Funai B4-M500, B4-M501, B4-M502 Service Manual
SERVICE MANUAL
This Service Manual is for the
B4-M500 (ECB91ED) / B4-M501 (ECB93ED) / B4-M502 (ECB95ED) model.
For the B4-M500 (ECB91ED) / B4-M501 (ECB93ED) / B4-M502 (ECB95ED)
model, the letter (ECB91ED) / (ECB93ED) / (ECB95ED) is printed on the
Model No. Label on the back of the unit. Refer to the Model No. Label below.
ECB91ED
MODEL NO. B4-M500
Blu-ray Disc Player
Model No. Label
"ECB91ED"
ECB93ED
MODEL NO. B4-M501
Blu-ray Disc Player
Model No. Label
"ECB93ED"
ECB95ED
MODEL NO. B4-M502
Blu-ray Disc Player
Model No. Label
"ECB95ED"
BLU-RAY DISC PLAYER
B4-M500
B4-M501
B4-M502
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
Laser Beam Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
How to Initialize the BLU-RAY Disc Player . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
Home Network (DLNA) Error Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Schematic Diagrams / CBA and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17-1
Precautions on 3D video images
This unit supports Blu-ray 3D. When servicing problems related to 3D image output, the following
equipments are needed.
- 3D capable TV
- 3D compatible HDMI cable
- 3D glasses
- Blu-ray 3D disc
Manufactured under license from Dolby Laboratories.
Dolby and the double-D symbol are trademarks of Dolby Laboratories.
1-1-1 ECB91_93_95SP
SPECIFICATIONS
D Note
• The specifications and design of this product are subject to change without notice.
General
Signal system NTSC/PAL colour
Power requirements DC 12 V (DC IN terminal)
Power consumption 14 W (standby: 0.5 W)
Dimensions (width x height x depth) 180 x 218 x 158 mm
Weight 2.0 kg
Operating temperature 5°C to 40°C
Operating humidity Less than 80 % (no condensation)
Terminals
DC input 12 V, 1500 mA
USB input
TYPE A
USB 2.0
Bus power current: MAX. 500 mA
AV outp ut
(mini jack x 1)
Composite-video: 1 Vp-p (75 ƙ)
Audio L/R: 2 Vrms (1 kƙ)
Audio output (Digital)
(Optical jack x 1) Digital connector
HDMI output
(HDMI jack x 1)
Digital video: 480p/576p, 720p, 1080i, 1080p, 1080p24/
Digital audio
LAN terminal 10BASE-T / 100BASE-TX
1-2-1 ECB91ED(B4P)LBSP(1VM432602)
LASER BEAM SAFETY PRECAUTIONS
This BD player uses a pickup that emits a laser beam.
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.
Location: Top of Shield Top
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
Drive Mechanism Assembly
Laser Beam Radiation
Laser Pickup
Turntable
1-3-1 ECB91ISP
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics which are often not
evident from visual inspection, nor can the protection
they give necessarily be obtained by replacing them
with components rated for higher voltage, wattage,
etc. Parts that have special safety characteristics are
identified by a ! on schematics and in parts lists. Use
of a substitute replacement that does not have the
same safety characteristics as the recommended
replacement part might create shock, fire, and/or other
hazards. The Product’s Safety is under review
continuously and new instructions are issued
whenever appropriate. Prior to shipment from the
factory, our products are carefully inspected to confirm
with the recognized product safety and electrical
codes of the countries in which they are to be sold.
However, in order to maintain such compliance, it is
equally important to implement the following
precautions when a set is being serviced.
Precautions during Servicing
A. Parts identified by the ! symbol are critical for
safety. Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise
blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1) Insulation tape
2) PVC tubing
3) Spacers
4) Insulators for transistors
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before
soldering.
F. Observe that the wires do not contact heat
producing parts (heatsinks, oxide metal film
resistors, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been replaced, check that
5~6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repaired locations.
J. Be careful that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.
L. When reassembling, be sure to use the original
screws or specified screws listed in the parts list.
M. This unit is classified as a CLASS 1 LASER
PRODUCT.
1-3-2 ECB91ISP
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
surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
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,
antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.) is
lower than or equal to the specified value in the table
below.
Measuring Method (Power ON) :
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.
AC Line Voltage Clearance Distance (d), (d’)
230 V
≥ 2.5 mm(d)
≥ 5.0 mm(d’)
Chassis or Secondary Conductor
Primary Circuit
Fig. 1
d' d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
B
One side of
Power Cord Plug Prongs
Z
Fig. 2
Table 2: Leakage current ratings for selected areas
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Load Z Leakage Current (i)
One side of power cord plug
prongs (B) to:
230 V
2kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
RF or
Antenna terminals
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
A/V Input, Output
1-4-1 BDP_SN
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
3. The 1st pin of every male connector is indicated as
shown.
