![]() Anyone have a schematic or service manual? They were examined using HUNG CHANG 5804 40MHz oscilloscope and HAMEG HM8131-2 15MHz gen- erator. I don't have the service manual or a schematic so this is a nightmare to figure out. I have this Protek P3502 (aka Hung Chang 3502) oscilloscope that has a couple of power resistors that got cooked. To open downloaded files you need acrobat reader or similar pdf reader program. Service manuals, schematics, eproms for electrical technicians. If the shipping cost has not been prepaid, or the RMA number or any of the required information and documents are missing, the same procedure applies.Ī return and refund is approved once the ISS Group has received the goods and has carried out necessary checks to ensure that the product is fault free and that the conditions mentioned above have all been met.Download HUNG CHANG OS-620 OSCILLOSCOPE service manual & repair info for electronics experts. Returns arriving at ISS Group’s warehouse in an envelope or using outer packing material that is not approved by the carrier will be returned without action as they cannot be accepted for return and refund. The goods must be properly prepared, using packing material approved by the carrier (for example corrugated cardboard). For any return shipment, the shipping cost shall be paid for by the customer, a copy of the order and invoice, as well as the RMA number, shall be sent along with the goods. The RMA number is valid for fourteen (14) days, during which time the product shall be delivered to the ISS Group warehouse location specified on the RMA note. Note that obtaining a RMA number does not mean that a refund request has been approved. For all return and refund cases, the buyer is responsible for shipping costs. When the request has been received, an RMA number will be sent by email to be used for return of goods. For all return and refund requests, contact the ISS Group customer service department by visiting The LAB eShop website. Returns and refunds are not accepted for software, picture- or audio files where the seal has been broken (also includes technical seals, for example serial numbers), or products that have been custom ordered. For a product where the original packaging is damaged or has disappeared, where components are missing, and/or where the product has been used, the return and refund option is not valid. A description of a consumer’s right to a ”cooling-off” period is specified under the section ”Distance agreements - Consumers rights” under Terms of Service.įor all products from the standard product range, in their original packaging, still unopened (also applicable for CD/Software covers), the ISS Group accepts return and refund within fourteen (14) days from date of invoice. ![]()
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