Troubleshooting Solutions; Specifications - ADC Adscope 658 Instructions For Use Manual

• Periodically check that eartips are tightly secured to binaurals.
• Do NOT immerse stethoscope in any liquid or subject to steam sterilization.
• Chestpieces and diaphragms can be wiped down with 70% isopropyl alcohol for
cleaning purposes.
It is unnecessary to disassemble the unit for cleaning. Use a slightly moistened cotton cloth with al-
cohol to clean chestpiece diaphragm, binaurals, and eartips. Be careful to prevent alcohol seepage
under the diaphragm. It may cause significant damage to the microphone and electronic circuits.
Caution - Never immerse instrument in any liquid. Do not apply excessive force to the di-
aphragm. Your Adscope
piezopolymer film contact microphone positioned behind it. The chestpiece is not user-serviceable
and should never be disassembled, except to replace the diaphragm.
To order any replacement parts, contact our Customer Service department at 1-800-232-2670.

Troubleshooting Solutions

Battery will not charge
Poor sound quality, intermittent
sound amplification, or
no sound amplification
Damaged/worn chestpiece
diaphragm
Low battery icon is displaying

Specifications

ITEM
Sensor:
Voltage:
Power Dissipation:
Filter Range:
Battery Life
Charging Time
Amplifier
Control Volume
TM 658 electronic stethoscope has a replaceable diaphragm with a
Check battery connection. If battery is properly connected and will not
charge, battery must be replaced. Contact your local ADC dealer.
Contact your local ADC dealer for warranty service on your stethoscope.
Contact your local ADC dealer for warranty service on your stethoscope.
Charge battery. If icon displays frequently despite regular charges contact
your local ADC dealer for replacement battery.
Piezoelectric sound transducer activated by polycarbonate diaphragm
3.7v Li-polymer
0.115VA (3.7v * 31mA)
Microphone
Filter Range
20 hours under continuous power on
70 minutes
Amplification range
Control Volume
CONTENT
5Hz - 5,000Hz
Bell Mode
Diaphragm Mode
6dB - 18dB
Digital volume (8 step), 3dB/step
15Hz - 200Hz
100Hz - 500Hz