User manual FOSTEX 6301B - SERVICE MANUAL

Service Manual 6301B Personal Monitor Self-Powered CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER 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. 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. 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. 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. 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 UK JPN : 0260001 and onwards : 0660001 and onwards : 0760001 and onwards : 1060001 and onwards 1. SPECIFICATIONS SPEAKER ( Internal ) Type Impedance Efficiency 10cm Full Range Single Cone 4 84 dB/W (1m) AMPLIFIER Normal Input Level Output Frequency Response Distortion Residual Noise Input Sensitivity Input Impedance -10dBV more than 10Wrms ( 8 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 20k Balanced type : Higher than 10k 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 6301B/BX/BE 4 2. OVERALL EXPLODED VIEW 2 1 15 BTT 4x12 Bzn BTT 4x12 Bzn PTP WH 3x10 Bzn BTT 4x12 Bzn 18 17 PTT 3x8 Ni 3 19 13 9 12 BTT 4x12 Bzn P 4x10 Bzn BTT 4x12 Bzn 20 7 14 PTT 4x8 Bzn 16 10 8 11 PTT 3x6 Czn 22 21 7 15 PTT 3x6 Czn 4 5 PTT 4x8 Bzn 6 15 23 15 24 6301B/BX/BE Ref. No. 1 2 3 4 5 6 7 8 Part No. 8278001000 8216034000 8220462100 8226050000 8226067000 8210020100 8216213002 8242041200 8242042001 8242040200 8274209000 8274216000 8220464000 8239002000 8274210000 8274211000 8274212000 8274213000 8216198100 8220463201 8220463202 8216196000 8245392000 8207000209 8276217000 8276215000 8276216000 8276879000 8276003000 Description Speaker, 10F05AV Packing, Speaker Cover, Speaker, B3/X/E Button, Push, Power, B3/X/E Knob, Pot, B3/X/E Box, Speaker, B3/X/E (192631) Sound Absorbent, B3/X/E Trans, Power, 120V, B3/X/E Trans, Power, 220V/240V, B3/X/E Trans, Power, 100V, B3/X/E PCB Assy, Trans, B3X PCB Assy, PowerAmp, B3/X/E Bracket, PCB, B3/X/E Insulator, IC, B3/X/E PCB Assy, JK2, B3/X/E PCB Assy, LineAmp, B3 PCB Assy, LineAmp, B3X PCB Assy, LineAmp, B3E Gasket, Rear, B3/X/E Panel, Rear, B3 (192630) Panel, Rear, B3X/E (192629) Cover, XLR, B3X/E Conn, XLR, B3X/E Bushing, B3/X/E Cord, Power, B3/X/E, CSA Cord, Power, B3/X/E, CND Cord, Power, B3/X/E, EUR Cord, Power, B3/X/E, UK Cord, Power, B3/X/E, JPN SW, Power, B3/X/E Spark-Killer, 0.0047µF PCB Assy, LED, B3/X/E PCB Assy, VR, B3/X/E 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 8253014008 8256075005 8274214000 8274215000 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 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 * * * * * * * * * * * * * * * * * * * 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 8274211000 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 B BX * * * BE * * * * * * * * * * * * * * Part No. 8232095106 8232095106 8232096476 8230004103 8230004103 8230004102 8230004392 8230004103 8230004392 8230004103 8230004392 8230004102 82360212000 8234503959 8245053003 8245103000 * * * * * * * * * * * 6 6301B/BX/BE PCB Assy JK2 Ref. No. JK002 8274210000 Description Conn, Phone, B/BX/BE B * BX * BE * Part No. 8245103000 PCB Assy VR Ref. No. VR001 8274215000 Description POT, 50KA, B/BX/BE B * BX * BE * Part