Hitachi DVPF-3-A Service manual
SERVICE MANUAL
DVD OUTPUT VCR
TIMER REC
AV 3
(mono)
VIDEO IN
L
AUDIO IN R
TK No. 9307E
DV-PF3A(S)
PROGRAM
PAL
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD PLAYER & VIDEO CASSETTE RECORDER
June 2003
Digital Media Division, Tokai
CONTENTS
1 CAUTIONS FOR SAFETY IN PERFORMING
REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1-1 LASER BEAM SAFETY PRECAUTIONS . . . . . . . . 1-1
1-2 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . 1-2
1-2-1 Product Safety Notice . . . . . . . . . . . . . . . . . . . . . 1-2
1-2-2 Precautions during Servicing. . . . . . . . . . . . . . . . 1-2
1-2-3 Safety Check after Servicing. . . . . . . . . . . . . . . . 1-3
1-3 STANDARD NOTES FOR SERVICING. . . . . . . . . . 1-4
1-3-1 Circuit Board Indications . . . . . . . . . . . . . . . . . . . 1-4
1-3-2 Instructions for Connectors . . . . . . . . . . . . . . . . . 1-4
1-3-3 How to Remove/Install Flat Pack-IC . . . . . . . . . . 1-4
1-3-4 Instructions for Handling Semi-conductors . . . . . 1-6
1-4 NOTES WHEN USING SERVICE MANUAL. . . . . . 1-7
2 GENERAL INFORMATION. . . . . . . . . . . . . . . . .2-1
2-1 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 COMPARISON OF MODELS . . . . . . . . . . . . . . . . . 2-2
2-2-1 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-2-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 OPERATING CONTROLS AND FUNCTIONS . . . . 2-4
3 MAINTENANCE AND INSPECTION. . . . . . . . . .3-1
3-1 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 3-1
3-1-1 Power Supply Section. . . . . . . . . . . . . . . . . . . . . 3-1
3-1-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-1-3 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-2 FIRMWARE RENEWAL MODE. . . . . . . . . . . . . . . 3-15
3-2-1 How to Update the Firmware Version . . . . . . . . 3-15
3-2-2 How to Verify the Firmware Version . . . . . . . . . 3-15
3-3 STANDARD MAINTENANCE . . . . . . . . . . . . . . . . 3-16
3-3-1 Service Schedule of Components. . . . . . . . . . . 3-16
3-3-2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
4 DISASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4-1 CABINET DISASSEMBLY INSTRUCTIONS. . . . . . 4-1
4-1-1 Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . 4-1
4-1-2 Disassembly Method. . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 DISASSEMBLY/ASSEMBLY PROCEDURES
OF DECK MECHANISM . . . . . . . . . . . . . . . . . . . . . 4-6
4-3 ALIGNMENT PROCEDURES OF MECHANISM. . 4-13
5 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-1 PREPARATION FOR SERVICING . . . . . . . . . . . . . 5-1
5-1-1 How to Enter the Service Mode. . . . . . . . . . . . . . 5-1
5-2 FIXTURE AND TAPE FOR ADJUSTMENT. . . . . . . 5-2
5-2-1 How to Use The Fixtures And Tape. . . . . . . . . . . 5-2
5-3 ELECTRICAL ADJUSTMENT INSTRUCTIONS . . . 5-3
5-3-1 Test Equipment Required . . . . . . . . . . . . . . . . . . 5-3
5-3-2 Head Switching Position Adjustment. . . . . . . . . . 5-3
5-4 MECHANICAL ALIGNMENT PROCEDURES. . . . . 5-4
5-4-1 Service Information . . . . . . . . . . . . . . . . . . . . . . . 5-4
5-4-2 Tape Interchangeability Alignment . . . . . . . . . . . 5-5
1-A. Preliminary/Final Checking and
Alignment of Tape Path. . . . . . . . . . . . . . . . . . . . 5-6
1-B. X Value Alignment. . . . . . . . . . . . . . . . . . . . . . . . 5-6
1-C. Checking/Adjustment of Envelope Waveform. . . 5-7
1-D. Azimuth Alignment of
Audio/Control/Erase Head. . . . . . . . . . . . . . . . . . 5-7
6 EXPLODED VIEWS AND PARTS LIST . . . . . . 6-1
6-1 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6-1-1 Cabinet Section. . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6-1-2 Deck Mechanism View 1 Section . . . . . . . . . . . . .6-2
6-1-3 Deck Mechanism View 2 Section . . . . . . . . . . . . .6-2
6-1-4 Deck Mechanism View 3 Section . . . . . . . . . . . . .6-3
6-2 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . .6-4
6-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . .6-4
6-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . .6-5
SCHEMATIC, CIRCUIT BOARD AND BLOCK
DIAGRAMS
1 WIRING DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 3
2-1 Main 1/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 3
2-2 Main 2/9 & Sensor Schematic Diagrams. . . . . . . . . . 4
2-3 Main 3/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 5
2-4 Main 4/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 6
2-5 Main 5/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 7
2-6 Main 6/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 8
2-7 Main 7/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 9
2-8 Main 8/9 & DVD OPEN/CLOSE Schematic
Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-9 Main 9/9 Schematic Diagram . . . . . . . . . . . . . . . . . 11
2-10Power Supply & Junction Schematic Diagrams . . . 12
2-11 Jack Schematic Diagram. . . . . . . . . . . . . . . . . . . . . 13
2-12Function Schematic Diagram . . . . . . . . . . . . . . . . . 14
2-13AFV Schematic Diagram. . . . . . . . . . . . . . . . . . . . . 15
2-14DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . 16
2-15DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . 17
2-16DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . 19
3 WAVEFORMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 CIRCUIT BOARD DIAGRAMS . . . . . . . . . . . . . . . . . . . 21
4-1 Main CBA Top View & Sensor CBA Top View. . . . . 21
4-2 Main CBA Bottom View. . . . . . . . . . . . . . . . . . . . . . 22
4-3 Function CBA Top/Bottom View &
DVD OPEN/CLOSE CBA Top/Bottom View . . . . . . 23
4-4 Power Supply CBA Top/Bottom View &
Junction CBA Top/Bottom View . . . . . . . . . . . . . . . . .24
4-5 Jack CBA Top/Bottom View &
AFV CBA Top/Bottom View . . . . . . . . . . . . . . . . . . . .2 5
5 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5-1 Servo/System Control Block Diagram. . . . . . . . . . . 26
5-2 Video Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . 27
5-3 Audio Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . 28
5-4 Hi-Fi Audio Block Diagram . . . . . . . . . . . . . . . . . . . 29
5-5 Power Supply Block Diagram . . . . . . . . . . . . . . . . . 30
5-6 DVD System Control/Servo Block Diagram . . . . . . 31
5-7 Digital Signal Process Block Diagram. . . . . . . . . . . 32
5-8 DVD Video / Audio Block Diagram . . . . . . . . . . . . . 33
6 SYSTEM CONTROL TIMING CHARTS . . . . . . . . . . . . 34
7 IC PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . 39
8 LEAD IDENTIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . 42
D
1
CAUTIONS FOR SAFETY IN PERFORMING REPAIR
1-1 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 stri ke against your
skin.
The laser beam is emitted from the location shown in the figure. W hen checki ng the laser diode , be sure to keep
your eyes at leas t 30cm away f rom the pi ckup lens wh en the diod e is turned on. Do not l ook directl y at the las er
beam.
