Protection Circuitry; Safety Parts Information - Technics SU-G700E Service Manual

1.3.

Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
"shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.4.

Safety Parts Information

Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by
critical parts should be replaced with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these
Safety Ref No. Part No.
20 RFKKSUG700ES
38 TKFA22401A
38 TKFA22501A
A2 K2CM3YY00041
A2 K2CS3YY00033
A2 K2CG3YY00191
A3 TQBM0061
A3 TQBM0062
A3 TQBM0060
PCB4 TNPA6359AA
PCB4 TNPA6359AB
Part Name & Description
TOP CABINET ASS'Y
REAR PANEL
REAR PANEL
AC CORD
AC CORD
AC CORD
OI(En/Ge/Fr/It/Du)
OI(Sp/Sw/Da/Fi/Po)
OI(En/Cf)
SMPS P.C.B
SMPS P.C.B
5
Remarks
G700E-S
G700PP-S
G700E-S
G700E-S
G700PP-S
G700E-S
G700E-S
G700PP-S
G700E-S
G700PP-S