TOSHIBA RD-XV48DTKB Service Manual
SERVICE MANUAL
FILE NO. 810-200836GR
HDD & DVD
/
Video Cassette Recorder
RD-XV48DTKB
VCR
REC
The above model is classified as a green product (*1), as indicated by the underlined serial
number. This Service Manual describes replacement parts for the green product. When
repairing this green product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
TOSHIBA CORPORATION 2008
Published in Japan, Jun. 2008 GREEN
(*1) GREEN PRODUCT PROCUREMENT
The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling
and reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use of
certain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any
marketing of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba Corporation
recognizes environmental protection as a key management tasks, and is doing its utmost to
enhance and improve the quality and scope of its environmental activities. In line with this,
Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,
parts and materials that have low environmental impacts.
Green procurement of parts is not only confined to manufacture. The same green parts used in
manufacture must also be used as replacement parts.
(*2) LEAD-FREE SOLDER
This product is manufactured using lead-free solder as a part of a movement within the consumer
products industry at large to be environmentally responsible. Lead-free solder must be used in the
servicing and repair of this product.
WARNING
This product is manufactured using lead free solder.
DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !
The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F
(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product made
with lead-free solder may result in damage to the component and or BOARD being soldered.
Great care should be made to ensure high-quality soldering when servicing this product —
especially when soldering large components, through-hole pins, and on BOARDs — as the level
of heat required to melt lead-free solder is high.
MAIN SECTION
HDD & DVD
/ Video Cassette Recorder
RD-XV48DTKB
Main Section
I Specifications
I Preparation for Servicing
Adjustment Procedures
Schematic Diagrams
BOARD’s
Exploded Views
Parts List
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
Handling Precautions for HDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
How to Self-Check and Initialize the HDD & DVD/VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Remote Control Key Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-3
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Function Indicator Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Schematic Diagrams / BOARD’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21-1
Manufactured under license from Dolby Laboratories.
Dolby and the double-D symbol are trademarks of Dolby Laboratories.
SPECIFICATIONS
1-1-1 E3NG1SP
LASER BEAM SAFETY PRECAUTIONS
This DVD 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
Location: Inside Top of DVD mechanism.
1-2-1 TD5PLSP
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 produc-
ing 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. Be sure to confirm the FAN motor has completely
stopped when disconnecting the AC cord for termination processing is activated during inner P-on
immediately after turning Power off.
1-3-1 DVDP_ISPT
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
AC Line Voltage Clearance Distance (d), (d’)
230 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Current Test
≥ 3.2 mm(d)
≥ 6.0 mm(d’)
Chassis or Secondary Conductor
Primary Circuit
d' d
Fig. 1
Exposed Accessible Part
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.
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i)
230 V
2kΩ RES.
Connected in
parallel
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
i≤0.7mA AC Peak
i≤2mA DC
Z
One side of
B
Power Cord Plug Prongs
One side of power cord plug
AC Voltmeter
(High Impedance)
prongs (B) to:
RF or
Antenna terminals
A/V Input, Output
Fig. 2
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-3-2 DVDP_ISPT
STANDARD NOTES FOR SERVICING
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
Top View
Out
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
Pin 1
3. The 1st pin of every male connector is indicated as
shown.
Pin 1
Input
In
Bottom View
5
10
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)
Fig. S-1-1
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.
FFC Cable
Connector
BOARD
* Be careful to avoid a short circuit.
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
BOARD; 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 BOARD 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)
1-4-1 DVDN_SN
3. The flat pack-IC on the BOARD 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)
BOARD
Masking
Tape
Tweezers
Hot-air
Flat Pack-IC
Desoldering
Machine
Flat Pack-IC
Fig. S-1-2
Flat Pack-IC
Desoldering Braid
Soldering Iron
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)
Sharp
Pin
Fine Tip
Soldering Iron
3. Bottom of the flat pack-IC is fixed with glue to the
BOARD; 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 BOARD using
tweezers. (Fig. S-1-6)
Fig. S-1-4
1-4-2 DVDN_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 BOARD
contact pads as shown in Fig. S-1-5.
4. Bottom of the flat pack-IC is fixed with glue to the
BOARD; 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 BOARD 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 BOARD, handle it gently
because it may be damaged if force is applied.
Hot Air Blower
2. Installation
1. Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the
BOARD so you can install a replacement flat packIC more easily.
