Toshiba D-VR50KF, D-VR51KF Service Manual
SERVICE MANUAL
TOSHIBA CORPORATION 2007
The above models are classified as green products (*1), as indicated by the underlined serial
numbers. This Service Manual describes replacement parts for the green products. When
repairing these green product(s), use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
FILE NO. 810-200742GR
DVD Video Recorder
/Video Cassette Recorder
D-VR50KF
D-VR51KF
Published in Japan, May 2007 GREEN
SECAMPAL
VCR
REC
DUBBING
VCR / DVD
DVDVCR
PROGRAM
REC
DVD
(*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
DVD VIDEO RECORDER &
VIDEO CASSETTE RECORDER
D-VR50KF/D-VR51KF
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
Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
How to Initialize the DVD Recorder & VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Function Indicator Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Schematic Diagrams / BOARD’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Wiring Diagram < VCR Section >. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Wiring Diagram < DVD Section >. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-2
IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I BOARD’s
I Exploded Views
I Parts List
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
1-1-1 E9GA1SP
SPECIFICATIONS
General
System
DVD-Video, DVD-RW/R, DVD+RW/R, CD-DA, CD-RW/R,
Video Cassette Tape
Power requirements
220–240V
± 10%, 50Hz ± 0.5%
Power consumption
35W (standby: 5.0W)
Weight
4.3kg
Dimensions (width x height x depth)
435 x 99.5 x 260mm
Operating temperature
5ºC to 40ºC
Operating humidity
Less than 80% (no condensation)
TV format
Recording
Recording format
Video Recording (VR)format (DVD-RW only),
Video format (DVD-RW, DVD-R)
+VR format (DVD+RW, DVD+R)
Recordable discs
DVD-Rewritable, DVD-Recordable
DVD+Rewritable, DVD+Recordable
Video recording format
Sampling frequency : 13.5MHz
Compression format : MPEG
Audio recording format
Sampling frequency : 48kHz
Compression format : Dolby Digital
Tuner
Receivable channels
Input/Output
Front Panel : (AV3)
Video input
One RCA connector
Input level : 1Vp-p (75 Ω)
S-Video input
One Mini DIN 4-pin jack
Input level : Y (Iuminance) 1Vp-p (75 Ω)
C (colour) 300mVp-p (75 Ω)
Audio input
Two RCA connectors
Input level : 2Vrms (Input impedance: more than
10kΩ)
Rear Panel :
VHF/UHF antenna input/output terminal
VHF/UHF set 75 Ω
Audio input /output
Two 21-pin scart jack (AV1, AV2)
Video input /output
Two 21-pin scart jack (AV1, AV2)
Input /output level : 1Vp-p (75 Ω) each
S-Video output
One Mini DIN 4-pin jacks
Input /output level :
Y (Iuminance) 1Vp-p (75 Ω)
C (colour) 300mVp-p (75 Ω)
Component video output
Three RCA connectors
Output level : Y: 1.0Vp-p (75 Ω)
P
B /CB , P R /CR : 0.7Vp-p (75 Ω) each
Audio output
Two RCA connectors
Output level : 2Vrms (Output impedance:
Ω)
Digital audio output
One Coaxial pin jack
Output level : 500mVp-p (75 Ω)
Note
The specifications and design of this product are subject to
change without notice.
VCR Video Heads
Four heads
680
SECAM LL’, B / G , D / K , PAL B / G
"L(SECAM L)" F1 - E69
"BG(PAL B / G )" E2 - E69
1-2-1 RL4NLSP
LASER BEAM SAFETY PRECAUTIONS
This DVD 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: Inside Top of DVD mechanism.
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 DVD_SFNP
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.
1-3-2 DVD_SFNP
Fig. 1
Chassis or Secondary Conductor
Primary Circuit
d' d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
B
One side of
Power Cord Plug Prongs
Z
Fig. 2
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’)
220 to 240 V
≥ 3 mm(d)
≥ 6 mm(d’)
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:
220 to 240 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 DVDP_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
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)
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
Top View
Out
In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
BOARD
* Be careful to avoid a short circuit.
Fig. S-1-1
1-4-2 DVDP_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)
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
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)
Hot-air
Flat Pack-IC
Desoldering
Machine
BOARD
Flat Pack-IC
Tweezers
Masking
Tape
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 DVDP_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.
