Philips HTS3548W/55 Service Manual page 9

REPAIR INSTRUCTIONS (part two)-Main Unit
D
Ipod inpu t
No Sound
INT
Check DOCK TO
Change this Cable
HTS3540 CableINT
or NO
OK
INT
Check ipod input pc b
Change this TWO
JK 101CN 101 INT OR NO
No
No
Check CN101 5P IN Check CN101 JK 101
Voltage Correct is 5.0V
And Its Conj oint parts
OK
Check DOCK
F
Wireless
No Output
Check JK 401
No
See B
Pin1approx +5V
OK or No
OK
Check JK 401IC505 OK
See C
And Its conjoint parts
2 - 3
MA IN UNIT REPAIR CHART 2/ 3
E
AUX/TV IN
No Output
Check JK 302 INT
Change this JK
INT or No
OK
CheckIC304IC305 Pin7
No
Check ZD301ZD302
approx -5.6V Pin16 approx +5.6V
Yes or No
Yes
No
CheckIC306 Pin1 Pin3 6 13 Check FB307 FB308
Voltage Correct is 5.0V
FB309 Q 904
OK
I
Check IC306
And Its Conj oint parts
OK
COAXIAL In
No S ound
See C
Check JK 702 Pin5
INT OR NO
OK
Check IC201 Pin6 pin 23
approx +5.0V
Yes or No
OK
Check IC201 IC208 A nd
Its Conj oint Parts
G
DVD Audio
Check IC 801
No S ound
And It s co nj oi nt parts
Check CN802 CN803
No
Check Open/Close
to DVD Lo ader Cable loos e
Wo rking or No t
or Ba d IN T
OK
Check CN801 to
YES
Re-Insert and fix
DVD loader Cable Loos e
or Ba d IN T
OK
No
De termine Picture Ou tput
Check IC 208 And
Their Conjoint Pa rts
Ye s or No
OK
Check Q801 Q802 Q803
Q804 A nd Their Conjoint Pa rts
INT
REPA IR ok
No
Check And Repair
FB 202 FB 203
2 - 3
H
Check JK 302
IN T or No
OK
No
Check IC 304IC 305 Pin7
approx -5.6V Pin16 approx +5.6V
Ye s or No
Yes
Ye s
Check IC 306 Pin1 Pin3 6 13
the cabl e
Vo ltage Correct is 5.0V
OK
Check IC 306
And It s Conj oi nt parts
OK
See C
INT
Change this JK
No
Check ZD301ZD302
No
Check FB 307 FB 308
FB 309 Q 904