Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Using the HDS Digital Overlay Feature

After performing steps 1-12 to capture the self check, the digital overlay feature can be used to determine exact voltages and time frames at any point on the waveform.

1. Select "CONTROL" then "DIGITAL", and then "OK".

2. Use the track ball to place the cursor on your starting point and click the track ball button.

3. Move the cursor to the left or to the right to analyze the data desired.