24
RCD-M37 / RCD-M37DAB / D-E500 / D-M37
2. No Sound,Noise generated
2. 音声出力せず
(1) CD PLAY
Check Power Supply Voltages for CD
MCU_CD_USB B'D
N.G
Check Soldering.
䊶
CN98 1pin +8VM
䊶
MCU_CD_USB B'D CN98 1,3pin
䊶
CN91 3pin USB+5V
+8VM, USB+5V
䊶
POWER B'D
O.K.
Check Power Supply Voltages for CD
Check Soldering.
MCU_CD_USB B'D
N.G
䊶
IC31 on MCU_CD_USB B'D
䊶
D+3.3V [IC31]: 2pi 3.3V OK?
䊶
IC32 on MCU_CD_USB B'D
䊶
+1.5V
[IC32]: 2pi 1.5V OK?
Check Parts
䊶
IC31,,IC32
O.K.
Check Power Supply Voltages for DAC
Check Soldering.
INPUT B'D
N.G
䊶
CN 72 9pin SW+5V
䊶
[IC15] :14pin VDD
5V OK?
䊶
POWER B'D
O.K.
Check Reset signal for C
䌄
MCU_CD_USB B'D
N.G
Check Soldering.
䊶
[IC27]:37pin /RST
Hlevel O.K.?
䊶
[IC24]:56pin CD_DSP_RST on MCU_CD_USB B'D
䊶
[IC21]:61pin DSP_RSHlevel O.K.?
O.K.
Check Reset signal for DAC
INPUT B'D
N.G
Check Soldering.
䊶
[IC15] :5pin AKRST
䊶
[IC24]:71pin AK_RST on MCU_CD_USB B'D
Hlevel O.K.?
O.K.
Check Oscillation waveform.
MCU_CD_USB B'D
N.G
Check Soldering.
䊶
[IC27]:24pin XO
䊶
X301 on MCU_CD_USB B'D
16.9344MHz OK?
O.K.
Check Oscillation waveform.
MCU_CD_USB B'D
N.G
Check Soldering.
䊶
[IC21]:73pin X2
䊶
X302 on MCU_CD_USB B'D
9.0MHz OK?
O.K.
Check Clock Signal for DAC
Check Soldering.
INPUT B'D
N.G
䊶
IC27 on MCU_CD_USB B'D
䊶
[IC15]:1pin MCLK
䊶
BN12 on MCU_CD_USB B'D
16.9344MHz OK?
䊶
CN12 on INPUT B'D
O.K.
Check controll signal for DAC
Check Soldering.
INPUT B'D
N.G
䊶
IC24 on MCU_CD_USB B'D
䊶
[IC15]:6,7,8 pin AKCS,AKCLK,AKCON
䊶
WN12 6,7,8pin on MCU_CD_USB B'D
AK_CDTI,AK_CLK,AK_CS
䊶
WF12 on INPUT B'D
O.K.
2. 音声出力せず
(1) CD 再生時
CD用電源電圧確認
MCU̲CD̲USB B'D
N.G
半田付けを確認
・ CN98 1pin +8VM
・ MCU̲CD̲USB B'D CN98 1,3pin
・ CN91 3pin USB+5V
+8VM, USB+5V
・ POWER B'D
O.K.
CD用電源電圧確認
半田付けを確認
MCU̲CD̲USB B'D
N.G
・ IC31 on MCU̲CD̲USB B'D
・ D+3.3V IC31 2pin 3.3V OK?
・ IC32 on MCU̲CD̲USB B'D
・ +1.5V
IC32 2pin 1.5V OK?
部品確認
・ IC31,,IC32
O.K.
DAC用電源電圧確認
半田付けを確認
INPUT B'D
N.G
・ CN 72 9pin SW+5V
・ [IC15] :14pin VDD
5V OK?
・ POWER B'D
O.K.
CD用RESET信号の確認
MCU̲CD̲USB B'D
N.G
半田付けを確認
・ [IC27]:37pin /RST
Hlevel O.K.?
・ [IC24]:56pin CD̲DSP̲RST on MCU̲CD̲USB B'D
・ [IC21]:61pin DSP̲RSHlevel O.K.?
O.K.
DAC用RESET信号の確認
INPUT B'D
N.G
半田付けを確認
・ [IC15] :5pin AKRST
・ [IC24]:71pin AK̲RST on MCU̲CD̲USB B'D
Hlevel O.K
O.K.
発振波形確認
MCU̲CD̲USB B'D
N.G
半田付けを確認
・ [IC27]:24pin XO
・ X301 on MCU̲CD̲USB B'D
16.9344MHz OK?
O.K.
発振波形確認
MCU̲CD̲USB B'D
N.G
半田付けを確認
・ [IC21]:73pin X2
・ X302 on MCU̲CD̲USB B'D
9.0MHz OK?
O.K.
DAC用クロック信号の確認
半田付けを確認
INPUT B'D
N.G
・ IC27 on MCU̲CD̲USB B'D
・ [IC15]:1pin MCLK
・ BN12 on MCU̲CD̲USB B'D
16.9344MHz OK?
・ CN12 on INPUT B'D
O.K.
DAC用制御信号の確認
半田付けを確認
INPUT B'D
N.G
・ IC24 on MCU̲CD̲USB B'D
・ [IC15]:6,7,8 pin AKCS,AKCLK,AKCON
・ WN12 6,7,8pin on MCU̲CD̲USB B'D
AK̲CDTI,AK̲CLK,AK̲CS
・ WF12 on INPUT B'D
O.K.
Summary of Contents for D RCD-M37
Page 4: ...4 RCD M37 RCD M37DAB D E500 D M37 DIMENSION ...
Page 29: ...29 RCD M37 RCD M37DAB D E500 D M37 BLOCK DIAGRAM ...
Page 32: ...32 RCD M37 RCD M37DAB D E500 D M37 TMP92FD28AFG Block diagram ...
Page 33: ...33 RCD M37 RCD M37DAB D E500 D M37 TMP92FD28AFG Pin function ...
Page 34: ...34 RCD M37 RCD M37DAB D E500 D M37 ...
Page 35: ...35 RCD M37 RCD M37DAB D E500 D M37 TC94A70FG IC27 ...
Page 45: ...45 RCD M37 RCD M37DAB D E500 D M37 TA2125AF IC34 TA2125AF Terminal Function ...
Page 46: ...46 RCD M37 RCD M37DAB D E500 D M37 AK4385 IC15 ...
Page 48: ...48 RCD M37 RCD M37DAB D E500 D M37 MEMO ...
Page 49: ...49 RCD M37 RCD M37DAB D E500 D M37 PRINTED WIRING BOARDS MCU UNIT 1 2 COMPONENT SIDE ...
Page 50: ...50 RCD M37 RCD M37DAB D E500 D M37 MCU UNIT 2 2 FOIL SIDE ...
Page 51: ...51 RCD M37 RCD M37DAB D E500 D M37 INPUT UNIT 1 2 COMPONENT SIDE ...
Page 52: ...52 RCD M37 RCD M37DAB D E500 D M37 INPUT UNIT 2 2 FOIL SIDE ...
Page 53: ...53 RCD M37 RCD M37DAB D E500 D M37 MAIN UNIT ...
Page 54: ...54 RCD M37 RCD M37DAB D E500 D M37 MEMO ...
Page 67: ...67 RCD M37 RCD M37DAB D E500 D M37 MEMO ...
Page 81: ...81 RCD M37 RCD M37DAB D E500 D M37 WIRING DIAGRAM ...