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!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday, 11 March 2019

JVC DR-M10SEF SERVICE MODE

JVC DR-M10SEF SERVICE MODE

 SERVICE MODE 

JIG Mode 
The following remote control units are required to set and cancel JIG mode.
For setting : a remote control unit attached to product.
For cancellation : JIG remote control unit (part number : PTU94023B)
When the main body is set to JIG mode and when the main body is under JIG mode, the remote control unit attached to product operates only in "Remote Control Code 1". Since main body is in "Remote Control Code 3" when it is shipped and just after its batteries
are changed, "Remote Control Code 3" needs to be changed to "Remote Control Code 1."
< Changing Remote Control Code >
(1) Switch TV/CABLE/DBS/DVD Switch to "DVD"
(2) Press the numeric button "1" of the remote control unit while pressing the "SET UP" button of the remote control unit. Then,
press the "ENTER" button, and then release the "SET UP" button.
(3) Press the "PLAY" button of the main body for five seconds or longer while the main body is in stand-by mode, and a current
remote control code of the main body is displayed in FL indicator of the main body.
(4) While keeping the state of (3), press the "STOP" button of the remote control unit toward the main body.
(5) When FL indicator displays "DVD1," it means that the Remote Control Code has been changed to "1."
#This product has remote control codes of 1, 2, 3, and 4.
#The remote control codes "DVD 1, 2, 3, and 4" of product are the same as the remote control codes "A, B, C, and D" of video cassette recorders manufactured in JVC.
Setting JIG mode
To display SYSTEM INFO or to upgrade firmware, the main body needs to be set to JIG mode.
(1) Turn the main body ON.
(2) Press the buttons of the remote control unit attached to product in the following order : "SET UP" → "2" → "8" → "ENTER"
(3) When a colon ":" between "hour" and "minute" of a clock in FL indicator blink, it means that the main body has been set to JIG
mode properly.
(4) Turn the main body OFF, and then turn it ON again.
*Once the main body is set to JIG mode, the JIG mode cannot be cancelled even if the power cord is pulled out from the wall
socket.
Canceling JIG mode
(1) Transmit "43-9D" to the main body by using JIG remote control unit.
(2) A colon ":" between "hour" and "minute" of a clock in FL indicator light.
(3) Turn the main body OFF, and then turn it ON again.
NOTE:
After repair work, be sure to cancel JIG mode. Before returning product to a user, confirm that a colon ":" between "hour" and
"minute" of a clock in FL indicator light.
Displaying SYSTEM INFO
SYSTEM INFO contains information on firmware version of the main body and the mechanism drive, and an initialize execution menu.
(1) Set the main body to JIG mode.
(2) Transmit "43-8B" to the main body by using JIG remote control unit.
(3) SYSTEM INFO menu is displayed in the television screen.
(4) To move cursor in SYSTEM INFO, use the UP, DOWN, LEFT AND RIGHT BOTTON  of a remote control unit attached to product..
(5) To quit the SYSTEM INFO menu, transmit "43-8B" to the main body by using JIG remote control unit.
(6) Cancel JIG mode.
Upgrading firmware of the main body
#Firmware upgrade disk supports CD-R media.
(1) Download a compressed file of the latest firmware in "optical disc" page in JS-NET.
(2) Decompress the file, and a file "fwupdate.bin" is generated.
(3) Write "fwupdate.bin" in CD-R in ISO9660 format.(Don’t use Packet Write software. Write in UDF format.)
(4) Set the main body to JIG mode.
(5) Transmit "43-70" to the main body by using JIG remote control unit.
(6) "UPDATE" appears in FL indicator. Load disk for upgrade on the tray, and close the tray.
(7) Upgrade processing is started automatically.
(8) Then, "FW UPDATE" appears in FL indicator. It takes approx. 6 minutes at maximum to upgrade firmware.
(9) The tray is ejected. Then, take out the disk and close the tray.
(10) Turn the main body OFF, and pull out the power cord from the wall socket. Then, plug the power cord into the wall socket.
(11) "LOADING" of FL indicator disappears. Then, turn the main body ON.
(12) Display the SYSTEM INFO menu, and check the version of the firmware.
(13) Cancel JIG mode.
ATTENTION :
Firmware may sometimes not be upgraded successfully.
If firmware is not upgraded successfully, the tray opens, and "ERROR" appears in FL indicator.
 If firmware is upgraded successfully, the tray opens, and "OPEN" appears in FL indicator. If the power cord is pulled out from the wall socket while "ERROR" appears, data in the flash memory is destroyed and the main body cannot start: the flash memory needs to be replaced. After upgrading procedure, pay enough attention to FL indicator when the tray opens. When "ERROR" appears, upgrade firmware again in the following way to restore the firmware.
(1) Transmit "43-70" to the main body by using JIG remote control unit while the tray opens.
(2) When "UPDATE" appears in FL indicator, close the tray and make the main body read the disk. Upgrading starts.
(3) After (2), perform upgrading procedure (4) - (10) of Upgrading firmware of the main body above.
The setting method of a region code
A region code should be set after a DVD recorder mechanism unit is replaced.
While a DVD recorder mechanism unit is in a warehouse as a stock, a region code of the drive unit is not determined.
Only replacement of a DVD recorder mechanism unit may cause abnormal playback of Disc.
Set a region code of a DVD recorder mechanism unit in the following procedure.
(1) Replace a DVD recorder mechanism unit.
(2) Turn POWER switch of the unit ON.
(3) Set the main body to JIG mode.
(4) Insert a DVD-RAM disc in the unit to make the unit read the DVD-RAM disc.(The DVD-RAM disk used in this procedure is not a
disk for upgrade. If it is a DVD-RAM disk, it is good anything.)
(5) Send "43-F2" to the unit by using JIG remote control unit.
(6) "REGION 2" is displayed on FL display.
(7) Set the unit to STANDBY.
(8) Turn the POWER switch ON.
(9) To cancel JIG MODE, send "43-9D" to the unit by using JIG remote control unit.
(10) Colon is displayed on a clock on FL display.
(11) Setting is completed in the procedure above.
HOW TO REMOVE THE DISC
A Disc can be taken out manually even when the main body is turned off.
(1) Open the front door.
(2) Pass a thin wire through a hole in the DVD recorder mechanism unit.
(3) The disc tray comes out slightly. Take out the disc tray manually.
Posted By: FRANK at 13:11
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