Bose PowerMatch PM8250 Service Manual

2
CONTENTS
Safety Information .............................................................................................................................3
Warranty .............................................................................................................................................3
Specifications................................................................................................................................ 4-5
Product Description ................................................................................................................... 6-15
Electrostatic Discharge Sensitive (ESDS) Device Handling .....................................................16
Part List Notes ................................................................................................................................16
Packaging Part List, PowerMatch
®
Amplifier (refer to Figure 1) ................................................17
Figure 1. PowerMatch Amplifier Packing View ................................................................................17
Main Part List, PowerMatch Amplifier (refer to Figure 2) ...........................................................18
Figure 2. PowerMatch Amplifier Exploded View ..............................................................................18
Main Part List, PowerMatch Amplifier (refer to Figure 3) ...........................................................19
Figure 3. PowerMatch Amplifier Exploded View ..............................................................................19
Main Part List, PowerMatch Amplifier (refer to Figure 4) ...........................................................20
Figure 4. PowerMatch Amplifier Exploded View ..............................................................................20
Main Part List, PowerMatch Amplifier (refer to Figure 5) ...........................................................21
Figure 5. PowerMatch Amplifier Exploded View ..............................................................................21
Figure 6. PM8500N Amplifier with the cover removed ..................................................................... 22
Disassembly Procedures ......................................................................................................... 23-28
Test Procedures ....................................................................................................................... 29-40
4. Hi-Pot Test ...................................................................................................................................39
5. Ground Bond Test ......................................................................................................................39
Firmware and Speaker EQ Update Procedure ...................................................................... 40-41
Service Manual Revision History .................................................................................................42

Bose PowerMatch PM8250 Specifications

General

Damping factor	1000
Amplifier class	D
Audio output channels	- channels
Peak power per channel	- W
Signal-to-Noise Ratio (SNR)	99 dB
Total Harmonic Distortion (THD)	0.4 %
Bridge-mode power output per channel (4 Ohm)	500 W
Purpose	Performance/stage
Equalizer	Yes
Product color	Black
Connectivity technology	Wired
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Speakers connectivity type	-
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Depth	525 mm
Width	483 mm
Height	88 mm
Weight	11100 g