1. పరిచయం
1.1 ఉత్పత్తి ముగిసిందిview
The JL AUDIO LoC-22 is a 2-channel line output converter designed to integrate aftermarket amplifiers with factory car audio systems that lack RCA pre-amp outputs. It efficiently converts high-level (speaker-level) audio signals from a factory head unit or amplifier into low-level (RCA pre-amp level) signals, making them compatible with aftermarket amplifiers. This device is essential for upgrading your car's audio system while retaining the original head unit.
1.2 భద్రతా సమాచారం
- ఏదైనా ఇన్స్టాలేషన్ ప్రారంభించే ముందు ఎల్లప్పుడూ వాహనం యొక్క బ్యాటరీ నెగటివ్ టెర్మినల్ను డిస్కనెక్ట్ చేయండి.
- షార్ట్ సర్క్యూట్లను నివారించడానికి అన్ని వైరింగ్లు సరిగ్గా ఇన్సులేట్ చేయబడిందని నిర్ధారించుకోండి.
- Mount the LoC-22 securely in a dry location, away from excessive heat or moisture.
- ఇన్స్టాలేషన్ ప్రక్రియలోని ఏదైనా భాగం గురించి మీకు ఖచ్చితంగా తెలియకపోతే, ప్రొఫెషనల్ కార్ ఆడియో ఇన్స్టాలర్ను సంప్రదించండి.
- Do not attempt to modify the unit. Unauthorized modifications may void the warranty and pose safety risks.
2 ఫీచర్లు
- 2-Channel Speaker-Level to RCA Line Output Conversion
- సర్దుబాటు అవుట్పుట్ స్థాయి నియంత్రణ
- Selectable Turn-On Mode (DC Offset or Signal Sensing)
- Selectable Input Load (Low Z or Normal)
- Compact and Durable Design
- Integrated Remote Turn-On Output for Aftermarket Ampజీవితకారులు
3. ప్యాకేజీ విషయాలు
- JL AUDIO LoC-22 Line Output Converter Unit
- Wiring Harnesses (for power/remote and speaker inputs)
- వినియోగదారు మాన్యువల్ (ఈ పత్రం)
4. ఉత్పత్తి ముగిసిందిview and Component Identification
Familiarize yourself with the various components and connections of your LoC-22 unit.
Figure 4.1: JL AUDIO LoC-22 Angled View
This image provides an overall angled view of the LoC-22 unit, highlighting its compact size and the general layout of its inputs, outputs, and controls. The black metal casing is visible, along with mounting tabs on the sides.
Figure 4.2: JL AUDIO LoC-22 Top View
ఈ పై నుండి క్రిందికి view clearly shows the main labels and controls on the unit's surface. Key indicators include 'Input Load', 'Clipping' LED, 'Output Level' potentiometer, 'Line Outputs' (RCA jacks), and the 'Turn-on Mode' switch. The JL Audio logo and 'LoC-22 Line Output Converter' text are also prominent.
Figure 4.3: JL AUDIO LoC-22 Input Side View
This image details one side of the LoC-22, specifically showing the multi-pin terminal block for speaker-level inputs (L+, L-, R+, R-). Below the input terminal, the 'Input Load' switch is visible, offering 'Low Z (60 Ω)' and 'Normal (20 kΩ)' settings for impedance matching.
Figure 4.4: JL AUDIO LoC-22 Output Side View
ఈ view displays the opposite side of the LoC-22. It features the power connector terminal block (+12V, Ground, Remote Out), the two RCA 'Line Outputs' (Left and Right), and the 'Turn-on Mode' switch, which can be set to 'DC Offset' or 'Signal' for automatic turn-on functionality.
5. సెటప్ మరియు ఇన్స్టాలేషన్
5.1 మౌంటు
- Choose a secure, dry location within the vehicle, away from direct heat sources or moving parts.
- యూనిట్ చుట్టూ తగినంత వెంటిలేషన్ ఉండేలా చూసుకోండి.
- Use appropriate screws to mount the LoC-22 to a solid surface using its integrated mounting tabs.
5.2 వైరింగ్ కనెక్షన్లు
ఏదైనా కనెక్షన్లు చేసే ముందు, వాహనం యొక్క బ్యాటరీ నెగటివ్ టెర్మినల్ డిస్కనెక్ట్ చేయబడిందని నిర్ధారించుకోండి.
- పవర్ కనెక్షన్: Connect the +12V terminal of the LoC-22 to a constant +12V power source (e.g., directly to the battery with an inline fuse, or a fused accessory wire). Connect the Ground terminal to a solid chassis ground point.
- Speaker-Level Inputs: Connect the speaker output wires from your factory head unit or amplifier to the LoC-22's speaker input terminal block (L+, L-, R+, R-). Ensure correct polarity.
- RCA Line Outputs: Connect standard RCA cables from the LoC-22's 'Line Outputs' to the RCA inputs of your aftermarket ampజీవితకాలం.
- Remote Turn-On Output: Connect the 'Remote Out' terminal of the LoC-22 to the remote turn-on input of your aftermarket amplifier. This will turn on the amplifier when the LoC-22 detects an audio signal or DC offset, depending on the selected turn-on mode.
