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 !

Wednesday 20 February 2019

SONY KV21CL1K KV21FQ10B SERVICE MODE - LED BLINKING CODES

SONY KV21CL1K KV21FQ10B SERVICE MODE - LED BLINKING CODES


SONY  KV21CL1K - Service mode and LED blinking codes
APPLICABLE TO SONY-KV21FQ10B_21FQ10E_21FQ10K_21CL10B_21CL10E_21CL10K_21CL10U_21CL1K
 
STOPPING THE STANDBY INDICATOR FLASH

  • Turn OFF the Power switch on the TV main unit or unplug the power cord from the outet to stop standby indicator from flashing.
SELF DIAGNOSTIC SCREEN DISPLAY
  • For errors with symptoms such as 'power sometimes shuts off' or 'screen sometimes go off' that cannot be confirmed, it is possible to bring up past occurrences of failure on the screen for confirmation.
TO BRING UP SCREEN TEST
  • In standby mode, press buttons on the remote commander sequentially in rapid succession  as [Display > Channel-5 > Volume (-) > Power > / TV].  Note that, the volume (-) should be pressed.  If you press Volume (+), the set will enter into Service Mode, not come up screen test mode
The following screen will be displayed indicating the error count.
------------------------------------------------------
2:                                                0
3:                                                N/A
4:                                                0
5:                                               1
8:                                               0
101:                                           N/A
-----------------------------------------------------
Numerical '0' means that no fault was detected.
Numerical '1' means the number of fault occurrence (1 to 255)

HANDLING THE SELF DIAGNOSTIC SCREEN DISPLAY
  • Since the diagnostic result displayed on the screen are not automatically cleared, always check the self diagnostic screen during repairs.  When you have completed repairs, clear the  result display to "0".
  • Unless the display is cleared to "0", the self diagnostic fucntion will not be able to detect subsequent faults after completion of repairs.
CLEARING THE RESULT DISPLAY
  • To clear the result display to "0", press buttons on the remote commander subsequent as shown below when the self-diagnostic screen is being displayed.
  • [8 => 0]
QUITTING SELF DIAGNOSTIC SCREEN
  • To quit the entire self diagnostic screen , turn OFF the power switch on the remote commander or the main unit.
ENTERING SERVICE MODE
  • To enter service mode, press [Display => Channel-5 => Volume (+) => Power/TV]
  • 'TT' will appear in the right upper corner of the screen.  Other status information will also displayed.
  • Press "Menu" on the remote control to obtain service menu on the screen.
  • The screen only displays '8' items at one time.  To move to the corresponding item use the "UP" or "DOWN" buttons on the remote control.
  • Press [Right] or [Left] button, or "Enter" button on the remote control to enter into the required item.
  • The screen only display '12' items at one time.  To move the corresponding item, use 'Up/Dn' button on the remote control.
  • Press [Right] to increase of [Left] to decrease the data value to selected item.
  • Press the "Menu" button on the remote control to 'Quit' from service menu.  The screen will display 'TT----'. 
  • To 'Exit from 'TT-----' menu, press [0] twice. 'TEST', 'TV' or switch the TV into standby mode.
STANDBY LIGHT BLINKING CODES


Diagnosis item description
No. of Timer/Standby indicator flashes


Self-diagnostic display
Probable cause location
Detected symptoms
Power does not turn ON
Does not light
==========
# Power cord is unplugged.  # Fuse burned(F600) [A-Board]
# Power does not come On.  # No power is supplied on TV.  # AC Power supply is faulty

+B over current {OVP)
2 times
2:0 or 2:1 to 255
# H-Out (Q805) is shorted. [A-Board].  # IC751 is shorted [C-Board]

# Power does not come on.  # Load on power line is shorted.
V-Protect
4 times
4:0 or 4:1 to 255
# +13V is not supplied.[A-Board]  # IC804 is faulty [A-Board]
# Has entered standby state after horizontal raster.  # Vertical deflection pulse is stopped.  # Power line is shorted or power supply is shorted.

IK {AKB}
5 times
5:0 or 5:1 to 255
# Video out (IC1545) is faulty [A-Board].  # IC001 is faulty [A-Board].  # Screen (G2) is improperly adjusted.

# No raster is generated.  # CRT cathode current detection reference pulse output is small.
HV protect
8 times
8:0 or 8:1 to 255
# IC604 is faulty. # IC602 is faulty/
# No power supply to CRT anode.  # No raster is generated.