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Sharp LC-C4655U Support Question

Sharp LC-C4655U Support Question

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Question posted by dcanoa68 on January 19th, 2021

No Picture On Lc-c4665u

Power went out. Turned TV on it was on for a few seconds then shut off. Power and opc light flash then power flashes

Current Answers

Answer #1: Posted by Odin on January 19th, 2021 4:48 PM
This answer was accepted by the poster of the original question.
Odin

Member since:
April 10th, 2010

Points: 41,236,700
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Step 1
Cycle through the TV's video inputs to verify that your TV is set to the right one. For instance, if you are attempting to use a digital cable converter box that is plugged into the Video 1 input and the TV is set to a Video 2 input that has nothing plugged into it, the TV will not display any picture or sound. To cycle through the inputs, use the input selection button, typically labeled "input," "source," "TV/video" or the like.

Step 2
Reseat the video and audio input connections to verify that a loose cable is not causing the TV's loss of signal. If you have a coaxial cable connected from your wall cable jack directly into the TV, it may have come loose thereby eliminating all picture and sound on the TV. Locate the connection cable or cables of whatever device you're attempting to watch, and unplug/replug them from where they plug into the TV.

Step 3
If the above does not solve, look in your manual for instructions for a hard reset.

* * * *

If the problem persists (or if you require further explanation), and if your manual provides no help, you'll have to obtain a walk-through from Sharp: use the contact information at https://www.contacthelp.com/sharp/customer-service.


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.

Related Sharp LC-C4655U Manual Pages

Service Manual - Page 1

... to be used . OVERALL WIRING DIAGRAM [1] OVERALL WIRING DIAGRAM 6-1 CHAPTER 7. OUTLINE This model is based on the LC-42D65U and is changed some countries) the set . TopPage LC-C4655U SERVICE MANUAL No. S08S2LCC4655U LCD COLOR TELEVISION MODEL LC-C4655U In the interests of the set should be restored to its original condition and only parts identical...
Service Manual - Page 2

... a Parts list PACKING PARTS AND ACCESSORIES Please refer to the LC-42D65U (No. For the other points, refer to a Parts list LC-C4655U (No. Description PRINTED WIRING BOARD ASSEMBLIES R/C, LED Unit KEY Unit MAIN Unit POWER Unit LC-42D65U (No. Some parts changed - No. LC-C4655U LOCU-C4T6L55IUNE AND DIFFERENCES FROM BASE MSOerDvEicLe Manual OUTLINE This model...
Service Manual - Page 3

...between the chassis and other hazards. Disconnect AC power before returning the monitor to all safety checks and...by " " and shaded areas in LCD color television have the same safety characteristics as non-metallic control... be corrected before servicing. LSCA-CF46E55TUY PRECAUTION Service Manual LC-C4655U IMPORTANT SERVICE SAFETY PRECAUTION Service work should be attempted. ...
Service Manual - Page 5

...bit as you are not familiar with how to turn on the PWBs and service manuals. However, Since the land may be peeled off the power of the soldering bit, it with steel wool ... a dedicated soldering bit, if you confirm the steady soldering condition. PRECAUTIONS FOR USING LEAD-FREE SOLDER LC-C4655U „Employing lead-free solder • "PWBs" of time. If a different type of the ...
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-C4655U PRECAUTIONS IN SERVICING THE HDCP-KEY ROM Applied part: HDCP-KEY ROM IC8451 RH-IXC318WJQZY (updated ROM) The HDCP-KEY ROM shall be protected and...
Service Manual - Page 7

... (FOR OTHERS) Power Consumption 254 W (0.4 W Standby with AC 120 V) Weight TV + stand TV only 49.6 lbs./22.5 kg 41.9 lbs./19.0 kg Dimension (W H D) TV + stand TV only 43 53/64...LC-C4655U 46" Class (45 63/64" Diagonal) Advanced Super View & BLACK TFT LCD) Resolution 2,073,600 pixels (1,920 1,080) TV-standard (CCIR) American TV Standard ATSC/NTSC System VHF/UHF VHF 2-13ch, UHF 14-69ch TV...
Service Manual - Page 8

LC-C4655U LCC-HC4A655PUTER 2. OPERATION MANUAL [1] OPERATION MANUAL Part Names TV (Front) * OPC: Optical Picture Control TV (Rear/Side) Service Manual Remote control sensor OPC sensor* OPC indicator SLEEP indicator POWER indicator POWER button MENU button INPUT button Channel buttons (CH / ) Volume buttons (VOL / ) AC INPUT terminal INPUT 7 terminal (HDMI) DIGITAL AUDIO OUTPUT terminal INPUT ...
Service Manual - Page 9

