Fostex-CR300-cd-tape维修电路原理图.pdf

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1、Service Manual Model COMPACT DISC RECORDER FOR U.S. MODELS NECESSARY INFORMATION FOR DHHS RULES MARKED ON THE REAR BASE AND ON THE TOP OF CD MECHANISM AS BELOW. DANGER - LASER RADIATION WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM. RadioFans.CN 收音机爱 好者资料库 SAFETY INSTRUCTIONS Read instructions - All the

2、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 reference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instr

3、uctions - 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 u

4、sed 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 surfaces may cause the appliance and cart combination to over- turn. Wall or Ceiling Mounting - The appliance should be mount

5、ed 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 ven- tilation. For example, the appliance should not be situ- ated on a bed, sofa, rug, or similar surface that may bloc

6、k 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 - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (includin

7、g 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

8、 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 recep- tacles, and the point where they exit from the app

9、liance. 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 outlet when left unused for a long period of time. Object and Liquid Entry - Care should be taken so that objects do not fall an

10、d 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- pliance beyond that described in the operating instruc- tions.

11、 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: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. TO PREVENT ELECTRIC SHOCK

12、, 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 PRISE ET POUSSER JUSQU AU FOND. CAUTION: ATTENTION: The exclamation point within an equilateral triangle is intended to alert the

13、user to the presence of important operating and mainte- nance (servicing) instructions in the literature accompanying the appliance. 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

14、 products en- closure that may be of sufficient magnitude to constitute a risk of electric shock to persons. “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 has been damaged; or Ob

15、jects 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 exhibits a marked changed in performance; or The appliance has been dropped, or the enclosure damaged. 9. 10. 11. 12. 13. 14. 15. 16. 1

16、7. RadioFans.CN 收音机爱 好者资料库 CR300 3 The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Mod

17、el 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screw heads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured mu

18、st not exceed 0.5mA. SAFETY PRECAUTIONS Leakage current tester Reading should not be above 0.5mA Device under test Test all exposed metal surfaces Also test with plug reversed (Using AC adapter plug as required) Earth ground AC Leakage Test ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE I

19、NDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necess

20、arily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the par

21、ts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under

22、 review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. 2. PRODUCT SAFETY NOTICE (FOR USA MODEL ONLY)

23、 NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI in

24、diquent que les pices de remplacement doivent avoir la mme dsignation. This service manual is intended for qualified service technicians ; it is not meant for the casual do- it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely

25、 repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do s

26、o and refer the repair to a qualified service technician. WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health when GFS is “H”, this pin outputs “H”. If

27、 GFS is “L” eight consecutive samples, this pint outputs “L”. Input when LKIN=“1”. - - - - - - - - - - EFM full-swing output (“L”=VSS, “H”=VDD) Outputs “H” when the playback disc has emphasis, and “L” when there is no emphasis. Notes) PCMD is an MSB first, twos complement output. GTOP is used to mon

28、itor the frame sync protection status. (High: sync protection window released) XUGF is the negative pulse for the frame sync derived from the EFM signal. It is the signal before sync protection. XPCK is the inverse of the EFM PLL clock. The PLL is designed so that the falling edge of XPCK and the EF

29、M signal transition point coincide. GFS goes high when the frame sync and the insertion protection timing match. RFCK is derived with the crystal accuracy. This signal has a cycle of 136us. C2PO represents the data error status. XROF is generated when the 32K RAM exceeds the 28 Frame jitter match. R

30、adioFans.CN 收音机爱 好者资料库 CR300 58 Block Diagram TK11041M-1 (SERVO DIGITAL PCB ASSY: IC355, Thermo Sensor IC) 1 Temperature Sensor VO 3 VCC 1 GND 5 Block Diagram S-806E (FUNCTION A ASSY: IC702, Voltage Detector IC) 1 VDD VSS OUT 2 3 RadioFans.CN 收音机爱 好者资料库 CR300 59 Block Diagram PE8001A (AUDIO PCB ASSY

31、: IC401, D/A Converter IC) Serial Input I/F 8X Oversampling Digital Filter with Function Controller Multi-level Delta-Sigma Modulator BPZ-Cont Crystal OSCPower Supply Low-pass Filter DAC Low-pass Filter Open drain DAC Mode Control I/FSCK 1 LRCK 2 DATA 23 CS/IWO 24 MODE 25 MUTE 22 RST 6 XTO 8 VDD 14

32、AGND1 15 VCC1 7 DGND 5 XTI 4 CLKO 26 MD/DM0 27 MC/DM1 28 ML/IIS 3 BCK 16VOUTL 18EXTL 13VOUTR 11EXTR 21ZERO 20 VCC2L 19 AGND2L 9 VOUT2R 10 AGND2R Pin Function 1KCRLI)s f (tupn ikco l cKCRL511CCVV5+y l ppusrewopgo l anA 2ATADItupn iataD61LTUOV O tuptuoegat l ovgo l anahcL 3KCBIatadroftupn ikco l c t i

33、 B71CNno i t cennocnoN 4OKLCOkco l cme t s ysfotuptuoref fuB81LTXE O nommoc.pmatuptuogo l anahcL 5ITXI l a nre t x erono i t cennocno i ta l l i csol a t s yrC tupn ikco l c 91L2DNGADNGgo l anA 6OTXOno i t cennocno i ta l l i csol a t s yrC02L2CCVV5+y l ppusrewopgo l anA 7DNGDDNGl at i g iD12 OREZ O

34、 ga l fatadoreZ 8DDVV5+y l ppusrewopl at i g iD22 TSR I teseR 9R2CCVV5+y l ppusrewopgo l anA32 OWI /SC I t c e l estamroftupnI/ t c e l esp i hC 01R2DNGADNGgo l anA42EDOM I t c e l es l o r t nocedoM )erawdraH:L,erawt foS:H( 11RTXEOnommoc.pmatuptuogo l anahcR52 ETUMI l o r t nocetuM 21CNno i t cenno

35、cnoN620MD/DM I 1 t c e l ess i sahpmeed/atad l o r t nocedoM 31RTUOVOtuptuoegat l ovgo l anahcR721MD/CM I 2 t c e l ess i sahpmeed/KCB l o r t nocedoM 411DNGADNGgo l anA82SI I /LM I t c e l estamroftupnI/h c t a l l o r t nocedoM :etoN tupn iregg i r tt t imhcS: rot s i serpu- l l uph t i wtupn ireg

36、g i r tt t imhcS: rot s i sernwod- l l uph t i wtupn iregg i r tt t imhcS: *2 - *1 No.Pin NameFunctionI/ONo.Pin NameFunctionI/O - - - - - - - - - *1 *1 *1 *2 *2 *2 *2 *3 *3 *2 *2 RadioFans.CN 收音机爱 好者资料库 CR300 60 7-2. DISPLAY FL TUBE PEL1097 (FUNCTION PCB ASSY: V701) Anode & Grid Assignment 135 RadioFans.CN 收音机爱 好者资料库 CR300 61 Pin Assignment RadioFans.CN 收音机爱 好者资料库 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 JUNE 1999 8288782000 RadioFans.CN 收音机爱 好者资料库