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.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
BOARD
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
BOARD
Flat Pack-IC
Fig. S-1-8
1-4-4 DVDP_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>
BOARD
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
BOARD
1-5-1 E9GA0PFS
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 the [ O ] (VCR) button. The tape will be loaded
into the Deck Mechanism Assembly. Make sure the
power is on, connect TP501 (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.
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
Q503
TP501
S-INH
Fig. 1
1-6-1 E9GA0DC
CABINET DISASSEMBLY INSTRUCTIONS
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.
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
*=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.”
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
[1] Cover Top D1 7(S-1) ---
[2] Panel Front D2
*5(L-1), *3(L-2),
*CN1505
1
1-1
1-2
1-3
[3]
Front
Bracket
D2 2(S-2), 2(S-3) ---
[4]
Jack
Bracket
D3 2(S-4) ---
[5]
BOARD
Front Jack
D3 Jack Plate Earth ---
[6]
DVD
Mechanism
& DVD
Main
BOARD
Assembly
D4
4(S-5), *CN101,
*CN701
---
[7] Dust Cover D4 ---------- ---
[8]
Panel Rear
Unit
D5
3(S-6A), 2(S-6B),
3(S-7), (S-8),*CN1503
---
[1] Cover Top
[2] Panel
Front
[3] Front
Bracket
[4] Jack
Bracket
[5] BOARD
Front Jack
[6] DVD
Mechanism
& DVD Main
BOARD
Assembly
[8] Panel
Rear Unit
[12] BOARD
Power Supply
[10] Motor
DC Fan
[13] BOARD
Holder
[11] Panel
Rear
[18] BOARD
Rear Jack
[9] Fan Holder
[15] Deck
Assembly
[20] Deck
Pedestal
[17] BOARD
Function
[14] VCR
Chassis Unit
[16] BOARD
Power Switch
[19] BOARD
Main (with
BOARD AFV)
[21] Front
Bracket R
[7]
Dust Cover
[9] Fan Holder D6 3(S-9) ---
[10]
Motor DC
Fan
D6 ---------- ---
[11] Panel Rear D6 ---------- ---
[12]
BOARD
Power
Supply
D7 4(S-10), *CN1504 ---
[13]
BOARD
Holder
D7 4(S-11) ---
[14]
VCR
Chassis
Unit
D8
5(S-12), (S-13A),
(S-13B), (S-13C),
3(S-14), (S-15),
(S-16), PCB Washer
---
[15]
Deck
Assembly
D9
(S-17), (S-18),
Desolder
2
3
[16]
BOARD
Power
Switch
D9 Desolder ---
[17]
BOARD
Function
D9 Desolder ---
[18]
BOARD
Rear Jack
D9 Desolder, Plate Earth ---
[19]
BOARD
Main (with
BOARD
AFV)
D9 ---------- ---
[20]
Deck
Pedestal
D10 7(S-19) ---
[21]
Front
Bracket R
D10 (S-20) ---
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
1-6-2 E9GA0DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.
1-1. Release five Locking Tabs (L-1).
1-2. Release three Locking Tabs (L-2)
1-3. Disconnect Connector (CN1505), and remove
the Panel Front.
2. When reassembling, solder wire jumpers as shown
in Fig. D9.
3. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on BOARD Main as shown
in Fig. D9. Then, install the Deck Assembly while
aligning the hole of Cam Gear with the pin of LDSW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D9.
