Read Sharp UP-5700 (serv.man7) Service Manual online
4-6. CPU/VGA PWB relay PWB: CKOG-6728BHZZ
The CPU PWB, you can check the soldered face of the CPU PWB by
connecting the CPU PWB to the VGA PWB.
connecting the CPU PWB to the VGA PWB.
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External view
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Connection diagram
4-7. BIOS loading board: CKOG-6727BHZZ
The BIOS loading board: CKOG-6727BHZZ is a tool to write a BIOS
ROM program in the F-ROM on the UP-5700’s main board. Use this
PWB in the following cases:
ROM program in the F-ROM on the UP-5700’s main board. Use this
PWB in the following cases:
•
The F-ROM on the UP-5700’s main board is changed due to some
defect and a BIOS ROM program is written in the F-ROM.
defect and a BIOS ROM program is written in the F-ROM.
•
The BIOS ROM program in the F-ROM is overwritten due to the
version up of BIOS ROM program, etc.
version up of BIOS ROM program, etc.
Connected to the Option ROM/RAM disk connector (CN19) of the
Main PWB.
Main PWB.
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External view
CPU/VGA PWB relay PWB
CPU PWB
Main PWB
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