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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or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

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 LASER-PRINTER. Show all posts
Showing posts with label LASER-PRINTER. Show all posts

Saturday, 14 March 2020

BROTHER LASER MFC PRINTER – ERROR MESSAGES, HOW TO ENTER THE MAINTENANCE MODE, SERVICE MODE FUNCTION DETAILS

Applicable to Laser printer Brother DCP7055, 7055W, 7057, 7057E, 7057W – DCP 7060D, 7065DN, DCP7070DW/HL, 2280DW – MFC7060, 7060N, 7362N, 7365DN, 7460DN – MFC 7470D. 7860DN, 7860DW
Error messages and codes which the incorporated self-diagnostic
function of the machine will display if any error or malfunction occurs. If any error message appears, refer to this chapter to find which parts should be checked or replaced.
How to Enter the Maintenance Mode
Press the Menu button and then the Start button while the machine is in the ready state.
Next, press the [UP] button four times to enter the maintenance mode.Error codes, 
[Operation using Menu, *, 2, 8, 6 and 4 buttons is also available.]
The machine beeps for one second and displays “ || MAINTENANCE ||| ” on the LCD, indicating that it is placed in the initial state of the maintenance mode, a mode in which the machine is ready to accept entry from the buttons.
To select any of the maintenance mode functions shown below to enter the maintenance mode that you want to use using the buttons.
To exit from the maintenance mode and switch to ready state, press the 9 button twice in the initial state of the maintenance mode.
In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 99” appears on the LCD. Then press the OK button, and the machine returns to the ready state.
When the Stop/Exit button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode.
To Enter the End User-accessible Maintenance Mode
Basically, the maintenance-mode functions listed in the next page should be accessed by service personnel only. However, you can allow end users to access some of these under the guidance of service personnel by phone, for example.
The end user-accessible functions are shaded in the table given on the next page. (codes 06, 09, 10, 11, 12, 25, 43, 45, 52, 53, 54, 77, 80, 82, 87, 88 and 91)
Function code 10 accesses the worker switches, each of which has eight selectors.
The service personnel should instruct end users to follow the procedure given below.
Press the Menu, Start, Menu and [UP] buttons in this order when the machine is in the ready state. “MAINTENANCE 06” appears on the LCD.
Press the [UP/DN] button to display the desired maintenance code on the LCD. Then press the OK button.
To switch the machine back to the ready state, press the Stop/Exit button. When each of the user-accessible functions is completed, the machine automatically returns to the ready state.
Maintenance mode functions
EEPROM parameter initialization (Function code 01, 91)
This function initializes the setting values of the operation parameters, user switches, and worker switches (WSW) registered in the EEPROM.
Entering function code 01 initializes almost all of the EEPROM areas, but entering 91 does not initialize some areas, as listed below.
Operating Procedure
Press the 0 and 1 buttons (or the 9 and 1 buttons according to your need) in this order in the initial state of the maintenance mode. In the case of the model without the numeric keys; Press the or button. The “MAINTENANCE 01” appears on the LCD (or the
“MAINTENANCE 91” appears on the LCD to your need). Then press the OK button. The “PARAMETER INIT” appears on the LCD.
Upon completion of parameter initialization, the machine returns to the initial state of the maintenance mode.
Note: Function code 01 is for service personnel. Function code 91 is for user support.
Printout of scanning compensation data (Function code 05)
The machine prints out the brightness level data for scanning compensation.
Be sure to execute this operating procedure not immediately after the power is turned ON, but after conducting the document scanning operation at least once in scanning.
Since the machine initializes the brightness level data and obtains the standard value for document scanning compensation when starting scanning the document, the correct data for compensation cannot be printed out even if this operation is implemented without scanning the document.
The print result varies depending on whether implementing color scanning or black and white scanning immediately before this operating procedure. Make sure the brightness level data you want to print and implement the operation below.
For white and black scanning, copy the document. For color scanning, implement color scanning of the document.
Press the 0 and 5 buttons in this order in the initial state of the maintenance mode. In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 05” appears on the LCD. Then press the OK button. The “PRINTING”
