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Model # SSM-121 Official Sony security system

Here are the diagrams and repair parts for Official Sony SSM-121 security system, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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Showing 6 of 6 parts  |
Resistor Var 999633001

#NI

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Resistor var

Part #999633001

The manufacturer no longer makes this part, and there's no substitute part

Resistor Var 999633201

#NI

All parts diagram

Resistor var

Part #999633201

The manufacturer no longer makes this part, and there's no substitute part

Home Electronics Transistor 999790101

#NI

All parts diagram

Home electronics transistor

Part #999790101

The manufacturer no longer makes this part, and there's no substitute part

Resistor Var 999633301

#NI

All parts diagram

Resistor var

Part #999633301

The manufacturer no longer makes this part, and there's no substitute part

Switch Power 999635001

#NI

All parts diagram

Switch power

Part #999635001

The manufacturer no longer makes this part, and there's no substitute part

Resistor Var 999633501

#NI

All parts diagram

Resistor var

Part #999633501

The manufacturer no longer makes this part, and there's no substitute part

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