Denon RCD-N7 Service Manual page 41

Check controll signal for PWM CONTROLLER.
MAIN B'D
• [IC51] : 24,25pin
5508_SDA, 5508_SCL
• [IC51] : 13,14pin
PDN,MUTE
"H" level O.K.?
2.2. CD PLAY
Check Power Supply Voltages for CD.
MAIN B'D
• [CN45] : 6pin +7V
• [CN45] : 10pin +3.3V_D
Check Power Supply Voltages for CD.
MAIN B'D
• +1.5VD [IC18] : 2pin 1.5V OK?
Check Reset signal for CD.
MAIN B'D
• [IC21] : 69pin /RST "H" level O.K.?
• [IC11] : 78pin DECRST "H" level O.K.?
Check Oscillation waveform.
MAIN B'D
• [IC21] : 49pin XO
16.9344MHz OK?
Check Digital Audio Data for CODEC.
MAIN B'D
• [IC41] : 2pin CD_SPDIF
z
Check Digital Audio Data output from CODEC.
MAIN B'D
• [IC41] : 13,15,16pin
5508_LRCK,5508_SCLK,5508_SDATA
Check Digital Audio Data input for PWM CONTROLLER.
MAIN B'D
• [IC51] : 26,27,28pin
5508_LRCK,5508_SCLK,5508_SDATA
END
OK
OK
OK
OK
OK
OK
OK
Check Soldering.
NG
• [IC11] : 94,92pin
5508_SDA, 5508_SCL on MAIN B'D
• [IC51] : 13,14pin PDN,MUTE on MAIN B'D
Check Soldering.
NG
• MAIN B'D [CN45] : 6pin +7V, 10pin +3.3V_D
[BN58] : 1,3pin +3.3VD, +5V
• SMPS B'D
NG
Check Soldering.
• [IC18] on MAIN B'D
NG
Check Soldering.
• [IC11] : 78pin DECRST on MAIN B'D
NG
Check Soldering.
• [X201] on MAIN B'D
Check Soldering.
NG
• [IC21] : 33pin CD_SPDIF on MAIN B'D
• [IC41] : 2pin CD_SPDIF on MAIN B'D
NG
Check Soldering.
• [IC41] : 13,15,16pin on MAIN B'D
NG
Check Soldering.
• [IC51] : 26,27,28pin on MAIN B'D
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