DOWNLOAD Panasonic SA-VK870GC / SA-VK870GCS / SA-VK870GS Service Manual ↓ Size: 14.81 MB | Pages: 127 in PDF or view online for FREE

Model
SA-VK870GC SA-VK870GCS SA-VK870GS
Pages
127
Size
14.81 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD STEREO SYSTEM
File
sa-vk870gc-sa-vk870gcs-sa-vk870gs.pdf
Date

Panasonic SA-VK870GC / SA-VK870GCS / SA-VK870GS Service Manual ▷ View online

8.2.5. Service Mode Table 5
Timer 1 check
Cancelled automatically
5 seconds later.
DVD laser usage time
(Display 1)
(Display 2)
CD laser usage time
Cancelled automatically 
5 seconds later
Cancelled automatically 
5 seconds later.
Cancelled automatically 
5 seconds later.
Timer 1 reset
Timer 2 check
Timer 2 reset
In STOP (no disc) 
mode, press [STOP] 
button on the main unit, 
and [     ] button on the 
remote control unit.
While displaying Timer 1 
data, press [STOP] button 
on the main unit, and [     ] 
button on the remote 
control unit.
In STOP (no disc) 
mode, press [STOP] 
button on the main unit, 
and [     ] button on the 
remote control unit.
While displaying Timer 2 
data, press [STOP] button 
on the main unit, and [     ] 
button on the remote 
control unit.
Timer 1 check
Laser operation timer is measured 
separately for DVD laser and CD laser.
FL Display sequence:
Display 1    2.
Press [FL Display] button for
next page of FL Display.
Timer 1 reset
Laser operation timer of both DVD 
laser and CD laser is reset all at once.
Timer 2 check
Spindle motor operation timer
Timer 2 reset
Spindle motor operation timer
Time is shown in 5 digits of decimal notation in 
a unit of 1 hour.
"00000" will follow "99999".
Shown to the above is DVD laser usage 
time, and to the below is CD laser usage 
time.
Time is shown in 4 digits of decimal notation 
in a unit of 10 hours.
"0000" will follow "9999". (DVD laser)
Time is shown in 4 digits of decimal notation 
in a unit of 10 hours.
"0000" will follow "9999". (CD laser)
Time is shown in 4 digits of decimal notation 
in a unit of 10 hours.
It will clear to "0000" upon reset.
Time is shown in 5 digits of decimal notation in 
a unit of 1 hour.
It will be cleared to "00000" upon activating 
this.
FL Display
Key Operation
Front Key
Item
Description
Mode Name
29
SA-VK870GC / SA-VK870GCS / SA-VK870GS
8.2.6. Optical Pick-up Self-Diagnosis
The optical pickup self-diagnosis function and tilt adjustment check function have been included in this unit. When repairing, use
the following procedure for effective self-diagnosis and tilt adjustment. Be sure to use the self-diagnosis function before replacing
the optical pickup when “NO DISC” is displayed. As a guideline, you should replace the optical pickup when the value of the laser
drive current is more than the specified value.
Note:
Press the power button to turn on the power, and check the value within three minutes before the unit warms up. (Otherwise,
the result will be incorrect.)
"NO DISC" is displayed, unit 
does not play smoothly, etc.
Check the laser drive current.
Replace the traverse unit.  
(Refer to the section "OPTICAL 
PICKUP REPLACEMENT 
PROCEDURE" in this Guide.)
Initialize the main unit.
Value is more than 
37 (DVD), 41 (CD).
Replace with a new optical pickup if the present 
value is more than 37 (DVD), 41 (CD).
Cause: Damage due to static electricity 
during replacement.
Use the optical pickup self-diagnosis function.
Method: With no disc in the main unit:
• Press the "FUNCTIONS" button on the remote 
control unit while pressing the "STOP" 
button on the main unit. (DVD)
• Press the "3" button on the remote 
control unit while pressing the "STOP" 
button on the main unit. (CD)
[Display content (display1/display2)]
LDD
(DVD)
LDC
(CD)
Factory setting
Present value
Factory setting
Present value
/
/
30
SA-VK870GC / SA-VK870GCS / SA-VK870GS
8.3. Service Mode Table (For CR14)
8.3.1. Service Mode Table 1
In self-diagnostic mode, press [1] 
button on main unit. 
To exit, power off the main unit
Press [EXCHANGE] on main unit
for error code.  
FL Display
Key Operation
Front Key
Item
Description
Mode Name
In DVD/CD mode (ensure no disc is 
inserted):
Press and hold [STOP] button for five 
seconds, followed by [    /FF/       ] 
button on the main unit.
To exit, press [     , AC IN] button on 
main unit or remote control unit. 
To enter into self-diagnostic checking 
for CR14 mechanism.
Self-Diagnostic
Mode
To unlock the mechanism unit for 
service.
In this mode, the disassembly of CR14
can be carry out. (Refer to original 
service manual for CR14)
1. All trays are set to "STOCK" position.
2. Mechanism set to tray 1.
3. Cam gear set to "HOME" position.
Service Mode 1
In self-diagnostic mode, press [2] 
button on main unit. 
To exit, power off the main unit
Press [EXCHANGE] on main unit
for error code.  
To unlock the traverse unit for service.
In this mode, traverse unit can be
disassembled. (Refer to original 
service manual for CR14)
1. Tray 5 set to "Play" position.
2. Mechanism set to tray 5.
3. Cam gear set to "HOME" position.
Service Mode 2
/l
(Refer to section 8.6.1. for information)
31
SA-VK870GC / SA-VK870GCS / SA-VK870GS
8.3.2. Service Mode Table 2
FL Display
Key Operation
Front Key
Item
Description
Mode Name
The counter will
increment by one.
When reach 99999
will change to 00000
In this mode, the trays are loaded & 
unloaded.
In self-diagnostic mode, press [1] 
button on remote control. 
To exit, press [      ] button on the 
main unit or remote control unit.
Reliability
1
(Load cycle Test)
To determine open/close operation of the
mechanism (all trays). 
In self-diagnostic mode, press [2] 
button on remote control. 
To exit, press [      ] button on the 
main unit or remote control unit.
Reliability
2
(Traverse Cycle
Test)
To determine playability operation.
In self-diagnostic mode, press [3] 
button on remote control. 
To exit, press [      ] button on the 
main unit or remote control unit.
Reliability
3
(Combi Cycle
Test)
The combine test for both load &
traverse cycle test.
/l
/l
/l
Display 1
Display 2
The counter will
increment by one.
When reach 99999
will change to 00000
Display 1
Display 2
The counter will
increment by one.
When reach 99999
will change to 00000
Display 1
Display 2
32
SA-VK870GC / SA-VK870GCS / SA-VK870GS
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