(S-1)
(S-1)
(S-1)
[1] Cover Top
Fig. D1
(L-1)
(S-2)
(S-2)
(S-3)
(S-3)
(L-2)
(L-1)
(L-1)
[2] Panel
Front
[3] Front
Bracket
CN1505
Fig. D2
Fig. D3
(S-4)
Jack Plate Earth
[4] Jack Bracket
[5] BOARD
Front Jack
[6] DVD
Mechanism
&
DVD Main
BOARD
Assembly
Fig. D4
(S-5)
(S-5)
CN101
hook
CN701
(S-5)
[7] Dust
Cover
1-6-3 E9GA0DC
Fig. D5
(S-6A)
(S-6B)
(S-7)
(S-7)
(S-7)
CN1503
(S-8)
[8] Panel
Rear Unit
Fig. D6
(S-9)
[11] Panel Rear
[10] Motor DC Fan
[9] Fan Holder
CN1504
Fig. D7
(S-11)
(S-10)
[12] BOARD
Power Supply
[13] BOARD Holder
Fig. D8
(S-12)
(S-15)
(S-16)
(S-14)
(S-14)
(S-13C)
PCB
Washer
(S-13A)
(S-13B)
[14] VCR
Chassis
Unit
1-6-4 E9GA0DC
[19] BOARD
Main (with
BOARD AFV)
[15] Deck
Assembly
[16] BOARD
Power Switch
[17] BOARD Function
FE Head
Cylinder
Assembly
ACE Head
Assembly
Desolder
Lead with
blue stripe
[19] BOARD Main
[19] BOARD Main
SW507
LD-SW
From
FE Head
BOTTOM VIEW
Lead connections of Deck Assembly and BOARD Main
Desolder
From
Capstan
Motor
Assembly
Printing side
Desolder
From
Cylinder
Assembly
From
ACE Head
Assembly
Lead with
blue stripe
Lead with
blue stripe
Desolder
Lead with
gray stripe
(S-17)
(S-18)
Desolder
Lead
with
blue
stripe
Fig. D9
LD-SW
Pin
Hole
Hole
Shaft
Cam Gear
[15] Deck Assembly
Pin
Desolder
from bottom
[18] BOARD
Rear Jack
Plate Earth
1-6-5 E9GA0DC
Fig. D10
[20] Deck
Pedestal
[21] Front
Bracket R
(S-19)
(S-19)
(S-19)
(S-19)
(S-20)
1-6-6 E9GA0DC
3. How to Eject Manually
Note: When rotating the gear, be careful not to damage the gear.
1. Remove the Cover Top.
2. Remove the Panel Front.
3. Remove the Front Bracket.
4. Remove the DVD Mechanism & DVD Main BOARD Assembly.
5. Unhook two places and detach the Dust Cover.
6. Rotate the gear in the direction of the arrow manually as shown below until the tray descends.
7. Pull the tray out manually and remove a disc.
View for A
Rotate this gear in
the direction of the arrow
hook
Front Bracket
Panel Front
Dust Cover
A
1-7-1 E9GA0EA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
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 ]
or [PROGRAM ] button on the front panel first,
then the [ O ] (VCR) button on the front panel.
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.
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.
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
Test point Adj.Point Mode Input
J236(JK1-V-OUT)
TP504(RF-SW)
GND
VR501
(Switching Point)
(BOARD MAIN)
PLAY
(SP)
-----
Tape
Measurement
Equipment
Spec.
FL6A Oscilloscope
6.5H±1H
(416μs±64μs)
Connections of Measurement Equipment
Oscilloscope
BOARD
Main
J236
CH1 CH2
Trig. (+)
GND
TP504
Figure 1
EXT. Syncronize Trigger Point
CH1
CH2
1.0H
0.5H
V-Sync
Switching Pulse
6.5H±1H (416μs±64μs)
1-8-1 E9GA0INT
HOW TO INITIALIZE THE DVD RECORDER & VCR
To put the program back at the factory-default, initialize the DVD recorder & VCR as the following procedure.
< DVD Section >
1. Turn the DVD recorder on.
2. Confirm that no disc is loaded or that the disc tray
is open. To put the DVD recorder into the Version
display mode, press [DVD], [INSTANT SKIP], [1],
[2], and [3] buttons on the remote control in that
order.
Fig. a appears on the screen.
3. Press [ENTER] button, then the DVD recorder
starts initializing. When the initializing is
completed, the DVD recorder 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 instead of [ENTER]
button.
* When [ ] button is pressed before [ENTER]
button is pressed, the DVD recorder exits the
Version display mode, then the power turns
off.
MODEL NAME :
*******
FE VERSION :
BE VERSION :
TT VERSION :
LD ADJUSTMENT :
DISC ADJUSTMENT :
DEFAULT SETTING : ENTER
EXIT : RETURN
OK
OK
R40_015_000
W4T34280Z2B
T40014GVP
*1: "
*******
" differs depending on the models.
*2: Firmware Version differs depending on the
models, and this indication is one example.
Fig. a Version Display Mode Screen
F/W VERSION DISP
1-9-1 E9GA0FW
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray.
2. To put the DVD recorder into version up mode,
press [INSTANT SKIP], [6], [5], and [4] buttons on
the remote control unit in the order. Then the tray
will open automatically.
Fig. a appears on the screen and Fig. b appears
on the VFD.
3. 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 4 will
start automatically.
4. 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, “34280” is displayed
on the VFD.
The appearance shown in (*1) of Fig. d is
described as follows.
5. After updating is finished, the tray opens
automatically.
At this time, no button is available.
6. Pull out the AC code once, then insert it again.
Fig. a Version Up Mode Screen
* Firmware Version differs depending on the
models, and this indication is one example.
