Proper service and repair is important to the safe, reliable operation of all
Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service
operations. Some of these service special tools should be used when and
as recommended.
It is important to note that this service manual contains various CAUTIONS
and NOTICES which should be carefully read in order to minimize the risk of
personal injury to service personnel. The possibility exists that improper
service methods may damage the equipment. It also is impo rtant to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Funai
could not possibly know, evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous
consequences of each way. Consequently, Funai has not undertaken any
such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Mechanical Parts List .......................................... 12-1
Electrical Parts List.............................................. 13-1
SPECIFICATIONS
<TUNER>ANT. Input ------------------- 75ohm Unbal., F type
Reference Level------------20Vp-p (CRT Green Cathode)
Test Input Signal -----------400Hz 30% modulation
DescriptionConditionUnitNominalLimit
1. Intermediate Freq.Picture
Sound
2. Peak Picture SensVHF
CATV
UHF
MHz
MHz
dBµv
dBµv
dBµv
45.75
41.25
15
15
15
-
-
30
30
40
3. AFT Pull In Range
(10mV input)
-MHz±2.0±0.7
<DEFLECTION>
DescriptionConditionUnitNominalLimit
1. Deflection Freq.Horizontal
Vertical
2. LinearityHorizontal
Vertical
3. Over Scan-%10-
4. High Voltage-KV23-
KHz
Hz
%
%
15.734
60
-
-
<VIDEO & CHROMA>
DescriptionConditionUnitNominalLimit
1. MisconvergenceCenter
Side
Corner
2. BrightnessAPL 100%Ft-L6040
3. Color Temperature-°K9200°K-
mm
mm
mm
-
-
-
-
-
±15
±10
0.3
1.2
1.5
4. ResolutionHorizontal
<AUDIO>
DescriptionConditionUnitNominalLimit
1. Audio Output Power10% THDW10.8
2. Audio Distortion (w/LPF)500mW%27
3. Audio Freq. Response
Note:
Nominal specifications represent the design specifications. All units should be able to approximate
these. Some will exceed and some may drop slightly below these specifications. Limit specifications
represent the absolute worst condition that still might be considered acceptable. In no case should
a unit fail to meet limit specifications.
All items are measured across 8Ω load at speaker output terminal.
Vertical
-
3dBHz100~11K-
1-1L6015SP
Line
Line
250
300
-
-
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the fact ory, our products are stri ctly insp ected for recogni zed pr oduct sa fety 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 instrum ent t o the c ustom -
er, always make a safety check of the entire instru-
ment, including, but not limited to, the following
items:
a. Be sure that no built-in protec tive devic es are de -
fective and have b een defeated during servicing.
(1) Protective shields are provided on this chassis
to protect both the technician an d the customer.
Correctly replace all missing protective shields, including any removed for servicing convenience.
(2) When reinstalli ng the c hassis an d/or othe r assembly in the cabinet, be sure to put back in place
all protective de vices, in cluding but not li mited to,
nonmetallic control knobs, insulating fishpapers,
adjustment and compartment cove rs/shields, and
isolation resistor/capacitor networks. Do not oper-
ate this instrument or permit it to be operated
without all protective devices correctly installed and functioning. Servicers who defeat
safety features or fail to perform safety checks
may be liable for any resulting damage.
b. Be sure that there are no cabinet openings through
which an adult or child might be able to insert their
fingers and contact a hazardous voltage. Such
openings include, but are not limited to, ( 1) spacing between the picture tube and the cabinet
mask, (2) excessively wide cabinet ventilation
slots, and (3) an improperly fitted and/or incorrectly
secured cabinet back cover.
c. Antenna Cold Check - With the instrument AC
plug removed from any AC source, connect an
electrical jumper acr oss the two AC plug prongs.
Place the instrument AC switch in the o n position.
Connect one lead of an oh mmeter to the A C 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 mego hm or greater than 5 .2 megohm, an abnormality exists that must be corrected
before the instrument is r eturne d to the cu stomer .
Repeat this test with the ins trument 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 d uring thi s test.) Use a leak-
age current tester or a me tering syst em that com plies with American National Standards Institute
(ANSI) C101.1 Leakage Current for Appliances
and Underwriters Laborat ories (UL) 1410, (50.7).
With the instrument AC switc h first in the on posi tion and then in the o ff position, measure from a
known earth ground (metal water pipe, conduit,
etc.) to all exposed metal parts of the instrument
(antennas, handle br ackets, metal cabi net, screw
heads, metallic overlay s, control shafts, etc.), es pecially any exposed metal parts that offer an electrical return path to the chassis. Any current
measured must not excee d 0.5 milli-ampere. Re verse the instrument power cord plug in the outlet
and repeat the test.
READING SHOULD
NOT BE ABOVE 0.5 mA
LEAKAGE
DEVICE
BEING
TESTED
TEST ALL EXPOSED
METAL SURFACES
ALSO TEST WITH
PLUG REVERSED
USING AC
ADAPTER PLUG
AS REQUIRED
ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL
SHOCK HAZARD THAT MUST BE ELIMINATED
BEFORE RETURNING THE INSTRUMENT TO
THE CUSTOMER OR BEFORE CONNECTING
THE ANTENNA OR AC CES SORI ES.
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 -
CURRENT
TESTER
+
EARTH
GROUND
_
2-1L6115IMP
ing is performed that inv olves B+, horizontal deflection or high voltage. Correct operation of the Xradiation protection circuits also must be reconfirmed 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 dress in the following areas:a.
near sharp edges,b. near thermally hot parts-be
sure that leads and components do not touch thermally hot parts, c. the AC supply,d. high voltage,
and,e. antenna wir ing. Always insp ect 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 nece ss ar y, ta ke corre ct i ve ac ti o n 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 they comply with the recognized product safety and electrical codes of the countries in which
they are to be sold. Howev er, in orde r to mai ntain
such compliance , it is equally i mportant to imple ment the following precautions when a set is being
serviced.
