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I would not plug this machine in without finding a manual like this. In addition to setup and normal operating instructions, it has troubleshooting flowcharts, diagrammed mechanical adjustments, and schematics to beat the band. The tech I hand it to would be thrilled to find solder side PCB diagrams with component outlines superimposed, pinouts for every IC chip, and line drawings of transistors, with labeled legs.
As for printing quality, this may be a copy of a copy, but even the finest print when enlarged is very legible. There is a bit of grayed print over a few pages, as if a wet page were placed over it, but the print is still very legible. If you could borrow an original manual and get it printed and bound for 4 to 6 times the cost, you could get better quality. In that case you wouldn't be here. For price, utility, and availability I am rating this manual highly.
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I received the Manual in a timely manner and it was exactly what I needed.
This is a perfect copy of the Service Manual, The quality is great. I am very
happy. Thank you
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exactly as they say. Within 24 hours the link to the pages and offcourse it was the right service manual. Super and thanks
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The manual was exact the thing that was promised. My old car stereo is working again thanks to the information supplied.
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I PURHASED THIS PRODUCT BECAUSE I WAS HAVING PROBLEMS WITH MY CDR20 HARMAN KARDON RECORDER. WHICH I PURCHASED NEW 12 YEARS AGO. AFTER REVIEWING THE MANUAL, I WAS ABLE TO ADJUST THE TENSIONER IN THE SYSTEM. WORKS LIKE A CHAMP!.
SAVED ME AT LEAST 100.00 WHICH WAS WHAT A SERVICE REPAIR STATION WANTED. GREAT MANUAL EASY TO READ. SPECIALLY AFTER I PRINTED THE PAGES WHICH DEALT WITH MY RECORDER. THANKS A LOT!!!!!!!!
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
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