Handle Fitting Instruction
TMS (Thermal Management System)
This amplifier features an innovative temperature controlled
gain variation technology called the Thermal Management
System (TMS).
When the temperature at the heatsink reaches beyond the
permissible limit, the TMS circuit intuitively reduces the gain
proportionally without any dropouts. This feature prevents the
amplifier from going into thermal protection mode thereby
ensuring a smooth and uninterrupted sonic performance.
Due to excessive heating of transformer, the thermal
protection circuit brings the audio signal to mute state. Onset
of thermal protection circuit is indicated by glowing of Mute
LEDs (yellow) in each channel.
To restore normal operation conditions, it is
recommended to switch off the amplifier & rectify the
cause.
DC, RFI Protection
Inbuilt circuitry is provided to protect the loudspeaker from
any offset DC voltages. Also sufficient suppression filters at
primary & secondary power supplies have been inbuilt, to
overcome RF interferences.
Overload / Short Circuit Protection
Protection circuit is provided in both channels for the safety of
output devices in case of overloading or mismatching of
impedances at outputs.
Over Voltage Protection
Built in protection against mains over voltage supply. It is
especially useful while operating amplifier on Genset.
This avoids amplifier failure at higher mains.
Due to excessive heating of output devices, the thermal
protection circuit brings the audio signal to mute state. Onset
of thermal protection circuit is indicated by glowing of Mute
LEDs (yellow) in each channel.
To restore normal operation conditions, it is recommended
to switch off the amplifier and rectify the cause.
The amplifier is designed for use in a standard 19” rack
with height of 3U units.
In order to provide sufficient support base to the heavy
amplifier, it is essential to use the 19” rack system with side
support mounting also in addition to front screw mounting
as shown in the figure below.
19” Rack Installation
The ‘U’ handles are helpful in easy portability of the
amplifier for table top usage. Do not keep the set on an
unstable stand or tripod.
Table Top Usage
Note:- 1) Handles to be fitted on both sides as shown in diagram above.
2) Handle (PVCIPC98) 2 nos. & Screw M5x10 (HRDBN458) 4 nos. are included in packing.
Output Devices
Transformer
Screw M5x10mm
(HRDBN458) 4 Nos.
(PVCIPC98) 2 Nos.
Handle
0
10
CH A
0
10
CH B
XPA 40
POWER
BASS BOOST
TMS
MUTE
CLIP
-3dB
-10dB
SIG
-20dB
+
0
10
CH A
0
10
CH B
XPA 40
POWER
BASS BOOST
TMS
MUTE
CLIP
-3dB
-10dB
SIG
-20dB
8. Protections & Installations.
15
0
10
CH A
0
10
CH B
XPA 40
POWER
BASS BOOST
TMS
MUTE
CLIP
-3dB
-10dB
SIG
-20dB
Thermal Protection