will appear on the LCD, and the equipment prints out the scanning compensation data list  containing the following:
Black and white/color scanning
[In the case of the black and white scanning, the output data (B) and (R) are invalid.]
LED CURRENT DATA 1 Byte
b) LED pulse data 1(UP) (G) 2 Bytes
c) LED pulse data 1(DOWN) (G) 2 Bytes
d) LED pulse data 1(UP) (B) 2 Bytes
e) LED pulse data 1(DOWN) (B) 2 Bytes
f) LED pulse data 1(UP) (R) 2 Bytes
g) LED pulse data 1(DOWN) (R) 2 Bytes
h) REFH data 1 Bytes
i) Background color compensated data 1 Byte
j) Black level data by previous scanning pixel count
k) White level data (G) by previous scanning pixel count
l) White level data (B) by previous scanning pixel count
m) White level data (R) by previous scanning pixel count.
Placement of scanner unit in position for transportation (Function code 06)
This function is to move the scanner unit in position for transportation located at the left end.
When you fix the machine and check its operation, you need to perform this function last before packing and shipping.
[to perform this function if possible before packing and shipping their FAX machine to a sales agent or a service dealer for the purpose of repair.]
Press the 0 and 6 buttons in this order in the initial state of the maintenance mode. In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 06” appears on the LCD. Then press the OK button. The scanner unit
moves to the designated position for transportation located at the left end. The “MAINTENANCE 06” is displayed until the scanner unit is placed in position. When the document scanner unit is placed in the position, the “SCAN LOCKED” appears on the LCD.
When the Stop/Exit button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode.
When the document scanner unit fails to move to the transport position or when the maintenance mode: code 06 is executed while a reading error occurs, “SCAN LOCK ERROR” appears.
After moving the scanner unit to the transport position, you cannot perform the scanning operation such as copy.
ADF performance test (Function code 08)
The machine counts the documents fed by the automatic document feeder (ADF) and counts the scanned document pages and displays the result on the LCD.
Load documents. (Do not exceed the paper capacity of the ADF.) “DOC.READY” is displayed on the LCD.
Press the 0 and 8 buttons in this order.
While counting the documents, the machine feeds them in and out, displaying the number of pages on the LCD as shown below.
ADF CHECK P01 [Current count (1st page in this example)]
When the Stop/Exit button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode.
Monochrome image quality test pattern (Function code 09)
This function allows you to print various monochrome test patterns and check the quality and if there is any image loss.
Press the 0 and 9 buttons in this order in the initial state of the maintenance mode.
In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 09” appears on the LCD. Then press the OK button.
Printing of the monochrome image quality test pattern starts, and when printing is finished, the machine beeps for one second and returns to the initial state of the maintenance mode.
Quality test pattern
Worker switch (WSW) setting and printout (Function code 10, 11)
The machine incorporates the following worker switch functions which may be activated with the procedures using the buttons on the control panel. The worker switches have been set at the factory in conformity to the codes of each country. Do not disturb them unless necessary.
Some of these switches are disabled according to the model and specifications.
Press the 1 and 0 buttons in this order in the initial state of the maintenance mode.
In the case of the model without the numeric keys; Press the [up/dn] button. The “MAINTENANCE 10” appears on the LCD. Then press the OK button.
The machine displays “WSW00” on the LCD and becomes ready to accept a worker switch number.
Enter the desired number from the worker switch numbers (01 through 78). The following appears on the LCD. In the case of the model without the numeric keys; Press the [up/dn] button. Select the desired worker switch number.
Enter a value to be set (0 or 1) using the 0 and 1 buttons. In the case of the model without the numeric keys; If press the UP button, it is changed to “1”. And press the DN button, it is changed to “0”. Select the value by this method.
Press the OK button. This operation saves the newly entered selector values onto the EEPROM and readies the machine for accepting a worker switch number.
Repeat steps (2) through (4) until the modification for the desired worker switches is completed.
When the Stop/Exit button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode.
To cancel this operation and return to the machine to the initial state of the maintenance mode during the above procedure, press the Stop/Exit button.