2. The “●” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the 1
on the BOARD 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.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
To Solid
Mounting Point
BOARD
Tweezers
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
Flat Pack-IC
or
Presolder
Flat Pack-IC
BOARD
Fig. S-1-8
Fig. S-1-6
1-4-3 DVDN_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>
<Correct>
1MΩ
BOARD
Grounding Band
1MΩ
BOARD
Conductive Sheet or
Copper Plate
1-4-4 DVDN_SN
HANDLING PRECAUTIONS FOR HDD
CAUTION:
1. SHOCK
a. Exposing HDD to shock may be the biggest
damaging factor. Please note that HDD is easily
damaged even if dropped from any height. Be sure
to place HDD on a shock-absorbent mat. Also, be
careful when transporting HDD.
b. Be careful not to subject HDD to any shock when
tightening screws for HDD replacement.
(Tighten screws manually, not with an electric
driver.)
2. MOISTURE
a. Moisture may also be a damaging factor. HDD is
semiclosed style. Sudden changes in ambient
temperature may cause moisture to form. Monitor
temperature and do not allow moisture to form on
the media surface. Also, when opening HDD
package, do so only after package is at ambient
temperature.
b. After replacing HDD, leave it to reach room
temperature (about 2 hours) for preventing dew
internal condensation, and then work necessary
task such as operation check.
4. OTHERS
a. Be careful so as not to do the followings.
Otherwise, HDD might be damaged.
- DO NOT disassemble HDD.
- When handling HDD, be sure to hold both sides
securely.
b. HDD should be stored, packed in the protective
bag, in suitable surroundings (i.e., no extreme
changes in temperature to avoid condensation).
c. When transporting HDD, be sure to use the
exclusive packing case (the replacement HDD
carton).
d. Do not stack HDDs.
e. Do not place vertically because HDD is unstable
and easy to fall.
3. STATIC ELECTRICITY
a. After removing HDD or taking replacement HDD
out of the protective bag (the replacement HDD is
packed in a protective bag), place HDD on a
conductive surface. A grounding band should be
worn when handling.
Grounding Band
Both the conductive surface and grounding band
should be grounded.
b. Make sure that HDD is placed on main unit
completely and then let go of it, when assembling.
c. Do not put HDD on a packing bag. (for preventing
electrostatic damage)
1-5-1 DHD_SN
PREPARATION FOR SERVICING
How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start
and End Sensors on this equipment. Carefully read
and follow the instructions below. Otherwise the unit
may operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Assembly and
press [VCR PLAY] button. The tape will be loaded into
the Deck Mechanism Assembly. Make sure the power
is on, connect J917 (S-INH) to GND. This will stop the
function of Tape Start Sensor, Tape End Sensor and
Reel Sensors. (If these TPs are connected before
plugging in the unit, the function of the sensors will
stay valid.) See Fig. 1.
Q503
J917 (S-INH)
Note: Because the Tape End Sensors are inactive, do
not run a tape all the way to the start or the end of the
tape to avoid tape damage.
Q504
Fig. 1
1-6-1 E3NG0PFS
CABINET DISASSEMBLY INSTRUCTIONS
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
1. Disassembly Flowchart
This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling,
follow the steps in reverse order. Bend, route, and
dress the cables as they were originally.
[1] Cover Top
[22] Front
Bracket R
[23] Bracket R
[13] BOARD
Power
Supply
[14] BOARD
Switch
[15] BOARD
Front Jack
[17] Deck
Assembly
[18] BOARD
AV
[19] BOARD
DTV Module Unit
[2] Front
Assembly
[3] Front
Bracket
[4] HDD
Assembly
[5] DVD Mechanism
& DVD/HDD MAIN
BOARD Assembly
[10] Fan Holder
[11] Motor DC
Fan
[12] Panel Rear
[16] VCR
Chassis Unit
[21] Deck
Pedestal
[6] HDD
Bracket
[7] HDD Unit
[8] HDD
Support
[9] BOARD ATA
[20] BOARD
Power
Switch
ID/
LOC.
No.
PART
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
Note
[10] Fan Holder D5 2(S-14), *CN1002 ---
REMOVAL
Motor DC
[11]
Fan
D5 2(S-15) ---
[12] Panel Rear D5 (S-16), 3(S-17) ---
(S-18), 3(S-19),
(S-20), *CN1503, FFC
D6
Guide, Chassis Earth
Plate
D6 (S-21), Desolder ---
D6 2(S-22), *CN3011 ---
5(S-23), 4(S-24),
D7
(S-25)
(S-26), (S-27),
D8
Desolder
[13]
[14]
[15]
[16]
[17]
BOARD
Power
Supply
BOARD
Switch
BOARD
Front Jack
VCR
Chassis
Unit
Deck
Assembly
[18] BOARD AV D8 ---------- ---
---
---
3
4
2. Disassembly Method
ID/
LOC.