Caution: Use of controls and a djustments, or doing proce dures other than those s pecified herein, may r esult in
hazardous radiation exposure.
rive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
1-1
1-2 IMPORTANT SAFETY PRECAUTIONS
1-2-1 Product Safety Notice
Some electrical and mechanical parts have special
safety-related charac teristics 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 s afe ty c har ac te rist ic s ar e i den tified 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, fi re, 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 prod uct safety and electrical codes of
the countries in whic h th ey are to be sold. However, in
order to maintain such comp lianc e, it is equ ally impor tant to implement the following precautions when a set
is being serviced.
1-2-2 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 spur ious rad iation. T hese m ust also be
replaced only with specified re pla ce men ts.
Examples: RF converters, RF c ables, 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. O bs erv e t hat the wi r es do n ot co ntact h eat pr od uc -
ing parts (heatsinks, oxide metal fil m re sisto rs, fus ible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been r eplaced, ch eck 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. Crimp type wire connector
The power tr ansformer uses crimp type connectors
which connect the power cord and the primary side
of the transformer. When replacing the transformer,
follow these steps carefully and precisely to prevent
shock hazards.
Replacement procedure
1)Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3)Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to th e complete closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, discon nect the AC plug from the
AC outlet.
1-2
e)
Z
r
1-2-3 Safety Check after Ser vicing
Examine the area surrounding the repaired location for
damage or deterio ration. 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 cleara nce distanc e (d) and (d’) between sol dered terminals, and between terminals and surrounding metallic parts. (See Fig. 1-2-1)
T able 1-2-1 : Ratings for selected area
AC Line Voltage Clearance Distance (d) (d’)
Chassis or Secondary Conducto
Primary Circuit Terminals
dd'
220 V to 240 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
≥ 3 mm(d)
≥ 6 mm(d’)
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 acr oss the ter minals of l oad
Z. See Fig. 1-2-2 and the following table.
Table 1-2-2: Leakag e current ratings for selected a reas
AC Line Voltage Load Z Leakage Current (i)
220 V to 240 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
Exposed Accessible Part
One side of
B
Power Cord Plug Prongs
One side of power cord plug
Antenna terminals
A/V Input, Output
Fig. 1-2-1
AC Voltmeter
(High Impedanc
Fig. 1-2-2
prongs (B) to:
RF or
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-3
1-3 STANDARD NOTES FOR SERVICING
O
P
P
1-3-1 Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as shown.
Top View
Input
ut
2. For other ICs, pin 1 and every fifth pin are indicated
as shown.
In
in 1
3. The 1st pin of every male connector is indicated as
shown.
in 1
Bottom View
5
10
1-3-3 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. 1-3-1)
Fig. 1-3-1
(2) Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3) Bottom of the flat pack-IC is fixed wit h glue to the
CBA; when removing entire fl at pack-IC, fir st apply
soldering iron to center of the fla t pack-IC and hea t
up. Then remove (glue will be melted). (Fig. 1-3-6)
(4) Release the flat pack-IC from the CBA using twe e-
zers. (Fig. 1-3-6)
1-3-2 Instructions for Connectors
1. When you connec t o r dis con nect the F FC (Flex ib le
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
CBA
* Be careful to avoid a short circuit.
Caution:
1. 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 maskin g tape a r ound
the flat pack-IC to protect other parts from damage.
(Fig. 1-3-2)
2. The flat pack-IC on th e CB A i s 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.
Hot-air
Flat Pack-IC
Desoldering
CBA
Masking
Tape
Tweezers
Machine
Flat Pack-IC
Fig. 1-3-2
1-4
With Soldering Iron:
F
F
S
rp
or
n
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. Wh en you use solder flux
which is applied to all pins of the f lat pack-IC, you
can remove it easily. (Fig. 1-3-3)
lat Pack-IC
Desoldering Braid
(4) Bottom of the flat pack-IC is fixed wit h glue to the
CBA; when removing entire fl at pack-IC, fir st apply
soldering iron to center of the fla t pack-IC and hea t
up. Then remove (glue will be melted). (Fig. 1-3-6)
(5) Release the flat pack-IC from the CBA using twe e-
zers. (Fig. 1-3-6)
Note:
When using a sold ering iron, care must be taken
to ensure that the flat pack-IC is not being hel d by
glue. When the flat pack-IC is removed from the
CBA, handle it ge ntl y bec au se it may be damaged
if force is applied.
Soldering Iron
Hot Air Blower
Fig. 1-3-3
(2) Lift each lead of the flat pack-IC upward one by
one, using a sharp pin or wire to which sold er will
not adhere (iron wir e). When heati ng the pins, us e
a fine tip soldering iron or a hot air desoldering
machine. (Fig. 1-3-4)
Iron Wire
Soldering Iron
To Solid
Mounting Point
Sha
Fig. 1-3-5
Pin
ine Tip
oldering Iron
CBA
Fine Tip
Soldering Iro
Fig. 1-3-4
(3)Bottom of the flat pack-IC is fixed with g lue to the
CBA; when removing enti re flat pack-IC, fi rst apply
soldering iron to c en ter o f th e f lat pack-I C an d h eat
up. Then remove (glue will be melted). (Fig. 1-3-6)
(4)Release the flat pack-IC from the CBA usin g twee-
zers. (Fig. 1-3-6)
Tweezers
Flat Pack-IC
With Iron Wire:
(1)Using desoldering braid, remove the solder from all
Fig. 1-3-6
pins of the flat pack-IC. Wh en you use solder flux
which is applied to all pins of the f lat pack-IC, you
can remove it easily. (Fig. 1-3-3)
(2) Affix the wire to a workbench or solid mounting
point, as shown in Fig. 1-3-5.
(3) While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solde r
melts so as to lift the IC leads from the CBA contact
pads as shown in Fig. 1-3-5.
1-5
2. Installation
P
i
d
(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 replac ement flat pack-IC more
easily.
(2) The “I” mark on the flat pack-IC indicates pin 1.
(See Fig. 1-3-7.) Be sure this m ark matches the 1
on the PCB when position ing for installation. Then
presolder the four corners of the flat pack-IC. (S ee
Fig. 1-3-8.)
(3)Solder all pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
Example :
in 1 of the Flat Pack-IC
s indicated by a " " mark.
Fig. 1-3-7
1-3-4 Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a po tential difference ca used by electr ostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a gr oundin g band (1MΩ) that is properly grounded to re move any static electricity that may
be charged on the body.
2. Ground for Workbench
(1) Be sure to place a conductive sheet or copper plate
with proper groundin g (1MΩ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will no t escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.
< Incorrect >
CBA
Presolder
Flat Pack-IC
Fig. 1-3-8
CBA
< Correct >
Grounding Ban
1MΩ
CBA
1MΩ
Conductive Sheet or
Copper Plate
1-6
1-4 NOTES WHEN USING SERVICE MANUAL
(
l
[
[
[
The following shows the contents to be noted when using service manual:
Standard Notes
WARNING
Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot nece ssar ily b e ob tai ned by us ing repl ac ement components rated for higher voltage, wattage,
etc. Replacement parts that have th ese spe cial safety
characteristics are identified in this manual and its
supplements; electrical comp onents having such features are identified by the mark " ! " in the schematic
diagram and the parts list. Before replacing any of
these components, read the parts list in this manual
carefully. The use of substitute replacement parts that
do not have the same s afety character istics as specified in the parts list may create shock, fire, or other
hazards.