If there is a pause of more than one minute after a single-digit number is entered for double-digit worker switch numbers, the machine will automatically return to the initial state of the maintenance mode.
Printout of worker switch data (Function code 11)
The machine prints out the setting items of the worker switches and their contents specified.
Press the 1 button twice in the initial state of the maintenance mode. In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 11” appears on the LCD. Then press the OK button. The “PRINTING” will appear on the LCD.
Printing of CONFIGURATION LIST  starts, and when printing is finished, the machine beeps for one second and returns to the initial state of the maintenance mode.
The function names specific to multi-function machines are printed in CONFIGURATION LIST for convenience of program development. They are invalid in this product and should be ignored.
Operational check of LCD (Function code 12)
This function allows you to check whether the LCD on the control panel works normally.
Press the 1 and 2 buttons in this order in the initial state of the maintenance mode. In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 12” appears on the LCD. Then press the OK button. The LCD shows.
Each time you press the Start button, the LCD cycles through the displays as shown below.
When the Stop/Exit button is pressed regardless of the display, the machine cancels the operation, beeps for one second and returns to the initial state of the maintenance mode.
Operational check of control panel button (Function code 13)
This function allows you to check if the buttons on the control panel work properly.
Press the 1 and 3 buttons in this order in the initial state of the maintenance mode.
In the case of the model without the numeric keys; Press the [UP/DN] button. The “MAINTENANCE 13” appears on the LCD. Then press the OK button.
The “00” will appear on the LCD.
Press the buttons in the order designated in the illustration shown below. The LCD shows the corresponding number in decimal notation each time a button is pressed.
Check that the displayed number is correct by referring to the illustration below.  When the buttons are pressed in an incorrect order, a warning beep goes off and “INVALID OPERATE” appears on the LCD at the same time. Press the Stop/Exit button, and the press the correct buttons.
After the last number button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode.
When the Stop/Exit button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode.
Software version check (Function code 25)
This function allows you to check the management information of the software programs such as version information, check sum.
Press the 2 and 5 buttons in this order in the initial state of the maintenance mode.
In the case of the model without the numeric keys; Press the UP/DN] button. The “MAINTENANCE 25” appears on the LCD. Then press the OK button.
The machine displays each of items described below on the LCD.
Press the [UP/DN] button to check the next item.
When the Stop/Exit button is pressed regardless of the display, the machine cancels the operation, beeps for one second and returns to the initial state of the maintenance mode.
How to display the check sum information
Press the OK button when its version information is displayed on the LCD to display the check sum information. Press the OK button again to go back to the version information display. Press the [UP/DN]button to check the next item.
[Regarding the version information (Network and I-FAX) of which check sum information cannot be obtained, the check sum information is not displayed even if you press the OK button.]
[There are two types of check sum information which can be checked with this function. This function checks if these two types of check sum information are matched each other. When you press the OK button while “ROM Check Sum” is displayed, check is automatically conducted for each ROM of each software part.
When the check sum is matched, “OK” is displayed on the LCD. When all ROMs result in OK, “ROM Check Sum OK” is displayed at the end, and the operation is finished. When the check sum of any ROM is not matched, “NG” is displayed, and the display stops.]
Operational check of sensors (Function code 32)
This function allows you to check each of the sensors.
Press the 3 and 2 buttons in this order in the initial state of the maintenance mode.
In the case of the model without the numeric keys; Press the or button. The “MAINTENANCE 32” appears on the LCD. Then press the OK button.
The machine beeps 1,100 Hz and 400 Hz tones cyclically through the following volumes for testing the speaker. To stop beeping, press the OK button.
If the sensing status are as listed below, the LCD will show “RIRCNTRMRAPOCV_ _”, “DFDRAC” appears on the LCD.
Press the Start button to check the next item.
Given below is the relationship between the LCD indication, sensor name and sensor state.
Sensor locations