2-2L6115IMP
Precautions during Servicing
A. Parts identified b y the ( # ) symbo l are c ritica l for
safety.
Replace only with part number specified.
B. In addition to safety, othe r parts and assemblies
are specified for conformance with regulations applying to spurious radiati on. 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 abo ut the terminals before so ldering.
F. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fusible resistor s, 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
The power transform er uses crimp type connec-
tors which connect the power cord and the primary
side of the transformer. When replacing the trans-
former, follow these step s carefully and precis ely
to prevent shock hazards.
Replacement procedure
1) Remove the old conn ector by c utting the wire s at
a point close to the connector.
Important: Do not re-use a connector (discard it).
2) Strip about 15 mm of the ins ulation 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 con nected. Insert the wires fully into the connector.
4) Use the crimping tool to crim p the met al sleeve at
the center position . Be sure to crimp fully to the
complete closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, discon nect the AC plug from the
AC supply outlet.
2-3L6115IMP
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 th e fol lo wing tes ts and c on firm the specified values in orde r to verify comp liance
with safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance d istance (d) a nd (d') betwee n soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
T able 1 : Ratings for selected area
AC Line VoltageRegion
110 to 130 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
USA or
CANADA
Clearance
Distance (d) (d')
≥ 3.2 mm
(0.126 inches)
2. Leakage Current Test
Confirm the specified (or lower) leakage current between B (earth ground, power cor d plug prongs) and
externally exposed accessible parts (RF terminals,
antenna terminals , video and audio input and outp ut
terminals, micr ophone jacks, earphone jack s, etc.) is
lower than or equal to the sp ecified value in the table
below.
Measuring Method : (Power ON)
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across both terminals of
load Z. See Fig. 2 and following table.
Z
1.5kΩ
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
Exposed Accessible Part
AC Voltmeter
0.15µF
Earth Ground
B
Power Cord Plug Prongs
(High Impedance)
Fig. 1
Fig. 2
Table 2 : Leakage current ratings for selected areas
AC Line VoltageRegionLoad ZLeakage Current (i)Earth Ground (B) to:
0.15µF CAP. & 1.5kΩ
110 to 130 VUSA
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
RES. connected in
parallel
2-4L6115IMP
i≤0.5mA rms
Exposed accessible
parts
STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indicat-
ed as shown.
Top View
Out
b. For other ICs, pin 1 a nd ever y fifth pin are in dic at -
ed as shown.
Pin 1
c. The 1st pin of every male connector is indicated as
shown.
Pin 1
Input
In
Bottom View
5
10
(2) Remove the flat pack-IC with tweezers while ap-
plying the hot air.
(3) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Caution:
1. Do not supply hot air to the chip pa rts around the
flat pack-IC for over 6 seconds because damage
to the chip parts may occur. Put masking tape
around the flat pack-IC to protec t other par ts from
damage. (F ig. S-1-2)
2. The flat pack-IC on the CBA is affixed with glue, so
be careful not to br eak or d amage the foi l of ea ch
pin or the solder lands u nder the IC when rem oving it.
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
(1) Prepare the hot-air flat pack-IC desoldering ma-
chine, then apply hot air to the Flat Pack-IC (about
5 to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-2
3-1L6115STA
With Soldering Iron:
(1) Using desoldering brai d, remove the solder from
all pins of the flat pac k-IC. When you use solde r
flux which is appl ied to all pins of the flat pack- IC,
you can remove it easily. (Fig. S-1-3)
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
(2) Lift each lead of the flat pack-IC up ward one by
one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering machine.(Fig. S-1-4)
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Note:
When using a soldering iron, care must be taken to
ensure that the flat pack- IC is not being held by
glue. When the flat pack-IC is removed from the
CBA, handle it gently because it may be damaged
if force is applied.
Hot Air Blower
or
Iron Wire
Soldering Iron
To Solid
Mounting Point
Fig. S-1-5
Sharp
Pin
Fine Tip
Soldering Iron
Fig. S-1-4
(3) Bottom of the flat pack-IC is fixe d with glue to t he
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
With Iron Wire:
(1) Using desoldering brai d, remove the solder from
all pins of the flat pac k-IC. When you use solde r
flux which is appl ied to all pins of the flat pack- IC,
you can remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
(3) While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.
(4) Bottom of the flat pack-IC is fixe d with glue to t he
CBA; when removing entire flat pack-IC, first apply
CBA
Tweezers
Fine Tip
Soldering Iron
Flat Pack-IC
Fig. S-1-6
3-2L6115STA
2. Installation
(1) Using desoldering brai d, remove the solder from
the foil of each pin of th e flat pac k-IC on the CBA
so you can install a replacement flat pack-IC more
easily.
(2) The "I" mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the 1
on the PCB when positioning for installation. Then
pre- solder the four corners of the flat pack-IC.
(See Fig. S-1-8.)
(3) Solder all pins of the flat pack-IC. Be sure that
none of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a pote ntial difference caused by el ectrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grou ndi ng ban d ( 1 MΩ) th at i s pr op erly grounded to remove any static electricity that may
be charged on the body.
2. Ground for Workbench
Be sure to pla ce a conductive sheet or copp er plate
with proper grounding (1MΩ) on the workbench or
other surface, where the semiconductors are to be
placed. Because th e static electrici ty charge on clothing will not es cape throu gh the body gr ounding ba nd,
be careful to avoid contacting semiconductors with
your clothing.
<Incorrect>
CBA
Presolder
Flat Pack-IC
Fig. S-1-8
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
3-3L6115STA
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicate s the disassem bly steps for the
cabinet parts, and the CBA in or der to gain acce ss to
item(s) to be servic ed. Wh en rea ssemb ling, fol low th e
steps in reverse order. Bend, route and dress the
cables as they were.
