I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded views
I Parts List
14" COLOR TV/VCR
COMBINATION
T6605VF
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
21" COLOR TV/VCR
COMBINATION
T6705VF
PAL
MAIN SECTION
14"/21" COLOR TV/VCR COMBINATION
T6605VF/T6705VF
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Par ts L ist
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. Respon se
(-20dB Ref. 1kHz)
Note: Nominal specificati ons represent the design speci fications. All units should be able to app roximate these.
Some will exceed and some may drop slightly b elow these spec ificatio ns. Limit specif ications repr esent the absolute worst conditi on that still might be c onsidered a cceptable. In no cas e should a unit fail to meet limit speci fications.
Prior to shipment from the factory , our pro ducts are strictl y insp ected for re cogni zed product safety and elec trical
codes of the countries in which they are to be sold. Howev er, in order to ma intain such c ompliance, 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 saf ety 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 ar e p rovid ed o n thi s ch ass i s
to protect both the technician and the customer.
Correctly replace all missing protective shields, including any removed for servicing convenience.
(2) When reinstalli ng the cha ssis and/o r other as sembly in the cabinet, be sure to put back in place
all protective devices, including but not lim ited to,
nonmetallic control knobs, insulating fishpapers,
adjustment and com part ment 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 no t 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 acr oss the two AC plug prongs.
Place the instrumen t AC switch in the on position.
Connect one lead of an ohmmeter to the AC plug
prongs tied together and to uch the other ohmme ter 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 meg ohm or greater than 5. 2 megohm, an abnorm ality exists that must be correct ed
before the instrument is re tur ned to the cust omer.
Repeat this test with t he 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 dur ing thi s test.) Use a leak-
age current teste r or a me tering system tha t c om plies with American National Standards Institute
(ANSI) C101.1 Leakage Current for Appliances
and Underwriters Lab oratories (UL) 1410, (50.7).
With the instrument AC switch first in the on po sition and then in the o ff position, measure from a
known earth ground (metal water pipe, conduit,
etc.) to all exposed metal par ts of the instr ument
(antennas, handle brackets, metal cabinet, scr ew
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 i n the out let
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 NO T 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 i s the prim ary potentia l source of
X-radiatio n in solid- state TV receiver s, it is s pecially constructed to prohibit X-radiation emissions.
For continued X-radiation pr otection, 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 mea su re d ea ch tim e s er vic -
1-2-1T6600SFTY
ing is performed that inv olves B+, horizontal deflection or high voltage. Correct operation of t he
X-radiation protection c ircu its a ls o m ust b e rec on firmed each time they are serviced. (X-radiation
protection circuits also may be called "horiz ontal
disable" or "hold do wn.") R ead a nd a ppl y th e hi gh
voltage limits a nd, if the chassis is so e quipped,
the X-radiation protection circuit specifications given on instrument labe ls and i n the P roduct S afety
& X-Radiation Warning note on the service data
chassis schematic. High voltage is maintained
within specified limits by close tolerance safety-related components/adjus tme nts in th e hig h-vo lta ge
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 th e receiver cabi net, 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 modificatio ns and the addition of items such as auxiliary audio and/or video
output connections, mig ht alter the safety ch aracteristics of this receiver and create a hazard to the
user. Any design alter ations or addition s will void
the manufacturer's warr anty 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 pic ture tube only with one of
the same type numbe r. Do not rem ove, install , or
otherwise handle the picture tube in any ma nner
without first putting on shatterproof goggles
equipped with side shields. People not so
equipped must be ke pt safely away while p icture
tubes are handled. Keep the picture tube away
from your body. Do not handl e the pictur e tu be b y
its neck. Some "in-line" picture tubes are equipped
with a permanently at tached 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 conduc tor of th e AC powe r cor d
and maybe safety-serviced without an isolation
transformer only i f the AC power plug i s inserted
so that the chassis is connected to the ground side
of the AC power source. To confi rm that the AC
power plug is ins erted 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 ch assis 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 so urce , for both pers onnel and
test equipment protection.
c. Some TV receiver chassis have a secondary
ground system in addition to the main chassis
ground. This se conda ry gro und s ystem is no t iso lated 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 dres s in the following areas: a.
near sharp edge s, b. near thermal ly hot parts-be
sure that leads and components do not touch thermally hot parts, c. the AC su pply, d. high volta ge,
and e. antenna wiring. Alway s inspe ct in all ar eas
for pinched, out of plac e, or frayed wiring. C heck
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 origin al specifications. Additiona lly,
determine the cause of ov erheating and/or damage and, if necess ary, take corrective action to remove any potential safety hazard.
8. Product Safety Notice - Some electrical and mechanical parts have s pecia l safety- relat ed char acteristics which are often not evident from visual
inspection, nor can the protection they give necessarily be obtained by replaci ng 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 sh ock, fire, and/or
other hazards. The Product's Safety is under review continuously and new instructions are issued
whenever appropriate . Prior to shi pment from the
factory, our products are strictly inspected to confirm with the recognized product safety and electrical codes of the countrie s in which they ar e to be
sold. However, in order to maintain such compliance, it is equal ly important to imp lement the following precautions when a set is being serviced.
1-2-2T6600SFTY
Precautions during Servicing
A. Parts identified by th e ( ! ) symbol are critical for
safety.
Replace only with part number specified.
B. In addition to safety , other parts and assemblies
are specified for confo rmanc e wit h reg ul ati ons 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 terminal s 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 tr an s fo rm e r pr im ar y le a d w i res are performed using crimp type connectors, in order to
prevent shock ha za rd s, pe rfo rm c arefully 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 dis connecting the VCR con-
nectors, first, disconnect the AC plug from AC supply socket.
1-2-3T6600SFTY
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 so ldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
AC Line VoltageClearance Distance (d), (d’)
220 to 240 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and
externally exposed accessible parts (RF terminals, antenna termina ls, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).
≥3mm(d)
≥6 mm(d’)
Chassis or Secondary Conductor
Primary Circuit Terminals
dd’
Exposed Accessible Part
Z
AC Voltmeter
(High Impedance)
Fig. 1
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
AC Line VoltageLoad ZLeakage Current (i)
2kΩ RES.
Connected in
220 to 240 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
parallel
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
i≤0.7mA AC Peak
i≤2mA DC
One side of
B
Power Cord Plug Prongs
One side of power cord plug
prongs (B) to:
RF or
Antenna terminals
A/V Input, Output
Fig. 2
1-2-4T6600SFTY
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as sho wn:
Top View
Out
2. For other ICs, pin 1 and every 5th pin is ind icated
as shown:
Pin 1
3. The 1st pi n of every pin c onnec tor are i ndicated as
shown:
Input
In
Bottom View
5
10
How to Read t he Values of th e R ect angular 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.
(Top View)
(Top View)
Pin 1
Instructions for Connectors
1. Whe n you connect or disconnect FFC cable (connector), be sure to disconnect the AC cord.
2. FFC cable (connector) should be i nserted parallel
into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
[ CBA= Circuit Board Assembly ]
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.
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.
d. Preheating
Leadless capacitor must be preheated before
installation. (130°C~150°C, for about two minutes.)
1-3-1T6600STA
1.2. Standard solder
e. Solder i ng Iron
Use a pencil-type soldering iron (less than 30
watts).
f. Solder
Eutectic solder (Tin 63%, Lead 37%) is recommended.
g. Solder i ng tim e
Do not apply heat for more than 4 seconds.
h. 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.
Notes:
a. Do not attem pt to lift the component off the boa rd
until the component is completely disconnected
from the board by the twisting action.
b. Take care not to br eak t he c opper f oi l on t he p rinte d
board
3. Installing the leadless component
a. Presolder the contact points of the circuit board.
b. Press t he par t d ownward with tweezers an d solder
both electrodes as shown below.
Note:
Do not glue the replacement leadless component to
the circuit board.
Tweezers
Chip
Soldering Iron
Tweezers
Soldering Iron
Solder
Soldering Iron
Presolder
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 PackIC.
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 par ts. Put Masking Tap e around
the Flat Pack-IC to protect other par ts 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 eac h lead of the Flat Pack - IC upward one by
one, using a shar p pin or wire to which solde r will
not adhere (iron wire). When heatin g 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)
1-3-2T6600STA
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 s older melt s 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 solder ing iron, care must be taken
to ensure that the F lat 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" mar k on the Fla t Pack - IC indicates pin 1
(See Fig. S-1-6). Ma ke sure this mar k m atches the
1 on the CBA when positioning for installation.
Then pre - solder the four corne rs 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.
Flat Pack-IC
Fine Tip
Soldering Iron
Desoldering Braid
Soldering Iron
Fig. S-1-3
Sharp
Pin
Fig. S-1-4
CBA
Fig. S-1-1
Hot-air
Flat Pack-IC
Desoldering
Machine
Hot Air Blower
or
Iron Wire
Soldering Iron
To Solid
Mounting Point
Fig. S-1-5
Example :
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-2
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
1-3-3T6600STA
Fig. S-1-6
Presolder
<Correct>
Grounding Band
1MΩ
CBA
Flat Pack-IC
CBA
Fig. S-1-7
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potential di fference caused by electrostatic charge during unpacking or repair work.
Ground for Human Body
Be sure to wear a groun ding band (1M Ω) that is properly grounded to re move any static electr ici ty that may
be charged on the body.
Ground for Work Bench
Be sure to plac e 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.
1MΩ
Conductive Sheet or
Copper Plate
<Incorrect>
CBA
1-3-4T6600STA
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 startin g to service; otherwise, the unit may
operate unexpectedly.
Preparing: 1
1. Cover Q202 (START SENSOR) and Q201 (END
SENSOR) with Insulati on Tape or enter the service
mode to activate Sensor Inhibition automatically.
Note: Avoid playing, rewinding or fast forwarding the
tape to its begin ning or end, because both Tape End
Sensors are not active.
How to Enter the Service Mode
1. Turn the power on. (Use main power on the TV
unit.)
2. Press [STANDBY/ON], [2], [7], [1], and [MUTE] buttons on the remote control unit in that order within 5
seconds. When entering the service mode, “4” will
display at corners of the screen.
3. During the service mode, electrical adjustment
mode can be selected by remote control key.
Details are as follows.
KeyAdjustment Mode
6No need to use.
7No need to use.
8
9
Caution: 2
1. The de ck mechanism assembly is mount ed 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 serv icing, this switch can not be operated automatically.
H. Shift adjustment mode: See adjustment instructions page 1-6-4.
V.size/V. shift adjustment: 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 re co rd during the Ser v ic e mo de,
press the Rec button while depressing SW211
(REC-SAFETY SW) on the Main CBA.
Q201
(END SENSOR)
Q202
(START SENSOR)
KeyAdjustment Mode
Picture adjustment mode: Press the
MENU button to change from BRT
(Bright), *CNT (Contrast), *COL
MENU
VOL-
0
1No need to use.
2
3
4
5
(Color), *TNT(Tint) and SHP(SHARP).
Press PROG+/PROG- key to adjust
Initial Value. *Marked items are not
necessary to adjust normally.
SECAM Black Level adjustment mode:
See adjustment instructions page
1-6-3.
Cut-Off adjustment mode: See adjustment instructions page 1-6-4.
White Balance adjustment mode: See
adjustment instructions page 1-6-5.
C-Trap adjustment mode: See adjustment instructions page 1-6-3.
H adjustment mode: See adjustment
instructions page 1-6-2.
Head switching point adjustment mode
(Auto adjustment): See adjustment
instructions page 1-6-7.
Auto record mode: Perform recording
(15 Sec.)-->Stop-->Rewind (Zero
return) automat ic al ly.
Head switching point adjustment mode
(Manual adjustment): See adjustment
instructions page 1-6-7.
SW211
(REC-SAFETY SW)
MAIN CBA
1-4-1T6600PFS
CABINET DISASSEMBLY INSTRUCTIONS
[ T6605VF ]
1. Disassembly Flowchart
This flowchar t indicates the disass embly steps for the
cabinet par ts, and the CBA in order to ga in access to
item(s) to be ser viced. Whe n reassembling, follow the
steps in reverse order. Bend, route and dress the
cables as they we re.
