CXA2064M
Adjustment Method
1. Input level adjustment
1) Connect components as shown in Fig. 1.
2) Set the US MPX encoder output to MONO 100Hz 100% modulation.
3) Adjust the "ATT" so that COMPIN (Pin 7) level goes to 100mVrms (±0.5dB).
2.Separation adjustment
1) Mode control pin are set to FOMO (Pin 17): L, M1 (Pin 18): L, MUTE (Pin 19): L.
2) Set the US MPX encoder ouput to Stereo Lch-only 300Hz 30% modulation, NR-ON.
Then, adjust the variable resistor of SUBOUT (Pin 2) to reduce the TVOUT-R output to the minimum.
3) Next, set the frequency only of the input signal to 3kHz and adjust the variable resistor of VEWGT (Pin 29)
to reduce the TVOUT-R output to the minimum.
4) The adjustments in 2 and 3 above are performed to optimize the separation.
CXA2064M
ATT
US MPX encoder
4.7µ
COMPIN (Pin 7)
Fig. 1. Adjustment setup
Adjust this IC through Tuner and IF when this IC is mounted on the set.
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SONY [ SONY CORPORATION ]
