JVC MX-GA77 free download

File name MX-GA77.pdf

MX-GA77 SERVICE MANUAL COMPACT COMPONENT SYSTEM MX-GA77 Area suffix B ------------------------ U.K. E ---- Continental Europe EN ----- Northern Europe EV ------- Eastern Europe CD 1 STANDBY CD 2 CD 3 DISC CHANGE ECO COMPACT COMPONENT SYSTEM MX-GA77 REC START / STOP R O C K D A N C E REPEAT CD REC START P O P H A L L PROGRAM DUBBING CLASSIC STADIUM RANDOM DISPLAY VOLUME CLOCK / TIMER PHONES UND MODE SO PRESET SET MP3 CANCEL / DEMO SOUND TURBO TAPE A / B DISPLAY MODE RDS MODE SELECT SUBWOOFER LEVEL TUNING TUNING BEEP EJECT EJECT SP-MXGA77 CA-MXGA77 SP-MXGA77 Contents Safety Precautions Important for laser produbts Preventing static electricity Disassembly method Wiring connection Adjustment method 1-2 1-4 1-5 1-6 1-19 1-20 Flow of functional operation until TOC read Maintenance of laser pickup Replacement of laser pickup Trouble shooting Description of major ICs 1-24 1-25 1-25 1-26 1-30~44 COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. No.22083 Jul. 2003 MX-GA77 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only. 2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. 3. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. 4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling. 5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the pr