Denon AVR-1612 Service Manual

46
TROUBLE SHOOTING
1. POWER
1.1. Power not turn on
YES YES
YES
NO
NO
YES
NO
NO
0.6V or -0.6V
When the power turned on,
does the ON/STANDBY
indicator on the front panel
ashing green?
Is the fuse blown?
About 10 seconds later,
does the ON/STANDBY
indicator on the front panel
turn lighting green ?
Check voltage of CN151 (1-
2PIN) of DIGITAL B'D while
the ON/STANDBY indicator
is ashing green.
Pull out connector (CN703) of
MAIN BD, and check "2. Errors
checking mode".
(Refer to 17 page.)
Power not turn on.
Is the fuse blown?
When the power turned on,
does the ON/STANDBY
indicator on the front panel
ashing red?
Is a DC 5V voltage being
supplied from the SMPS
B'D (BN903) to the DIGITAL
B'D?
Refer to 1.2.Fuse is blown.
Refer to 1.2. Fuse is blown.
Check circuitry and parts from CN151
on the DIGITAL B'D to the µ-com for
damage and shortcircuits, and replace
any defective parts.
Check "2. Errors
checking mode".
(Refer to 17 page.)
Are there any incomplete
connections in the connectors
connecting between the
various circuit boards?
Is a DC 5V voltage output
when the cord supplying the
power from the SMPS B'D
to the DIGITAL B'D (CN151)
is unplugged?
Check µ-com periphery
circuitry of DIGITAL B'D and
replace any defective parts.
Check circuitry and parts from
CN151 on the DIGITAL B'D
to the µ-com power supply for
damage and shortcircuits, and
replace any defective parts.
Connect the connectors properly.
To troubleshooting
6. SMPS.
(Refer to 60 page.)
NO
YES
YES
0V
YES
NO
NO NO
Check for leaks or short
circuits in the primary side
parts, and replace any
defective parts.
Fuse is blown
Check for short circuits in the
rectier diodes and circuitry of
the secondary side rectifying
circuits, and replace any
defective parts.
After repairing, also replace the fuse.
Check for short circuits in
the power stabilizer unit's
regulator output terminal and
the ground, and replace any
defective parts.
1.2. Fuse is blown
YES

Denon AVR-1612 Specifications

General

Audio output channels	5.1 channels
Audio A/D Converter (ADC)	24-bit/96kHz
Power output per channel (1KHz@6 Ohm)	120 W
Power output per channel (20-20KHz@8 Ohm)	80 W
HDMI in	4
Composite video in	3
S-Video inputs quantity	1
Speakers connectivity type	-
Ethernet LAN	No
Radio Data System (RDS)	Yes
Preset stations quantity	56
Analog signal format system	NTSC, PAL
Display	LCD
HDMI version	1.4
Product color	Black
Audio decoders	Dolby Digital, Dolby Digital EX, Dolby Digital Plus, Dolby Pro Logic II, Dolby Pro Logic IIx, Dolby Pro Logic IIz, Dolby TrueHD, DTS 96/24, DTS Neo:6, DTS-ES, DTS-HD
Apple docking compatibility	iPod
Graphical user interface (GUI) language	English, French, German
AC input voltage	220-240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.5 W
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 80 %

Weight and Dimensions

Depth	382 mm
Width	435 mm
Height	162 mm
Weight	9200 g