Denon AVR-X2400H Service Manual page 75

B
Input/Output
CVBS
q
NO
Check the settings of each IC.
Are the following voltages set?
DIGITAL PCB
DIGITAL PCB faulty.
[N1039 : 12 pin] : Hi (3.3V)
[N1039 : 13 pin] : Hi (3.3V)
[N1039 : 14 pin] : Lo (0V)
YES
w
Extend the DIGITAL PCB using the jig.
e
NO
Is the power voltage being output cor-
rectly? Check the connection between the FRONT CONNECTOR PCB
V+5V : [C5029 : + side] and the VIDEO PCB.
V-5V : [C5031 : - side]
YES
r
NO
Is a signal being output from the video • Check the [IC5001] power voltage and check the soldering
amplifier? of the surrounding circuits.
CVBS : [JACK5000 : C_out] • The pattern between [IC5001 and JACK5000] is faulty.
YES
• Check the operation again.
b These instructions refer to the VIDEO PCB unless otherwise specified.
C
Input/Output
COMPONENT
q
NO
Check the settings of each IC.
Are the following voltages set?
DIGITAL PCB
[N1039 : 11pin] : Lo (0 V)
[N1039 : 15pin] : Hi (3.3 V)
YES
w
Extend the DIGITAL PCB using the jig.
e
NO
Is the power voltage being output cor-
rectly?
V+5V : [C5029 : + side]
V-5V : [C5031 : - side]
YES
r
NO
Is a signal being output from the video
amplifier?
COMP-Y : [JACK5001 out_Y]
COMP-Cb : [JACK5001 out_]
COMP-Cr : [JACK5001 out_Cr]
YES
• Check the operation again.
b These instructions refer to the VIDEO PCB unless otherwise specified.
75
DIGITAL PCB faulty.
Check the connection between the FRONT CONNECTOR PCB
and the VIDEO PCB.
• Check the [IC5002] power voltage and check the soldering
of the surrounding circuits.
• The pattern between [IC5002, JACK5002 and JACK5003] and
is faulty.