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fast and easy and exactly what I was looking for. Not the cheapest but value for money after all.
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The manual for the Sansui P-L75 was not one of the more informative turntable manuals around but for $5 it was helpful enough.
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VERY GOOD SERVICE.FAST ANS VERY HONEST PRICE .RHAANK HERNAN
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Thanks to this service manual I repaired my old camcorder! The manual perfectly explains how to disassemble the camcorder step by step.
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This manual is very useful because it presents the technical specifications of the cd player, including the manufacturer of the reader, this helps if you need to replace it. It also displays the settings and layout of the circuit.
7 Troubleshooting
7-2-14 ABL Failure
Symptoms : � Full white luminance is too bright. (ABL minium is over 35 F/L) � Full white luminance is too dark. (ABL maximum is under 35 F/L) � The luminance of full white and No Video are almost same.
Display the full white pattern.
Check connections between CN202 and CN202_2.
No
Does full white luminance vary, adjusting ABL step with Softjig? Yes
Yes
Are full white and white square luminance almost same? No
Does the PWM duty of IC202�s Pin 21 vary adjusting ABL step? No Check and replace IC202 and around parts.
Yes
No
Is R121 right as CRT�s differential items? Yes
Replace R121 to higher or lower one that meets the spec.
Replace it.
Does the voltage of IC101�s Pin 8 vary between full white and No Video?
F/W: 4.1~4.3V No Video: 5.3~6.0V
Yes Check and replace IC101.
No Yes Check and replace D518, IC101.
Does T501�s Pin 8 voltage vary between full white and No Video?
F/W: 1.5~3.0V No Video: 5.5~7.0V
No No
Are 12 V line, R504, L504, Q501 and Q518 ok? Yes Are C509, D514, Q502 and Q506 ok? Yes Check and replace T501 and CRT.
Replace it.
No
Replace it.
7-16
CHA42*7L/5**7L
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