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] CRT CBA
[3] Main CBA
[4] CRT
Note :
(1) Order of steps in procedure. Wh en reassemb ling,
follow the steps i n reverse or der. These n umbers
are also used as the Identification (location) No. of
parts in figures.
(2) Parts to be removed or installed.
(3) Fig. No. showing procedure of part location
(4) Identification of part to be removed, unhooked, un-
locked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connector, *=Unhook, Unlock, Release, Unplug, or
Desolder
2(S-2) = two Screws (S-2)
(5) Refer to the following "Reference Notes in the
Table.
Reference Notes in the Table
1. Removal of the Rear Cabinet. Remove screws
4(S-1), then slide the Rear Cabinet backward.
2. Removal of the CRT CBA. Disconnect CN501 then
pull the CRT CBA backward.
3. Rem oval of the M ain CBA. D isconnect CN571 on
the Main CBA then slide the Main CBA backward.
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
4. Rem oval of the CRT. Remove screws 4(S-2) and
Anode Cap. then slide the CRT backward.
4-1L6300DC
S-1
S-1
[1] Rear Cabinet
Front Cabinet
[3] Main CBA
Control Plate
[1] Rear Cabinet
Front Cabinet
S-1
S-1
Fig. 1
S-1
S-1
Front
Cabinet
CRT
Ground Wire
S-2
Anode Cap.
S-2
[4] CRT
Fig. 3
Degaussing
Coil
[2] CRT
S-2
CBA
S-2
Control Plate
Control Plate
Fig. 4
Fig. 2
4-2L6300DC
TV Cable Wiring Diagram
L691 DEGAUSSING COIL
MAIN CBA
SP801
CLN801
CN801
AC601
AC CORD
CN691
FLYBACK TRANSFORMER
T571
CN571
FOCUS
SCREEN
WH301A
TU1
TUNER
WH501A
JK501
WH301B
ANODE
WH501B
CN501
TO CRT GROUND
Fig. 5
4-3L6300DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note:
"CBA" is abbreviation for "Circuit Board Assembly."
NOTE:
Electrical adjustm ent s ar e r equ ired after replacing
circuit components a nd certain mechanic al parts.
It is important to perform these adjustm ents only
after all repairs and replacements have been completed.
Also, do not attempt these adjustments unless the
proper equipment is available.
Test Equipment Required
1. NTSC Pattern Generator (Color Bar W/White
Window, Red Color, Dot Pattern, Gray
Scale, Monoscope, Multi-Burst)
2. DC Voltmeter
3. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div,
F-Range: DC~AC-60MHz
4. Plastic Tip Driver
5. Remote control unit: Part No. N0 121UD or N0134UD
6. DC power supply 13.2V/5A
7. Color Analyzer
How to make service remote control
unit:
1. Prepare normal remote control unit. (Part No.
N0121UD or N0134UD) Remove 3 S crews from
the back lid. (Fig. 1-1)
2. Add J1 (Jumper Wire) to the r emote cont rol CBA.
(Fig. 1-2)
How to set up the service mode:
Service mode:
1. Use the service remote control unit.
2. Turn the power on. (Use mai n power on the TV un it.)
3. Press "SLEEP" button on the service remote control unit. Version of m icro co mpu ter wi ll dis pl ay on
the CRT. (Ex: 050-0.11)
4. When CPU version is 050-0.11: Check the display
on the lower left is "10" and if it is not "10," set it at
"10" according to "3-1 7F, FRENCH, ACCESS
CODE, STEREO, VIDEO TONE, FM-MODE, VOUT."
1. DC 105V Adjustment
Purpose: To obtain correct oper ation.
Symptom of Misadjustment: The picture is dark and
the unit does not operate correctly.
Test PointAdj. PointModeInput
TP601
TP300
(GND)
TapeM. EQ.Spec.
---DC Voltmeter+105±0.5V DC.
Note: TP601, TP300 (GND,) VR661 --- Main CBA
1. Connect DC Volt Meter to TP601 and TP300
(GND.)
2. Adjust VR661 so th at the voltage o f TP60 1 becomes
+105±0.5V DC.
VR661------
SCREW
REMOTE CONTROL UNIT
J 1
REMOTE CONTROL CBA
Fig. 1-1
Fig. 1-2
5-1L6300EA
2. Black Stretch Control Adjustment
Purpose: To show the fine black color.
Symptom of Misadjustment: Black color will not
appear correctly.
Note: Use service remote control unit.
1. Enter the Service mode. (See page 5-1)
2. Press "6" button on the service remote control unit.
"B-S" is indicated.
3. Press "CH o / p" butt ons on the service remote con-
trol unit so that displa y will change "OFF," "0, " "1," "2"
and "3." Then choose "B-S OFF."
4. Press "6" button on the service remote control unit.
"B-S*2" is indicat ed.
5. Press "CH o / p" butt ons on the servi ce remote
control unit so that display will change "0" and "1."
Then choose "B-S*2 0."
6. Turn the power off and on again, using the mai n
power button on the TV unit.
3-1. Setting for Data Values
General
1. Enter the Service mode. (See page 5-1)
2. To select the Data Value, press "VOL p" button on
the service remote control unit.
3. To set the following each data value, press "CH o
/ p" buttons on the service remote control unit.
7F --- set to 7F
FRENCH --- set to OFF
ACCESS CODE --- set to OFF
STEREO --- set to OFF
VIDEO TONE --- set to OFF
FM-MODE --- set to OFF
V-OUT --- set to OFF
3-2. Setting for CONTRAST,
COLOR, TINT, V-TINT and
SHARP data Values
General
1. Enter the Service mode. (See page 5-1)
2. Press "MENU" button on the service remote control
unit. Display changes "BRIGHT," "CONTRAST,"
"COLOR," "TINT," "V-TINT" and "SHARP" cyclically
when "MENU" button is pressed.
CONTRAST (CNT)
1. Press "MENU" button on the service remote control
unit. Then select "CONTRAST" (CNT) displ ay.