Tuesday, 2 April 2019

HP8500 – 8550 PRINTER FAMILY HP COLOR LASER-JET CLEANING PROCEDURE

HP COLOR LASER-JET CLEANING PROCEDURE- 8500 – 8550 Printer Family

Cleaning procedure that user can do.
CLEANING POST CHARGER
Clean the post charger on the transfer drum if there are light streaks in halftone areas.
To clean the post charger
1 Open the right upper door.
2 Locate the post charger unit cleaner next to the transfer drum handle.
3 Slide the post charger unit cleaner across the bar several times.
4 Push the cleaner back into place.
5 Close the right upper door.
Cleaning the density sensor
Clean the density sensor after replacing the imaging drum and when printed colors are inaccurate.
To clean the density sensor and erase lamp.
1 Open the right upper door.
2 On the inside of the door, locate the density sensor and the density sensor brush. Use the brush to brush off toner particles from the density sensor and the erase lamp.  Note:  You can also use a hand wipe to clean the density sensor. To prevent scratches on the sensor, do not use any paper products, such as tissue or paper towels, to clean the sensor.
3 Replace the brush.
4 Close the right upper door.
Cleaning the transfer charger
Clean the transfer charger when irregular wavy patterns appear in solid backgrounds.
To clean the transfer charger
1 Open the front door.
2 Find the knob below the transfer charger.
3 Pull the knob out and push it back in.
4 Close the front door.
Cleaning the toner catch tray
The toner catch tray will not normally have much toner in it. Clean the toner catch tray before moving the printer to another location or when performing routine maintenance at the customer site.
1 Open the front door.
2 Remove the toner catch tray cover by releasing the tab on the right side of the cover with a small screwdriver.
3 Remove the toner catch tray.
4 Vacuum toner out of the tray, or use a hand wipe to clean the tray if there is a small amount of toner in the tray.
WARNING:  Do not use a regular vacuum to clean up toner. The toner can penetrate the vacuum bag, and toner might be harmful if inhaled.
5 Re-install the toner catch tray and cover, and close the front door.
Cleaning the toner catch tray
The toner catch tray will not normally have much toner in it. Clean the toner catch tray before moving the printer to another location or when performing routine maintenance at the customer site.
1 Open the front door.
2 Remove the toner catch tray cover by releasing the tab on the right side of the cover with a small screwdriver.
3 Remove the toner catch tray.
4 Vacuum toner out of the tray, or use a hand wipe to clean the tray if there is a small amount of toner in the tray.
WARNING:  Do not use a regular vacuum to clean up toner. The toner can penetrate the vacuum bag, and toner might be harmful if inhaled.
5 Reinstall the toner catch tray and cover, and close the front door.

HOW TO ENTER SERVICE MODE - HP COLOR LASER-JET 8500/8550 - PRINTER

HOW TO ENTER SERVICE MODE - HP Color Laser-jet 8500/8550 - PRINTER

HP Color LaserJet 8500/8550_Service Mode & Adjustments.
 
 
 
 
 
 
SERVICE MODE MENU
The Service Mode Menu can be entered only by pressing the left side of the ITEM and the VALUE keys at the same time.  
NVRAM SETTING (nonvolatile random-access memory setting) menu is provided to replace values that might be lost when a formatter board or control board is replaced in the field.
FORMATTER DIAGNOSTICS menu is provided for manufacturing and field service personnel to perform specific diagnostic tests on the formatter board and its related components.
* Service personnel can pinpoint problem areas on the formatter board for replacement or for tracking defects.
* The operator can choose which tests are enabled and disabled during execution, whether the tests run once or continuously, and whether the test sequence stops upon failure or continues despite failure.
* A fault log is implemented within formatter diagnostics to record errors for review.
* Because many of the formatter diagnostic tests are destructive memory tests, a special key sequence is used to enter the mode. A message warns service personnel that the printer is about to perform destructive memory tests.
CLICK ON THE TABLES TO ZOOM IN

