The document is about a product called XS601 CH-02-4A(BLACK) and includes its circuit diagram. The product features various electronic components and connection methods, suitable for specific application scenarios.
This manual contains the schematic and component details for the selective test circuit used with Changhong PF21300H series models. It lists part numbers, values, and connections for resistors, capacitors, transistors, and integrated circuits.
The document also identifies test points and interface definitions required for product testing and debugging, helping technicians verify and service the devices. This manual is written in Chinese.
The manual covers PF21300H, PF21366H, PF21399H and PF21800H models.