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Blaupunkt TV model W23/173I-GB-FHBKUP-DE no sound

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lineofstars:
@watteau
I dont have a multmeter that can check the capacitors.
But on the board,they look good.
First ,with your help,I want to see IF the IC  YD 1517p is good.
So,I already attached the datasheet of the IC but I will make a screen shot and I will attach here the IC diagram.
Turning the TV on, I have checked the voltage using the multimeter,the values are:
Vcc=12 to pin#7
1/2Vcc=0 to pin#3
Rest of the pins voltage=0.

Turning the TV off, In diode mode by multimeter with the black probe to GRD and red probe to the pin
#1 value is 796
#2 it beeps
#3  value is 796
#4 it beeps  (why?)
#5  it beeps
#6 value is 792
#7 value is 1755
#8 starts from 1800 and goes to OverLimit
#9 value is 797
#10 to #18(the last pin that the IC has) it beeps cause is the GRD.

Turning the TV off, I have checked the resistance  Ω(ohm mode) by multimeter with the black probe to GRD and red probe to the pin
#1 value is OL(over limit)
#2 value is 0
#3  value is OL
#4 value is 10  Ω ohms
#5  value 0
#6 value is OL
#7 value is OL
#8 value is OL
#9 value is OL
#10 to #18 value is 0
Based on this measurements please give me a hint about what is your idea if the IC is good,or guide me to do other measurements,or technics using the multimeter,beacause I only have this kind of measurement  tool.
Are the above values correct?

lineofstars:
The link of the IC's datasheet is:
https://drive.google.com/file/d/0B72PSl5kuidmSTBQQ3g0eTZkVDQ/view?pli=1

So you can see the exact values of the manufacturer.

astracat:
try disconnecting speakers and see if volts appear on 4 and 3 if not suggest replacing ic also does it get hot to touch output pins are connected with a capacitor in series with speakers may be one leaking also cap on pin 3
suspect
regards
astracat

lineofstars:
Thanks for replay astracat.
All the measure were done with the TV on, without the speakers connected to the white 4pins slot.
Accordingly to the BLOCK DIAGRAM attached above, the  pin#3 is 1/2Vcc.
So the Vcc in the datasheet(see the google drive link),shows 14.4V,therefore the pin#3 of the audio IC in question,suppose to have 7.2V,but shows 0V.
Question for ASTRACAT,pin#1(IN1, pin #4(OUT1) pin#6(OUT2),pin#9(IN2) ,wich is the voltage expected?

astracat:
hi
both output pins should be virtualy same voltage also change cap on pin 3 if no better suggest ic u/s but first isolate mute pin to make sure micro not turning it off it could still be memmory ic problem ,with mute isolated probe inputs should give a buzz from relevant speaker .note ic still possible suspect if buzz  there then mem ic

regards
astracat

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