Description
Get your Matantz 4140 Quad Amplifier fixed. All modifications.
All product pricing is for Repair Services only. Request Information for more Information.
This listing is for 1 service repair .
Repair service for Matantz 4140 Quad Amplifier only .
REPAIR SERVICE ONLY , NOT THE UNIT ON PICTURE.
after you paid on this listing – You have to send your not working unit to us.
Provo electronics
6434 41st. street, east
Fife , WA ,98424
Pay attention to shipping box. Double box for protection is better. Protect unit corners and face plate.
We will perform repair and cleaning service inside unit , not outside, focusing on bad internal components and parts.
Unit functionality on us. Repair idea – return full
functionality making minimum change to your unit. OUR JOB IS INSIDE.
what is included:
– troubleshooting and repair on your unit.
– parts and components is our problems, not yours.
– cleaning internal components.
– replacing all bad , electronic components.
– replacing all aged (some components have limit of life)critical components (electrolytic capacitors, some specific transistors, diodes . )
– testing after repair — 24 hours.
– time frame 17-28 days after we receive unit.
– No hidden fees or charges.
– in case we can’t fix your unit – full money refund
PROBLEMS COVERAGE
– no power.
– no sound
– crackling or distorted sound
– no left channel
– no right channel
– unstable and intermittent sound.
– smoke comes from inside.
– any problem after warm up.
– one of inputs not working , one of functions not working
– blowing fuse.
– no balance, no tone, low output.
– protection issue.
After repair you will have a fully working unit back+ our shop receipt with explanation of all replacement done inside.
All upgrades, changing design ,functionality will be offer to you by email if needed and will need your approval.
PARTS AND COMPONENTS WE USE IN REPAIR PROCESS
original or closest analog if original not available .
IF ORIGINAL NOT AVAILABLE we will use
ELECTROLYTIC CAPACITORS —- Elna, Panasonic, Nichicon,Rubycon, Samxon,
NON ELECTROLYTIC — Sangamo, k73-16 , Mullard , K42Y-2, KSO-2G
NON ELECTROLYTIC solid state SCHEMATICS — Saha, Vishay ,
TRANSISTORS , IC ———————————- Philips, Pioneer,Sanken,DEC,SMK, Mitsubishi.
Each repair case is unique and we will decide what part will be used for best performance.
Our goal — minimum change to unit to keep unit original schematic design.
In any case we will contact you and inform you how it goes.
Certified repair shop.
THERE ARE UNITS WE DO NOT TAKE FOR REPAIRS
— AFTER MAJOR WATER OR CHEMICAL DAMAGE INSIDE.
— AFTER MAJOR FIRE.
— 30% AND MORE MISSING INTERNAL COMPONENTS
— AFTER IDIOTIC UPGRADES AND REDESIGN.
— AFTER SEVERE MECHANICAL DAMAGE.
IF FOR SOME REASON WE CAN NOT FIX your unit —- FULL REFUND , NO QUESTIONS ASK.
PROJECT TIME FRAME – 17-28 DAYS.
Shipping back is free.
