Blaupunkt TV model W23/173I-GB-FHBKUP-DE no sound
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New member Username: LineofstarsPost Number: 1 Registered: Nov-14 | Hi everyone.Im new here and obviously need your hand of help. Suddenly the TV start making a strange sound to the speakers,than there the sound has gone.The speakers I have checked them connecting to other device.The audio jack output also does not work because I have tested with an earphone. The exact tv model and info are: Blaupunkt TV,model # W23/173I-GB-FHBKUP-DE Ref B23C173TCFHD Product code BW23R173BFBKPE404 Serial Number BW23R173BFBKPE404-107426 00808 Motherboard serial t.msd309.28b Photo link to see the motherboard: https://plus.google.com/photos/102793503591974069148/albums/6079107146329663217/ 6079107625735817218?pid=6079107625735817218&oid=102793503591974069148 Wich is your step by step procedure to repair it? What components make the audio circuit exactly? Thanks in advance. |
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New member Username: LineofstarsPost Number: 2 Registered: Nov-14 | Hi again to all of you. First ,with your help,I want to see IF the audio IC YD 1517p is good. So,I will attach the datasheet of the IC . 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?
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