No. 8240212002 PCB Assy LED Ref. No. D002 8274214000 Description OPT, LED, RED, GL-3PR8 B * BX * BE * Part No. 8234006400 PCB Assy TRANS Ref. No. R031, 032 R034 T002 CN002 8274209000 Description RES, CARBON, 1/4W, 5.1K, 5% RES, CARBON, 1/4W, 1K, 5% TRANS, LINE, BX Conn, JACK, 8263, 3P, WHT B BX * * * * BE Part No. 8230004512 8230004102 8242099000 8245053003 7 W13 W10 TO SPK G I O W21 G S V+ VR28 R29 C24 C25 CN2/W26 R10 U3 D1 R8 R7 ZD1 ZD2 R27 U2 R21 6301B/BX/BE 4. PATTERN DRAWING ORG ORG BLK W11 C12 C11 C10 C7 C6 R6 6301-102 LINE AMP C21 JP7 JK1 C23 JP6 R4 C5 6301-104 VR C4 O I G JK2 C9 C8 VR1 W41 G I/P S G N P W51 W31 6301-103 C3 G I/P S G W14 6301-101 POWER AMP R1 R31 R34 D2 G S V+ VW12 BLK R32 6301-106 TRANS 8 N W15 P C2 R26 R25 R22 R24 R23 C22 R5 U1 6301-105 LED R2 C1 T2 BRN W62 ORG CN1 YEL G RED 5. CIRCUIT DIAGRAMS 6301B 6301-104 3 W41 VR1 50KA 1 2 4 3 2 1 6301-101 +VCC1 C3 220/35 W14 1 2 3 4 R1 1K C2 1/50 TDA2050 1 5 C8 0.1 4 W13 3 2 1 R8 10 6301-103 W31 3 2 1 2 4 1 JK2 EXT SP 2 C1 470P R2 56K U1 3 C9 0.1 C4 220/35 C10 0.01 W10 2 1 SP SP1 -VCC1 PGND1 R5 56K R6 15K C7 0.1 C6 0.012 R7 1K R4 1.2K 6301-102 W21 JK1 2 4 1 1 2 3 4 W12 1 2 3 4 C5 47/16 SGND1 +VCC1 R10 2.2K W15 1 2 6301-105 W51 1 2 POWER LED PGND1 D2 S1 W11 T1 ORG 2 D1 BLK 4 1 C11 4700/35 3 ORG +VCC1 P1 Z1 AC POWER IN C12 4700/35 6301B/BX/BE PGND1 SGND1 -VCC1 9 6301B/BX/BE 10 6301BX WIPT RED WHT 2 J3 1 GND 3 3 2 1 6301-106 R31 5.1K BRN 1 T2 ORG 1 W62 3 2 1 CN1 3 2 1 R34 1K R32 5.1K RED 1 YEL 1 6301-104 3 W41 4 3 2 1 6301-101 +VCC1 C3 220/35 BLK 1 VR1 50KA 1 2 BALANCE INPUT 6301-102 R23 3.9K +VCC W14 R27 3.9K R25 3.9K 1 2 3 4 7 U2B SGND C23 10/16 C4 220/35 C10 0.01 W10 2 1 R1 1K C2 1/50 C8 0.1 4 2 C1 470P R2 56K U1 3 C9 0.1 R8 10 W13 3 2 1 6301-103 W31 3 2 1 2 4 1 JK2 TDA2050 1 5 EXT SP CN2/W26 3 2 1 R21 NON C21 NON R22 1K 8 2 3 4560 U2A 4 -VCC R26 NON 1 6 5 4560 JP7 SGND R24 10K JP6 SGND SGND JK1 2 4 1 +VCC C22 NON SP SP1 -VCC1 PGND1 R5 56K R28 1K ZD1 15B2 W21 1 2 3 4 R6 15K C7 0.1 C6 0.012 R7 1K UNBALANCE INPUT SGND R4 1.2K W12 1 2 3 4 C5 47/16 C24 47/25 SGND C25 47/25 ZD2 15B2 R29 1K SGND1 -VCC +VCC1 R10 2.2K W15 1 2 6301-105 W51 1 2 POWER LED PGND1 D2 S1 W11 T1 ORG 2 D1 +VCC1 1 C11 4700/35 3 ORG C12 4700/35 PGND1 SGND1 P1 Z1 AC POWER IN BLK 4 -VCC1 6301BE 6301-104 3 W41 VR1 50KA 1 2 4 3 2 1 6301-101 +VCC1 6301-102 R23 3.9K +VCC WIPT 3 2 1 1 GND J3 3 SGND SGND JK1 2 4 1 +VCC SGND ZD1 15B2 R28 1K R4 1.2K W21 1 2 3 4 W12 1 2 3 4 C5 47/16 C22 10/16 CN2/W26 3 2 1 R21 10K C21 10/16 R22 10K W14 R27 3.9K R25 3.9K 1 2 3 4 7 U2B SGND C23 10/16 C4 220/35 C10 0.01 W10 2 1 R1 1K C2 1/50 C8 0.1 4 2 C1 470P R2 56K U1 3 C9 0.1 R8 10 W13 3 2 1 6301-103 W31 3 2 1 C3 220/35 BALANCE INPUT RED WHT 2 TDA2050 1 5 EXT SP 2 4 1 JK2 8 2 3 4560 U2A 4 -VCC R26 10K 1 6 5 4560 JP7 SGND R24 NON JP6 SP SP1 -VCC1 UNBALANCE INPUT PGND1 R5 56K R6 15K C7 0.1 C6 0.012 R7 1K C24 47/25 SGND C25 47/25 ZD2 15B2 R29 1K SGND1 -VCC +VCC1 R10 2.2K W15 1 2 6301-105 W51 1 2 POWER LED PGND1 D2 S1 W11 T1 ORG 2 D1 +VCC1 1 C11 4700/35 3 ORG C12 4700/35 PGND1 SGND1 P1 Z1 AC POWER IN BLK 4 6301B/BX/BE -VCC1 11 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