Section 1
Service Overview
1-1. Notes on Repair Parts1-2. Circuit Protection Device
1. Safety Related Components WarningThe circuit protection device (positive thermistor) is
*1
wmounted on the DEC-99 board.
Components marked ! are critical to safe operation.
Therefore, specified parts should be used in the case of*1 : Board with suffix -12; TH1 (A-1)/DUS-183 board
Board with suffix -13 and higher ; TH1 (H-1)
replacement.
If overcurrent flows through the circuit when the power is
2. Standardization of Parts
provided from the IF terminal to the LNB (Low Noise
Some repair parts supplied by Sony differ from those
Block), or the temperature around the device rises, an
used for the unit. These are because of parts common-
internal resistance of the device increases suddenly. As a
ality and improvement.
consequence, it limits a current flowing through the circuit.
Parts list has the present standardized repair parts.
When the circuit protection device operates, turn off the
power and check the circuit to eliminate the cause for
3. Stock of Parts
which the overcurrent flows. After waiting for the device
Parts marked with Oo� at SP (Supply code) column of
to cool off, turn on the power again. The circuit protection
the spare parts list may not be stocked. Therefore, the
device is reset automatically.
delivery date will be delayed.
4. Units Representation
The following represented units are changed or
omitted in writing.
UnitsRepresentation
CapacitanceuFuF
InductanceuHuH
ResistanceZAbbreviation
TemperaturedCXXX-DEG-C
5. Replacement of Plug-in Boards
The component electrical parts except the connectors,
LEDs and switches mounted on the DEC-99 and TSI-2
boards cannot be replaced.
If there is any defective parts, replace each mounted
circuit board itself.
6. Replacement of Optional Boards
If it is necessary to replace the SCR-7/8 board, please
place an order the BDKP-D1003/D1004 through the
sales route.
BDX-D10001-1 (E) |
ACEC
SONY
