Sony DCR-TRV10 Service Manual - Page 138
IR Audio Deviation Adjustment CK-84 board, Fig. 5-3-13.
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3. IR Audio Deviation Adjustment (CK-84 board) Mode VTR stop Signal Video : No signal Audio : -400Hz, -7.5dBs, Audio left and right terminal of AUDIO/VIDEO jack Measurement Point AUDIO L terminal and AUDIO R terminal of IR receiver jig (Terminated at 47kΩ) Measuring Instrument Audio level meter Adjustment Page C Adjustment Address 2A Specified Value Signal level: -7.5 ± 1.0 dBs Level difference of L and R: Below 2dB Connection of Equipment: Connect the measuring device as shown in the following figure, and adjust. Main unit Video (Yellow) AUDIO/ VIDEO IR receiver jig AUDIO OUT L R Audio oscillator Attenuator 600 Ω Audio Left (White) Audio Right (Red) Audio level meter 600 Ω: 270 Ω (1-249-410-11) + 330 Ω (1-249-411-11) 47k Ω 47k Ω (1-249-437-11) Fig. 5-3-13. Adjusting method: 1) Select page: 0, address: 01, and set data: 01. 2) Only for AEP/UK model, select page: D, address: 27, set data: 32, and press the PAUSE button of the adjustment remote commander. 3) Connect the audio level meter to the AUDIO L terminal of the IR receiver jig. 4) Select page: C, address: 2A, change the data and set the 400Hz audio signal level to the specified value. 5) Press the PAUSE button of the adjustment remote commander. 6) Connect the audio level meter to the AUDIO R terminal of the IR receiver jig. 7) Check that the 400Hz audio signal level is within the specified value. If outside, repeat from step 3). 8) Only for AEP/UK model, select page: D, address: 27, set data: 12, and press the PAUSE button. 9) Select page: 0, address: 01, and set data: 00. 5-52
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