No.
PART
Fig.
No.
[1] Cover Top D1 7(S-1) ---
Front
[2]
[3]
[4]
Assembly
Front
Bracket
HDD
Assembly
D2 (S-2), *5(L-1), *3(L-2) 1
D2
D3
DVD
Mechanism
[5]
& DVD/
HDD MAIN
D3
BOARD
Assembly
HDD
[6]
Bracket
D4 4(S-12) ---
[7] HDD Unit D4 4(S-13), HDD Rubber 2
HDD
[8]
[9]
Support
BOARD
ATA
D4 ---------- ---
D4 *CN3001, *CN3002 ---
REMOVAL
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
(S-3), 3(S-4), Front
Support
(S-5), 3(S-6), *CN652,
Connector
(S-7), 2(S-8), 2(S-9),
2(S-10), *CN101,
*CN502-D, *CN701,
*CN901, Dust Cover,
Hook, Mecha Plate
Earth
Note
---
---
2
BOARD
DTV
[19]
Module
D8 Desolder ---
Unit
BOARD
[20]
Power
D8 Desolder ---
Switch
Deck
[21]
[22]
Pedestal
Front
Bracket R
D9 7(S-28) ---
(S-29), 2(S-30), DV
D9
Cable, DV Plate Earth
---
[23] Bracket R D9 2(S-31) ---
↓
(1)
↓
(2)
↓
(3)
↓
(4)
(5)
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
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 6(S-1) = six Screws (S-1),
5(L-1) = five Locking Tabs (L-1)
(5): Refer to “Reference Notes.”
↓
1-7-1 E3NG1DC
Reference Notes
1. Locking Tabs (L-1) and (L-2) are fragile. Be careful
not to break them.
1-1. Remove Screw (S-2).
1-2. Release five Locking Tabs (L-1).
1-3. Release three Locking Tabs (L-2) and
remove the Front Assembly.
2. Do not replace the DVD Mechanism or the DVD/
HDD MAIN BOARD Assembly separately, when
replacing the DVD Mechanism & DVD/HDD MAIN
BOARD Assembly. Order the new DVD
Mechanism & DVD/HDD MAIN BOARD Assembly.
2-1. Whenever you have replaced the HDD unit,
initialize the HDD unit. To initialize the HDD
unit, perform the following.To put the HDD &
DVD/VCR into the HDD mode, press the
[HDD] button on the remote control unit.
2-2. To put the HDD & DVD/VCR into the self-
check mode, after pressing [VARIABLE
SKIP] button, press the [3], [6], and [9]
buttons on the remote control in that order
within three seconds.
2-3. Press [ENTER] button. The HDD & DVD/
VCR is initialized and the power is turned off
automatically after two seconds.
3. When reassembling, solder wire jumpers as
shown in Fig. D8.
4. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on the BOARD AV as
shown in Fig. D8. Then, install the Deck Assembly
while aligning the hole of Cam Gear with the pin of
LD-SW, the shaft of Cam Gear with the hole of LDSW as shown in Fig. D8.
Front
Support
(S-4)
(L-2)
(S-5)
[4] HDD
Assembly
CN901
(S-4)
(L-1)
(S-2)
Mecha Plate
Earth
CN101
(S-10)
(S-4)
[3] Front Bracket
(S-3)
(L-1)
[2] Front
Assembly
(L-1)
Fig. D2
[5] DVD Mechanism &
DVD/HDD MAIN BOARD
Assembly
(S-8)
CN502-D
CN652
CN701
(S-8)
(S-9)
[1] Cover Top
(S-1)
(S-1)
(S-1)
Fig. D1
(S-1)
(S-1)
Dust Cover
(S-9)
Hook
(S-6)
Connector
(S-7)
Fig. D3
1-7-2 E3NG1DC
HDD Rubber
(S-12)
CN3001
[7] HDD Unit
[9] BOARD ATA
CN3002
HDD Rubber
(S-13)
[14] BOARD
Switch
Desolder
(S-21)
[15] BOARD Front Jack
(S-18)
(S-22)
(S-19)
CN3011
FFC Guide
Chassis
Earth Plate
(S-20)
(S-19)
[13] BOARD
Power
Supply
(S-13)
[12] Rear Panel
[8] HDD Support
[6] HDD Bracket
[11] Motor DC Fan
(S-16)
(S-17)
Fig. D4
(S-14)
(S-15)
[10] Fan Holder
(S-23)
[16] VCR
Chassis
Unit
(S-25)
CN1503
(S-23)
(S-24)
Fig. D6
(S-24)
(S-23)
(S-24)
CN1002
Fig. D7
Fig. D5
1-7-3 E3NG1DC
FE Head
[17] Deck
Assembly
Cylinder
Assembly
ACE Head
Assembly
[19]
BOARD DTV
Module Unit
Pin
Pin
SW507
LD-SW
[20] BOARD
Power Switch
(S-26)
Lead with
blue stripe
Desolder
[18] BOARD AV
(S-27)
From
ACE Head
Assembly
Printing side
[18] BOARD AV
[17] Deck Assembly
Shaft
Hole
LD-SW
From
FE Head
From
Cylinder
Assembly
Cam Gear
Hole
Pin
[18] BOARD AV
Desolder
Lead with
gray stripe
From
Capstan
Motor
Assembly
Lead with
blue stripe
Desolder
Desolder
Desolder
BOTTOM VIEW
Lead connections of Deck Assembly and BOARD AV
1-7-4 E3NG1DC
Fig. D8
(S-28)
DV PlateEarth
(S-28)
[21] Deck Pedestal
[22] Front Bracket R
[23] Bracket R
(S-31)
(S-30)
DV Cable
(S-29)
Fig. D9
3. How to Eject Manually
Note: When rotating the gear, be careful not to damage the gear.
