Circuit Protection Device - Sony CCU-D50 Service Manual

12. When the downloading was completed, the version of
the new ROM DATA is displayed.
Be sure not to turn OFF the POWER till the download-
ing is finished.
Fie, EES Setup! Contral: Window Hela cs?
2002703730
2002705729
> CCU-DSO BOOT—PROGRAM VERSION = 1.00
CCU-D50 MAIN-PROGRAM VERSION = 1.00
> PLEASE DOWNLOAD LOAD module(CCUDSOLD_Vxxxx XHO)
> LOAD nodule download coaplete
> CCU-D50 MAIN-LOAD module ¥.2.00 2062708727
> FLASH ROM CLEAR. OK?(Y/N)
'» FLASH ROM CLEAR coaplete.
PLEASE ROM DATA(CCUDSO_Vxxxx.XHO) DOWNLOAD
> ROM DATA URITE OK.
> CCU-DS0 BOOT~PROGRAM VERSION » 1.00
CCU-DSO HAIN-PROGRAH VERSION = 1.04
PLEASE POWER OFF CCU-DS50.
2602703730
2002707708
13. Turn OFF the POWER switch of CCU-D50/DSOP.
14. Set the switch $2001 (J-8) on the PR-270/270A board
to RCP side, and disconnect the RS-232C interface
cable.
15. Reinstall the top cover. (Refer to Section 1-6.)
16. Turn ON the POWER switch of CCU-D50/DS50P, and
set the setting data of the front panel and menu again.
(Refer to the Operating Instructions.)
CCu-D50/D50P SMV1E
1-12. Updating the Software
1-13. Circuit Protection Device
1-13. Circuit Protection Device
The PR-270/270A board is provided with positive ther-
mistors for power line to protect circuits. This device limits
a current by steeply increasing the inner resistance when
the device rises to a certain temperature due to overcurrent
or high ambient temperature. If the device is activates
once, turn off the power and check an equipment con-
cerned; camera control unit or other equipment connected
to the REMOTE connector of the camera contro] unit.
After the cause is eliminated and the device cools off, turn
on the power again. If there is no trouble, the unit will
operate normally. It takes about one minute for the device
to cool off after powering off the unit.
PR-270/270A Board
Ref.No. Address Equipment protected
THP1 F8 Circuits in the camera control unit
THP2 D10 Equipment connected to REMOTE
connector
1-15