I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded views
I Parts List
13" COLOR TV/VCR
COMBINATION
SRC2213W
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
I Deck Exploded Views
I Deck Parts List
19" COLOR TV/VCR
COMBINATION
SRC2419
IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all
Funai Equipment. The service procedures recommended by Funai and
described in this service manual are effective methods of performing service
operations. Some of these service special tools should be used when and as
recommended.
It is important to note that this service manual contains various CAUTIONS
and NOTICES which should be carefully read in order to minimize the risk of
personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand
that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Funai could not
possibly know, evaluate and advice the service trade of all conceivable ways
in which service might be done or of the possible hazardous consequences of
each way. Consequently, Funai has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by
the service method selected.
MAIN SECTION
13"/19" COLOR TV/VCR COMBINATION
SRC2213W/SRC2419
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Parts List
All items are measured across 8Ω resistor at speaker output terminal.
DescriptionConditionUnitNominalLimit
1. Audio Output Power (Max.)(R/P)W1.00.8
2. Audio S/N (W/LPF)(R/P)dB4036
3. Audio Distortion (W/LPF)(R/P)%3.05.0
4. Audio Freq. Response
(-10dB Ref. 1KHz)
200Hz (R/P)
8kHz (R/P)
dB
dB
-2.0
0
-2.0±5.0
0±6.0
Note: Nominal specifications represent the design specifications. All units should be able to approximate these.
Some will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications.
1-1-2T5505SP
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory, our products are strictly inspected for 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.
Safety Precautions for TV Circuit
1. Before returning an instrument to the custom-
er, always make a safety check of the entire instru-
ment, including, but not limited to, the following
items:
a. Be sure that no built-in protective devices are de-
fective and have been defeated during servicing.
(1) Protective shields are provided on this chassis
to protect both the technician and the customer.
Correctly replace all missing protective shields, including any removed for servicing convenience. (2)
When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all
protective devices, including but not limited to,
nonmetallic control knobs, insulating fishpapers,
adjustment and compartment covers/shields, and
isolation resistor/capacitor networks. Do not oper-
ate this instrument or permit it to be operated
without all protective devices correctly installed and functioning. Servicers who defeat
safety features or fail to perform safety checks
may be liable for any resulting damage.
b. Be sure that there are no cabinet openings through
which an adult or child might be able to insert their
fingers and contact a hazardous voltage. Such
openings include, but are not limited to, (1) spacing
between the picture tube and the cabinet mask, (2)
excessively wide cabinet ventilation slots, and (3)
an improperly fitted and/or incorrectly secured
cabinet back cover.
c. Antenna Cold Check - With the instrument AC
plug removed from any AC source, connect an
electrical jumper across the two AC plug prongs.
Place the instrument AC switch in the on position.
Connect one lead of an ohmmeter to the AC plug
prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the
coaxial connector. If the measured resistance is
less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected
before the instrument is returned to the customer.
Repeat this test with the instrument AC switch in
the off position.
d. Leakage Current Hot Check - With the instru-
ment completely reassembled, plug the AC line
cord directly into a 120V AC outlet. (Do not use an
isolation transformer during this test.) Use a leak-
age current tester or a metering system that complies with American National Standards Institute
(ANSI) C101.1 Leakage Current for Appliances
and Underwriters Laboratories (UL) 1410, (50.7).
With the instrument AC switch first in the on position and then in the off position, measure from a
known earth ground (metal water pipe, conduit,
etc.) to all exposed metal parts of the instrument
(antennas, handle brackets, metal cabinet, screw
heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current
measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet
and repeat the test.
READING SHOULD
NOT BE ABOVE 0.5 mA
LEAKAGE
DEVICE
BEING
TESTED
TEST ALL EXPOSED
METAL SURFACES
ALSO TEST WITH
PLUG REVERSED
USING AC
ADAPTER PLUG
AS REQUIRED
CURRENT
TESTER
EARTH
GROUND
ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL
SHOCK HAZARD THAT MUST BE ELIMINATED
BEFORE RETURNING THE INSTRUMENT TO
THE CUSTOMER OR BEFORE CONNECTING
THE ANTENNA OR ACCESSORIES.
e. X-Radiation and High Voltage Limits - Because
the picture tube is the primary potential source of
X-radiation in solid-state TV receivers, it is specially constructed to prohibit X-radiation emissions.
For continued X-radiation protection, the replacement picture tube must be the same type as the
original. Also, because the picture tube shields
and mounting hardware perform an X-radiation
protection function, they must be correctly in place.
High voltage must be measured each time servic-
1-2-1SFTY_2
ing is performed that involves B+, horizontal deflection or high voltage. Correct operation of the
X-radiation protection circuits also must be reconfirmed each time they are serviced. (X-radiation
protection circuits also may be called "horizontal
disable" or "hold down.") Read and apply the high
voltage limits and, if the chassis is so equipped,
the X-radiation protection circuit specifications given on instrument labels and in the Product Safety
& X-Radiation Warning note on the service data
chassis schematic. High voltage is maintained
within specified limits by close tolerance safety-related components/adjustments in the high-voltage
circuit. If high voltage exceeds specified limits,
check each component specified on the chassis
schematic and take corrective action.
2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, on the
receiver chassis, or on the picture tube.
3. Design Alteration Warning - Do not alter or add
to the mechanical or electrical design of this TV receiver. Design alterations and additions, including,
but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video
output connections, might alter the safety characteristics of this receiver and create a hazard to the
user. Any design alterations or additions will void
the manufacturer's warranty and may make you,
the servicer, responsible for personal injury or
property damage resulting therefrom.
4. Picture Tube Implosion Protection Warning -
The picture tube in this receiver employs integral
implosion protection. For continued implosion protection, replace the picture tube only with one of
the same type number. Do not remove, install, or
otherwise handle the picture tube in any manner
without first putting on shatterproof goggles
equipped with side shields. People not so
equipped must be kept safely away while picture
tubes are handled. Keep the picture tube away
from your body. Do not handle the picture tube by
its neck. Some "in-line" picture tubes are equipped
with a permanently attached deflection yoke; because of potential hazard, do not try to remove
such "permanently attached" yokes from the picture tube.
5. Hot Chassis Warning -
a. Some TV receiver chassis are electrically connect-
ed directly to one conductor of the AC power cord
and maybe safety-serviced without an isolation
transformer only if the AC power plug is inserted
so that the chassis is connected to the ground side
of the AC power source. To confirm that the AC
power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known
earth ground. If a voltage reading in excess of 1.0V
is obtained, remove and reinsert the AC power
plug in the opposite polarity and again measure
the voltage potential between the chassis and a
known earth ground.
b. Some TV receiver chassis normally have 85V
AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can
be safety-serviced only with an isolation transformer inserted in the power line between the receiver
and the AC power source, for both personnel and
test equipment protection.
c. Some TV receiver chassis have a secondary
ground system in addition to the main chassis
ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation
material that must not be defeated or altered.
6. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a.
near sharp edges, b. near thermally hot parts-be
sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage,
and e. antenna wiring. Always inspect in all areas
for pinched, out of place, or frayed wiring. Check
AC power cord for damage.
7. Components, parts, and/or wiring that appear to
have overheated or are otherwise damaged
should be replaced with components, parts, or wiring that meet original specifications. Additionally,
determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.
8. 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 strictly 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.
1-2-2SFTY_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 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
edged 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. Use care that foreign objects (screws, solder drop-
lets, etc.) do not remain inside the set.
K. Crimp type wire connector
When replacing the power transformer in sets
where the connections between the power cord
and power transformer primary lead wires are performed using crimp type connectors, in order to
prevent shock hazards, perform carefully and precisely the following steps.
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 the crimping tool to crimp the metal sleeve at
the center position. Be sure to crimp fully to the
complete closure of the tool.
L. When connecting or disconnecting the VCR con-
nectors, first, disconnect the AC plug from AC supply socket.
1-2-3SFTY_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 original positions. Afterwards, perform the following tests and confirm the specified values in order 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
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
AC Line VoltageRegion
110 to 130 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
USA or
CANADA
Clearance
Distance (d) (d')
≥ 3.2 mm
(0.126 inches)
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.).
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 both terminals of load
Z. See Fig. 2 and following table.
Table 2 : Leakage current ratings for selected areas
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
AC Line VoltageRegionLoad ZLeakage Current (i)Earth Ground (B) to:
110 to 130 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
USA or
CANADA
0.15µF CAP. & 1.5kΩ
RES. connected in
parallel
1-2-4SFTY_2
i≤0.5mA rms
Exposed accessible
parts
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as shown:
Top View
Out
2. For other ICs, pin 1 and every 5th pin is indicated
as shown:
Pin 1
3. The 1st pin of every pin connector are indicated as
shown:
Pin 1
Input
In
Bottom View
5
10
Instructions for Connectors
How to Read the Values of the Rectangular Type Chip Components
Example:
(a) Resistor
473
= 473 = 47 [kΩ]
(b) Capacitor
= Not Shown
Caution:
Once chip parts (Resistors, Capacitors, Transistors,
etc.) are removed, they must not be reused. Always
use a new part.
Pb (Lead) Free Solder
Pb free mark will be found on PCBs used Pb free
solder. (Refer to figure.) For PCBs with Pb free
mark, be sure to use Pb free solder. For PCBs
without Pb free mark, use standard solder.
(Top View)
(Top View)
1. When you connect or disconnect FFC cable (connector), be sure to disconnect the AC cord.
2. FFC cable (connector) should be inserted parallel
into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
[ CBA= Circuit Board Assembly ]
Pb free mark
Replacement Procedures for
Leadless (Chip) Components
The Following Procedures are Recommended for the Replacement of the Leadless Components Used in this Unit.
1. Preparation for replacement
1.1. Pb free solder
a. Soldering Iron
Use a soldering iron for Pb free solder.
b. Solder
Be sure to use Pb free solder.
c. Soldering time
Do not apply heat for more than 4 seconds.
1-3-1SFTY_Z13N
d. Preheating
Leadless capacitor must be preheated before
installation. (130°C~150°C, for about two minutes.)
1.2. Standard solder
a. Soldering Iron
Use a pencil-type soldering iron (less than 30
watts).
b. Solder
Eutectic solder (Tin 63%, Lead 37%) is recommended.
c. Soldering time
Do not apply heat for more than 4 seconds.
d. Preheating
Leadless capacitor must be preheated before
installation. (130°C~150°C, for about two minutes.)
Notes:
a. Leadless components must not be reused after
removal.
b. Excessive mechanical stress and rubbing for the
component electrode must be avoided.
2. Removing the leadless component
Grasp the leadless component body with tweezers
and alternately apply heat to both electrodes. When
the solder on both electrodes has melted, remove
leadless component with a twisting motion.
Tweezers
Chip
Soldering Iron
Soldering Iron
Tweezers
Solder
Soldering Iron
Notes:
a. Do not attempt to lift the component off the board
until the component is completely disconnected
from the board by the twisting action.
b. Take care not to break the copper foil on the printed
board
3. Installing the leadless component
a. Presolder the contact points of the circuit board.
b. Press the part downward with tweezers and solder
both electrodes as shown below.
Note:
Do not glue the replacement leadless component to
the circuit board.
Presolder
1-3-2SFTY_Z13N
How to Remove / Install Flat Pack IC
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 apply the hot air to the chip parts around the
Flat Pack-IC for over 6 seconds as damage may
occur to the chip parts. Put Masking Tape around
the Flat Pack-IC to protect other parts from damage. (Fig. S-1-2)
3. The Flat Pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or solder lands under the IC when removing it.
1. Removal
With Hot - Air Flat Pack - IC Desoldering Machine:
a. Prepare the Hot - Air Flat Pack - IC Desoldering
Machine, then apply hot air to Flat Pack - IC (about
5~6 seconds). (Fig. S-1-1)
b. Remove the Flat Pack- IC with tweezers while
applying the hot air.
With Soldering Iron:
a. 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)
b. 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)
With Iron Wire:
a. 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)
b. Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
c. Pull up on the wire as the solder melts so as to lift
the IC leads from the CBA contact pads, while
heating the pins using a fine tip soldering iron or
hot air blower.
Note:
When using a soldering iron, care must be taken
to ensure that the Flat Pack - IC is not being held
by glue, or when it is removed from the CBA, it
may be damaged if force is used.
2. Installation
a. Using desoldering braid, remove the solder from
the foil of each pin of the Flat Pack - IC on the CBA,
so you can install a replacement Flat Pack - IC
more easily.
b. The "I" mark on the Flat Pack - IC indicates pin 1
(See Fig. S-1-6). Make sure this mark matches the
1 on the CBA when positioning for installation.
Then pre - solder the four corners of the Flat PackIC (See Fig. S-1-7).
c. Solder all pins of the Flat Pack - IC. Make sure that
none of the pins have solder bridges.
Fig. S-1-1
Hot-air
Flat Pack-IC
Desoldering
CBA
Masking
Tape
Tweezers
Flat Pack-IC
Desoldering Braid
Machine
Flat Pack-IC
Fig. S-1-2
Soldering Iron
Fig. S-1-3
1-3-3SFTY_Z13N
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
Hot Air Blower
Iron Wire
Soldering Iron
Presolder
Flat Pack-IC
CBA
Fig. S-1-7
or
To Solid
Mounting Point
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-5
Fig. S-1-6
1-3-4SFTY_Z13N
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is properly grounded to remove any static electricity that may
be charged on the body.
Ground for Work Bench
Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the work bench or
other surface, where the semiconductors are to be
placed. Because the static electricity charge on the
clothing will not escape through the body grounding
band, be careful to avoid contacting semiconductors to
clothing.
<Incorrect>
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-3-5SFTY_Z13N
PREPARATION FOR SERVICING
How to Enter the Service Mode
Caution: 1
1. Optical sensors system are used for Tape Start and
End Sensor on this equipment. Read this page
carefully and prepare as described on this page
before starting to service; otherwise, the unit may
operate unexpectedly.
Preparing: 1
1. Cover Q202 (START SENSOR) and Q201 (END
SENSOR) with Insulation Tape or enter the service
mode to activate Sensor Inhibition automatically.
Note: Avoid playing, rewinding or fast forwarding the
tape to its beginning or end, because both Tape End
Sensors are not active.
How to Enter the Service Mode
1. Turn power on.
2. Use service remote control unit and press WAKEUP/SLEEP key. (See page 1-6-1)
3. When entering the service mode, one of the number (1, 2 or 4) will display at corners of the screen.
4. During the service mode, electrical adjustment
mode can be selected by remote control key (service remote control unit).
Details are as follows.