6. ఆపరేటింగ్ సూచనలు
6.1 Turn-on Mode Selection
The LoC-22 offers two methods for automatic turn-on:
- DC ఆఫ్సెట్: Select this mode if your factory head unit or amplifier produces a DC offset on its speaker outputs when turned on. This is the most common and reliable method for many modern factory systems.
- సిగ్నల్: Select this mode if your factory head unit or amplifier does not produce a DC offset, but instead provides an audio signal when turned on. The LoC-22 will detect the presence of an audio signal to generate the remote turn-on output.
Set the 'Turn-on Mode' switch on the unit to the appropriate setting based on your vehicle's factory system.
6.2 Input Load Selection
The 'Input Load' switch allows you to optimize the LoC-22's input impedance for compatibility with various factory audio systems:
- Normal (20 kΩ): This is the standard setting and should work with most factory systems.
- Low Z (60 Ω): Some factory systems, particularly those with advanced diagnostic features, may require a lower impedance load to prevent them from detecting an open circuit and shutting down the audio output. If you experience audio cut-outs or errors, try this setting.
Set the 'Input Load' switch on the unit to the appropriate setting. Start with 'Normal' and switch to 'Low Z' if issues arise.
6.3 Adjusting Output Level
The 'Output Level' potentiometer allows you to match the output voltage of the LoC-22 to the input sensitivity of your aftermarket amplifier. This ensures optimal signal transfer and prevents clipping.
- Turn the 'Output Level' control fully counter-clockwise (minimum).
- Turn on your car's audio system and play a dynamic piece of music at about 75% of the head unit's maximum volume.
- Slowly turn the 'Output Level' control clockwise until the 'Clipping' LED on the LoC-22 just begins to flicker. Then, back off slightly until the LED remains off.
- Adjust the gain controls on your aftermarket amplifier according to its manufacturer's instructions, ensuring no clipping occurs at the ampజీవితకాలం ఎస్tage.
7. నిర్వహణ
The JL AUDIO LoC-22 is designed for reliable operation with minimal maintenance.
- యూనిట్ను శుభ్రంగా మరియు దుమ్ము లేకుండా ఉంచండి. శుభ్రం చేయడానికి మృదువైన, పొడి వస్త్రాన్ని ఉపయోగించండి.
- కఠినమైన రసాయనాలు లేదా రాపిడి క్లీనర్లను ఉపయోగించవద్దు.
- అన్ని వైరింగ్ కనెక్షన్లు సురక్షితంగా మరియు తుప్పు పట్టకుండా ఉన్నాయని నిర్ధారించుకోవడానికి కాలానుగుణంగా వాటిని తనిఖీ చేయండి.
8. ట్రబుల్షూటింగ్
If you encounter issues with your LoC-22, refer to the table below for common problems and solutions.
| సమస్య | సాధ్యమైన కారణం | పరిష్కారం |
|---|---|---|
| No audio output from ampజీవితకాలం. | No power to LoC-22. సరికాని వైరింగ్. Incorrect Turn-on Mode. | Check +12V and Ground connections. Verify all speaker input and RCA output connections. Try switching the 'Turn-on Mode' between 'DC Offset' and 'Signal'. |
| Distorted audio / Clipping LED constantly on. | Output level set too high. ఇన్పుట్ సిగ్నల్ చాలా బలంగా ఉంది. | Reduce the 'Output Level' on the LoC-22. Ensure head unit volume is not excessively high. |
| Factory head unit shuts off or displays error. | Incorrect Input Load setting. | Switch the 'Input Load' to 'Low Z (60 Ω)'. |
| Ampలైఫైయర్ ఆన్ చేయదు. | Incorrect Turn-on Mode. Remote Out wire disconnected. | Try switching the 'Turn-on Mode'. Check the connection from LoC-22 'Remote Out' to amplifier remote input. |
9. స్పెసిఫికేషన్లు
| ఫీచర్ | స్పెసిఫికేషన్ |
|---|---|
| మోడల్ సంఖ్య | LoC-22 |
| ఛానెల్ల సంఖ్య | 2 |
| కొలతలు (L x W x H) | 7.77 x 11.99 x 3.12 సెం.మీ (3.06 x 4.72 x 1.23 అంగుళాలు) |
| బరువు | 370 గ్రాములు (0.82 పౌండ్లు) |
| Input Load Options | Normal (20 kΩ), Low Z (60 Ω) |
| Turn-on Mode Options | DC Offset, Signal Sensing |
| UPC | 699440984133 |
10. వారంటీ సమాచారం
JL AUDIO products are engineered and manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and product. Please retain your proof of purchase for warranty claims. For detailed warranty information, please refer to the warranty card included with your product or visit the official JL AUDIO webసైట్.
11. కస్టమర్ మద్దతు
For technical assistance, troubleshooting, or general inquiries regarding your JL AUDIO LoC-22, please contact JL AUDIO customer support. You can find contact information, FAQs, and additional resources on the official JL AUDIO webసైట్:
When contacting support, please have your product model number (LoC-22) and a detailed description of your issue ready.