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible
Foil Connector) cable, be sure to first disconnect
the AC cord.
2. FFC (Flexible Foil Connector) cable should be
inserted parallel into the connector, not at an
angle.
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
1. Prepare the hot-air flat pack-IC desoldering
machine, then apply hot air to the Flat Pack-IC
(about 5 to 6 seconds). (Fig. S-1-1)
2. Remove the flat pack-IC with tweezers while
applying the hot air.
3. Bottom of the flat pack-IC is fixed with glue to the
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)
4. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
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.
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
around the flat pack-IC to protect other parts from
damage. (Fig. S-1-2)
To p Vie w
Out
In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Fig. S-1-1
1-4-2 BDP_SN
3. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or the solder lands under the IC when
removing it.
With Soldering Iron:
1. Using desoldering braid, remove the solder from
all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)
2. Lift each lead of the flat pack-IC upward one by
one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)
3. Bottom of the flat pack-IC is fixed with glue to the
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)
4. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Ta pe
Fig. S-1-2
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
1-4-3 BDP_SN
With Iron Wire:
1. Using desoldering braid, remove the solder from
all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)
2. Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
3. While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA
contact pads as shown in Fig. S-1-5.
4. Bottom of the flat pack-IC is fixed with glue to the
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)
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.
2. Installation
1. Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the CBA
so you can install a replacement flat pack-IC more
easily.
2. The “ I ” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the
pin 1 on the PCB when positioning for installation.
Then presolder the four corners of the flat pack-IC.
(See Fig. S-1-8.)
3. Solder all pins of the flat pack-IC. Be sure that
none of the pins have solder bridges.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8
1-4-4 BDP_SN
Instructions for Handling Semiconductors
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 MΩ) 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 MΩ) 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.
<Incorrect>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
CBA
1-5-1 ECB91_93_95DC
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the disassembly steps to gain
access to items to be serviced. When reassembling,
follow the steps in reverse order. Bend, route, and
dress the cables as they were originally.
2. Disassembly Method
Note:
(1) Identification (location) No. of parts in the figures
(2) Name of the part
(3) Figure Number for reference
(4) Identification of parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
P = Spring, L = Locking Tab, S = Screw,
CN = Connector
e.g. 2(S-2) = two Screws of (S-2),
2(L-2) = two Locking Tabs of (L-2)
(5) Refer to “Reference Notes.”
Reference Notes
1. CAUTION 1: Locking Tabs (L-1) are fragile.
Be careful not to break them.
2. The BD Main CBA & BD Mechanism Assembly
is adjusted as a unit at factory. Therefore, do
not disassemble it. When replacing the BD
Main CBA & BD Mechanism Assembly as a BD
Loader Unit.
ID/
Loc.
No.
Part
Fig.
No.
Removal
Note
[1]
Stand
Assembly
D1 4(S-1) ---
[2]
Front
Assembly
D2
4(S-2), (S-3),
CN1002,
Disc Entry Plate
Assembly
---
[3]
T-Sensor
CBA
D2
4(L-1),
Sensor PCB Holder,
Diffusion Sheet
Assembly
1
[4] Shield Top D3 4(S-4) ---
[5]
Remote
CBA
D4 (S-5), CN1001 ---
[6]
BD Loader
Unit
D4 4(S-6) ---
[7] Jack CBA D5
4(S-7), Heat Sink,
Shield Bottom,
BD Main CBA & BD
Mechanism Assembly
2
[8]
Bottom
Cover
Assembly
D6
FFC Sheet,
Bottom Panel Spring,
Bottom Plate
---
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
[2] Front Assembly
[4] Shield Top
[1] Stand Assembly
[8] Bottom Cover Assembly
[3] T-Sensor CBA
[5] Remote CBA
[7] Jack CBA
[6] BD Loader Unit
1-5-2 ECB91_93_95DC
[1] Stand Assembly
(S-1)
Fig. D1
[2] Front
Assembly
[3] T-Sensor CBA
(S-2)
(S-2)
CN1002
Disc Entry Plate
Assembly
Sensor PCB Holder
Diffusion Sheet
Assembly
(S-3)
(L-1)
Fig. D2
[4] Shield Top
(S-4)
Fig. D3
[5] Remote CBA
[6] BD Loader Unit
(S-5)
CN1001
(S-6)
Fig. D4
1-5-3 ECB91_93_95DC
[7] *Jack CBA
Shield Bottom
Heat Sink
(S-7)
*
BD Main CBA &
BD Mechanism Assembly
* See Reference Note 2.