KeyAdjustment Mode
Purity check mode: Shows Red, Green,
7
8
9
VOL p
Caution: 2
1. The deck mechanism assembly is mounted on the
Main CBA directly, and SW211 (REC-SAFETY
SW) is mounted on the Main CBA. When deck
mechanism assembly is removed from the Main
CBA due to servicing, this switch can not be operated automatically.
Blue or White cyclically on the screen
each time the "7" key is pressed.
H. Shift adjustment mode: See
adjustment instructions page 1-6-4.
V.size/V. shift adjustment: See
adjustment instructions page 1-6-4.
Initial Setting mode: See adjustment
instructions page 1-6-2.
Cut-off Adjustment mode: See
adjustment instructions page 1-6-4.
Preparing: 2
1. To eject the tape, press the STOP/EJECT button
on the unit (or Remote Control).
2. When you want to record during the Service mode,
press the Rec button while depressing SW211
(REC-SAFETY SW) on the Main CBA.
KeyAdjustment Mode
Picture adjustment mode: Press the
MENU button to change from BRT
(Bright), *CNT (Contrast), *COL (Color),
MENU
0
1No need to use.
2
3No need to use.
4
5
*TNT(Tint) and *V-T. Press CH UP/
DOWN key to display Initial Value.
*Marked items are not necessary to
adjust normally.
C-Trap and Y DL Time TV/Y DL Time
EXT/Y SW LPF/Black Stretch Off/ Black
Stretch CONT/C. Angle adjustment
mode: See adjustment instructions
page 1-6-2 and 1-6-3.
H adjustment mode: See adjustment
instructions page 1-6-2.
Auto record mode: Perform recording
(15 Sec.)-->Stop-->Rewind (Zero
return) automatically.
Head switching point adjustment mode:
See adjustment instructions page 1-6-
6.
Q201
(END SENSOR)
SW211
(REC-SAFETY SW)
Q202
(START SENSOR)
MAIN CBA
6No need to use.
1-4-1T5505PFS
CABINET DISASSEMBLY INSTRUCTIONS
[ SRC2213W ]
1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the
cabinet parts and the CBA in order 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.
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] Tray Chassis
[3] Deck Unit
[4] Main CBA
[5] CRT
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1]
[2]
PART
Rear
Cabinet
Tr ay
Chassis
REMOVE/
*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
1, 2 4(S-1), (S-2)1
Anode Cap, CN505,
3, 5
CRT CBA, CN601,
CN801, CN571
Note
2
(1): Order of steps in Procedure. When reassembling,
follow the steps in reverse order. These numbers
are also used as the Identification (location) No. of
parts in Figures.
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connec-
tor, *=Unhook, Unlock, Release, Unplug, or Desol-
der
2(S-2) = two screws (S-2)
(5): Refer to the following Reference Notes in the
Table.
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove screws 4(S-1) and (S-2).
Caution !
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Tray Chassis.
Discharge the Anode Lead of the CRT with the
CRT Ground Wire before removing the Anode Cap.
Disconnect the following: Anode Cap, CN505, CRT
CBA, CN601, CN571 and CN801. Then, pull the
Tray Chassis backward.
3. Removal of the Deck Unit.
Remove screws 7(S-3), (S-4) and (S-5). Then, desolder connectors (CL201, CL401, CL402, CL403)
and lift up the Deck Unit.
4. Removal of the Main CBA.
Remove screws 5(S-6) and (S-7). Then, pull up the
Main CBA.
5. Removal of the CRT.
Remove screws 4(S-8) and pull the CRT backward.
7(S-3), (S-4), (S-5),
[3]Deck Unit3, 5
[4]Main CBA3, 5 5(S-6), (S-7)4
[5]CRT44(S-8)5
↓
(1)
↓
(2)
Desolder (CL201,
CL401, CL402,
CL403)
↓
(3)
↓
(4)
3
↓
(5)
1-5-1T5505DC
S-1
S-2
[1] REAR CABINET
S-1
S-1
Fig. 1
S-1
S-1
S-2
S-1
[1] REAR CABINET
Fig. 2
1-5-2T5505DC
[2] TRAY CHASSIS
S-3
[4] MAIN CBA
S-6
S-3
[3] DECK UNIT
S-3
S-6
S-6
S-6
S-4
S-5
S-7
Fig. 3
1-5-3T5505DC
S-8
ANODE CAP.
S-8
CRT CBA
S-8
[5] CRT
S-8
Fig. 4
1-5-4T5505DC
ANODE
CRT
GND
MAIN CBA
CN505
SCREEN
TO SPEAKER
CL502A
CL501A
FOCUS
CRT CBA
CN801
CL201
CYLINDER
ASSEMBLY
CL401
CL403
CL402
TO DEGAUSS
COIL
CN601
AC CORD
CL502B
CN571
CL501B
CAPSTAN
MOTOR
FE HEAD
ACE HEAD
ASSEMBLY
1-5-5T5505DC
DECK UNIT
Fig. 5
[ SRC2419 ]
1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the
cabinet parts and the CBA in order 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.
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] Tray Chassis
[3] Deck Unit
[4] Main CBA
[5] CRT
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1]
[2]
PART
Rear
Cabinet
Tr ay
Chassis
REMOVE/
*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
1, 2 4(S-1), (S-2)1
Anode Cap, CN505,
3, 5
CRT CBA, CN601,
CN801, CN571
Note
2
(1): Order of steps in Procedure. When reassembling,
follow the steps in reverse order.These numbers
are also used as the Identification (location) No. of
parts in Figures.
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connec-
tor, *=Unhook, Unlock, Release, Unplug, or Desol-
der
2(S-2) = two screws (S-2)
(5): Refer to the following Reference Notes in the
Table.
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove screws 4(S-1) and (S-2).
Caution !
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Tray Chassis.
Discharge the Anode Lead of the CRT with the
CRT Ground Wire before removing the Anode Cap.
Disconnect the following: Anode Cap, CN505, CRT
CBA, CN601, CN571 and CN801. Then, pull the
Tray Chassis backward.
3. Removal of the Deck Unit.
Remove screws 7(S-3), (S-4) and (S-5). Then, desolder connectors (CL201, CL401, CL402, CL403)
and lift up the Deck Unit.
4. Removal of the Main CBA.
Remove screws 5(S-6) and (S-7). Then, pull up the
Main CBA.
5. Removal of the CRT.
Remove screws 4(S-8) and pull the CRT backward.
7(S-3), (S-4), (S-5)
[3]Deck Unit3, 5
[4]Main CBA3, 5 5(S-6), (S-7)4
[5]CRT44(S-8)5
↓
(1)
↓
(2)
Desolder (CL201,
CL401, CL402,
CL403)
↓
(3)
↓
(4)
3
↓
(5)
1-5-6T7505DC
S-1
[1] REAR CABINET
ANT.
S-1S-1
S-2
S-1
S-1
Fig. 1
S-1
S-2
S-1
[1] REAR CABINET
Fig. 2
1-5-7T7505DC
[2] TRAY CHASSIS
S-3
[4] MAIN CBA
S-6
S-3
[3] DECK UNIT
S-3
S-6
S-6
S-6
S-4
S-5
S-7
Fig. 3
1-5-8T7505DC
S-8
ANODE CAP
S-8
CRT CBA
S-8
[5] CRT
S-8
Fig. 4
1-5-9T7505DC
ANODE
CRT
GND
MAIN CBA
CN505
SCREEN
TO SPEAKER
CL502A
CL501A
FOCUS
CRT CBA
CN801
CL201
CYLINDER
ASSEMBLY
CL401
CL403
CL402
TO DEGAUSS
COIL
CN601
AC CORD
CL502B
CN571
CL501B
CAPSTAN
MOTOR
FE HEAD
ACE HEAD
ASSEMBLY
1-5-10T7505DC
DECK UNIT
Fig. 5
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note:
"CBA" is abbreviation for "Circuit Board
Assembly."
NOTE:
Electrical adjustments are required after replacing circuit components and certain mechanical parts.
It is important to perform these adjustments only after
all repairs and replacements have been completed.
Also, do not attempt these adjustments unless the
proper equipment is available.
Test Equipment Required
1. NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)
2. AC Milli Voltmeter (RMS)
3. Alignment Tape (FL8A, FL8N), Blank Tape
4. DC Voltmeter
5. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div,
F-Range: DC~AC-60MHz
6. Frequency Counter
7. Plastic Tip Driver
How to make service remote control
unit:
1. Prepare remote control unit. (Part No. N0107UD or
N0150UD) Remove 3 screws from the back lid.
(Fig. 1-1)
SCREW
Remote control unit (Bottom)
Fig. 1-1
How to Set up the Service mode:
Service mode:
1. Use the service remote control unit.
2. Turn the power on.
3. Press "WAKE-UP/SLEEP" button on the service
remote control unit.
[ SRC2213W ]
1-1. DC 105V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
Test pointAdj. PointModeInput
D613
Cathode
(+B)
C613(-)
(GND)
TapeM. EQ.Spec.
---
Note: D613 Cathode (+B), C613(-) (GND),
VR601 --- Main CBA
1. Connect the unit to AC Power Outlet.
2. Connect DC Volt Meter to D613 Cathode (+B) and
C613(-) (GND).
3. Adjust VR601 so that the voltage of D613 Cathode
(+B) becomes +105±0.5V DC.
VR601--------
DC Voltmeter
Plastic Tip Driver
+105±0.5V DC
2. Remote control unit: Part No. N0107UD
Add J1 (Jumper Wire) to the remote control CBA.
(Fig. 1-2)
J 1
J 1
Remote control CBA
Remote control CBA
Remote control unit: Part No. N0150UD
Cut off pin 10 of the remote control microprocessor
and short circuit pins 10 and 17 of the microprocessor with a jumper wire.
Note: The remote control with the unit cannot be used
as service remote control unit.
Fig. 1-2
Fig. 1-2
1-6-1T5505EA
[ SRC2419 ]
3-1. H Adjustment
1-2. DC 114V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
Test pointAdj. PointModeInput
D613
Cathode
(+B)
C613(-)
(GND)
TapeM. EQ.Spec.
---
Note: D613 Cathode (+B), C613(-) (GND),
VR601 --- Main CBA
1. Connect the unit to AC Power Outlet.
2. Connect DC Volt Meter to D613 Cathode (+B) and
C613(-) (GND).
3. Adjust VR601 so that the voltage of D613 Cathode
(+B) becomes +114±0.5V DC.
VR601--------
DC Voltmeter
Plastic Tip Driver
+114±0.5V DC
2. Initial Setting
General
1. Enter the Service mode. (See page 1-4-1)
2. Press "VOL p" button on the service remote control
unit. Display changes "C/D," "7F," "FM," "ACCESS
CODE," and "RC5" cyclically when "VOL p" button
is pressed.
3. To set each data value shown below, press "CH o
/ p" buttons on the service remote control unit.
Purpose: To get correct horizontal position and size of
screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Test pointAdj. PointModeInput
R583
TapeM. EQ.Spec.
---Frequency Counter 15.734kHz±300Hz
Note: R583 --- Main CBA
1. Connect Frequency Counter to R583.
2. Set the unit to the VIDEO mode and no input is
necessary. Enter the Service mode.
(See page 1-4-1.)
3. Operate the unit for at least 20 minutes.
4. Press "2" button on the remote control unit and
select H-Adj mode. (Press "2" button, then display
will change H-Adj.)
5. Press "CH o / p" buttons on the remote control
unit so that the display will change "0" to "7."
At this moment, choose display "0" to "7" when the
Frequency counter display is closest to
15.734kHz±300Hz.
6. Turn the power off and on again.
CH o / p
buttons
Video---
7F --- Set to "FF."
FM --- Set to "ON." [ SRC2213W ]
Set to "OFF." [ SRC2419 ]
ACCESS CODE --- Set to "ON."
RC5 --- Set to "OFF."
Note: C/D data value does not need to be adjusted at
this moment.
1-6-2T5505EA
3-2. C-Trap Adjustment
3-3. Y DL Time TV/Y DL Time EXT/
Purpose: To get minimum leakage of the color signal
carrier.
Symptom of Misadjustment: If C-Trap Adjustment is
incorrect, stripes will appear on the screen.
Test pointAdj. PointModeInput
J271
(B-OUT)
Tap eM. E Q .Sp e c .
---
minimum
Note: J271 (B-Out)--- Main CBA
1. Connect Oscilloscope to J271.
2. Input a color bar signal from RF input.
Enter the Service mode. (See page 1-4-1.)
3. Press "0" button on the remote control unit and
select C-TRAP mode.
4. Press "CH o / p" buttons on the remote control
unit so that the carrier leakage B-Out (3.58MHz)
value becomes minimum on the oscilloscope.
5. Turn the power off and on again.
CH o / p
buttons
Oscilloscope
Pattern Generator
Figure
---Color Bar
---
Fig. 2
Y SW LPF/Black Stretch Off/
Black Stretch CONT/C. Angle
Adjustment
Purpose: To get minimum leakage of the color signal
carrier.
Symptom of Misadjustment: If Y DL Time Adjust-
ment is incorrect, stripes will appear on the screen.
1. Enter the Service mode. (See page 1-4-1.)
2. Y DL Time TV Adjustment: Press "0" button on
the service remote control unit twice to show "D-T
TV" on the display.
Y DL Time EXT Adjustment: Press "0" button on
the service remote control unit three times to show
"D-T EXT" on the display.
Y SW LPF Adjustment: Press "0" button on the
service remote control unit four times to show "Y
SW" on the display.
Black Stretch Off Adjustment: Press "0" button
on the service remote control unit five times to
show "B-S" on the display.
Black Stretch CONT Adjustment: Press "0" button on the service remote control unit six times to
show "BS2" on the display.
C. Angle Adjustment: Press "0" button on the service remote control unit seven times to show "CANG" on the display.
3. Y DL Time TV Adjustment: Select "2" by pressing
"CH o / p" buttons on the service remote control.
Y DL Time EXT Adjustment: Select "2" by pressing "CH o / p" buttons on the service remote control.
Y SW LPF Adjustment: Select "1" by pressing
"CH o / p" buttons on the service remote control.
Black Stretch Off Adjustment: Select "OFF" by
pressing "CH o / p" buttons on the service remote
control.
Black Stretch CONT Adjustment: Select "0" by
pressing "CH o / p" buttons on the service remote
control.
C. Angle Adjustment: Select "103" by pressing
"CH o / p" buttons on the service remote control.
1-6-3T5505EA
4. V. Size Adjustment
C-TRAP Adjustment (Factory mode)
"0"
button
C-TRP 0C-TRP 1
"0" button
CH
button
CH
button
Y DL Time TV Adjustment
CH
D-T TV 0D-T TV 1
"0" button
button
CH
button
Y DL Time EXT Adjustment
CH
D-T EXT 0D-T EXT 1
"0" button
button
CH
button
Y SW LPF Adjustment
CH
Y SW
"0" button
button
0Y SW
CH
button
Purpose: To obtain correct vertical height of screen
image.
