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Service Manual 6301B Personal Monitor Self-Powered CAUTION: CAUTION TO PREVENT ELECTRIC SHOCK, MATCH RISK OF ELECTRIC SHOCK DO NOT OPEN WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. ATTENTION: CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, POUR ÉVITER LES CHOCS ÉLECTRIQUES, DO NOT REMOVE COVER (OR BACK). INTRODUIRE LA LAME LA PLUS LARGE DE NO USER-SERVICEABLE PARTS INSIDE. LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. JUSQU' AU FOND. The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. “WARNING” “TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.” SAFETY INSTRUCTIONS 1. 2. 3. 4. 5. 6. Read instructions - All the safety and operating instructions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future 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, kitchen 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 manufacturer. 9. 10. 11. 12. 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. Heat - The 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 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 against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. Cleaning - The appliance should be cleaned only as recommended by the manufacturer. Nonuse Periods - The power cord of the appliance should be unplugged from the outlet 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 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. 6301B/BX/BE TABLE OF CONTENTS 1. SPECIFICATIONS ........................................................................................ 3 2. OVERALL EXPLODED VIEW .................................................................. 4 3. PCB ASSY AND PARTS LIST ................................................................. 6 4. PATTERN DRAWING .................................................................................. 8 5. CIRCUIT DIAGRAMS .................................................................................. 9 NOTES • Adjustment procedures, parts list, pattern drawing and circuit diagrams are given in this manual to assist the service technician in maintaining the 6301B. • For your information, this service manual complies to the 6301B with the followings are the serial number of 6301B. USA/CND EUR : 0260001 and onwards : 0660001 and onwards UK JPN : 0760001 and onwards : 1060001 and onwards 1. SPECIFICATIONS SPEAKER ( Internal ) Type Impedance Efficiency 10cm Full Range Single Cone 4Ω 84 dB/W (1m) AMPLIFIER Normal Input Level Output Frequency Response Distortion Residual Noise Input Sensitivity Input Impedance -10dBV more than 10Wrms ( 8 Ω load ) 20 ~ 50 kHz +0dB-3dB 0.05 % or less ( at 1W output ) -70dBV (0.3mV) Unbalanced type : -6dBV (0.5Vrms) Balanced type : +4dBm (1.2Vrms) Unbalanced type : Higher than 20kΩ Balanced type : Higher than 10kΩ GENERAL Dimensions Weight Power supply JPN USA/CND EUR/UK Power consumption 120 (W) × 188 (H) × 118 (D) mm 3.0 kg 100 VAC, 50/60 Hz 120 VAC, 60 Hz 230 VAC, 50/60 Hz 33 W 3 BTT 4x12 Bzn 15 3 BTT 4x12 Bzn 19 P 4x10 Bzn 13 9 BTT 4x12 Bzn 12 BTT 4x12 Bzn 7 16 14 PTT 4x8 Bzn 10 11 8 PTT 3x6 Czn 22 21 7 4 15 PTT 3x6 Czn 6 5 17 PTP WH 3x10 Bzn PTT 4x8 Bzn 23 24 15 15 20 2. OVERALL EXPLODED VIEW 1 PTT 3x8 Ni 6301B/BX/BE 4 18 BTT 