Note On Flash Memory; Notes On Repair Parts; Optional Fixture - Sony RM-B150 Maintenance Manual

2-8. Notes on Service

2-8-2. Note on Flash Memory

IC4 on the CPU-266 board is a flash memory with a built-in ROM. The designation of the program is
suffixed to the IC name of IC4. As the ROM version is changed, the designation of the suffix is also
changed.
Require attention not to use the flash memory which is not programmed.

2-8-3. Notes on Repair Parts

1. Safety Related Components Warning
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 "o" 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.
Units
Capacitance uF
Inductance uH
Resistance Z

2-8-4. Optional Fixture

Description P/N
IC removing tool J-6035-070-A
2-10(E)
Representation
uF
uH
Abbreviation
Remarks
To remove IC4/CPU-266 board (PLCC type)
RM-B150