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I am a vintage hifi collector. No way to fix that device without the appropriate service manual...thanks to your site I got it and every thing is easier now. I got the manual right after ordering: fast cheap accurate ... thank you
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Wonderful job clear. Qick fantastic. These people are really good. If even a problem arise they are wonderful assisting you. These scheme is so net despite this is a very old TV. Thank you for everything!!!!!!!!
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Detailed schematic diagram, manual for professionals
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Good service manual,exploded view,adjusment and test point locations,head alignment,mechanical checks and adjusments,all perfect.
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Block diagram,play rec block diagram,adjusments, it's a very good well done repair manual.
DX-V888W
� Press the ON/STAND-BY button. Is FL displayed ? Yes Is the SHARP logo screen displayed ? No Yes "The SHARP logo is not displayed." "FL is not displayed."
No
Is "ERROR" displayed ? No Can the tray be open or closed, and can the disc be changed ? Yes Is No Disc displayed ? No Can a Video CD be played ? Yes Can the Audio signal be heard ?
Yes
"ERROR is displayed."
No
"The changer mechanism is malfunctioning."
"No Disc is displayed." Yes
No
"The Video CD cannot be played normally."
"No sound is heard." No
Yes Is an audio signal being output from the microphone ? No Yes The microphone signal is not being output.
End
� The SHARP logo is not displayed.
Is the voltage on pin 52 (VREF) on IC14 (ES3883F) about 1.3 V ? Yes Is a 13.5 MHz clock signal available at pin 79 (PCLK) on IC14 ?
No
Check C173.
Check the soldering on IC14 and the voltage at each pin. No
Yes Is the signal shown in waveform drawing 8, 9 and 10 being supplied to pin 82 (HSYNC), pin 84 (VSYNC) and pin 86 (YUV7) on IC14 ? Yes Is a video signal available at pin 64 (VDAC) on IC14 ? Yes Check the terminal PWB connector and each transistor. No Check the soldering at pin 64 on IC14, and at R191 and R199. If there is no problem, IC14 is defective. Check the soldering on IC15 (ES4108F) and IC18 (16M S DRAM) and the voltage at each pin.
No
� 29 �
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