Denon DRA-N5 Service Manual page 38

2.3. Digital In
Check Power Supply Voltages for OPTICAL Input IC.
AMP B'D
• [JACK101] : 1pin +3V3_D1
MAIN B'D
• [IC401] : 3pin +3V3_D1
Check Digital Audio Data from OPTICAL Input IC
AMP B'D
• [IC103] : 28pin OPT_IN
to 2.2. Analog IN ( z ) Mark
OK
OK
Check Soldering.
NG
• [JACK101] : 1pin +3V3_D1 on AMP B'D
• [IC401] IN : +5V_SMPS1 / OUT : +3V3_D1 on MAIN B'D
• [CN410] : 4,5pin +5V_SMPS1 on MAIN B'D
• [CN005] : 4,5pin +5V_SMPS1 on B'D to B'D (CNT1)
• [CN006] : 9,10pin +5V_SMPS1 on B'D to B'D (CNT1)
• [CN224] : 9,10pin +5V_SMPS1 on SMPS B'D
• [CP413] : 1pin +3V3_D1 on MAIN B'D
• [CN001] : 1pin +3V3_D1 on B'D to B'D (CNT2)
• [CN002] : 23pin +3V3_D1 on B'D to B'D (CNT2)
• [CP102] : 23pin +3V3_D1 on AMP B'D
NG
Check Soldering.
• [IC103] OPT_IN on AMP B'D
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