Sony DCR-TRV10 Service Manual - Page 137
IR TRANSMITTER ADJUSTMENTS, IR Video Carrier Frequency Adjustment, CK-84 board
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3-5. IR TRANSMITTER ADJUSTMENTS Adjust using a IR receiver jig (J-6082-383-A). Switch setting: LASER LINK ON (Red LED is lit) 1. IR Video Carrier Frequency Adjustment (CK-84 board) Mode VTR stop Signal Arbitrary Measurement Point Pin 5 of CN003 of IR receiver jig (RF) (Or Pin !§ of IC7501 of CK-84 board) Measuring Instrument Frequency counter Adjustment Page C Adjustment Address 28 Specified Value f = 11.85 ± 0.05 MHz Connection of Equipment Connect the measuring device as shown in the following figure, and adjust. Main unit IR receiver jig CN003 pin 5 Frequency counter Fig. 5-3-10. Adjusting method: 1) Select page: 0, address: 01, and set data: 01. 2) Select page: 3, address: 0C, set data: 08, and press the PAUSE button of the adjustment remote commander. 3) Select page: C, address: 28, change the data, and set the video carrier frequency (f) to the specified value. 4) Press the PAUSE button of the adjustment remote commander. 5) Select page: 3, address: 0C, set data: 00, and press the PAUSE button of the adjustment remote commander. 6) Select page: 0, address: 01, and set data: 00. 2. IR Video Deviation Adjustment (CK-84 board) Mode VTR stop Signal Arbitrary Measurement Point VIDEO OUT terminal of IR receiver jig (Terminated at 75 Ω) Measuring Instrument Oscilloscope Adjustment Page C Adjustment Address 29 Specified Value A = 1.00 ± 0.05 V Connection of Equipment: Connect the measuring device as shown in the following figure, and adjust. Main unit IR receiver jig VIDEO OUT 75 Ω Oscilloscope 75 Ω (1-247-804-11) Fig. 5-3-11. Adjusting method: 1) Select page: 0, address: 01, and set data: 01. 2) Select page: 3, address: 0C, set data: 02, and press the PAUSE button of the adjustment remote commander. 2) Select page: C, address: 29, and change the data, set the video signal amplitude (A) to the specified value. 4) Press the PAUSE button of the adjustment remote commander. 5) Select page: 3, address: 0C, set data: 00, and press the PAUSE button of the adjustment remote commander. 6) Select page: 0, address: 01, and set data: 00. A H Fig. 5-3-12. 5-51