Symptom of Misadjustment: If V. Size is incorrect,
vertical height of image on the screen may not be
properly displayed.
Test pointAdj. PointModeInput
---
CH o / p
buttons
---Monoscope
TapeM. EQ.Spec.
---Pattern Generator90±5%
1. Enter the Service mode. (See page 1-4-1.)
Press "9" button on the remote control unit and
select V-S mode. (Press "9" button then display will
change to V-P and V-S).
2. Input monoscope pattern.
3. Press "CH o / p" buttons on the remote control
unit so that the monoscope pattern is 90±5% of display size and the circle is round.
5. V. Shift Adjustment
Purpose: To obtain correct vertical position of screen
1
image.
Symptom of Misadjustment: If V. position is incor-
rect, vertical position of image on the screen may not
be properly displayed.
Black Stretch Off Adjustment
CH
B-S OFF
"0" button
button
CH
button
B-S 0
Black Stretch CONT Adjustment
CH
BS2 0
"0" button
button
CH
button
BS2 1
C. Angle Adjustment
CH
C-ANG 103
button
CH
button
C-ANG 95
Test pointAdj. PointModeInput
---
CH o / p
buttons
---Monoscope
Tap eM . E Q .Sp e c.
---Pattern Generator90±5%
1. Enter the Service mode. (See page 1-4-1.)
Press "9" button on the remote control unit and
select V-P mode. (Press "9" button then display will
change to V-P and V-S).
2. Input monoscope pattern.
3. Press "CH o / p" buttons on the remote control
unit so that the top and bottom of the monoscope
pattern are equal to each other.
1-6-4T5505EA
6. H. Shift Adjustment
Purpose: To obtain correct horizontal position and
size of screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Test pointAdj. PointModeInput
---
TapeM. EQ.Spec.
---Pattern Generator90±5%
1. Enter the Service mode. (See page 1-4-1.)
Press "8" button on the remote control unit and
select H-P mode.
2. Input monoscope pattern.
3. Press "CH o / p" buttons on the remote control
unit so that the left and right side of the monoscope
pattern are equal to each other.
4. Turn the power off and on again.
CH o / p
buttons
---Monoscope
7. Cut-off Adjustment
Purpose: To adjust the beam current of R, G, B, and
screen voltage.
Symptom of Misadjustment: White color may be
reddish, greenish or bluish.
Test pointAdj. PointModeInput
Black
---Screen-ControlExt.
Raster /
White
Raster
Notes: Screen Control FBT --- MAIN CBA
F.B.T= Fly Back Transformer
Use the Remote Control Unit
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Set the screen control to minimum position. Input
the Black raster signal from RF input.
3. Enter the Service mode. (See page 1-4-1.)
Dimmed horizontal line appears on the CRT.
4. Press the "VOL p" button.
(Press "VOL p" then display will change CUT OFF/
DRIVE adjustment).
5. Choose CUT OFF/DRIVE mode then press "1" button. This adjustment mode is CUT OFF (R).
6. Press the "CH o / p" button until the horizontal line
becomes white.
7. Choose CUT OFF/DRIVE mode then press "2" button. This adjustment mode is CUT OFF (G). Press
"CH o / p" until the horizontal line becomes white.
8. Choose CUT OFF/DRIVE mode then press "3" button. This adjustment mode is CUT OFF (B). Press
"CH o / p" until the horizontal line becomes white.
9. Input the White Raster Signal from Video In.
10.Choose CUT OFF/DRIVE mode then press "4."
Adjust the RED DRIVE as needed with the "CH o /p" buttons to get the following value, X= 286, Y=
294.
11.Choose CUT OFF/DRIVE mode then press "5."
Adjust the BLUE DRIVE as needed with the "CH o
/ p" buttons to get the following value, X= 286.
12.Turn the power off and on again.
TapeM. EQ.Spec.
---Pattern Generator
Figure
PATTERN GENERATOR
EXT. INPUT
See Reference
Notes below
Fig. 3
1-6-5T5505EA
8. Sub-Brightness Adjustment
9. Focus Adjustment
Purpose: To get proper brightness.
Symptom of Misadjustment: If Sub-Brightness is
incorrect, proper brightness cannot be obtained by
adjusting the Brightness Control.
Test pointAdj. PointModeInput
---
TapeM. EQ.Spec.
---
White
Note: SYMPTE Setup level --- 7 IRE
1. Enter the Service mode. (See page 1-4-1.)
Then input SYMPTE signal from RF input.
2. Press MENU button. (Press MENU button then display will change BRT, CNT, COL, TNT and V-T).
Select BRT and press "CH o / p" buttons so that
the bar is just visible (See above figure).
3. Turn the power off and on again.
CH o / p
buttons
Pattern
Generator
Figure
---
SYMPTE
7.5IRE
See below
Black
This bar
just
visible
Fig. 4
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Test pointAdj. PointModeInput
---Focus Control---Monoscope
Tap eM. E Q .Sp e c.
---Pattern GeneratorSee below.
Note: Focus VR (FBT) --- MAIN CBA
FBT= Fly Back Transformer
1. Operate the unit more than 30 minutes.
2. Face the unit to the East and degauss the CRT
using a Degaussing Coil.
3. Input the monoscope pattern.
4. Adjust the Focus Control on the FBT to obtain clear
picture.
10. Head Switching Position Adjustment
Purpose: Determine the Head Switching Position dur-
ing Playback.
Symptom of Misadjustment: May cause Head
Switching Noise or Vertical Jitter in the picture.
Note: Unit reads Head Switching Position automati-
cally and displays it on the screen (Upper Left Corner).
1. Insert the test tape (FL8A, FL8N).
2. Set the unit to the stop condition.
3. Enter the Service mode. (See page 1-4-1.)
4. Press "PAUSE" button on the remote control unit.
5. Confirm that indication of OSD is 6.5H.
11. CCS Text Box Location
When replacing the CRT, the CCS Box might not stay
in appropriate position. Then, replace micro computer.
Note: This adjustment automatically done by the
microcomputer.
1-6-6T5505EA
The following 2 adjustments normally are not
attempted in the field. They should be done
only when replacing the CRT then adjust as a
preparation.
12.Purity Adjustment
Purpose: To obtain pure color.
Symptom of Misadjustment: If Color Purity Adjust-
ment is incorrect, large areas of color may not be properly displayed.
Test pointAdj. PointModeInput
---
TapeM. EQ.Spec.
---Pattern GeneratorSee below.
Deflection Yoke
Purity Magnet
Figure
---*Red Color
13. Convergence Adjustment
Purpose: To obtain proper convergence of red, green
and blue beams.
Symptom of Misadjustment: If Convergence Adjust-
ment is incorrect, the edge of white letters may have
color edges.
Test pointAdj. PointModeInput
C.P. Magnet (RB),
---
C.P. Magnet (RB-G),
Deflection Yoke
TapeM. EQ.Spec.
---Pattern GeneratorSee below.
Figure
CRT
COIL
PURITY
SCREW
RB
---
RB-G
RING LOCK
Dot Pattern
or
Crosshatch
SCREW
GREEN
RED
BLUE
Fig. 5
* This becomes RED COLOR if push 7KEY with a
service mode.
1. Set the unit facing east.
2. Operate the unit for over 30 minutes before adjusting.
3. Fully degauss the unit using an external degaussing coil.
4. Set the unit to the AUX mode which is located
before CH2 then input a red raster from video in.
5. Loosen the screw on the Deflection Yoke Clamper
and pull the Deflection Yoke back away from the
screen. (See Fig. 6.)
6. Loosen the Ring Lock and adjust the Purity Magnets so that a red field is obtained at the center of
the screen. Tighten Ring Lock. (See Fig. 5,6.)
7. Slowly push the Deflection Yoke toward the bell of
the CRT and set it where a uniform red field is
obtained.
8. Tighten the clamp screw on the Deflection Yoke.
DY WEDGE
COIL CLAMPER
DEFLECTION YOKE
C.P. MAGNET (RB)
R
G
B
C.P. MAGNET (RB-G)
RB
G
C.P. MAGNET
CLAMPER
C.P. MAGNET
RB
Fig. 6
R
G
B
Fig. 7
G
Fig. 8
1-6-7T5505EA
1. Set the unit to the AUX mode which is located
before CH2 then input a Dot or crosshatch pattern.
2. Loosen the Ring Lock and align red with blue dots
or Crosshatch at the center of the screen by rotating (RB) C.P. Magnets. (See Fig. 7.)
3. Align red / blue with green dots at the center of the
screen by rotating (RB-G) C.P. Magnet.
(See Fig. 8.)
4. Fix the C.P. Magnets by tightening the Ring Lock.
5. Remove the DY Wedges and slightly tilt the Deflection Yoke horizontally and vertically to obtain the
best overall convergence.
6. Fix the Deflection Yoke by carefully inserting the DY
Wedges between CRT and Deflection Yoke.
1-6-8T5505EA
BLOCK DIAGRAMS
Servo/System Control Block Diagram
TO
CHROMA /TUNER
BLOCK
AL+5V
SCL
CS
7
45
C-OPEN
I
SDA
AFT-IN
C-SYNC
8
74
AFT-IN
C-SYNC
IF-MUTE
21
IF-MUTE
KEY
KEY
SW201 SW204,SW206
SWITCH
SWITCH
SW205,SW207 SW210
6
5
KEY 1
KEY 0
TO
POWER SUPPLY
BLOCK
P-ON-H
P-DOWN
84
31
P-ON-H
P-DOWN
D204 REC
22
23
REC LED
REC LED
(MEMORY)
SCL
IC202
6
71
SCL
SDA
5
72
SDA
2
FM/TV-SW
26
FM/TV-SW
SCL
TO
AUDIO BLOCK
SDA
A-MUTE
SP-MUTE
12
SP-MUTE
D-REC-H
44
65
A-MUTE
D-REC-H
REC
SAFETY
SW211
33
REC-SAFETY
YCA-CS
YCA-SCLK
YCA-SOUT
69
70
YCA-CS
YCA-SCLK
TO
VIDEO BLOCK
ROTA
V-ENV
DV-SYNC
10
13
68
V-ENV
DV-SYNC
YCA-SOUT
RF-SW
15
ROTA
V-H-SW
16
18
RF-SW
V-H-SW
ENV-DET
17
ENV-DET
IC201
(SERVO/SYSTEM CONTROL)
AL+5V
D203
MAIN CBA
REMOTE
RS201
S-LED
REMOTE
14
SENSOR
CTL AMP OUT
CTL(+)
95
97
TP201
CTL
WF3
CL402
22CTL(+)
CTL(-)
94
11CTL(-)
LD-SW
SW212
LD-SW
1
ST-SENS.
T-REEL
END-SENS.
9
7
80
T-REELST-SENS.
END-SENS.
