Epson Stylus Pro 9900 - FLASH BOOT SUM CHECK Error; NVRAM Error; SDRAM Error; Unknown NMI

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
TROUBLE SHOOTING Remedies for Service Call Error 147
Confidential
1A50
Hardware
I2C communication
error (Between
elements on ASIC
and MAIN)
Communication error. Replace the Main Board Assy. (See P.228)
1A51
Hardware
I2C communication
error (Between
elements on ASIC
and SUB)
Communication error. 1. Check the connection between the Sub Board Assy and the Main
Board Assy if the FFC is connected correctly (no slant connection
exists). Correct it if any abnormality exists.
2. If the printer does not recover from the error after trying 1, replace
the FFC between the Sub Board Assy and the Main Board Assy.
3. If the printer does not recover from the error even after trying 2,
replace the Sub Board Assy. (See P.231)
1A52
Hardware
I2C communication
error (Between
elements on ASIC
and SUB-B)
Communication error.
1A53
Hardware
I2C communication
error (Between
elements on ASIC
and SUB-C)
Communication error.
2000
Memory NVRAM error NVRAM erase or write error has occurred.
Replace the Main Board Assy. (See P.228)
2002
Memory SDRAM error SDRAM read/write error has occurred. Replace the Main Board Assy. (See P.228)
2003
Memory
FLASH BOOT
SUM CHECK error
Installation of the firmware has been failed.
Re-install the firmware.
Replace the Main Board Assy. (See P.228)
The Flash ROM has a defect. Replace the Main Board Assy. (See P.228)
200A
Memory F/W load error
Reading/decompressing the firmware has been failed.
Re-install the firmware.
Replace the Main Board Assy. (See P.228)
200D
System
System interrupt
watchdog time-out
error
A system failure such as CPU failure, defective cash or the like has
occurred.
Replace the Main Board Assy. (See P.228)
200E
System Unknown NMI The CPU has detected an unknown NMI. Replace the Main Board Assy. (See P.228)
2010
System
UART
communication error
Connection between the HEAD_B Board Assy and the Main Board
Assy has an abnormality.
Check the connection between the HEAD_B Board Assy and the Main
Board Assy.
Replace the Main Board Assy. (See P.228)
Replace the Ink holder Board Assy (Ink Cartridge Holder L/R). (See
P.277, P.284)
3000
Shut down AC shut-off
The AC power has been shut off due to a power failure, unplugged,
power supply board failure, or main board failure or the like.
Check the connection of the AC cable, and if there is abnormality,
correct it.
Replace the Power Supply Board Assy. (See P.230)
Replace the Main Board Assy. (See P.228)
Error Code
Error Details
Description Remedy
Failed Part Error Name