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] Power Unit and Tray Chassis Unit
[3] Power Unit[5] H.V./Power
Supply CBA
[4] Tray Chassis Unit
[6] T op Cover
[7] Bottom Plate
[8] Deck Unit
[9] Main CBA
[10] CRT
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[8]Deck Unit3, 5
[9]Main CBA34(S-9)8
[10] CRT44(S-10)9
↓
(1)
(1): Order of steps in Procedure. Whe n reassembling,
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
(5): Refer to the following "Reference Notes in the
PART
↓
(2)
follow the steps in reverse order.These numbers
are also used as the identi fication (loca tion) No. of
parts in Figures.
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connector, *=Unhook, Unlock, Release, Unplug, or Desolder
Anode Cap, *CN501,
*CN551, *CN601,
CRT CBA, Power
Knob
*CN502, *CN552,
*CN602
Note
1
2
3
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove four screws (S-1) and two screws (S-2).
Disconnect connector CN151 and remove the Rear
Cabinet.
Caution !!
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Power Unit and Tray Chassis Unit.
Discharge the Anode Lead of the CRT with the
CRT Ground before removing the Anode Cap.
Disconnect the following: Anode Cap, CN501,
CN551, CN601, CRT CBA, and Power Button.
Then pull the Power Unit and Tray Chassis Unit out
backward.
3. Removal of the Power Unit.
Disconnect connectors CN502, CN552, and
CN602. Then slide the Power Unit out.
4. Removal of the H.V./Power Supply CBA.
Remove six screws (S-3) and pull up the H.V./
Powe r Supply CBA.
5. Removal of the Top Cover.
Remove five screws (S-4) and CL604, and remove
the Top Cover.
1-5-1T6605DC
6. Removal of the Bottom Plate.
Remove a screw (S-5). Then slide the Bottom Plate
out front.
7. Removal of the Deck Unit.
Remove seven screws (S-6), screw (S-7) and
screw (S-8). Then, desolder connectors (CN201,
CL401, CL402, CL403) and lift up the Deck Unit.
(S-2)
8. Removal of the Main CBA.
Remove four screws (S-9) and pull up the Main
CBA.
9. Removal of the CRT.
Remove four screws (S-10) and pull the CRT backward.
(S-1)
[1] REAR CABINET
(S-2)
(S-1)
(S-1)
(S-1)
[1] REAR CABINET
Fig. 1
(S-2)
(S-1)
(S-2)
(S-1)
Fig. 2
1-5-2T6605DC
(S-4)
(S-4)
[4] T ray
Chassis Unit
(S-4)
(S-6)
[8] Deck Unit
(S-9)
(S-7)
(S-6)
(S-9)
(S-4)
[6] T op Cover
(S-6)
(S-6)
(S-9)
[9] Main CBA
(S-8)
A
CL604
(S-9)
Power Button
(S-3)
[2] Power Unit and
Tray Chassis Unit
(S-3)
(S-3)
(S-5)
[5] H.V./Power
Supply CBA
[7] Bottom Plate
A
[3] Power Unit
Fig. 3
1-5-3T6605DC
(S-10)
(S-10)
[10] CRT
Anode Cap
CRT CBA
(S-10)
(S-10)
Fig. 4
1-5-4T6605DC
ANODE
CRT
GND
CRT CBA
CN501B
SCREEN
CN502
H.V./POWER SUPPLY CBA
CN552
CL501A
FOCUS
CN501
CN551
MAIN CBA
CN151
CN601
TO DEGAUSS
COIL
CL403
CL401
CL402
CN201
CN602
CL302A
CL301A
CL603A
TO SPEAKER
CYLINDER
ASSEMBLY
FE HEAD
CAPSTAN
ACE HEAD
ASSEMBLY
MOTOR
TO T OP COVER
DECK UNIT
CL604
1-5-5T6605DC
Fig. 5
[ T6607VF ]
1. Disassembly Flowchart
This flowchar t indicates the disass embly steps for the
cabinet par ts, and the CBA in order to ga in access to
item(s) to be ser viced. Whe n reassembling, follow the
steps in reverse order. Bend, route and dress the
cables as they we re.
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] Power Unit and Tray Chassis Unit
[3] Power Unit[5] H.V./Power
Supply CBA
[4] Tray Chassis Unit
[6] T op Cover
[7] Bottom Plate
[8] Deck Unit
[9] Main CBA
[10] CRT
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[8]Deck Unit3, 5
[9]Main CBA34(S-9)8
[10] CRT44(S-10)9
↓
(1)
(1): Order of steps in Procedure. Whe n reassembling,
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
(5): Refer to the following "Reference Notes in the
PART
↓
(2)
follow the steps in reverse order.These numbers
are also used as the identi fication (loca tion) No. of
parts in Figures.
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connector, *=Unhook, Unlock, Release, Unplug, or Desolder
Anode Cap, *CN501,
*CN551, *CN601,
CRT CBA, Power
Knob
*CN502, *CN552,
*CN602
Note
1
2
3
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove six screws (S-1) and two screws (S-2).
Disconnect connector CN151 and remove the Rear
Cabinet.
Caution !!
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Power Unit and Tray Chassis Unit.
Discharge the Anode Lead of the CRT with the
CRT Ground before removing the Anode Cap.
Disconnect the following: Anode Cap, CN501,
CN551, CN601, CRT CBA, and Power Button.
Then pull the Power Unit and Tray Chassis Unit out
backward.
3. Removal of the Power Unit.
Disconnect connectors CN502, CN552, and
CN602. Then slide the Power Unit out.
4. Removal of the H.V./Power Supply CBA.
Remove six screws (S-3) and pull up the H.V./
Powe r Supply CBA.
5. Removal of the Top Cover.
Remove five screws (S-4) and CL604, and remove
the Top Cover.
1-5-6T6705DC
6. Removal of the Bottom Plate.
Remove a screw (S-5). Then slide the Bottom Plate
out front.
7. Removal of the Deck Unit.
Remove seven screws (S-6), screw (S-7) and
screw (S-8). Then, desolder connectors (CN201,
CL401, CL402, CL403) and lift up the Deck Unit.
8. Removal of the Main CBA.
Remove four screws (S-9) and pull up the Main
CBA.
9. Removal of the CRT.
Remove four screws (S-10) and pull the CRT backward.
(S-1)
(S-1)
(S-2)
(S-1)
(S-1)
(S-1)
(S-1)
[1] REAR CABINET
(S-2)
(S-1)
Fig. 1
(S-1)
(S-1)
(S-2)
(S-1)
(S-1)
[1] REAR CABINET
(S-1)
Fig. 2
1-5-7T6705DC
(S-4)
(S-4)
(S-4)
[4] T ray
Chassis Unit
(S-4)
(S-6)
[8] Deck Unit
(S-9)
(S-7)
(S-4)
(S-9)
(S-6)
[6] T op Cover
(S-6)
(S-6)
(S-9)
(S-8)
A
CL604
(S-9)
[9] Main CBA
Power Button
[2] Power Unit and
Tray Chassis Unit
(S-3)
(S-3)
(S-3)
(S-5)
[7] Bottom Plate
[5] H.V./Power
(S-3)
Supply CBA
[3] Power Unit
1-5-8T6705DC
A
Fig. 3
(S-10)
(S-10)
[10] CRT
Anode Cap
CRT CBA
(S-10)
(S-10)
Fig. 4
1-5-9T6705DC
ANODE
CRT
GND
CRT CBA
CN501B
SCREEN
CN502
H.V./POWER SUPPLY CBA
CN552
CL501A
FOCUS
CN501
CN551
MAIN CBA
CN151
CN601
TO DEGAUSS
COIL
CL403
CL401
CL402
CN201
CN602
CL302A
CL301A
CL603A
TO SPEAKER
CYLINDER
ASSEMBLY
FE HEAD
CAPSTAN
ACE HEAD
ASSEMBLY
MOTOR
TO T OP COVER
DECK UNIT
CL604
1-5-10T6705DC
Fig. 5
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note:
"CBA" is abbreviation for "Circuit Board
Assembly."
NOTE:
Electrical adjus tments are r equired after replacing
circuit components and certain mechanical parts.
It is impor tant to perform these adjustments only
after all repairs and repla ce men ts have been completed.
Also, do not attempt these adjustments unles s the
proper equipment is available.
Test Equipment Required
1. PAL Pattern Generator (Color Bar, Monoscope,
Black Raster, White Raster, Sympte)
10.Ext.input
FRONT VIDEO-IN JACK or REAR SCART JACK
How to set up the option code
1. Enter the Service mode.
2. Press the [STATUS] button on the remote control
unit. The option code appears on the display.
3. If neede d, inpu t the opti on co de (01 30) usin g number buttons on the remote control unit.
4. To reset the software, press [PAUSE] and [5] buttons on the remote control unit.
The option code is changed.
How to Set up the Service mode:
NOTE:
After replacing the IC2 02 (Memor y) or Main CBA,
the set value in IC202 (Me mory) wi ll be lost. S o it
is necessary to set up or adjust in the Service
mode after its replacement.
Service Mode:
1. Turn the power on. (Use main power on the TV
unit.)
2. Press [STANDBY/ON], [2], [7], [1], and [MUTE] buttons on the remote control unit in that order within 5
seconds.
-To cancel the service mode, pr ess [STANDBY/ON]
button on the remote control.
1-6-1T6605EA
[ T6605VF ]
2. H Adjustment
1. DC 105V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dar k and
1. Connect the unit to AC Power Outlet. (exact
AC230V)
2. Input a c olor bar s ignal from RF (or Ext.) inpu t and
leave it for at least 20 minutes.
3. Connect DC Volt Meter to TP503(+B) and
TP504(GND).
4. Adjust VR601 so that the voltage of TP503(+B)
becomes +105±0.5V DC.
VR601
DC Voltmeter,
Plastic Tip Driver
RF
(or Ext.)
+105±0.5V DC
Color
Bar
[ T6705VF ]
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
R590
TapeM. EQ.Spec.
---Frequency Counter 15.625kHz±250Hz
Note: R590 --- H.V./Power Supply CBA
1. Connect Frequency Counter to R590.
2. Set the unit to the Ext. mode and no input is necessary. Enter the Service mode.
(See page 1-6-1.)
3. Operate the unit for at least 20 minutes.
4. Press [2] button on the remote control unit and
select H-Adj mode.
5. Press [PROG+/PROG-] buttons on the remote control unit so that the display will change [0] to [7.]
At this moment, choos e display [0] to [7] when the
Frequency counter display is closest to
15.625kHz±250Hz.
6. Turn the power off and on again.
PROG+/PROG-
buttons
Ext.---
1. DC 114V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dar k and
1. Connect the unit to AC Power Outlet. (exact
AC230V)
2. Input a c olor bar s ignal from RF (or Ext.) inpu t and
leave it for at least 20 minutes.
3. Connect DC Volt Meter to TP503(+B) and
TP504(GND).
4. Adjust VR601 so that the voltage of TP503(+B)
becomes +114±0.5V DC.
VR601
DC Voltmeter,
Plastic Tip Driver
RF
(or Ext.)
+114±0.5V DC
Color
Bar
1-6-2T6605EA
3. C-Trap Adjustment
4. SECAM Black Level Adjustment
Purpose: To get minimum leakage of th e color signal
carrier.
Symptom of Misadjustment: If C-Trap Adjustment is
incorrect, stripes will appear on the screen.
Test pointAdj. PointModeInput
J349F3
(B-OUT)
TapeM. EQ.Spec.
---
minimum
Note: J349F3 (B-Out)--- Main CBA
1. Connect Oscilloscope to J349F3.
2. Input a color bar signal from RF (or Ext.) input.
Enter the Service mode. (See page 1-6-1.)
3. Press [0] button on the remote control unit and
select C-TRAP mode.
4. Press [PROG+/PROG-] buttons on the remote control unit so that the carrier leakage B-Out
(4.43MHz) value becomes mini mum on t he os cill oscope.
5. Turn the power off and on again.
PROG+/PROG-
buttons
Oscilloscope,
Pattern Generator
Figure
RF
(or Ext.)
