Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2012-02-14
Featured PF21GB30 manuals

Panasonic PF21GB300 Color Television Service Manual
This service manual provides detailed safety instructions, maintenance warnings, and adjustment procedures for the Panasonic PF21GB300 color television. It includes sections on X‑ray radiation precautions, high‑voltage handling, and component safety symbols to protect service personnel.
The document also describes the TV’s internal structure, chassis functions, and service data such as TV signal processor specifications, EEPROM details, and switch‑mode power‑supply IC information, enabling technicians to perform accurate diagnostics and repairs. This manual is written in Chinese.
Covers: Safety Instructions and Maintenance · Adjustments · Structure and Chassis Function Description · Service Data · TV Signal Processor (TDA111XX series) · EEPROM AT24C16
Latest PF21GB30 manuals
Panasonic PF21GB300 Color Television Service Manual
Service Manual 32 pages · 428 KB · ZHService manual for the Panasonic PF21GB300 color TV, covering safety, adjustments, chassis description, and service data.
Which document do I need?
Service Manual
Disassembly, diagnostics and part numbers, for repair.
Questions answered in PF21GB30 manuals
What safety precautions are required when servicing the PF21GB300 TV?
Only qualified service personnel should service the TV, and they must follow all safety warnings, including X‑ray radiation precautions and high‑voltage handling.
How is the color purity adjustment performed?
Adjust the vertical and horizontal sync, set brightness and contrast to maximum, then tune the purity magnet until the red and blue raster purities meet the required levels.
