Problem Symptoms Table
HINT:
Inspect the "Fuse" and "Relay" before confirming the suspected area as shown in the table below.
RADIO RECEIVER:
RADIO RECEIVER
| Symptom | Suspected area | See |
|---|---|---|
| Pressing power switch does not start system. | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Radio receiver | RADIO RECEIVER | |
| Radio receiver cannot be dimmed in night time. | 1. Illumination circuit | ILLUMINATION CIRCUIT |
| 2. Radio receiver | RADIO RECEIVER | |
| No sound can be heard. (Separate type amplifier) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Stereo component amplifier power source circuit | STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT | |
| 3. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 4. Speaker circuit | SPEAKER CIRCUIT | |
| 5. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| 6. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 7. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |
| 8. Radio receiver | RADIO RECEIVER | |
| No sound can be heard. (Built-in type amplifier) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Speaker circuit | SPEAKER CIRCUIT | |
| 3. Radio receiver | RADIO RECEIVER | |
| Sound quality is bad in all modes. (Volume is too low.) (Separate type amplifier) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Stereo component amplifier power source circuit | STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT | |
| 3. Speaker circuit | SPEAKER CIRCUIT | |
| 4. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 5. Proceed to "Sound Quality is Bad in All Modes" | SOUND QUALITY IS BAD IN ALL MODES | |
| Sound quality is bad in all modes. (Volume is too low.) (Built-in type amplifier) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Speaker circuit | SPEAKER CIRCUIT | |
| 3. Proceed to "Sound Quality is Bad in All Modes" | SOUND QUALITY IS BAD IN ALL MODES | |
| Noise occurs. (Separate type amplifier) | 1. Proceed to "Noise Occurs" | NOISE OCCURS |
| 2. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |
| 3. Radio receiver | RADIO RECEIVER | |
| Noise occurs. (Built-in type amplifier) | 1. Proceed to "Noise Occurs" | NOISE OCCURS |
| 2. Radio receiver | RADIO RECEIVER | |
| Radio broadcast cannot be received. (Bad reception) | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | RADIO BROADCAST CANNOT BE RECEIVED OR POOR RECEPTION |
| CD cannot be inserted / played or CD is ejected right after insertion. | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion" | CD CANNOT BE INSERTED / PLAYED OR CD IS EJECTED RIGHT AFTER INSERTION | |
| CD cannot be ejected. | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Proceed to "CD cannot be Ejected" | CD CANNOT BE EJECTED | |
| Sound quality is bad only when playing CD. (Volume is too low.) | Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)" | SOUND QUALITY IS BAD ONLY WHEN CD IS PLAYED (VOLUME IS TOO LOW) |
| CD sound skips. | Proceed to "CD Sound Skips" | CD SOUND SKIPS |