Philips DVP620VR Service Manual page 87

1. Tape Interchangeability Alignment
Note:
To do these alignment procedures, make sure that the
Tracking Control! Circuit is set to the preset position
every time a tape is loaded or unloaded. (Refer to
page 2-3-4, procedure 1-C, step 2.)
Equipment required:
Dual Trace Oscilloscope
VHS Alignment Tape (9965 000 14515)
Guide Roller Adj. Screwdriver
Flat Screwdriver (Purchase Locally)
Note: Before starting this Mechanical Alignment, do all
Electrical Adjustment procedures.
Flowchart of Alignment for tape traveling
Loading (Use a blank tape.)
Adjust the height of the Guide Rollers
(Supply side and take-up side).
(Use a blank tape.) (Page 2-3-3)
Check to see that the tape is not creasing
and that there is no slack on the supply
and take-up side Guide Rollers.
(Use a blank tape.) 1-A
Adjust the X Value for maximum envelope.
(Page 2-3-3) (Use Alignment Tape.) 7.6
Adjust the envelope. (Page 2-3-4) 1-C
Check the envelope.
OK
Adjust the Audio Section.
(Azimuth Alignment) (Page 2-3-4) 1-D
Check the audio output. «pp
OK
Check the following:
1. X Value (Page 2-3-3)
2. Envelope (Page 2-3-4)
2-3-2
No good
No good
Do the final tape-traveling test to see that
the tape runs normally in play mode with-
out creasing or slacking. 1-
OK
Check to see that the tape is not creasing
and that there is no slack on the REV Post.
(Use a blank tape.) 1-E
OK
Completion
Adjust the X value and envelope. 7.5 7.¢
D5P4HSMA_PC