TDA11105 PS/N3/3 Substitutes – Complete CRT TV Repair Guide
๐งฐ Introduction
The TDA11105 PS/N3/3 IC is widely used in LG, Philips, and universal CRT TV kits. Technicians often struggle to find the original IC. This guide provides compatible numbers, substitute ICs, equivalent series, and practical repair tips to simplify your repair workflow.
Using the correct substitutes ensures optimal TV functionality and longevity.
⚙️ Importance of IC Substitution
- Availability: Original ICs may be unavailable; substitutes often provide the only solution.
- Cost Efficiency: Substitute ICs are cheaper, reducing repair costs.
- Compatibility: Correct substitutes maintain TV performance.
- Service Simplification: Universal CRT kits often support substitute ICs for better compatibility.
๐งฉ TDA11105 IC Substitutes – Master Table
| Original IC | Compatible / Substitute ICs | Equivalent Series | Notes |
|---|---|---|---|
| TDA11105 PS/N3/3 | TDA11105PS/N1/2, TDA11105PS/N2/3 | Same Family | EEPROM reset may be required |
| TDA11105PS/N2/3 | TDA11105PS/N3/3, TDA11105PS/N1/2 | Philips Equivalent | Adjust service mode after replacement |
| TDA11105PS/N1/2 | TDA11105PS/N3/3, TDA11104PS/N2/3 | Cross-Compatible | Check voltage compatibility |
| TDA11104PS/N2/3 | TDA11105PS/N3/3 | Jungle IC Series | Adjust color via EEPROM |
| TDA11106PS/N2/3 | TDA11105PS/N3/3 | Higher Series | Check vertical oscillator |
๐ง Vertical IC Substitutes
| Original Vertical IC | Substitute ICs | Notes |
|---|---|---|
| LA78040 | LA78041, LA78045 | Use proper heat sink |
| LA78041 | LA78040, LA78045 | Verify supply voltage |
| TDA8177 | TDA8172, TDA8170 | Adjust vertical height in service mode |
| TDA8356 | TDA8350Q, TDA8357J | Check PCB layout compatibility |
Tip: Fine-tune picture size and linearity in service mode after replacing vertical ICs.
๐ ️ Practical Repair Tips
- Service Mode: Adjust geometry, color balance, and sound settings.
- EEPROM Programming: Reset or reprogram EEPROM (24C08, 24C16) when required.
- Voltage Testing: Verify voltage levels with a multimeter.
- Heat Management: Apply proper heat sinks and thermal paste if ICs run hot.
- Signal Compatibility: Ensure support for PAL/NTSC/SECAM.
- Pinout Verification: Always check substitute IC pinout.
๐ Best Practices
- Check datasheets before using substitutes.
- Maintain a list of tested and verified substitutes.
- Substitute ICs may require minor adjustments in service mode.
- Incorrect EEPROM programming can damage the TV.
- Cross-reference substitute ICs with original family for best results.
๐ Conclusion
This enhanced guide provides complete information on TDA11105 PS/N3/3 substitutes, equivalent series, practical tips, and best practices. Follow all steps including service mode adjustments, EEPROM verification, voltage testing, and heat management to ensure successful repairs.
Call to Action: Share this guide with technicians and post your experiences or questions in the comment section.
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