1. Remove the Cover Top, Front Assembly, Front Bracket, DVD Mechanism & DVD/HDD MAIN BOARD
Assembly.
2. Remove the Dust Cover.
3. Rotate the gear in the direction of the arrow manually as shown below.
View for A
A
Rotate this gear in
Hook
the direction of the arrow
1-7-5 E3NG1DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
NOTE:
1.Electrical adjustments are required after replacing
circuit components and certain mechanical parts.
It is important to do these adjustments only after
all repairs and replacements have been completed. Also, do not attempt these adjustments
unless the proper equipment is available.
2.To perform these alignment / confirmation procedures, make sure that the tracking control is set in
the center position: Press either [PROGRAM 5??]
or [PROGRAM ] button on the front panel first,
then the [ O ] (VCR) button on the front panel.
CH1
CH2
Figure 1
EXT. Syncronize Trigger Point
1.0H
6.5H±1H (416 μs ± 64 μs)
0.5H
V-Sync
Test Equipment Required
1.Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div.,
F-Range: DC~AC-20MHz
2.Alignment Tape (FL6A)
Head Switching Position Adjustment
Purpose:
To determine the Head Switching position during
playback.
Symptom of Misadjustment:
May cause Head Switching noise or vertical jitter
in the picture.
Test point Adj.Point Mode Input
J184(
AV1-V-OUT1
TP504(RF-SW)
GND
Tape
FL6A Oscilloscope
)
VR501
(Switching Point)
(BOARD AV)
Measurement
Equipment
PLAY
(SP)
6.5H±1H
(416μs±64μs)
-----
Spec.
Switching Pulse
Reference Notes:
Playback the Alignment tape and adjust VR501 so that
the V-sync front edge of the CH1 video output waveform is at the 6.5H±1H (416μs±64μs) delayed position
from the rising edge of the CH2 head switching pulse
waveform.
Connections of Measurement Equipment
Oscilloscope
BOARD
AV
J184
GND
TP504
CH1 CH2
Trig. (+)
1-8-1 E3NG0EA
HOW TO SELF-CHECK AND INITIALIZE THE HDD & DVD/VCR
1. Turn on the HDD & DVD/VCR.
2. To put the HDD & DVD/VCR into the HDD mode, press [HDD] on the remote control unit.
3. To put the HDD & DVD/VCR into the self-check mode, after pressing [VARIABLE SKIP] button, press the [0],
[7], and [9] buttons on the remote control in that order within three seconds.
Fig. a appears on the screen and all LEDs light.
SELF CHECK
*1
*2
*3
DVD CONNECT STATUS :
HDD CONNECT STATUS :
HDD POWER ON HOURS :
HDD FORMAT START :
POWER OFF :
ENTER
POWER
Fig. a: Self-Check Mode Screen
Table 1: Description of Fig. a
INDICATION DESCRIPTION
DVD CONNECT STATUS (*1) Connecting Condition of DVD(F/E)
HDD CONNECT STATUS (*2) Connecting Condition of HDD
Value of HDD power on hours obtained from S.M.A.R.T. command. (If not obtainable,
HDD POWER ON HOURS (*3)
value of HDD power on hours is “0”.)
Value in parentheses is the factory setting value. (If no setting, the value is “0”.)