Current
F/W version
is displayed.
Firm Update Mode
Please insert a disc.
ver. W4T*****Z2B
Fig. b VFD in Version Up Mode
Fig. c Update Disc Screen
* Firmware Version differs depending on the
models, and this indication is one example.
Disc name
is displayed.
Firm Update Mode ver. W4T*****Z2B
VOL_200704130934
1 W4T34280Z2B
2 W4T34281Z2B
3 W4T34282Z2B
4 W4T34283Z2B
1 / 1
Files included
in the disc are
displayed.
No. Appearance State
1 File Loading... Sending files into the memory
2
Firmware
Updating...
XX% Complete.
Writing new version data
---
Firmware
Update Failure
Failed in updating
Fig. d Programming Mode Screen
* Firmware Version differs depending on the
models, and this indication is one example.
Selected
F/W Version
is displayed.
Firm Update Mode ver. W4T*****Z2B
W4T34280Z2B
File Loading...
(*1)
Fig. e VFD in Programming Mode (Example)
1-10-1 E9GA0TR
TROUBLESHOOTING
1 Power Supply Section
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
Is normal state restored when once unplugged
power cord is plugged again after several seconds.
Is the AL+5V line voltage normal?
Check each rectifying circuit of secondary circuit
and service it if defective.
See FLOW CHART No.2 <The fuse blows out.>
Check for lead or short-circuiting of primary
circuit component and service it if defective.
(Q1001, Q1003, Q1008, T0011, D1001, D1002,
D1003, D1004, D1011, C1005, C2014)
Ye s
Ye s
Ye s
No
No
No
FLOW CHART NO.2
The fuse blows out.
After servicing, replace the fuse.
Check the presence that the primary component
is leaking or shorted and service it if defective.
Check the presence that the rectifying diode or circuit
is shorted in each rectifying circuit of secondary side
and service it if defective.
FLOW CHART NO.3
When the output voltage fluctuates.
No
Ye s
Does the secondary side photo coupler circuit
operate normally?
Check the circuit and service it if defective.
(IC1001, D1006, D1012, D1024)
Check the circuit and service it if defective.
(IC1001, Q1004, D015, D017, D1019)
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 service it if defective. (D013, D014, D016, D018, D019, D1008, D1016, D1030, D1031, D1032, IC1504,
IC1505, Q1508, Q1510, Q1511, Q1513, Q1515, Q1516, Q1518, Q1542)
No
Ye s
FLOW CHART NO.5
-FL is not outputted.
Is the supply voltage of -30V fed to the anode of
D018?
Check D018 and their periphery, and service it if
defective.
Check for load circuit short-circuiting or leak, and
service it if defective.
1-10-2 E9GA0TR
No
Ye s
Check D1008, C1007, and their periphery, and
service it if defective.
FLOW CHART NO.10
P-ON+1.8V is not outputted.
Is 4V voltage supplied to Pin(1) of IC1504?
Replace IC1504.
No
Check D015, D016, D1032, L013, C018 and their
periphery, and service it if defective.
FLOW CHART NO.9
TIMER+5V is not outputted.
Is 5V voltage supplied to the emitter of Q1513?
Is the "L" pulse (approximately 0V) inputted to
the base of Q1516?
Is the "H" pulse (approximately 5V) inputted to
the base of Q1517?
Is 5V voltage supplied to the
Pin(37,99) of IC501.
Replace Q1516. Replace
Q1517.
Ye s
FLOW CHART NO.8
P-ON+5V (AL+5V) is not outputted. (P-ON+9V is outputted normally)
Is 5V voltage supplied to the collector of Q1518?
Replace Q1518.
No
No
Ye s
Ye s
Is the "H" pulse inputted to the base of Q1518?
Check D015, D016, D1032, L013, C018, and their
periphery, and service it if defective.
Check R1523 and their periphery,
and service it if defective.
FLOW CHART NO.7
P-ON+9V is not outputted. (P-ON+44V is outputted normally)
Is 12V voltage supplied to the collector of Q1515?
Replace Q1515.
No
Ye s
Ye s
Check C014, D014, D017, L010, C015, and their
periphery, and service it if defective.
FLOW CHART NO.6
P-ON+44V is not outputted.
Is 44V voltage supplied to the emitter of Q1516?
No
No
Is the "H" pulse (approximately 10V) inputted to
the base of Q1515?
Check D1511, R1568, R1569, R1570, and their
periphery, and service it if defective.
