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4.0 ± 0.5dB
TRACE B
TRACE A
2.5M
8. Add "+ 90" to the value of E01 REC CURR L1 and
E03 REC CURR L2
(Ex. In case of -50 → +40)
9. After adjustment, compare the spectrum of Master
Playback and Confidence Playback.
1.0 ± 0.5dB
10M
4-6-37. Comparison of the Spectrum of
Master PB and Confidence PB (25M Lch)
Board
RF EQ(H3)
Specification
Test Point
TP104, TG101, TP2, TG1
Adjustment
Point
Input Signal
INT SIG color bar
Mode
REC, PLAY
R/P Tape• A VFM3580KM
Tape
M.EQ
Spectrum Analyzer
1.
Place the unit in the REC mode.
2.
Store the Confidence Playback spectrum in
TRACE-B.
3.
Playback a 25M Master Tape.
4.
Store the Master Playback spectrum in TRACE-A.
5.
Confirm the level at 2.5MHz is as follows.
TRACE-A Level - TRACE-B Level = ± 2.0 dB
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