Capacitor Temperature Markings
Mark
(B)
Capacity
change rate
±10%
(F) +30 - 80% 20°C -25~+85°C
(SR)
±15%
(Z) +30 - 80% 20°C -10~+70°C
Standard
Temperature
temperature
20°C -25~+85°C
20°C -25~+85°C
range
Notes:
1. Do not use th e part numb er shown o n these drawings for ordering. The correct part number is shown
in the parts list, and may be slightly different or
amended since these drawings were prepared.
2. All voltages are DC voltages unless otherwise
specified.
Values in schematic diagrams
The values, dielec tric strength ( power capacitance )
and tolerances of the resistors ( excluding variable
resistors ) and capacitors are indicated in the schematic diagrams using abbreviations.
Resistors ]
Item Indication
No indication...........................
Value
Power
capacitance
K............................................k
M..........................................M
No indication............1/4W,1/6W
All capacitances other than the
above are indicated in schematic
diagrams.
Capacitors and transistor s are represented by the following symbols.
CBA Symbols
(Top View) (Bottom View)
+
Electrolytic Capacitor
Capacitors ]
Item Indication
Value
No indication...........................
P..............................................pF
No indication...........................50V
Dielectric
strength
All dielectric strengths other than
50V are indicated in schematic
F
diagrams.
Bottom View)
Transistor or Digital Transistor
E C B
(Top View)
E C B
(Top View)
E C B
(Top View)
NPN
Transistor
NPN Digital
Transistor
Schematic Diagram Symbols
Digital Transistor
E C B
(Top View)
E C B
PNP
Transistor
PNP Digita
Transistor
Coils ]
Item Indication
Value
...............................................
m.............................................mH
H
1-7
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING
T
b
ts
1
".
".
3
2
1
PAGES:
1. CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective
before you connect the AC plug to the AC power supp ly. Otherwi se it may cause some compon ents in the
power supply circuit to fail.
3. Note:
(1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts
list, and may be sl ightly different or amended since the drawings were prepared.
(2) To maintain original function and reliability of repaired units, use only original replacement parts which are
listed with their part numbers in the parts list section of the service manual.
4. Wire Connectors
(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect).
(2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).
5. Voltage indications for PLAY and REC modes on the schematics are as shown below:
< DVD Section >
5.0
he same voltage for
oth PLAY & STOP modes
5.0
(2.5)
PLAY mode
STOP mode
231
Indicates that the voltage
is not consistent here.
The same voltage for
both PLAY, REC & DVD
modes
< VCR Section >
231
5.0
5.0
(2.5)
< >
Indicates that the voltage
is not consistent here.
PLAY mode
REC mode
DVD mode
Unit: Vol
6. How to read converged lines
-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
1. "1-D3" means that line number "1" goes to area "D3
2. "1-B1" means that line number "1" goes to area "B1
7. Test Point Information
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.
AREA D3
1-B1
AREA B1
1-D3
ABCD
1-8
GENERAL INFORMATION2
2-1 SPECIFICATIONS
ITEM DESCRIPTION
TV system PAL BG/DK, SECAM BG/DK
Video head Rotating 4 heads
Recording system
Audio track
Tape VHS-type videocassette
Tape speed {SP}: 23.39 mm/s, {LP}: 11.70 mm/s
Maximum record and
playback time
Receiving channel
Video section
Reception system Up-heterodyne
RF converter RF CONVERTER
Converter output UHF 22 - 69 ch (K: 36 ch)
Timer display 24-hour system
Video output impedance 75 Ω
Video output level 1.0 V p-p
Audio output level -6 dB 1 kΩ unbalance (high impedance)
Video input level 0.5- 2.0 V p-p
Audio input level -10 dBV
Video S/N ratio 40 dB or more
Audio S/N ratio 36 dB or more
Hi-Fi audio
Disc used DVD video disc, Music CD disc
Audio frequency characteristic
DVD section
Signal/Noise (S/N) ratio CD: 70 dB (JEITA)
Dynamic range DVD (linear audio): 70 dB, CD: 70 dB (JEITA)
Total distortion ratio DVD: 0.1%, CD: 0.1%
Antenna input DIN (input) terminal
Antenna output DI N (output) terminal
Video input SCART JACK (AV 1, 2) FRONT PIN JACK
Video output SCART JACK (AV 1, 2)
Terminal
Others
Audio input SCART JACK (AV 1, 2) FRONT PIN JACK
Audio output SCART JACK (AV 1, 2) PIN JACK (REAR)
S Video output MINI DIN 4PIN JACK (75 Ω)
Optical digital audio output Optical connector
Coaxial digital audio output PIN JACK
Power supply AC 220-240 V - +/-10%, 50 Hz+/-0.5%
Power consumption 30 W (Standby: 9.0 W)
Retention at power failure 30 s
Temperat ure range for operation 5 °C - 40 °C
Dimensions 435 mm x 99 mm x 218 mm
Weight 3.8 kg
Rotating 2 head helical scan brightness signal FM method
VHS standard for methods to directly record color signal low frequency conversions
Hi-Fi audio track: 2 channel
Normal audio track: 1 channel
{SP}: 4 hours (with E-240 used)
{LP}: 8 hours (with E-240 used)
CH Indication TV Channel
02-12 E2-E12
21-69 E21-E69
74-78 X,Y,Z,Z+1,Z+2
80-99, 100 S1-S20. GAP
121-141 S21-S41
142-153 R1-R12
Frequency characteristic: 20-20,000 Hz
Dynamic range: 70 dB or more
DVD (linear audio)
20 Hz - 22 kHz (48 kHz sampling frequency)
20 Hz - 44 kHz (96 kHz sampling frequency)
Music CD
20 Hz - 20 kHz (JEITA)
2-1
2-2 COMPARISON OF MODELS
V
O
/
O
T
O
R
M
M
2-2-1 VCR Section
. ←: Same as on left
ITEM DV-PF3A(S) VT-FX695EGK
Video Format VHS ←
Y/C Separation Comb Filter ←
YNR (Luminance Noise Reduction)
IDE
Circuit
Picture Control O ←
Video/Audio Input (Rear) O 1
Video/Audio Input (Front) 1 (IN3) O
UTPU
Video/Audio Output (Rear) 1 (with adopter) O
INPUT
Power Supply 220 - 240V 110 - 240V
OSD languages (VCR)
Stereo CM Skip Feature --- ←
Auto Clock Feature --- ←
Number of Timer Programming 8 Program/year 7 Program/year
THE
Self Diagnosis Function O (4 Modes) --Back-up Time 30 s 60 s
NTSC on PAL TV O ←
Surge Absorber --- ←
Auto Power Off Feature O ←
Local Broadcast Setting O ←
Multi Search Feature O (Index, Time Search, Quick Find) O (Index, Time Search)
Search Speed
FF/REW Time (E-180 Tape)
Head Composition
ECHANIS
Head Material
5(English, Russian, Polish,
Hungarian, Czech)
SP: X5/X7 (NTSC X5)
FF: approx. 100 s, REW: approx. 100 s
Hi-Fi Audio: 2[28/28 µm]
Hi-Fi Audio: Ferrite
O ←
LP: X5/X11
DA4+Hi-Fi
SP: 2[49/49 µm]
LP: 2[25/25 µm]
SP: Ferrite
LP: Ferrite
1(English)
←
←
←
←
2-2
2-2-2 DVD Section
G
L
V
O
A
O
T
Y
F
S
. ←: Same as on left
ITEM DV-PF3A(S) DV-P388A(S)
Drive Speed 1x ←
Laser 2 ←
DVD/VCD/SVCD/CD-DA O / O / --- / O ←
CD-R/CD-RW/DVD-R (Video Format) O / O / O ←
DVD-RAM (VR Format) --- ←
MP3 O ←
ENERA
OSD languages (DVD) 2 (English, Russian) 2 (English, Chinese)
Jog Shuttle on Front --- ←
Headphone Jack / Volume ---/--- ←
PAL Disc NTSC Out --- ←
Video Out Mode PAL/PAL60 O / O ←
S-Video / Component / Composite O / --- / O O / O / O
Video D/A Converter 10bit ←
IDE
Black Level Select --- O
Picture Control --- ←
Progressive Out --- ←
Audio D/A Converter 192kHz / 24bit ←
Digital Audio Out Optical / Coaxial O / O ←
Dolby Digital 5.1 ch Decode --- ←
DTS Digital Out O ←
UDI
Virtual Surround O ←
Dynamic Range Compression (Dolby
Digital)
DVD Audio --- ←
Search Speed
Slow Speed 1/16, 1/8, 1/2 (FORWARD/REWIND) 1/16, 1/8, 1/2 (FORWARD only)
IP Search (Smooth 2x Play) O ←
2x Play with Audio --- ←
RICK PLA
Step Forward / Reverse O / --- ←
Still Picture Select (Frame/Field) Auto Only ←
Disc Navigation O --DVD Zoom x2 / x4 O / O ←
Program and Random Play of DVD --- ←
A-B Repeat O ←
Repeat O ←
Resume Play O
EATURE
Front Panel Display Dimmer --- O
Screen Saver O ←
Auto Power Off O ←
2 to 100 (FORWARD/REWIND)
(DVD: 2, 8, 50, 100/CD: 16)
(Resume is not effected after power off)
O ←
2 to 60 (FORWARD/REWIND)
(DVD: 2, 8, 30, 60/CD: 16)
O
2-3
y
1
re
).