No
Ye s
Ye s
Replace IC501.
Ye s
Check AL+5V and
Timer+5V line, and
service it if defective.
No
No
Check D013, C013, and their periphery, and
service it if defective.
Is the "L" pulse outputted to the collector of Q1512?
Check Q1512, D1508 and their periphery, and
service it if defective.
Replace Q1513.
Ye s
No
Ye s
1-10-3 E9GA0TR
Ye s
Ye s
Ye s
Ye s
No
No
No
No
FLOW CHART NO.14
DVD-P-ON+12V is not outputted.
FLOW CHART NO.12
Replace Q1511.
No
Ye s
Is the "L" pulse outputted to the collector of
Q1514?
Check Q1514 and PWR-SW line, and service it if
defective.
FLOW CHART NO.13
DVD-P-ON+5V is not outputted. (AL+5V is outputted normally.)
Is the "H" pulse inputted to the base of Q1510?
Replace Q1510.
Check R1531, R1532 and their periphery, and
service it if defective.
Ye s
No
The fluorescent display tube does not light up.
Is 5V voltage supplied to Pin(13, 43) of IC612?
Is approximately -24V to -28V voltage supplied to
Pin(30) of IC612?
Is there approximately 500kHz oscillation to
Pin(5) of IC612?
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?
Replace the fluorescent display tube (FL601).
Check the EV+5V line and service it if defective.
Check the -FL line and service it if defective.
Check R618, IC612 and their periphery, and
service it if defective.
Check the power circuit, D1016, D1017,
R1040, R1041, C1018 and their periphery, and
service it if defective.
No
Check D1031, L1013, C1037, C1039 and their
periphery, and service it if defective.
Is 12V voltage supplied to the emitter of Q1511?
Ye s
No
Is 5V voltage supplied to Pin(1) of IC1505?
FLOW CHART NO.11
DVD-P-ON+3.3V is not outputted.
Replace IC1505.
Check D015, D016, D1032, L013, C018 and their
periphery, and service it if defective.
Ye s
1-10-4 E9GA0TR
2 DVD Section
Ye s
No
FLOW CHART NO.1
The key operation is not functioning.
Are the contact point and the installation state of
the key switches normal?
Is the control voltage normally inputted into Pin(8)
of IC501?
Check the key switches and their periphery, and
service it if defective.
No
Re-install the key switches correctly or replace
the poor switch.
FLOW CHART NO.2
No DVD operation is possible from the remote control unit. (
Operation is possible from the unit.)
Replace the RM1501 (remote control receiver).
Replace remote control unit if needed.
Check the line between the RM1501 (remote
control receiver) and Pin(14) of IC501, and
service it if defective.
Is the "L" pulse sent out from Pin(1) terminal of the
RM1501 (remote control receiver) when the remote
control unit is activated?
Is the "L" pulse signal supplied to Pin(14) of
IC501?
Replace IC501 or DVD MECHANISM & DVD
MAIN BOARD ASSEMBLY.
Ye s
Ye s
Replace IC501 or DVD MECHANISM & DVD
MAIN BOARD ASSEMBLY.
Ye s
Is 5V voltage supplied to Pin(3) terminal of the
RM1501 (remote control receiver)?
Ye s
No
Check AL+5V line, and service it if defective.
No
No
0.51
0.92
1.27
1.61
1.98
2.39
2.90
3.60
4.30
SENS-
INH
-----
REC
/OTR
OPEN/
CLOSE
DUBBING
PLAY
STOP
-----
-----
Terminal voltage of IC501-8
KEY-2
IC501-8
(V)
FLOW CHART NO.3
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
The [No Disc] indication.
Both picture and sound do not operate normally.
1-10-5 E9GA0TR
FLOW CHART NO.4
VIDEO E-E does not appear normally.
Are the video signals inputted to each pin of
IC1518?
Check the line between video input terminal and
each pin of IC1518.
IC1581 1PIN → JK1502 VIDEO-IN (AV1)
IC1581 3PIN → JK2001 VIDEO-IN2 (AV1)
IC1581 28PIN → TU1501 17PIN TUNER-VIDEO
Check the line between each pin of IC1507 and
Pin(31) of IC1518 and video input terminal.
IC1507 12PIN → IC1518 31PIN TUNER/LINE VIDEO
IC1507 15PIN → JK1204 FRONT-Y-IN
IC1507 4PIN → JK1204 FRONT-C-IN
IC1507 10PIN → JK1201 FRONT-VIDEO-IN
Are the video signals inputted to each pin of IC1507?