200mVp-p Max.
Color Bar
Fig. 1
Purpose: To set Black Level of the SE CAM signal R-
Y/B-Y to Ref. level.
Symptom of Misadjustment: If Black Level of the
SECAM signal R-Y/B-Y is incorrect, the picture is bluish or reddish in grayscale compared with PAL signal.
Test
point
J361G4
TapeM. EQ.Spec.
---
Analog Oscilloscope (unus-
able Digital Oscilloscope)
1. Degaus s the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Input the SECAM Gray Scale signal from Ext.
input.
3. Enter the service mode. (See page 1-6-1.)
4. To enter the C/D/S mode, press [VOL-] on the
remote control unit.
5. To select SBR (SECAM Black Level R-Y), press [6]
button on the remote control unit.
6. Press [PROG+/PROG-] buttons to adjust Y signal
to the black ref. level.
7. To select SBB (SECAM Black Level B-Y), press [7]
button on the remote control unit.
8. Press [PROG+/PROG-] buttons to adjust Y signal
to the black ref. level.
Y Signal
Adj. PointModeInput
PROG+/PROG-
buttons
Pattern Generator,
Ext.
SECAM
Gray
Scale
---
1H
Black REF. Level
1H
1-6-3T6605EA
1H
5mV/Div (10:1 Prove)
Fig. 4
5. V. Size Adjustment
7. H. Shift Adjustment
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
Screen
TapeM. EQ.Spec.
---Pattern Generator90±5%
1. Enter the Service mode. (See page 1-6-1.)
Press [9] button on the remote control unit and
select V-S mode. (Press [9] button then dis play will
change to V-P and V-S).
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [PROG+/PROG-] buttons on the remote control unit so that the monoscope pattern is 90±5% of
display size and the circle is round.
PROG+/PROG-
buttons
RF
(or Ext.)
Monoscope
6. V. Shift Adjustment
Purpose: To obtain cor rect vertic al position of screen
image.
Symptom of Misadjustment: If V. position is incor-
rect, vertica l position of image on the screen may not
be properly displayed.
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
Screen
TapeM. EQ.Spec.
---Pattern Generator90±5%
1. Enter the Service mode. (See page 1-6-1.)
Press [8] button on the remote control unit and
select H-P mode.
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [PROG+/PROG-] buttons on the remote control unit so that the left and r ight side of the monoscope pattern are equal to each other.
4. Turn the power off and on again.
PROG+/PROG-
buttons
RF
(or Ext.)
Monoscope
8. Cut-off Adjustment
Purpose: To adjust the beam c urrent of R, G, B, and
screen voltage.
Symptom of Misadjustment: White color may be
reddish, greenish or bluish.
Test pointAdj. PointModeInput
Test pointAdj. PointModeInput
Screen
TapeM. EQ.Spec.
---Pattern Generator90±5%
1. Enter the Service mode. (See page 1-6-1.)
Press [9] button on the remote control unit and
select V-P mode. (Press [9] button then dis play will
change to V-P and V-S).
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [PROG+/PROG-] buttons on the remote control unit so that the top and bottom of the monoscope pattern are equal to each other.
PROG+/PROG-
buttons
RF
(or Ext.)
Monoscope
Screen-Control,
Screen
TapeM. EQ.Spec.
---Pattern Generator
Notes:
Screen Control (FBT) --- H.V./Power Supply CBA
FBT= Fly Back Transformer
Use the Remote Control Unit
1. Degaus s the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Set the s creen control to minimum position. Inp ut
the Black raster signal from RF (or Ext.) input.
3. Enter the service mode. (See page 1-6-1.)
Dimmed horizontal line appears on the CRT.
4. To enter the C/D/S mode, press the [VOL-] button
on the remote control unit.
5. To enter the CUT OFF (R) mode, press [1] button
on the remote control unit.
6. Turn the screen control up u ntil dimmed ho rizontal
line appears.
PROG+/PROG-
buttons
RF
(or Ext.)
Black Ras-
See Reference
Notes below
ter
1-6-4T6605EA
7. Press t he [PROG+/PROG-] buttons until the horizontal line becomes white.
8. To enter the CUT OFF (G) mode, press [2] button
on the remote control unit.
9. Press t he [PROG+/PROG-] buttons until the horizontal line becomes white.
10.To enter the CUT OFF (B) mode, press [3] button
on the remote control unit.
11.Press the [PROG+/PROG-] buttons until the horizontal line becomes white.
12.Turn the sc reen control so that the hori zontal line
adjusted white looks lightly.
13.Turn the power off and on again.
9. White Balance Adjustment
Purpose: To mix red, green and blue beams corr ectly
for pure white.
Symptom of Misadjustment: White becomes bluish
or reddish.
Test pointAdj. PointModeInput
Screen-Control,
Screen
TapeM. EQ.Spec.
---
PROG+/PROG-
buttons
Pattern Generator,
Color analyzer
Figure
RF
(or Ext.)
See below
White
Raster
(APL 100%)
Color Ajalyzer
Note: Use remote control unit
1. Operate the unit more than 20 minutes.
2. Face the unit to east. D ega uss the CRT using Degaussing Coil.
3. Input the White Raster (APL 100%).
4. Set the color analyze r to the CHROM A mode and
after zero point calibration, bring the optical receptor to the center on the tube surface (CRT).
5. Enter t he Service mode. Press [VOL-] button on
the remote control.
6. Press [4] button on the remote cont rol unit for Red
adjustment. Pre ss [5] button on the remote con trol
unit for Blue adjust me nt .
7. In each color mode, Press [PROG +/PROG-] buttons to adjust the values of color.
8. Adjust ing Red and Bl ue co lo r so that the tem per ature becomes 8500K (x : 290 / y : 300) ±3%.
9. At this time, Re-check that Horizontal line is white.
If not, Re-adjust Cut-off Adju stment until th e Horizontal Line becomes pure white.
10. Turn off and on a gain to return to normal mode. Receive APL 100% white signal and Check Chroma
temperatures become 8500K (x : 290 / y : 300) ±3%.
Note: Confirm that Cut Off Adj. is correct after this
adjustment, and att empt Cu t Off Adj. if ne eded.
Fig. 5
1-6-5T6605EA
10. Sub-Brightness 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
Screen
TapeM. EQ.Spec.
---
White
Note: Bar (A) in Fig. 7 --- 0 IRE
1. Enter the service mode. (See page 1-6-1.)
Then input SYMP TE signal from RF (or Ext.) i nput
and leave it for at least 20 minutes.
2. Press [M ENU] button. (Each time [MENU] button is
pressed, display will chan ge BRT, CN T, COL, TN T,
and SHP in that order.) Select BRT and press
[PROG+/PROG-] buttons so that the bar (A) in Fig.
6 is just visible.
3. Turn the power off and on again.
PROG+/PROG-
buttons
Pattern
Generator
Figure
RF
(or Ext.)
See below
ABC
SYMPTE
Black
This bar
(A) just
visible
Fig. 6
11. Setting for CONTRAST,
COLOR, TINT and SHARP
Data Values
General
1. Enter the Service mode. (See page 1-6-1)
2. Press [MENU] button. (Each time [MENU] button is
pressed, display will change BRT, CNT , COL, TNT,
and SHP in that order.)
CONTRAST (CNT)
1. Press [MENU] button on t he remote control unit.
Then select CNT display.
2. Press [PROG+/PROG-] buttons on the remote
control unit so that the value of "CONTRAST"
(CNT) becomes 83.
COLOR (COL)
1. Press [MENU] button on t he remote control unit.
Then select "COLOR" (COL) display.
2. Press [PROG+/PROG-] buttons on the remote
control unit so that the value of "COLOR " (COL)
becomes 65.
TINT (TNT)
1. Press [MENU] button on t he remote control unit.
Then select "TINT" (TNT) display.
2. Press [PROG+/PROG-] buttons on the remote
control unit so that the va lue of "TINT" (TNT) becomes 68.
SHARP (SHP)
[ T6605VF ]
1. Press [MENU] button on t he remote control unit.
Then select "SHARP" (SHP) display.
2. Press [PROG+/PROG-] buttons on the remote
control unit and select "1."
[ T6705VF ]
1. Press [MENU] button on t he remote control unit.
Then select "SHARP" (SHP) display.
2. Press [PROG+/PROG-] buttons on the remote
control unit and select "0."
1-6-6T6605EA
12. Focus Adjustment
13. Head Switching Position Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjus tment is
incorrect, blurred images are shown on the display.
2. Face the unit to the East and degauss the CRT
using a Degaussing Coil.
3. Input the monoscope pattern.
4. Adjust the F o cu s Co nt ro l on th e F B T t o ob t a in cl ear
picture.
RF
(or Ext.)
Monoscope
Purpose: Determine the Head Switching Position during Playback.
Symptom of Misadjustment: May cause Head
Switching Noise or Vertical Jitter in the picture.
Note: Unit reads Head Switching Position automatically and displays it on the screen (Upper Left Corner).
Manual Adjustme nt
1. Enter the service mode. (See page 1-6-1.)
2. Playback the test tape (FL6A).
3. Press the number [5] button on the remote control
unit.
4. The Head Switching position will display on the
screen; if adjustment is necessary follow step 4.
7.0H (448µs) is preferable.
5. Press [PROG+/PROG-] buttons on the remote control unit if necessar y. T he value will be changed in
0.5H steps up or down. Adjusta ble range is up to
9.5H. If the value is beyond adjustable range, the
display will change as:
Lower out of range: 0.0H
Upper out of range: -.-H
6. Turn the power off and on again.
Auto Adjustment
1. Load the test tape (FL6A) that have been recorded
the Head Switching Position Value.
2. Enter the service mode.
3. Press [3] button on the remote control unit in the
tape stop mode. The uni t playback and adjust the
Head Switching Position automatically.
4. The adjusting report app ears on upper left cor ner
of the screen with blueback.
In case of adjusting cor rectly: the Head Switching
Position Val ue recorded in the test tape (FL6A) is
indicated with green.
In case of ad justing incorrectly: "NG" (red) is in dicated with ejecting tape.
l
TVCRTVCR
7.0H
NG
Correct
1-6-7T6605EA
Incorrect
Fig. 7
BLOCK DIAGRAMS
Servo/System Control Block Diagram
TO POWER
SUPPLY BLOCK
TO
TV BLOCK
TO
AUDIO BLOCK
TO
VIDEO BLOCK
KEY SWITCH
KEY SWITCH
SW206 SW210
SW201 SW205
8
7
KEY-2
KEY-1
RS201
D201
REMOTE
14
REMOTE
S-LED
SENSOR
WF3
TP001
IC201
(SERVO/SYSTEM CONTROL)
AL+5V
P-ON-H
P-DOWN-L
D202 REC
85
67
P-ON-H
P-DOWN-L
CTL AMP-OUT
CTL(-)
CTL(+)
94
95
97
CTL
AL+5V
D204 STANDBY
24
23
REC-LED
REC-LED
AL+5V
LD-SW
SW212
LD-SW9
(MEMORY)
SCL
IC202
6
71
SCL
ST-SENS.
10480
SDA
CS7
5
72
45
SDA
C-OPEN
2
I
T-REEL
END-SENS.
SCL
T-REEL
SDA
C-OPEN
2
I
Q204
SCL
RESET
34
RESET
TIMER+5V
SDA
SP-MUTE
A-MUTE-H
20
44
SP-MUTE
A-MUTE-H
EXT-L
SCART-H
424829
EXT-L
SCART-H
SCART-MUTE
SW211
31
REC-SAFETY
SCART-MUTE
C-FG
87
CM+12V
P-ON+5V(3)
1CM+12V
2P-ON+5V(3)
3C-FG
CN201
REC
C-F/R
78
4C-F/R
SCL
SDA
SAFETY
C-CONT
76
5
LD-CONT81D-CONT
6FG-GND
7LD-CONT
D-REC-H
D-PFG
77
90
8D-CONT
9
C-SYNC
DV-SYNC
74
47
C-SYNC
D-REC-H
AL+12V(1)
10M-GND
11AL+12V(1)
V-ENV
C-ROTA
6
15
13
V-ENV
C-ROTA
DV-SYNC
+33V
12VG
RF-SW
18
RF-SW
MAIN CBA
)
ASSEMBLY
(DECK
CL402
2CTL(+)
1CTL(-)
AC HEAD ASSEMBLY
CONTROL
HEAD
END-SENS.