Q201
Q202Q206
RESET
34
Q205
RESET
TIMER+5V
SENSOR CBA
(END-SENSOR)
SENSOR CBA
(ST-SENSOR)
C-F/R
C-FG
87
66
P-ON+12V
P-ON+5V
1P-ON+12V
2P-ON+5V(2)
3C-FG
4C-F/R
CL201
M
CAPSTAN
CAPSTAN MOTOR
MOTOR
C-CONT
76
5
6FG-GND
C-CONT
D-PFG
LD-CONT82D-CONT
90
77
7LD-CONT
8
9D-PFG
D-CONT
D/L+12V
10M-GND
11D/L+12V
DEF+B
12D/L+15V
M
)
ASSEMBLY
(DECK
AC HEAD ASSEMBLY
CONTROL
HEAD
1-7-1
PG
M
SENSOR
CYLINDER ASSEMBLY
DRUM
MOTOR
LOADING
MOTOR
T5505BLS
Video Block Diagram
REC VIDEO SIGNAL PB VIDEO SIGNALMODE: SP/REC
MAIN CBA
X401
3.58MHz
WF2
14
4950
VXO
LUMINANCE
Q402
CCD 1H
VCA
CLAMP
BUFFER
DELAY
36373934
SIGNAL PROCESS
YNR/COMB FILTER
CHROMINANCE
69
SIGNAL PROCESS
70
74
R
SP
HEAD
AMPEPHEAD
72
73
P
SP
EP
AMP
65
66
67
WF6
TP402
V-ENV
C-ROT/RF-SW
V-ENV
57
59
ENV-DET
58
60
WF5
Q401
TP301
26
6dB
AMP
BUFFER
IC401
(VIDEO SIGNAL PROCESS/ HEAD AMP)
V-OUT
QV/QH
Y/C
FBC
VIDEO
TUNER
42
32
WF4
LINE-VIDEO
VIDEO
TU-VIDEO
TO
CHROMA/TUNER
BLOCK
MIX
RP
AGC
LINE
30
JK701
FRONT V-IN
I/F
SERIAL
53
54
YCA-SCLK
YCA-SOUT
YCA-CS
TO
SERVO/SYSTEM
DV-SYNC
24
55
DV-SYNC
CONTROL BLOCK
V-COM
V(R)-1
V(L)-1
CL401
123
VIDEO (L)-1 HEAD
VIDEO (R)-1 HEAD
V-COM
V(L)-2
V(R)-2
456
VIDEO (L)-2 HEAD
RF-SW
TP202
ROTA
WF1
VIDEO (R)-2 HEAD
V-ENV
V-H-SW
ENV-DET
RF-SW
TO
SERVO/SYSTEM
CONTROL BLOCK
CYLINDER ASSEMBLY
1-7-2
(DECK ASSEMBLY)
T5505BLV
Audio Block Diagram
JK801
EARPHONE JACK
Mode : SP/REC
61
CL802
CN801
SP801
SPEAKER
1
SP-GND2
SPEAKER
TO
SERVO/SYSTEM
CONTROL BLOCK
TO
SERVO/
SYSTEM
CONTROL
BLOCK
10
A-MUTE
D-REC-H
MUTE
LINE
AMP
REC
ALC
TUNER
LINE
7876
P
R
2
4
3
AMP
89
58
WF9
MAIN CBA
PB-AUDIO SIGNALREC-AUDIO SIGNAL
IC301(CHROMA/DEFLECTION SIGNAL PROCESS)
IC801 (AMP)
AMP
241415
MUTE
/STANDBY
AUDI O
TUNER
SERIAL
EQ
6
CL402
SP/LP-ON
AMP
A-COM
A-PB/REC
346
5
AE-H
AE-H/FE-H
5
Q872
BIAS
OSC
AUTO
Q871
11
BIAS
Q873
CL403
P-ON+5V
FE-H
FE-H-GND
2
1
P-ON+5V
Q875
Q874
SP-MUTE
2
(AUDIO SIGNAL PROCESS)
IC401
WF8
TP401
VCR
LINE
26
A-OUT
21
32
ATT
I/F
SDA
TU-AUDIO
TO
CHROMA/TUNER
BLOCK
SCL
TO
SERVO/SYSTEM
CONTROL BLOCK
JK702
FRONT A-IN
AC HEAD ASSEMBLY
AUDI O
HEAD
AUDI O
ERASE
HEAD
BLOCK DIAGRAM FOR SECTION 2 (DECK MECHANISM)
1-7-3
FE HEAD UNIT
FULL
ERASE
HEAD
T5505BLA
Chroma/Tuner Block Diagram
MAIN CBA
REC VIDEO SIGNALPB VIDEO SIGNALMode : SP/REC
REC-AUDIO SIGNAL
TO AUDIO BLOCKTOSERVO/ SYSTEM
TU VIDEO TO VIDEO BLOCK
TU-AUDIO
1
9
AF
AMP
FM
EQ
DET
AMP
2
7
WF7
IF-MUTE
6
VCO F/B
CONTROL BLOCK
FM/TV-SW
TO
VIDEO
25
23
TUNER
VCR
VIDEO BLOCK
LINE-VIDEO
20
LINE
VCR
TUNER
LINE
X301
CHROMA
3.58MHz
BPF
18
VXCO
FILTER
TUNING
CHROMA
SIGNAL
PROCESS
CIRCUIT
TO
RED
2
CL502B
2
CRT/H.V. BLOCK
CL502A
GREEN3
BLUE
4
453
TP302
AFC
WF11
AFC
40
TO
CRT/H.V. BLOCK
H-DRIVE
ACL
41
V-RAMP-NF
V-DRIVE
FM-ANT
SRC2213W
TU001
CF031
IC001 (IF SIGNAL PROCESS)
SF001
2
FM-ANT
4.5MHz
TRAP
4
VIDEO
DET
VIF
AMP
16
17
SAW
FILTER
11
IF
CF032
4.5MHz
FILTER
VCO
AFT
13
AMP
11
LPF
RF
AGC
14
1
AGC
IF AGC DET
4
5
SCL
SDA
8
FSC
IC301 (CHROMA/DEFLECTION SIGNAL PROCESS)
31
SERIAL
I/F
15
14
INTELLIGENT
MONITORING
6
SYNC
SEPARATION
SCL
SDA
CHROMA
AFT-IN
C-SYNC
TRAP
LUMA
SIGNAL
IC201
PROCESS
CIRCUIT
H-SYNC
V-SYNC
SRC2213W
(SYSTEM CONTROL/OSD)
PROCESS
CIRCUIT
PROCESS
CIRCUIT
11FM/FM-ANT-H
OSD MIX/RBG MATRIX/
BLIGHT/DRIVE AMP/
11
12
16
63
64
56
CV-IN
OSD-R
OSD-G
HV BLANKING
9
13
10
595860
62
OSD-B
V-SYNC
OSD-BLK
WF18
8
H-SYNC
WF17
35
WF10
34
1-7-4
TO
SERVO/SYSTEM
CONTROL BLOCK
T5505BLC
CRT/H.V. Block Diagram
V-
DRIVEH-DRIVE
L551
DEFLECTION-YOKE
543
WF13
Mode : SP/REC
1
CN571
ANODE
JK501
FOCUS
SCREEN
GND
V501
RGB
CRT
HEATER
GND
CN505
WF16
REC VIDEO SIGNALPB VIDEO SIGNAL
IC551 (V-DEFLECTION CONTROL)
THERMAL
PROTECTION
7
5
AMP
WF15WF14
Q511
Q521
RED AMP
BLUE AMP
Q531
GREEN AMP
CRT CBA
CL501ACL501B
VCC
UP
T572
Q571
H.OUTPUT
32
6
PUMP
1
ANODE
FOCUS VR
F
HV
T571 F.B.T.
FOCUS
SCREEN
33HEATER
11+160V
SCREEN VR
S
11
7
8
10
1
5
3
6
9
4
MAIN CBA
Q572
H.DRIVE
WF12
+B
TO
DEF+B
POWER SUPPLY BLOCK
1-7-5
AFC
ACL
V-DRIVE
H-DRIVE
TO
CHROMA/TUNER BLOCK
V-RAMP-NF
2RED
CL502A
TO
3GREEN
4BLUE
CHROMA/TUNER
BLOCK CL502B
T5505BLCRT
Power Supply Block Diagram
+B
DEF+B
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
AL+33V
P-ON+5V
+5V REG.
Q613
P-ON+5V
+5V REG.
IC602
Q608
P-ON+5V
+5V REG.
P-ON+5V
+5V REG.
Q611
AL+12V
P-ON+8V
+8V REG.
Q610
AL+5V
Q609
+5V REG.
P-ON+12V
TIMER+5V
Q612
P-DOWN
(TO PIN84 OF IC201)
Q606
Q607
P-ON-H
(TO PIN31 OF IC201)
IC301
Q605
3027
+5.7V
REGULATOR
P-ON-ON
MAIN CBA
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE 4 A, 125V FUSE.
CAUTION:
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE 4A, 125V.
4A/125V
T601
12
11
6
10
4
9
HOTCOLD
BRIDGE
RECTIFIER
D603 - D606
FILTER
PS601
CN601
L601
LINE
4A/125V
F601
HOT CIRCUIT. BE CAREFUL.
4A/125V
2
Q601
SWITCHING
+B ADJ.
VR601
FEED
BACK
7
8
41
1
IC601
ERROR
VOLTAGE DET
LIMITER
Q602
Q604
32
DG601
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
W601
DEGAUSSING
COIL
1-7-6
T5505BLP
MECHANICAL TROUBLE INDICATOR
1, Each Malfunction Indication
If the MONITOR is turned ON right after the Mechanical Malfunction occurs or POWER SAFETY is turned
ON, display the following character to show Malfunction after the EJECT display.
If P-SAFETY 1 port becomes continuously 2.5V or
more for 120 msec. (4 times 40 msec. interval), the
unit shall immediately turn OFF the POWER/MONITOR and switch over to the Mechanical Malfunction
mode with POWER OFF.
(To return from this mode shall become possible only
by POWER Key as in the case of the Mechanical Malfunction).
POWER SAFETY
1) POWER SAFETY 2
If P-SAFETY 2 port becomes continuously 2.5V or
less for 120 msec. (4 times 40 msec. interval) when
P-ON-H port is ON, the unit shall be assumed to be
the Power Malfunction 2 and immediately turn OFF
the POWER/MONITOR and switch over the
Mechanical Malfunction mode with POWER OFF.
(Shall not unload)
(To return from this mode shall become possible
only by POWER Key as in the case of the Mechanical Malfunction).
* However the POWER SAFETY 2 function shall be
disabled during 500 msec. right after the P-ON-H
turns ON.
2) POWER SAFETY 3
If P-SAFETY 3 port becomes continuously 2.5V or
over for 120 msec. (4 times 40 msec. interval)
when MONITOR is ON, P-SAFETY 3 function is
available. After that, if P-SAFETY 3 port becomes
continuously 2.5V or less for 120 msec. (4 times 40
msec. interval), the unit shall be assumed to be the
Power Malfunction 3 and immediately turn OFF the
POWER/MONITOR and switch over the Mechanical Malfunction mode with POWER OFF.
(Shall not unload)
(To return from this mode shall become possible
only by POWER Key as in the case of the Mechanical Malfunction).
1-7-7T5553MTI
Mechanical Malfunction determination
1) REEL Malfunction detection
Countermeasure for REEL and CAPSTAN motor
After the Malfunction detection with REEL/CAPSTAN sensor, the unit shall switch over to STOP
(B) and be REEL Mechanical Malfunction.
a) If the T-REEL pulse is not impressed after a lapse
of 5 sec. at SP, 10 sec. at LP, 14 sec. at SLP, or
more in the REEL Rotation Mode like PLAY/REC,
FS/RS Mode, and the T-REEL or S-REEL pulse is
not impress after a lapse of 4 sec. or more in REEL
Rotation Mode of FF/REW, it shall be assumed to
stop the rotation and switch over to STOP (B) position, then POWER be turned OFF and the unit be
REEL Mechanical Malfunction. (T-REEL and SREEL for the models on S-REEL and only T-REEL
for other models)
b) If the C-FG pulse is not impressed for a lapse of 1
sec. or more during the CAPSTAN MOTOR rotation, it shall be MOTOR Rotation Malfunction
(REEL Malfunction).
2) DRUM Malfunction detection
Detect the DRUM rotation at the D-FG input termi-
nal.
If the variation of D-FG input level is not detected
for a lapse of 1 sec. or more when D-CONT is "H",
it shall be assumed to be Rotation Malfunction and
be DRUM Malfunction.
When detect Drum Malfunction, POWER shall be
turned OFF after the unit switches over to STOP
(B) Mode.
3) Countermeasure for TAPE LOADING Malfunction
Detect the Malfunction with the LOADING Switch.
a) TAPE LOADING Malfunction
If LD-SW does not go to the established position
after a lapse of 7 sec. or more from TAPE LOADING or TAPE UNLOADING start, the LOADING
function shall immediately be stopped and POWER
be turned OFF, and inform the Timer about the
LOADING Mechanical Malfunction.
b) LD-SW Position Malfunction at each mode
When the unit operates at each mode, even if the
LD-SW position changes from the established one
in its mode, it keeps the function according to its
mode.
4) Countermeasure for CASSETTE LOADING Malfunction
a) CASSETTE IN operating Malfunction
If LD-SW does not go to SB position after a lapse
of 5 sec. or more from the CASSETTE insertion
start, the unit starts the CASSETTE OUT operation.
After switch over to CASSETTE OUT operation and
then a laps of 5 sec. or more from the CASSETTE
OUT operation start, if LD-SW does not go to the
EJ position or if START Sensor and END Sensor
does not turn "ON" at the EJ position, the unit
starts again to insert CASSETTE.
(However in S-INH state, the START/END Sensor
shall be disabled).
b) CASSETTE OUT operating Malfunction
After a lapse of 5 sec. or more from CASSETTE
OUT operation start, if LD-SW does not go to the
EJ position or if START Sensor and END Sensor
does not turn "ON" at the EJ position, the unit
starts to insert CASSETTE.
(However in S-INH state, the START/END Sensor
shall be disabled).
When the unit switches over to CASSETTE insertion at CASSETTE IN or CASSETTE OUT Malfunction, if LD-SW does not go to the SB position
after a lapse of 5 sec. or more from CASSETTE
insertion start, the function shall immediately be
stopped and POWER be turned OFF, and the unit
be CASSETTE LOADING Malfunction.
c) When POWER is turned ON, if the CL position or
GC position cannot be detected after 5 sec. LDREV operation and 5 sec. LD-FWD operation, the
function shall immediately be stopped and POWER
be turned OFF, and the unit be CASSETTE LOADING Malfunction.
d) When POWER is turned ON without CASSETTE
(EJ position) and LD-SW is monitored all the time,
if the CL or GC position is detected continuously for
1 sec. or more, the POWER shall be turned OFF
and the unit be CASSETTE LOADING Malfunction.
Countermeasure for Mechanical
Malfunction
If the unit detects Mechanical Malfunction, turn the
POWER OFF. If the unit is Mechanical Malfunction,
Key input except POWER key shall be disabled and
CASSETTE insertion disabled. When POWER Key is
entered, the POWER is turned ON and the unit
switches over the EJECT Mode. (Return with POWER
ON)
1-7-8T5553MTI
Power Supply Trouble Shooting Guide
It is highly recommended that a variable isolation
transformer which can monitor current be used.
(Alternatively a variable AC source which monitors
current will do). Read directions below before
power is added!
CHECK
Repair method
Check Fuse (F601) is blown
out or not.
If fuse is blown out,
YES
#1
do repair method #1
NO
Check whether the primary
rectifying DC of the Switching
power supply has an output.
NO
#2
(Reading should be about 168V.
YES
Voltage of the 105V line
higher than normal?
YES
#3
NO
The transformer of the power
supply makes a higher sound
or the oscillation wave form is
abnormal.
(E.g. intermittent oscillation)
Connect the positive probe of
oscilloscope to the pin 16 of
YES
#4
T601, then connect the negative
probe to the pin 12. Observe the
waveform and check to see if
the waveform is out of limit of
value shown in Fig.1.
Voltage approx. 5Vp-p
0V
T=Approx. 6 to 14 sec
Oscilloscope setting: 1V/DIV.
2 sec./DIV
Fig.1
Repair method #1
(Power must be off)
Short circuit in the secondary side. check diode D613,
D614, D616, D617 and D618, switching transistor
(Q601), control transistor (Q602), diode and resistor
replace as necessary.
Disconnect 105V diode (D613), 25V diode (D614), 8V
diode (D616), 12V diode (D617), 12V diode (D618)
and Check the load continuity of 105V line, 25V line,
8V line, 12V line through a tester (resistance range).
If the tester indicates a lower resistance value around
0 ohm, the line is short-circuited.
Before repairing the switching power supply, find out
the short-circuited area of such line and repair it.
If the tester does not indicate any low resistance value
(around 0 ohm), no load is short-circuited and there is
no problem.
Check for any defective parts while the secondary rectifying diodes are disconnected (D613, D614, D616,
D617 and D618) perform a diode check in both forward and reverse directions through a tester.
NO
There is no problem on the
SW power supply
1-7-9T5553TR1
Repair method #2
Check the primary rectifying diodes (D603-D606) as
possible problems. Remove the above mentioned
parts and check them. Perform check according to the
step 1 and 2 of repair method #1 and check for defects
following parts, then if necessary replace with factory
originals.
R602 is open or not.
Q601, Q602, D607, D608 and D611 are short or not.
Repair method #3
The feedback circuit which is monitored by the output
of D613 105V may not work and this may be regarded
as a possible cause, remove IC601 (Photo Coupler),
diode (D620) and transistor (Q604) check for defects.
Repair method #4
Check control circuitly which is connecting to Pin 2
and 1 of Switching Transformer T601.
1-7-10T5553TR1
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS
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 necessarily be obtained by using replacement components rated for higher voltage, wattage,
etc. Replacement parts that have these special safety
characteristics are identified in this manual and its
supplements; electrical components 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 safety characteristics as specified in the parts list may create shock, fire, or other
hazards.
