SYNCHRO EXCITE Class & Trend: Service & maintenance manual - rev. 2.0
Page 6.17
6.5. NO AUDIO SOUND
This error can be due to an incorrect machine configuration, or to problems with the audio circuit.
Is the TV standard correctly
conf igured?
Correctly conf igure the
"TV Standard"
parameter
NO
YES
NO AUDIO SOUND
1
Replace the headphone jack.
Does it work?
Defectiv e headphone
jack
YES
NO
Replace headphone
connection cable. Does it
work?
Defective headphone
cable
YES
Replace the CPU board
NO
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below:
(1) Carry out the configuration procedure as detailed at paragraph 9.5.6. “TV Standard”.
If you replace Display board/Brake board, check that its SW version is updated, otherwise
install the last version.
The TV and RADIO channels is located in the Digital TV in the CPU Board and must
necessarily be present. This means that when even one of the two boards will be replaced,
should be re-stored channels through search or transferring from another machine via TGS
key or cable transfer.
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