Lincoln Electric V300-PRO manual Next Step Test

						Next
	Step			Test		Test
		Test	Check	Result	Conclusion	Step	Repair Action
7		D13 Input	9 (pos) to H1 (neg)	>1K ohms	OK	cont
		Rectifier
				<100 ohms	Shorted	4-5	Replace D13, inspect S1,
							test C1 and C2
			9 (pos) to A (neg)	>1K ohms	OK	cont
				<100 ohms	Shorted	4-5	Replace D13, inspect S1,
							test C1 and C2
			9 (pos) to H5 (neg)	>1K ohms	OK	cont
				<100 ohms	Shorted	4-5	Replace D13, inspect S1,
							test C1 and C2
			12 (neg) to H1 (pos)	>1K ohms	OK	cont
				<100 ohms	Shorted	4-5	Replace D13, inspect S1,
							test C1 and C2
			12 (neg) to A (pos)	>1K ohms	OK	cont
				<100 ohms	Shorted	4-5	Replace D13, inspect S1,
							test C1 and C2
			12 (neg) to H5 (pos)	>1K ohms	OK	cont
				<100 ohms	Shorted	4-5	Replace D13, inspect S1,
							test C1 and C2
			9 (neg) to H1 (pos)	<100 ohms	OK	cont
				>1K ohms	Open	4-5	Replace D13, inspect S1,
							test C1 and C2
			9 (neg) to A (pos)	<100 ohms	OK	cont
				>1K ohms	Open	4-5	Replace D13, inspect S1,
							test C1 and C2
			9 (neg) to H5 (pos)	<100 ohms	OK	cont
				>1K ohms	Open	4-5	Replace D13, inspect S1,
							test C1 and C2
			12 (pos) to H1 (neg)	<100 ohms	OK	cont
				>1K ohms	Open	4-5	Replace D13, inspect S1,
							test C1 and C2
			12 (pos) to A (neg)	<100 ohms	OK	cont
				>1K ohms	Open	4-5	Replace D13, inspect S1,
							test C1 and C2
			12 ( pos) to H5 (neg)	<100 ohms	OK	cont
				>1K ohms	Open	4-5	Replace D13, inspect S1,
							test C1 and C2

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