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Excellent manual including schematics. The service was great and the manual helped complete the job.
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It was magic after so many years to still be able to source this info. It was equally amazing to return my Pioneer receiver to it near new sound quality AFTER NEARLY 30 YEARS! Thank you for this ability!
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Very quick and easy website to use and fast download of manual, quality of manual is excellent and will be pleased to use this service again in the future, thanks so much!
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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
XV-N50BK,XV-N55SL
3.12Check points for each error 3.12.1 Spindle start error (1) Defective spindle motor � Are there several ohms resistance between each pin of CN101 "5-6","6-7","5-7"? (The power supply is turned off and measured.) � Is the sign wave of about 100mVp-p in the voltage had from each terminal? [ CN101"9"(H1+),"10"(H1-),"11"(H2+),"12"(H2-),"13"(H3+),"14"(H3-) ] (2) Defective spindle motor driver (IC251) � Has motor drive voltage of a sine wave or a rectangular wave gone out to each terminal(SM1~3) of CN101"5,6,7" and IC251"2,4,7"? � Is FG pulse output from the terminal of IC251"24"(FG) according to the rotation of the motor? � Is it "L(about 0.9V)" while terminal of IC251"15"(VH) is rotating the motor? (3) Has the control signal come from servo IC or the microcomputer? � Is it "L" while the terminal of IC251"18"(SBRK) is operating? Is it "H" while the terminal of IC251"23"(/SPMUTE) is operating? � Is the control signal input to the terminal of IC251"22"(EC)? (changes from VHALF voltage while the motor is working.) � Is the VHALF voltage input to the terminal of IC251"21"(ECR)? (4) Is the FG signal input to the servo IC? � Is FG pulse input to the terminal of IC301"69"(FG) according to the rotation of the motor? 3.12.2 Disc Detection, Distinction error (no disc, no RFENV) � Laser is defective. � Front End Processor is defective (IC101). � APC circuit is defective. --- Q101,Q102. � Pattern is defective. --- Lines for CN101 - All patterns which relate to pick-up and patterns between IC101 � IC101 --- For signal from IC101 to IC301, is signal output from IC101 "21" (ASOUT) and IC101 "36"(RFENV) and IC101 "20" (FEOUT)? 3.12.3 Traverse movement NG (1) Defective traverse driver � Has the voltage come between terminal of CN101 "49" and "50" ? (2) Defective BTL driver (IC201) � Has the motor drive voltage gone out to IC201"17" or "18"? (3) Has the control signal come from servo IC or the microcomputer? � Is it "H" while the terminal of IC201"9"(STBY1) ? � TRSDRV Is the signal input? (IC301 "67") (4) TRVSW is the signal input from microcomputer? (IC301 "56") 3.12.4 Focus ON NG � Is FE output ? --- Pattern, IC101 � Is FODRV signal sent ? (R209) --- Pattern, IC301 "115" � Is driving voltage sent ? � IC201 "13", "14" --- If NG, pattern, driver, mechanical unit . � Mechanical unit is defective. 3.12.5 Tracking ON NG � When the tracking loop cannot be drawn in, TE shape of waves does not settle. � Mechanical unit is defective. Because the self adjustment cannot be normally adjusted, the thing which cannot be normally drawn in is thought. � Periphery of driver (IC201) Constant or IC it self is defective. � Servo IC (IC301) When improperly adjusted due to defective IC. (No.A0041)1-23
 $4.99 XVN50BK JVC
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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