Panasonic Lumix DC-GH5SP Service Manual page 7

3.2.1.3. About Main P.C.B. (Ref.1) / Flash-ROM (IP2001) (Including [Restriction of data-
copying])
Before exchanging the "Main P.C.B.", confirm that the symptom and/or phenomenon is not due to the setting of functions.
Important:
When replacing the Main P.C.B. that cannot be repaired by exchanging the IC, carry out any of followings.
In the case of exchanging the Flash-ROM (IP2001) is same way too.
1. When the camera power can be ON, and camera body and adjustment software can be communicated:
Before replacing the "Main P.C.B. and/or Flash-ROM", proceed the EEPROM data backup from the unit.
After replacing the Main P.C.B. and/or Flash-ROM, overwrite the EEPROM data with backup data from the unit first,
then proceed the adjustment /inspection. (Almost adjustment/inspection items can be omitted.)
Refer to the adjustment instruction in the adjustment software for details.
However, the method of data-copying is restricted for this unit.
Refer to the following matter.
[Restriction of data-copying]
• When proceeding to copy (overwrite) backup data to another Main P.C.B., make sure that the unit is connected to PC and the
adjustment software is working.
• Operate by following the instructions on the screen of [EEPROM data management] that is displayed when starting the
adjustment software.
• Do not data-copy (overwrite) while the camera body itself is not connected to PC.
• Data-copying (overwriting) is prohibited for this unit which is not connected to PC, as the management data that each Main
P.C.B. holds will be replaced and lose its original function.
2. When the camera power cannot be ON, or camera body and adjustment software cannot be communicated:
Almost full adjustment/inspection must be performed after replacing the "Main P.C.B. and/or Flash-ROM".
Refer to the adjustment instruction in the adjustment software for details.
Notes after replacement:
Make sure the camera body firmware is latest version.
3.2.1.4. About Venus Engine (IS2001) [Located on the Main P.C.B.]:
• The Venus Engine (IS2001) consists of two IC chips, which are fixed together with solder.
(The so called, "Package On Package" type IC.)
NOTE:
• During servicing, do not press down hard on the surface of IS2001.
3.2.2. About Flexible Cable and Connector
Do not touch carelessly so that the foreign body should not adhere to the terminal part of flexible cable and connector.
Wipe off with a clean cloth and the cotton bud, etc. when the terminal part is dirty.
7