4x12 Bzn 2 6301B/BX/BE Ref. No. 1 Part No. 8278001000 Description Speaker, 10F05AV 2 3 8216034000 8220462100 Packing, Speaker Cover, Speaker, B3/X/E 4 5 8226050000 8226067000 Button, Push, Power, B3/X/E Knob, Pot, B3/X/E 6 7 8210020100 8216213002 Box, Speaker, B3/X/E (192631) Sound Absorbent, B3/X/E 8 8242041200 8242042001 Trans, Power, 120V, B3/X/E Trans, Power, 220V/240V, B3/X/E 9 8242040200 8274209000 Trans, Power, 100V, B3/X/E PCB Assy, Trans, B3X 10 11 8274216000 8220464000 PCB Assy, PowerAmp, B3/X/E Bracket, PCB, B3/X/E 12 13 8239002000 8274210000 Insulator, IC, B3/X/E PCB Assy, JK2, B3/X/E 14 8274211000 8274212000 PCB Assy, LineAmp, B3 PCB Assy, LineAmp, B3X 8274213000 8216198100 PCB Assy, LineAmp, B3E Gasket, Rear, B3/X/E 16 8220463201 8220463202 Panel, Rear, B3 (192630) Panel, Rear, B3X/E (192629) 17 18 8216196000 8245392000 Cover, XLR, B3X/E Conn, XLR, B3X/E 19 20 8207000209 8276217000 Bushing, B3/X/E Cord, Power, B3/X/E, CSA 8276215000 8276216000 Cord, Power, B3/X/E, CND Cord, Power, B3/X/E, EUR 8276879000 8276003000 Cord, Power, B3/X/E, UK Cord, Power, B3/X/E, JPN 21 22 8253014008 8256075005 SW, Power, B3/X/E Spark-Killer, 0.0047µF 23 24 8274214000 8274215000 PCB Assy, LED, B3/X/E PCB Assy, VR, B3/X/E 15 5 6301B/BX/BE 3. PCB ASSY AND PARTS LIST PCB Assy PowerAmp 8274216000 Ref. No. C001 C002 C003, 004 C005 C006 C007 C008, 009 C010 C011, 012 D001 R001 R002 R004 R005 R006 R007 R008 R010 U001 Part No. 8232050471 8232098105 8232097227 8232095476 8232026123 8232026104 8232074000 8232026103 8232133478 8234001607 8230004102 8230004563 8230004122 8230004563 8230004153 8230004102 8230004100 8230004222 8234045600 PCB Assy LineAmp Ref. No. C021, 022 C021, 022 C023 C024, 025 R021 R022 R022 R023 R024 R024 R025 R026 R027 R028, 029 U002 DZ001, 002 CN002 JK001 JP006, 007 6 Description CAP, CER, 50V, 470pF, 5% CAP, ALU, 50V, 1µF, 20% CAP, ALU, 35V, 220µF, 20% CAP, ALU, 16V, 47µF, 20% CAP, PES, 50V, 0.012µF, 5% CAP, PES, 50V, 0.1µF, 5% CAP, CER, 50V, 0.1µF, 20% CAP, PES, 50V, 0.01µF, 5% CAP, ALU, 35V, 4700µF, 20% D, STACK, 2W02G RES, CARBON, 1/4W, 1K, 5% RES, CARBON, 1/4W, 56K, 5% RES, CARBON, 1/4W, 1.2K, 5% RES, CARBON, 1/4W, 56K, 5% RES, CARBON, 1/4W, 15K, 5% RES, CARBON, 1/4W, 1K, 5% RES, CARBON, 1/4W, 10, 5% RES, CARBON, 1/4W, 2.2K, 5% IC, PowerAmp, TDA2050 B * * * * * * * * * * * * * * * * * * * BX * * * * * * * * * * * * * * * * * * * BE * * * * * * * * * * * * * * * * * * * B BX BE * 8274211000 Part No. 8232095106 8232095106 8232096476 8230004103 8230004103 8230004102 8230004392 8230004103 8230004392 8230004103 8230004392 8230004102 82360212000 8234503959 8245053003 8245103000 Description CAP, ALU, 16V, 10µF, 20% Jumper CAP, ALU, 16V, 10µF, 20% CAP, ALU, 25V, 47µF, 20% RES, CARBON, 1/4W, 10K, 5% RES, CARBON, 1/4W, 10K, 5% RES, CARBON, 1/4W, 1K, 5% RES, CARBON, 1/4W, 3.9K, 5% RES, CARBON, 1/4W, 10K, 5% Jumper RES, CARBON, 1/4W, 3.9K, 5% RES, CARBON, 1/4W, 10K, 5% RES, CARBON, 1/4W, 3.9K, 5% RES, CARBON, 1/4W, 1K, 5% IC, Analog, NJM4560DX D, ZENER, MTZ J 15C Conn, JACK, 8263, 3P, WHT Conn, Phone, B/BX/BE Jumper * * * * * * * * * * * * * * * * * * * * * * * * * * * 6301B/BX/BE PCB Assy JK2 Ref. No. JK002 Part No. 8245103000 PCB Assy VR Ref. No. VR001 B * BX * BE * Description POT, 50KA, B/BX/BE B * BX * BE * B * BX * BE * B