Fault flow chart 2.
Fault symptom
- TV channels only
- Noise in picture
- Noise in sound
Possible causes
- Poor channel tuning
- Defect RF Link Amplifier
- Poor connection from antenna
- Main Chassis defect
- Incorrect Tuner/If adjustment
Noise on single TV
channel
Check and adjust
channel tuning
- - - - - - - -
Pictures without noise
- - - - - - - -
Channel tuning
Replace Main chassis
(Module 999)
Noise on all TV
channels
Connect antenna cable
directly to the tuner
input
- - - - - - - -
Picture without noise
- - - - - - - -
RF Link amplifier
Replace RF Link
amplifier
- - - - - - - -
Defect RF Link amplifier
Check antenna
connection
- - - - - - - -
Cable and connector
OK
- - - - - - - -
Cable & connector
Check adjustment
Tuner Takeover, IF adjust
& FM sound adjust
- - - - - - - -
Values set to values on
label
- - - - - - - -
Tuner & IF adjustment
Reestablish antenna
connection &
reestablish RF Link
amplifier - tuner
connection
Adjust Tuner Takeover,
IF adjust & FM sound
adjust
- - - - - - - -
Picture without noise
Replace Main Chassis
(Module 999)
3
2
1
4
)&
4UNER
2&,INK
AMPLIFIER
!DJUSTMENT
4UNING
Action
- - - - - - - -
Confirm
- - - - - - - -
Checked
2
3
4
No
Yes
Содержание BeoVision 7 MK II
Страница 8: ...1...
Страница 17: ...Fault flow chart 2 FP41 FP43 FP42 FP44 PCB4 PCB1 PCB8 PCB5...
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Страница 70: ...5 16 Replace 999 Module Main chassis Note transfer 6IC6 Replace using IC pliers part no 3629145 IC SOCKET 6IC6...
Страница 75: ...Replace 990 Module DVB S 5 21 3x TX20 11 Remove screws and pull out DVB S...
Страница 81: ...5 27 Replace PCB59 Camcorder 2x TX10 59P50 5 5 BeoVision 7 32 in service position Remove plug Remove screws...
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Страница 106: ...Bang Olufsen DK 7600 Struer Denmark Phone 45 96 84 11 22 Fax 45 97 85 39 11 3538047 06 06...