4. Upon the self-check completion, Fig. b appears on the screen.
SELF CHECK
*4
*5
DVD CONNECT STATUS : OK
HDD CONNECT STATUS : OK
HDD POWER ON HOURS : 70
*6
*7
HDD FORMAT START :
POWER OFF :
ENTER
POWER
Fig. b: Screen of Finishing Self-Check Mode
1-9-1 E3NG0INT
Table 2: Indication of DVD self-check (*4)
INDICATION DESCRIPTION
OK Connection of DVD is normal.
NOT FOUND DVD drive cannot be found.
CABLE ERROR
FFC cable (connecting to CN652) between the DVD drive and the DVD/HDD MAIN BOARD
is not connected correctly.
Table 3: Indication of HDD self-check (*5)
INDICATION DESCRIPTION
OK Connection of HDD is normal.
NOT FOUND HDD drive cannot be found.
CABLE ERROR FFC cable between the BOARD ATA and the HDD drive is not connected correctly.
Table 4: Available button in self-check mode
BUTTON DESCRIPTION
ENTER (*6) Initialize (only when the self-check mode is complete)
ON / STANDBY (*7) Turn the power off
OTHER Not available
5. When the self-check mode is complete, press [ ] button to turn the power off.
When initializing the HDD & DVD/VCR, press [ENTER] button.After two seconds, the power is turned off
automatically.
NOTE: When initializing, “Current Clock” and “HDD Contents” are initialized.
1-9-2 E3NG0INT
HOW TO INITIALIZE THE HDD & DVD/VCR
To put the program back at the factory-default, initialize the DVD recorder & VCR as the following procedure.
< HDD/DVD Section >
1. Turn on the HDD & DVD/VCR.
2. To put the HDD & DVD/VCR into the HDD mode, press [HDD] on the remote control unit.
3. To put the HDD & DVD/VCR into the Version display mode, press [VARIABLE SKIP], [1], [2], and [3] buttons
on the remote control unit in that order within three seconds.
Fig. a appears on the screen.
*1: "
*2: Firmware Version differs depending on the
models, and this indication is one example.
Fig. a Version Display Mode Screen
" differs depending on the models.
*******
F/W VERSION DISP
MODEL NAME :
DVB-T VERSION :
FE VERSION :
BE VERSION :
TT VERSION :
DV UNIQUE ID :
LD ADJUSTMENT :
DISC ADJUSTMENT :
DEFAULT SETTING : ENTER
EXIT : RETURN
*******
*.**
***_***_***
************
*********
******** ********
OK
OK
4. Press [ENTER] button, then the HDD & DVD/VCR starts initializing. When the initializing is completed, the
HDD & DVD/VCR exits the Version display mode and turns off the power automatically.
* To move into the Normal mode from the Version display mode, press [RETURN] button on the remote
control unit instead of [ENTER] button.
* When [ ] button is pressed before [ENTER] button is pressed, the HDD & DVD/VCR exits the Version
display mode, then the power turns off.
NOTE: When initializing, “Current Clock”, “Setup Changing Item”, “Channel Setup”, “Area Setup” and “Program”
are initialized.
1-9-3 E3NG0INT
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc in the tray.
2. To switch the HDD & DVD into the HDD mode,
press [HDD] on the remote control unit.
3. To put the HDD & DVD into version up mode,
press [VARIABLE SKIP] and [6], [5], [4] buttons on
the remote control unit in that order within 3
seconds. The tray will open automatically.
Fig. a appears on the TV screen and Fig. b
appears on the VFD.
*FIRMWARE version will differ depending on the
model. Fig. a is an example.
Firm Update Mode ver.TD5******X2G
Please insert a disc.
Fig. a: Update Mode TV Screen
5. Select the firmware version pressing arrow
buttons, then press [ENTER].
Fig. d appears on the screen and Fig. e appears
on the VFD. The DVD recorder starts updating.
About VFD indication of Fig. e:
1) When Fig. d is displayed on the screen, “F-UP”
is displayed on the VFD.
2) When “Firmware Updating... XX% Complete.”
is displayed on the screen, “10210” is displayed
on the VFD.
* Firmware Version differs depending on the
models, and this indication is one example.
Firm Update Mode ver.TD5******X2G
Selected
F/W version
is displayed.
TD5T10210X2G
File Loading...
(*1)
Fig. d Programming Mode Screen
Fig. b: VFD Display in Update Mode
4. Load the disc for version up.
Fig. c appears on the screen. The file on the top is
highlighted as the default.
When there is only one file to exist, Step 5 will
start automatically.
* Firmware Version differs depending on the
models, and this indication is one example.