BX * * * * BE 8274214000 Part No. 8234006400 PCB Assy TRANS Ref. No. R031, 032 R034 T002 CN002 Description Conn, Phone, B/BX/BE 8274215000 Part No. 8240212002 PCB Assy LED Ref. No. D002 8274210000 Description OPT, LED, RED, GL-3PR8 8274209000 Part No. 8230004512 8230004102 8242099000 8245053003 Description RES, CARBON, 1/4W, 5.1K, 5% RES, CARBON, 1/4W, 1K, 5% TRANS, LINE, BX Conn, JACK, 8263, 3P, WHT 7 N W13 W10 TO SPK G I O G S V+ VR28 R29 C21 R21 JP7 JK1 ZD2 R27 U2 C23 C22 R26 R25 R22 R24 R23 JP6 R5 U1 JK2 I G 6301-104 VR O VR1 W41 G I/P S G N 6301-105 LED C2 R2 R1 C1 6301-101 POWER AMP BRN T2 ORG R31 R34 W62 D2 G RED CN1 BLK R32 6301-106 TRANS YEL G S V+ V- G I/P S G 6301-102 LINE AMP ORG ORG BLK W11 CN2/W26 C24 U3 R8 C25 W15 P W21 R10 D1 ZD1 R7 C10 C7 C6 R6 R4 C5 C12 C4 C9 W31 6301-103 C8 C11 P W51 C3 W12 W14 8 4. PATTERN DRAWING 6301B/BX/BE +VCC1 C3 220/35 6301-104 3 W14 W41 VR1 50KA 2 1 4 3 2 1 C2 1/50 R1 1K 1 2 3 4 TDA2050 6301-103 C8 0.1 5 W13 3 2 1 1 4 2 U1 3 R2 56K C1 470P C9 0.1 C4 220/35 EXT SP W31 2 4 1 3 2 1 R8 10 JK2 W10 2 1 C10 0.01 SP -VCC1 SP1 PGND1 C6 0.012 R5 56K R4 1.2K 5. CIRCUIT DIAGRAMS 6301-101 6301B R7 1K R6 15K C7 0.1 6301-102 C5 47/16 W12 W21 JK1 2 4 1 1 2 3 4 1 2 3 4 SGND1 +VCC1 6301-105 R10 2.2K W15 1 2 W51 D2 1 2 POWER LED PGND1 S1 P1 W11 T1 ORG 2 Z1 +VCC1 D1 BLK 4 1 C11 4700/35 3 ORG C12 4700/35 PGND1 -VCC1 SGND1 9 6301B/BX/BE AC POWER IN 6301B/BX/BE 10 6301-106 6301BX R31 5.1K WIPT 2 CN1 R34 1K 3 2 1 3 2 1 RED WHT W62 ORG 1 RED 1 3 2 1 YEL 1 6301-104 3 R32 5.1K 1 GND J3 T2 BRN 1 BLK VR1 50KA 1 W41 4 3 2 1 2 3 BALANCE INPUT 1 6301-101 +VCC1 6301-102 R23 3.9K W14 +VCC C21 NON CN2/W26 3 2 1 R22 1K JP7 SGND R27 3.9K 8 2 3 R21 NON 1 4560 R25 3.9K U2A 4 R24 10K JP6 5 TDA2050 SGND W13 3 2 1 4 R2 56K C1 470P 7 U1 3 C9 0.1 -VCC SGND C4 220/35 C23 10/16 W10 2 1 C10 0.01 SP SP1 PGND1 +VCC R28 1K R4 1.2K ZD1 15B2 C6 0.012 ZD2 15B2 1 2 3 4 R29 1K R7 1K R6 15K C7 0.1 C5 47/16 W12 W21 C25 47/25 JK2 -VCC1 SGND SGND 2 4 1 3 2 1 R8 10 R5 56K C24 47/25 EXT SP W31 U2B C22 NON JK1 2 4 1 6301-103 C8 0.1 5 1 2 6 4560 C2 1/50 R1 1K 1 2 3 4 R26 NON SGND UNBALANCE INPUT C3 220/35 1 2 3 4 SGND1 +VCC1 -VCC 6301-105 R10 2.2K W15 1 2 W51 D2 1 2 POWER LED PGND1 S1 P1 W11 T1 ORG 2 Z1 +VCC1 D1 AC POWER IN BLK 4 1 C11 4700/35 3 ORG C12 4700/35 PGND1 -VCC1 SGND1 6301BE 6301-104 3 W41 4 3 2 1 2 VR1 50KA 1 6301-101 +VCC1 6301-102 BALANCE INPUT 2 WIPT C21 10/16 CN2/W26 3 2 1 1 GND J3 R23 3.9K W14 +VCC 3 2 1 RED WHT C3 220/35 R22 10K 8 2 3 R21 10K JP7 SGND SGND 1 4560 R25 3.9K U2A 4 R24 NON 3 R27 3.9K JP6 C22 10/16 6301-103 C8 0.1 5 W13 3 2 1 1 4 R2 56K C1 470P 7 4560 TDA2050 2 6 5 C2 1/50 R1 1K 1 2 3 4 U1 3 C9 0.1 2 4 1 R8 10 JK2 U2B -VCC SGND C4 220/35 C23 10/16 W10 2 1 C10 0.01 R26 10K SGND EXT SP W31 3 2 1 SP -VCC1 UNBALANCE INPUT JK1 2 4 1 SP1 PGND1 C6 0.012 R5 56K +VCC R28 1K SGND ZD1 15B2 C24 47/25 SGND R4 1.2K ZD2 15B2 C25 47/25 R29 1K R6 15K C7 0.1 C5 47/16 W12 W21 1 2 3 4 1 2 3 4 R7 1K SGND1 +VCC1 -VCC 6301-105 R10 2.2K W15 1 2 W51 D2 1 2 POWER LED PGND1 S1 P1 W11 T1 ORG 2 Z1 +VCC1 D1 AC POWER IN BLK 4 1 C11 4700/35 ORG C12 4700/35 PGND1 -VCC1 SGND1 11 6301B/BX/BE 3 FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021 FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A. © PRINTED IN JAPAN FEB 1999 8288779000