ST-SENS.
Q202Q205Q201
SENSOR CBA
(END-SENSOR)
SENSOR CBA
(ST-SENSOR)
1-7-1
C-CONT
M
CAPSTAN
PG
SENSOR
MOTOR
M
DRUM
MOTOR
CAPSTAN MOTOR
CYLINDER ASSEMBLY
D-PFG
M
LOADING
MOTOR
T6605BLS
Video Block Diagram
VIDEO (L)
HEAD
VIDEO (R)
HEAD
CYLINDER ASSEMBLY
(DECK ASSEMBLY)
123
V(L)
V(R)
CL401
V-COM
969593
94
WF1
RF-SW
TP002
RF-SW
D-REC-H
80
C-ROTA
70
TO SERVO/SYSTEM
CONTROL BLOCK
V-ENV
C-SYNC
DV-SYNC
67
84
62
SP
HEAD
AMP
SERIAL
DECORDER
Y. DELAY
P
R
LUMINANCE
SIGNAL
PROCESS
7978
REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC
69684643
SDA
SCL
65
TO
SERVO/SYSTEM
CONTROL BLOCK
IC401
(VIDEO/AUDIO SIGNAL PROCESS)
WF4
AGC
BYPASS
TUNER
SCART
485254
LINE
CHARA.
SCART
56
Y
INS.
LINE
REC FM
AGC
+
C
CCD 1H DELAY
CHROMINANCE
1/2
MUTE
PB/EE
TUNER
D-REC-H
RPRP
SIGNAL
PROCESS
MUTE
PB/EE
V-ENV
DV-SYNC
RF-SW/C-ROTA
Y/C
MIX
PR
FBC
C-SYNC
AGCVXO
61
21
2928
5859
63
WF2
TP008
X401
WF6
C-PB
4.43MHz
C-VIDEO
TO
MAIN CBA
TV BLOCK
TU001
17
VIDEO OUT
JK701
V-IN
JK703
20
V-IN
19
V-OUT
1-7-2
BUFFER
Q703
WF5
TP003
Q401
V-OUT
TU-VIDEO
TO
TV BLOCK
BUFFER
VIDEO
GND
TP010
T6605BLV
Audio Block Diagram
A
B
SP151
SPEAKER
ModelMark
T6605VF
T6705VF
Comparison Chart of
Models & Marks
CL801
A
CN804
SP1SP-GND2
5
Mode : SP/REC
JK151
HEADPHONE JACK
1
AMP
OUTPUT
MUTE
B
CN151
SP2SP-GND1
TO
SERVO/SYSTEM
SP-MUTE
CONTROL BLOCK
ALC
WF8
N-A-PB
TP007
11
12
TO
SERVO/SYSTEM
CONTROL BLOCK
DET
INV
LINE
R
MUTE
AMP
ALC
ATT
98
SERIAL
DECODER
AUDIO HD-SW
71
68 69
16
CONTROL
REC-ON
P
REC
AMP
100
SCL
SDA
A-MUTE-H
IC151 (AMP)
MAIN CBA
PB-AUDIO SIGNALREC-AUDIO SIGNAL
(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
TUNER
IC301
52
WF7
7
50
ATT
LINE
53
AUDI O
MUTE
54
IC701 (SW)
WF9
7
EQ
AMP
SP/LP-ON
13
LINE
17
SW CTL
PB-ON
10119
5
6
+5V
Q854
TO SERVO
/SYSTEM
CONTROL
BLOCK
EXT-L
SCART-H
SCART-MUTE
TUNER
IC401
(AUDIO SIGNAL PROCESS)
4
14
SCART
LINE
SCART
LINE
1
2155
3
12
CL402
3 A-PB/REC
AUTO
1
Q855
3
BIAS
2
BIAS
4 A-COM
OSC
6 AE-H
5 AE-H/FE-H
Q856
Q853(PB=ON)
+5V
SWITCHING
D-REC-OFF
Q851
CL403
1 FE-H
Q852(PB=ON)
2 FE-H-GND
TU001
6
AUDIO OUT
JK702
A-IN
JK703
2
A-IN
1
A-OUT
1-7-3
Q701
AUDI O
HEAD
AUDI O
ERASE
HEAD
(DECK ASSEMBLY)
FE HEAD
ACE HEAD ASSEMBLY
FULL
ERASE
HEAD
T6605BLA
TV Block Diagram
Mode : SP/REC
REC VIDEO SIGNALPB VIDEO SIGNAL
TO
VIDEO
34
LINE/PB
VIDEO BLOCK
TU-VIDEO
36
TUNER
LINE/PB
TUNER
X301
4.43MHz
32
CLOCK
CONTROL
CIRCUIT
CHROMA
BPF
SECAM
DECODER
PAL
DECODER
BASE BAND
1H DELAY LINE
TO
BLUE2
CL301A
16
CRT/H.V. BLOCK
CL301B
GREEN1
RED
3
143115
CL302A
WF11
FBP2
6
TO
CRT/H.V. BLOCK
H-DRIVE1
7
CL302B
ACL5
V-RAMP-FB4
V-DRIVE3
SERIAL
I/F
IC301 (VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
11
10
MAIN CBA
INTELLIGENT
MONITORING
43
SYNC
SEPARATION
Q711
+5V
CHROMA
TRAP
Q706
LUMA
SIGNAL
PROCESS
Q704
Q702
CIRCUIT
IC703 (SW)
+5V
OSD MIX/RBG MATRIX/
BLANKING
H-SYNC
PROCESS
CIRCUIT
INV
V-SYNC
PROCESS
CIRCUIT
21
17
15
14
SW CTL
5
342
1
12
13
10911
27
Q710
30
28
20
63
64
82
12
13
WF10
616568
59
60
62
58
1
CN303
C-OPEN2
2
INT.MONITOR
I
SDA4
SCL5
(NO CONNECTION)
CN303 is used for
adjustment at factory
C-OPEN
2
I
TO
SERVO/SYSTEM
SCL
SDA
CONTROL BLOCK
1-7-4
JK703
SLOW-SW
7
16811
OSD-B
RAPID-SW
OSD-G
15
OSD-R
IC201
(SYSTEM CONTROL/OSD)
OSD-R
TEXT-L
C-VIDEO
56
C-VIDEO
TO
VIDEO
BLOCK
OSD-B
OSD-G
OSD-BLK
SLOW-SW-IN
V-SYNC
RGB-CONT
RAPID-SW-IN
WF18
H-SYNC
WF17
T6605BLT
CRT/H.V. Block Diagram
A
B
ModelMark
T6605VF
T6705VF
Comparison Chart of
Models & Marks
Mode : SP/REC
DEFLECTION-YOKE
WF13
V-
DRIVEH-DRIVE
543
BA
1
CN551
ANODE
JK501
FOCUS
SCREEN
GND
V501
CRT
RGB
HEATER
WF16
GND
CN501
REC VIDEO SIGNALPB VIDEO SIGNAL
IC551 (V-DEFLECTION CONTROL)
THERMAL
PROTECTION
7
5
AMP
WF15WF14
Q501
Q502
RED AMP
BLUE AMP
Q503
GREEN AMP
CRT CBA
CL501BCL501A
2
VCC
UP
T552
Q551
H.OUTPUT
3
6
PUMP
1
ANODE
FOCUS VR
F
HV
T551 F.B.T.
S
11
1
FOCUS
SCREEN
SCREEN VR
810796
5
3
HEATER11
P-ON+160V33
4
WF12
Q533
H.DRIVE
CN552
33V-DRIVE
11H-DRIVE
22FBP
55ACL
44V-RAMP-FB
H.V./POWER SUPPLY CBA
+B
DEF+B
TO
POWER SUPPLY
BLOCK
CN302CL302B
JUNCTION-B
CBA
125
TO TV
4
BLOCK
CL302A
3
1-7-5
CN502
32RED
CN301CL301B
321
TO TV
14GREEN
23BLUE
BLOCK
CL301A
JUNCTION-C
CBA
T6605BLCRT
Power Supply Block Diagram
A
B
ModelMark
T6605VF
T6705VF
Comparison Chart of
Models & Marks
TO
CRT/H.V.
BLOCK
+B
DEF+B
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
P-DOWN-L
(TO PIN85 OF IC201)
CM+12V
Q206
AL+33V
AL+9V
TIMER+5V
8
CL603A
11
8
11
CL603BCN603
8
11
AL+9V
AL+33V
8
11
CN602
AL+12V(1)
AL+12V(2)
AL+5V
7
546
3
7
546
3
7
546
3
AL+12V(2)
AL+5V
AL+12V(1)3
7
546
P-ON+8V
P-ON-H
(TO PIN67 OF IC201)
IC681
Q682
12
12
12
P-ON+8V
P-ON-L
P-DOWN-L
12
P-ON+5V(3)
P-ON+5V(2)
+5V
REG.
+5V
REG.
Q684
JUNCTION-A
CBA
Q686
+5V
P-ON+5V(1)
REG.
IC301
3955
P-ON-ON
+5.7V
REG.
CL604
TOP
MAIN CBA
COVER
GND
TP504
+B
TP503
14
13
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T4A/250V FUSE.
T601
6
HOTCOLD
BRIDGE
RECTIFIER
D601 - D604
B
L602
LINE
FILTER
A
J603A2
J604A2
+8V REG.
Q607
Q606
+5V REG.
Q605
+B ADJ.
IC601
ERROR
VR601
Q604
VOLTAGE DET
FEED
H.V./POWER SUPPLY CBA
BACK
Q608
9
12
11
10
4
2
8
1
LIMITER
Q603
41
32
L601
F601
A
B
POWER
SW601
SW602
CAUTION !
Fixed voltage 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.
LINE
FILTER
T4A/250V
W601
PS602
CN601
DG601
DEGAUSSING
COIL
Q602
SWITCHING
1-7-6
T6605BLP
MECHANICAL TROUBLE INDICATOR
1, Each Malfunction Indication
If the MONITOR is turned O N right after the M echanical Malfunction occurs or POWER SAFETY/X-RAY is
turned ON, display the following character to show
Malfunction after the EJECT display.
1) POWER SAFETY 1
If P-SAFETY 1 por t beco mes continuous ly 2.5V or
less for 120 msec. (4 times 40 msec. interval) when
MONITOR is ON, the unit shall be assumed to be
the Power Malfunction 1 and immediately turn OFF
the POWER/MONITOR and switch over 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).
* However the POWER SAFETY 1 function shall be
disabled during 500 msec. right after the MONITOR turns ON.
2) POWER SAFETY 2
If P-SAFETY 2 por t beco mes continuous ly 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.
(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. r ight after the P-ON-H
port turns ON.
X-RAY protect
If X-RAY port becom es continuously 2.5V or mor e for
120 msec. (4 time s 40 msec. interval), the unit shall
immediately turn OFF the POWER/MONITOR and
switch over to the Mechanical Malfunctio n mode with
POWER OFF.
(To retur n from this mode shall become possible only
by POWER Key as in the case of the Mec hani cal Malfunction).
1-7-7T6550MTI
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 a fter a lapse
of 7 sec. at SP, 14 sec. at LP, or more in the REEL
Rotation Mode like PLAY/REC, FS/RS Mode, and
the T-REEL or S-RE EL pu lse is n ot impres s afte r a
lapse of 4 sec. or mor e in REEL Rotation M ode 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 Malf unction. (T-REEL and S-REEL 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 ter mi-
nal.