Capacitor Temperature Markings
Mark
(B)
(F)+30 -80%20°C-25~+85°C
Capacity
change rate
±10%
Standard
temperature
20°C-25~+85°C
Temperature
range
Note:
1. Do not use the part number shown on 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 resistance values are indicated in ohms (K=10
6
).
M=10
3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4. All capacitance values are indicated in µF
-6
(P=10
5. All voltages are DC voltages unless otherwise
specified.
µF).
3
,
(SR)
(Z)+30 -80%20°C-10~+70°C
Capacitors and transistors are represented by the following symbols.
±15%
20°C-25~+85°C
CBA Symbols
(Top View) (Bottom View)
+
Electrolytic Capacitor
(Bottom View)
Transistor or Digital Transistor
E C B
(Top View)
NPN Transistor
E C B
(Top View)
E C B
PNP Transistor
Schematic Diagram Symbols
Digital Transistor
(Top View)
E C B
NPN Digital Transistor
(Top View)
PNP Digital
Transistor
E C B
1-8-1SC_1
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON
THE FOLLOWING PAGES:
1. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME
TYPE_A,_V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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 supply. Otherwise it may cause some components 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 slightly 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. Note: Mark "•" is a leadless (chip) component.
6. Mode: SP/REC
7. Voltage indications for PLAY and REC modes on the schematics are as shown below:
PLAY mode
REC mode
3
2
1
ABCD
AREA D3
1-D3
The same voltage for
both PLAY & REC modes
8. How to read converged lines
1-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".
5.0
231
5.0
(2.5)
Indicates that the voltage
is not consistent here.
Unit: Volts
1-B1
AREA B1
9. 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.
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
4A/125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
10.0
0
S3
S2
T3
T2
U3
U2
V3
V2
W3
W2
X3
X2
S1
1-8-9
T1
U1
V1
1-8-10
W1
X1
T5505SCM4
Main 5/5 & CRT Schematic Diagram
MAIN 5/5
Ref No.Position
IC551
Y-3
Q571
AA-2
Q572
Z-3
Q591
Z-2
CL501B
BB-3
CL502B
BB-2
CN571Z-3
CONNECTORS
IC
TRANSISTORS
CRT
Ref No.Position
Q511
CC-2
Q521
CC-2
Q531
CC-2
CL501A
BB-3
CL502A
BB-2
CN505DD-2
TRANSISTORS
CONNECTORS
Y3
Y2
Z3
Z2
REC Video Signal
AA3
AA2
PB Video Signal
BB3
BB2
CC3
CC2
DD3
DD2
Y1
Z1
1-8-111-8-12
AA1
BB1
CC1
DD1
T5505SCM5
Main CBA Top View
MAIN CBA
Ref No.Position
IC001
D-4
IC201
A-3
IC202
B-3
IC301
B-4
IC401
C-3
IC551
D-2
IC601E-3
IC602
D-2
IC801
A-1
Q205
A-4
Q206
B-3
Q301
A-4
Q401
B-3
Q402
B-3
Q571
D-1
Q572
C-1
Q591
C-1
Q601
E-3
Q602
E-3
Q604
E-3
Q605
D-3
Q606
D-3
Q607
D-2
Q608
D-3
Q609
C-4
Q610
C-4
Q611
C-4
Q612
D-3
Q613
D-4
Q871
C-3
Q872
D-3
Q873
C-2
Q874
C-3
Q875
C-2
CL201
C-1
CL401
C-3
CL402
C-2
CL403
C-4
CL501B
D-1
CL502B
D-3
CN571
D-1
CN601
D-4
CN801
B-4
TP201
B-4
TP202
C-4
TP301
C-4
TP302
B-4
TP401
D-4
TP402
C-4
VR601E-2
ICS
VARIABLE RESI STOR
CONNECTORS
TEST POINTS
TRANSISTORS
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the power supply circuit
are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply
circuit to fail.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
1-8-13
WF3
TP201
CTL
WF1
TP202
RF-SW
TO SENSOR CBA
(END-SENSOR)
WF6
J271
B-OUT
TO SENSOR CBA
(START-SENSOR)
TP402
V-ENV
WF5
TP301
V-OUT
C
CL602
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
Sensor CBA Top View
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
BHB300F01014-B
WF8
TP401
TP401
A-OUT
4A/125V
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT
SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
CL100
C
B
C650
B
CL301
C613 GND
(+B Adjustment)
VR601
+B ADJ
D613 Cathode
(+B Adjustment)
R583
(H Adjustment)
1-8-14
BHB300F01014-A
BT5500F01011
Main CBA Bottom View
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
WF7
PIN 7
OF IC001
4A/125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
WF9
PIN 9
OF IC401
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT
SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
WF11
PIN 41
OF IC301
WF10
PIN 9
OF IC301
WF13
PIN 5
OF CN571
WF2
PIN 49
OF IC401
WF18
PIN 59
OF IC201
WF17
PIN 58
OF IC201
WF4
PIN 32
OF IC401
WF12
Q571
Collector
1-8-15
1-8-16
BT5500F01011
CRT CBA Top ViewCRT CBA Bottom View
CRT CBA
Ref No.Position
TRANSISTORS
Q511
Q521
Q531
CONNECTORS
CL501A
CL502A
CN505B-2
B-1
B-1
A-1
A-1
B-1
WF15
Q521
Collector
WF14
Q511
Collector
WF16
Q531
Collector
1-8-17
1-8-18
BT5500F01011
µs
1DIV: 1V 20
IC201 PIN 58
WAVEFORMS
1DIV: 1V 5ms
IC201 PIN 59
WF17
WAVEFORM NOTES
INPUT: NTSC COLOR BAR SIGNAL (WITH 1kHz AUDIO SIGNAL)
BRIGHTNESS, COLOR AND TINT CONTROLS: CENTER POSITION
CONTRAST CONTROL: APPROX 70%
VOLTAGES SHOWN ARE RANGE OF OSCILLOSCOPE SETTING.
1DIV: 10V 5ms
CN571 PIN 5
WF13
1DIV: 0.5V 0.5ms
IC401 PIN 9
WF9
WF18
µs
1DIV: 20V 20
Q511 COLLECTOR
WF14
1DIV: 2V 5ms
IC301 PIN 9
WF10
µs
1DIV: 20V 20
Q521 COLLECTOR
WF15
µs
1DIV: 1V 20
IC301 PIN41
WF11
µs
1DIV: 20V 20
Q531 COLLECTOR
WF16
µs
1DIV: 200V 20
Q571 COLLECTOR
WF12
µs
1DIV: 0.5V 20
TP301 V-OUT
WF5
1DIV: 2V 5ms
TP202 RF-SW
WF1
Upper: WF6 Lower: WF1
1DIV: 0.2V 2DIV: 5V 5ms
TP402 V-ENV
µs
1DIV: 0.2V 0.1
IC401 PIN 49
WF2
1-9-1
1DIV: 0.2V 0.5ms
IC001PIN 7
WF7
1DIV: 1V 10ms
TP201 CTL
WF3
1DIV: 0.5V 0.5ms
TP401 A-OUT
WF8
µs
1DIV: 0.25V 20
IC401 PIN 32
WF4
Z13WF
LOADING
MOTOR
M
CAPSTAN MOTOR
WIRING DIAGRAM FOR SECTION 2
(DECK MECHANISM)
PG
CYLINDER ASSEMBLY
1P-ON+12V
2P-ON+5V(2)
3C-FG
4C-F/R
5C-CONT
6FG-GND
SENSOR
7LD-CONT
8D-CONT
9D-PFG
WIRING DIAGRAM
DRUM
MOTOR
M
10M-GND
11D/L+12V
12D/L+15V
VIDEO
(R)-2 HEAD
6V(R)-2
VIDEO
(L)-2 HEAD
5V-COM
4V(L)-2
VIDEO
(L)-1 HEAD
3V(L)-1
2V-COM
1V(R)-1
VIDEO
(R)-1 HEAD
AUDIO ERASE
HEAD
6AE-H
5AE-H/FE-H
4A-COM
AUDIO HEAD
CONTROL HEAD
3A-PB/REC
2CTL(+)
1CTL(-)
FULL ERASE HEAD
AC HEAD ASSEMBLY
FE HEAD
1FE-H-GND
2FE-H
CN801
1 SPEAKER
CL802
SP801
2 SP-GND
SPEAKER
CL201
CRT CBA
BT5500F01011
CL502B
1 GND
1GND
CL502A
2 RED
2RED
3 GREEN
4 BLUE
3GREEN
4BULE
1 +160V
1+160V
CL501ACL501B
2 GND
2GND
3 HEATER
3HEATER
CL401
SENSOR CBA
(END-SENSOR)
BHB300F01014A,B
T571
FBT
SENSOR CBA
(ST-SENSOR)
BHB300F01014A,B
CL402
MAIN CBA
BT5500F01011
CL403
ANODE
FOCUS
CRT
CN505
GND
SCREEN
CN571
D.Y.
1-10-1
CN601
2
1
2
5
3
4
VD
HD
1
W601
T5505WI
Chart 1
1) SP MODE
18 RF-SW
F-AD
( Internal Signal )
SYSTEM CONTROL TIMING CHARTS
The first rise of RF-SW after a rise in F-AD signal.
C-DRIVE
PB CTL
66 C-F/R
ROLL
COMPENSATION
(DRUM SERVO)
AT
Acceleration Detection
"H""H"
"Z"
T1
ST
BL
1234
T2
Stop Detection
Slow Tracking Value
Reversal Limit Value
H-A-SW
15 ROTA
STILLSTILLFRAME ADVANCE
1-11-1T5505TI
Chart 2
2) LP/EP MODE
18 RF-SW
F-AD
( Internal Signal )
The first rise of RF-SW after a rise in F-AD signal.
C-DRIVE
PB CTL
66 C-F/R
ROLL
COMPENSATION
(DRUM SERVO)
AT
Acceleration Detection
"H""H"
"Z"
T1
ST
BL
1234
T2
Stop Detection
Slow Tracking Value
Reversal Limit Value
H-A-SW
15 ROTA
STILLSTILLFRAME ADVANCE
1-11-2T5505TI
Chart 3
DISPLAY
44
D-REC-H
D-PB-H
65
A-MUTE-H
31
P-ON
LD-CONT
DRUM
RO TATI ON
66
C-DRIVE
C-F/R
82
CL/SS
EJ
AU
RS
SF
SM
TL
FB
AL
SB
1
LD-SW
PIN NO.
1. EJECT (POWER OFF) -> CASSETTE IN (POWER ON) -> STOP(B) -> STOP(A) -> PLAY -> RS -> FS -> PLAY -> STILL/SLOW -> PLAY ->
19-NUNot Used
20-NUNot Used
21-IF-MUTEIF-MUTE Signal
22OUT REC-LED
23OUT REC-LED
IN/
OUT
AIN
B-NUNot Used
Signal
Name
P-SAFETY 2Power Supply Failure
Detection 2
P-SAFETY 3Power Supply Failure
Detection 3
FM/FMANT-H
FM/FM Antenna
Color Phase Rotary
Changeover SIgnal
Video Head Switching
Pulse
Envelope Comparator
Signal
Video Head Switching
Pulse
Recording LED Control
Signal
Recording LED Control
Signal
Function
Pin
No.Mark
24-NUNot Used
25-NUNot Used
26-FM/TV-SW FM/TV-SW Signal
27-NUNot Used
28-NUNot Used
29-NUNot Used
30-NUNot Used
31OUT P-ON-HPower On Signal at High
32-NUNot Used
42-NUNot Used
43IN CLKSELClock Select (GND)
44OUT D-REC-HDelayed Record Signal
45IN I2C-OPEN
46-GNDGND
47-NUNot Used
48-NUNot Used
49-GNDOSD GND
50-GNDGND
51-NUNot Used
52-NUNot Used
53-P-ON+5VOSD Vcc
54-HLFHLF
55IN V-HOLDVHOLD
56IN CV-INVideo Signal Input
57-GNDGND
See Electrical Parts List
for parts with this mark.
1-14-11-14-2T5505CEX
[ SRC2419 ]
V501-2
SHINWHA
TAPE SGT-730
(BLACK)
V501-1
B4
CLN551
B2
V501
B4
A1-1
B2
SHINWHA
TAPE SGT-730
(WHITE)
SCOTCH
TAPE #880
L551
V501-3
B1
B4
A1-5
SCOTCH
TAPE #880
B2
B4
L4
B2
B11
CL802
L551
CRT CBA
DG601
SCOTCH
TAPE #880
SP801
L4
Details for L551
and surrounding parts
TL3
TL1
1B1
SENSOR CBA
TL1
TB10
TB22
TB21
TB7
TB24
TB3
TL1
TL1
B3
TB2
TB24
TB9
TL1
TL3
TL1
TL1
TL2
TL1
B5
TB26
W601
TL2
TL2
B5
L1
A3
L1
L7
L7
L1
L1
A2
A1-6
A1-4
TL5
TL4
MAIN CBA
SENSOR CBA
TB1
L2
B13
A1X
A1-3
A1-2
See Electrical Parts List
for parts with this mark.
1-14-31-14-4T7505CEX
Packing
[ SRC2213W ]
X1
TAPE
X2
X3
X4
S2
X5
S6
S3
S1
S4
FRONT
1-14-5T5505PEX
[ SRC2419 ]
TAPE
X2
X3
X4
S2
X1
S14
S3
S6
FRONT
TAPE
S3
S4
S1
1-14-6T7505PEX
MECHANICAL PARTS LIST
PRODUCT SAFETY NOTE: Products marked with a #
have special characteristics important to safety. Before
replacing any of these components, read carefully the
product safety notice in this service manual. Don't
degrade the safety of the product through improper servicing.
NOTE:
Parts that are not assigned part numbers (---------) are
not available.
ROD ANTENNA L7720UA:NTSC W/COO or0EMN00673
ROD ANTENNA T5000UA0EMN01599
Note:
1. V501 (CRT) HAS COUPLE OF SUBSTITUTIONAL PARTS AND EACH PARTS
ALSO HAS MATCHING COMBINATION WITH L551.
PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION.
2. L551 (DEFLECTION YOKE) HAS MATCHING COMBINATION WITH V501.
PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION.
S1CARTON T7505UF0EM409071
S2STYROFOAM TOP ASSEMBLY T7400UA 0EM407699
8A00083
GCMP3120
Ref. No. MarkDescriptionPart No.
