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Old 15th August 2002, 08:19 PM   #1
Mark25 is offline Mark25  United Kingdom
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Default Exposure output devices?

Hi Everyone,
does anybody happen to know what output devices exposure use in their amp's, specifically the Super XX, i've just shorted the o/p so mine are no more! there are three per channel:
EXP002N EXP002P EXP8N ch1.
EXP002N EXP002P EXP8P ch2.
any info greatly appreciated
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Old 23rd February 2007, 04:07 AM   #2
osher is offline osher  Malaysia
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Default Exposure Super XV

Hi Mark25,

I have also one unit with shorted output transistors which I need more info. Have you figured out what are the equivalent output transistors for EXP002N, 002P and 8P?
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Old 23rd February 2007, 11:11 AM   #3
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From very recent experience reviving a XX integrated.

1. service@exposurehifi.com is very helpful.

2. EXP002N/Ps are the output transistors. Originals are made by Semelab to Expo specs and can still be ordered from Expo service. Else venerable MJ15003/4 should fit. Newer MJ15022/3 works for me. If you're truly adventurous, you can try newest MJ21193/4. Risk: Oscillation. Reward: Better sound.

3. EXP8N/P are not output but part of regulated amp supply. You can use the same devices as the output transistors.

4. Need to check/replace ztx452/552 pairs, diodes and resistors upstream as well when repairing blown channel(s).

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