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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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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 !

Showing posts with label PHOTOCOPIER. Show all posts
Showing posts with label PHOTOCOPIER. Show all posts

Thursday, 14 March 2019

PANASONIC KX-MB783-BR _ SERVICE CODES - TROUBLESHOOTING - INITIALIZATION

PANASONIC KX-MB783-BR _ SERVICE CODES - TROUBLESHOOTING - INITIALIZATION


TO ENTER THE REMOTE PROGRAMMING MODE & CHANGING SERVICE CODES
If, after the call is connected, the customer describes the situation and it is determined that the problem can be corrected by making parameter changes, this function makes it possible to change parameters such as the user code and service code from another fax (using DTMF tones). Therefore, travel to the customer's location isn't required. However, it is not possible to change all the parameters remotely (PROGRAM MODE TABLE(P.98)). The function used to accomplish this is remote programming.
First, in order to check the current status of the service code parameter, print out the setup list (code: 991) and the service list (code: 999) from the customer's fax machine.
Based on this, the parameters for the desired codes can be changed.
The procedure for changing and listing parameters is described on ENTERING THE REMOTE PROGRAMMING MODE AND CHANGING SERVICE CODES. Also, before exiting the remote programming-mode, it is advisable to obtain a new list to confirm that the changes were made correctly.
Hint:  Since the connected telephone is in use during the remote programming mode, it may be helpful to ask the customer to switch to the speaker phone. This frees the customer from the need to remain right next to the fax while you are making parameter settings. When finished, inform the customer. Also note that in very noisy locations where the DTMF tones are not audible, the remote programming function will not work.
ENTERING THE REMOTE PROGRAMMING MODE AND CHANGING SERVICE CODES.
CLICK ON THE TABLES TO ZOOM IN 
TROUBLESHOOTING
Troubleshooting is for recovering quality and reliability by determining the broken component and replacing, adjusting or cleaning it as required. First, determine the problem then decide the troubleshooting method. If you have difficulty finding the broken part, determine which board is broken. (For example: the Main PCB, Sensor PCB, etc.) The claim tag from a customer or dealer may use different expressions for the same problem, as they are not a technician or engineer. Using your experience, test the problem area corresponding to the claim. Also, returns from a customer or dealer often have a claim tag. For these cases as well, you need to determine the problem. Test the unit using the simple check list on SIMPLE CHECK LIST(P.104). Difficult problems may be hard to determine, so repeated testing is necessary.
Determine the symptom and the troubleshooting method.
INITIALIZATION
There are two types of initialization, one is the short initialization (about 3 seconds) and the other is the long initialization (about 10 seconds). The short initialization makes the unit enter the standby mode. The long initialization makes the unit enter the standby mode after cleaning or detecting the rest of toner.
Posted By: FRANK at 04:54
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Thursday, 7 March 2019

