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)

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Solar Sensor: Testing and Inspection

Steps 1 - 3:

Step 4:

DIAGNOSTIC PROCEDURE

SYMPTOM: Sunload sensor circuit is open or shorted. (25 or -25 is indicated on auto amp. as a result of conducting Self-diagnosis STEP 2.)

ELECTRICAL COMPONENT INSPECTION

Sunload Sensor
Measure voltage between auto amp. terminal 12 and body ground.
If NG, replace sunload sensor.
- When checking sunload sensor, select a place where sun shines directly on it.