ly
).
rt
y
h
er
It
h
is
n
R
or
or
ss
eD
is
n
D
n-
y
s
y
or
k
mode when playing CDs or MP3. Sets virtual surround.
2-3 OPERATING CONTROLS AND FUNCTIONS
FRONT PANEL
1 342
REMOTE CONTROL
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
A-B REPEAT
REPEAT
MODE
ZOOM
ANGLE
MENU
RETURN
DVD
SLOW SPEED
SKIP PROG
INDEX SEARCH TIME SEARCH
SEARCH MODE/
QUICK-FINDSURROUND
1
4
7
CLEAR/C.RESET
AUDIO
SUBTITLE
TIMER
ENTER
DISC
NAVIGATION
SYSTEM
OPEN/CLOSE
EJECT
3
2
56
9
8
0
+10
DISPLAY
TOP MENU
SETUP
VCR
REC
1. Disc loading tray
2. OPEN/CLOSE (A) Button(DVD)
Press to insert discs into or remove them from the tray.
3. CASSETTE COMPARTMENT
4. POWER Light
Lights up when the power is on.
y
5. POWER/STANDBY (
/I) Button
Press to turn the power on and off.
(As to the indication of the Operate switch, “ I ” indicates ON and “y” indicates electrical power STANDBY.)
6. PROGRAM (o/p) Buttons
In VCR mode, press to change TV programmes on the
VCR; press to adjust the tracking during normal or slow
motion playback; press to remove vertical jitter in a
Still picture.
7. PLAY ( B) Button(VCR)
Press to begin playback.
8. STOP/EJECT ( C /A ) Button (VCR)
EJECT
Press to remove the tape from the VCR.
STOP
Press to stop the tape motion.
9. AUDIO In Jacks
Connect audio cables coming from the audio out jacks
of a camcorder, another VCR, or an audio source here.
0. VIDEO In Jack
Connect a video cable coming from the video out jack
of a camcorder, another VCR, or a video source
(laser disc player, camcorder, etc.) here.
54
53
52
51
50
49
48
47
46
45
44
43
42
41
DVD OUTPUT VCR
TIMER REC
18 16
11. F.FWD ( g) Button (VCR)
Press to rapidly advance the tape, or view the pictu
rapidly in forward during playback. (Forward Search
12. REW (h ) Button (VCR)
Press to rewind the tape, or to view the picture rapid
in reverse during the playback mode (Rewind Search
13. REC ( I ) Button (VCR)
Press once to start a recording. Press repeatedly to sta
a One Touch Recording.
14. REC Light
Lights up during recording.
15. TIMER Light
This light glows when the DVD/VCR is in standb
mode for a timer recording or during a One Touc
Recording. It flashes if TIMER is pressed for a tim
recording, but there is no tape in the DVD/VCR.
flashes when all timer recordings or One Touc
Recording are finished.
16 VCR OUTPUT Light (Green)
This light appears when the VCR output mode
selected. You can only watch tapes when the gree
VCR OUTPUT light is on. To make the green VC
OUTPUT light come on, VCR on the remote control
OUTPUT on the front panel.
17. OUTPUT Button
Press to select DVD mode or VCR mode.
● You can switch the output mode either by pressing
OUTPUT on the front panel, or by pressing DVD
VCR on the remote control. However, if you pre
OUTPUT on the front panel first, you need to r
select the corresponding mode by pressing DV
or VCR on the remote control.
18. DVD OUTPUT Light (Green)
This light appears when the DVD output mode
selected. You can only watch DVDs when the gree
DVD OUTPUT Light is on. To make the green DV
OUTPUT light come on, press DVD on the remote co
trol or OUTPUT on the front panel.
19. Display, Remote Sensor Window
20. PLAY ( B) Button (DVD)
Press to begin playback.
21. STOP ( C ) Button (DVD)
Stops operation of the disc.
22. SURROUND Button
Press to activate the virtual surround.
23. POWER/STANDBY (
Press to turn the power on and off.
(As to the indication of the Operate switch,
ON and “
y
/I” shows electrical power stand-by.)
24. A-B REPEAT Button
Repeats playback of a selected section.
25. REPEAT Button
Repeats playback of the current disc, title, chapter
track.
26. MODE Button
Activates programme playback or random playbac
AV 3
(mono)
VIDEO IN
L
y
/I) Button
5
PROGRAM
AUDIO IN R
791113171921 15
6810121420
“ I ” show
2-4
n
d-
d
to
e
e
r-
h
e
at
P,
k.
d
e
d
w
ll
sD
ss
eD
g
a-
d
Press to directly select a Track (Audio CD) for playback.
2
7. ZOOM Button
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
Enlarges part of a DVD-reproduced image.
8. CLEAR/C.RESET Button
● DVD mode
Press to reset the setting.
● VCR mode
Press to reset the counter.
9. ANGLE Button
Press to change the camera angle to see the sequence
being played back from a different angle.
0. SUBTITLE Button
Press to select the desired subtitle language.
0. TIMER Button
Press to put the VCR into standby mode for a timer
recording.
1. MENU Button
● DVD mode
Press to display the menu of the Disc.
● VCR mode
Press to access the VCR menu.
2. Arrow Buttons
● DVD mode
2. p / o / B / s Buttons
Move the cursor and determines its position.
● VCR mode
2. p / o Buttons
Press to enter digits when setting programme (For
example: setting clock or timer programme). Press to
select the setting modes from the on screen menu.
B Button
When setting programme (For example: setting clock
or timer programme), press to determine your selection
and proceed to the next step you want to input. Press to
determine the setting modes from the on screen menu.
s Button
Press to cancel a setting of timer programme. Press to
correct digits when setting programme (For example:
setting clock or timer programme).
