CH P1 - Troubleshooting Common Issues

3. Push and keep the STANDBY (S) button pushed and power up the unit (back panel power switch to ON). Keep the
STANDBY (S) button pushed for a couple more seconds after you turned the unit on.
4. The unit performs the emergency firmware update. Once the operation is complete, the unit automatically goes into
Standby. Remove the USB stick and turn the unit on. The new firmware is now active. To verify that the firmware
update is effective, navigate to the FACTORY_SETTINGS menu and select the FIRMWARE_VERSION item. The displayed
firmware revision should match the firmware revision on the files copied to the USB stick
5. If the emergency firmware update procedure fails, try the same procedure again using a different USB stick. If the
failure persists, turn off your unit and contact your authorized dealer for assistance.
Note: The emergency firmware update procedure lasts several minutes, do NOT interrupt it!
10 Troubleshooting
Error Action
No power Check the AC power cord
Check the power switch at the back of the unit
Check the mains fuses on the AC power cord receptacle
No sound
(general)
Check that your turntable is playing, and the cartridge is properly connected to the tonearm
Check that the tonearm is properly connected to the desired P1 input
Check that the correct input is selected on your P1
Try slightly increasing the gain of that input
Check that your P1 is properly connected to your line level preamplifier
No sound
(“7” is displayed)
Your P1 is muted (display area 2 7 must be off for the unit to output signal). Unmute using the top
front panel button
Lost in the settings? Restore the default factory setting and start your setup again
Firmware update fails Perform the emergency software update procedure
USB stick for firmware
update is not detected
Try another brand of USB 2.0 stick. CH Precision recommends the use of Sandisk USB 2.0 sticks
Troubleshooting
If the error persists, disconnect the unit from the AC wall socket and from the rest of your system and contact your authorized
dealer for assistance.
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