1.Direct Spark Ignition (DSI) Troubleshooting Terms (definitions)

a.DSI (Direct Spark Ignition) MODULE "RED" L.E.D. (Light Emitting Diode) INDICATOR LIGHT

This "red" L.E.D. (light emitting diode) light is located in the upper right corner of the DSI (Direct Spark Ignition) module (refer to the top illustration on page 30). This is a diagnostic indicator that simplifies the operational and troubleshooting procedures of the DSI system.

b.LOCK-OUT MODE - DSI (Direct Spark Ignition) module "red" L.E.D. (light emitting diode) indicator light stays on continuously. This indicates there is a system fault and most likely the fault is the DSI module itself.

c.FLAME-OUT - burner flame shut down by the DSI (Direct Spark Ignition) module due to lack of flame verification. This condition occurs only after ignition is evident but is lost. The DSI system will immediately attempt to relight the burner.

d.RECYCLE - flame has been sensed but lost. Initiate a new sequence (THERE ARE NO RETRIES).

2.Troubleshooting and System Basic Diagnosis

a.Preliminary Steps

The following steps must be preformed to minimize the time required to isolate cause of fault.

1)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator light is off (no "red" or "green" light).

a) Check for voltage (approximately 24 VAC) across the

DSI model terminals "TH" and "GND...

If voltage (approximately 24 VAC) is evident, then, there is a malfunction within the DSI module itself, and it must be replaced.

If there is no voltage present, then problem is not the DSI module or the ignition system, the problem elsewhere in the dryer (i.e., dryers' heat circuit [sail switch, hi-limit circuits], etc.).

2)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator lights "red" for approximately 1.5 seconds (prepurge). This indicates that ALL the controls (including ALL the safety circuits) are functioning and power is being supplied to the DSI module.

3)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator lights "green." This indicates a normal heating cycle. This also indicates that the preliminary diagnostics of the module has confirmed that the DSI module is functional.

4)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator lights "red" continuously...

LOCK-OUT MODE. This indicates that there is a system fault and most likely the fault is internal to the DSI module. To make sure, open and close the main door. Restart the dryer...if the module LOCKS-OUT ("red" L.E.D. indicator light stay on continuously) again, replace the DSI module.

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ADC AD-310 service manual
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AD-310 specifications

The ADC AD-310 is a versatile and compact audio digital converter designed to meet the demands of audio professionals and enthusiasts alike. With its advanced technology and user-friendly features, the AD-310 stands out in the crowded marketplace of audio interface solutions.

One of the main features of the ADC AD-310 is its high-resolution audio conversion capabilities. Supporting sample rates up to 192 kHz and resolutions of up to 24 bits, the AD-310 ensures that audio captures are of the highest fidelity, making it ideal for recording, mixing, and mastering tasks. This level of detail is crucial for audio professionals who require precision and clarity in their audio signals.

Another standout characteristic of the ADC AD-310 is its robust connectivity options. It comes equipped with both USB and optical ports, enabling seamless integration with a variety of digital audio workstations (DAWs) and other audio equipment. This flexibility allows users to choose their preferred connection method, enhancing the overall workflow and efficiency during production.

The AD-310 also features advanced analog-to-digital and digital-to-analog converters, which contribute to its impressive dynamic range and low total harmonic distortion (THD). This ensures that the audio output is clean and true to the original signal, making it suitable for both recording and playback applications. Additionally, the unit incorporates real-time monitoring capabilities, allowing users to hear adjustments as they make them, ensuring the perfect mix every time.

For ease of use, the ADC AD-310 is designed with a simple, intuitive interface. Its layout includes clearly labeled controls and LED indicators, allowing users to quickly assess levels and settings at a glance. This design philosophy extends to its compact form factor, making it easy to transport and integrate into any studio setup, whether it be in a professional environment or home studio.

With its combination of high-quality audio processing, flexible connectivity, and user-friendly design, the ADC AD-310 is an excellent choice for anyone looking to elevate their audio production experience. Whether used by professionals or hobbyists, the AD-310 delivers performance and reliability that sets it apart in the audio converter market.
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