S3STYROFOAM BOTTOM ASSEMBLY
S4SERIAL NO. LABEL T7505UF---------S6SET SHEET B7500UA:1000X17000EM402178
S14TVCR HOLD PAD T7300UA0EM406849
T7400UA
0EM407700
ACCESSORIES
X1BAG POLYETHYLENE 235X365XT0.030EM408420
X2#OWNERS MANUAL T5505UF0EMN02407
X3REMOTE CONTROL 512/ERC001/
X4DRY BATTERY R6P UM3 orXB0M451GH001
Note:
1. V501 (CRT) HAS COUPLE OF SUBSTITUTIONAL PARTS AND EACH PARTS
ALSO HAS MATCHING COMBINATION WITH L551.
PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION.
2. L551 (DEFLECTION YOKE) HAS MATCHING COMBINATION WITH V501.
PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION.
NE138UD
DRY BATTERY R6P(AR)2PX orXB0M451HU002
DRY BATTERY R6P(AR)2P X ICI orXB0M451HU003
DRY BATTERY(SUNRISE) R6SSE/2S or XB0M451MS002
DRY BATTERY R6P/2SXB0M451T0001
Note 1: Purity and Convergence Adjustments must be
performed following CRT replacement. Refer to Electrical Adjustment Instructions.
Note 2: Please confirm CRT Type No. on the CRT
Warning Label which is located on the CRT. Then See
the Table 1 for V501 and L551 combination chart.
Please refer this CRT, Deflection Yoke combination
chart for parts order.
[ SRC2213W ]
V501: CRT Type No. V501: CRT Part No.
A48LRH93X(W)DTCRT190PTD01
CRT Warning Label Location
CRT Type No.
CRT
L551: Deflection
Yoke Pa rt N o .
LLBY00ZSY007
LLBY00ZQS005
LLBY00ZSM007
CRT Warning
Label
V501: CRT Type No. V501: CRT Part No.
A34AGT13XTCRT190CP036
A34JQQ093XTCRT190MS010
A34KQW42XTCRT190SM013
A34JLL90X(W)TCRT190QS015LLBY00ZQS001
A34LRQ90X(VW)TCRT190P7003
A34KPU02XXTCRT190GS016
A34JXV70XTCRT190THA02
L551: Deflection
Yoke Part No.
LLBY00ZSY005
LLBY00ZMS011
LLBY00ZSY002
LLBY00ZMS027
LLBY00ZMS027
LLBY00ZSY002
LLBY00ZQS008
LLBY00ZSM008
LLBY00ZQS007
LLBY00ZSY003
LLBY00ZMS004
LLBY00ZSY002
LLBY00ZMS027
LLBY00ZQS008
LLBY00ZSY002
LLBY00ZMS027
LLBY00ZQS008
[ SRC2419 ]
V501: CRT Type No. V501: CRT Part No.
A48AKH13X01 KTCRT190CP043----------
A48AKH13XTCRT190CP044LLBY00ZMS024
A48LVL095XTCRT190MS011
A48JLL90XTCRT190QS009
A48LRH93X(W)TCRT190P7002
A48LGS30XTCRT190THA01LLBY00ZTHA01
L551: Deflection
Yoke Part No.
LLBY00ZSY008
LLBY00ZMS019
LLBY00ZSY006
LLBY00ZQS004
LLBY00ZSY007
LLBY00ZQS005
LLBY00ZSM007
200403031-15-3T5505CA
ELECTRICAL PARTS LIST
PRODUCT SAFETY NOTE: Products marked with a
# have special characteristics important to safety.
Before replacing any of these compone nts, read carefully the product safety notice in this service manual.
Don't degrade the safety of the product through
improper servicing.
NOTES:
1.Par ts that are not assigned par t numbers (---------)
are not available.
2.Tolerance of Capacitors and Resistors are noted
with the following symbols.
C007CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C008ELECTROLYTIC CAP. 10µF/50V M H7CE1JMAVSL100
C032CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C033ELECTROLYTIC CAP. 470µF/10V M orCE1AMASDL471
C036CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C037CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C039ELECTROLYTIC CAP. 0.1µF/50V M H7CE1JMAVSLR10
C042CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C043CHIP CERAMIC CAP. F Z 0.022µF/50VCHD1JZB0F223
C044CERAMIC CAP.(AX) Y M 0.01µF/16VCCA1CMT0Y103
C046CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C047CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C048ELECTROLYTIC CAP. 10µF/50V M orCE1JMASDL100
Consists of the following
CAPACITORS
ELECTROLYTIC CAP. 220µF/6.3V MCE0KMASTL221
ELECTROLYTIC CAP. 470µF/10V MCE1AMASTL471
ELECTROLYTIC CAP. 10µF/50V MCE1JMASTL100
0ESA06094
0ESA06097
------------
-----------0ESA06170
------------
Ref. No. MarkDescriptionPart No.
C049CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C052CHIP CERAMIC CAP. F Z 0.047µF/50VCHD1JZB0F473
C053FILM CAP.(P) 0.018µF/50V JCA1J183MS029
C054CERAMIC CAP.(AX) Y M 0.01µF/16VCCA1CMT0Y103
C203CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C206ELECTROLYTIC CAP . 4.7µF/50V M H7CE1JMAVSL4R7
C207ELECTROLYTIC CAP .(SS .T) 47µF/25V M H7CA1E470S602 8
C208ELECTROLYTIC CAP . 47µF/6.3V M H7CE0KMA VSL 470
C210CHIP CERAMIC CAP. F Z 0.47µF/10VCHD1AZB0F474
C211CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C212CHIP CERAMIC CAP . CH J 22pF/50VCHD1JJBCH220
C213CHIP CERAMIC CAP . CH J 22pF/50VCHD1JJBCH220
C214ELECTROLYTIC CAP .(SS .T) 220µF/10V M H7CA1A221S602 8
C216CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C217CHIP CERAMIC CAP . CH D 10pF/50VCHD1JDBCH100
C218CHIP CERAMIC CAP . CH J 15pF/50VCHD1JJBCH150
C219CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C220ELECTROLYTIC CAP . 220µF/6.3V M H7CE0KMAVSL22 1
C221CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C222CHIP CERAMIC CAP. B K 2200pF/50VCHD1JKB0B222
C223CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C224CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C225CHIP CERAMIC CAP . CH J 560pF/50VCHD1JJBCH561
C231CHIP CERAMIC CAP . CH J 100pF/50VCHD1JJBCH101
C232CHIP CERAMIC CAP . CH J 100pF/50VCHD1JJBCH101
C233CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C235CHIP CERAMIC CAP. B K 4700pF/50VCHD1JKB0B472
C236CERAMIC CAP.(AX) F Z 0.047µF/16VCCA1CZTFZ47 3
C238CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C239ELECTROLYTIC CAP . 22µF/50V M orCE1JMASDL220
ELECTROLYTIC CAP . 22µF/50V MCE1JMASTL220
C240CERAMIC CAP.(AX) B J 560pF/50VCCA1JJT0B561
C241CHIP CERAMIC CAP. B K 4700pF/50VCHD1JKB0B472
C242CHIP CERAMIC CAP . CH J 100pF/50VCHD1JJBCH101
C243ELECTROLYTIC CAP . 22µF/16V M LL orCE1CMASLH220
ELECTROLYTIC CAP . 22µF/16V M LLCE1CMASLL220
C245ELECTROLYTIC CAP . 220µF/16V M orCE1CMA SDL221
ELECTROLYTIC CAP . 220µF/16V MCE1CMASTL221
C247ELECTROLYTIC CAP . 220µF/16V M orCE1CMA SDL221
ELECTROLYTIC CAP . 220µF/16V MCE1CMASTL221
C250CERAMIC CAP.(AX) F Z 0.1µF/50VCCA1JZTFZ104
C252ELECTROLYTIC CAP .(SS .T) 100µF/16V M H7CA1C101S6028
C253ELECTROLYTIC CAP . 100µF/6.3V M orCE0KMASDL101
ELECTROLYTIC CAP . 100µF/6.3V MCE0KMASTL101
C254ELECTROLYTIC CAP . 47µF/35V M orCE1GMASDL470
ELECTROLYTIC CAP . 47µF/35V MCE1GMASTL470
C257CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C265CHIP CERAMIC CAP . CH J 100pF/50VCHD1JJBCH101
C266CHIP CERAMIC CAP . CH J 100pF/50VCHD1JJBCH101
C267CERAMIC CAP.(AX) CH J 100pF/50VCA1J101TU008
C301CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C302CHIP CERAMIC CAP . CH J 33pF/50VCHD1JJBCH330
C303CHIP CERAMIC CAP . CH J 33pF/50VCHD1JJBCH330
C304CHIP CERAMIC CAP . CH J 33pF/50VCHD1JJBCH330
C309CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
200403031-16-1T5505EL
Ref. No. MarkDescriptionPart No.
C310CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C314CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C315CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C316CHIP CERAMIC CAP. F Z 2.2µF/10VCHD1AZB0F225
C317CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C319CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C320CHIP CERAMIC CAP. F Z 0.47µF/10VCHD1AZB0F474
C321ELECTROLYTIC CAP. 220µF/6.3V M H7CE0KMAVSL221
C322CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C323CHIP CERAMIC CAP. F Z 2.2µF/10VCHD1AZB0F225
C324CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C325CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C326CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C327ELECTROLYTIC CAP. 100µF/10V M H7CE1AMAVSL101
C330CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C331ELECTROLYTIC CAP.(SS.T) 220µF/10V M H7CA1A221S6028
C336ELECTROLYTIC CAP. 1µF/50V
C337CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C338CHIP CERAMIC CAP. F Z 2.2µF/10VCHD1AZB0F225
C339CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C340CHIP CERAMIC CAP. CH J 47pF/50VCHD1JJBCH470
C342ELECTROLYTIC CAP.(SS.T) 220µF/10V M H7CA1A221S6028
C351ELECTROLYTIC CAP.(SS.T) 220µF/10V M H7CA1A221S6028
C352ELECTROLYTIC CAP.(SS.T) 220µF/10V M H7CA1A221S6028
C410ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C411ELECTROLYTIC CAP. 100µF/10V M H7CE1AMAVSL101
C412CHIP CERAMIC CAP. F Z 0.01µF/50VCHD1JZB0F103
C413CHIP CERAMIC CAP. CH J 390pF/50VCHD1JJBCH391
C416CHIP CERAMIC CAP. CH J 100pF/50VCHD1JJBCH101
C417CHIP CERAMIC CAP. CH J 100pF/50VCHD1JJBCH101
C418CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C419ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C420ELECTROLYTIC CAP. 22µF/16V M H7CE1CMAVSL220
C421ELECTROLYTIC CAP. 4.7µF/50V M H7CE1JMAVSL4R7
C422ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C423ELECTROLYTIC CAP. 4.7µF/50V M H7CE1JMAVSL4R7
C424ELECTROLYTIC CAP. 0.1µF/50V M H7CE1JMAVSLR10
C425CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C426ELECTROLYTIC CAP. 22µF/16V M H7CE1CMAVSL220
C427CERAMIC CAP.(AX) B K 0.01µF/50VCA1J103TU 011
C428CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C429ELECTROLYTIC CAP. 47µF/6.3V M H7CE0KMAVSL470
C430CHIP CERAMIC CAP. B K 0.022µF/50VCHD1JKB0B223
C431ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C432ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C435ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C436CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C438CHIP CERAMIC CAP. F Z 1µF/10VCHD1AZB0F105
C439CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C441CHIP CERAMIC CAP. F Z 0.047µF/50VCHD1JZB0F473
C442CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C443CHIP CERAMIC CAP. F Z 0.047µF/50VCHD1JZB0F473
C444ELECTROLYTIC CAP. 22µF/16V M H7CE1CMAVSL220
C445CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C447CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C449CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C552FILM CAP .(P) 0.22µF/50V J orCA1J224MS029
C612AFILM CAP .(P) 0.039µF/50 V J o rCA1J393M S029
C612BFILM CAP .(P) 0.033µF/50 V J o rCA1J333M S029
C613AFILM CAP .(P) 0.001µF/50 V J o rCA1J102M S029
C613BFILM CAP .(P) 0.0012µF/50V J orCA1J122MS029
C614#AFILM CAP .(P) 0.056µF/ 50V J o rCA1J563MS02 9
#AFILM CAP.(P) 0.056µF/50V JCMA1JJS00563
C614BFILM CAP .(P) 0.082µF/50 V J o rCA1J823M S029
C615ACERAMIC CAP. 560pF/2KV orCA3D561PAN04
C615BCERAMIC CAP. 820pF/2KV orCA3D821PAN04
C616#ELECTROLYTIC CAP. 100µF/160V M W/F orCE2CMZNTL101
#ELECTROLYTIC CAP . 1 00µF/160V M orCE2CMZPDL101
#ELECTROLYTIC CAP . 1 00µF/160V MCE2CMZPTL101C617#ELECTROLYTIC CAP. 470µF/35V M orCE1GMASDL471
#ELECTROLYTIC CAP . 4 70µF/35V MCE1GMASTL471C618#ELECTROLYTIC CAP. 1000µF/ 16V M orCE1CMZPDL102
#ELECTROLYTIC CAP . 1 000µF/16V MCE1CMZPTL102C619#ELECTROLYTIC CAP. 470µF/16V M orCE1CMASDL471
#ELECTROLYTIC CAP . 4 70µF/16V MCE1CMASTL471C620#ELECTROLYTIC CAP. 1000µF/ 16V M orCE1CMZPDL102
#ELECTROLYTIC CAP . 1 000µF/16V MCE1CMZPTL102
C624CERAMIC CAP.(AX) B K 0.01µF/50VCA1J103TU 011
C625ELECTROLYTIC CAP. 3.3µF/50V M orCE1JMASDL3R3
C626ELECTROLYTIC CAP. 4.7µF/50V M H7CE1JMAVSL4R7
C627ELECTROLYTIC CAP. 47µF/35V M orCE1GMASDL470
C628ELECTROLYTIC CAP. 10µF/50V M orCE1JMASDL100
C629ELECTROLYTIC CAP. 47µF/35V M orCE1GMASDL470
C630ELECTROLYTIC CAP. 100µF/10V M orCE1AMASDL101
C631ELECTROLYTIC CAP. 220µF/6.3V M orCE0KMASDL221
C632ELECTROLYTIC CAP. 100µF/16V M orCE1CMASDL101
C633ELECTROLYTIC CAP. 47µF/35V M orCE1GMASDL470
200V or
CERAMIC CAP. RB 680pF/2K V orCA3D681TE006
CERAMIC CAP. BN 680pF/2KVCCD3DKA0B681
AFILM CAP .(P) 0.039µF/50V JCMA1JJS00393
BFILM CAP .(P) 0.033µF/50V JCMA1JJS00333
AFILM CAP .(P) 0.001µF/50V JCMA1JJS00102
BFILM CAP .(P) 0.0012µF/50V JCMA1JJS00122
BFILM CAP .(P) 0.082µF/50V JCMA1JJS00823
ACERAMIC CAP. RB 560pF/2K V orCA3D561TE006
ACERAMIC CAP . BN 560pF/2KVCCD3DKA0B561
BCERAMIC CAP RB 820pF/2KV orCA3D821TE006
BCERAMIC CAP . BN 820pF/2KVCCD3DKA0B821
AFILM CAP .(P) 0.01µF/50V JCMA1JJS00103
ELECTROLYTIC CAP. 3.3µF/50V MCE1JMASTL3R3
ELECTROLYTIC CAP. 47µF/35V MCE1GMASTL470
ELECTROLYTIC CAP. 10µF/50V MCE1JMASTL100
ELECTROLYTIC CAP. 47µF/35V MCE1GMASTL470
ELECTROLYTIC CAP. 100µF/10V MCE1AMASTL101
ELECTROLYTIC CAP. 220µF/6.3V MCE0KMASTL221
ELECTROLYTIC CAP. 100µF/16V MCE1CMASTL101
ELECTROLYTIC CAP. 47µF/35V MCE1GMASTL470
CA2D151NC088
Ref. No. MarkDescriptionPart No.
