Raymarine RAY 210VHF Trouble Shooting Guide, Weather Alert Frequency Adjustment Receiver

5.3.7Weather Alert Frequency Adjustment (RECEIVER)

1)Connect an RF signal generator to the antenna connector. Set the RF signal generator as follows:

Frequency: 162.550MHz with no modulation

Output level: 60dB µ

2)Select the weather channel WX1.

3)Connect a frequency counter to TP1 on the RF Board and adjust RV6 to obtain 1050kHz +/-5Hz on the frequency counter.

5.4TROUBLE SHOOTING GUIDE

Table 5-4 provides a general trouble-shooting chart for use by a technician to isolate circuitry failures to specific functional areas within the RAY 210.

5.4.1 Master Reset

The first step in attempting to clear a problem associated with the general operation of this radio is to perform a MASTER RESET. This can be done by pressing the [FUNC] and [16] keys simultaneously, and while holding, turning the power on. This should be performed anytime a component or PCB within the radio is replaced. This function will clear the RAY210 memory and will return it to its factory settings.

It should be noted that micro-components within the radio are generally not field replaceable, therefore, repairs to the radio typically go down to the board level only. A replacement parts list for the RAY210 can be found in Section 6.

Table 5-4 TROUBLESHOOTING CHART

Item	Symptom	Possible Cause
Number
1	Unit does not turn on	a. Defective power switch
		b. 10 amp. fuse in power line open
		c. Diode D24 open
		d. Noise filter L309 open
		e. Capacitor C358 and C369 shorted
		f. Defective regulator IC15 (5V)
2	No sound with AF signal	a. Defective internal speaker
	applied to pin 1 of IC305	b. Defective IC305 and/or associated
		components
3	No sound with AF signal	a. Defective volume control
	applied to volume	b. Defective mute circuitry (Q6 IC1)
	control	[CPU AF Board]

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