Denon S-52 Service Manual page 39

3. No Sound,Noise generated
(1) CD PLAY(S-52,S-52DAB only)
Check Power Supply Voltages for AUDIO.
1U-3846-1(MAIN UNIT)
+12V_A1
O.K.
Check Power Supply Voltages for CODEC(IC300).
1U-3846-1(MAIN UNIT)
[IC300]:1,33,43,50 pin
+5V OK?
O.K.
Check Reset signal for CODEC.
1U-3846-1(MAIN UNIT)
[IC300]:25pin
[CODEC_PDN]:"H"level O.K.?
O.K.
Check Oscillation waveform.
1U-3846-1(MAIN UNIT)
[IC300]:22pin
11.2896MHz OK?
O.K.
Check Clock Signal for CODEC.
1U-3846-1(MAIN UNIT)
[IC300]:24pin
12.288MHz OK?
O.K.
Check control signal for CODEC.
1U-3846-1(MAIN UNIT)
[CODEC_CDTI],[CODEC_CCLK],
[CODEC_CSN],[CODEC_INT],[CODEC_CDTO]
O.K.
Check Digital Audio Data Clock from CODEC to BF.
1U-3846-1(MAIN UNIT)
[IC300]output and [IC101]input:
[CODEC_FS]:44.1kHz OK?
[CODEC_64FS]:2.8224MHz OK?
O.K.
Check Digital Audio Data output from BF to CODEC.
1U-3846-1(MAIN UNIT)
[IC101]output and [IC300]input:
[D/A_DATA]
O.K.
N.G Check Soldering.
1U-3859-1(POWER UNIT).
CX111 on MAIN UNIT.
N.G Check Soldering.
IC302 on MAIN UNIT.
N.G Check Soldering.
[IC701]:25pin on MAIN UNIT.
N.G Check Soldering.
X302 on MAIN UNIT.
N.G Check Soldering.
IC303 on MAIN UNIT.
N.G Check Soldering.
IC701 on MAIN UNIT.
Check Soldering.
N.G [IC300]:10,11pin on MAIN UNIT.
R132,R133,R142,R143,R309,R310
on MAIN UNIT.
Check Soldering.
N.G [IC300]:32pin on MAIN UNIT.
R129,R134 on MAIN UNIT.
3. 音声出力せず、ノイズ発生
(1) CD 再生時(S-52,S-52DABのみ)
ｵｰﾃﾞｨｵ用電源電圧確認
1U-3846-1(MAIN UNIT)
・ +12V_A1
O.K.
CODEC(IC300)用電源電圧確認
1U-3846-1(MAIN UNIT)
・ [IC300]:1,33,43,50 pin
+5V OK?
O.K.
CODEC用RESET信号の確認
1U-3846-1(MAIN UNIT)
・ [IC300]:25pin
[CODEC_PDN]:"H"level O.K.?
O.K.
発振波形確認
1U-3846-1(MAIN UNIT)
・ [IC300]:22pin
11.2896MHz OK?
O.K.
CODEC用ｸﾛｯｸ信号の確認
1U-3846-1(MAIN UNIT)
・ [IC300]:24pin
12.288MHz OK?
O.K.
CODEC制御信号の確認
1U-3846-1(MAIN UNIT)
・ [CODEC_CDTI],[CODEC_CCLK],
[CODEC_CSN],[CODEC_INT],[CODEC_CDTO]
O.K.
CODECからBFへのﾃﾞｼﾞﾀﾙｵｰﾃﾞｨｵﾃﾞｰﾀ用ｸﾛｯｸの確認
1U-3859-1(POWER UNIT)
[IC300]output and [IC101]input:
・ [CODEC_FS]:44.1kHz OK?
・ [CODEC_64FS]:2.8224MHz OK?
O.K.
BFからCODECへのﾃﾞｼﾞﾀﾙｵｰﾃﾞｨｵﾃﾞｰﾀの確認
1U-3846-1(MAIN UNIT)
・ [IC101]output and [IC300]input:
[D/A_DATA]
O.K.
39
S-52/S-52DAB/S-32
N.G 半田付けを確認
・ 1U-3859-1(POWER UNIT).
・ CX111 on MAIN UNIT.
N.G 半田付けを確認
・ IC302 on MAIN UNIT.
N.G 半田付けを確認
・ [IC701]:25pin on MAIN UNIT.
N.G 半田付けを確認
・ X302 on MAIN UNIT.
N.G 半田付けを確認
・ IC303 on MAIN UNIT.
N.G 半田付けを確認
・ IC701 on MAIN UNIT.
半田付けを確認
N.G ・ [IC300]:10,11pin on MAIN UNIT.
・ R132,R133,R142,R143,R309,R310
on MAIN UNIT.
半田付けを確認
N.G ・ [IC300]:32pin on MAIN UNIT.
・ R129,R134 on MAIN UNIT.