2. Press "CH o / p" buttons on the service remote
control unit so that the value of "CONTRAST"
(CNT) becomes 84.
COLOR (CLR)
1. Press "MENU" butto n on the ser vice remot e control unit. Then select "COLOR" (CLR) display.
2. Press "CH o / p" buttons on the service remote
control unit so that the val ue of "COLOR" (CLR)
becomes 58.
TINT (TNT)
1. Press "MENU" butto n on the ser vice remot e control unit. Then select "TINT" (TNT) display.
2. Press "CH o / p" buttons on the service remote
control unit so that the value of "T INT" (TNT) becomes 57.
V-TINT (V-TNT)
1. Press "MENU" butto n on the ser vice remot e control unit. Then select "V-TINT" (V-TNT) display.
2. Press "CH o / p" buttons on the service remote
control unit so that the value of "V- TINT" (V-TNT )
becomes 60.
SHARP (SHARP)
1. Press "MENU" butto n on the ser vice remot e control unit. Then select "SHARP" (SHARP) display.
2. Press "CH o / p" buttons on the service remote
control unit so that the value of "SHARP" (SHARP)
becomes 40.
Note: BRIGHT data value does not need to be adjust-
ed at this moment.
5-2L6300EA
4. Black Level Adjustment
Purpose: Set Black Level
Symptom of Misadjustment: If Black level is i ncor-
rect, Proper brightness can not be obtained by adjust ing the Brightness Control.
Note: TP300 (GND,) D316 (Cathode) --- MAIN CBA
1. Enter the Service mode. (See page 5-1.)
2. Press "MENU" button on the service remote control unit and select "BRT" mode. (Display changes
"BRT," "CNT," "CLR," "TNT," "V-TINT" and
"SHARP" cyclically when MENU button is
pressed.)
3. Press "CH o / p" butt ons on the servi ce remote
control unit so that the value of "BRT" becomes
128.
4. Turn the power off and on again, using the mai n
power button on the TV unit.
5. V. Size Adjustment
Purpose: To obtain correct vertical width of screen image.
Symptom of Misadjustment: If V.Size is incorrect, vertical
size of image on the screen may not be properly displayed.
Test PointAdj. PointModeInput
Screen Cont rol
---
TapeM. EQ.Spec.
---Monoscope90±5%
Note: Use service remote control unit.
1. Operate the unit for at least 20 minutes.
2. Enter the Service mode. (See page 5-1)
3. Receive the Monoscope Pattern.
4.
Press "9" button on the ser vice remote c ontrol uni t
and select "V-S" mode. (Display changes "V-S" and
"V-P" cyclically when "9" bu tto n i s pr ess ed. )
5. Press "CH o / p" butt ons on the servi ce remote
control unit so that the m onoscope pattern will be
90±5% of display size and the circle is round.
6. Turn the power off and on again, using the mai n
power button on the TV unit.
CH o / p
buttons [ V-S ]
Mode
RF
Mono-
scope
6. V. Position Adjustment
Purpose: To obtain correct vertical width of screen
image.
Symptom of misadjustment: If V. Position is incor-
rect, vertical height of image on the screen may not be
properly displayed.
Test PointAdj. PointModeInput
---Screen Control
CH o / p
buttons
[ V-P ] Mode
TapeM. EQ.Spec.
---Monoscope90±5%
Note: Use service remote control unit
1. Operate the unit for at least 20 minutes.
2. Enter the Service Mode. (See page 5-1)
3. Receive the Monoscope Pattern.
4. Press "9" button on the service remote control unit
and select "V-P" mode. (Display change "V-S" and
"V-P" cyclically when "9" button is pressed.)
5. Press "CH o / p" buttons on the service remote
control unit so that the top and bottom of the monoscope pattern will be equal of each other.
6. Turn the power off and on again, us ing the main
power button on the TV unit.
RFMono-
scope
7. H. Position Adjustment
Purpose: To obtain correct horizontal position of
screen image.
Symptom of Misadjustment: If H. Position is incor-
rect, horizontal position of im age on the screen may
not be properly displayed.
Test PointAdj. PointModeInput
Screen Control
---
TapeM. EQ.Spec.
---Monoscope90±5%
Note: Use service remote control unit
1. Operate the unit for at least 20 minutes.
2. Enter the Service mode. (See page 5-1)
3. Receive the Monoscope Pattern.
4. Press "8" button on the remote control unit and select "H-P" mode.
5. Press "CH o / p" buttons on the service remote
control unit so th at the mono scope p attern will be
90±5% of display size and the circle is round.
6. T urn the power off and on again, using the main
power button on the TV unit.
CH o / p
buttons
[ H-P ] Mode
RF
Monoscope
5-3L6300EA
8. Cut-off Adjustment
Purpose: To adjust the beam current of R, G, B, and
screen voltage.
Symptom of Misadjustment: White color may be
reddish, greenish or bluish.
9. White Balance Adjustment
Purpose: To mi x r ed , gr ee n an d bl ue bea ms co rre ctly
for pure white.
Symptom of Misadjustment: White becomes blui sh
or reddish.
Test PointAdj. PointModeInput
Screen-Control
---
TapeM. EQ.Spec.
---
Note: Screen Control FBT --- Main CBA
FBT= Fly Back Transformer
Use service remote control unit
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Input the Black Raster Signal from RF Input.
3. Enter the Service mode. (See page 5-1)
4. Press "VOL p" button on the service remote control
unit and selec t "C/D" mode. (Displ ay changes "C/
D," "7F," "FRENCH," "ACCESS CODE," "STEREO," "VIDEO TONE," "FM-MODE" and "V-OUT"
cyclically when "VOL p" button is pressed.) then
press "1." The displ ay wi ll mome ntar ily sh ow "CUT
OFF R" (R= Red. ) Now ther e should be a h orizontal
line across the center of the picture tube. If needed
gradually turn the screen control on the flyback,
clockwise until the horizontal line appears. Adjust
the Red Cut off by pressing the "CH o / p" buttons.