HP COLOR LASER-JET 8500/8550 - PRINTER ERROR CODES LIST

ERROR CODES HP Color Laser-jet 8500/8550 - PRINTER

Color Laser-jet 8500/8550 _ Error code display & Details
PRINTER ERROR CYCLE POWER: Event log message: 55.00.01
Description:
Indicates a printer command error. The commands cannot be exchanged between the printer and its controller.
Action:
1 Turn the printer off and on to reset the printer.
2 Verify the controller board is fully seated.
ERROR CYCLE POWER: Event log message: 56.01.01
Description:
Indicates an input feed error (such as requesting to feed transparencies through the duplexer), or that the input tray is not installed.
Action:
1 If the input tray you are trying to print from is not installed, install the input tray.
2 Turn the printer off and on to reset the printer.
ERROR CYCLE POWER: Event log message: 56.00.02
Description:
Indicates an illegal output error. For example, the multi-bin mailbox is not installed and it was selected as the output destination, or there are transparencies in the duplexer.
Action:
1 Open the printer and remove media from the paper path.
2 Verify that the media type is set in the printer control panel.
3 Turn the printer off and on to reset the printer.
FAN FAILURE: Event log message: 57.00.01
Description:
One of the cooling fans failed or is obstructed.
1 = Fan 1 (FM 1)
Action:
Caution: Turn the printer off and do not operate the printer in this condition or it can be seriously damaged.
1 Turn the printer off and on to reset it.
2 Reconnect connectors J702 and J706 on the carousel motor PCA, and connector J220 on the controller board.
3 Reconnect connector J701 on the carousel motor PCA, connectors J648 and J641 on the main relay PCA, and connector J102 on the DC power supply.
4 Measure the voltage across J702-3 (FAN1ON) and J701-2 (GND) on the carousel motor PCA after the printer is turned on. If the voltage changes from 0 V to 24 V, replace fan 1. 5 Measure the voltage across connector J701-1 (+24 VB) and J701-2 (GND) on the carousel motor PCA after the printer is turned on. If the voltage is about 24 V, replace the carousel motor.
6 Measure the voltage across connector J641-1 (+24 VB) and J641-4 (GND) on the main relay PCA after the printer is turned on. If the voltage is not 24 V, replace the main relay PCA.
7 Check the AC power supply.
8 If the problem is not rectified after the printer is turned off and on again, find the cause of activation of the over current/overvoltage detection circuit in the power supply. Wait more than two minutes before turning the power back on.
9 Replace the power supply.
FAN FAILURE: Event log message: 57.00.02
Description:
One of the cooling fans failed or is obstructed.
2 = Fan 2 (FM 2)
Action:
Caution: Turn the printer off and do not operate the printer in this condition or it can be seriously damaged.
1 Turn the printer off and on to reset it.
2 Reconnect connectors J703 and J706 on the carousel motor PCA and connector J220 on the controller board.
3 Reconnect connector J701 on the carousel motor PCA, connector J648 on the main relay PCA, and connector J102 on the DC power supply.
4 Measure the voltage across connector J703-3 (FAN2ON) and J703-1 (GND) on the carousel motor PCA after the printer is turned on. If the voltage changes from 0 V to 24 V, replace fan 2.
5 Measure the voltage across connector J701-1 (+24 VB) and J701-2 (GND) on the carousel motor PCA after the printer is turned on. If the voltage is about 24 V, replace the carousel motor.
6 Measure the voltage across connector J641-1 (+24 VB) and J641-4 (GND) on the main relay PCA after the printer is turned on. If the voltage is 24 V, replace the main relay PCA.
7 Check the AC power supply.
8 If the problem is not rectified after the printer is turned off and on again, find the cause of activation of the over current/overvoltage detection circuit in the power supply. Wait more than two minutes before turning the printer back on.
