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For U.S.A. & Canada model

Ver. 1
SERVICE MANUAL
MODEL DVD-5910
DVD AUDIO-VIDEO / SUPER AUDIO PLAYER

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.

TOKYO JAPAN

X0223-1V.01 DE/CDM 0412
DVD-5910/DVD-A1XV

SAFETY PRECAUTIONS

LEAKAGE CURRENT CHECK

LASER RADIATION

500V

1M

(1)

(2)

(1)

(2)

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DVD-5910/DVD-A1XV

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

Front Panel side

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DVD-5910/DVD-A1XV

DISASSEMBLY
(Follow the procedure below in reverse order when reassem-
bling.)

1. Top Cover
(1) Remove 2 rear screws (s1) and 8 top screws (s2), then
detach the Top cover.
(2) Remove 2 side screws (s3) and 3 top screws (s4), then
detach the Side cover(L).
(3) Remove 2 side screws (s5) and 3 top screws (s6), then
detach the Side cover(R).

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DVD-5910/DVD-A1XV

2. Front Panel sub Ass'y
2.1. When the Disc tray can be ejected electrically.
(1) Switch on, and press [OPEN/CLOSE] button to open the
Disc tray.
(2) Detach the Loader panel ass'y (c1) by lifting.
(3) Close the Disc tray.
(4) Disconnect the wires [CX026] [CX035] from the Front
panel sub ass'y (a1).
(5) Remove 4 top screws (s1) and 4 bottom screws (s1),
then detach the Front panel sub ass'y (a1).
(6) Disconnect the FFC [CX211] from the Front panel sub
ass'y (a1).
(7) Remove 4 top screws (s2), then detach the Angle (m1).
(Note: This Angle provide on Front and Rear.)
(8) Remove both 2 top screws (s3) and (s4), then detach the
Angle (m2).
(Note: The 2 top screws of s4 provide only Japan model.)

2.2. When the Disc tray cannot be ejected electri-
cally.
(1) Insert a driver into the side hole of DVD Mechanism, and
push the Plate Gear of the DVD Mechanism, to open the
Disc Tray. (Arrow direction)
(2) The same steps described on 2-1.(2)~(8).

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DVD-5910/DVD-A1XV

3. DVD mechanism Ass'y
(1) Remove 4 top screws (s1).
(2) Disconnect the wires [CY251] [CY301] [CY171] [CX331]
[CY101] connecting the MAIN P.W.B.(GU-3618).
(3) Detach the DVD mechanism ass'y.

4. Analog Power unit / Power trans
4.1. Power trans
(1) Disconnect the wire [CX025] connecting Digital Power
unit(GU-3656-2).
(2) Disconnect the wire [CX062] connecting Analog Power
unit(GU-3656-1).
(3) Remove 2(Japan: 4) top screws (s1).
(4) Detach the Power trans (m1).
4.2. Analog Power unit
(1) Disconnect the wire [CX031] [CX032] [CX042] [CX037]
connecting Analog Power unit(GU-3656-1).
(2) Remove 4 top screws (s2), then detach the Analog Pow-
er unit (u1).
(3) Remove 4 top screws (s3), then detach the Shield plate
(m2).

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DVD-5910/DVD-A1XV

5. Digital Power unit
5.1. Digital Power unit
(1) Remove 2 side screws (s1).
(2) Disconnect the wires [CX024] [CX081] [CX101] [CX121]
[CX063] connecting Digital Power unit.
(3) Remove 4 top screws (s2), then detach the Digital Power
unit (u1).
5.2. 1.5V Power unit
(1) Remove 2 rear screws (s3).
(2) Disconnect the wire [CX059] connecting 1.5V Power unit.
(3) Remove 1 top screw (s4), then detach the 1.5V Power
unit (u2).
(4) Remove 2 rear screws (s5), then detach the AC Inlet
(m1).

