Read Sharp DV-HR400H (serv.man2) Service Manual online
17
DV-HR400S/H
DV-HR450S
DV-HR480S/H
P
o
wer On Pr
ocess 3
Cancel power-saving mode
Startup operation start
W
rite FLASH memory IC7507 contents to
SDRAM IC4602, 4603
Initialize each pin in IC7508
Import data from E2PROM
TT
microprocessor IC501 starts to
communicate with IC7508
(4-wire serial communication)
IC7508 starts to communicate with writer
and HDD
Cancel IC4501, IC4004, IC4001, IC3502
reset
Initialize 3DYC IC3502,
Audio DAC
Cancel video mute
Startup operation end
Click on the first or last page to see other DV-HR400H (serv.man2) service manuals if exist.