C634ELECTROLYTIC CAP . 100µF/16V M orCE1CMA SDL101
ELECTROLYTIC CAP . 100µF/16V MCE1CMASTL101
C635ELECTROLYTIC CAP . 47µF/16V M H7CE1CMAVSL470
C636CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C639CERAMIC CAP. B K 2200pF/500VCCD2JKS0B222
C648ELECTROLYTIC CAP . 22µF/16V M H7CE1CMAVSL220
C650AELECTROLYTIC CAP. 47µF/25V M orCE1EMASDL470
AELECTROL YTIC CAP. 47µF/25V MCE1EMASTL470
C801ELECTROLYTIC CAP . 220µF/16V M orCE1CMA SDL221
ELECTROLYTIC CAP . 220µF/16V MCE1CMASTL221
C802ELECTROLYTIC CAP . 470µF/16V M orCE1CMA SDL471
ELECTROLYTIC CAP . 470µF/16V MCE1CMASTL471
C803ELECTROLYTIC CAP . 22µF/16V M H7CE1CMAVSL220
C804ELECTROLYTIC CAP . 0.22µF/50V M H7CE1JMA VSLR22
C805CHIP CERAMIC CAP. B K 4700pF/50VCHD1JKB0B472
C852ELECTROLYTIC CAP . 33µF/16V M H7CE1CMAVSL330
C853CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C854ELECTROLYTIC CAP . 22µF/16V M H7CE1CMAVSL220
C856CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C858ELECTROLYTIC CAP . 4.7µF/50V M H7CE1JMAVSL4R7
C861CHIP CERAMIC CAP . CH J 820pF/50VCHD1JJBCH821
C862CHIP CERAMIC CAP. B K 0.015µF/50VCHD1JKB0B153
C863ELECTROLYTIC CAP . 4.7µF/50V M H7CE1JMAVSL4R7
C865CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C866CHIP CERAMIC CAP. B K 2700pF/50VCHD1JKB0B272
C867CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C872ELECTROLYTIC CAP . 220µF/6.3V M H7CE0KMAVSL22 1
C873ELECTROLYTIC CAP .(SS .T) 100µF/16V M H7CA1C101S6028
C874CERAMIC CAP. B K 470pF/100V orCCD2AKS0B471
CERAMIC CAP. B K 470pF/500VCCD2JKS0B471
C875FILM CAP.(P) 0.018µF/50V J orCA1J183MS029
FILM CAP.(P) 0.018µF/100V JCMA2AJS00183
CONNECTORS
CN571CONNECTOR BASE, 5P RTB-1.5-5P orJ3RTC05JG001
CONNECTOR BASE, 5P TV -50P-05-V3J3TVC05TG002
CN601CONNECTOR BASE, 2P RTB-1.5-2P orJ3RTC02JG001
CONNECTOR BASE, 2P TV -50P-02-V3J3TVC02TG002
CN801#STRAIGHT PIN HEADER, 2P 173981-2 or 1770258
#STRAIGHT CONNECTOR BASE 00 8283
IC BR24L02F-WE2QSZBA0TRM068
IC301#MICRO-COMPUTER/VCD M61275FP-61 QSZAB0RMB133
IC401IC:Y/C/A LA71205M-MPB-EQSZBA0RSY037
IC551#VERTICAL OUTPUT IC LA78040AQSBBA0SSY003
IC601#PHOT OCOUPLER LTV-817B-F orNPEB0LTV817F
#PHOTOCOUPLER LTV-817C-F orNPEC0L TV817F
#PHOTO COUPLER PC817X6QPE600PC817XIC602#VOLTA GE REGULATOR KIA7805API orNSBBA0SJY011
#VOL TAGE REGULA T OR KA7805ANSZBA0SF3052
IC801AUDIO AMP IC AN17811AQSZAA0SMS015
COILS
L001PCB JUMPER D0.6-P5.0JW5.0T
L002APCB JUMPER D 0.6 -P5. 0JW5.0 T
L031PCB JUMPER D0.6-P5.0JW5.0T
L033INDUCTOR 15µH-J-26T orLLAXJATTU150
#ACEMENT RESISTOR 5W K 1.2 ΩRW05 1R2PG0 01R602#BCEMENT RES. 5W K 1.2 Ω orRW051R2DP007
#BCEMENT RESISTOR 5W J 1.2 Ω orRW051R2PAK11
#BCEMENT RES. 5W K 1.2 ΩRW051R2PG002R603#AMETAL O XIDE FILM RES . 2W J 0.39 Ω or RN02R39DP004
#AMETAL O XIDE FILM RES. 2W J 0.39 ΩRN02R39ZU001R603#BMETAL O XIDE FILM RES . 2W J 0.27 Ω or RN02R27DP004
#BMETAL O XIDE FILM RES. 2W J 0.27 ΩRN02R27ZU001
X'T A L 3.5795 45MHz (20PPM) orFXC355LDS001
X'T A L 3.5795 45MHz (20PPM)FXC355LLN003
CRT CBA
Ref. No. MarkDescriptionPart No.
CRT CBA
Consists of the following
CAPACITORS
C501CERAMIC CAP. B K 1000pF/2KV orCA3D102MR030
CERAMIC CAP. B K 1000pF/2KV orCCD3DKD0B102
CERAMIC CAP. B K 1000pF/2KVCCD3DKP0B102
C502ELECTROLYTIC CAP . 1µF/50V M orCE1JMASDL010
ELECTROLYTIC CAP . 1µF/50V M orCE1JMASDL1R 0
ELECTROLYTIC CAP . 1µF/50V MCE1JMASTL1R0
C511ACHIP CERAMIC CAP. B K 390pF/50VCHD1JKB0B391
C511BCHIP CERAMIC CAP. B K 560pF/50VCHD1JKB0B561
C521ACHIP CERAMIC CAP. B K 390pF/50VCHD1JKB0B391
C521BCHIP CERAMIC CAP. B K 560pF/50VCHD1JKB0B561
C531ACHIP CERAMIC CAP. B K 390pF/50VCHD1JKB0B391
C531BCHIP CERAMIC CAP. B K 560pF/50VCHD1JKB0B561
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
I Deck Exploded Views
I Deck Parts List
1.Clean all parts for the tape transport (Upper Drum with Video Head / Pinch Roller / ACE Head / FE Head) using
90% lsopropyl Alcohol.
2.After cleaning the parts, do all DECK ADJUSTMENTS.
3.For the reference numbers listed above, refer to Deck Exploded Views.
Cam Holder
Cam Holder Assembly
II
II
2-1-1U29NMEN
Cleaning
Cleaning of Video Head
Clean the head with a head cleaning stick or chamois
cloth.
Procedure
1.Remove the top cabinet.
2.Put on a glove (thin type) to avoid touching the
upper and lower drum with your bare hand.
3.Put a few drops of 90% Isopropyl alcohol on the
head cleaning stick or on the chamois cloth and,
by slightly pressing it against the head tip, turn the
upper drum to the right and to the left.
Notes:
1.The video head surface is made of very hard
material, but since it is very thin, avoid cleaning it
vertically.
2.Wait for the cleaned part to dry thoroughly before
operating the unit.
3.Do not reuse a stained head cleaning stick or a
stained chamois cloth.
Cleaning of ACE Head
Clean the head with a cotton swab.
Procedure
1.Remove the top cabinet.
2.Dip the cotton swab in 90% isopropyl alcohol and
clean the ACE Head. Be careful not to damage the
upper drum and other tape running parts.
Notes:
1.Avoid cleaning the ACE Head vertically.
2.Wait for the cleaned part to dry thoroughly before
operating the unit or damage may occur.
ACE Head
Upper
Cylinder
Do Not !
Video Head
Do Not touch
with your bare
hand!
Cleaning Stick
2-1-2U29NMEN
SERVICE FIXTURE AND TOOLS
J-1-1, J-1-2
J-3
J-5
J-2
J-4
Ref. No. NamePart No.Adjustment
J-1-1Alignment TapeFL8AHead Adjustment of ACE Head
J-1-2Alignment TapeFL8N
(2 Head only)
FL8NW
(4 Head only)
J-2Guide Roller Adj. Screwdriver Available
Locally
J-3MirrorAvailable
Locally
J-4Azimuth Adj. Screwdriver +Available
Locally
J-5Flat Screwdriver -Available
Locally
2-2-1U29NFIX
Azimuth and X Value Adjustment of ACE Head /
Adjustment of Envelope Waveform
Guide Roller
Tape Transportation Check
ACE Head Height
X Value
MECHANICAL ALIGNMENT PROCEDURES
Explanation of alignment for the tape to correctly run
starts on the next page. Refer to the information below
on this page if a tape gets stuck, for example, in the
mechanism due to some electrical trouble of the unit.
Service Information
A. Method for Manual Tape Loading/Unloading
To load a cassette tape manually:
1. Disconnect the AC plug.
2. Remove the Top Case and Front Assembly.
3. Insert a cassette tape. Though the tape will not be
automatically loaded, make sure that the cassette
tape is all the way in at the inlet of the Cassette
Holder. To confirm this, lightly push the cassette
tape further in and see if the tape comes back out,
by a spring motion, just as much as you have
pushed in.
4. Turn the LDG Belt in the appropriate direction
shown in Fig. M1 for a minute or two to complete
this task.
To unload a cassette tape manually:
1. Disconnect the AC plug.
2. Remove the Top Case and Front Assembly.
3. Make sure that the Moving guide preparations are
in the Eject Position.
4. Turn the LDG Belt in the appropriate direction
shown in Fig. M1 until the Moving guide preparations come to the Eject Position. Stop turning when
the preparations begin clicking or can not be
moved further. However, the tape will be left wound
around the cylinder.
5. Turn the LDG Belt in the appropriate direction continuously, and the cassette tape will be ejected.
Allow a minute or two to complete this task.
B. Method to place the Cassette Holder in the tape-
loaded position without a cassette tape
1. Disconnect the AC Plug.
2. Remove the Top Case and Front Assembly.
3. Turn the LDG Belt in the appropriate direction
shown in Fig. M1. Release the locking tabs shown
in Fig. M1 and continue turning the LDG Belt until
the Cassette Holder comes to the tape-loaded
position. Allow a minute or two to complete this
task.
Top View
Moving guide T preparation
(Eject Position)
Moving guide S preparation
(Eject Position)
Push the tape
to load it.
Push the locking tab gently to unlock
when loading without a cassette.
UNLOAD
/EJECT
LOAD
Side View
LDG Belt
Fig. M1
Bottom View
LDG Belt (B)
UNLOAD
/EJECT
Cam Gear
Fig. M2
2-3-1Z13N4HMA
1. Tape Interchangeability Alignment
Note:
To do these alignment procedures, make sure that the
Tracking Control Circuit is set to the preset position
every time a tape is loaded or unloaded. (Refer to
page 2-3-4, procedure 1-C, step 2.)
Note: Before starting this Mechanical Alignment, do all
Electrical Adjustment procedures.
Flowchart of Alignment for tape traveling
Loading (Use a blank tape.)
Adjust the height of the Guide Rollers
(Supply side and take-up side).
(Use a blank tape.) (Page 2-3-3)
1-A
Not good
Check to see that the tape is not creasing
and that there is no slack on the supply
and take-up side Guide Rollers.
(Use a blank tape.)
Adjust the X Value for maximum envelope.
(Page 2-3-3) (Use Alignment Tape.)
Adjust the envelope. (Page 2-3-4)
Check the envelope.
OK
Adjust the Audio Section.
(Azimuth Alignment) (Page 2-3-4)
Check the audio output.
OK
Check the following:
1. X Value (Page 2-3-3)
2. Envelope (Page 2-3-4)
OK
1-A
1-B
1-C
1-C
1-D
1-D
1-B, 1-C
Not good
Not good
Not good
Do the final tape-traveling test to see that
the tape runs normally in play mode without creasing or slacking.
OK
Completion
Adjust the X value and envelope.
1-A
1-B, 1-C
2-3-2Z13N4HMA
1-A. Preliminary/Final Checking and
Alignment of Tape Path
Purpose:
To make sure that the tape path is well stabilized.
Symptom of Misalignment:
If the tape path is unstable, the tape will be damaged.
Note: Do not use an Alignment Tape for this proce-
dure. If the unit is not correctly aligned, the tape may
be damaged.
1. Playback a blank cassette tape and check to see
that the tape runs without creasing at Guide Rollers
[2] and [3], and at points A and B on the lead surface. (Refer to Fig. M3 and M4.)
2. If creasing is apparent, align the height of the guide
rollers by turning the top of Guide Rollers [2] and
[3] with a Guide Roller Adj. Screwdriver. (Refer to
Fig. M3 and M5.)
3. Check to see that the tape runs without creasing at
Take-up Guide Post [4] or without snaking between
Guide Roller [3] and ACE Head. (Fig. M3 and M5)
4. If creasing or snaking is apparent, adjust the Tilt
Adj. Screw of the ACE Head. (Fig. M6)
Azimuth Adj. Screw
ACE Head
Flat
Screwdriver
Tilt Adj. Screw
Fig. M6
Guide Roller [2]
A
Take-up Guide Post [4]
Lead Surface of Cylinder
Guide Roller [3]
B
Tape
ACE Head
Fig. M3
Fig. M4
1-B. X Value Alignment
Purpose:
To obtain maximum PB FM envelope signal at the preset position of the Tracking Control Circuit, align the
Horizontal Position of the ACE Head.