If the variation of D-FG in put 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 n ot go to the established position
after a lapse of 7 sec. o r 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-S W Position Malfunction at each mode
When the unit operates at each mode, eve n if the
LD-SW position c hanges 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 positio n 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 s ec. or mo re from th e CASSET TE
OUT operation star t, 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/E ND Sensor
shall be disabled).
b) CASSETTE OUT operating Malfu nc tio n
After a lapse of 5 sec. or more from CASSETTE
OUT operation star t, 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/E ND 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) Wh en POWER is turned ON, if the C L 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 CASSET TE 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)
1-7-8T6550MTI
SCHEMATIC DIAG RAMS / 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 par ts 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 replacemen t par ts that
do not have the same safety characteristi cs as specified in the par ts list may create shock, fire, or other
hazards.
Capacitor Temperature Markings
Mark
Capacity
change rate
Standard
temperature
Temperature
range
Note:
1. Do not use the par t number shown on th ese 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 r esi st ance values are indicated in ohms (K=10
6
M=10
).
3. Resistor wattages are 1/4W or 1/6W unless othe rwise specified.
4. All capacitance values are indicated in µF
-6
(P=10
5. All voltages are DC voltages unless otherwise
specified.
µF).
3
,
(B)
(F)+30 -80%20°C-25~+85°C
(SR)
(Z)+30 -80%20°C-10~+70°C
Capacitors and transistors are r epresented by the following symbols.
±10%
±15%
20°C-25~+85°C
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
(Top View)
PNP Transistor
Schematic Diagram Symbols
Digital Transistor
E C B
(Top View)
E C B
NPN Digital Transistor
E C B
(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 A GAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (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 suppl y. Otherwise it may cau se some components in the
power supply circuit to fail.
3. Note:
(1)D o not use the par t number shown on the drawings for ordering. The correc t 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. Mode: SP/REC
6. 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
7. 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".
8. Test Point Information
5.0
231
5.0
(2.5)
Indicates that the voltage
is not consistent here.
Unit: Volts
1-B1
AREA B1
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.
1-8-2SC_2
Main 1/5 Schematic Diagram
1-8-3
1-8-4
T6605SCM1
Main 2/5 Schematic Diagram
1-8-5
1-8-6
T6605SCM2
Main 3/5 Schematic Diagram
Comparison Chart of
MODELMARK
T6605VFA
T6705VFB
Models and Marks
1-8-7
1-8-8
T6605SCM3
Main 4/5 Schematic Diagram
Comparison Chart of
MODELMARK
T6605VFA
T6705VFB
Models and Marks
1-8-91-8-10
T6605SCM4
Main 5/5 Schematic Diagram
Comparison Chart of
MODELMARK
T6605VFA
T6705VFB
Models and Marks
1-8-11
1-8-12
T6605SCM5
H.V./Power Supply 1/2 Schematic Diagram
Ref. No.
IC601
Ref. No.
Q602
Ref. No.
Q603
Q604
Q605
Q606
Q607
Q608
1234
1.2
0
5.5
0.10.7
12.0
10.3
9.7
9.6
6.5
7.36.7
10.3
5.9
1.2
ECB
00.21.8
SDG
1.80304.0
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.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
Comparison Chart of
Models and Marks
MODELMARK
T6605VFA
T6705VFB
1-8-13
1-8-14
VOLTAGE CHART (Power off mode)
13.112.10.21.6
T6605SCP1
H.V./Power Supply 2/2 Schematic Diagram
Comparison Chart of
MODELMARK
T6605VFA
T6705VFB
Models and Marks
1-8-151-8-16
T6605SCP2
CRT Schematic Diagram
Comparison Chart of
MODELMARK
T6605VFA
T6705VFB
Models and Marks
1-8-17
1-8-18T6605SCCRT
Main CBA Top View
TO SENSOR CBA
(END-SENSOR)
Sensor CBA Top View
BHF300F01011-A
BHF300F01011-B
J361G4
(SECAM Black Level
Adjustment)
WF8
TP007
N-A-PB
WF1
TP002
RF-SW
WF3
TP001
CTL
WF6
TP008
C-PB
J349F3
(C-Trap Adjustment)
WF5
TP003
V-OUT
1-8-19
TO SENSOR CBA
(START-SENSOR)
1-8-20
BT6600F01012
Main CBA Bottom View
WF9
PIN 8
OF IC401
WF2
PIN 29
OF IC401
WF4
PIN 48
OF IC401
WF17
PIN 58
OF IC201
WF18
PIN 59
OF IC201
WF7
PIN 52
OF IC301
WF11
PIN 7
OF IC301
WF10
PIN 13
OF IC301
1-8-21
1-8-22
BT6600F01012
H.V./Power Supply CBA Top 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.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
R590
(H Adjustment)
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.
TP503
+B
TP504
GND
VR601
+B ADJ
1-8-23
1-8-24
BT6600F01022-A
H.V./Power Supply 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.
WF12
Q551
Collector
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
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.
WF13
PIN 5
OF CN551
1-8-25
1-8-26
BT6600F01022-A
CRT CBA Top ViewCRT CBA Bottom View
WF14
Q501
Collector
WF16
Q503
Collector
WF15
Q502
Collector
1-8-27
1-8-28
BT6600F01022-B
Junction-A CBA Top View
Junction-A CBA Bottom View
Junction-B CBA Top ViewJunction-B CBA Bottom View
Junction-C CBA Top ViewJunction-C CBA Bottom View
BT6600F01012
1-8-29
1-8-30
µs
1DIV: 1V 20
IC201 PIN 58
WAVEFORMS
1DIV: 1V 5ms
IC201 PIN 59
WAVEFORM NOTES
INPUT: COLOR BAR SIGNAL
OTHER CONTROLS: CENTER POSITION
VOLTAGES SHOWN ARE RANGE OF
OSCILLOSCOPE SETTING
WF17
1DIV: 10V 5ms
CN551 PIN 5
WF13
1DIV: 0.5V 0.5ms
IC401 PIN 8
WF9
WF18
µs
1DIV: 20V 20
Q501 COLLECTOR
WF14
1DIV: 2V 5ms
IC301 PIN 13
WF10
µs
1DIV: 20V 20
Q502 COLLECTOR
WF15
µs
1DIV: 1V 20
IC301 PIN7
WF11
µs
1DIV: 20V 20
Q503 COLLECTOR
WF16
µs
1DIV: 200V 20
Q551 COLLECTOR
WF12
µs
1DIV: 0.5V 20
TP003 V-OUT
WF5
1DIV: 2V 5ms
TP002 RF-SW
WF1
1DIV: 0.2V 2DIV: 5V 5ms
TP008 C-PB
Upper: WF6 Lower: WF1
µs
1DIV: 0.2V 0.1
IC401 PIN 29
WF2
1-9-1
1DIV: 0.2V 0.5ms
IC301 PIN 52
WF7
1DIV: 1V 10ms
TP001 CTL
WF3
1DIV: 0.5V 0.5ms
TP007 N-A-PB
WF8
µs
1DIV: 0.25V 20
IC401 PIN 48
WF4
Z13PWF
A
B
ModelMark
T6605VF
T6705VF
Comparison Chart of
Models & Marks
SP151
SPEAKER
CL801
2
1
WIRING DIAGRAM
DRUM
MOTOR
VIDEO
(R)
HEAD
VIDEO
(L)
HEAD
AUDIO HEAD
CONTROL HEAD
AUDIO ERASE
HEAD
AC HEAD ASSEMBLY
3
2
1
FULL ERASE HEAD
FE HEAD
SENSOR
M
LOADING
MOTOR
PG
CYLINDER ASSEMBLY
M
CAPSTAN MOTOR
WIRING DIAGRAM FOR SECTION 2 (DECK MECHANISM)
1
2
1
2
7
6
3
5
4
10
12
11
CN804
A
SP
SP-GND
CN151
B
SCREEN
SP
SP-GND
CL301A
GREEN1
123
CL301B
CN301
123
CN502
GREEN4
JUNCTION-C CBA
CN303
BLUE2
RED3
GND4
4
BT6600F01012
4
BLUE3
RED2
GND1
C-OPEN2
2
INT.MONITOR1I
GND3
SDA4
SCL5
(NO CONNECTION)
CN303 IS USED FOR
ADJUSTMENT AT
FAC TORY
SENSOR CBA
(END-SENSOR)
BHF300F01011-A,B
T551
FBT
CN201
C-FG
P-ON+5V(3)
CM+12V
SENSOR CBA
(ST-SENSOR)
BHF300F01011-A,B
C-F/R
CL604
TOP
COVER
C-CONT
FG-GND
D-PFG9
D-CONT8
LD-CONT
CL302A
CL302BCN302
CN552
VG
AL+12V(1)
M-GND
H-DRIVE1
FBP2
V-DRIVE3
V-RAMP-FB4
12345
JUNCTION-B CBA
12345
H-DRIVE1
FBP2
V-DRIVE3
V-RAMP-FB 4
CL401
V(L)
V-COM
V(R)
MAIN CBA
ACL5
P-SAFETY16
GND7GND7
6
77
BT6600F01012
6
ACL5
P-SAFETY1 6
CL402
CTL(-)1
BT6600F01012
CL603A
GND1
NU2
123456789
CL603B
CN603
123456789
CN602
GND1
NU2
CL403
FE-H1
CTL(+)2
A-PB/REC 3
A-COM4
AE-H/FE-H 5
AE-H6
AL+12V(1)3
P-DOWN-L4
AL+5V5
P-ON-L6
AL+12V(2)7
AL+9V8
GND9
GND10
101112
JUNCTION-A CBA
BT6600F01012
101112
AL+12V(1) 3
P-DOWN-L 4
AL+5V5
P-ON-L6
AL+12V(2) 7
AL+9V8
GND9
GND10
FE-H-GND 2
AL+33V11
P-ON+8V12
AL+33V11
P-ON+8V 12
ANODE
FOCUS
CRT CBA
BT6600F01022-B
CRT
CN501
GND
CL501B
HEATER1
GND2P-ON+160V3
CL501A
HEATER1
GND2P-ON+160V3
H.V. / POWER SUPPLY CBA
BT6600F01022-A
1
2
CN551
3
D.Y.
HD
1-10-1
123456789
JK703
CN601
5
1
2
4
VD
W601
1011121314151617181920
21
T6605WI
Chart 1
DISPLAY
SYSTEM CONTROL TIMING CHARTS
LD-CONT
44
D-REC-H
D-PB-H
65
A-MUTE-H
31
P-ON
ROTATION
DRUM
66
C-F/R
C-DRIVE
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(N-CANCEL) -> PLAY -> STOP(A)
See Electrical Parts List
for parts with this mark.
A1-3
A1-1
TL14
TB23
Some Ref. Numbers are
not in sequence.
1-14-11-14-2T6605CEX
[ T6705VF ]
A1X
B4
CLN551
V501
B2
A1-5
See Electrical Parts List
for parts with this mark.
Some Ref. Numbers are
not in sequence.
DG601
B2
A1-4
B1
Scotch
Tape #880
B2
TL1
TB2
CRT CBA
TL1
TB10
B2
B4
TL1
1B1
Sensor CBA
TB7
TL14
TL1
TB33
TB3
TB21
L9
TL1
TL1
TL1
Scotch
Tape
TL18
B3
TL1
CL604
TL1
Junction B CBA
Junction C CBA
Junction A CBA
Main CBA
Sensor CBA
A
TL1
TB1
A12
PB5
PL2
L8
L1
PL1
L1L1
PB4
PL2
PL1
PL2
PL1
L8
L1
A3
L2
L2
L1
L1
A2
PL1
H.V./Power
Supply CBA
A1-3
A1-2
PB1
A
A1-1
L4
TB23
CL801
B10
SP151
TL14
1-14-31-14-4T6605CEX
Packing
[ T6605VF ]
S2
X2-3
X1
TAPE
X3
X4
S6
S3
S1
FRONT
S4
1-14-5T6605PEX
[ T6705VF ]
X2-3
X1
TAPE
X3
S2
X4
S6
S1
S3
FRONT
S4
1-14-6T6605PEX
MECHANICAL PARTS LIST
PRODUCT SAFETY NOTE: Products marked with a !
have special characteristics important to safety. B efore
replacing any of these comp onents, 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 par t numbers (---------) ar e
not available.
Comparison Chart of Models and Marks
ModelMark
T6605VFA
T6705VFB
Ref. No. MarkDescriptionPart No.