Firm Update Mode ver.TD5******X2G
Disc name
is displayed.
VOL_200703250934
1 TD5T10210X2G
2 TD5T10211X2G
3 TD5T10212X2G
4 TD5T10213X2G
1 / 1
Files included
in the disc are
displayed.
Fig. c: Update Disc TV Screen
Fig. e VFD in Programming Mode (Example)
The appearance shown in (*1) of Fig. d is
described as follows.
No. Appearance State
1 File Loading... Sending files into the memory
Firmware
2
Updating...
Writing new version data
XX% Complete.
Firmware
--Update Failure
Failed in updating
6. After updating is finished, the tray opens
automatically.
At this time, no button is available.
7. Pull out the AC code once, then insert it again.
1-10-1 E3NG1FW
How to Verify the Firmware Version
1. Turn the power on and remove the disc in the tray.
2. To switch the HDD & DVD into HDD mode, press
[HDD] on the remote control unit.
3. To put the HDD & DVD into version display mode,
press [VARIABLE SKIP] and [1], [2], [3] buttons on
the remote control unit in that order within 3
seconds. Fig. i appears on the TV screen.
*1: "
*2: Firmware Version differs depending on the
models, and this indication is one example.
Display Contents
" differs depending on the models.
*******
F/W VERSION DISP
MODEL NAME :
DVB-T VERSION :
FE VERSION :
BE VERSION :
TT VERSION :
DV UNIQUE ID :
LD ADJUSTMENT :
DISC ADJUSTMENT :
DEFAULT SETTING : ENTER
EXIT : RETURN
*******
*.**
***_***_***
************
*********
******** ********
OK
OK
Fig. i: Firmware version display
MODEL NAME Model Name
DVB-T
VERSION
DVB-T Module version
FE VERSION Firmware F/E version
BE VERSION Firmware B/E version
TT VERSION Firmware T/T version
DV UNIQUE ID DV Unique ID
LD
ADJUSTMENT
DISC
ADJUSTMENT
LD adjustment progress (done: OK/
not done: --)
Factory adjustment progress (done:
OK/not done: --)
4. Press [RETURN] or [ ] button to turn off.
Note: Be sure to verify the firmware version.
1-10-2 E3NG1FW
REMOTE CONTROL KEY CODE
NEC Format
10
14
18
22
26
32
35
39
42
45
49
53
Key No.
1 OPEN/CLOSE 45BC-11
2 INPUT SELECT 45BC-0F
2
OPEN/
INPUT
CLOSE HDMI
SELECT
1
.@/:
ABC DEF
5
6
GHI JKL MNO
9
PQRS TUV WXYZ
PROG.
TIMER
PROG.
13
SETUP
17
TEXT
SPACE
VARIABLE
REPLAY
CLEAR INFO
VARIABLE
SKIP
GUIDE
21
TOP MENU
DISC MENU
25
28
DISPLAY
ENTER
/OK
RETURN
/BACK
31
SEARCH
34
REV
PLAY
FWD
38
SKIPSKIP STOP
41
HDD DVD
VCR
PAUSE
44
48
TIME SLIP
SUBTITLE
DUBBING
1.3x/0.8xPLAY
REC MODE
AUDIO
REC
SAT.LINK
52
3
4
7
8
12
16
20
24
27
29
33
37
40
43
47
51
55
11
15
19
23
30
36
46
50
54
SE-R0298
3 HDMI 45BC-B0
4 ON/STANDBY 45BC-12
51 45BC-01
62 45BC-02
73 45BC-03
8 PROG. UP 45BC-1E
94 45BC-04
10 5 45BC-05
11 6 45BC-06
12 PROG. DOWN 45BC-1F
13 7 45BC-07
14 8 45BC-08
15 9 45BC-09
16 TIMER PROG. 45BC-40
17 SETUP 45BC-52
18 0 45BC-00
19 CLEAR 45BC-53
20 INFO 45BC-3F
21 TEXT 45BC-23
22 VARIABLE REPLAY 45BC-55
23 VARIABLE SKIP 45BC-5B
24 GUIDE 45BC-6D
25 TOP MENU 45BC-D0
26 CURSOR UP 45BC-C0
27 DISC MENU 45BC-D1
28 CURSOR LEFT 45BC-CC
29 ENTER/OK 45BC-44
30 CURSOR RIGHT 45BC-C4
31 DISPLAY 45BC-5A
32 CURSOR DOWN 45BC-C8
33 RETURN/BACK 45BC-D2
34 RED 45BC-2A
35 GREEN 45BC-2B
36 YELLOW 45BC-2C
37 BLUE(SEARCH) 45BC-29
38 REV 45BC-98
39 PLAY 45BC-13
40 FWD 45BC-9A
41 SKIP DOWN 45BC-84
42 STOP 45BC-16
43 SKIP UP 45BC-80
44 PAUSE 45BC-17
45 VCR 45BC-1B
46 HDD 45BC-19
47 DVD 45BC-18
48 TIME SLIP 45BC-1A
49 DUBBING 45BC-56
50 REC MODE 45BC-A7
51 REC 45BC-15
52 SUBTITLE 45BC-D5
53 1.3x/0.8x PLAY 45BC-AA
54 AUDIO 45BC-D3
55 SAT.LINK 45BC-1D
Name Code
1-10-3 E3NG1FW
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
1 Power Supply Section
FLOW CHART NO.1
The power cannot be turned on.
