Denon AVR-X4100, Руководство по обслуживанию

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The circuit around CX870 is faulty.
YES
YES
YES
YES
YES
YES
Can an output voltage (3.3V) to IC112
be confirmed?
Can an output voltage (3.3V) to
Q1107(FET_SW) be confirmed?
Can an output voltage (1.2V) to IC115
be confirmed?
Can an output voltage (1.9V) to IC116
be confirmed?
Are the versions of the Ethernet SBL and IMG displayed in Version
Check Mode?
Can a voltage (5V) be confirmed between pin 2 and pin 5 of
CN903?
Is D5V_POWER (IC151 uCOM 85pin)
"Hi" ?
Is E_POWER1 (IC151 uCOM 53pin) "Hi"
?
Is E_POWER4 (IC151 uCOM 56pin) "Hi"
?
Is E_POWER2 (IC151 uCOM 54pin) "Hi"
?
The circuit of D5V_POWER between
IC151 and IC112 are faulty.
The circuit of E_POWER1 between
IC151 and Q1107 are faulty.
The circuit of E_POWER4 between
IC115 and IC115 are faulty.
The circuit of E_POWER2 between
IC151 and IC116 are faulty.
The circuit around IC112(DC-DC.Conv.)
is faulty.
The circuit around Q1107(FET_SW) is
faulty.
The circuit around IC115(DC-DC.Conv.)
is faulty.
The circuit around IC116(DC-DC.Conv.)
is faulty.
The Ethernet software is faulty.
The circuit between the AC inlet and CN903
is faulty. Check the SMPS PCB.
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
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