Panasonic SA-AK770GCP, Service Manual

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7 Self diagnosis and special mode setting
This unit is equipped with features of self-diagnostic & special mode setting for checking the functions & reliability.
Special Note : Checking of the reliability (ageing) & changer operation must be carry out to ensure good working condition
in unit.
7.1. Service Mode Summary Table
The service modes can be activated by pressing various button combination on the main unit and remote control unit.Below is the
summary for the various modes for checking:
Player buttons Remote control unit buttons Application Note
[STOP] [4], [7] Entering into doctor mode (Refer to section .7.2.1. service mode
Table 1 for more information.)
[STOP] [ ] Entering into service mode (Refer to section .7.2.1. service mode
Table 1 for more information.)
Mode Remote control unit buttons Application Note
In Doctor Mode [1] FL all segment & LED inspection (Refer to section .7.2.2. service mode
Table 2 for more information.)
[MUSIC.P] Tuner Check (Refer to section .7.2.2. service mode
Table 2 for more information.)
[7] Volume 50 setting check (Refer to section .7.2.2. service mode
Table 2 for more information.)
[8] Volume 35 setting check (Refer to section .7.2.2. service mode
Table 2 for more information.)
[9] Volume 0 setting check (Refer to section .7.2.2. service mode
Table 2 for more information.)
[2] Micro-P Version Display (Refer to section .7.2.2. service mode
Table 2 for more information.)
[4] CD
→
USB Recording & Playing inspection (Refer to section .7.2.2. service mode
Table 2 for more information.)
[5] CD-MP3 Reading & Playing inspection (Refer to section .7.2.2. service mode
Table 2 for more information.)
[ ], [1], [1] CD Loading Test Mode (Refer to section .7.2.2. service mode
Table 2 for more information.)
[ ], [1], [2] CD Traverse Unit Test Mode (Refer to section .7.2.2. service mode
Table 2 for more information.)
[ ], [1], [3] CD Combination Test Mode (Refer to section .7.2.2. service mode
Table 2 for more information.)
Mode Remote control unit buttons Application Note
In Service Mode [1] self diagnostic history (Refer to section .7.2.3. service mode
Table 3 for more information.)
[2] Micro-P FW (Refer to section .7.2.3. service mode
Table 3 for more information.)
[3] Cold Start (Reset) (Refer to section .7.2.3. service mode
Table 3 for more information.)
7.2. Service Mode Table
Below is the various special modes for checking:-
7.2.1. Service Mode Table 1
Item FL Display Key Operation
Mode Name Description Front Key
Doctor Mode To enter into Doctor
Mode. In any mode:
1.
Press [ ] button on main unit
follow by [4] and [7] on remote control.
To exit Doctor Mode, press [ ] button on
main unit or remote control.
Service Mode To enter into Service
Mode. 1. Select [CD] for DISC mode (Ensure no disc
is inserted).
2. Press and hold [ ]button on
main unit for 2 seconds follow by
[
] on remote control.
To exit, press [ ] button on main unit or
remote control.
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SA-AK770PL / SA-AK770GCP