...control unit, point it at the TV. 2 - 2 Part Names Remote Control Unit 1 2 3 4 5 6 7 8 9 10 LC-C4655U 1 POWER: Switch the TV power on the screen. 20 10 EXIT: Turn off the menu screen. 11 DISPLAY...channel. 17 ENT: Jumps to a channel after selecting with the 0-9 buttons. 18 INPUT: Select a TV input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4, INPUT 5, INPUT 6, INPUT 7) 19 PC: Quickly ...
Service Manual - Page 10

... in an unstable installation and may result in accident or injury. Attach the base to the operation manual of the TV. SHARP bears no responsibility for the stand unit onto the box. LC-C4655U QUICK REFERENCE Attaching/Detaching the Stand Before attaching (or detaching) the stand, unplug the AC cord from being damaged...
Service Manual - Page 11

... not a malfunction, and the unit will recover when the temperature returns to malfunction. No picture No sound The TV sometimes makes a cracking sound. If the indicator on the TV does not light up, press POWER on ? Has the power been turned on the TV. Are batteries inserted with new batteries.) Are you using it in "Output Select"? Is...
Service Manual - Page 12

... Mode Digital Noise Reduction Monochrome Range of OPC Reset Audio Menu Treble Bass Balance Surround Bass Enhancer Reset Power Control Menu Power Saving No Signal Off No Operation Off ...depending on the selected input source. 2 - 5 LC-C4655U On-Screen Display Menu Menu Items For TV/INPUT 1/2/3 Mode Picture Menu OPC Backlight Contrast Brightness Color Tint Sharpness Advanced C.M.S.-Hue C.M.S.-...
Service Manual - Page 14

Remove the 4 lock screws and detach the Stand. 2. Remove the 1 lock screw. 4. LC-C4655U LCC-HC4A655PUTER 4. REMOVING OF MAJOR PARSTeSrvice Manual [1] REMOVING OF MAJOR PARTS 1. Rear Cabinet 4 Front Cabinet 4 2 3 1 Stand 4 - 1 Remove the 4 VESA Hole Covers. 3. Remove the 4 lock screws, 9 lock screws and detach the Rear Cabinet.
Service Manual - Page 15

Detach the KEY Unit Ass'y. 9. Remove the 1 lock screw and detach the Bottom Cover. 6. Detach the R/C, LED Unit, and disconnect RA-Wire. 8. LC-C4655U KEY Unit 9 KM 8 KEY Button Cover 7 RA SP 6 RA R/C, LED Unit Speaker-R SP 7 6 Bottom Cover 5 SP Speaker-L 6 4 - 2 Detach the KEY Unit from the KEY Button ...
Service Manual - Page 16

LC-C4655U 10.Remove the 2 lock screws and detach the Side AV Cover. 11.Remove the 11 lock screws, 4 lock shafts, 3 lock screws, 2 lock screws and detach the Main Shield. 11 11 11 11 Main Shield Side AV Cover 10 4 - 3
Service Manual - Page 17

12.Disconnect all the connectors from all the PWBs. LC-C4655U KM 12 LP PD LW LB2 LB1 PD 12 PL LB2 12 LA LA LP LW PL 12 4 - 4
Service Manual - Page 18

LC-C4655U 13.Remove the 7 lock screws and detach the MAIN Unit, Heat Sink Ass'y. 14.Remove the 6 lock screws and detach the POWER Unit Ass'y. MAIN Unit 13 13 Heat Sink Ass'y Power PWB Holder 14 POWER Unit 4 - 5
Service Manual - Page 19

15.Remove the 16 lock screws and detach the Panel Support Angle. 16.Remove the 10 lock screws and detach the LCD Panel Module. 15 Panel Support Angle LC-C4655U 15 16 LCD Panel Module 16 4 - 6
Service Manual - Page 20

... Memory reader/writer or PC with power button pressed down after 5 seconds, unpress the power button. 4. Follow the steps below appears within 20-40 seconds. Unplug the AC cord. 2....software, monitor microprocessor software, and LCD controller software can be damaged beyond recovery. 2.1. LC-C4655U LCC-HC4A655PUTER 5. The followings are set to upgrade the software 1. Copy the file LAKEAxxx...
Service Manual - Page 25

...READ Collected color data setting for VIC READ Signal type setting for VIC READ Picture level acquisition function CVBS and TUNER signal level adjustment CVBS signal level adjustment ... test (10ch) Tuning test and VCHIP test (15ch) Component 15K picture level adjustment (main) Component 33K picture level adjustment (main) LC-C4655U Remarks (adjustment detail, etc.) Refer to *1 under the list for...
Service Manual - Page 26

LC-C4655U Page 7 8 9 10 11 12 13 14 Line 1 2 3 4 5 6 7 8 9 10 1 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Item ANALOG...MID4 CD MID5 CD MID6 CD MAX CALC RESET VAL1 VAL2 VAL3 VAL4 VAL5 VAL6 Description Analog RGB picture level adjustment Remarks (adjustment detail, etc.) VCOM adjustment value Standard value 1 Standard value 2 Standard ...

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