A1XAFRONT CABINET ASSEMBLY T6605VF0EM101475
A1XBFRONT CABINET ASSEMBLY T6705VF0EM101476
A1-1AFRONT CABINET T6605VF0EM000936
A1-1BFRONT CABINET T6705VF0EM000937
A1-2ACONTROL PLA TE T6 605VF0EM201851
A1-2BCONTROL PLA TE T6 705VF0EM201852
A1-3BRAND BADGE TD006CGDURABRAND 0EM301865
A1-4CASSETTE DOOR T6600EA0EM408804
A1-5SPRING DOOR(Z10) T5200UA0EM406687
A2AREAR CABINET REAR CABINET0EM101490
A2BREAR CABINET REAR CABINET0EM000956
A3!ARATING LABEL T6605VF---------A3!BRATING LABEL T6705VF---------A12APOWER BUTTON POWER B UTT ON0EM302129
A12BPOWER BUTTON POWER B UTT ON0EM302130
CL801WIRE ASSEMBL Y (SPEAKER) 2P/20 0WX1T6300-002
CLN551ACRT GND WIRE CRT GNDWX1L7720-001
CLN551BCRT WIRE WX1T7180-005WX1T7180-005
DG601! ADEGAUSSING COIL F-056LLBH00ZTM056
DG601! BDEGAUSSING COIL F-057LLBH00ZTM057
L1SCREW, P-TIG HT 4X18 BIND HEAD +GBMP4180
L2SCREW, P -TIGHT M4X12 BIND HEAD+GBUP4120
L4BSCREW, ASSEMBLED 12:M3X120EM406746
L8FLAT HEA D SCREW T4 000U A0EM404793
L9SCREW, S -TIGHT 3X4 BIND HEAD+GBMS3040
L551!ADEFLECTION YOKE LLBY00ZSY005 orLLBY00ZSY005
!ADEFLECTION YOKE KDY3GDA82XLLBY00ZMS011
1B1DECK ASSEMBLY CZD013/VM2326N2326FT
B1SPRING TENSION B0080B0:EM4080826WH006
B2AM5 CRT SCREW(B) B4000UA0VM403923
B2BSCREW M7 CRT(D22) T7205UF0EM406573
B3ASHIELD PLA TE (PAL 14V) T6600EA0EM408803
B3BSHIELD PLA TE (PAL 21V) T6500RA0EM407921
B4BDEGAUSS HOLDER T7100UA0EM405476
B10CLOTH(10X30 XT0.5 ) B 5900UA0EM404486
SP151SPEAKER S08F02B orDSD0808XQ010
SPEAKER J-F097-C5DSD0808DCP01
TB1TRA Y CHASSIS T6400RA0EM000697
TB2TOP CO V ER T6300R A0EM 101155
Ref. No. MarkDescriptionPart No.
TB10ARCA HOLDER T6400RA0EM407753
TB10BRCA HOLDER(B) T6500RA0EM407833
TB23BOTTOM PLA TE T6300RA0EM101156
TB33BEARTH HOLDER(TU) T6310EZ0EM406959
TL1SCREW , P-TIGHT 3X12 W AS HER HEAD+ GCMP3120
TL14SCREW, B-TIGHT M3X8 BIND HEAD+GBMB3080
TL18SCREW, P-TIGHT M3X8 BIND HEAD+GBCP3080
V501!ACRT A34AGT13XTCRT190CP036
V501!BCRT A51AEZ90X25 KTCRT190CP047
V501-1AC.P .MAGNET JH225-FN-00XM04000BV003
V501-2AWEDGE FT - 0011 0W o rXV 10000 T400 1
AWEDGE DB25SRXV10000D9001
V501-3ARUBBER MAGNET 20X10X1.2XM05000BV001
PACKING
S1ACARTON T6605VF0EM409176
S1BCARTON T6705VF0EM409180
S2ASTYROFOAM TOP ASSEMBLY T6600EA 0EM409185
S2BSTYROFOAM TOP ASSEMBLY T6700EA 0EM409187
S3ASTYROFOAM BOTTOM ASSEM BLY
have special characteristics important to safety. B efore
replacing any of these comp onents, read carefully the
product safety notice in this service manual. Don't
degrade the safety of the product through improper servicing.
NOTES:
1.Parts th at are not assigned par t numbers (---------)
are not available.
2.Tolerance of Capacitors and Resistors are noted
with the following symbols.
C.....±0.25%D.....±0.5%F.....±1%
G.....±2%J......±5%K.....±10%
M.....±20%N.....±30%Z.....+80/-20%
Comparison Chart of Models and Marks
ModelMark
T6605VFA
T6705VFB
MMA CBA
Ref. No. MarkDescriptionPart No.
AMMA CBA 0ESA06014
BMMA CBA0ESA06027
Consists of the following
MAIN CBA-----------JUNCTION A CBA-----------JUNCTION B CBA-----------JUNCTION C CBA-----------SENSER CBA0ESA06133
MAIN CBA
Ref. No. MarkDescriptionPart No.
MAIN CBA
Consists of the following
CAPACITORS
C001CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C002ELECTROLYTIC CAP. 47µF/25V M orCE1EMASDL470
C006ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL010
C008ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL010
C009PCB JUMPER D0.6-P5.0JW5.0T
C151ELECTROLYTIC CAP. 330µF/16V M orCE1CMASDL331
C152CERAMIC CAP.(AX) X M 2200pF/16VCCA1CMT0X222
C154ELECTROLYTIC CAP. 470µF/16V M orCE1CMASDL471
16V or
CHIP CERAMIC CAP . (MELF) F Z 0.01µF/
16V
ELECTROLYTIC CAP. 47µF/25V MCE1EMASTL470
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASTL1R0
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASTL1R0
ELECTROLYTIC CAP. 330µF/16V MCE1CMASTL331
------------
CZM1CZ30F103
CZM1CZB0F103
Ref. No. MarkDescriptionPart No.
ELECTROLYTIC CAP . 470 µF/ 16V MCE1CMASTL471
C155ELECTROLYTIC CAP . 0.22µF/50V M H7CE1JMA V SLR2 2
C156CHIP CERAMIC CAP.(1608) B K 4700pF/
C157ELECTROLYTIC CAP . 10µF/25V M H7CE1EMAVSL100
C160CHIP CERAMIC CAP.(1608) CH J 270pF/
C203CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C205CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C207ELECTROLYTIC CAP . 1µF/ 50V M H7CE1JMAVSL1R0
C208CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C209CHIP CERAMIC CAP.(1608) CH J 22pF/
C210CHIP CERAMIC CAP.(1608) CH J 22pF/
C211ELECTROLYTIC CAP . 47µF/6.3V M H7CE0KMAVSL470
C212CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C213ELECTROLYTIC CAP . 47µF/6.3V M H7CE0KMAVSL470
C214ELECTROLYTIC CAP . 330µF/6.3V M orCE0KMA SDL331
C217CHIP CERAMIC CAP . CH D 10pF/50V orCHD1JD3CH100
C218CHIP CERAMIC CAP . CH D 10pF/50V orCHD1JD3CH100
C221ELECTROLYTIC CAP . 47µF/6.3V M H7CE0KMAVSL470
C222CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C223CHIP CERAMIC CAP.(MELF) Y K 4700pF/
C224CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
FILM CAP.(P) 0.1µF/50V JCMA1JJS00104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
ELECTROLYTIC CAP . 470 µF/6.3V MCE0KMASTL471
50V or
CHIP CERAMIC CAP.(MELF) B K 180pF/
50V
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
ELECTROLYTIC CAP . 1 µF/ 50V M orCE1JMASDL 1R0
ELECTROLYTIC CAP . 1 µF/ 50V MCE1JMASTL1R0
CHIP CERAMIC CAP . CH J 150pF/50VCHD1JJBCH151
ELECTROLYTIC CAP . 1 µF/ 50V M orCE1JMASDL 1R0
ELECTROLYTIC CAP . 1 µF/ 50V MCE1JMASTL1R0
ELECTROLYTIC CAP . 1 µF/ 50V M orCE1JMASDL 1R0
ELECTROLYTIC CAP . 1 µF/ 50V MCE1JMASTL1R0
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
CHD1JK30B103
CHD1JK30B103
CZM1JK3 0B 18 1
CZM1JKB0B181
CHD1JK30B103
CHD1JK30B103
200403221-16-2T6605EL
Ref. No. MarkDescriptionPart No.
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASTL1R0
C322ELECTROLYTIC CAP. 470µF/10V M orCE1AMASDL471
ELECTROLYTIC CAP. 470µF/10V MCE1AMASTL471
C323ELECTROLYTIC CAP. 47µF/25V M orCE1EMASDL470
ELECTROLYTIC CAP. 47µF/25V MCE1EMASTL470
C324CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C325FILM CAP .(P) 0.22µF/50V J orCA1J224MS029
C326ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL010
C327CHIP CERAMIC CAP.(1608) B K 0.01µF/
C328FILM CAP .(P) 0.22µF/50V J orCA1J224MS029
C330CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C331ELECTROLYTIC CAP. 47µF/10V M orCE1AMASDL470
C332CHIP CERAMIC CAP . (1608) F Z 0.1µF/25V orCHD1EZ30F104
C333CHIP CERAMIC CAP . (1608) F Z 0.1µF/25V orCHD1EZ30F104
C334CHIP CERAMIC CAP . (1608) F Z 0.1µF/25V orCHD1EZ30F104
16V or
CHIP CERAMIC CAP . (MELF) F Z 0.01µF/
16V
MYLAR CAP . 0.22µF/50V J orCMA1JJS00224
TF CAP. 0.22µF/50 V JCT1J224MS045
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASTL1R0
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
MYLAR CAP . 0.22µF/50V J orCMA1JJS00224
TF CAP. 0.22µF/50 V JCT1J224MS045
16V or
CHIP CERAMIC CAP . (MELF) F Z 0.01µF/
16V
ELECTROLYTIC CAP. 47µF/10V MCE1AMASTL470
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP . (1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP . (1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
CZM1CZ30F103
CZM1CZB0F103
CHD1JK30B103
CZM1CZ30F103
CZM1CZB0F103
Ref. No. MarkDescriptionPart No.
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
C402ELECTROLYTIC CAP . 1µF/ 50V M H7CE1JMAVSL1R0
C403ELECTROLYTIC CAP . 1µF/ 50V M H7CE1JMAVSL1R0
C404ELECTROLYTIC CAP . 100µF/6.3V H7CE0KMAVSL101
C405CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C406CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C407CHIP CERAMIC CAP.(1608) B K 0.01µF/
C408CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
C409CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
C410CHIP CERAMIC CAP.(1608) B K 0.01µF/
C411CHIP CERAMIC CAP.(1608) B K 0.01µF/
C412ELECTROLYTIC CAP . 1µF/ 50V M H7CE1JMAVSL1R0
C413CHIP CERAMIC CAP.(1608) B K 0.01µF/
C414CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
CHD1JK30B103
CHD1JK30B103
CHD1JK30B103
CHD1JK30B103
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP . (1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C336ELECTROLYTIC CAP. 47µF/10V M orCE1AMASDL470
ELECTROLYTIC CAP. 47µF/10V MCE1AMASTL470
C338CHIP CERAMIC CAP.(MELF) Y K 1000pF/
C340CHIP CERAMIC CAP.(MELF) B K 180pF/
C341CHIP CERAMIC CAP.(MELF) F Z 0.01µF/
C344CHIP CERAMIC CAP.(MELF) Y K 1000pF/
C350ELECTROLYTIC CAP. 220µF/10V M orCE1AMASDL221
C401CHIP CERAMIC CAP.(1608) B K 0.01µF/
35V or
CHIP CERAMIC CAP.(MELF) Y K 1000pF/
35V
50V or
CHIP CERAMIC CAP.(MELF) B K 180pF/
50V
16V or
CHIP CERAMIC CAP . (MELF) F Z 0.01µF/
16V
35V or
CHIP CERAMIC CAP.(MELF) Y K 1000pF/
35V
ELECTROLYTIC CAP. 220µF/10V MCE1AMASTL221
50V or
CZM1GK30Y1 02
CZM1GKB0Y102
CZM1JK30B181
CZM1JKB0B181
CZM1CZ30F103
CZM1CZB0F103
CZM1GK30Y1 02
CZM1GKB0Y102
CHD1JK30B103
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C415CHIP CERAMIC CAP.(1608) B K 0.01µF/
C416ELECTROLYTIC CAP . 47µF/6.3V M H7CE0KMAVSL470
C417ELECTROLYTIC CAP . 1µF/ 50V M H7CE1JMAVSL1R0
C418ELECTROLYTIC CAP . 1µF/ 50V M H7CE1JMAVSL1R0
C419CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
C420CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
C421ELECTROLYTIC CAP . 10µF/25V M H7CE1EMAVSL100
C424CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
CHD1JK30B103
200403221-16-3T6605EL
Ref. No. MarkDescriptionPart No.
