NAD M56 Service Manual page 42
Blu-ray disc player
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Also See for M56:
- Bedienungsanleitung (30 pages) ,
- Specifications (2 pages) ,
- Owner's manual (30 pages)
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ELECTRICAL TROUBLESHOOTING GUIDE
No 3.3V
YES
Is the
NO
Vcc(3.8V)
supplied to IC153
Pin1?
YES
Is the
NO
IC153 Pin4
"H"?
YES
Check or Replace
the IC153
No 12V_A
YES
Is the
NO
Vcc(13.5V)
supplied to IC121
Pin1?
YES
Is the
NO
IC151 Pin4
"H"?
YES
Check or Replace
the IC151
Check or Replace
the D123
Check the DVD CTL
"H" signal from μ-com
Check or Replace
the D121
Check the DVD CTL
"H" signal from μ-com
3-28
No 5V
YES
Is the
NO
Vcc(5.5V)
supplied to D132
anode?
YES
Is the
NO
IC152 Pin4
"H"?
YES
Check or Replace
the IC152
No 12V_L
YES
Is the
NO
Vcc(13.5V)
supplied to IC121
Pin1?
YES
Is the
NO
IC154 Pin4
"H"?
YES
Check or Replace
the IC154
Check or Replace
the D132
Check the DVD CTL
"H" signal from μ-com
Check or Replace
the D121
Check the DVD CTL
"H" signal from μ-com
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