Fig. D5
[8] Bottom Cover Assembly
Bottom Panel Spring
FFC Sheet
Bottom Plate
Fig. D6
1-5-4 ECB91_93_95DC
3. How to Eject a Disc
When a disc cannot be removed due to malfunction or when an unplayable disc is inserted, follow the
procedure below to remove the disc.
Procedure A
1. Unplug the AC adapter and then plug it in.
2. Turn the power on by pressing the [ A ] button and the disc will be ejected automatically.
Procedure B
1. Remove the Front Assembly.
2. While pressing the portion A down, slide the portion B in the direction of the arrow as shown below to eject the
disc.
A
B
Front Assembly
1-6-1 ECB91_93_95INT
HOW TO INITIALIZE THE BLU-RAY DISC PLAYER
To put the program back at the factory-default,
initialize the BD player as the following procedure.
Note:
• By initializing, network is reset to disconnected state
and “Network Service Disclaimer” appears on the
screen.
• Once the unit is initialized, the unit starts from
Initialization the next time it is turned on. The
Initialization allows quick set up of language and
network settings. To exit this mode, select “Cancel”
on the screen.
1. Turn the power on.
2. Remove the disc on the tray and close the tray.
3. Press [G] (skip up), [1], [2], and [3] buttons on
the remote control unit in this order.
Fig. a appears on the screen.
Fig. a
4. Press [ C ] button on the remote control unit.
Fig. b appears on the screen.
Fig. b
5. After initializing, the power will turn off
automatically.
"*" differ depending on the models.
F/W Name
Version
Region
Pickup
Version Display
: *******
: *.**.**
: *-*
: **
Default Setting : --
Default Setting : STOP End : STANDBY-ON
VFD/LED Check : OK
"*" differ depending on the models.
F/W Name
Version
Region
Pickup
Version Display
: *******
: *.**.**
: *-*
: **
Default Setting : SUCCESS
Default Setting : STOP End : STANDBY-ON
VFD/LED Check : OK
1-7-1 ECB91_93_95FW
FIRMWARE RENEWAL MODE
Note: The file extension of the available firmware is
“b42”.
1. Turn the power on and remove the disc on the tray
and close the tray.
2. Press [G] (skip up), [6], [5], and [4] buttons on
the remote control unit in this order.
Fig. a appears on the screen.
Fig. a Version Up Mode Screen (Example)
3. Select “Disc” or “USB” or “SD Card” and press
[OK] button on the remote control unit.
4. Insert the disc or USB Memory Stick or SD Card
for version up.
5. The BD player enters the F/W version up mode
automatically. Fig. b will appear on the screen.
Make sure to insert the proper F/W for the state of
this model.
Fig. b Programming Mode Screen (Example)
The appearance shown in (*1) of Fig. b is
described as follows:
Fig. c Version Up Mode
6. After the update, the power will turn off
automatically.
7. The power turns back on automatically. Remove
the disc or USB Memory Stick or SD Card from the
unit.
Note: All the settings will be put back to factory-
default.
The following USB Memory Stick/SD Card can be
used for software update. Make sure to use a device
that has enough space.
• USB Memory Stick (FAT16/FAT32 file system)
•
SD/Mini SD/Micro SD Card (FAT12/FAT16 file system)
•
SDHC/Mini SDHC/Micro SDHC Card (FAT32 file system)
"*" differ depending on the models.
F/W Version Mode
Please select software update mode.
Disc
USB
SD Card
F/W Name : ******* Ver.*.**.**
The available software update mode will
differ depending on the model type.
"*" differ depending on the models.
F/W Version Mode
Loading Disc...
F/W Name : ******* Ver *.**.**
(*1)
No. Appearance State
1 Loading Disc Loading the disc
2 Reading...
Sending files into the
memory.
3 See LED.
Writing new version data,
the progress will be displayed
as shown in Fig. c.
"*" differ depending on the models.
F/W Version Mode
F/W Name : ******* Ver *.**.**
1. ALL
Version : *.**.**
CHECKSUM : ****
***************.b42
See LED.
Updating
Success
Error
: LED flash alternately.
: LED remain on.
: All LED flash at the same time.
The unit will automatically turn off when update is completed,
and automatically turns back on.
1-7-2 ECB91_93_95FW
How to Verify the Firmware Version
1. Turn the power on.
2. Remove the disc on the tray and close the tray.
3. Press [G] (skip up), [1], [2], and [3] buttons on
the remote control unit in this order.
Fig. d appears on the screen.
Fig. d
4. To exit this mode, press [ ] button.
"*" differ depending on the models.
F/W Name
Version
Region
Pickup
Version Display
: *******
: *.**.**
: *-*
: **
Default Setting : --
Default Setting : STOP End : STANDBY-ON
VFD/LED Check : OK
Loading...