Sharp DX-AT50H (serv.man21) Service Manual ▷ View online
– 13 –
DX-AT50H
[18] DVD MECHA
[17] MAIN CBA
ASSEMBLY
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
ASSEMBLY
INSULATION
SHEET
SHEET
DX-AT50H
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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.
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.
• 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.
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.
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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.
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.
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
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1. TEST1 - VFD
2. TEST2 - REPEAT PLAY
3. TEST3 - EEPROM MEMORY CLEAR
4. TEST4 - MEASUREMENT MODE
5. TEST5 - TEST DISC
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
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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