Samsung HT-Z410, Service Manual

Page: 28 / 108

4-6 Samsung Electronics
Troubleshooting
C
Replace the SPK1 and SPK2
connectors.
Check the output.
Check if the outputs
of the pin 48, 49, 51, 52, 54,
55, 58, 59, 61, 62, 67 and 68
UPIC1 PS9829B of the
AMP PCB is
measured.
Check if the
VDD of 3.3V is measured at the
pin of 4, 10, 22, 29.
Replace the UPIC1.
Check if the pin 22 of J7 is
3.3V.
No No
Yes
Yes
Check the PWM
output.
Check if the outputs
of the pin 28, 31, 36 and 39 of
IC1CW, IC1L and IC1Y of the TAS5352
of the AMP PCB are
measured.
Replace the TAS5352.
Check if the GVDD of pin 1 of
J9 is 12V.
Check if the PVDD of pin 8, 9,
10 and 11 of J9 are 34.5V.
No
Yes
Check if GVDD
is measured at the pin 1, 22,
23 and 44. Check if PVDD is measured
at the pin 26, 27, 32, 35, 40
and 41.
Yes
No
Check if the outputs of the
SPK1 and SPK2 of AMP PCB
are measured.

Refer to wave pattern
image of Fig. 4-5.

Refer to wave pattern
image of Fig. 4-4-1
and Fig. 4-4-2.

Refer to wave pattern
image of Fig. 4-4-1
and Fig. 4-4-2.