TROUBLESHOOTING
Is the fuse normal?
Ye s
Is normal state restored when once unplugged power
cord is plugged again after several seconds.
Ye s
Is the AL+5V line voltage normal?
Ye s
Check each rectifying circuit of secondary circuit and
replace P1(AV ASSEMBLY) or P3(PW/SW ASSEMBLY)
if defective.
FLOW CHART NO.2
The fuse blows out.
Check the presence that the primary component is
leaking or shorted and replace P3(PW/SW ASSEMBLY)
if defective.
After servicing, replace the fuse.
FLOW CHART NO.3
When the output voltage fluctuates.
No
No
No
See FLOW CHART No.2 <The fuse blows out.>
Check for lead or short-circuiting of primary circuit
component and replace P3(PW/SW ASSEMBLY)
if defective.
(Q1001, Q1003, T1001, D1001, D1002, D1003,
D1004, D1011, R1003)
Check the presence that the rectifying diode or circuit
is shorted in each rectifying circuit of secondary side
and replace P3(PW/SW ASSEMBLY) if defective.
Does the secondary side photo coupler circuit operate
normally?
Ye s
Check the circuit and replace P3(PW/SW ASSEMBLY)
if defective. (IC1001, D1025, D1022, D1023)
FLOW CHART NO.4
When buzz sound can be heard in the vicinity of power circuit.
Check if there is short circuit on the rectifying diode and the circuit in each rectifying circuit of secondary side, and
replace P1(AV ASSEMBLY) if defective. (D013, D014, D016, D018, D019, D1031, D1032, D1033, D1034, D1035,
D1101, D1103, IC1103, IC1104, IC1105, IC1800, Q1100, Q1102, Q1105, Q1106, Q1108, Q1114, Q1502, Q1508,
Q1511, Q1513, Q1516, Q1517, Q1520, Q1521, Q1527, Q1548, Q1550, Q1551)
FLOW CHART NO.5
-FL is not outputted.
Is the supply voltage of -24V fed to the anode of D018?
Ye s
Check Q1550, Q1552, Q1553 and their periphery, and
replace P1(AV ASSEMBLY) if defective.
No
No
Check the circuit and replace P3(PW/SW ASSEMBLY)
if defective. (IC1001, IC1101, D1102)
Check D018 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
1-11-1 E3NG1TR
FLOW CHART NO.6
AL+15V is not outputted.
Is the supply voltage 44V fed to the cathode of D013?
Ye s
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.7
TU+30V is not outputted.
Is 44V voltage supplied to emitter of Q1511?
Ye s
Is the "H" pulse (approximately 5V) inputted to
the base of Q1512?
Ye s
Check Q1511, Q1512 and their periphery, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.8
No
No
No
Check D013 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
Refer to "FLOW CHART NO.6"<AL+15V is not
outputted>.
Check the P-ON-H siganal line, and replace
P1(AV ASSEMBLY) if defective.
AL+12V is not outputted.
Is the supply voltage 12V fed to the cathode of D014?
Ye s
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.9
P-ON+9V is not outputted.
Is 12V voltage supplied to collector of Q1513?
Ye s
Is the "H" pulse (approximately 10V) inputted to
the base of Q1513?
Ye s
Check Q1513 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
No
No
No
Check D014 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
Refer to "FLOW CHART NO.8"<AL+12V is not
outputted>.
Refer to "FLOW CHART NO.7"<TU+30V is not
outputted>.
1-11-2 E3NG1TR
FLOW CHART NO.10
P-ON+5V(DECK) is not outputted.
Is 12V voltage supplied to collector of Q1516?
Ye s
Is the "H" pulse (approximately 6V) inputted to
the base of Q1516?