3. ENTER Button (DVD)
Press to accept a setting.
4. RETURN Button (DVD)
Returns to the previous operation.
5. DISC NAVIGATION Button (DVD)
Press to display the first scenes of each chapter of the
title being played.
SYSTEM Button
To change the VCR colour system during playback for
matching recorded system (PAL or MESECAM)
6. DVD Button
Press to select DVD mode for the remote control.
● You can switch the OUTPUT mode either by press-
ing OUTPUT on the front panel, or by pressing DVD
or VCR on the remote control. However, if you pr ess
OUTPUT on the front panel first, you need to reselect the corresponding mode by pressing DVD
or VCR on the remote control.
7. SLOW Button
During tape playback, press to view the video tape in
slow motion. Press PLAY ( B) to resume normal playback. This button does not affect DVD playback.
8. SKIP ( HG)Buttons
● DVD mode
Press to skip Chapters or Tracks.
● INDEX SEARCH Button (VCR)
Press to perform Index Search.
● TIME SEARCH Button (VCR)
Press to perform Time Search.
9. STOP ( C ) Button
● DVD mode
Press to stop the disc motion.
● VCR mode
Press to stop the tape motion.
(VCR)
40. h Button
● DVD mode
Press to view the DVD picture in fast reverse motio
or to reverse playback of an Audio CD.
● VCR mode
Press to rewind the tape, or to view the picture rapi
ly in reverse during the playback mode (Rewin
Search).
41. PAUSE/STEP (k) Button
● DVD mode
Press to pause Disc playback. Press repeatedly
advance the DVD picture step by step (or one fram
at a time).
● VCR mode
While recording, press to temporarily stop th
recording (pause). Press a second time to resume no
mal recording. You can not pause a One Touc
Recording. Or, press during tape playback to freez
the picture. Press to advance the picture one frame
a time during still mode.
42. D Button
● DVD mode
Press to fast forward the Disc. Press PAUSE/STE
then press this button to begin slow motion playbac
Press this button repeatedly to change the forwar
speed of slow motion.
● VCR mode
Press to rapidly advance the tape, or view the pictur
rapidly in forward during playback (Forwar
Search).
43. PLAY (B) Button
● DVD mode
Press to begin playback.
● VCR mode
Press to begin playback.
44. PROG
45. REC Button (VCR)
46. SPEED Button (VCR)
47. VCR Button
48. SETUP Button (DVD)
49. TOP MENU Button (DVD)
(o/p) Button (VCR)
Press to change TV channels on the DVD/VCR.
Press to adjust the tracking during normal or slo
motion playback; press to remove vertical jitter in a sti
picture.
Press once to start a recording.
Press to select the VCR’s recording speed (SP or LP)
Press to select VCR mode for the remote control.
● You can switch the OUTPUT mode either by pres
ing OUTPUT on the front panel, or by pressing DV
or VCR on the remote control. However, if you pr e
OUTPUT on the front panel first, you need to r
select the corresponding mode by pressing DV
or VCR on the remote control.
Press to enter the setup mode.
Press to bring up the Top Menu on a disc.
50. DISPLAY Button
● DVD mode
Press to access or remove the display screen durin
DVD or Audio CD playback.
● VCR mode
Press to access or remove the VCR’s On screen st
tus display.
51. AUDIO Button
● DVD mode
Press to select a desired audio language or soun
mode.
● VCR mode
Press to select a desired sound mode.
52. Number Buttons
● DVD mode
2-5
+10 Button:
5
y,
c
e
t
1
2
3
4
5
the S-Video In jack of a television.
e
y)
a
a
r
AERIAL
RF OUT
AV2 (DECODER)
DVD/VCR
AV1 (TV)
DVD
DIGITAL
AUDIO OUT
LRCOAXIAL OPTICAL
ANALOG
AUDIO OUT
S-VIDEO
OUT
VCR
1
2435678
9
When searching a TITLE, a CHAPTER, or a
TRACK, use this button to enter numbers 10 and
above. For example when entering ‘15’, press this
button first ,then ‘5’.
● VCR mode
Press to select TV channels on the VCR.
To select channels, enter channel numbers as a twodigit number for the quickest results. For example, to
select channel 6, press 0 then 6.
3. OPEN/CLOSE (A) Button (DVD)
Press to open or close the disc loading tray.
REAR VIEW
57. EJECT Button (VCR)
Press to eject the video cassette from the VCR.
54. SEARCH MODE/QUICK-FIND Button
● DVD mode
Press to access or remove the Search displa
which allows you to go directly to a specifi
Title/Chapter/Track/Time.
● VCR mode
Press to use Quick-Find mode.
Caution: Do not touch the inner pins of the jacks on th
rearpanel. Electrostatic discharge may cause permanen
damage to the DVD/VCR.
. AERIAL Jack
Connect your antenna, Cable Box, or Direct
Broadcast System.
. RF OUT Jack
Use the supplied aerial cable to connect this jack
to the ANTENNAIN Jack on your TV.
. AV2 (DECODER)
Connect 21-Pin scart cable here and to the 21-Pin
Socket
scart jack of a decoder.
. AV1 (TV)
Socket
Connect 21-Pin scart cable here and to the 21-Pin
scart jack of a TV.
If your TV has RCA type audio and video input jacks,
you may connect to your DVD/VCR’s AV1 (TV) scart
socket through the 21pin/RCA adapter (supplied).
6. ANALOG AUDIO OUT Jacks (DVD only)
Connect the supplied audio cables here and to th
Audio In jacks of a television or other audio
equipment.
7.
DIGITAL COAXIAL AUDIO OUT
Connect an optional coaxial digital audio cable
here and to the Coaxial Digital Audio In jack of
decoder or audio receiver.
8.
DIGITAL OPTICAL AUDIO OUT
Jack
Jack
(DVD onl
(DVD only)
Connect an optional optical digital audio cable
here and to the Optical Digital Audio In jack of
decoder or audio receiver.
9. AC POWER CORD
Connect to a standard AC outlet to supply powe
to the DVD/VCR.
. S-VIDEO OUT Jack (DVD only)
Connect an optional S-Video cable here and to
2-6
MAINTENANCE AND INSPECTION3
3-1 TROUBLESHOOTING
Troubleshooting is how to service for the specifying malfunction or poor parts.
Detect malfunction or poor parts and service as the following charts.
3-1-1 Power Supply Section
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
Yes
Is normal state restored when once unplugged
power cord is plugged again after several seconds.
Yes
Is the AL+5V line voltage normal?
Yes
Check each rectifying circuit of secondary circuit
and service it if defective.
FLOW CHART NO.2
The fuse blows out.
Check the presence that the primary component
is leaking or shorted and service it if defective.
After servicing, replace the fuse.
FLOW CHART NO.3
When the output voltage fluctuates.
Does the secondary side photo coupler circuit
operate normally?
Yes
Check the circuit and service it if defective.
(IC1001, D1012, D1024)
No
No
No
No
See FLOW CHART No.2 <The fuse blows out.>
Check for lead or shor-circuiting of primary
circuit component and service it if defective.
(Q1001,Q1003,T001,D1001,D1002,D1003,
D1004,D1011,C1003,C1005)
Check the presence that the rectifying diode or circuit
is shorted in each rectifying circuit of secondary side
and service it if defective.
Check the circuit and service it if defective.
(IC1001, Q1009, D017)
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.
Q1052,Q1053,Q1055)
FLOW CHART NO.5
-FL is not outputted.
