Sony GY-8240UWD Maintenance Manual page 206

4-7. CTL/TC Head Position Adjustment
Confirmation
4. Turn the Power On
5. Set the unit into the line mode
6. Play Back the Alignment Tape
Play back the YR2-1A (IDR: 0 to 200000) with
the REC head. (R FWD mode)
7. Check the CTL/TC Head Position
(1) Set the unit into the tracking adjustment
mode. (Refer to Section 1-11.)
(2) Operate the tracking setting value to bring the
output level in the center of the RF waveform
to the maximum value. Under this condition,
check that the marker is positioned at the
falling edge of the TC26 signal.
(3) Press the switch S110 (ESC) on the DSP-90
board twice to exit the tracking adjustment
mode, and fix the tracking setting value.
(4) Check that the output level in the center
portion of the RF waveform satisfies the
specification.
If the specification is not satisfied, perform steps
8 and later.
4-26
* Alignment tape: YR2-1A (IDR : 0 to 200000)
REC AE
(TP603/DPR-160)
REC AC SEL
(TP401/DPR-160)
TC-26
(TP15/FM-75)
Spec. : When the tracking control volume is
fixed, the output level in the center
portion of the RF envelope waveform
is maximum.
CTL/TC Head Position Check
CTL/TC head
Marker
A ch E ch
GY-8240UWD
GY-8240FC