Connect the connectors correctly.
Repair the DIGITAL PCB.
NO
YES
4.3. Analog audio
No audio output.
Is a voltage of ± 7V supplied to SIDE
CNT PCB CN64C 4-7pin?
Is there an audio signal in INPUT PCB
CN461?
Is electron volume serial data be-
ing sent to SIDE CNT PCB CN23C
15,16,17pin?
Once more, connect the connectors correctly.
If the malfunctioning channel and function can be identified, check the correspond-
ing signal path.
Repair the ± 7V power supply.
Repair the power amplifier.
Is the connector correctly connected
with DIGITAL PCB?
YES
NO
YES
NO
YES
NO
112
Summary of Contents for SR7009/FN
Page 8: ...Personal notes 8 ...
Page 27: ...Personal notes 27 ...
Page 73: ...Personal notes Personal notes 73 ...
Page 201: ...AK5358BET DIGITAL IC306 AK5358BET Pin Function 201 ...
Page 206: ...NJW1194A INPUT IC484 IC489 BLOCK DIAGRAM 206 ...
Page 207: ...2 FL DISPLAY FLD GP1261AI FRONT FL602 PIN CONNECTION PATTERN DETAIL 207 ...