Denon RCD-N7 Service Manual page 42

Check PWM Audio Data output from PWM CONTROLLER.
MAIN B'D
• [IC51] : 44,45,40,41pin
Check PWM Audio Data output for PWM CONTROLLER.
MAIN B'D
• [IC71,IC72] : 14,16pin
Check Audio Data output from AMP to SPEAKER.
MAIN B'D
• [IC71,IC72] : 22,25pin
• [JK71]
2.3 . AM/FM TUNER-in
Check Power Supply Voltages for AM/FM TUNER.
MAIN B'D
• [CN31] : 4pin +9V
• [CN45] : 2pin +12V
Check Analog Audio Data output from TUNER PACK.
MAIN B'D
• [TUNER PACK] output and [CN31]
: 7,5pin TUNER_L_IN, TUNER_R_IN
• [IC41] : 59,60pin
to 2.2. CD PLAY z Mark
2.4. Portable In
Check Analog Audio Signal from Portable In.
Portable In B'D
• [Portable In] input
• [BN81] : 1,3pin AUX_L_IN,AUX_R_IN
Check Audio Data input from DISPLAY B'D.
MAIN B'D
• [IC41] : 61,62pin AUX1_L_IN, AUX1_R_IN
to 2.2. CD PLAY z Mark
OK
OK
END
OK
OK
OK
OK
NG
Check Soldering.
• [IC51] on MAIN B'D
NG
Check Soldering.
• [IC71,IC72] on MAIN B'D
Check Soldering.
NG
• [IC71,IC72] on MAIN B'D
• [JK71] on MAIN B'D
Check Soldering.
NG • [CN45] : 2pin +12V on MAIN B'D
• SMPS B'D
Check Parts
• [IC26]
Check Soldering.
NG
• [CN31]
: 7,5 pin TUNER_L_IN, TUNER_R_IN on MAIN B'D
• [C426],[C427] on MAIN B'D
NG Check Soldering.
• [JK83] on FRONT B'D
• [BN81] on FRONT B'D
NG
Check Soldering.
• [CN44] : 1,3pin AUX1_L_IN, AUX1_R_IN
• [C428], [C429] on MAIN B'D
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