6. Video Unit
(1) Disconnect the wire [CY059] connecting the I/P unit, the
FFC [CY331] and the wires [CY081] [CX031] [CX102]
connecting the Video2 unit, the FFC [CX174] connecting
the Video1 unit.
(Note: The wire [CX102] only Europe & China model.)
(2) Remove 9 screws (s1), 6 screws (s2), 2 screws (s3) and
1 screw (s4) on the rear side.
(Note: The 1 screw of s4 provide only Japan model.)
(3) Remove 2 top screws (s5), then detach the Video unit.

7
DVD-5910/DVD-A1XV

7. IEEE1394 unit / System unit
7.1. IEEE1394 unit
(1) Disconnect the FFCs [CY191] [CY173] from the
IEEE1394 unit.
(2) Remove 2 rear screws (s1) and 1 side screw (s2).
(3) Remove Locking Card Spacer, then detach the
IEEE1394 unit.
7.2. System unit
(1) Remove 2 top screws (s3), then detach the EMC Angle
(m1). (This EMC Angle provide only U.S.A. & Canada
model.)
(2) Remove 4 top screws (s4), then detach the Mecha Base
(m2).
(3) Remove 2 screws (s5), 2 screws (s6) on the rear side.
(4) Remove 6 top screws (s7), then detach the System unit.

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DVD-5910/DVD-A1XV

8. SCART unit / Audio unit
8.1. SCART unit (for Europe & China model only.)
(1) Remove 2 rear screws (s1), then detach the SCART unit
(u1).
8.2. Mix Audio unit
(1) Disconnect the FFC [CY192] and the wire [CX053]
[CY042] from the Mix Audio unit (u2).
(2) Remove 2 screws (s2), 2 screws (s3) on the rear side.
(3) Remove 4 top screws (s4), then detach the Mix Audio
unit (u2).
8.3. 5.1Ch Audio unit
(1) Remove 6 rear screws (s5).
(2) Remove 4 top screws (s6), then detach the 5.1ch Audio
unit (u3).

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DVD-5910/DVD-A1XV

9. I/P unit
9.1. Support bracket
(1) Remove 2 top screws (s1) and 3 side screws (s2), then
detach the Support bracket (m1).
9.2. I/P unit
(1) Release the I/p unit (u1) from 2 Locking card spacers.
(2) Disconnect the wire [Board to Board], then detach the I/P
unit (u1) to the arrow direction.

10. Video unit
10.1. Video 1 unit
(1) Remove 3 top screws (s1).
(2) Release the Video 1 unit (u1) from 2 Locking card spac-
ers.
(3) Disconnect the wire [Board to Board], then detach the
Video 1 unit (u1) to the arrow direction.
10.2. Support Bridge
(1) Turn over the unit.
(2) Detach 2 Locking card spacers (c2).
(3) Remove 3 top screws (s2).
(4) Remove 1 side screw (s3), then detach the Support
bridge (m1).

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DVD-5910/DVD-A1XV

Iop Measurement (Judging for Traverse Unit Replacement)
As to deciding whether optical pickup is defect or not (for replacing traverse unit), follow the steps below.
1. Judging Step
(1) Disc play abnormal
Problems such as disc no read, unsteady playback, etc.
(2) Laser drive current (Iop) check.
Check Iop according to the measuring method described in step 2 below.
If the checked value is 1.5 times or more than the initial Iop indicated on the
rear of mechanism unit, the traverse unit should be replaced.
(3) Replacing traverse unit
Referring to "How to Replace Traverse Unit", replace the traverse unit.
No mechanism adjustment is required as the whole unit is replaced with a
new one.

DVD mA
DVD mA
CD mA
CD mA
Laser current initial value on the rear of mechanism
Laser current initial value on the rear of mechanism

2. Iop Measuring Method

DVD laser drive current measuring points DVD laser drive current measuring points
[DVD] Iop silk point [DVD] Iop silk point

CD laser drive current measuring points CD laser drive current measuring points
GU-3618 P.W.B. (foil side) GU-3618 P.W.B. (foil side)
[CD] Iop silk point [CD] Iop silk point

(1) DVD laser drive current measurement