Is the supply voltage of -30V fed to the anode of
D018?
Check for load circuit short-circuiting or leak, and
service it if defective.
(D013,D014,D016,D018,D019,D1008,D1016,D1030,IC1051,IC1052,Q051,Q053,Q055,Q056,Q058,
No
Check D018 and their periphery, and service it if
defective.
Yes
3-1
FLOW CHART NO.6
P-ON+5V is not outputted.
Is 5V voltage supplied to the collector of Q056?
Yes
Is the "H" pulse inputted into the base of Q056?
Yes
Replace Q056.
FLOW CHART NO.7
EV+3.3V is not outputted.
Is 5V voltage supplied to Pin(1) of IC1052?
Yes
Replace IC1004.
FLOW CHART NO.8
P-ON+12V is not outputted.
Is 12V voltage supplied to the emitter of Q1053?
Yes
Is the "L" pulse (approximately 0V) outputted to
the collector of Q1054?
Yes
Replace Q1053.
No
No
No
No
No
Check D016, D017, C017, C018, and their
periphery, and service it if defective.
Check Q056, R058, R059, R060 and their
periphery, and service it if defective.
Check D1008, C1007, C1108 and their periphery,
and service it if detective.
Check D014, C014, C1105 and their periphery,
and service it if detective.
Check Q1054 and PWRCON line, and service it if
detective.
FLOW CHART NO.9
P-ON+3.3V is not outputted. (EV+3.3V is outputted normally.)
Is the "H" pulse (approximately 5V) inputted into
the base of Q1052?
Yes
Replace Q1052.
FLOW CHART NO.10
EV 1.5V is not outputted.
Is approximately 2.35V voltage supplied to Pin(1)
of IC1051?
Yes
Replace IC1051.
No
No
See FLOW CHART NO.8. <P-ON+12V is not
outputted. >
Check D1030,C1035,C1107, and their periphery,
and service it if detective.
3-2
FLOW CHART NO.11
The fluorescent display tube does not light up.
.
Is 3.3V voltage supplied to Pin(6, 24) of IC612?
Yes
Is approximately -24V to -28V voltage supplied to
Pin(15) of IC612?
Yes
Is there approximately 500kHz oscillation to
Pin(26) of IC612?
Yes
Are the filament voltage applied between (1, 2)
and (34, 35) of the fluorescent display tube?
Also negative voltage applied between these pins
and GND?
Yes
Replace the fluorescent display tube (IC611).
No
No
No
No
Check the EV+3.3V line and service it if detective
Check the -FL (-28V) line and service it if
detective.
Check R2060, IC612 and their periphery, and
service it if detective.
Check the power circuit, D1016, D1017,
R1040, C1018 and their periphery, and
service it if detective.
3-3
3-1-2 DVD Section
FLOW CHART NO.1
The key operation is not functioning.
Are the contact point and the installation state of
the key switches (SW2020-2022) normal?
Yes
When pressing each key switches (SW2020,
SW2021, SW2022), do the voltage of each pin
of CN2014 (shown below) change to "L" (0V) from
"H" (3.3V)?
SW2020 → CN2014 1PIN
SW2021 → CN2014 3PIN
SW2022 → CN2014 4PIN
Yes
Replace DVD Main CBA.
FLOW CHART NO.2
No DVD operation is possible from the remote control unit. (
Is 5V voltage supplied to Pin(3) terminal of the
RM2001 (remote control receiver)?
Yes
Is the "L" pulse sent out from Pin(1) terminal of the
RM2001 (remote control receiver) when the remote
control unit is activated?
Yes
Is the "L" pulse signal supplied to Pin(22) of
CN1051?
Yes
Replace the DVD Main CBA.
No
No
No
No
No
Re-install the key switches (SW2020, SW2021,
SW2022) correctly or replace the poor switch.
Check the key switches (SW2020, SW2021,
SW2022) and their periphery, and service it if
detective.
Operation is possible from the unit.)
Check EV+5V line, and service it if detective.
Replace the RM2001 (remote control receiver).
Replace remote control unit if needed.
Check the line between the RM2001 (remote
control receiver) and Pin(22) of CN1051, and
service it if detective.
FLOW CHART NO.3
The disc tray cannot be opened and closed. (It can be done using the remote control unit.)
Does the voltage of Pin(1) on CN2014 become 0V
when pressing "OPEN/CLOSE" button on the unit?
Yes
Refer to "FLOW CHAR NO.4" <The disc tray
cannot be opened and closed.>
FLOW CHART NO.4
The disc tray cannot be opened and closed.
Replace the DVD Main CBA.
No improvement can be found.
Yes
Replace the DVD Mechanism.
No
No
Replace the "OPEN/CLOSE" button (SW2020).
Original DVD Main CBA is poor.
3-4
FLOW CHART NO.5
The [No Disc] indication. (In case of focus error)
Replace the DVD Main CBA.
No improvement can be found.
Yes
Replace the DVD Mechanism.
FLOW CHART NO.6
The [No Disc] indication. (In case focus servo does not function.)
Replace the DVD Main CBA.
No improvement can be found.
Yes
Replace the DVD Mechanism.
FLOW CHART NO.7
The [No Disc] indication. (When the laser beam does not light.)
Replace the DVD Main CBA.
No improvement can be found.
Yes
Replace the DVD Mechanism.
No
No
No
Original DVD Main CBA is poor.
Original DVD Main CBA is poor.
Original DVD Main CBA is poor.
FLOW CHART NO.8
Both picture and sound do not operate normally.
Replace the DVD Main CBA.
No improvement can be found.
Yes
Replace the DVD Mechanism.
No
Original DVD Main CBA is poor.
3-5
FLOW CHART NO.9
Picture does not appear normally.
Set the disc on the disc tray, and playback.
Are the video signals outputted to each pin of
CN1601 on the Main CBA?
CN1601 1PIN S-Y
CN1601 9PIN S-C
CN1601 3PIN R
CN1601 7PIN G
CN1601 5PIN B
Yes
Are the video signals shown above inputted into
each pin of IC1402?
IC1402 6PIN S-Y
IC1402 2PIN S-C
IC1402 14PIN R
IC1402 16PIN G
IC1402 12PIN B
Yes
Are the video signals outputted to each pin
of IC1402?
IC1402 31PIN CVBS
IC1402 28PIN S-Y
IC1402 33PIN S-C
IC1402 22PIN R
IC1402 19PIN G
IC1402 25PIN B
Yes
Are the video signals outputted to the specific
output terminal?
Are the luminance signals outputted to the
S-OUT terminal (JK1401)?
Are the chroma signals outputted to the
S-OUT terminal (JK1401)?
Are the RGB video signals outputted to the
Scart jack (JK101)?
Are the composite video signals outputted to
Pin(19) of Scart jack (JK101)?
Yes
Check the AV cable or Monitor and service it if
detective.
No
No
No
No
No
No
No
Replace the DVD Main CBA or the DVD
Mechanism.
Check the line between each pin of CN1601 and
each pin of IC1402 on the Main CBA, and service
it if detective.
CN1601 1PIN → IC1402 6PIN S-Y
CN1601 9PIN → IC1402 2PIN S-C
CN1601 3PIN → IC1402 14PIN R
CN1601 7PIN → IC1402 16PIN G
CN1601 5PIN → IC1402 12PIN B
Check P-ON+5V line and service it if detective.
No
Is 5V voltage applied to the Pin(1, 34) of
IC1402?
Yes
Replace IC1402?
Check the periphery of JK1401 from
Pin (28) of IC1402 and service it if detective.