Ye s
Check Q1516 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
FLOW CHART NO.11
AL+5V is not outputted.
Is the supply voltage 5V fed to the cathode of D016?
Ye s
Is the "H" pulse (approximately 5V) inputted to
the base of Q1502?
Ye s
Check Q1502 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
No
No
No
No
Refer to "FLOW CHART NO.8"<AL+12V is not
outputted>.
Refer to "FLOW CHART NO.9"<P-ON+9V is not
outputted>.
Check D016 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
Refer to "FLOW CHART NO.8"<AL+12V is not
outputted>.
FLOW CHART NO.12
P-ON+5V is not outputted.
Is 5V voltage supplied to collector of Q1517?
Ye s
Is the "H" pulse (approximately 5V) inputted to
the base of Q1517?
Ye s
Check Q1517 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
FLOW CHART NO.13
ECO+5V is not outputted.
Is 5V voltage supplied to collector of Q1520?
Ye s
Is the "H" pulse (approximately 6V) inputted to
the base of Q1520?
Ye s
No
No
No
No
Refer to "FLOW CHART NO.11"<AL+5V is not
outputted>.
Refer to "FLOW CHART NO.9"<P-ON+9V is not
outputted>.
Refer to "FLOW CHART NO.11"<AL+5V is not
outputted>.
Refer to "FLOW CHART NO.14"<ECO+9V is not
outputted>.
Check Q1520 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
1-11-3 E3NG1TR
FLOW CHART NO.14
ECO+9V is not outputted.
Is 10V voltage supplied to collector of Q1521?
Ye s
Check Q1521 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
FLOW CHART NO.15
ECO+12V is not outputted.
Is 12V voltage supplied to emitter of Q1548?
Ye s
Check Q1548, Q1549 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
FLOW CHART NO.16
P-ON+5V(2) is not outputted.
Is the supply voltage 5V fed to the cathode of D016?
Ye s
No
No
No
Refer to "FLOW CHART NO.15"<ECO+12V is not
outputted>.
Refer to "FLOW CHART NO.8"<AL+12V(2) is not
outputted>.
Check D016 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
Is the "H" pulse (approximately 6V) inputted to
the base of Q1106?
Ye s
Check Q1106 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
FLOW CHART NO.17
P-ON+10V is not outputted.
Is the supply voltage 14V fed to the cathode of D1031?
Ye s
Check IC1102,Q1100,Q1101,Q1105 and their
periphery, and replace P3(PW/SW ASSEMBLY)
if defective.
No
No
Refer to "FLOW CHART NO.17"<P-ON+10V is not
outputted>.
Check D1031 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
1-11-4 E3NG1TR
FLOW CHART NO.18
P-ON+3.3V is not outputted.
Is the supply voltage 5V fed to the cathode of D1101?
Ye s
Is the "H" pulse (approximately 5V) inputted to
the base of Q1107?
Ye s
Is 3.3V voltage outputted to pin 2 of IC1104?
Ye s
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.19
SYS+5V is not outputted.
Is 5V voltage outputted to pin 26 of CL1001?
Ye s
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
No
No
No
No
Check D1101 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
Check the 1V2CONT signal line, and replace
P1(AV ASSEMBLY) if defective.
Check IC1104 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
Check IC1105 and their periohery, and replace
P3(PW/SW ASSEMBLY) if defective.
FLOW CHART NO.20
P-ON+1.8V is not outputted.
Is 2.5V voltage supplied to pin(1) of IC1800?
Ye s
Check IC1800 and their periohery, and replace
P1(AV ASSEMBLY) if defective.
FLOW CHART NO.21
The fluorescent display tube does not light up.
Is 5V voltage supplied to Pin(13,43) of IC612?
Ye s
Is approximately -24V to -28V voltage supplied to
Pin(30) of IC612?
Ye s
Is there approximately 500kHz oscillation to
Pin(5) of IC612?
Ye s
Are the filament voltage applied between Pin(1)
and Pin(24) of the fluorescent display tube?
Also negative voltage applied between these pins
and GND?
Ye s
Replace P1(AV ASSEMBLY).
No
No
No
No
No
Check D1033 and their periohery, and replace
P3(PW/SW ASSEMBLY) if defective.
Check the ECO+5V line and replace
P1(AV ASSEMBLY) if defective.
Check the -FL line and replace P1(AV ASSEMBLY)
or P3(PW/SW ASSEMBLY) if defective.
Check R618, IC612 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
Check the power circuit, D1103, D1108, R1106, C1110
and their periphery, and replace P3(PW/SW ASSEMBLY)
if defective.
1-11-5 E3NG1TR
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