Denon CEOL RCD-N8, Service Manual

Page: 46 / 107

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Check Power Supply Voltages for CD
MAIN B'D
• +1.5VD [IC901] : 2pin 1.5V OK?
Check Reset signal for CD.
MAIN B'D
• [IC902] : 69pin /RST "H" level O.K.?
Check Power Supply Voltages for CD
MAIN B'D
• [CN408] : 1pin : +12V_D
• [IC282] : IN +12V_D / OUT : +7V5_D1
• [CN408] : 9pin +5V_SMPS1
• [IC104] : IN +5V_SMPS1 / OUT : 3V3_D1
Check Oscillation waveform.
MAIN B'D
• [IC902] : 49pin XO
16.9344MHz OK?
Check Digital Audio Data for CODEC.
MAIN B'D
• [IC103] : 30pin CD_SPDIF
z
Check Digital Audio Data output from CODEC.
MAIN B'D
• [IC103] : 17,18,19pin
5508_LRCK,5508_SCLK,5508_SDATA
OK
OK
OK
OK
OK
OK
2.2. CD PLAY BACK
Check control signal for DIR.
MAIN B'D
• [IC103] : 23,24,25,26pin
DIR_D0,DIR_DI,DIR_CL,DIR_CE
Check Soldering.
• [IC403] : 86,87,88,89pin
DIR_D0,DIR_DI,DIR_CL,DIR_CE
NG
OK
Check control signal for PWM CONTROLLER.
MAIN B'D
• [IC108] : 24,25pin
5508_SDA, 5508_SCL
• [IC108] : 13,14pin
PDN,MUTE
"H" level O.K.?
END
Check Soldering.
• [IC403] : 82,83pin
5508_SDA, 5508_SCL on MAIN B'D
• [IC108] : 13,14pin PDN,MUTE on MAIN B'D
Check Soldering.
• MAIN B'D [CN408]
[IC282],[IC104]
• SMPS B'D
Check Soldering.
• [IC901] on MAIN B'D
Check Soldering.
• [IC403] : 115pin DECRST on MAIN B'D
Check Soldering.
• [X901] on MAIN B'D
Check Soldering.
• [IC902] : 33pin CD_SPDIF on MAIN B'D
• [IC103] : 30pin CD_SPDIF on MAIN B'D
Check Soldering.
• [IC103] : 17,18,19pin on MAIN B'D
NG
NG
NG
NG
NG
NG
NG