9 Replace the power supply.
FAN FAILURE: Event log message:57.00.03
Description:
One of the cooling fans failed.
3 = Fan 3 (FM 3)
Action:
Caution: Turn the printer off and do not operate the printer in this condition or it can be seriously damaged.
1 Turn the printer off and on to reset it.
2 Reconnect connectors J645 and J647 on the main relay PCA, J18 and J74 relay connectors, and connector J227 on the controller board.
3 Reconnect connector J641 on the main relay PCA, and connector J102 on the power supply.
4 Measure the voltage across J645-3 (FAN3ON) and J645-1 (GND) on the main relay PCA after the printer is turned on. If the voltage changes from 0 V to 24 V, replace fan 3.
5 Measure the voltage across connector J641-1 (+24 VB) and J641-4 (GND) on the main relay PCA after the printer is turned on. If the voltage is not 24 V, replace the main relay PCA.
6 Measure the voltage across connector J641-1 (-24 VB) and J641-4 (GND) on the main relay PCA after the printer is turned on. If the voltage is not 24 V, replace the main relay PCA.
7 Check the AC power supply.
8 If the problem is not rectified after the printer is turned off and on again, find the cause of activation of the over current/overvoltage detection circuit in the power supply. Wait more than two minutes before turning the printer back on.
9 Replace the controller board.
ERROR CYCLE POWER: Event log message:58.00.01
Description:
Indicates that the paper diverter inside the right upper door is out of position, causing an error feeding media from tray 1.
Action:
1 Open the right upper door and check for a media jam or mis fed media.
2 Turn the printer off and on to reset the printer.
MOTOR ERROR CYCLE POWER: Event log message:59.00.0 <x>
Description:
Indicates that the main motor (M4) is not working properly.
<x> = Description:
0 = General error
1 = Startup error
2 = Rotation error
Action:
1 Turn the printer off and on to reset the printer.
2 Reconnect connector J219 and relay connector J1 on the controller board.
3 Replace the main motor (M4).
4 Reconnect connectors J641 to J643 and J647 on the main relay PCA, connectors J671 and J673 on the sub relay PCA, connector J102 on the power supply, and connector J227 on the controller board.
5 Check electrical continuity between connector J641-1 (+24 VB) and J642-3 (PMP) on the main relay PCA when the door switch (SW641) is turned on. If there is no electrical continuity, replace the main relay PCA.
6 Check electrical continuity between connector J671-2 (PMP) and J671-2 (PFUPR) on the sub relay PCA when the door switch (SW671) is turned on. If there is no electrical continuity, replace the sub relay PCA.
7 Measure the voltage across connector J647-B11 (+24 UH) and J647-4 (GND) on the main relay PCA after the printer is turned on. If the voltage is not 24 V, replace the main relay PCA.
8 Replace the controller board.
SERVICE CYCLE POWER: Event log message: 62.00.0 <x>
Description:
Indicates that a problem exists with the internal memory.
<x> = Description:
0 = Internal ROM or RAM
1-8 = DIMM slots 1-8
Action:
1 Turn the printer off and on to reset the printer.
2 Perform DRAM DIMM test from the formatter diagnostics in the Service Menu.
3 If the problem persists, replace the bad DIMM.
SERVICE CYCLE POWER: Event log message: 63.00.00
Description:
Indicates that the internal RAM memory test failed.
Action:
1 Turn the printer off and on to reset the printer.
2 Perform DRAM DIMM test from the formatter diagnostics in the Service Menu.
3 If the problem persists, replace the bad DIMM.
Entering the Service Mode Menu
1 From a READY state, press MENU until SERVICE MENU
appears.
2 Press ITEM – (the left side of the key) and VALUE –simultaneously. until SERVICE MENU appears.