DOWNLOAD Sharp DV-L80 (serv.man3) Service Manual ↓ Size: 418.28 KB | Pages: 21 in PDF or view online for FREE

Model
DV-L80 (serv.man3)
Pages
21
Size
418.28 KB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Section 1-8
File
dv-l80-sm3.pdf
Date

Sharp DV-L80 (serv.man3) Service Manual ▷ View online

DV-L80S/W
13
BATTERY END VOLTAGE ADJUSTMENT
1. Initial setting
(1) Power supply
Input 6.15V
±
0.05V to the DVD battery.
Note1)  Set the voltage on the DC input jack PWB of the main unit to the value specified above in the condition of
DVD start-up (LCD lit).
Note 2) Check the voltage with a calibrated measuring instrument. In case that drift is worried, check the voltage
periodically.
2. Battery end voltage adjusting procedure and method
(1) Select the battery detection error compensation adjustment mode.
1
 Turn on the main power switch on while pressing the “UP” “DOWN” keys of the main unit at the same time.
2
 Press the mode selection key.
3
 Press the sound volume down button twice to enter the battery adjusting screen.
4
 With button changing button, make the cross key to the cursor mode. (With 70 type remote controller, the cursor
key can be used for operation as it is.)
(2) Adjust with the right and left key so that the “BAT” value displayed on the LCD becomes “0”.
No.
Item
Checked place
Checking method
Standard, condition
Remarks
1
S image Y output
S terminal
1. Play the test disc TDV - 581A.
2. Check the Y output with an
1Vp-p 
±
 0.15Vp-p
S terminal Y output
oscilloscope.
Measure at 75
termination.
2
S image C output
S terminal
1. Play the test disc TDV - 581A.
2. Check the C output with an
0.286Vp-p 
±
 0.15Vp-p
S terminal C output
oscilloscope.
Measure at 75
termination.
3
Error rate check
Display
1. Press the STOP key and the
V-CD:TDV-581A
When playing back.
PLAY key of the main unit key 20/4
at the same time and check
the error rate displayed on the
display.
DVD:TV-501
38/76
4
Flash memory
Display
1. Press the return key and the
Model name of the
When NO DISC.
check
VOL-UP key of the main unit
software
key at the same time.
Region code
Transmit the numeric number
Software Ver.
key of R/C (1), next transmit
play to check the model name
and the region code, and
transmit play again to check
the software Ver.
5
Sound level check
Audio output
Play the title 49, chapter 1AC - 320 1.35Vrms 
±
 0.3Vrms
L/R
mode of the test disc TV - 501 to
check the sound output level.
6
Digital sound
Digital sound
Connect the digital surround
The sound from the digital
output check
output
processor to the digital sound
surround processor must
output and play the VCD to check be played properly.
the sound output from the digital
surround processor.
7
Distorted disc
Played image
Play the test disc TDV - 533 to
It must be normally played.
playback check
check the played image on the
* No EJECT, rickety play
monitor screen.
  or staying in LOAD
  condition are allowed.
DV-L80S/W
14
No.
Item
Checked place
Checking method
Standard, condition
Remarks
8
Battery display
Main unit LCD
1. Supply 8V to the battery
check
terminal. Get the DVD start-up
screen.
2. Change the battery voltage to
(7) V.                       
             →
Check the battery half
display.
3. Change the battery voltage to
(6.5) V.                       
          →
Check the battery alarm
display.
4. Change the battery voltage to
(5.9) V.                       
          →
Check the power is
turned off.
9
Charging action
Main unit LED
1. Supply power from an
check
AC adapter.
2. Connect (15)
 supplied a 6.5V
DC to the battery terminal. 
 →
Check the LED for
charging lights on.
10
RTR disc play
Display
1. Press the STOP key and the
RTR recorded disc
check
PLAY key of the main unit key 50/100
at the same time and check
the error rate displayed on the
display.
DV-L80S/W
15
7. TEST  MODE
 Test Mode
A power source is put, and a playback key and a stop key are pushed after the "NO DISC" display at the same
time. (It keeps pushing it for about three seconds.)
ROM Renewal Mode
A power source is put with pushing a playback key and a halt key at the same time.
(It keeps pushing it for about three seconds.)
[TEST MODE]
The preparation date display of the program
10000000  ********
                                                   (Last updata)
Model number display
10000001  00007604
                                               (Model number)
The version display of the program
10000002  ********
                                                 (Program ver.)
Reagion number display
10000003  00000008
                          (Region code:Binary display)
Color bar display
20000001  00000000 (FIP)
Micro-code number display
10000004  ********
                                              (Microcode ver.)
The preparation date display of the servo program
10000005  ********
                                                     (Servo ver.)
Servo DSP microcode version display
10000006  ********
It is returned to the test mode initial image plane.
<The "2" key of the remote controller is pushed.>
<The "3" key of the remote controller is pushed.>
<The "1" key of the remote controller is pushed.>
Test mode initial image plane
F0000000  00000000
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
There is no copy guard signal.
What is the symptom at the time of dubbing to VTR?
Color bar display
20000002  00000000 (FIP)
The "PALY" key of the remote controller is pushed.
The "PALY" key of the remote controller is pushed.
AGC only
What is the symptom at the time of dubbing to VTR?
Color bar display
20000003  00000000 (FIP)
The "PALY" key of the remote controller is pushed.
AGC+Color stripe1
What is the symptom at the time of dubbing to VTR?
AGC+Color stripe2
What is the symptom at the time of dubbing to VTR?
Color bar display
20000003  00000000 (FIP)
To (1)
Micro-code is the thing of the process 
program of the system integrated circuit.
DV-L80S/W
16
<Disk is put, and the "2" key of the remote controller is pushed.>
*It is usually returned in power source off for the state.
<The "1" key of the remote controller is pushed.>
DVD laser lights, the spindle motor 
rotates and the pickup moves to the 
outer periphery.
30000100   00000000
<The "1" key of the remote controller is pushed.>
Note:Not to face the light of the laser squarely, 
         caution!
The "PLAY" key input.
The "PLAY" key input.
From (1)
To (2)
STEP TEST
DD000200  00000000
STEP TEST
DD000201  00000000
STEP TEST
DD00E210  EEEEEEEE
When a disk is not in.
Track on
Focus on
The "PLAY" key input.
STEP TEST
DD000202  00000000
Focus balance adjustment (1)
The "PLAY" key input.
STEP TEST
DD000203  00000000
PF, Focus, track gain adjustment
The "PLAY" key input.
(******** is the sector ID.)
(******** is the sector ID.)
(******** is sub-Q.)
The "PLAY" key input.
Follow-up play condition
Follow-up play condition
Follow-up play condition
STEP TEST
DD000204  00000000
DVD: focus balance adjustment (2)
CD: TOC reading
Control data read
Focus balance of the layer 1, 
follow-up play condition after focus gain adjustment 
(In case of DVD other 
than DVD-RW)
(In case of DVD-RW)
(In case of CD)
STEP TEST
DD000210  00000000
STEP TEST END
CD000210  ********
STEP TEST
DD000211  00000000
STEP TEST END
DD000212  ********
STEP TEST END
D9000212  ********
DVD laser off, CD laser on, spin kick, 
sled outer periphery feed
ErrDisplay0  ErrDisplay1
30000100   00000000
<The "1" key of the remote controller is pushed.>
<The "1" key of the remote controller is pushed.>
Laser off, spin kick, sled outer periphery 
feed
ErrDisplay0  ErrDisplay1
30000100   00000000
STEP TEST
D9000211  00000000
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