2-4. Notes on Service
2-4. Notes on Service
2-4-1. Circuit Protection Device
The CN-1438/1552 and MB-783 boards are provided with positive thermistors 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 concerned; camera adaptor or other equipment connected to the
DC OUT, TRACKER or REMOTE connector of the camera adaptor. 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 a minute for the device to cool off after powering off the unit.
BoardRef No.AddressEquipment protected
CN-1438CB1B3Circuits in the camera adaptor
CN-1552CB1NEquipment connected to DC OUT connector
MB-783CB1D2Equipment connected to TRACKER connector
CB2D2Equipment connected to REMOTE connector
2-4-2. Notes on Repair Parts
1. Safety Related Components Warning
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Components marked ! are critical to safe operation. Therefore, specified parts should be used in the
case of replacement.
2. Standardization of Parts
Some repair parts supplied by Sony differ from those used for the unit. These are because of parts
commonality and improvement.
Parts list has the present standardized repair parts.
3. Stock of Parts
Parts marked with Oo� at SP(Supply Code) column of the spare parts list may not be stocked.
Therefore, the delivery date will be delayed.
4. Units Representation
The following represented units are changed or omitted in writing.
UnitsRepresentation
CapacitancemFuF
InductancemHuH
ResistanceZAbbreviation
TemperaturedCXXX-DEG-C
5. Destination Representation
The part indicated OFor UC/J/CE� in the spare parts list is used in the unit written below.
For J: The part is used in a unit for Japan.
For UC : The part is used in a unit for U.S.A. and Canada.
For CE : The part is used in a unit for regions except the above countries.
CA-5702-3 (E)
CA-570P |