DOWNLOAD Sharp DX-AT50H (serv.man21) Service Manual ↓ Size: 3.04 MB | Pages: 76 in PDF or view online for FREE

Model
DX-AT50H (serv.man21)
Pages
76
Size
3.04 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / complete
File
dx-at50h-sm21.pdf
Date

Sharp DX-AT50H (serv.man21) Service Manual ▷ View online

– 13 –
DX-AT50H
[18]  DVD MECHA 
[17]  MAIN CBA 
 ASSEMBLY
(S-9)
(S-9)
(S-9)
Fig. C6
CN303
CN4402
CN4403
CN4401
CN101
Fig. C7
Motor Cable
Black
Red
Desolder
Bottom of MAIN CBA  ASSEMBLY
(S-10)
(S-10)
Fig. C8
[19]  POWER CBA  
ASSEMBLY
INSULATION 
SHEET
DX-AT50H
– 14 –
ADDITIONAL DESCRIPTION
Disassembling the top cabinet
1.  Remove the 5 screws on the backside.
2.  Raise the rear end by approx. 10 mm,
3.  Slide it backward by approx. 5 mm and raise it to remove.
Disassembling the bottom cabinet
• Notice that the bottom cabinet can be removed only when the top cabinet is removed.
1. Remove the 2 screws on the backside.
2. Remove the forward rubber cushions (2 cushions),
3. Remove the 2 screws underneath the removed 2 cushions.
4. Hold up the rear end by approx. 5 mm and slide it backward to remove.
– 15 –
DX-AT50H
TEST MODE
Test Mode Initial Display (Fig.T-1)
Displaying F/E Ver.
Displaying B/E Ver.
Displaying AV Decoder Ver.
Displaying DSP Ver.
Displaying LCD "B/E Ver."
< Press 1 button on the remote control unit. >
< Press 1 button on the remote control unit. >
< Press 2 button on the remote control unit. >
< Press 3 button on the remote control unit. >
< Press RETURN button on 
the remote control unit. >
< Press RETURN button on 
the remote control unit. >
Returning to Test Mode Initial Display
Returning to Test Mode Initial Display
All LCD ON/OFF
Menu Display (Fig. T-2)
 Cearing FLASH MEMORY (Fig. T-3)
All LCD ON
All LCD OFF
Displaying LCD "TEST1"
 Displaying LCD "TEST3"
Test Mode
A power source is put, and [1], [2], [3], [4], and [ON SCREEN] buttons on the remote control unit
are pushed in that order while the tray is opening or after the “NO DISC” display at the same
time.
ROM Renewal Mode
A power source is put, and [9], [8], [7], [6], and [DIRECT SKIP] buttons on the remote control unit
are pushed in that order while the tray is opening or after the “NO DISC” display at the same
time.
[TEST MODE]
Test Mode Flow Chart
DX-AT50H
– 16 –
1.    TEST1 - VFD
2.    TEST2 - REPEAT PLAY
3.    TEST3 - EEPROM MEMORY CLEAR
4.    TEST4 - MEASUREMENT MODE
5.    TEST5 - TEST DISC
AVD
.
E56       D FE
.
BE
.
AVD
.
E56       D FE
.
BE
.
AVD
.
E56       D FE
.
BE
.
AUD_VER:
AUD_IDE:
REGION
DEN_CID:
FEI_REV:
VIE_REV:
EXIT:
POWER
RETURN:
EXIT:
RETURN
POWER
TEST1 - VFD
1.    ON
2.    OFF
  VFD STATUS        [ --- ]
RETURN:
EXIT:
RETURN
POWER
TEST3 - FLASH MEMORY CLEAR
FLASH MEMORY CLEAR : OK
Fig. T-1: Test Mode Initial Display
Fig. T-2: All LCD ON/OFF Menu Display 
Fig. T-3: Clearing FLASH MEMORY Display
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Display

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