(S-VIDEO/Composite video out)
Continued to "A" on the FLOW CHART NO. 5.
< Picture does not appear normally. [In the
S-VIDEO/Composite video output (JK1502,
JK1506, JK2001)] >
(RGB/Component video out)
Continued to "B" on the FLOW CHART NO. 6.
< Picture does not appear normally. [In the RGB/
Component video output (JK1501, JK1502)] >
Ye s
Ye s
No
Is 12V voltage supplied to Pin(2,4) of IC1518?
No
No
IC1518 1PIN VIDEO-IN (AV1)
IC1518 3PIN VIDEO-IN2 (AV2)
IC1518 28PIN TUNER-VIDEO
IC1507 12PIN TUNER/LINE VIDEO
IC1507 15PIN FRONT-Y-IN
IC1507 4PIN FRONT-C-IN
IC1507 10PIN FRONT-VIDEO-IN
Check the line between each pin of IC1507 and
each pin of CN1502.
IC1507 19PIN → CN1502 10PIN VIDEO-Y/CVBS-IN
IC1507 21PIN → CN1502 8PIN VIDEO-C-IN
Are the video signals inputted to each pin of CN1502?
Ye s
No
CN1502 20PIN VIDEO-Y/CVBS-IN
CN1502 22PIN VIDEO-C-IN
Are the video signals outputted to each pin of IC1507?
Ye s
IC1507 19PIN VIDEO-Y/CVBS-IN
IC1507 21PIN VIDEO-C-IN
Are the video signals outputted to Pin(31) of IC1518?
Ye s
Replace IC1518.
No
Check AL+12V(1) line and
service it if defective.
Ye s
Is 5V voltage supplied to Pin(1) of IC1507?
No
Replace IC1507.
No
Check DVD-P-ON+5V line
and service it if defective.
Ye s
1-10-6 E9GA0TR
Replace DVD MECHANISM & DVD MAIN BOARD
ASSEMBLY.
Check the periphery of JK1502 from Pin (29) of
IC1518 and service it if defective.
Check the periphery of JK2001 from Pin (30) of
IC1518 and service it if defective.
Check the periphery of JK1506 from
Pin (5) of IC1515 and service it if defective.
Check the periphery of JK1506 from
Pin (7) of IC1515 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the composite video signals outputted to the
VIDEO OUT (AV1) terminal (JK1502)?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK1506)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK1506)?
No
No
No
No
Are the composite video signals outputted to the
VIDEO OUT (AV2) terminal (JK2001)?
Set the disc on the disc tray and playback.
No
"A"
FLOW CHART NO.5
Picture does not appear normally. [In the S-VIDEO/Composite video output (JK1502, JK1506, JK2001)]
Ye s
Ye s
Yes (VIDEO-OUT)
Yes (VIDEO-Y(I)-OUT,
VIDEO-C-OUT)
Ye s
Are the video signals inputted to each pin of CN1502?
No
CN1502 1PIN VIDEO-Y(I)-OUT
CN1502 9PIN VIDEO-C-OUT
Check the line between each pin of IC1515 and
each pin of CN1502, and service it if defective.
IC1515 3PIN → CN1502 1PIN VIDEO-Y(I)-OUT
IC1515 1PIN → CN1502 9PIN VIDEO-C-OUT
Are the video signals inputted to each pin of IC1515?
No
IC1515 3PIN VIDEO-Y(I)-OUT
IC1515 1PIN VIDEO-C-OUT
Are the video signals outputted to each pin of IC1515?
IC1515 5PIN VIDEO-Y(I)-OUT
IC1515 7PIN VIDEO-C-OUT
IC1515 6PIN VIDEO-OUT
Is 5V voltage supplied to Pin(4) of IC1515?
No
Replace IC1515.
No
Check DVD-P-ON+5V line
and service it if defective.
Ye s
Ye s
Are the video signals outputted to each pin of
IC1518?
IC1518 29PIN VIDEO-OUT1
IC1518 30PIN VIDEO-OUT2
Is 12V voltage supplied to Pin(2,4) of IC1518?
No
Replace IC1518.
Ye s
Check AL+12V(1) line
and service it if defective.
Ye s
Is 5V voltage supplied to Pin(16) of IC1508?
Is -5V voltage supplied to Pin(7) of IC1508?
Replace IC1508.
No
No
Check AL+5V(1) and AL-5V
line, and service it if defective.
