Home » Sharp » Flat Panel Televisions » Sharp LC-C3742U

Sharp LC-C3742U Support Question

Find answers below for this question about Sharp LC-C3742U.
Need a Sharp LC-C3742U manual? We have 1 online manual for this item!

Sharp Overview Questions Manuals Reviews Videos Research

Question posted by Rabirius92 on March 22nd, 2017

The Power And Opc Light Blink Once Together, Then The Power Alone, Pause, Repeat

I can stop them both from blinking (power light only on) if I press volume down and channel up while plugging it in. but I still have nothing on the screen. I have tried combinations of buttons, but can't reach another menu. Does anyone know what the blinking code means? How to reach a further menu or a place or manual where I can get some answers? Also, the power button on the tv itself stopped working a long time ago. I was using the remote to turn it on and off. (Sharp Aquos LC-C372U)

I Know the Answer!

I have the same question
Request More Information

Current Answers

Answer #1: Posted by Odin on March 22nd, 2017 9:31 AM

This answer was accepted by the poster of the original question.

Odin

Member since:
April 10th, 2010

Points: 41,236,670

1,070
points

Is your TV on the correct input? Change the input on your TV if needed. Check for loose or damaged connections on the back of your TV. Make sure the component you are trying to watch is turned ON. You can also unplug the TV for 10 minutes and see if that resets the issue. As a last resort, go into the menu of your TV and do a factory reset.

Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.

Answer #2: Posted by BusterDoogen on March 22nd, 2017 9:56 AM

BusterDoogen

Member since:
October 30th, 2011

Points: 28,565,397

90
points

Go to page 35 of the SM & follow the troubleshooting steps to determine the component that has failed.

I hope this is helpful to you!

Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful. Please feel free to submit further info for your question, if a solution was not provided. I appreciate the opportunity to serve you!

Related Sharp LC-C3742U Manual Pages

Service Manual - Page 1

... its original condition and only parts identical to be used for after sales service only. TopPage SUPPLEMENT ATTACHED LC-C3742U SERVICE MANUAL No. This Service Manual covers the modifications alone. SX6Y7LCC3742U LCD COLOR TELEVISION MODEL LC-C3742U In the interests of user-safety (Required by safety regulations in some parts. CONTENTS DIFFERENCES FROM BASE MODEL...

Service Manual - Page 2

... PARTS AND ACCESSORIES Please refer to a Parts list. Service Manual LC-C3742U Note - - - - - i LC-C3742U LDCI-CF3F74E2URENCES FROM BASE MODEL LIST OF CHANGED PARTS Ref. No. Description PWB ASSEMBLIES MAIN Unit R/C, LED Unit KEY Unit AV TERMINAL Unit POWER Unit LC-37D42U DUNTKD862FM04 DUNTKD909FM02 DUNTKD910FM02 DUNTKD999FM04 RDENCA198WJQZ CABINET AND MECHANICAL PARTS Please...

Service Manual - Page 3

... original circuit. Disconnect AC power before returning the monitor to...television have special safety-related characteristics. F7001 (250V 6.3A) • Use an AC voltmeter having with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be repeated... LSCA-CF37E42TUY PRECAUTION Service Manual LC-C3742U IMPORTANT SERVICE SAFETY PRECAUTION Service ...

Service Manual - Page 5

PRECAUTIONS FOR USING LEAD-FREE SOLDER LC-C3742U „Employing lead-free solder • "PWBs" of the soldering bit, it is alloyed with lead-free solder.... solder of it. However, Since the land may be easily corroded. When the tip of parts may be peeled off the power of the bit as it with steel wool or fine sandpaper. • Be careful when replacing parts with the lead-free ...

Service Manual - Page 6

... clearing those in stock) 2) In storing the component parts, protect and manage them against theft and disclosure. (For storing the service parts, service units, etc.) v LC-C3742U PRECAUTIONS IN SERVICING THE HDCP-KEY ROM Applied part: HDCP-KEY ROM IC8451 RH-IXB979WJQZY (updated ROM) The HDCP-KEY ROM shall be protected and...

