Sony GY-8240UWD Maintenance Manual page 259

5-4. DIAG Mode
(3) To end the check, enter " : ".
When the above fails:
When the operations of the S reel are faulty
. Check the S reel motor drive circuit (SV-205 board).
. Check the S reel motor.
When the S reel rotational speed is not constant
. Execute the SV Check (Refer to Section 5-9-4).
. Check the output from the S reel FG sensor.
. Check the S reel FG amplifier circuit (SV-205 board).
When the operations of the S reel brake are faulty
. Check the S reel brake solenoid.
When the operations of the T reel are faulty
. Check the T reel motor drive circuit (SV-205 board).
. Check the T reel motor.
When the T reel rotational speed is not constant
. Execute the SV Check (Refer to Section 5-9-4).
. Check the output from the T reel FG sensor.
. Check the T reel FG amplifier circuit (SV-205 board).
When the operations of the T reel brake are faulty
. Check the T reel brake solenoid.
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GY-8240UWD
GY-8240FC