Tape Path Adjustment Confirmation - Sony HDV HVR-1500 Service Manual

7-4. Tape Path Adjustment Confirmation

When Section 7-2, "Tape Path Adjustment" is completed, be sure to perform Section
7-3. "RF Switching Position Adjustment".
To perform tracking adjustment using the alignment tape (XH2-1AST), refer to the
following items.
. For the procedure to enter the maintenance menu, refer to Section 4-2-2.
. For the procedure to exit the maintenance menu, refer to Section 4-2-3.
. For the operating procedure of the maintenance menu during the tracking adjust-
ment, refer to Section 7-1.
Tools
. Alignment tape, XH2-1AST :
. Tape path adjustment board, DJ-461 :
. Tape path tool connection cable, DJ-472 :
. Tape path tool power supply cable, DJ-500 : J-6445-000-A
. DC regulated power supply
. Dual trace oscilloscope
Check Procedure
1. Connect the oscilloscope as follows :
CH-1 : TP2/DJ-461
CH-2 : TP3/DJ-461
TRIG : CH-2
2. Insert the alignment tape XH2-1AST on the VTR.
3. Put the unit into PLAY mode.
4 Adjust the variable VOLTS/DIV control of the
oscilloscope so that the maximum amplitude of the RF
waveform becomes the three DIVISIONs on the
oscilloscope.
5. Measure the minimum amplitude of the RF waveform,
and confirm that the amplitude difference between the
maximum and the minimum of the RF waveform
satisfies the specification.
6. Confirm that fluctuation of the RF waveform satisfies
the specification.
HVR-1500
8-967-999-02
J-6444-610-B
J-6444-720-A
4/5 Div
4/5 Div
or less
max.
min.
Specification : max. _ min. < 4/5 Div
Fluctuations
Specification : Fluctuation (
4/5 divisions or less.
3 Div
3 Div
) with in
7-13