Proceed to Step 5 when the Red Cut off adjustment
is done.
5. Press the "2" button. The display will momentarily
show "CUT OFF G" (G=Green.) Adjust the Green
Cut off by pressing the "CH o / p" buttons. Proceed
to step 6 when the Green Cut of f adjustment is done.
6. Press the "3" button. The disp la y will mom ent arily
show "CUT OFF B" (B= Blue.) Adjust th e Blue cut
off by pressing the "CH o / p" buttons. When
done with steps 4, 5 and 6 the horizontal line
should be pure white if not, then attempt the Cut off
adjustment again.
CH o / p
buttons
Pattern
Generator
Figure
PATTERN GENERATOR
EXT. INPUT
RF
See Reference
Notes below.
Fig 2
Black
Raster
Test PointAdj. PointModeInput
Screen-Control
Screen
TapeM. EQ.Spec.
Note: Use service remote control unit
1. Operate the unit more than 20 minutes.
2. Face the unit to east. Degauss the CRT using Degaussing Coil.
3. Input the White Raster (APL 100%).
4. S et the color an alyzer to the CHROMA mod e and
after zero point calibration, bring the optical receptor to the center on the tube surface (CRT).
5. Enter the Service mode. Press "VOL p" button on
the service remote control unit and select "C/D"
mode. (Display changes "C/D," "7F," "FRENCH,"
"ACCESS CODE," "STEREO," "VIDEO TONE,"
"FM-MODE" and "V-OUT" cycl ically when "VOL p"
button is pressed.) Then press "8" button on the
Service remote control Unit.
6. Press "4" bu tton on the service r emote c ontrol un it
for Red adjustment. Press "5" button on the service
remote control unit for Blue adjustment.
7. In each color mode, press "CH o / p" b utton to adjust the values of color.
8. Adjusting Re d a n d Bl u e color so that t he tem p er ature becomes 9200K (x: 286 / y: 294) ±3%.
9. At this time, re-c heck that Hori zontal li ne is white.
If not, Re-adjust Cut-off Adjustment unti l the Horizontal Line becomes pure white.
10. Turn off and on again to return to n ormal mode. Receive APL 100% white signal and Check Chroma
temperatures become 9200K (x: 286 / y: 294) ±3%.
CH o / p
buttons
Pattern
Generator,
Color analyzer
Figure
Color Analyzer
RF
See below
White
Raster
(APL
100%)
Fig. 3
5-4L6300EA
Note: Confirm that Cut Off Adj. is correct after this
adjustment, and attempt Cut Of f Adj. if nee ded.
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
---
TapeM. EQ.Spec.
---
White
CH o / p
buttons
Pattern
Generator
Figure
RFIQW
See below
Black
This bar
just
visible
Fig. 4
3. Input the Monoscope Pattern.
4. Adjust the Focus Control on the FBT to obtain
clear picture.
The following 2 adjustments normally are not
attempted in the field. Only when replacing the
CRT then adjust as a preparation.
12. Purity Adjustment
Purpose: To obtain pure color.
Symptom of Misadjustment: If Color Purity Adjust-
ment is incorrect, large areas of color may not be
properly displayed.
Test PointAdj. PointModeInput
Deflection
---
TapeM. EQ.Spec.
---
Yoke
Purity Magnet
Pattern
Generator
Figure
---
See below.
Red
Color
Note: IQW Setup level --- 7.5 IRE
Use service remote control unit
1. Enter the Service mode. (See page 5-1)
Then input IQW signal from RF Input.
2. Press "MENU" button on the service remote control
unit and Select "BRT" mode. (Display changes
"BRT," "CNT," "CLR," "TNT," "V-TINT" and
"SHARP" cyclically when MENU button is
pressed.) Press "CH o / p" buttons so that the bar
is just visible (See above figure).
3. Turn the power off and on again, using the mai n
power button on the TV unit.
11. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Test PointAdj. PointModeInput
---Focus ControlRF
TapeM. EQ.Spec.
---
Pattern
Generator
Mono-
scope
See below
GREENREDBLUE
Fig. 5
1. Set the unit facing East.
2. Operate the unit for over 30 minutes before adjusting.
3. Fully degauss the unit using an extern al de gaus s ing coil.
4. Loosen the screw on the Deflection Yoke Clamper
and pull the Deflection Yo ke back away from the
screen. (See Fig. 6)
5. Loosen the Ring Lock and adjust th e Purity Mag nets so that a red fi eld is ob tained at the center of
the screen. Tighten Ring Lock. (See Fig. 5, 6)
6. Slowly push the Deflection Yoke toward bell of
CRT and set it where a uniform red field is obtained.
7. Tighten the clamp screw on the Deflection Yoke.
Note: Focus VR (FBT) --- Main CBA,
FBT= Fly Back Transformer
1. Operate the unit more than 30 minutes
2. Face the unit to the East and degauss the CRT using a degaussing coil.
5-5L6300EA
13. Convergence Adjustment
Purpose: To obtain proper conver ge nce o f red , g re en
and blue beams.
Symptom of Misadjustment: If Convergence Adjustment is incorrect, the edge of white letters m ay have
color edges.
Test PointAdj. PointModeInput
C.P. Magnet
Dot Pattern
Crosshatch
---
(RB,)
C.P. Magnet
(RB-G,)
---
Deflection Y o ke
TapeM. EQ.Spec.
---
Pattern
Generator
See below.