Check the periphery of JK1401 from
Pin (33) of IC1402 and service it if detective.
Check the periphery of JK101 from Pins (19, 22,
25) of IC1402 and service it if detective.
Are the composite video signals outputted to
Pin(4) of IC751?
Yes
Check the line between Pin(4) of IC751 and JK101
and service it if detective.
No
Are the "H" pulse inputted into Pins(9,10,11) of IC751?
No
Check the line between Q752 and OUTPUT SELECT,
and service it if detective.
3-6
Yes
Replace IC751.
FLOW CHART NO.10
.
.
,
Audio is not outputted.
Set the disc on the disc tray, and playback.
Are the analog audio signals outputted to each pin
of CN1601 on Main CBA?
CN1601 13PIN DVD-A(L)
CN1601 15PIN DVD-A(R)
Yes
Are the analog audio signals inputted to each pin
of IC1201.
IC1201 2PIN DVD-A(L)
IC1201 6PIN DVD-A(R)
Yes
Is the "H" level mute signals outputted to CN1601
on the Main CBA ?
CN1601 12PIN DVD-A-MUTE
CN1601 16PIN DVD-A(R)-MUTE
CN1601 14PIN DVD-A(L)-MUTE
Yes
Are the analog audio signals outputted to each pin
of IC1201?
IC1201 1PIN DVD-A(L)
IC1201 7PIN DVD-A(R)
Yes
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the L/R
OUT terminal (JK751)?
Are the audio signals outputted to Pins(1, 3)
of JK101 (Scart jack)?
Yes
Check the AV cable or Monitor and service it if
detective.
No
No
No
No
No
No
Replace the DVD Main CBA or the DVD Mechanism
Check each line between each pin of CN1601
and each pin of IC1201 on Main CBA, and service
it if detective.
CN1601 13PIN → IC1201 2PIN DVD-A(L)
CN1601 15PIN → IC1201 6PIN DVD-A(R)
Replace the DVD Main CBA or the DVD Mechanism
Replace IC1201.
Check the periphery between Pins(1,7) of IC1201
and JK751, and service it if detective.
Are the audio signals outputted to Pin(14,15) of
IC751?
Yes
Check the line between Pin(14,15) of IC751 and JK101,
and their periphery, and service it if detective.
No
Are the "L" pulse inputted into Pins(9,10,11) of IC751?
Yes
Replace IC751.
No
Check the line between Q752 and OUTPUT SELECT
and service it if detective.
3-7
3-1-3 VCR Section
FLOW CHART NO.1
The key operation is not functioning.
Are the contact point and the installation state of
the key switches normal?
Yes
Is the control voltage normally inputted into
Pins(7,8) of IC501?
Yes
Replace IC501.
No
Re-install some key switches correctly or
replace some key switches.
No
Check the key switches and their periphery, and
service it if detective.
Terminal voltage of IC501-7,8
4.30
3.60
2.90
2.39
1.98
1.61
1.27
0.92
0.51
(V)
KEY-1
IC501-7
-----
-----
CH
DOWN
CH UP
PLAY
STOP
/EJECT
-----
POWER
REC/OTR
KEY-2
IC501-8
-----
-----
----S-INH
FF
REW
-----
-----
OUTPUT
FLOW CHART NO.2
No DVD operation is possible from the remote control unit. (
Is 5V voltage supplied to the Pin(3) terminal of
No
the RM2001 (remote control receiver)?
Yes
Is the "L" pulse sent out from Pin(1) terminal of
No
the RM2001 (remote control receiver) when the
remote control unit is activated?
Yes
No
Is the "L" pulse signal supplied to the Pin(14) of
IC501?
Yes
Replace IC501.
Operation is possible from the unit.)
Check EV+5V line and service it if detective.
Replace the RM2001 (remote control receiver).
Or replace remote control unit.
Check the line between the RM2001 (remote
control receiver) and the Pin(14) of IC501, and
service it if detective.
3-8
FLOW CHART NO.3
Cassette tape can not be loaded.
When loading a cassette tape, on Pin(10) of
IC501, does the "L" pulse switch to the "H" pulse?
Yes
When loading a cassette tape, is the specified
voltage (approximately 13V) outputted to the
terminal of the Loading Motor Unit?
Yes
Replace the Loading Motor Unit.
FLOW CHART NO.4
Cassette tape is ejected right after the loading.
When loading a cassette tape, on Pin(10) of IC501,
does the "L" pulse switch to the "H" pulse?
Yes
When loading a cassette tape, on Pin(4) of IC501,
does the "L" pulse switch to the "H" pulse?
Yes
When loading a cassette tape, does the LD-SW
operate normally?
Yes
Replace IC501.
No
No
No
No
No
Check the line between the start sensor and
Pin(10) of IC501, and service it if detective.
Replace the Capstan Motor Unit.
Check the line between the start sensor and
Pin(10) of IC501, and service it if detective.
Check the line between the end sensor and
Pin(4) of IC501, and service it if detective.
Check the line between the LD-SW(SW507) and
Pin(9) of IC501, and service it if detective.
FLOW CHART NO.5
Cassette tape can not be ejected.
When pressing the eject button, does the Capstan
Motor start rotating?
Yes
While the Capstan Motor is rotating, is the Takeup
Reel rotating?
Yes
While the Takeup Reel is rotating, is the reel pulse
signal inputted to Pin(80) of IC501?
Yes
While the reel pulse signal is inputting, is "L" pulse
inputted to Pin(81) of IC501?
Yes
Is the specified voltage (approximately 13V)
outputted to the terminal of the Lading Motor Unit?
Yes
Is the Loading Motor rotating?
Yes
Check the Cassette Cam or Cassette Gear, etc,
and service it if detective.
No
No
No
No
No
No
Refer to "FLOW CHART NO.6 " <The Capstan
Motor does not rotate>.
Check the Reel Disc or Reel Drive Unit, and
service it if detective.
Check the line between the Takeup Reel sensor
and Pin(80) of IC501, and service it if detective.
Replace IC501.
Replace the Capstan Motor unit.
Replace the Loading Motor unit.
3-9
FLOW CHART NO.6
.
.
Capstan Motor does not rotate.
Is 5V voltage supplied to Pin(2) of CL502?
Yes
Is over approximately 2.6V voltage supplied to
Pin(5) of CL502?
Yes
Is 12V voltage supplied to Pins(1,11) of CL502?
Yes
Replace the Capstan Motor Unit.
FLOW CHART NO.7
Drum Motor does not rotate.
Is 5V voltage supplied to Pin(2) of CL502?
Yes
Is over approximately 2.6V voltage supplied to
Pin(8) of CL502?
Yes
Is 12V voltage supplied at Pin(1,11) of CL502?
Yes
Replace the Capstan Motor Unit or Cylinder
Assembly.
No
No
No
No
No
No
Check the P-ON+5V line and service it if detective
Check the line between Pin(5) of CL502 and
Pin(76) of IC501, and service it if detective.
Check the AL+12V line and service it if detective.
Check the P-ON+5V line and service it if detective
Check the line between Pin(8) of CL502 and
Pin(77) of IC501, and service it if detective.
Check the AL+12V line and service it if detective.
FLOW CHART NO.8
Drum Motor rotates only for a few seconds.
Is the drum PG/FG signal inputted to Pin(90) of IC501?
Yes
Is the RF-SW signal outputted to Pin(18) of IC501?
Yes
Is 12V voltage supplied Pin(1,11) of CL502?