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP . (1608) F Z 0.1µF/50V orCHD1JZ30F104
ELECTROLYTIC CAP. 220µF/16V MCE1CMASTL221
C682ELECTROLYTIC CAP. 220µF/16V M orCE1CMASDL221
ELECTROLYTIC CAP. 220µF/16V MCE1CMASTL221
C683ELECTROLYTIC CAP. 10µF/50V M orCE1JMASD L100
ELECTROLYTIC CAP. 10µF/50V MCE1JMASTL100
C684!CHIP CERAMIC CAP.(MELF) B K 180pF/
!CHIP CERAMIC CAP.(MELF) B K 180pF/
C687ELECTROLYTIC CAP. 47µF/25V M orCE1EMASDL470
50V or
50V
ELECTROLYTIC CAP. 47µF/25V MCE1EMASTL470
CZM1JK30B181
CZM1JKB0B181
Ref. No. MarkDescriptionPart No.
C688ELECTROLYTIC CAP . 47µF /25V M o rCE1EMASD L470
ELECTROLYTIC CAP . 47 µF/25V MCE1EMASTL470
C689BELECTROLYTIC CAP. 470µF/10V M orCE1AMASDL4 71
BELECTROL YTIC CAP. 470µF/10V MCE1AMASTL471
C691ELECTROLYTIC CAP . 2.2µF/50V M orCE1JMASDL2R2
ELECTROLYTIC CAP . 2.2 µF/ 50V MCE1JMASTL2R2
C694ELECTROLYTIC CAP . 100µF/10V M orCE1AMASDL101
ELECTROLYTIC CAP . 100 µF/ 10V MCE1AMASTL101
C703ELECTROLYTIC CAP . 4.7µF/50V M orCE1JMASDL4R7
ELECTROLYTIC CAP . 4.7 µF/ 50V MCE1JMASTL4R7
C707ELECTROLYTIC CAP . 0.22µF/50V M orCE1JMASDL R22
ELECTROLYTIC CAP . 0.2 2µF/50V MCE1JMASTLR22
C708ELECTROLYTIC CAP . 0.47µF/50V M orCE1JMASDL R47
ELECTROLYTIC CAP . 0.4 7µF/50V MCE1JMASTLR47
C709ELECTROLYTIC CAP . 0.47µF/50V M orCE1JMASDL R47
ELECTROLYTIC CAP . 0.4 7µF/50V MCE1JMASTLR47
C710ELECTROLYTIC CAP . 0.47µF/50V M orCE1JMASDL R47
ELECTROLYTIC CAP . 0.4 7µF/50V MCE1JMASTLR47
C711ELECTROLYTIC CAP . 470µF/10V M orCE1AMASDL471
ELECTROLYTIC CAP . 470 µF/ 10V MCE1AMASTL471
C713PCB JUMPER D0.6-P5.0JW5.0T
C715ELECTROLYTIC CAP . 4.7µF/50V M orCE1JMASDL4R7
ELECTROLYTIC CAP . 4.7 µF/ 50V MCE1JMASTL4R7
C716CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C719ELECTROLYTIC CAP . 1µF/ 50V M orCE1JMASDL 010
ELECTROLYTIC CAP . 1 µF/ 50V M orCE1JMASDL 1R0
ELECTROLYTIC CAP . 1 µF/ 50V MCE1JMASTL1R0
C723CHIP CERAMIC CAP.(MELF) Y K 1000pF/
C724ELECTROLYTIC CAP . 47µF /10V M o rCE1AMASD L470
C851ELECTROLYTIC CAP . 47µF/6.3V M H7CE0KMAVSL470
C855ELECTROLYTIC CAP . 220µF/6.3V M H7CE0KMAVSL221
C856CERAMIC CAP. B K 470pF/100V orCCD2AKS0B471
C857FILM CAP.(P) 0.018µF/50V J orCA1J183MS029
C858CHIP CERAMIC CAP. B K 2200pF/50V orCHD1JK30B222
C859CHIP CERAMIC CAP.(MELF) SL J 33pF/
C860PCB JUMPER D0.6-P5.0JW5.0T
C861CERAMIC CAP.(AX) X M 1800pF/16VCCA1CMT0X182
C862ELECTROLYTIC CAP . 10µF/25V M H7CE1EMAVSL100
C863CHIP CERAMIC CAP.(1608) B K 0.01µF/
C864CHIP CERAMIC CAP.(1608) F Z 0.1µF/25V orCHD1EZ30F104
C865CHIP CERAMIC CAP.(1608) B K 0.022µF/
35V or
CHIP CERAMIC CAP.(MELF) Y K 1000pF/
35V
ELECTROLYTIC CAP . 47 µF/10V MCE1AMASTL470
CERAMIC CAP. B K 470pF/500VCCD2JKS0B471
FILM CAP.(P) 0.018µF/100V JCMA2AJS00183
CHIP CERAMIC CAP. B K 2200pF/50VCHD1JKB0B222
50V or
CHIP CERAMIC CAP.(MELF) SL J 33pF/
50V
50V or
CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B103
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
25V or
CZM1GK30Y102
CZM1GKB0Y102
CZM1JJ3SL330
CZM1JJBSL330
CHD1JK30B103
CHD1EK30B223
200403221-16-4T6605EL
Ref. No. MarkDescriptionPart No.
CHIP CERAMIC CAP. B K 0.022µF/25V or CHD1EKB0B223
CHIP CERAMIC CAP.(1608) B K 0.022µF/
50V or
CHIP CERAMIC CAP. B K 0.022µF/50VCHD1JKB0B223
C866ELECTROLYTIC CAP. 33µF/10V H7CE1AMA VSL330
C867ELECTROLYTIC CAP. 4.7µF/50V M H7CE1JMAVSL4R7
C869CHIP CERAMIC CAP . (1608) F Z 0.1µF/25V orCHD1EZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/25V orCHD1EZB0F104
CHIP CERAMIC CAP . (1608) F Z 0.1µF/50V orCHD1JZ30F104
CHIP CERAMIC CAP. F Z 0.1µF/50VCHD1JZB0F104
C871CHIP CERAMIC CAP.(MELF) B K 180pF/
C872ELECTROLYTIC CAP. 1µF/50V M H7CE1JMAVSL1R0
C874CHIP CERAMIC CAP . (1608) F Z 0.1µF/25V orCHD1EZ30F104
IC301!IC:CHROMA/IF 1 CHIP M61209BFPQSZBA0RMB017
IC401!IC:Y/C/A LA71750EM-MPB-EQSZBA0RSY020
IC681!VOL TAGE REGULATOR KIA7805API orNSBBA0SJY011
!VOLTAGE REGULA T OR KA7805ANSZBA0SF3052
IC701!IC:ANALOG MUL TIPLEXERS
!IC:ANALOG MUL TIPLEXER CD4053BNSR orNSZBA0TTY093
!IC:SWITCH TC4053BF(N)QSMBA0STS002IC703!IC:ANALOG MUL TIPLEXERS
FILM CAP.(P) 0.047µF/50V JCMA1JJS00473
C559!BCERAMIC CAP. 1000pF/2 KV orCA3D102PAN04
!BCERAMIC CAP RB 1000pF/2KV orCA3D102TE006
!BCERAMIC CAP. BN 1000pF/2KV orCCD3DKA0B102
!BCERAMIC CAP. R K 1000pF/2KVCCD3DKA0R102C560!AP .P. CAP 0.0082µF/1.6K J orCA3C822VC010
!APP CAP . 0.0082µF/ 1.6K V J orCBH3CJQ00822
!AMETALLIZE D FILM CAP. 0.0082µF/1.6KV J orCT3C822F7004
!APP CAP . 0.0082µF/ 1.6K V JCT3C822MS039C560!BP .P. CAP 0.01µF/1.6K J orCA3C103VC010
!BPP CAP. 0.01µF/1.6KV J orCBH3CJQ00103
!BMETALLIZED FILM CAP. 0.01µF/1.6KV J or CT3C103F7004
!BPP CAP. 0.01µF/1.6KV JC T3C10 3MS03 9
C561FILM CAP.(P) 0.01µF/50V J orCA1J103MS029
FILM CAP.(P) 0.01µF/50V JCMA1JJS00103
C562ELECTROLYTIC CAP . 47µF/25V M orCE1EMASDL470
ELECTROLYTIC CAP . 47 µF /25V MCE1EMASTL470
C565!AELECTROL YTIC CAP. 47µF/160V M W/F or CE2CMZPDL470
!AELECTROLYTIC CAP . 47µF/160V MCE2CMZPTL470
C565!BELECTROL YTIC CAP. 100µF/160V M orCE2CMZPDL101
!BELECTROLYTIC CAP . 100µF/160V MCE2CMZPTL101
C566!BPCB JUMPER D0.6-P10.0JW10.0T
C567ELECTROLYTIC CAP . 1µF/ 160V M orCE2CMASDL1 R0
ELECTROLYTIC CAP . 1 µF/ 160V MCE2CMASTL010
C569!ELECTROL YTIC CAP. 4.7µF/250 V MCE2EMASDL4R7
C570!ELECTROL YTIC CAP. 1µF/50 V M orCE1JMASDL010
!ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
!ELECTROLYTIC CAP. 1µF/50V MCE1JMASTL1R0C572!AELECTROL YTIC CAP. 22µF/50V M orCE1JMASD L220
!AELECTROLYTIC CAP . 22µF/50V MCE1JMASTL220C572!BELECTROL YTIC CAP. 10µF/50V M orCE1JMASD L100
!BELECTROLYTIC CAP . 10µF/50V MCE1JMASTL100C575!AP .P. CAP 0.33µF/200V J orCA2D334VC013
!AMETALLIZED FILM CAP. 0.33µF/200V J or CT2D334F7003
!APP CAP. 0.33µF/250V JCT2E334MS04 1C575!BP .P. CAP 0.56µF/200V J orCA2D564VC013
!BMETALLIZED FILM CAP. 0.56µF/200V J or CT2D564F7003
!BPP CAP. 0.56µF/250V JCT2E564MS04 1
C602!SAFETY CAP. 2200pF/250V KXCA2E222MR050
C604!FILM CAP.(MP) 0.1µF/250V K orCT2E104DC011
!LINE ACROSS CAP . 0.1U/275V orCT2E104DC016
!METALLIZE D FI LM C AP. 0. 1µF/275V K or CT2E104HJE 06
!METALLIZE D FI LM C AP. 0. 1µF/250VCT2E104MS037
C611AELECTROLYTIC CAP. 100µF/400V M orCA2H101S6016
CERAMIC CAP. R K 680pF/2KV(HR)CCD3DKA0R681
C627!ELECTROLYTIC CAP. 100µF/160V M orCE2CMZPDL101
!ELECTROLYTIC CAP. 100µF/160V MCE2CMZPTL101
C629CERAMIC CAP.(AX) B K 0.01µF/50VCA1J103TU011
C630ELECTROLYTIC CAP. 1000µF/6.3V M orCE0KMASDL102
ELECTROLYTIC CAP. 1000µF/6.3V MCE0KMASTL102
C632ELECTROLYTIC CAP. 100µF/16V M orCE1CMASDL101
ELECTROLYTIC CAP. 100µF/16V MCE1CMASTL101
C633ELECTROLYTIC CAP. 47µF/25V M orCE1EMASDL470
ELECTROLYTIC CAP. 47µF/25V MCE1EMASTL470
C634ELECTROLYTIC CAP. 4.7µF/50V M orCE1JMASDL4R7
ELECTROLYTIC CAP. 4.7µF/50V MCE1JMASTL4R7
C636ELECTROLYTIC CAP. 100µF/10V M orCE1AMASDL101
PB1APOWER PCB HOLDER T6400RA0EM000696A
PB1BPOWER PCB HOLDER T6500RA0EM000722
PB4A13V POW HEAT SINK PAL PHKT 6400RA 0EM407687
PB4B21V POW HEAT SINK P AL PHLT6500RA0EM407688
PB513V P H/S PAL PHM ASSEMBLY T6400RA 0EM407691
PL1SCREW, P-TIGHT 3X12 W ASHER HEAD+ GCMP3120
PL2SCREW, B-TIGHT M3X8 BIND HEAD+GBMB3080
PS602!THERMISTOR ZPB31BL9R0AQNWZ31BL9R0A
SA601!SURGE ABSORBER 470V+-10PERNVQZ10D471KB
T551!AFLYBACK TRANS BSC23-2603S orLT F00CPS2054
!AFL YBA CK TRANSFORMER JF0501-
T551!BFLYBACK TRANS BSC23-2639S orLT F00CPS2058
!BFL YBA CK TRANSFORMER JF0501-
!BFLYBACK TRANSFORMER JF0501-3240 L TF00CPXB045
T552AH0RIZONTAL DRIVE TR ANS L P2- 005LT H00 CPA5005
T552BH0RIZONTAL DRIVE TR ANS L P2- 004LT H00 CPA5004
T601!ASWITCHING TRANS 04705LTT00EPKT119
T601!BSWITCHING TRANS 04704LTT00EPKT118
TP501PCB JUMPER D0.6-P7.5JW7.5T
TP502PCB JUMPER D0.6-P7.5JW7.5T
TP503PCB JUMPER D0.6-P15.0JW15.0T
TP504PCB JUMPER D0.6-P15.0JW15.0T
VR601!CARBON P .O .T. 20k Ω B orVRCB203HH014
!CARBON P .O .T. 20k Ω BVRCB203KA011
W601!AC CORD PE8G2CG9G0A-055WAE0162LW001
3101B
19198A or
L TF00CPXB0 39
L TF00CPXB0 43
CRT CBA
Ref. No. MarkDescriptionPart No.