Figure
CRT
RB-GRB
RING LOCK
SCREW
C.P. MAGNET CLAMPER
C.P. MAGNET
Fig. 6
DY WEDGE
COIL
SCREW
COIL CLAMPER
DEFLECTION YOKE
PURITY
C.P. MAGNET (RB)
R
or
R
G
G
G
B
Fig. 7
C.B. MAGNET (RB-G)
RB
RB
G
G
Fig. 8
1. Loos en the R ing Loc k and al ign re d with b lue dots
or Crosshat ch at the cent er of the s creen by rot ating
(RB) C.P. Magnets. (See Fig. 7)
2. Align red / blue with green dots at the center of the
screen by rotating (RB-G) C.P. Magnet. (See Fig. 8)
3. Fix the C.P. Magnets by tightening the Ring Lo ck.
4. Remove the DY Wedges and slightly tilt the Deflection Yoke horizontally and vertically t o obtain
the best overall convergence.
5. Fix the Deflection Yoke by carefully inserting the
DY Wedges between CRT and Deflection Yoke.
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 tothe AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
HOT CIRCUIT. BE CAREFUL.
HOTCOLD
AC601
AC CORD
DG691
DEGAUSSING
COIL
CN691
4A/125V
F601
4A/125V
PS691
JS601
L601
LINE
FILTER
Q601
D605 - D608
BRIDGE
RECTIFIER
SWITCHING
T601
6
4
2
4A/125V
CAUTION:
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE 4 A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE 4A, 125V.
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
TP601
+B
7
10
8
Q671
SWITCHING
12
TP300
GND
Q111
+5V
SWITCHING
Q321
+9V
SWITCHING
+B
AL+33V
DEF +B
BACK-UP
+5V CTRL2
(FROM PIN18 OF IC111)
AL+5V
AL+9V
AL+12V
Q602
LIMITER
IC601
ERROR
VOLTAGE DET
111
4
3
1
2
Q662
FEED
BACK
VR661
+B
ADJ
Q675
SWITCHING
P-ON-ON
Q676
SWITCHING
CONTROL
MAIN CBA
Q681
+8V
SWITCHING
Q682
+5V
SWITCHING
Q683
+5V
SWITCHING
P-ON+8V
+8V CTRL
(FROM PIN40 OF IC111)
PROTECT-2
(TO PIN67 OF IC111)
P-ON+5V
+5V CTRL
(FROM PIN28 OF IC111)
P-ON+5V
PROTECT-1
(TO PIN68 OF IC111)
P-ON-H
(FROM PIN79 OF IC111)
6-76-8
L6300BLP
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
Standard Notes
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 highe r vo ltage, wattage, etc. Replacemen t parts th at hav e t hese s pe ci al s afet y ch ar acter isti cs are
identified in this man ual and its supplements; electrical comp onents having such features are ide ntified by the
mark " # " in the schematic diagram and the parts list. Before replacing any of these components, read the parts
list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.
Note:
1. Do not use the part number show n on these drawings for orderi ng. The correct part numbe r is shown in the
parts list, and may be slightly different or amended since these drawings were prepared.
2. All resistance values are indicated in ohms (K=10
3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4. All capacitance values are indicated in µF (P=10
5. All voltages are DC voltages unless otherwise specified.
Note of Capacitors:
ML --- Mylar Cap. PP --- Metallized Film Cap. SC --- Semiconductor Cap. L --- Low Leakage type
3
, M=106).
-6
µF).
Temperature Characteristics of Capacitors are noted with the following:
B --- ±10% CH --- 0±60ppm/°C CSL --- +350~-1000ppm/°C
Tolerance of Capacitors are noted with the following:
Z --- +80~-20%
Note of Resistors:
CEM --- Cement Res. MTL --- Metal Res. F --- Fuse Res.
Capacitors and transistors are represented by the following symbols.
CBA Symbols
(Top View) (Bottom View)
+
(Bottom View)
Transistor or Digital Transistor
E C B
(Top View)
NPN Transistor
Electrolytic Capacitor
(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
7-1L13SC
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON
THE FOLLOWING PAGES:
1. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME
TYPE ___A, ___V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE ___A, ___V.
RISK OF FIRE-REPLACE FUSE AS MARKED.
A V
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defective
before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.
3. Note:
(1) Do not use the part number sh own on the dra wings for orde ring. The correc t part number i s shown in the
parts list, and may be slightly different or amended since the drawings were prepared.
(2) To maintain ori ginal func tion and reli ability of repaired u nits, use only origin al replacem ent parts which are
listed with their part numbers in the parts list section of the service manual.
4. Wire Connectors
(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect).
(2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).
5. Note: Mark "I" is a leadless (chip) component.
6. Voltage indications on the schemat ics are as sho wn belo w:
Plug the TV power cord into a standard AC outlet.:
Voltage
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
: 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.
5.0
(3.0)
231
5.0
(3.0)
Power on mode
Power off mode
Indicates that the voltage
is not consistent here.
Unit: Volts
3
AREA D3
2
1
AREA B1
1-D3
ABCD
1-B1
: Used to indicate a test point with a test pin.
7-2L13SC
Main 1/3 Schematic Diagram
VIDEO SIGNAL
AUDIO SIGNAL
A4
A3
B4
B3
C4
C3
D4
D3
E4
E3
F4
F3
MAIN 1/3
Ref No.Position
ICS
IC111
IC151
IC801
TRANSISTORS
Q111D-1
Q321E- 2
CONNECTORS
CN301
CN801A-1
C-2
A-4
B-1
A-4
A2
A1
B2
B1
7-37-4
C2
C1
D2
D1
E2
E1
F2
F1
L6300SCM1
Main 2/3 Schematic Diagram
IF SIGNAL
VIDEO SIGNAL
AUDIO SIGNAL
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.
4A/125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
FIRE, REPLACE ONL Y WITH THE SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
The Capacitor ( C643 ) is either type A or type B.
These two types are exchangeable and can be
equally used whichever the model is . The difference
between type A and type B is shown in the table below.