CANON IR3300 ERROR CODES CAUSES AND REMEDIES

CANON iR3300 Error codes Causes and remedies

CANON iR3300

Error codes 
E000-0000
The reading of the main thermistor does not reach 30C 1 sec after the main power switch is turned on. Or, it does not reach 70C 2 sec thereafter
The fixing film unit is faulty. The main thermistor has an open circuit. The fixing heater has an open circuit. The main power supply PCB is faulty. The DC controller PCB is faulty. To reset the error, execute the following in service mode: COPIER>FUNCTION>CLEAR>ERR
1. Connector Is the connector of the fixing assembly connected? a. main power supply PCB (J8) <-> relay connector <-> heater b. DC controller PCB (J320) <-> relay connector <-> thermistor NO: Connect the connector.
2. Fixing film unit (thermistor) Check the interval between pin 1 and pin 2 and between pin 3 and pin 4 of the connectosr (4-pin) of the thermistor for electrical continuity. Is it W (open)? YES: The heater has an open circuit, or the thermal switch is open. Replace the fixing film unit.
3. Main power supply PCB, DC controller PCB Press the Start key. Is the drive voltage of the heater supplied by the connector J8 of the main power supply PCB? Main heater: between J8-1 (FSR1) and J8-5 (FSR COM) Sub heater: between J8-3 (FSR2) and J8-5 (FSR COM) YES: The heater drive power supply is faulty. Replace the main power supply PCB. NO: The thermistor control mechanism is faulty. Replace the DC controller PCB.
E001-0000
The main thermistor detects 250C or higher
The fixing film unit is faulty (i.e., the thermistor has a short circuit). The main power supply PCB is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service move: COPIER>FUNCTION>CLEAR>ERR.
1.Check the interval between pin 1 and pin 2 and between pin 3 and pin 4 of the connectors (4-pin) of the thermistor for electrical continuity. Is it 0 W (short circuit)? YES: The thermistor has a short circuit. Replace the fixing film unit. If the thermistor has a short circuit, the indication in service mode (COPIER>DISPLAY>ANALOG) will be as follows from the start: FIXC= 250°C for the main thermistor; FIX-E=310°C for the sub thermistor. 
2. Main power supply PCB, DC controller PCB Try replacing the main power supply PCB. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
E001-0001
The main thermistor or the sub thermistor detects overheating (hardware circuit detection)
The fixing film unit is faulty (i.e., the thermistor has a short circuit). The main power supply PCB is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service move: COPIER>FUNCTION>CLEAR>ERR
1.Check the interval between pin 1 and pin 2 and between pin 3 and pin 4 of the connectors (4-pin) of the thermistor for electrical continuity. Is it 0 W (short circuit)? YES: The thermistor has a short circuit. Replace the fixing film unit. If the thermistor has a short circuit, the indication in service mode (COPIER>DISPLAY>ANALOG) will be as follows from the start: FIXC= 250°C for the main thermistor; FIX-E=310°C for the sub thermistor. 
2. Main power supply PCB, DC controller PCB Try replacing the main power supply PCB. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
E001-0002
The sub thermistor detects about 295C or higher
The fixing film unit is faulty (i.e., the thermistor has a short circuit). The main power supply PCB is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service move: COPIER>FUNCTION>CLEAR>ERR.
1.Check the interval between pin 1 and pin 2 and between pin 3 and pin 4 of the connectors (4-pin) of the thermistor for electrical continuity. Is it 0 W (short circuit)? YES: The thermistor has a short circuit. Replace the fixing film unit. If the thermistor has a short circuit, the indication in service mode (COPIER>DISPLAY>ANALOG) will be as follows from the start: FIXC= 250°C for the main thermistor; FIX-E=310°C for the sub thermistor. 
2. Main power supply PCB, DC controller PCB Try replacing the main power supply PCB. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
E002-0000
The temperature of the fixing film is as follows:  has exceeded 100C, but does not reach 115C within 1 sec thereafter. has exceeded 140C, but does not reach 150C within 1 sec thereafter. has exceeded 160C, but does not reach 165C within 1 sec thereafter
The fixing film unit is faulty (i.e., the main thermistor TH1 has poor contact, or the fixing heater is faulty). The main power supply PCB is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service mode: COPIER>FUNCTION>FCLEAR>ERR.
1. State Turn on the power switch, and clear E002/E003. Thereafter, turn off and then on the power switch. Does the fixing heater operate? NO: See “The fixing heater fails to operate.”
2. Wiring Is the wiring from the DC controller PCB to the fixing film unit normal? NO: Correct the wiring.
3. Fixing film unit, DC controller PCB Try replacing the fixing film unit. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
E003-0000
The main thermistor reading is lower than 140C when paper is moved
The fixing film unit is faulty (i.e., the main thermistor (TH1) has poor contact or has an open circuit; or, the fixing heater is faulty). The main power supply PCB is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service mode: COPIER>FUNCTION>CLEAR>ERR
1. State Turn on the power switch, and clear E002/E003. Thereafter, turn off and then on the power switch. Does the fixing heater operate? NO: See “The fixing heater fails to operate.”
2. Wiring Is the wiring from the DC controller PCB to the fixing film unit normal? NO: Correct the wiring.
3. Fixing film unit, DC controller PCB Try replacing the fixing film unit. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.
E003-0001
An error in the rotation of the fixing film is detected. The reading of the main thermistor is 100C or higher and, in addition, the fixing film sensor does not detect the rotation of the film for 6 sec or more while the fixing motor is driven
The fixing film sensor (PS45) is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service mode: COPIER>FUNCTION>CLEAR>ERR
1. Wiring Are the wring and the connectors connected securely? DC controller PCB (J311) <-> relay connector <-> fixing film sensor NO: Connect the wiring and the connectors.
2. Fixing film sensor Check the fixing film rotation signal.When the fixing motor is rotating, is the film rotation detection signal sent by the fixing film sensor to the concoctor J311 of the DC controller PCB? Film rotation detection signal: 5V pulse signal between J311-A9 (FILM_ROT_D) and J311-A8 (GND); at intervals of 100 msec ON and 440 msec OFF NO: If the fixing film is normal, replace the sensor.
3. Fixing film unit, DC controller PCB Is there a fault in the fixing film edge rotation detection mechanism? YES: Replace the fixing film unit. NO: Replace the DC controller PCB.
E010-0000
After the main motor drive signal is generated, the clock signal does to arrive within 1.3 sec
The main motor (M2) is faulty. the DC controller PCB is faulty.
1. Connector Is the connector of the main motor connected? NO: Connect the connector.
2. Main power supply PCB Is the drive voltage (24 V) of the main motor supplied by the main power supply PCB? Main power supply PCB: between J202-1 (24VU1-SW) and J202-2 (OVU1) NO: Replace the main power supply PCB.
3. Main controller (M2), DC controller PCB Press the Start key. Is the lock signal of the main motor present at the connector J308 on the DC controller PCB? Lock signal: J318-A10 (MM_LOCK) YES: Replace the main motor. NO: Check the wiring; if normal, replace the DC controller PCB.
E014-000
After the fixing motor drive signal is generated, the clock signal does not arrive within 1.3 sec.
The fixing motor (M19) is faulty. The DC controller PCB is faulty.
1. Connector Is the connector of the fixing motor connected? NO: Connect the connector.
2. Main power supply PCB Is the drive voltage (24 V) of the fixing motor supplied by the main power supply PCB? Main power supply PCB: between J202-3 (24VU1-S) and J202-4 (OVU1) NO: Replace the main power supply PCB.
3. Fixing motor (M19), DC controller PCB Press the Start key. Is the lock signal of the fixing motor present at the connector (J312) on the DC controller PCB? Lock signal: J312-B4 (FSRM_LOCK*) the DC controller PCB change from 0 to about 5 V? YES: Replace the fixing motor. NO: Replace the DC controller PCB.
Posted By: FRANK at 04:39
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