Read Sharp PN-U473 (serv.man2) Service Manual online
PN-U533/U473/U423 IMPORTANT INFORMATION FOR SERVICING THE DISPLAY 3-2
1-2. I/F PWB REPLACEMENT PROCEDURES
1) Read the following information from the monitor before replacement of the I/F PWB.
・USAGE TIME
・WHITE BALANCE VALUE
(MEMO)
・
If the machine does not operate before replacement and reading cannot be made, this procedure is not required.
2) Replace the I/F PWB and execute FACTORY RESET.
→Refer to “3. FACTORY RESET”
3) Each service part has the firmware written in it. If necessary, the firmware should be updated to the latest.
→ Refer to “5-1. MAIN FIRMWARE UPDATE PROCEDURE (RS-232C)”
4) Set the MODEL TYPE depending on the destination. The default destination of service parts is “JP.”
→ Refer to “1-2. SERVICE MENU 2”
5) Write the information read in the above step 1).
When the reading cannot be executed, perform the following operation.
--- Set “0” to USAGE TIME and perform initialization.
--- Reset the WHITE BALANCE set values.
6) Write the serial number.
→ Refer to “11. SERIAL NUMBER WRITING PROCEDURES”
7) Reset system log information.
→ Refer to “14-8. OTHER FUNCTIONS”
1-3. LCD MODULE REPLACEMENT PROCEDURES
1) Set “0” to USAGE TIME and perform initialization.
2) Reset the WHITE BALANCE set values.
3) Reset the system log and the temperature log information.
→ Refer to “14-8. OTHER FUNCTIONS”
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