CRT CBA
Consists of the following
CAPACITORS
C501ACERAMIC CAP .(AX) B K 220pF/50VCCA1JKT0B221
C501BCERAMIC CAP .(AX) B K 390pF/50VCCA1JKT0B391
C502ACERAMIC CAP .(AX) B K 220pF/50VCCA1JKT0B221
C502BCERAMIC CAP .(AX) B K 390pF/50VCCA1JKT0B391
C503ACERAMIC CAP .(AX) B K 220pF/50VCCA1JKT0B221
C503BCERAMIC CAP .(AX) B K 390pF/50VCCA1JKT0B391
C504CERAMIC CAP. B K 1000pF/2KV orCA3D102MR030
CERAMIC CAP. B K 1000pF/2KV orCCD3DKD0B102
CERAMIC CAP. B K 1000pF/2KVCCD3DKP0B102
ATRANSIST OR 2SC248 2 TPE6QQSZ02SC2482
Q503BTRANSISTOR KTC3503Y orNQWY0KTC3503
BTRANSISTOR 2SC3619QQ9Z02SC3619
RESISTORS
R501!METAL OXIDE FILM RES. 1W J 18k Ω or RN01183DP003
!METAL O XID E FILM RES . 1W J 18k ΩRN01183ZU001R502!METAL OXIDE FILM RES. 1W J 18k Ω or RN01183DP003
!METAL O XID E FILM RES . 1W J 18k ΩRN01183ZU001R503!METAL OXIDE FILM RES. 1W J 18k Ω or RN01183DP003
!METAL O XID E FILM RES . 1W J 18k ΩRN01183ZU001
This maintenance chart shows you the standard of replacement and cleaning time for each part.
Because those may change depending on environment and purpose for use, use the chart for reference.
H: Hours : Cleaning I: Change
DeckPeriodic Service Schedule
Ref.No.Part Name1,000 H2,000 H3,000 H4,000 H
B2
B3
B8Pulley AssemblyI
B587
B31
B573, B574Reel (SP)(D2), Reel (TU)(D2)
B37
B52
B73FE Head
B133, B134
B410
B414M Brake (SP) AssemblyII
B416
B525
Cylinder Assembly
Loading Motor Assembly
Tension Lever Assembly
ACE Head Assembly
Capstan Motor
Cap Belt
Idler Gear, Idler Arm
Pinch Arm(A) Assembly
M Brake (TU) Assembly
LDG Belt
II
I
I
II
I
I
II
II
I
II
II
II
II
B569
(2 head only)
B593
(4 head,
4 head HiFi
only)
Notes:
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
2-1-1U29PMEN
Cleaning
Cleaning of Video Head
Clean the head with a head cle aning 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 o n the chamois cloth and,
by slightly pressing i t a gai ns t th e h ead ti p, tur n the
upper drum to the right and to the left.
Notes:
1.The video head surface is made of very hard
material, but sin ce it is very t hin, avoid cleaning it
vertically.
2.Wait for the cleaned part to dr y 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% isopr opyl 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 par t 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
2-1-2U29PMEN
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 TapeFL6AHead Adjustment of ACE Head
J-1-2Alignment TapeFL6N8
(2 Head model)
FL6NS8
(4 Head model)
J-2Guide Roller Adj. Screwdriver Available
Locally
J-3MirrorAvailable
Locally
J-4Azimuth Adj. Screwdriver +Available
Locally
J-5Flat Screwdriver -Available
Locally
2-2-1U29PFIX
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 alignm ent 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. Inser t a cassette tape. Thou gh the tape wil l not be
automatically l oaded, make sure that the cass ette
tape is all the way in at the inlet of the Cassette
Holder. To confirm this, lightly push the cassette
tape fur ther in and se e if the tape co mes 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 t wo 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 B elt in the app ropri ate directio n 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 tur ning the LDG Belt unti l
the Cassette Holder comes to the tape-loaded
position. Allow a minute or two to complete this
task.
T op 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
2-3-1Z13P2HMA
1. Tape Interchangeability Alignment
Note:
To do th ese alignment proce dures, m ake s ure t hat 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
2-3-2Z13P2HMA
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 ta pe 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 turnin g the top of Guide Rollers [2] and
[3] with a Guide Roller Adj. Screwdriver. (Refer to
Fig. M3 and M5.)
Guide Roller [2]
Guide Roller [3]
ACE Head
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
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 positi on of the Tracking Control
Circuit.
A
Take-up Guide Post [4]
Lead Surface of Cylinder
Correct
Guide Roller
Tape
Take-up Guide
Post
Tape
B
Tape
Incorrect
Fig. M3
Fig. M4
1. Connect the oscilloscope to TP008 (C-PB) and
TP001 (CTL) on the Main CBA. Use TP002 (RFSW) as a trigger.
2. Playback the Gray Scale of the Alignment Tape
(FL6N8) 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 F lat Screwdriver so that the PB FM si gnal
at TP008 (C-PB) is maximum. (Fig. M6)
Fig. M5
3. Check to see tha t the ta pe runs without creasi ng at
Take-up Guide Post [4] or wi tho ut s na king bet ween
Guide Roller [3] and ACE Head. (Fig. M3 and M5)
2-3-3Z13P2HMA
5. To shift the CTL waveform, press CH UP or CH
DOWN button on the remote control unit. Then
make sure that the m aximum outp ut pos ition of PB
FM envelope signal become withi n
set position.
±2ms from pre-
Good
FM envelope signal
2ms
Center Position
5. When G uide Rollers [2] and [3] (Refer to Fig. M3)
are aligned properly, there is no envelope drop
either at the beginni ng or end of track as shown in
Fig. M9.
Dropping envelope level at the beginning of track.
Fig. M8
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 pr eset position by pressing CH UP button on the remote co ntrol 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 distor ted by any slight variation of the Tracking Control Circuit.
1. Connect the oscilloscope to TP008 (C-PB) on the
Main CBA. Use TP002 (RF-SW) as a trigger.
2. Playback the Gray Scale on the Alignment Tape
(FL6N8). Set the Tracking Control Circuit to the
preset position by pres sing 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 oscillosc ope display so that the envelope becomes as flat as poss ible. 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 Ro ller [2 ] ( Refer to Fi g. M3) s o tha t
the waveform looks like the one shown in Fig. M9.
4. If the envelope is as shown in Fig. M8, adjust the
height of Guide Ro ller [3 ] ( Refer to Fi g. M3) s o tha t
the waveform looks like the one shown in Fig. M9.
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 s ymmetr y 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.”
2-3-4Z13P2HMA
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/Con trol/Erase Head is not
properly aligned, the Audio S/N Ratio or Frequency
Response will be poor.
1. Connect the oscilloscope to the audio o utput jack
on the rear side of the deck.
2. Playback the align ment tape (FL6N8) and confi rm
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)
Note: Upon completion of the adj ustment of Azimuth
Adj. Screw, check the X Value by pushing the C H UP
or DOWN buttons alternately, to check the symmetry
of the envelope. Check the number of pushes to
ensure preset posi tion. The number of p ushes C H 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.”
2-3-5Z13P2HMA
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, in cluding those for adjustment and replaceme nt 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.
No.
[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) AssemblyT
[14][14]FE HeadTD M1, 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)
(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.
2-4-2Z13PDA
T op 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
2-4-3Z13PDA
(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
2-4-4Z13PDA
[7]
[46]
(S-4A)
[11]
(L-4)
(P-3)
Desolder
from bottom
(S-2)
View for A
Lead with
Red Stripe
A
[47]
(L-14)
Fig. DM6
[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].
Pin of [12]
Pin of [10]
View for A
[10]
A
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.
Fig. DM8-1
[12]
(P-2)
[9]
(S-4)
[8]
A
(S-3)
Desolder
from bottom
Lead with White Stripe
LDG
Belt
View for A
[8]
Fig. DM7
2-4-5Z13PDA
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
2-4-6Z13PDA
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]
T op Vie w
Pin on [22]
[28]
Position of pin on [22]
Fig. DM12
2-4-7Z13PDA
[27]
[28]
(L-10)
(S-9)
[25]
(L-8)
[26]
(L-9)
(C-4)
(C-3)
[24]
[31]
(P-6)
[30]
[29]
(L-11)
Refer to the Alignment
Section, Page 2-5-1.
[33]
[32]
Fig. DM14
Position of Mode Lever when installed
Pin of [34]
Bottom View
[28]
Installation of [25]
Pin of [31]
Align [25] and [28] as shown.
First groove on [28]
Pin of [35]
First tooth on [44]
[28]
Fig. DM13-1
[25]
(P-8)
[35]
[37]
turn
turn
[40]
(L-12)
[39]
[38]
[36]
Break belt
(P-7)
[34]
turn
T op Vie w
When reassembling [28],
align the first groove on
[28] to the first tooth on
[44] as shown.
Fig. DM13-2
Fig. DM15
2-4-8Z13PDA
[41]
[42]
[43]
(L-13)
Fig. DM16
(P-9)
[45]
[44]
Slide
Fig. DM17
2-4-9Z13PDA
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 th e correct relatio nship bet ween indi vidual 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 procedur es 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 electr i c al parts.
Alignment points in Eject Position
T op 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 A rm ( SP) Ass embly 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 T ooth
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 As se mbly s o tha t t he fir s t toot h o n
the gear of the Rack Assembly meets the first
groove on the Cam Gear (A) as shown in Fig. AL3.
T op Vie w
Cam Gear (A)
Alignment 3
First tooth
First groove
on the Cam Gear (A)
Gear on Rack Assembly
Fig. AL3
2-5-1U29PAPM
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