Parrot brand 823-accordion (red, 60-bass, 34-button, 5 tone). Bass part of a basic bass (bass) @ button. Sounding dull: and push and pull the bellows the sound of different tones.

First, open the accordion button box (bass) viewed: someday playing activities of the 60 institutions intact, this indicates fault in the vocal on Reed! So, pull out the 6 stainless steel nail, remove the sound box on the left side. Identified as:

(1) basic bass c Reed caught a sealed paper and blocked Reed vibrations, so inaccurate sound dull, get rid of it and sealing paper:

(2). P-bass c button sealing paper shift, resonance, make noise, using double-sided adhesive paper paste is corrected;

(3) the structure of traditional wooden accordion, vulnerable to weather and environmental effects of changes in temperature, humidity, its bellows, resonator, Reed bent junction of looseness and leakage phenomenon occurs. Resize the fastening screws, compaction. After contact, timbre and loudness are significantly improved and enhanced.