Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Radio/Audio System Schematics | ||||
1 | Did you review the Radio/Audio System Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 |
Do all of the speakers operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are both amplified speakers inoperative? | -- | Go to Step 8 | Go to Step 4 |
4 |
Does the voltage measure greater than the specified value? | 0.020 V | Go to Step 6 | Go to Step 5 |
5 | Test the appropriate speaker input circuits of the amplifier for a short, high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 10 |
6 | Test the appropriate speaker output circuits of the amplifier for a short, high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 7 |
7 |
Does the voltage measure greater than the specified value? | 0.020 V | Go to Step 12 | Go to Step 11 |
8 |
Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 9 |
9 | Test the ground circuit of the amplifier for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 11 |
10 | Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 13 |
11 | Inspect for poor connections at the harness connector of the amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 14 |
12 | Inspect for poor connections at the harness connector of the appropriate speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 16 | Go to Step 15 |
13 | Replace the Radio. Refer to Radio Replacement . Did you complete the replacement? | -- | Go to Step 16 | -- |
14 | Replace the amplifier. Refer to Radio Speaker Amplifier Replacement . Did you complete the replacement? | -- | Go to Step 16 | -- |
15 | Replace the suspect speaker. Did you complete the replacement? | -- | Go to Step 16 | -- |
16 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