Yes
Replace the Capstan Motor Unit or the Cylinder
Assembly.
FLOW CHART NO.9
RF-SW signal is not outputted.
Is the Drum Motor rotating?
5Vp-p
Yes
Is the drum PG/FG signal inputted to Pin(90) of IC501?
Yes
Replace IC501.
3-10
No
No
No
No
D-PG
No
D-FG
2.5Vp-p
Replace the Capstan Motor Unit or the Cylinder
Assembly.
Replace IC501.
Check the AL+12V line and service it if detective.
Refer to "FLOW CHART NO.7" <Drum Motor does
not rotate> and "FLOW CHART NO.8" <Drum
Motor rotates only for a few seconds>.
Replace the Capstan Motor Unit or the Cylinder
Assembly.
FLOW CHART NO.10
t
t
r
.
.
Video E-E does not appear.
Is the Video signal inputted to Pins(48,50,52,54) of
IC301?
Yes
Is the C-SYNC signal outputted to Pin(67) of IC301?
Yes No
Is the C-SYNC signal inputted to Pin(58) of IC501?
No
Check the line between Pin(67)
of IC301 and Pin(58) of IC501,
and service it if detective.
Yes
No
1) In the external input mode
Check the line between Pin(20) of JK101 (Scar
jack) and Pin(50) of IC301, and service it if
detective.
Check the line between Pin(20) of JK1402
(Scart jack) and Pin(52) of IC301, and service i
if detective.
Check the line between the video input
terminal (front) and Pin(54) of IC301, and
service it if detective.
2) In the U/V tuner mode
Check the line between Pin(24) of the U/V tune
and Pin(48) of IC301, and service it if detective
Replace IC301.
Is the video signal inputted into Pin(3) of IC751?
Yes
Is the video signal outputted to Pin(4) of IC751?
No
Is approximately 6.8V voltage supplied to Pin(16)
of IC751, or approximately -8V voltage supplied to
Pin(7) of IC751?
Yes
Is the "H" pulse inputted into Pin(9) of IC751?
Yes
No
Yes
No
No
Check the line between Pin(61) of IC301 and
Pin(3) of IC751, and service it if detective.
Is the video signal outputted to the emitter of Q104?
No
Check the line between Pin(4) of IC751
and Q104,
Yes
When only Line signal is not outputted...
check the line between
Pin(19) of JK101 (Scart jack), and service it if
detective.
When only RF signal is not outputted...
check the tuner (TU701), and
emitter
of Q104 and Pin(6) of the tuner, and
service it if detective.
Check the AL+12V line (R752, D751) and the
AL-30V line (R751,R753), and service it if detective
Check Q752 and the OUTPUT-SELECT line,
and service it if detective.
and service it if detective.
the emitter of
Q104 and
the line between the
Replace IC751.
3-11
FLOW CHART NO.11
?
.
Hi-Fi E-E audio does not operate normally.
Is each signal supplied to each pin of IC451 as below?
L-ch R-ch
Front input terminal
Scart jack 1 (JK101)
Scart jack 2 (JK1402)
Tuner audio signal
Pin(8) Pin(54)
Pin(6) Pin(52)
Pin(10) Pin(56)
Pin(4) Pin(50)
No
No
No
No
Check the peripheral circuit of the front input
terminal and service it if detective.
Check the peripheral circuit of the Scart jack 1
(JK101) and service it if detective.
Check the peripheral circuit of the Scart jack 2
(JK1402) and service it if detective.
Is the SIF signal outputted from Pin(22) of the tuner
Yes
Is the 5V voltage supplied to Pins(16,32,35,36,46,55) of
IC451, or the 9V voltage supplied to Pin(69) of IC451?
Yes
Is the serial data and the clock signal supplied to
Pins(37,38) of IC451?
Yes
Is the "L" pulse inputted into the Pin(53) of IC451?
Yes
Is the audio signal outputted to Pins(74,76) of
IC451?
Yes
Is the audio signal inputted into Pins(1,13) of
IC751?
Yes
Is the audio signal outputted to Pins(14,15) of
IC751?
Yes
Check the line between Pins(14,15) of IC751 and
Pins(1,3) of JK101 (Scart jack), and service it if
detective.
No
No
No
No
No
No
Yes
Check the line between Pins(4,
50) of IC451 and Pin(22) of
tuner, and service it if detective.
Check the circuit of AL+5V, P-ON+5V and
P-ON+9V, and service it if detective.
Check the line between Pins(37,38) of IC451 and
Pins(71,72) of IC501, and service it if detective.
Check the line between Pin(53) of IC451 and
Pin(82) of IC501, and service it if detective.
Replace IC451.
Check the line between Pins(74,76) of IC451 and
Pins(1,13) of IC751, and service it if detective.
Is approximately 6.8V voltage supplied to Pin(16)
of IC751, or approximately -8V voltage supplied to
Pin(7) of IC751?
Check the AL+12V line (R752, D751) and the
Yes
AL-30V line (R751,R753), and service it if detective
Replace the
tuner.
No
No
Replace IC751.
3-12
Yes
Is the "H" pulse inputted into the Pins(9,10,11) of
IC751?
No
Check Q752 and the OUTPUT SELECT line, and
service it if detective.
?
FLOW CHART NO.12
Hi-Fi audio can not be recorded normally. (E-E mode is normal.)
Is the REC FM signal outputted to Pin(26) of IC451?
Yes
Is the line between Pin(8) of CL251 and
Pin(26) of IC451 normal?
Yes
Replace the Cylinder Assembly.
FLOW CHART NO.13
Hi-Fi audio can not be playbacked normally. (Hi-Fi E-E mode is normal.)
Is the Playback Envelope signal outputted to
Pin(33) of IC451?
Yes
Replace IC451.
FLOW CHART NO.14
Hi-Fi audio can not be recorded normally in the linear audio mode. (E-E mode is normal.)
Is the audio signal inputted into Pin(13,15,17) of IC301?
Yes
Does the Bias oscillation circuit operate normally?
Yes
Is the audio signal outputted to Pin(11) of IC301?
Yes
Is the audio signal outputted to Pin(100) of IC301?
Yes
Is CL504 and the connected cable normal?
No
No
No
No
No
No
No
No
Replace IC451.
Service the line between Pin(8) of CL251 and
Pin(26) of IC451.
Is the Hi-Fi-H-SW signal inputted into to Pin(39) of IC451
Yes
Replace
IC451.
Check the line between Pin(78) of IC451 and
Pin(13,15,17) of IC301, and service it if detective.
Check the Bias oscillation circuit (
Q404,Q405,Q406)
Replace IC301.
Replace IC301.
Replace CL504 and the connected cable.
Check the Hi-Fi-H-SW line between
Pin(39) of IC451 and Pin(19) of
IC501, and service it if detective.
and service it if detective.
No
Q401,Q403,
Replace ACE head.
Yes
3-13
FLOW CHART NO.15
Hi-Fi audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.)
Is the audio signal supplied to Pin(9) of IC301?
No
Are the CL504, the connected cable and the parts
on periphery of playback amplifier normal?
Yes
Is there no dirt on the surface of ACE head?
Yes
Is the height of ACE head appropriate?
Yes
Replace the ACE head.
Yes
No
No
No
Is the audio signal outputted to Pin(11) of IC301?
NoYes
Check the line between Pin(11) of
IC301 and Pin(80) of IC451, and
service it if detective.
Service and replace poor parts.
Clean the surface of ACE head.
Readjust the height of the ACE head.
Replace
IC301.
3-14
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