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Ver. 1
SERVICE MANUAL
MODEL JP E3 E2 EK E2A E1C E1K EUT
DVD-2500BTCI
BLU-RAY DISC/DVD VIDEO TRANSPORT
For purposes of improvement, specifications and
design are subject to change without notice.
Please use this service manual with referring to the
operating instructions without fail.
Some illustrations using in this service manual are
slightly different from the actual set.
e
Denon Brand Company, D&M Holdings lnc.
X0374 V.01 DE/CDM 0801
--- MEMO---
2
DVD-2500BTCI
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power
cord is less than 460 kohms, the unit is defective.
LASER RADIATION
Caution - Class 1M visible and invisible laser radiation when open.
Do not view directly with optical instruments.
CAUTION Please heed the points listed below during servicing and inspection.
Heed the cautions! Inspect for safety after servicing!
Spots requiring particular attention when servicing, such as Check that all screws, parts and wires removed or discon-
the cabinet, parts, chassis, etc., have cautions indicated on nected for servicing have been put back in their original posi-
labels or seals. Be sure to heed these cautions and the cau- tions, inspect that no parts around the area that has been
tions indicated in the handling instructions. serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
Caution concerning electric shock! blades of the power plug, and otherwise check that safety is
ensured.
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
(Insulation check procedure)
electric shock. Take care to avoid electric shock, by for ex-
Unplug the power cord from the power outlet, disconnect the
ample using an isolating transformer and gloves when
antenna, plugs, etc., and turn the power switch on. Using a
servicing while the set is energized, unplugging the power
500V insulation resistance tester, check that the insulation re-
cord when replacing parts, etc.
sistance between the terminals of the power plug and the ex-
(2)There are high voltage parts inside. Handle with extra care ternally exposed metal parts (antenna terminal, headphones
when the set is energized. terminal, microphone terminal, input terminal, etc.) is 1M or
greater. If it is less, the set must be inspected and repaired.
Caution concerning disassembly and assembly!
Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are moved CAUTION Concerning important safety parts
across them. Use gloves to protect your hands.
Many of the electric and structural parts used in the set have
Only use designated parts! special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
The set's parts have specific safety properties (fire resis- with higher ratings (rated power and withstand voltage) does
tance, voltage resistance, etc.). For replacement parts, be not necessarily guarantee that safety performance will be pre-
sure to use parts which have the same properties. In particu- served. Parts with safety properties are indicated as shown
lar, for the important safety parts that are marked z on wiring below on the wiring diagrams and parts lists is this service
diagrams and parts lists, be sure to use the designated parts. manual. Be sure to replace them with parts with the designat- z
ed part number. z
Be sure to mount parts and arrange the z
wires as they were originally! (1) Schematic diagrams ... Indicated by the z mark.
For safety reasons, some parts use tape, tubes or other insu- (2) Parts lists ... Indicated by the z mark.
lating materials, and some parts are mounted away from the
Using parts other than the designated parts
surface of printed circuit boards. Care is also taken with the
could result in electric shock, fires or other
positions of the wires inside and clamps are used to keep
dangerous situations.
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.
Cautions concerning the power supply!
Current continues to flow in the set for 10 to 20 seconds after
the power cord is unplugged. Wait until the power LED turns
completely off before proceeding
3
DVD-2500BTCI
DIMENSION WIRE ARRANGEMENT
If wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange
them neatly as they were originally bundled or placed afterward.
Otherwise, incorrect arrangement can be a cause of noise generation.
Wire arrangement viewed from the top
4
DVD-2500BTCI
SPECIFICATIONS
Item
Output jack: 19-pin HDMI terminal, 1 set
HDMI Output HDMI (Deep Color, Dolby Digital Plus, Dolby TrueHD, DTS-
HD)
Note:
1. Power supply: AC 120 V, 60 Hz
5
DVD-2500BTCI
LASER BEAM SAFETY PRECAUTIONS
This BD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.
CAUTION: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Drive Mechanism Assembly
Laser Beam Radiation
Laser Pickup
Turntable
CAUTION
LASER RADIATION
WHEN OPEN. DO NOT
STARE INTO BEAM.
Location: Top of BD mechanism.