Symptom of Misalignment:
If the Horizontal Position of the ACE Head is not properly aligned, maximum PB FM envelope cannot be
obtained at the preset position of the Tracking Control
Circuit.
1. Connect the oscilloscope to TP402 (V-ENV) and
TP201 (CTL) on the Main CBA. Use TP202 (RFSW) as a trigger.
2. Playback the Gray Scale of the Alignment Tape
(FL8NW) and confirm that the PB FM signal is
present.
3. Set the Tracking Control Circuit to the preset position by pressing CH UP button on the remote control unit then “PLAY” button on the unit. (Refer to
note on bottom of page 2-3-4.)
4. Use the Flat Screwdriver so that the PB FM signal
at TP402 (V-ENV) is maximum. (Fig. M6)
Correct
Tape
Guide Roller
Incorrect
Tape
Take-up Guide
Post
Fig. M5
2-3-3Z13N4HMA
5. To shift the CTL waveform, press CH UP or CH
DOWN button on the remote control unit. Then
make sure that the maximum output position of PB
FM envelope signal become within
set position.
Good
Preset position
Maximum output position of
PB FM envelope signal
2ms
±2ms from pre-
FM envelope signal
4. If the envelope is as shown in Fig. M8, adjust the
height of Guide Roller [3] (Refer to Fig. M3) so that
the waveform looks like the one shown in Fig. M9.
5. When Guide Rollers [2] and [3] (Refer to Fig. M3)
are aligned properly, there is no envelope drop
either at the beginning or end of track as shown in
Fig. M9.
Dropping envelope level at the beginning of track.
FM envelope output signal
is adjusted at maximum.
CTL signal
No Good
FM envelope output signal is low.
Fig. M7
6. Set the Tracking Control Circuit to the preset position by pressing CH UP button on the remote control unit. and then “PLAY” button.
1-C. Checking/Adjustment of Envelope
Waveform
Purpose:
To achieve a satisfactory picture, adjust the PB FM
envelope becomes as flat as possible.
Symptom of Misalignment:
If the envelope output is poor, noise will appear in the
picture. The tracking will then lose precision and the
playback picture will be distorted by any slight variation of the Tracking Control Circuit.
1. Connect the oscilloscope to TP402 (V-ENV) on the
Main CBA. Use TP202 (RF-SW) as a trigger.
2. Playback the Gray Scale on the Alignment Tape
(FL8NW). Set the Tracking Control Circuit to the
preset position by pressing CH UP button and then
“PLAY” button on the unit. Adjust the height of
Guide Rollers [2] and [3] (Fig. M3, Page 2-3-3)
watching the oscilloscope display so that the envelope becomes as flat as possible. To do this adjustment, turn the top of the Guide Roller with the
Guide Roller Adj. Screwdriver.
3. If the envelope is as shown in Fig. M7, adjust the
height of Guide Roller [2] (Refer to Fig. M3) so that
the waveform looks like the one shown in Fig. M9.
Fig. M8
Dropping envelope level at the end of track.
Fig. M9
Envelope is adjusted properly. (No envelope drop)
Fig. M10
Note: Upon completion of the adjustment of Guide
Rollers [2] and [3] (Refer to Fig. M3), check the X
Value by pushing the CH UP or DOWN buttons alternately, to check the symmetry of the envelope. Check
the number of pushes to ensure preset position. The
number of pushes CH UP button to achieve 1/2 level of
envelope should match the number of pushes CH
DOWN button from center. If required, redo the “X
Value Alignment.”
2-3-4Z13N4HMA
1-D. Azimuth Alignment of Audio/Con-
trol/ Erase Head
Purpose:
To correct the Azimuth alignment so that the Audio/
Control/Erase Head meets tape tracks properly.
Symptom of Misalignment:
If the position of the Audio/Control/Erase Head is not
properly aligned, the Audio S/N Ratio or Frequency
Response will be poor.
1. Connect the oscilloscope to the audio output jack
on the rear side of the deck.
2. Playback the alignment tape (FL8NW) and confirm
that the audio signal output level is 8kHz.
3. Adjust Azimuth Adj. Screw so that the output level
on the AC Voltmeter or the waveform on the oscilloscope is at maximum. (Fig. M6)
2-3-5Z13N4HMA
DISASSEMBLY/ASSEMBLY PROCEDURES
OF DECK MECHANISM
Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to
CABINET DISASSEMBLY INSTRUCTIONS on page 1-5-1 of Main Section.)
All the following procedures, including those for adjustment and replacement of parts, should be done in Eject
mode; see the positions of [41] and [42] in Fig. DM1 on page 2-4-3. When reassembling, follow the steps in reverse
order.
STEP
/LOC.
[10][2]
[11][10]C Door Opener TDM1, DM8-1(S-4A), *(L-4)
[12][11]Pinch Arm (B)T
[13][12]Pinch Arm (A) Assembly T
[14][14]FE HeadTDM1, DM9(S-5)
[15][15]PrismTDM1, DM9(S-6)
[16][2],[15] Sensor GearTDM1, DM9
[17][2]Slider ShaftTDM10*(L-5)
[18][17]C Drive Lever (SP)TDM10
[19][17]C Drive Lever (TU)TDM10(S-7), *(P-4)
[34][2],[25] M Brake (TU) AssemblyTDM1, DM15*(P-7), Brake Belt
[35][2],[25] M Brake (SP) AssemblyTDM1, DM15*(P-8)
[36][35]Tension Lever AssemblyTDM1, DM15
[37][36]T Lever HolderTDM15*(L-12)
[38][34]Reel (TU)(D2)TDM1, DM15
[39][38]M GearTDM1, DM15
[40][36]Reel (SP)(D2)TDM1, DM15
[41][32],[36]
[42][33]
[43][19]TG Post AssemblyTDM1, DM16*(L-13)
[44][28]Rack AssemblyRDM17*(P-9)
[45][44]F Door Opener R DM17
[46][46]Cleaner AssemblyTDM1, DM6
[47][46]CL PostTDM6*(L-14)
ADJUSTMENT
CONDITION
(+)Refer to Alignment
Sec.Page 2-5-1
(+)Refer to Alignment
Sec.Page 2-5-1
(+)Refer to Alignment
Sec.Page 2-5-1
↓
(7)
(1): Follow steps in sequence. When reassembling, follow the steps in reverse order.
These numbers are also used as identification (location) No. of parts in the figures.
(2): Indicates the part to start disassembling with in order to disassemble the part in column (1).
(3): Name of the part
(4): Location of the part: T=Top B=Bottom R=Right L=Left
(5): Figure Number
(6): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered.
e.g., 2(L-2) = two Locking Tabs (L-2).
(7): Adjustment Information for Installation
(+):Refer to Deck Exploded Views for lubrication.
2-4-2Z13NDA
Top View
[14]
[36]
[35]
[7][8]
[42][41][43][9]
[46]
[13]
[11]
[15]
[10]
[12]
[34]
Bottom View
[26]
[27]
[23]
[28]
[20]
[29]
[30][40][16] [39][38]
Fig. DM1
[33]
[32]
[24]
[25]
[31][21][22]
Fig. DM2
2-4-3Z13NDA
(S-1)
[1]
(S-1)
Fig. DM3
A
(S-1A)
[3]
[4]
(L-1)
(L-3)
[5]
B
(L-2)
[6]
(P-1)
Installation of [3] and [6]
First, insert [6] diagonally in [3] as shown below. Then,
install [6] in [3] while pushing (L-1) in a direction of
arrow. After installing [6] in [3], confirm that pin A of [3]
enters hole A of [6] properly.
[3]
Pin D
Pin C
(S-10)
Slots B
First, while pushing the locking tab as
shown at right, slide and pull up the right
side on [2] to release Pin A and Pin B from
the slots A.
Then, remove Pin C and Pin D on [2] from
the slots B as shown.
[2]
2
Pull up
Pin A
A
1
Slide
Pin B
Slot A
Slot A
1
Hole A
[6]
2
Pin A
View for A
(L-1)
Installation of [4] and [6]
Install [6] in [4] while pulling (L-2) in a direction of
arrow. After installing [6] in [4], confirm that pin B of [4]
enters hole B of [6] properly.
[4]
View for B
Hole B
Pin B
[6]
(L-2)
Fig. DM5
Locking tab
View for A
Fig. DM4
2-4-4Z13NDA
[7]
[46]
(S-4)
[9]
[8]
Desolder
from bottom
(S-2)
View for A
Lead with
Red Stripe
A
[47]
(L-14)
Fig. DM6
A
(S-3)
(S-4A)
[13]
Removal of [11]
1) Remove screw (S-4A).
2) Unhook spring (P-2).
3) Release (L-4) while
holding [12] with a
finger.
4) Loosen a finger
holding [12] and
remove [11].
Desolder
from bottom
Lead with White Stripe
LDG
Belt
[11]
(L-4)
[8]
View for A
Fig. DM7
(P-3)
[12]
[10]
(P-2)
A
Pin of [12]
Pin of [10]
Groove of [28]
When reassembling [10] and
[12], confirm that pin of [10]
and pin of [12] are in the
[28]
groove of [28] as shown.
View for A
Fig. DM8-1
2-4-5Z13NDA
Installation of [13] and [12]
[14]
(S-5)
Hook spring (P-3) up to [12]
and [13], then install then to
the specified position so that
[12] will be floated slightly
while holding [12] and [13].
(Refer to Fig. A.)
Install pin of [12] in groove of [28].
(Refer to Fig. B.)
Groove of [28]
(P-3)
[13]
Fig. A
Pin of [12]
[28]
Fig. B (Top view)
[12]
[18]
(L-5)
[16]
(S-6)
[15]
Fig. DM9
Notch of
Hold [12] and [13] till groove of
pin of chassis looks and fit [13]
in notch of chassis. Then, turn
a few [13] while holding [12].
(Refer to Fig. C.)
Install [11] and [10] while holding [12].
(Refer to Fig. DM8-1.)
chassis
Groove of
pin of chassis
[13]
turn
[12]
Fig. C
Fig. DM8-2
[17]
[19]
(P-4)
(S-7)
Fig. DM10
2-4-6Z13NDA
A
[20]
Cap Belt
Installation position of Cap Belt
[21]Cap Belt
(S-8)
[20]
(C-2)
[23]
(P-5)
Pin on
bottom
of [23]
[22]
(L-6)
(P-5)
[28]
When installing [23], install
the spring (P-5) to [28] as
shown in the left figure, and
then install [23] while
pressing the spring (P-5) to
the direction of the arrow in
the left figure and confirming
that the position of the
spring (P-5) is placed as
shown in the left figure.
(C-1)
[21]
View for A
Fig. DM11
[23]
Top View
Pin on [22]
[28]
Position of pin on [22]
Fig. DM12
2-4-7Z13NDA
[27]
[28]
(L-10)
(S-9)
[25]
(L-8)
[26]
(L-9)
(C-4)
(C-3)
[24]
Fig. DM13-1
Position of Mode Lever when installed
Pin of [34]
Bottom View
[28]
Top View
Installation of [25]
Pin of [31]
Align [25] and [28] as shown.
First groove on [28]
Pin of [35]
First tooth on [44]
[28]
When reassembling [28],
align the first groove on
[28] to the first tooth on
[44] as shown.
[25]
[31]
(P-6)
[30]
[29]
(L-11)
Fig. DM13-2
Refer to the Alignment
Section, Page 2-5-1.
[33]
[32]
Fig. DM14
2-4-8Z13NDA
[36]
Break belt
(P-7)
(P-8)
[35]
[37]
turn
turn
[40]
(L-12)
[39]
[38]
[34]
turn
Fig. DM15
(P-9)
[45]
[44]
Slide
Fig. DM17
[41]
[42]
[43]
(L-13)
Fig. DM16
2-4-9Z13NDA
ALIGNMENT PROCEDURES OF MECHANISM
The following procedures describe how to align the
individual gears and levers that make up the tape loading/unloading mechanism. Since information about the
state of the mechanism is provided to the System
Control Circuit only through the Mode Switch, it is
essential that the correct relationship between individual gears and levers be maintained.
All alignments are to be performed with the mechanism in Eject mode, in the sequence given. Each
procedure assumes that all previous procedures have
been completed.
IMPORTANT:
If any one of these alignments is not performed
properly, even if off by only one tooth, the unit will
unload or stop and it may result in damage to the
mechanical or electrical parts.
Alignment points in Eject Position
Top View
Alignment 3
Alignment 1
Loading Arm (SP) and (TU) Assembly
Install Loading Arm (SP) and (TU) Assembly so
that their triangle marks point to each other as
shown in Fig. AL2.
Alignment 2
Mode Gear
Keeping the two triangles pointing at each other,
install the Loading Arm (SP) Assembly so that the
last tooth of the gear meets the most inside teeth
of the Mode Gear. See Fig. AL2.
Triangle Marks
Loading Arm
(SP) Assembly
Last Tooth
Alignment 2
Loading Arm
(TU) Assembly
Most inside teeth
of Mode Gear
Alignment 1
Mode Gear
Bottom View
Alignment 1
Alignment 2
Fig. AL1
Fig. AL2
Alignment 3
Cam Gear (A), Rack Assembly
Install the Rack Assembly so that the first tooth on
the gear of the Rack Assembly meets the first
groove on the Cam Gear (A) as shown in Fig. AL3.
Top View
Cam Gear (A)
Alignment 3
First tooth
First groove
on the Cam Gear (A)
Gear on Rack Assembly
Fig. AL3
2-5-1U29NAPM
DECK EXPLODED VIEWS
Deck Mechanism View 1
B2
B494
MarkDescription
Floil G-684G or Multemp MH-D
SLIDUS OIL #150
B35
(Blue grease)
B9
L1191
B73
B10
L1467
B553
B411
B567
L1053
B410
B74
L1051
Chassis Assembly
Top View (Lubricating Point)
B501
L1450
B12
B11
B571
Some Ref. Numbers are not in sequence.
B492
B37
L1450
B560
B426
B121
B126
B8
L1466
Chassis Assembly
Bottom View (Lubricating Point)
2-6-1Z13N4HDEX
Deck Mechanism View 2
B487
B508
B414
B499
B565
B587
B573
B416
B574
B564
B591
B590
B521
B520
MarkDescription
Floil G-684G or Multemp MH-D
(Blue grease)
SLIDUS OIL #150
SANKOUL FG84M (Yellow grease)
B148
B592
B522
B31
L1406
B3
B558
B557
View for A
(Grease point)
B568
A
B417
B134
B559
B516
B52
B133
B507
B593
B488
B491
B570
B502
B513
Bottom Side (Grease point)
L1151
Bottom Side
(Grease point)
B525
Some Ref. Numbers are not in sequence.
2-6-2Z13N4HDEX
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