Read Sony STR-DA6400ES (serv.man4) Service Manual online
11
VIDEO SYSTEM CONTROLLER (IC3610 21pin) outputs a reset signal
to OSD CONTROLLER (IC3604 39pin). Then, OSD CONTROLLER
starts to read the operation firmware from FLASH MEMORY (IC3603).
starts to read the operation firmware from FLASH MEMORY (IC3603).
(Troubleshooting) Video related circuit operation
VIDEO CONTROLLER (IC3610) communicates with VIDEO
PROCESSOR 1 (IC3601), VIDEO PROCESSOR 2 (IC3606) and OSD
CONTROLLER (IC3604). If one of IC communication is not established
well, the firmware version of VIDEO CONTROLLER is shown as
“Video Ucom Ver 0.00” in SPECIAL MENU MODE of test mode on
page 25.
CONTROLLER (IC3604). If one of IC communication is not established
well, the firmware version of VIDEO CONTROLLER is shown as
“Video Ucom Ver 0.00” in SPECIAL MENU MODE of test mode on
page 25.
At the same time, Version of VIDEO PROCESSOR 1 (IC3601), VIDEO
PROCESSOR 2 (IC3606) and OSD CONTROLLER (IC3604) are also
shown to “Ver 0.00”
shown to “Ver 0.00”
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