Ye s
Check the line between Pin(3) of IC1508 and
Pin(6) of IC1515, and service it if defective.
Is the video signal inputted to Pin(3) of IC1508?
No
Check the line between Pin(5) of IC1518 and
Pin(4) of IC1508, and service it if defective.
No
Is the video signal outputted to Pin(4) of IC1508?
Ye s
Is the video signal outputted to Pin(5) of IC1518?
No
1-10-7 E9GA0TR
Replace DVD MECHANISM & DVD MAIN BOARD
ASSEMBLY.
Set the disc on the disc tray and playback.
No
"B"
FLOW CHART NO.6
Picture does not appear normally. [In the RGB/Component video output (JK1501, JK1502)]
Ye s
Ye s
Yes (Output to JK1502)
Yes (Output to
JK1501)
Ye s
Are the video signals outputted to each pin of
CN1502?
No
CN1502 7PIN VIDEO-Y(I/P)-OUT
CN1502 5PIN VIDEO-Pr/Cr-OUT
CN1502 3PIN VIDEO-Pb/Cb-OUT
Check the line between each pin of IC1510 and
each pin of CN1502, and service it if defective.
IC1510 14PIN → CN1502 7PIN VIDEO-Y(I/P)-OUT
IC1510 4PIN → CN1502 5PIN VIDEO-Pr/Cr-OUT
IC1510 15PIN → CN1502 3PIN VIDEO-Pb/Cb-OUT
IC1509 2PIN → CN1510 12PIN VIDEO-Y(I/P)-OUT
IC1509 12PIN → CN1510 5PIN VIDEO-Pr/Cr-OUT
IC1509 5PIN → CN1510 2PIN VIDEO-Pb/Cb-OUT
Are the video signals inputted to each pin of
IC1510?
No
IC1510 14PIN VIDEO-Y(I/P)-OUT
IC1510 4PIN VIDEO-Pr/Cr-OUT
IC1510 15PIN VIDEO-Pb/Cb-OUT
Are the video signals outputted to each pin of
IC1510?
(Output to JK1501)
IC1510 13PIN VIDEO-Y(I/P)-OUT
IC1510 3PIN VIDEO-Pr/Cr-OUT
IC1510 1PIN VIDEO-Pb/Cb-OUT
IC1509 2PIN VIDEO-Y(I/P)-OUT
IC1509 12PIN VIDEO-Pr/Cr-OUT
IC1509 5PIN VIDEO-Pb/Cb-OUT
IC1509 1PIN VIDEO-G-IN
IC1509 13PIN VIDEO-R-IN
IC1509 3PIN VIDEO-B-IN
(Output to JK1502)
IC1510 12PIN VIDEO-Y(I/P)-OUT
IC1510 5PIN VIDEO-Pr/Cr-OUT
IC1510 2PIN VIDEO-Pb/Cb-OUT
Is 5V voltage supplied to Pin(16) of IC1510?
Is -5V voltage supplied to Pin(7) of IC1510?
No
Replace IC1510.
NoYe s
Check the DVD-P-ON+5V and
AL-5V line, and service it if
defective.
Is 5V voltage supplied to Pin(16) of IC1509?
Is -5V voltage supplied to Pin(7) of IC1509?
No
Replace IC1509.
NoYe s
Check AL+5V(1) and AL-5V
line, and service it if defective.
Check the line between each pin of IC1509 and
each pin of IC1510, and service it if defective.
Are the video signal inputted to each pin of
IC1509?
Ye s
IC1509 15PIN VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1509 14PIN VIDEO-Pr/Cr-OUT/VIDEO-R-IN
IC1509 4PIN VIDEO-Pb/Cb-OUT/VIDEO-B-IN
Are the video signal outputted to each pin of
IC1509?
No
Check the line between Pin(1,3,13) of IC1509 and
JK2001, and service it if defective.
No
Continued to "C1" on the next page.
1-10-8 E9GA0TR
Check the periphery of JK1501 from Pin (10,11,13)
of IC1516 and service it if defective.
Check the periphery of JK1502 from Pin (10,11,15)
of IC1514 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the component video signals outputted to
COMPONENT OUT terminal (JK1501)?
No
No
Are the component video and RGB video signals
outputted to VIDEO OUT (AV1) terminal (JK1502)?
Are the video signals inputted to each pin of IC1516
and each pin of IC1514?
