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Best help everywhere i got from here. My audio medicinman was happy to get this manual from me. So he could repair my pioneer perfectly. Thanks
R O
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It was very usefull, it is clear the quality is super, the price I paid is very afordable.
Generally speaking Iam very happy with this company.
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The manual was exactly what I needed, Good quality scans too. superb.
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I am so happy found this site as it consists of so many Manuls and easy to aquire. This onei s exactly what I wanted and much more as it has info on not only how to use the tuner but how to repair it as well. I will come here 1st before purchasing else where! Thanks owner-manual.com!
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Top class product, I printed it out on A3 paper and it is clear and very easy to follow.
Cheaper than buying a new radio!
EN 24
5.3.4
5.
DVD728-731 /0X1
Service Hints, Trouble Shooting and Fault Finding
No Sound
B When read disc, Laser ON OK? Signal LDO1 and LDO2  is normal? Y Y Voltage of TP22 &TP24 OK? N Check the peripheral circuit of two transistor (item 7620 & 7621) Check the peripheral circuit of MT1366 Check the peripheral circuit of two transistor (item 7620 & 7621)
N
N
Load a disc?
N
Laser off Y
Check the circuit to connect LOADER OPU maybe damaged
Y
Focus On ok?
N
Any signal on pins A B C D E F of MT1366 Y Signal FEO (pin18 of MT1336) correct?
N
Check the circuit between Loader and MT1336
N
Check the peripheral circuit of MT1336
Y
Y Check the circuit from Pin18 of MT1336 to Pin205 of MT1379
Disc ID correct?
N
Signal of Pin 19 (RFL) of MT1336 normal? Y Check the circuit from Pin19 of MT1336 to Pin206 of MT1379
N
Check the peripheral circuit of MT1336 and itself.
Y
Spindle on OK?
N
DMSO (pin18 of MT1379) normal? Y Signal SP+  &  SPcorrect?
N
Check MT1379 and its peripheral circuit.
N
Check BA5945 (motor driver) and its peripheral circuit
C
Y Check the connection between spindle driver and BA5945
CL 36532024_008.eps 210303
Figure 5-4 No Sound
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