Type A
Type B
7-6
L1
C643 C642 JS642
0.01/250V
4700P/250V
0.01/250V
Not Used
Not Used
WIRE
L6300SCM2
Main 3/3 & CRT Schematic Diagram
TEST PO IN TS
MAIN 3/3
Ref No.Position
IC
IC551
TRANSISTORS
Q571
Q572
CONNECTORS
CN571
WH301AP-2
WH501AP-2
M-3
O-2
O-2
N-3
CRT CBA
Ref No.Posit i o n
TRANSISTORS
Q501
Q502
Q503
CONNECTORS
CN501R-2
WH301BQ-2
WH501BQ-2
Q-2
Q-2
R-2
M3
M2
N3
N2
O3
O2
VIDEO SIGNAL
P3
P2
TP300
TP601O-2
O-2
Q3
Q2
R3
R2
M1
N1
7-7
O1
P1
Q1
7-8
R1
L6300SCM3
Main CBA Top View
IC111
IC151
IC801
Q662
Q671
CN301
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.
TP601
+B
FOCUS-VR
(UPPER SIDE)
SCREEN-VR
(LOWER SIDE)
TP300
GND
4A/125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
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
SLOWL Y , WHEN TROUBLESHOOTING THIS TYPE POWER SUPPL Y
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
MAIN CBA
Ref No.Positi on
WH301AC-2
WH501AA-2
VARI ABL E R ESIST O R
ICS
IC31
IC551
IC601
TRANSISTORS
Q31
Q111E-2
Q321C-1
Q571
Q572
Q601
Q602
Q675
Q676
Q681
Q682
Q683
CONNECTORS
CN571
CN691
CN801
TEST PO IN TS
TP300
TP601
VR661A-1
B-1
D-1
E-2
B-2
C-4
E-1
C-1
B-3
B-2
B-4
B-4
C-3
C-3
C-2
C-2
D-3
D-3
D-3
A-1
A-3
C-4
D-1
A-3
A-4
VR661
+B ADJ
7-9
7-10
BL6400F01013-1
Main CBA Bottom View
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
4A/125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
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
SLOWL Y , WHEN TROUBLESHOOTING THIS TYPE POWER SUPPL Y
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
WF8
Q571
Base
WF7
Q572
Collector
WF9
PIN 1
OF CN571
WF12
PIN 4
OF CN571
WF10
PIN 3
OF WH501A
WF11
PIN 7
OF IC551
WF1
PIN 3
OF IC31
WF16
PIN 8
OF TU1
WF6
PIN 11
OF IC31
WF2
PIN 14
OF IC111
7-117-12
BL6400F01013-1
CRT CBA Top ViewCRT CBA Bottom View
CRT CBA
Ref No.Position
TRANSISTORS
Q501B- 2
Q502
Q503
CONNECTORS
CN501A-1
WH301BB-1
WH501BB-1
B-2
B-2
WF13
Q503
Collector
WF5
Q503
Base
WF4
Q502
Base
WF14
Q502
Collector
WF3
Q501
Base
WF15
Q501
Collector
7-13BL6400F01013-27-14
WF1 ~ WF16 = Waveforms to be observed at
Waveform check points.
(Shown in Schematic Diagram.)
WAVEFORMS
Input: NTSC Color Bar Signal (with 1kHz Audio Signal)
INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes.
reconnect to AC outlet and then turn power on.
(Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%)
WF1
WF2
1DIV: 0.5V 20µsec
IC 31 Pin 3
1DIV: 0.5V 20µsec
IC 111 Pin 14
GND
WF5
WF6
1DIV: 2V 20µsec
Q 503 Base
1DIV: 0.2V 20msec
IC 31 Pin 11
GND
WF9
WF10
1DIV: 200V 20µsec
CN 571 Pin 1
1DIV: 5V 20µsec
WH501A Pin 3
GND
GND
WF13
WF14
1DIV: 20V 20µsec
Q503 Collector
1DIV: 20V 20µsec
Q 502 Collector
WF3
WF4
1DIV: 2V 20µsec
Q501 Base
1DIV: 2V 20µsec
Q 502 Base
GND
GND
GND
WF7
WF8
8-18-2
1DIV: 10V 20µsec
Q 572 Collector
1DIV: 5V 20µsec
Q 571 Base
WF11
1DIV: 2V 5msec
IC 551 Pin 7
10 V5 ms
WF12
1DIV: 10V 5msec
CN 571 Pin 4
WF15
WF16
1DIV: 20V 20µsec
Q 501 Collector
1DIV: 0.2V 20µsec
TU 1 Pin 8
L13WF
WIRING DIAGRAM
V501
CRT
CLN551
CN501
GND
ANODE
FOCUS
SP801
SPEAKER
SCREEN
CLN801
CN801
SPEAKER1
SP-GND2
CN691
1
2
TU1 TUNER UNIT
MAIN CBA
BL6400F01013-1
T571
FBT
CRT CBA
BL6400F01013-2
WH301B
+8V
GND
RED
GREEN
BLUE
+160V 1
GND
HEATER
1
2
3
4
5
2
3
DY551
D.Y.
HD
VD
AC601
CLN301
CLN501
WH301A
+8V
1
2
GND
3
RED
4
GREEN
5
BLUE
WH501AWH501B
+160V1
2
GND
3
HEATER
CN571
1
2
3
4
5
(NO CONNECTION)
CN301
1
NU
2
I2C-OPEN
3
GND
4
SDA
5
SCL
CN301 IS USED FOR
ADJUSTMENT AT
FACTORY
9-1L6300WI
IC PIN FUNCTIONS
IC111(TV Micro Computer)
Pin
Signal NameFunction
No.
