Brand: PIONEER
Category: Navigation System
Document Type: Parts/Service
Language: EN
Parts/Service for AVIC-X940BT
Uploaded: Nov. 21, 2025, 9:15 p.m.
Manual Publish Date: 2012-02-01
- Safety Precautions: Follow safety instructions, handle ICs carefully, conduct line process to original status after repair, be careful of static charge, turn off power before disassembling, keep distance from focus lens, do not look at laser beam for extended periods, power adjust replaced mechanical areas, be aware of hot surfaces.
- Soldering Notes: Use lead-free solder and appropriate soldering iron for repairs. Lead-free solders have higher melting points and bond strengths.
- Specifications: Details on power source, current consumption, dimensions, weight, GPS receiver, reception system, FM/AM tuner, audio output, display, DVD drive capabilities, USB, SD, and Bluetooth compatibility.
- Service Precautions: General safety, soldering notes, temperature protection, FAN control, BT cable wiring, and EJECT LOCK MODE for DVD mechanism are described.
- Check Points After Servicing: Verify customer complaint resolution, check playback error rates for DVD, confirm display, audio, and operations for DVD, CD, and FM/AM tuner. Ensure correct GPS positioning and gyro sensor function. Check map display and remote-control operation. Delete operating data and ensure no media is inside the product. Check appearance.
- Cleaning: Specific tools and procedures for cleaning DVD pickup lenses and fans are provided.
- Block Diagrams: Overall connection diagrams illustrate the unit's internal component connections.
- Jigs List: A list of necessary jigs and cables for servicing is provided.
- Parts Lists: Comprehensive lists of circuit symbols, part numbers, and their respective locations/circuit symbol and number are included.
Troubleshooting and error codes
| Item to be checked regarding video | Item to be checked regarding audio |
|---|---|
| Block-noise | Distortion |
| Horizontal noise | Noise |
| Dot noise | Volume too low |
| Disturbed image (video jumpiness) | Volume too high |
| Too dark | Volume fluctuating |
| Too bright | Sound interrupted |
| Mottled color |