Description
The CX-131A (also marked as CX131A) is an original vintage Sony-manufactured bipolar integrated circuit (IC) cataloged under the official Sony service part number 8-751-310-00. This specialty semiconductor functions primarily as a video signal synchronization separator, automatic gain control (AGC), and modulation processing circuit.
Key Features & Specifications:
- Function: Video Signal Sync Separator / AGC / Modulation Circuit
- Package Type: 24-Pin Dual In-Line Package (DIP) featuring an integrated heat sink center tab for enhanced thermal dissipation.
- Equivalents/Cross-References: Directly matches industry standard replacements like the ECG1601.
- Applications: Heavily deployed across early vintage Sony Betamax, U-Matic, and 1/2" VHS video tape recorders (VCRs), as well as classic broadcast video processing boards and television chassis.
- Manufacturer: Sony Corporation (Japan)
An authentic, rare New-Old-Stock (NOS) replacement component. Essential for bench service technicians and retro media restoration enthusiasts working on legacy video cassette decks, analog production units, and vintage CRT signal decoding stages.

