Panasonic SC-HC4EP Service Manual ▷ View online
13
6 Operating Instructions
6.1.
Disc and MP3 Information
14
7 Self diagnosis and special mode setting
This unit is equipped with features of self-diagnostic & special mode setting for checking the functions & reliability.
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:
Below is the summary for the various modes for checking:
Player buttons
Remote control unit buttons
Application
Note
[4], [7]
To Enter into Doctor Mode for vari-
ous checking
ous checking
(Refer to the section “7.2.1 Service
Mode Table 1.)
Mode Table 1.)
Player buttons
Remote control unit buttons
Mode Name
Note
Note : Applicable in Doctor Mode
[1]
FL Display Test
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[6]
CD and Tape Eject test
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[7]
VOLUME setting (50dB)
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[8]
VOLUME setting (29dB)
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[9]
VOLUME setting (0dB)
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[
], [1], [2]
CD Traverse Unit Test Mode
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[
], [1], [3]
CD Combination Test Mode
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[SLEEP]
Cold Start
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[2]
USB Test Mode
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
[
], [2], [1]
Mecha sliding Panel Reliability
(Refer to the section “7.2.2 service
mode Table 2 for more informa-
tion.)
mode Table 2 for more informa-
tion.)
15
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
Self -Diagnostic Mode To enter into self diagnostic
checking for main unit.
1. Select [
] for CD mode
(Ensure no CD inserted).
2. Press and hold [
]button
for 2 seconds follow by
[
[
].
To exit Doctor Mode, press
button
on main unit or remote control.
Doctor Mode
To enter into Doctor Mode
for checking of various
items and displaying
EEPROM and firmware ver-
sion.
for checking of various
items and displaying
EEPROM and firmware ver-
sion.
Note: The micro-processor
version as shown is an
example. It will be revise
when there is an updates.
version as shown is an
example. It will be revise
when there is an updates.
FL Display sequence Dis-
play 1
play 1
→ 2
(Display 1)
Checksum : (Condition 1)
(a) If there is NO EEPROM header string
OR
(b) If there is no EEPROM ( no data is
received by micro-processor) [NO] is dis-
played.
OR
(b) If there is no EEPROM ( no data is
received by micro-processor) [NO] is dis-
played.
Checksum : (Condition 2)
If the version of the EEPROM does not
match or not working properly [NG] is dis-
play.
match or not working properly [NG] is dis-
play.
Checksum : (Condition 3)
If the EEPROM version matches, checksum
[YYYY] is displayed.
[YYYY] is displayed.
(Display 2)
The Checksum of EEPROM and firmware
version will be display for 2 sec.
version will be display for 2 sec.
In CD mode:
1. Press [
] button on main
unit follow by [4] and [7] on
remote control.
remote control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
16
7.2.2.
Service Mode Table 2
Item
FL Display
Key Operation
Mode Name
Description
Front Key
FL Display Test
To check the FL segments
display (All segments will
light up)
display (All segments will
light up)
In Doctor Mode:
1. Press [1] button on remote con-
trol.
To cancel, press [0] button on remote
control.
control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
Volume Setting
To check for volume setting
during this mode, Bass &
treble is set to 0dB & EQ is
switch off.
during this mode, Bass &
treble is set to 0dB & EQ is
switch off.
In Doctor Mode:
1. Press [7] button on remote control.
1. Press [7] button on remote control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
In Doctor Mode:
2. Press [8] button on remote control.
In Doctor Mode:
2. Press [8] button on remote control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
In Doctor Mode:
3. Press [9] button on remote control.
In Doctor Mode:
3. Press [9] button on remote control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
CD Traverse Unit Test
Mode
Mode
To check for the traverse unit
operation. In this mode, the
first & last track is access &
read. (TOC). It fails when
TOC is not completed by IOS
or the traverse is out of
focus.
operation. In this mode, the
first & last track is access &
read. (TOC). It fails when
TOC is not completed by IOS
or the traverse is out of
focus.
In Doctor Mode:
1. Press [
], [1], [2] button on
remote control.
To cancel, press [0] button on remote
control.
control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
CD Combination Test
Mode
Mode
A combination of CD loading
& traverse unit test.
& traverse unit test.
In Doctor Mode:
1. Press [
], [1], [3] button on
remote control.
To cancel, press [0] button on remote
control.
control.
To exit Doctor Mode, press
but-
ton on main unit or remote control.
Cold Start
To activate cold start upon
next AC power up.
next AC power up.
In Doctor Mode:
1. Press [SLEEP] button on remote
control.
To exit Doctor Mode, press
button
on main unit or remote control.
USB Test Mode
To Inspect USB Testing.
The display will appear after 3s,
In Doctor Mode:
1. Select to USB mode.
2. Press [2] button on remote con-
2. Press [2] button on remote con-
trol.
To exit Doctor Mode, press
button
on main unit or remote control.
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