~423 8230138273 HT, CARBON, 1/4W, 27K, 5% R124~424 8230138563 HT, CARBON, 1/4W, 56K, 5% R151, 251 8230138683 HT, CARBON, 1/4W, 68K, 5% R152, 252 8230138273 HT, CARBON, 1/4W, 27K, 5% R153, 253 8230138563 HT, CARBON, 1/4W, 56K, 5% R154, 254 8230138102 HT, CARBON, 1/4W, 1K, 5% R155, 255 8230138303 HT, CARBON, 1/4W, 30K, 5% R156, 256 8230138332 HT, CARBON, 1/4W, 3. 3K, 5% Ref. No. DIODEs Description R351 R352 R353 R354 R355 8230138203 HT, CARBON, 1/4W, 20K, 5% 8230138203 HT, CARBON, 1/4W, 20K, 5% 8230138203 HT, CARBON, 1/4W, 20K, 5% 8230138223 HT, CARBON, 1/4W, 22K, 5% 8230138102 HT, CARBON, 1/4W, 1K, 5% TRANSISTORs Ref. No. Description C101~401 8232144226 ALU, 25V, 22µF, 20%, SME-VB C102~402 8232050100 CER, 50V, 10PF, +-. 5PF, SL C104~403 8232144226 ALU, 25V, 22µF, 20%, SME-VB C105~405 8232050220 CER, 50V, 22PF, 5%, SL C106~406 8232901332 PES, 50V, . 0033µF, 5%, AMZV C107~407 8232050100 CER, 50V, 10PF, +-. 5PF, SL C108~408 8232901103 PES, 50V, 0. 01µF, 5%, AMZV C109~409 8232901103 PES, 50V, 0. 01µF, 5%, AMZV C110~410 8232146105 ALU, 50V, 1µF, 20%, SME-VB C111~411 8232144226 ALU, 25V, 22µF, 20%, SME-VB C112~412 8232050101 CER, 50V, 100PF, 5%, SL C113~413 8232050101 CER, 50V, 100PF, 5%, SL C114~414 8232143476 ALU, 16V, 47µF, 20%, SME-VB C115~415 8232050100 CER, 50V, 10PF, +-. 5PF, SL C116~416 8232050101 CER, 50V, 100PF, 5%, SL C151, 251 8232050100 CER, 50V, 10PF, +-. 5PF, SL C152, 252 8232144226 ALU, 25V, 22µF, 20%, SME-VB C153, 253 8232050101 CER, 50V, 100PF, 5%, SL C154, 254 8232050101 CER, 50V, 100PF, 5%, SL C351 C352 8232050100 CER, 50V, 10PF, +-. 5PF, SL 8232144226 ALU, 25V, 22µF, 20%, SME-VB Ref. No. CN501 J101~401 J151~451 J501~801 J502~802 J603 J901, 902 S651 PartNo. MISCELLANEOUS Description 8745503006 CONN, XH, 6P 8245330003 CONN, PHONE, YKB21-5011 8245339013 CONN, PH0NES, YKB21-5009 8245330003 CONN, PHONE, YKB21-5011 8245330003 CONN, PHONE, YKB21-5011 8245258000 CONN, PLJACK, DC-INLET 8245330003 CONN, PHONE, YKB21-5011 8253467000 SW, SS010-P022MAM-PA9 C353, 354 8232050101 CER, 50V, 100PF, 5%, SL C451, 452 8232143477 ALU, 16V, 470µF, 20%, SME-VB C453, 454 8232050101 CER, 50V, 100PF, 5%, SL C455, 456 8232050220 CER, 50V, 22PF, 5%, SL 11 MN-12/04 MN-50 Parts List · MAIN / SELECTOR PCBs Ref. No. 8236046100 8236046100 8236046200 8236046100 ICs Description IC, µPC4570C IC, µPC4570C IC, NJM4556AD IC, µPC4570C TRANSISTORs Description TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T DIODEs Description D, HT, 1SS136 LED, SML1216W D, HT, 1SS136 D, HT, 1SS136 OPT, V, LED, RED, RJ3-2034ADS OPT, V, LED, GRN, RT3-5034YGS D, HT, 1SS136 RESISTORs Description HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 330K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 100K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 15K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 100K, 5% HT, CARBON, 1/4W, 68K, 5% HT, CARBON, 1/4W, 27K, 5% HT, CARBON, 1/4W, 56K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 1K, 5% Ref. No. R506, 606 8230138102 R507, 607 8230138220 R508, 608 8230138203 R701 8230138153 R702 8230138473 R703, 704 8230138473 R705 8230138105 R706 8230138222 R801 8230138222 R802 8230138203 R803, 804 8230138222 R805, 806 8230138203 R807, 808 8230138680 R809 8230138105 R810, 811 8230138473 R812 8230138271 VR101~501 8240274003 VR102~401 8240243000 Description HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 22, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 15K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 1M, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 68, 5% HT, CARBON, 1/4W, 1M, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 270, 5% POT, PI, SL30, 20KA, RS30H111 POT, PI, RT09, 50KB, RK09K113 Ref. No. [. . . ] 8236046100 8236046100 8236046200 8236046100 ICs Description IC, µPC4570C IC, µPC4570C IC, NJM4556AD IC, µPC4570C TRANSISTORs Description TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T TR, 2SB1237, PQR, T TR, 2SD1858, QR, T DIODEs Description D, HT, 1SS136 LED, SML1216W D, HT, 1SS136 D, HT, 1SS136 OPT, V, LED, RED, RJ3-2034ADS OPT, V, LED, GRN, RT3-5034YGS D, HT, 1SS136 RESISTORs Description HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 330K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 10K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 100K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 15K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 100K, 5% HT, CARBON, 1/4W, 68K, 5% HT, CARBON, 1/4W, 27K, 5% HT, CARBON, 1/4W, 56K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 1K, 5% Ref. No. R506, 606 8230138102 R507, 607 8230138220 R508, 608 8230138203 R701 8230138153 R702 8230138473 R703, 704 8230138473 R705 8230138105 R706 8230138222 R801 8230138222 R802 8230138203 R803, 804 8230138222 R805, 806 8230138203 R807, 808 8230138680 R809 8230138105 R810, 811 8230138473 R812 8230138271 VR101~501 8240274003 VR102~401 8240243000 Description HT, CARBON, 1/4W, 1K, 5% HT, CARBON, 1/4W, 22, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 15K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 1M, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 2. 2K, 5% HT, CARBON, 1/4W, 20K, 5% HT, CARBON, 1/4W, 68, 5% HT, CARBON, 1/4W, 1M, 5% HT, CARBON, 1/4W, 47K, 5% HT, CARBON, 1/4W, 270, 5% POT, PI, SL30, 20KA, RS30H111 POT, PI, RT09, 50KB, RK09K113 Ref. No. Q101, 102 Q103 Q501, 601 Q701 Q702 Q801 Q802 Q803 PartNo. 8236408900 8234108800 8236408900 8236408900 8234108800 8236408900 8234108800 8236408900 Ref. No. [. . . ]