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Perfect quality. Was able to fix speed drifting on my Sansui Turntable using the service manual instructions for PLL adjustment.
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I am very happy regarding the online purchase of this manual from Owner-Manuals.com as with this I could set right my Denon CD player and Amplifier.
I once again sincerely thank them for the prompt service which was rendered to me.
N. Shanker
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More than pleased with my prurchase, very good product for the price.
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Manual-link came 30 minutes after having paid for an extremely rare (40 years old) item (sony icr-120) and helped me to get the radio rework again. So really good help for me, fast and reliable delivery and -taken that into consideration- a very reasonable price for that service. So thanks again! Mike, Germany
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Some of the pictures in this manual are a bit irritating. I had to dissassemble the unit and some of the screws have different threads, which is not mentioned in this manual. Also some of the drawings of the boards look different than the actual boards.
After all, the manual was very useful. I was able to recalibrate the capstan drive and it is working fine again.
LC-20B2U
TROUBLE SHOOTING TABLE
No Power (Power LED indicator still in red)
Go to the adjustment process mode.
1 +B-ADJ 160 MODEL B2U INCH SIZE 20 SYSTEM N358 NTSC PWM FREQ OCO PAL PWM FREQ OBD NTSC PWM DUTY 0 PAL PWM DUTY 0 TV GAIN OFF ERROR NO RESET 0 V-CHIP 1 CANADIAN VCHIP OFF B2U VER 1.xx
Move the cursor to ERROR NO RESET and click on it (to reset to zero).
Turn off the power.
Is the power turned on again?
No
Check the back light lamp, D3600-3, Q3600-2 and their peripheral parts as well as pin (42) of IC2001.
Note: This model is equipped with the lamp error detection function that detects the current flowing into the fluorescent lamp and protects the backlight lamp drive circuit. If a lamp error is detected, the microprocessor interrupts the unit and the ERROR NO RESET setting will go up. When the ERROR NO RESET setting has reached "5", the microprocessor turns and keeps off the unit's power. To resume the power, take the above procedure to clear the ERROR NO RESET setting.
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