ONKYO DPC74 Service Manual

Cover page of ONKYO DPC74 Service Manual

Service Manual for ONKYO DPC74, downloadable as a PDF file.

We also have owner's manual to this model.

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  • The manual has 64 pages
  • File size: 4.68 MB
  • Available language versions: English
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DPC-7.4
SERVICE MANUAL
SERVICE MANUAL
DVD CHANGER
Black model
MODEL
DPC-7.4
120V AC, 60Hz
230-240V AC, 50Hz
BMDD
BMPA
Ref. No. 3765
Aug, 2003
RC-543DV
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
www.denom.com
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DPC-7.4
SERVICE MANUAL
SERVICE MANUAL
DVD CHANGER
Black model
MODEL
DPC-7.4
120V AC, 60Hz
230-240V AC, 50Hz
BMDD
BMPA
Ref. No. 3765
Aug, 2003
RC-543DV
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
www.denom.com
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DPC-7.4
Specifications and features subject to change without notice.
Video system
Standard NTSC (U.S. model), PAL/AUTO (Australian model)
Region code
1 (U.S. model), 4 (Australian model)
Laser
Semiconductor laser, wavelength 650 nm (DVD), 780 nm (CD)
Frequency response
DVD linear audio
4 Hz - 22 kHz @ 48 kHz sampling rate
4 Hz - 44 kHz @ 96 kHz sampling rate
CD audio
4 Hz - 20 kHz
Signal-to-noise ratio (digital audio)
100 dB
Audio dynamic range (digital audio)
93 dB
Harmonic distortion (digital audio)
0.006%
Wow and flutter
Below measurable level (±0.001% (W. PEAK) or less
Operating conditions
Temperature
5 to 35 C (41 F to 95 F)
Installation
Install horizontally
Video outputs
COMPONENT VIDEO
Y: 1.0 V (p-p), 75 ohm, negative sync, RCA/phono x1, BNC x1
PB/PR: 0.7 V (p-p), 75 ohm
S VIDEO (S-Video)
Y: 1.0 V (p-p), 75 ohm, negative sync, 4-pin mini DIN x2
C: 0.286 V (p-p), 75 ohm
VIDEO (composite video)
1.0 V (p-p), 75 ohm, negative sync, RCA/phono x2
Audio outputs
OPTICAL
-22.5 dBm, optical connector x1
COAXIAL
0.5 V (p-p), 75 ohm, RCA/phono x1
ANALOG
2.0 V rms, 440 ohm, RCA/phono x2
General
Power supply
120 V AC, 60 Hz (U.S. model)
230-240 V AC, 50 Hz (Australian model)
Power consumption
13 W
Power consumption in Standby
mode
1.6 W (U.S. model)
2.0 W (Australian model)
Weight
6.4 kg (14.1 lbs.)
Dimensions (W x H x D)
435 x 131 x 436 mm (17-1/8" x 5-3/16" x 17-3/16")
SPECIFICATION
www.denom.com
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DPC-7.4
SERVICE PROCEDURES-1
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs a laser. Therefore, be sure to follow
carefully the instructions below when servicing.
WARNING!!
SERVICE WARNING : DO NOT APPROACH THE
LASER EXIT WITH THE EYE TOO CLOSELY.
IN CASE IT IS NECESSARY TO CONFIRM LASER
BEAM EMISSION, BE SURE TO OBSERVE FROM
A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE
OPTICAL PICKUP BLOCK.
Laser Diode Properties
LASER WARNING
Wavelength: 650/780nm (DVD/CD)
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR
MOISTURE.
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
"dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
WARNING
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
NE PAS
OUVRIR
AVIS
WARNING
This unit contains a semiconductor laser system and is classified
as a "CLASS 1 LASER PRODUCT". So, to use this model
properly, read this Instruction Manual carefully. In case of any
trouble, please contact the store where you purchased the unit.
To prevent being exposed to the laser beam, do not try to open
the enclosure.
VISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK
FAILED OR DEFEATED. DO NOT STARE INTO BEAM.
THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR
ADJUSTMENTS OR PERFORMANCE OF PROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
The label on the right
is applied on the rear
panel except for USA
and Canadian
models.
1. This unit is a CLASS 1 LASER PRODUCT and employs a
laser inside the cabinet.
2. To prevent the laser from being exposed, do not remove
the cover. Refer servicing to qualified personnel.
"CLASS 1 LASER
PRODUCT "
CAUTION:
CAUTION:
SERVICE PROCEDURE
1. Replacing the fuses
REF. NO.
PART NO.
DESCRIPTION
This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse , For fuse rating, refer to
the marking adjest to the symbol.
Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
F001
252185 or
1.6A-UL/T-237
252252
1.6A-T/UL-ST2
LASER BEAM CAUTION LABEL
<MDD>
252075 or
252275
2.5A-SE-EAK
2.5A-SE-TL250V <MPA>
North American area
Australian area
F001
www.denom.com
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DPC-7.4
SERVICE PROCEDURES-2
Factory-shipped condition
Insert the power cord the AC inlet on the rear panel
Push button "ON" (Mechanical SW)
Press the [STOP] and [STANDBY] same time with NO DISC condition.
Push button "STANDBY".
Pull out the power cord.
Push the power switch. (Mechanical switch)
INITIALIZING
2. Safety-check out
(Only U.S.A. model)
After correcting the original service problem perform the
following safety check before releasing the set to the customer
Connect the insulating-resistance tester between the plug of
power supply cord and terminal GND on the back panel.
Specifications: More than 10M ohm at 500V
REMOVE THE SOLDER OF LASER DIODE SHORT
When replace the mechanism or DVD main PC board.
Shorting the solder of Short-circuit land. (2 positions)
www.denom.com
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DPC-7.4
EXPLODED VIEW
3
2
5
6
4
1
A6
A30
A31
A32
A33
A6
A6
A6
A43
A6
A41
A41
A42
A42
A42
A42
A50
A53
A54
A54
A56
A214
A54
A54
A54
A54
A54
A54
E101
F001
U1
U2
E821
A6
A34
M01
M02
M06
M04
M07
M08
M09
M10
M11
M11
M11
M12
M13
M14
M14
M15
M15
P1101
M11
M11
M11
P1001
M17
M18
M19
M50
M32
M35
M36
U8
A6
U9
U12
P707
U3
P2501
P2901
P2401
P2001
A54
Cloth tape
(160)
Cloth
tape
(80)
M11
A6
M51
A32
M52
M51
b
a
d
A6
M25
A1
A3
A6
A6
A6
A6
A6
A52
A54
A54
A55
A218
A220
A6
A6
A221
A226
A54
A54
A54
A6
A6
A6
A6
A6
A6
A6
A6
A6
A6
A6
A6
U4
U5
U6
U10
U11
U13
U14
U15
U30
Cloth tape
A6
M23
M30
M31
(Bracket + Shaft)
A43
A43
A43
c
b
a
d
e
f
A231
A232
g
g
e
h
h
c
e
A233
A6
A6
A6
A6
A41
A42
A42
A43
A43
A43
M38
M38
M38
M39
Cloth tape
(80)
P702
DPC-7.4
A2
A4
A5
A223
A224
i
i
j
j
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