Teac A-3340S - Page 24

VU METER CALIBRATION —
1. Play the 400 Hz tone (1% THD) in Section 1 of the Test Tape.
2. With OUTPUT switches FRONT and REAR in the TAPE position, ad-
just VR-202/204 for a reading of 0 VU on the VU meters.
FREQUENCY RESPONSE
1. Set Tape SPEED to HIGH position. Using Test Tape YTT-1004,
play the Test Tones from 15 kHz down to 40 Hz (recorded at
10 dB below operating reference level).
2. Compare the readings obtained on the Test Set with the res-
ponse limits given in Fig. 11-2.
3. In case of any deviation in the response curve, check head
azimuth alignment, clean the heads, then adjust VR-101/103
for the best response.
4, Set Tape SPEED to LOW, using Test Tape YTT-1003.
Frequency Response check at LOW speed. If required, adjust
VR-102/104 as in HIGH position.
RESPONSE IN 4B
50 100 ~ BOO mK 3k «10K 20K 22k 50K
FREQUENCY IN Hx
Fig. 11-2 Frequency Response Limits -Playback-
SIMUL SYNC FREQUENCY RESPONSE
15 ips and 7-1/2 ips response should be identical.
Frequency response in SIMUL~SYNC function is measured as in
normal operation.
s 7 '/altps)
RESPONSE IN d&
FRECUENCY IN Hz