(Output to JK1501)
IC1516 13PIN VIDEO-Y(I/P)-OUT
IC1516 10PIN VIDEO-Pr/Cr-OUT
IC1516 11PIN VIDEO-Pb/Cb-OUT
(Output to JK1502)
IC1514 11PIN
VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1514 10PIN
VIDEO-Pr/Cr-OUT/VIDEO-R-IN
IC1514 15PIN
VIDEO-Pb/Cb-OUT/VIDEO-B-IN
Ye s
Ye s
"C1"
IC1516 3PIN → IC1510 13PIN VIDEO-Y(I/P)-OUT
IC1516 8PIN → IC1510 3PIN VIDEO-Pr/Cr-OUT
IC1516 6PIN → IC1510 1PIN VIDEO-Pb/Cb-OUT
Are the video signals inputted to each pin of IC1516
and each pin of IC1514?
(Output to JK1501)
IC1516 3PIN VIDEO-Y(I/P)-OUT
IC1516 8PIN VIDEO-Pr/Cr-OUT
IC1516 6PIN VIDEO-Pb/Cb-OUT
(Output to JK1502)
IC1514 6PIN
VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1514 8PIN
VIDEO-Pr/Cr-OUT/VIDEO-R-IN
IC1514 1PIN
VIDEO-Pb/Cb-OUT/VIDEO-B-IN
Check the line between each pin of IC1516 and
each pin of IC1510, and service it if defective.
IC1514 6PIN → IC1509 15PIN VIDEO-Y(I/P)-OUT/VIDEO-G-IN
IC1514 8PIN → IC1509 14PIN VIDEO-Pr/Cr-OUT/VIDEO-R-IN
IC1514 1PIN → IC1509 4PIN VIDEO-Pb/Cb-OUT/VIDEO-B-IN
Check the line between each pin of IC1514 and
each pin of IC1509, and service it if defective.
No
No
Ye s
Is 5V voltage supplied to Pin(4,12) of IC1516?
No
Replace IC1516.
No
Ye s
No
Check the DVD-P-ON+5V line,
and service it if defective.
Is 5V voltage supplied to Pin(4,12) of IC1514?
No
Replace IC1514.
Check the AL+5V(1) line,
and service it if defective.
1-10-9 E9GA0TR
Is SIF signal inputted to Pin(2) of IC1?
Are the audio signal outputted
to Pin(30,31) of IC1?
Replace TU1501.
Replace IC1.
Ye s
Check the line between
Pin(30,31) of IC1 and
Pin(20,24) of IC1518, and
service it if defective.
Ye s
No
No
Check the AL+12V(1) line
and service it if defective.
Replace IC1518.
Ye s N o
FLOW CHART NO.7
Audio E-E does not appear normally.
Are the audio signals inputted to each pin of
IC1518?
Check the line between audio input terminal and
each pin of IC1518, and service it if defective.
Check the line between Pin (1,12) of IC1501 and
Pin (23,27) of IC1518, and service it if defective.
Are the audio signals outputted to Pin(23,27) of
IC1518?
Ye s
Are the audio signals outputted to Pin(1,7) of
IC1506?
Ye s
Ye s
Ye s
Ye s
Ye s
No (Rear
input)
No (Tuner)
Replace IC1506.
No
No
No
Check the line between Pin (5,14) of IC1501 and
audio input terminal (JK1202, JK1203), and service
it if defective.
No
IC1518 AUDIO-IN1 (AV1)10,16PIN
IC1518 AUDIO-IN2 (AV2)8,14PIN
IC1518 TUNER-AUDIO20,24PIN
Are the audio signals inputted to each pin of
IC1501?
IC1501 TUNER-AUDIO/AUDIO-IN1,21,12PIN
IC1501 AUDIO-IN-F (FRONT)5,14PIN
IC1518
→
JK150210,16PIN
IC1518
→
JK20018,14PIN
AUDIO-IN1 (AV1)
AUDIO-IN2 (AV2)
Is 12V voltage supplied to Pin(2,4) of IC1518?
Check the AL+5V(1) and
AL-5V line, and service it if
defective.
Replace IC1501.
Ye s N o
Are the audio signals outputted to Pin(3,13) of
IC1501?
Is 5V voltage supplied to Pin(16) of IC1501?
Is -5V voltage supplied to Pin(7) of IC1501?
Continued to "C" on the next page.
Are the analog audio signals outputted to each pin
of CN1502?
CN1502 17PIN AUDIO (L)-OUT
CN1502 15PIN AUDIO (R)-OUT
No
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
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