Denon S-302 Service Manual page 37
Dvd home entertainment system
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Also See for S-302:
- Owner's manual (63 pages) ,
- Quick setup manual (5 pages) ,
- Code list (3 pages)
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Q Q
DSW-S302
3 7 6 3 1 5 1 5 0
1. 1U-3811 (D.AMP/SMPS UNIT)
(1) AMPLIFER
Check Reset signal.
(IC208 4pin)
"H" level (About 3.3V)
O.K.
Check Clock waveform.
• (IC201 2pin)
• (IC203 15pin)
• (IC204 15pin)
Refer (waveform 1)
O.K.
Check PWM sginal waveform.
• (IC206 4,5,6pin)
• (IC206 14,15,16pin)
• (IC207 2,4,17pin)
Refer (waveform 2)
O.K.
Check Digital amp carrier waveform.
T E
• (IC206 33,30pin)
L
1 3 9 4 2 2 9 6 5 1 3
• (IC206 26,22pin)
• (IC207 29,25pin)
Refer (waveform 3)
O.K.
Check Speaker relay.
• Is (RL201,RL202) switched?
O.K.
Check A/D signal waveform.
• (IC201 24,23,21,19)
Refer (waveform 4-6)
O.K.
Check Input circuit.
• (IC101 1,7)
• (IC102 1,7)
• (IC103 1,7)
No DC produced
Input signal output with level converted
w w w
O.K.
.
END
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Check the following parts (and surrounding area) and
their soldering.
N.G.
• [IC208] (BD4730)
• [IC201] circumference of 9pin(TAS5066PAGRG4)
Also circuits connected to this part
Check the following parts (and surrounding area) and
their soldering.
• [X201]
(X-TAL)
• [IC202]
(SN74HCU04APWR)
N.G.
• [IC201] circumference of 2pin(TAS5066PAGRG4)
• [IC203] circumference of 15pin(PCM1803DBR)
• [IC204] circumference of 15pin(PCM1803DBR)
Also circuits connected to this part
Check the following parts (and surrounding area) and
their soldering.
N.G.
• [IC201] ALL pin
(TAS5066PAGRG4)
Also circuits connected to this part
Check the following parts (and surrounding area) and
their soldering.
N.G.
• [IC206] ALL pin
(TAS5142DKD)
• [IC207] ALL pin
(TAS5121DKDR)
Also circuits connected to this part
Check the following parts (and surrounding area) and
their soldering.
• [RL201,RL202]
(DS2SU12VDC)
N.G.
• [TR205]
(KRC102S)
• [TR206]
(TR206)
Also circuits connected to this part
Check the following parts (and surrounding area) and
their soldering.
N.G.
• [IC203]
(PCM1803DBR)
• [IC204]
(PCM1803DBR)
Also circuits connected to this part
Check the following parts (and surrounding area) and
their soldering.
• [IC101]
(RC4580)
N.G.
• [IC102]
(RC4580)
• [IC103]
(RC4580)
Also circuits connected to this part
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1. 1U-3811 (D.AMP/SMPS UNIT)
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S-302
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