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Popular Yamaha XS350 Manual Pages
Owner's Manual - Page 1
POWER AMPLIFIER
94 94
Owner's Manual
POWER ON OFF
POWER
SIGNAL CLIP PROTECTION CLIP SIGNAL
CH A
CH B
350
POWER AMPLIFIER XS SERIES
E
Owner's Manual - Page 2
... the XS350, XS250 series
• The unit is provided for purchasing a Yamaha XS350, XS250 series power amplifier. In order to take full advantage of your power amp and enjoy long and trouble-free ....
This owner's manual covers the two models XS350, XS250.
The wire which is coloured BROWN must be connected to the terminal which the unit operates as power-on/off frequencies between...
Owner's Manual - Page 3
... in an EIA standard rack 10 Portable Rack Mounting 11 Fixed Installation Mounting 11 General Specifications 12
Specifications 12 Block Diagram 13 Dimensions 13
Troubleshooting 14
3 If you continue using the unit without heeding this instruction, fire or electrical shock may result.
• Hold the power cord plug when disconnecting it from the unit.
• Clean...
Owner's Manual - Page 4
... consult the Precautions section of this manual to improve the vent condition, if necessary. Press again to power ON the amplifier. After 3 seconds, the protection system is deactivated automatically, and the amplifier is ready to use.
• If a DC voltage is present at the amplifier's outputs: If the DC voltage problem is working. Controls and Functions...
Owner's Manual - Page 5
...B. NEL A, B) These knobs and sliding switches are fixed.) This setting is suitable when using the unit as a conventional stereo amp). BRIDGE
STEREO
PARALLEL
• STEREO mode In this mode, the ... the volume control for Channel A are variable.)
If you select "LOW CUT," you to set the amplifier operating mode: STEREO, BRIDGE or PARALLEL.
The CHANNEL A and B volumes can select one of...
Owner's Manual - Page 7
...Ω
7 Using the barrier strip and binding posts simultanuously
STEREO mode connections:
MODE
BRIDGE
STEREO
PARALLEL
Set to BRIDGE
-
+
+
- Each speaker min. 8Ω
Each speaker min. 8Ω
BRIDGE mode connections:
MODE
BRIDGE
STEREO
PARALLEL
Set to STEREO
-
+
+
- s Speaker Impedance
In STEREO and PARALLEL modes, the minimum load (i.e., speaker) impedance is 8Ω...
Owner's Manual - Page 8
...+
+
-
-
+
Speaker min. 8Ω
Speaker min. 8Ω
8 SPEAKERS
-
+
+
-
Each speaker min. 4Ω
Each speaker min. 4Ω
BRIDGE mode connections:
MODE
BRIDGE
STEREO
PARALLEL
Set to PARALLEL
• Using the barrier strip
-
+
+
-
Not used
-+ +-
• Using the terminal posts
-
+
+
- Not used
-+
• Using the terminal posts
-
+
+
-
Using...
Owner's Manual - Page 9
...in monaural on the XS250; 230 W+230 W (8Ω), 350 W+350 W (4Ω) in stereo and 700 W (8Ω) in...in stereo and 500 W (8Ω) in monaural on the XS350.
Use the following formula to determine the fuse capacity according to...of the power amplifier, you can protect your amplifier is calculated as possible to page 6 for speaker porality.
* Shown actual size. Power amplifier _+
Fuse...
Owner's Manual - Page 10
...-power amp units are mounted in a rack whose back can not be impaired. In particular, when mounting in a rack with poor ventilation, the heat from the amps will cause the interior of the amp to become very hot, causing the performance of the amps to the following instructions. Fan kit XS350/XS250 Blanking panel XS350/XS250 Blanking panel XS350...
Owner's Manual - Page 11
...
INPUT
CHANNEL B
CHANNEL A
+
- G
+
-G
SPEAKERS
CHANNEL B
CHANNEL A
-
+
+
-
70V = 32Ω/CHANNEL 100V = 64Ω/CHANNEL
s Fixed Installation Mounting
Do not block the vent openings on the rear and sides. s Portable Rack Mounting
This unit uses a forced cooling system in which air comes...sure to maintain vent openings on the rear and sides when you use the power amplifier.
Owner's Manual - Page 12
...Rear Panel
Connectors
Indicators
Protection Circuits PC limiter Fan Speed Power Requirements Power Consumption
Dimensions (W x H x D) Weight
Input Output
POWER PROTECTION CLIP SIGNAL
US & Canada Europe Other
Idling 1/8 output power, 4Ω Maximum output, 4Ω
XS250
XS350
170 W + 170 W 250 W + 250 W 500 W
230 W + 230 W 350 W + 350 W 700 W
185 W + 185 W 280 W + 280 W 560 W
250 W + 250...
Owner's Manual - Page 14
... operates to protect the power transistors.
The heat sink temperature has exceeded 90°C. Troubleshooting
The following table lists the main causes of ±2 V or greater was generated in each case.
Remedy
Locate and correst the cause of at a speaker terminal, amplifier terminal, or wire. Consult your dealer or nearest Yamaha service center.
Indicator CLIP...
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