6
DVD-2500BTCI
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and
wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified
values to verify compliance with safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance distance (d) and (d') between
soldered terminals, and between terminals and Chassis or Secondary Conductor
surrounding metallic parts. (See Fig. 1)
Primary Circuit
Table 1: Ratings for selected area
AC Line Voltage Clearance Distance (d), (d') d' d
120 V 3.2 mm (0.126 inches)
Note: This table is unofficial and for reference only. Be
sure to confirm the precise values.
Fig. 1
2. Leakage Current Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs) and
externally exposed accessible parts (RF terminals, Exposed Accessible Part
antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.) is
Z
lower than or equal to the specified value in the table
below.
Measuring Method (Power ON): AC Voltmeter
(High Impedance)
Insert load Z between B (earth ground, power cord plug
prongs) and exposed accessible parts. Use an AC
voltmeter to measure across the terminals of load Z.
See Fig. 2 and the following table.
Earth Ground
B
Power Cord Plug Prongs
Fig. 2
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
0.15 F CAP. & 1.5 k RES.
120 V i 0.5 mA Peak Exposed accessible parts
Connected in parallel
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
7
DVD-2500BTCI
STANDARD NOTES FOR SERVICING
Circuit Board Indications Pb (Lead) Free Solder
1. The output pin of the 3 pin Regulator ICs is When soldering, be sure to use the Pb free solder.
indicated as shown.
How to Remove / Install Flat Pack-IC
Top View Bottom View
Input 1. Removal
Out In
With Hot-Air Flat Pack-IC Desoldering Machine:
1. Prepare the hot-air flat pack-IC desoldering
2. For other ICs, pin 1 and every fifth pin are machine, then apply hot air to the Flat Pack-IC
indicated as shown. (about 5 to 6 seconds). (Fig. S-1-1)
5
Pin 1
10
3. The 1st pin of every male connector is indicated as
shown.
Fig. S-1-1
Pin 1
2. Remove the flat pack-IC with tweezers while
applying the hot air.
Instructions for Connectors 3. Bottom of the flat pack-IC is fixed with glue to the
1. When you connect or disconnect the FFC (Flexible CBA; when removing entire flat pack-IC, first apply
Foil Connector) cable, be sure to first disconnect soldering iron to center of the flat pack-IC and heat
the AC cord. up. Then remove (glue will be melted). (Fig. S-1-6)
2. FFC (Flexible Foil Connector) cable should be 4. Release the flat pack-IC from the CBA using
inserted parallel into the connector, not at an tweezers. (Fig. S-1-6)
angle.
CAUTION:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
FFC Cable 2. Do not supply hot air to the chip parts around the
flat pack-IC for over 6 seconds because damage
to the chip parts may occur. Put masking tape
Connector around the flat pack-IC to protect other parts from
damage. (Fig. S-1-2)
CBA
* Be careful to avoid a short circuit.
8
DVD-2500BTCI
With Iron Wire: 2. Installation
1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from
all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA
flux which is applied to all pins of the flat pack-IC, so you can install a replacement flat pack-IC more
you can remove it easily. (Fig. S-1-3) easily.
2. Affix the wire to a workbench or solid mounting 2. The "" mark on the flat pack-IC indicates pin 1.
point, as shown in Fig. S-1-5. (See Fig. S-1-7.) Be sure this mark matches the 1
3. While heating the pins using a fine tip soldering on the PCB when positioning for installation. Then
iron or hot air blower, pull up the wire as the solder presolder the four corners of the flat pack-IC. (See
melts so as to lift the IC leads from the CBA Fig. S-1-8.)
contact pads as shown in Fig. S-1-5. 3. Solder all pins of the flat pack-IC. Be sure that
4. Bottom of the flat pack-IC is fixed with glue to the none of the pins have solder bridges.
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6) Example :
5. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
Note: When using a soldering iron, care must be
taken to ensure that the flat pack-IC is not
being held by glue. When the flat pack-IC is
removed from the CBA, handle it gently
because it may be damaged if force is applied.
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Hot Air Blower Fig. S-1-7
or
Presolder
Iron Wire
Soldering Iron
To Solid
Mounting Point
Fig. S-1-5
Flat Pack-IC
CBA
Fine Tip Fig. S-1-8
CBA Soldering Iron
Flat Pack-IC
Tweezers
Fig. S-1-6
9
DVD-2500BTCI
Instructions for Handling Semi-
conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by
electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 M) that is
properly grounded to remove any static electricity that
may be charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate
with proper grounding (1 M) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escape through the body grounding
band, be careful to avoid contacting semi-conductors
with your clothing.
