REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday, 2 February 2019

PANASONIC CT-13R18B, CT-13R38S, CT-13R28W HOW TO ENTER THE ADJUSTMENT MODE, ADJUSTMENTS AND CIRCUIT DIAGRAM

Panasonic CT-13R18B, CT-13R38S, CT-13R28W How to enter the adjustment mode, adjustments and circuit diagram

Universal remote control set-up code list for Panasonic TVs: 0016 0032 0033 0049 0054 0075 0099 0101 0104 0107 0110 0119 0143 0151 0152 0161 0166 0207 0249 0304 0305 0306 0396 0420 0461 0611 0631 0633 0692
Service mode entry procedure, and adjustments
On-Screen Display Adjustment
In the condition of NO indication on the screen.  Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen.
Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options.
Press the ACTION button on the remote control to end the adjustments.
CUT OFF (RF)
Adjust the unit to the following settings.
R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64, B.BIAS=64, BRIGHTNESS=120, CONTRAST=40.
Place the set with Aging Test for more than 15 minutes.
Activate the adjustment mode display and press the channel button (01) on the remote control to select "CUT OFF".
Adjust the Screen Volume until a dim raster is obtained.
WHITE BALANCE (RF)
NOTE: Adjust after performing CUT OFF adjustment.
Place the set with Aging Test for more than 10 minutes.
Receive the gray scale pattern from the Pattern Generator.  Using the remote control, set the brightness and contrast to normal position.
Activate the adjustment mode display and press the channel button (10) on the remote control to select “R. BIAS”.
Press the CH. UP/DOWN button on the remote control to select the “R. BIAS”, “G. BIAS”, “B. BIAS”, “R. DRIVE” or “B. DRIVE”.
Adjust the VOL. UP/DOWN button on the remote control to whiten the R. BIAS, G. BIAS, B. BIAS, R. DRIVE, and B. DRIVE at each step tone sections equally.
Perform the above adjustments 5 and 6 until the white color is looked like a white.
FOCUS (RF)
Receive a broadcast.
Turn the Focus Volume fully counterclockwise once.
Adjust the Focus Volume until picture is distinct.
HORIZONTAL PHASE (RF)
Receive the center cross signal from the Pattern Generator.
Activate the adjustment mode display and press the channel button (05) on the remote control to select "H.PHAS".
Press the VOL. UP/DOWN button on the remote control until the right and left screen size of the vertical line becomes the same.
VERTICAL SIZE (RF)
Receive the cross hatch signal from the Pattern Generator.
Using the adjustment control, set the brightness and contrast to normal position.
Activate the adjustment mode display and press the channel button (06) on the remote control to select "V.SIZE".
Press the VOL. UP/DOWN button on the remote control until the rectangle on the center of the screen becomes square.
Receive a broadcast and check if the picture is normal.
VERTICAL SHIFT (RF)
Receive the center cross signal from the Pattern Generator.
Activate the adjustment mode display and press the channel button (07) on the remote control to select "V.SFT".
Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shadow mask.
OSD HORIZONTAL (RF)
Activate the adjustment mode display.
Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum.
MICON, Chroma, Tuner schematic [Main PWB] S24C02BDP-1A, OEC7094A, ENG36A01G(Tuner)
POWER (SMPS)
DEFLECTION AND CRT BASE CARD – AN5522, TT2140LS-YBC11(Horizontal scan output transistor), FNI-14B002(LOT), A34AGT13X98(L) Picture tube
Voltage chart
Click on the pictures to magnify
BRIGHTNESS MANUAL (RF, AV)
Activate the adjustment mode display of and press the channel button (13) on the remote control to select "BRI.CENT".
Press the VOL. UP/DOWN button on the remote control until the brightness step No. becomes "120".
Receive a broadcast and check if the picture is normal. Press the TV/VIDEO button on the remote to set to the AV mode.
SUB TINT/SUB COLOR (RF, AV)
Receive the color bar pattern. (RF Input)
Activate the adjustment mode display and press the channel button (22) on the remote control to select "TINT".
Connect the oscilloscope to TP023.
Press the VOL. UP/DOWN button on the remote control until the section "A" becomes as straight line.
Press the channel button (19) on the remote control to select "COL. CENT".
Connect the oscilloscope to TP022.
Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 5 scales on the screen of the oscilloscope.
Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110% of the white level.
Receive the color bar pattern. (Audio Video Input) Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments.
SUB CONTRAST (RF, AV)
Activate the adjustment mode display and press the channel button (17) on the remote control to select "CONT.MAX".
Press the VOL. UP/DOWN button on the remote control until the contrast step No. becomes "45".
Receive a broadcast and check if the picture is normal.
Press the TV/VIDEO button on the remote to set to the AV mode. Then perform the above adjustment
Posted By: FRANK at 08:29
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