DSR-PD170/PD170P/PD190P
2-3-5. Track Checking and Adjustment
Y Checking / adjusting methodY If not flat
Run the tracking tape (J-20) in the PLAYBACK mode, and checkIf the waveform at the entrance is bad, rotate TG3.
that the RF waveform is flat at both the entrance and eIf that at the exit.xit is bad, rotate TG6 to flatten the waveform.
PLAY mode
Normal waveformFaulty entrance side
Entrance sideExit side
Faulty exit side
TG3TG6
Blast screwBlast screw
Y Tips for adjustment
The tape path waveform at the entrance and exit should both be flat,
or that at the entrance should be slightly raised and that at exit the Drum
should be lowered. If that at the entrance is slightly lowered
especially, problems such as sound drop may occur.
Raised at the entrance.Lowered at the exit.
If the waveform does not become flat even if the guides are rotated
at the entrance and exit, the characteristics may be faulty of the
tracking tape with time. Check again using a new tracking tape. If
the waveform still does not become flat, the coaster assembly and
drum base block assembly may be faulty.
(For details on how to replace, refer to O2-2-2. Drum Base Block
Assembly or 2-2-9. GL Block �.)Assembly
2-3-6. TG7 Slack Checking and Adjustment
Y Checking / adjusting methodY If the slack occurs
Run the tracking tape (J-20) in the REV mode, and visually checkIf the slack can not be corrected, the TG7 arm block assembly may
from right above the slack between the capstan and be faultyTG6. If the.
slack is great, rotate TG7 to satisfy the specified v(For details on hoalue.w to replace, rO2-2-6. TG7 efer to Arm Block
Assembly�.)
REV mode
TG6Capstan
Check the slack between here.
DrumTolerance : ? 0.3 mm (Visually)
TG7
6-55 |
ACEC
SONY
