Pioneer CDX-P2050VC Service Manual page 51

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- VOICE UNIT Test Mode
Step 1: Turning on the test mode
1 Connect Pin 1 on the microcomputer to the ground, supply power, then press the reset switch.
2 At this time, the automatic self-check is implemented by the voice recognition LSI (AK2316).
When normal: The "Test mode" guidance will be output.
If any trouble is present: The following frequency of "pee" sounds will be repeated depending on type of the
given error. When this sound is ended, you can repeat the "pee" sounds all over again by pressing any key.
If the self-check detected any error, you can't proceed to further steps in the test mode. Return to the self-
check 1 above.
<Frequency of "pee" sounds and the corresponding error content>
3 times: Error A is detected.
4 times: Error B is detected.
5 times: Errors A and B are detected.
6 times: Error D is detected.
7 times: Errors A and D are detected.
8 times: Errors B and D are detected.
9 times: Errors A, B and D are detected.
Where,
A: Flash memory (static data area) check-sum error.
B: Communication error between DSP and RISC.
D: External SRAM write/read error.
* For details of the voice recognition specification, refer to the specification for the voice recognition LSI
TE
L 13942296513
(AK2316).
Step 2: Generating output of the built-in guidance word by word using the "+ key" or "- key".
1 Press the "+ key" or "- key".
2 This will output one word of the guidance. For the guidance list, refer to the "List of Guidance by
Destination" (see page 52).
* Repeating the above 1 operation allows you to sequentially output the total guidance sentence.
Step 3: Check the IP-BUS for normal connection.
(The guidance is available only when M/U is connected. If not connected, the guidance is not output. Even if
M/U is not connected, however, you can proceed to Step 4 of the test.)
1 Depress the CALL key for less than 2 seconds.
2 The following guidance will be output notifying you whether or not the IP-BUS connection is appropriate:
When appropriate: "IP BUS is OK".
When inappropriate: "IP BUS is No Good".
Step 4: Check whether registration with your voice is available.
1 Press the CALL key for 2 seconds minimum.
2 The guidance "Say name to be registered ....Pii" will be output.
3 Speak! (Speak any words to the microphone for 2.5 seconds maximum.)
4 When your voice is registered: What you spoke will be played back.
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When failed to register: The guidance "Buu" will be output. (Repeat the above step 1 through 4 until 4
words are registered.)
5 As your 4 words are registered, the guidance "Name is complete" will be output indicating the registration
.
operation is finished.
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