Service Manual - Page 7

The contents are subject to be used for after sales service only. PartsGuide LC-C3742U PARTS GUIDE No. MODEL LC-C3742U CONTENTS [1] CABINET AND MECHANICAL PARTS [2] SUPPLIED ACCESSORIES REPLACEMENT ITEM) [4] SERVICE JIGS (USE FOR SERVICING) [3] PACKING PARTS (NOT Parts marked with specified ones for maintaining the ...

Service Manual - Page 9

...Button J 37" WIDE LCD Panel Module Unit X MAIN Shield Ass'y - Jack Indicator X Tray Chassis Ass'y - Tray Chassis J Wire Holder, x3 J Wire Holder - Rug Angle Bottom LR J Wire Holder LC-C3742U... Top X Rug Angle Bottom LR X Rug Angle Bottom LR Ass'y - AC AA BQ - N - Screw (for PANEL), x4 X No. Spacer, x7 J POP Label J Screw (for Front Cover), x3 X Rear Cabinet Ass'y -...

Service Manual - Page 12

... POWER Unit J Connecting Cord (PD (MI) 6pin 100cm) MAIN to POWER Unit J Connecting Cord (LA/LB 4p-8p 130cm) MAIN to INVERTER Unit Connecting Cord (LA 10p-14p 100cm) POWER to INVERTER Unit J Connecting Cord (LV 30pin 100cm) MAIN to LCD CONTROL Unit J Connecting Cord (SH 7pin 100cm) MAIN to LCD CONTROL Unit 6 N - - N - - N - - LC-C3742U...

Service Manual - Page 13

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. MEMO LC-C3742U COPYRIGHT © XXXX BYSHARP CORPORATION ALL RIGHTS RESERVED.

Service Manual - Page 14

..., without prior written permission of the publisher. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in Japan TQ2101-S MI. LC-C3742U COPYRIGHT 2007 BY SHARP CORPORATION ALL RIGHTS RESERVED.

Service Manual - Page 15

S47G2LC37D42U SUPPLEMENT LCD COLOR TELEVISION LC-37D42U LC-37D43U MODELS LC-C3742U In the interests of user-safety (Required by ... be restored to its original condition and only parts identical to the LC-37D42U/LC37D43U/LC-C3742U (S06X9LC32D42U/SX6Y9LC37D43U/SX6Y7LCC3742U) Service Manual. TopPage LC-37D42U/LC-37D43U/LC-C3742U SERVICE MANUAL No. OUTLINE In this Service Manual, only parts in...

Service Manual - Page 16

... volume up key once to display a flicker pattern. 7) Press the jig's UP/DOWN switch while looking at the screen to adjust the point so that the flicker is minimized (see Fig. 3). 8) After completing adjustment, press the WRITE switch and make sure the lamp of the WRITE button goes out. (Writing is complete when the lamp...

Service Manual - Page 17

PartsGuide LC-37D42U/LC-37D43U/LC-C3742U PARTS GUIDE LCD COLOR TELEVISION LC-37D42U LC-37D43U MODELS LC-C3742U CONTENTS [1] LCD MODULE Assembly Parts marked with specified ones for maintaining the safety and performance of the set . The contents are important for after sales ...

Service Manual - Page 19

... N AC N N AA AA AA AA J LCD Module Ass'y J Vessel (Top) J Vessel (Bottom) J Vessel (L, R), x2 J Panel Holder Ass'y J Spacer Ass'y, x2 J Reflection Sheet, x2 J Diffusion Panel J Lamp Holder-L J Lamp Holder-R J Lamp Unit, x9 J Lamp Holder (Bottom), x2 J Sheet Holder, x6 J Sheet Clip, x6 ... J Screw, x8 J Screw, x10 J Screw, x12 J Screw, x12 J Screw, x4 3 LC-37D42U/LC-37D43U/LC-C3742U NO.

Service Manual - Page 20

... in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. LC-37D42U/LC-37D43U/LC-C3742U COPYRIGHT © 2007 BY SHARP CORPORATION ALL RIGHTS RESERVED. TQ2186-S YT.