Pioneer C-AX10, Service Manual

Page: 84 / 120

84
C-AX10
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 Test Mode
(1) How to enter the test mode
Turn the OUTPUT MODE switch to "OFF" in the POWER OFF
state, and turn the POWER ON. Enter the test mode that continues
pressing "DIGITAL NR", "TONE" and "REC SELECTOR" keys
together for two seconds after passing afterwards more than 15
seconds (In the meantime, because do not accept key operation).
Indicate it with "TEST MODE" in FL.
Set all states to the factory setting state except destination code.
SACD , HDCD lights during test mode.
(2) FL All lights / All lights out
Enter the FL and LED light confirmation mode when pressing the
"NETWORK SETUP + DIRECT" keys during test mode.
Change the FL indication and LED indication as follows whenever
pressing the "N DIRECT" keys.
Normal indication
→
FL, LED all light
→
FL, LED all light out
→
Normal indication
→
...
(3) Delay confirmation
FL indicates it with "DELAY CHECK" when pressing the
"NETWORK SETUP + Hi-bit" keys during test mode and it beomes
following setting.
• INPUT selector set to the MULTI-ch mode with the DVD.
• As for the setting of delay, FRONT ch and CENTER ch are 3.0m
(10 feet), SURROUND ch is 1.5m (5 feet), and SURROUND ch
delays 5 msec only.
Note: Please turn a little MASTER VOLUME after this.
(4) Gain switching confirmation in TONE
on/off
Enter the gain switching confirmation mode of analog circuit when
pressing the "NETWORK SETUP + MIDNIGHT" keys during test
mode.
Switch as follows whenever pressing the "N MID
NIGHT" keys.
Gain +6dB (last state)
→
gain 0dB
→
gain +6dB
→
...
(5) Master VOLUME operation confirmation
Enter the operation confirmation mode of master VOLUME when
pressing the "NETWORK SETUP + DIGITAL NR" keys during
test mode.
Switch as follows whenever pressing the "DIGITAL
NR" keys.
Last state
→
-
∞ →
-12dB
→
-
∞ →
...
(6) Communication confirmation with dts
ROM
Enter the communication confirmation mode with dts ROM when
pressing the "NETWORK SETUP + fs 96k/48k" keys during test
mode.
INPUT SELECTOR becomes "DIGITAL 6", then repeat virtual
OPTION: on/off whenever pressing the "N fs" keys.
Indicate it with "DTS ON" at on, and decode of compression audio
is possible.
Perform the decode operation when inputs the dts signal in this state.
If a communication with the dts ROM is performed, outputs it
correctly decoded.
Note: Please turn a little MASTER VOLUME after this.
(7) How to cancel the test mode
Turn the POWER OFF, then finish the above operations and cancel
the test mode.
(8) Microcomputer version confirmation
Turn the OUTPUT MODE switch to "OFF" and turn the POWER
ON. Indicates the version of the microcomputer (system controller
and DSP controller) in the FL indicator that continues pressing
"PARAMETER CHECK", "MIDNIGHT" and "REC SELECTOR"
keys together for two seconds after passing afterwards more than
15 seconds.
Indication example: (System controller) SYS:
∗∗∗
(DSP controller) DSP:
∗∗∗
(9) Key list of the main unit to use
DIGITAL NR + TONE + REC SELECTOR : Enter the test mode
NETWORK SETUP + DIRECT : FL, LED all light / all light out
confirmation mode
NETWORK SETUP + Hi-bit : Delay confirmation mode
NETWORK SETUP + MIDNIGHT : TONE gain switching
confirmation mode
NETWORK SETUP + DIGITAL NR : Master VOLUME
operation confirmation
NETWORK SETUP + fs 96k/48k : dts ROM operation confirmation
PARAMETER CHECK + MI REC SELECTOR :
Microcomputer version confirmation
(MIN) (MIN)