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 !

Wednesday 6 March 2019

PIONEER AV RECEIVER VSX-918V - VSX-818V IPOD ERROR CODES AND SOLUTION – USB ERROR CODES – PROTECTION SYSTEM – FIRMWARE UPDATE – AV RECEIVER REPAIR AND SERVICE

PIONEER AV RECEIVER VSX-918V - VSX-818V IPOD Error codes and solution – USB error codes – Protection system – Firmware update – AV receiver repair and service

PIONEER VSX-918V - VSX-818V

iPod Error Message
When the abnormality occurred, the error messages are indicated.
Error I1
Communication Error
When the communication is not possible normally.
Solution
Disconnect a connector once, then connect a connector surely again after the main menu of the iPod was displayed.
Nevertheless, reset the iPod when the iPod does not operate normally.
Error I2
Protocol Ver.Error (in the Type 2 operation only)
When a version of the iPod software is old.
Solution
Update the iPod software to the newest version.
Error I3
Generation Error (in the Type 1 operation only)
When the non-support model for the iPod Mode Type 1 was connected.
When the non-support function will be executed.
When a version of the iPod software is old.
Solution
Change the iPod Mode to Type2.
Update the iPod software to the newest version.
Error I4
Loading Error
When there is no response from the iPod.
Solution
The power is shut off once, then the unit back on.
Reset the iPod.
Update the iPod software to the newest version.
No Music Track
No Music Track Cautuion
When a music track does not exist in the connected iPod.
Solution
Transfer a music track to the iPod.
When play a video track, turn on the iPod CTRL,
and playback a track by operating the main unit of the iPod.
No Track
No Music Track Cautuion
When a track does not exist in the selected category
Solution
Select another category.
USB ERROR CODES 
USB ERROR1
Detection of overcurrent to a USB device
Overcurrent (500 mA or more) is consumed at the connected USB device.
# Some USB devices, such as a portable HDD, need more current than that this unit supplies. (Use the AC adaptor for the connected USB device.)
# The USB power is short-circuited.
USB ERROR2
Detection of a medium not supported
A USB device that this unit does not support (other than the Mass Storage Class) is connected (such as a mouse, printer, or digital camera).
# Connect a mass storage class USB device.
USB ERROR3
Communication error with the system microcomputer
Communication between TCC8600-00X-EA-UG (IC401) and PEG467/469A (IC9001) failed.
# Defective connection (connectors) inside this unit
# See STEP 3 of Troubleshooting.
If a USB ERR message lights in the display, try following the points below:
# Switch the receiver off, then on again.
# Reconnect the USB device with the receiver switched off.
# Select another input source (like DVD/BD), then switch back to USB.
# Use a dedicated AC adapter (supplied with the device) for USB power.
AMPLIFIER SYSTEM PROTECTION OPERATION
DC-abnormality detection
DC detection is only enabled 2 seconds after power-on. If there is a fault in the power amplifier or a high-level signal lower than 5 Hz is input, the DC_DET port becomes “L”.
If the “L” is detected, the microprocessor will perform as following.
In the case of simultaneous detection with the overload protection circuit, DC-abnormality detection is performed preferentially to overload detection.
When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is turned off, then "AMP_ERR" flashes on the display.
The abnormality continues for 3 seconds.
The power is shut off.
Power key not effective and POWER LED blinks (only for VSX-918V).
However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on.
1 TESTMODE ON (A55F+A55F)
2 When power off, push TUNE+ key + AUTO SURR/DIRECT key continuously 2sec.
When a DC abnormality is detected and the power is shut off.) Any other key input from front panel or remote control will not be detected.
Overload detection
If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becomes “L”. If the “L” is detected, the microprocessor will perform as following flow chart.
When an overload is detected, A.MUTE* is turned on, speaker relay is turned off, then "OVERLOAD" flashes on the display.
The abnormality continues for 3 seconds.
The power is shut off.
HOW TO UPDATE FIRMWARE
Necessary Tools
# USB Flash Memory which is saved the firmware file ("player.rom" file).
Note: In rare cases, it is not able to update the firmware depending on the type of USB flash memory.
In such a case, try to use other model of USB flash memory.
Procedures
1. Tuner VOL to "-- dB".
2. Turn off the set.
3. Press "Standby/On" and "PHASE CONTROL" keys simultaneously for about 5 secs.
"USB" or "IPOD" will be displayed on FL, soon after that "WAITING" display will appear.
Then after about 20 secs, the current USB firmware version will be shown.
4. Insert the USB memory device containing latest USB firmware to the USB slot on front panel.
Soon "UPDT 000" will appear on FL, followed by the progress counting down.
5. When it is finished, "COMPLETE" will appear on FL.
6. Turn off the set, then turn it on again.
7. You may check the version by turning the set to off, then pressing "Standby/On" and "PHASE CONTROL" keys simultaneously for about 5 secs.
Note:
# Do NOT reconnect the USB flash memory which is saved the "player.rom" file.
# Do NOT change the function setting or turn off the power during step 5 through 7.
If you do, the updating is failed and it is required to replace the USB flash ROM on the USB module.
Posted By: FRANK at 05:52
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