CBA
Grounding Band
1M
CBA
1M
Conductive Sheet or
Copper Plate
10
DVD-2500BTCI
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart 3. Disassembly Method
This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling, Removal
ID/
follow the steps in reverse order. Bend, route, and Loc. Part Remove/*Unhook/
dress the cables as they were originally. Fig.
No. Unlock/Release/ Note
No.
[1] Top Cover
Unplug/Desolder
[1] Top Cover D1 9(S-1), 2(S-2) ---
[2] Top Panel
[2] Top Panel D2 10(S-3) ---
[3] Tray Panel
[3] Tray Panel D3 *2(L-1) 1
[4] Front Assembly [5] Front CBA
2(S-4), 2(S-5), (S-5a),
[8] Front Bracket [6] Power SW CBA Front
[4] D3 *3(L-2), *CN2001, 1
Assembly
[9] Rear Panel [7] SD CBA *CN4002
[10] BE Main CBA Unit
[5] Front CBA D4 7(S-6) ---
Power SW
[11] FE Main CBA & BD Mechanism Assembly [6] D4 2(S-7), Desolder ---
CBA
[12] Fan Holder
2(S-8), SD PCB
[7] SD CBA D4 ---
[13] Fan Motor Holder
Front
[8] D5 2(S-9) ---
[14] RS232C CBA [15] Power Bracket
Supply CBA
2(S-10), 2(S-11),
[17] Sub Microcontroller CBA
2(S-12), (S-13),
[9] Rear Panel D5 2
[16] AV CBA (S-14), 3(S-15),
*CN1003
[18] Pedestal
4(S-16), 4(S-17),
2. Disassembly of Main parts BE Main
3(S-18), *CN6401,
[10] D6 *CN7001, *CN7401, 2
When replacing the main parts, see the following pro- CBA Unit
BE Scaler Holder, BE
cedures. For more details, refer to Fig. D1~D9. Scaler Sub Holder
Part Steps FE Main
[10] BE Main CBA Unit [1] [2] *[9](S-14) [10] CBA & BD
[11] D7 4(S-19), *CN2601 ---
Mechanism
FE Main CBA & BD [1] [2] [3] *[9](S-14)
[11] Mechanism Assembly
Assembly [10] [11]
[12] Fan Holder D7 2(S-20), *CN2500 ---
[12] Fan Holder [1] [2] *[9](S-14) [10]
[12] [13] Fan Motor D7 2(S-21) ---
[1] [2] *[9](S-14) [10]
[13] Fan Motor
[12] [13] RS232C 3(S-22), *CN2551,
[14] D8 ---
CBA RS232C Holder
[14] RS232C CBA [1] [2] [9] [10] [14]
[1] [2] *[9](S-14) [12] Power 2(S-23), 2(S-24),
[15] Power Supply CBA [15] [15] Supply D8 2(S-25), *CN2501, ---
[1] [2] [3] [9] [10] [11] CBA Power PCB Holder
[16] AV CBA
[12] [13] [14] [16]
[16] AV CBA D8 7(S-26), *CN2503 ---
[17] Sub Microcontroller
CBA [1] [2] [17] Sub
[17] Microcontro D9 4(S-27) ---
*About *[9](S-14), remove only (S-14) of Rear Panel. ller CBA
Note: Be sure to unplug the power cord from the [18] Pedestal D9 3(S-28) ---
power outlet before disassembling.
"Current continues to flow in the set for 10
to 20 seconds after the power cord is (1) (2) (3) (4) (5)
unplugged. Wait until the power LED turns
completely off before proceeding."
11
DVD-2500BTCI
Note:
(1) Identification (location) No. of parts in the figures (S-3)
(2) Name of the part [2] Top Panel (S-3)
(3) Figure Number for reference (S-3)
(4) Identification of parts to be removed, unhooked, (S-3)
unlocked, released, unplugged, unclamped, or
desoldered.
P = Spring, L = Locking Tab, S = Screw,
CN = Connector
* = Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
(5) Refer to "Reference Notes."
About tightening screws
When tightening screws, tighten them with the
following torque.
Torque
0.45