1GNDGND
2N.U.Not Used
3N.U.Not Used
4N.U.Not Used
5GNDGND
6VCCAL+5V
7N.U.Not Used
8FILTFILT
9HLFFilter for CCD
10 VHOLDVHOLD
11 CVINInput for Video Signal
12 RESETRESET
MCU RESET
13
OUT
14 Y-SW OUTComposite Signal Output
15 GNDGND
16 3.58 X'TAL3.58MHz Crystal
17 C-APCCHROMINANCE APC
MCU 5.7REG
18
OUT
19 N.U.Not Used
20 N.U.Not Used
21 N.U.Not Used
22 VCCVCC
23 N.U.(GND)
24 CVBS IN2Composite Signal Input 2
25 AUDIO IN2Audio Signal Input 2
26 CVBS IN1Composite Signal Input 1
27 AUDIO IN1Audio Signal Input 1
28 5.7V REG OUT5.7V Output
29 N.U.Not Used
30 N.U.Not Used
31 V REG VCCDC 8.7V Input
32 FSC OUTClock Output 3.58MHz
33 N.U.Not Used
AUDIO ATT
34
OUT
RESET Signal Output
Micro controller Control
Voltage Output
Audio Signal Output
Pin
Signal NameFunction
No.
35 N.U.Not Used
36 N.U.Not Used
37 V RAMP F/BV Ramp Feed Back
38 V RAMP OUTVertical Output
39 V RAMP CAPV Ramp OSC Capacitor
40 8.7 VREG OUTDC 8.7V Output
41 N.U.Not Used
42 H VCO F/BH Vco Feed Back
43 AFC FILTHorizontal AFC Filter
44 GNDGND
45 FBP INFlyback Pulse Input
46 H-OUTH Pulse Output
47 VCCVcc
48 VCCVcc
49 VCCVcc
50 R OUTRed Output
51 G OUTGreen Output
52 B OUTBlue Ou tput
53 ACLIB-Input
54 N.U.Not Used
55 N.U.Not Used
56 SDA
57 N.U.Not Used
58 SCL
59 N.U.(GND)
60 N.U.Not Used
61 N.U.(+5V)
62 N.U.Not Used
63 EXT-HEXT-H
64 A-MUTE-HAudio Mute
65 N.U.Not Used
66 KEY-IN 1Key Input 1 (Main)
67 PROTECT 2Power Supply Protection
68 PROTECT 1Power Supply Protection
69 KEY-IN 2Key Input 2 (Main)
70 RCV-INInput For Remote Control
I2C-BUS Controller Interface
(Data)
I2C-BUS Controller Interface
(Clock)
10-1L6307PIN
Pin
Signal NameFunction
No.
71 N.U.Not Used
72 I2C OPEN
73 AFTAFT Voltage Input
74 N.U.Not Used
75 AGCAGC Voltage Input
76 PROTECT 3Power Supply Protection
77 N.U.Not Used
78 FM-SWSwitching IF IC VCO
79 P-ON-HOutput for P-ON-H
80 N.U.Not Used
White Balance Adjustm ent
Judgement
10-2L6307PIN
Cabinet
L1
B4
Details for DY551
and surrounding parts
CLN801
SHINWHA
TAPE SGT-730
(WHITE)
B2
CLN551
EXPLODED VIEWS
SHINWHA
TAPE SGT-730
(BLACK)
V501-2
ANODE CAP
Part of Flyback
Transformer
V501-1
DY551
DY551
DG691
CRT CBA
L2
A4
L2
L2
A3
B5
L2
SP801
B2
B3
A1
V501
B1
B2
B2
SCOTCH
TAPE #880
MAIN CBA
PB2
PL1
PL1
PB1
PB3
PB4
AC601
A2
11-111-2L6300CEX
Packing
S2
S5
S2
S4
X1
X2
X5
X3
X4
TAPE
S3
X6
PACKING TAPE
S6
FRONT
S1
PACKING TAPE
11-3L6300PEX
MECHANICAL PARTS LIST
PRODUCT SAFETY NOTE: Products marked with a
# have special characteristics important to safety.
Before replacing any of these compone nts, read carefully the product safety notice in this service manual.
Don't degrade the safety of the product through
improper servicing.
NOTE:
Parts that are not assign ed part numbers (---------) are
not available.
1. V501 (CRT) HAS COUPLE OF SUBSTITUTIONAL PAR TS AND EACH PAR TS
ALSO HAS MATCHING COMBINATION WITH DY551.
PLEASE SEE TABLE 1 FOR DET AILS OF MA T CHING COMBINA TION.
2. DY551 (DEFLECTION YOKE) HAS MATCHING COMBINATION WITH V501.
PLEASE SEE TABLE 1 FOR DET AILS OF MA T CHING COMBINA TION.
Note 1: Purity and Convergence Adjus tments must be
performed following C RT replacement. Refe r to Electr ical Adjustment Instructions.
CRT Warning Label Location
CRT Type No.
CRT
CRT Warning
Label
Note 2: Please confirm CRT Type No. on the CRT
Warning Label which is locate d on the CRT. Then See
the Table 1 for V501 and DY551 combination chart.
Please refer this CRT, Deflection Yoke combination
chart for parts order.
# have special characteristics important to safety.
Before replacing any of these compone nts, read carefully the product safety notice in this service manual.
Don't degrade the safety of the product through
improper servicing.
NOTES:
1.Parts that are not assigned part num bers (---------)
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%
MMA CBA
Ref. No.DescriptionPart No.
MMA-384 CBA0ESA04985
Consists of the following
MAIN CBA-------------CRT CBA--------------
MAIN CBA
Ref. No.DescriptionPart No.
MAIN CBA
Consists of the following
CAPACITORS
C2ELECTROL YTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C3ELECTROL YTIC CAP. 4.7µF/50V M orCE1JMASTL4 R7
ELECTROLYTIC CAP. 4.7µF/50V MCE1JMASDL4R7
C31ELECTROLYTIC CAP . 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C32CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B1 03
C34ELECTROLYTIC CAP . 0. 47µF/50V M orCE1JMASTLR47
ELECTROLYTIC CAP. 0.47µF/50V MCE1JMASDLR47
C35CHIP CERAMIC CAP. CH J 5 6pF/50VCHD1JJBCH560
C36CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C37ELECTROLYTIC CAP . 1µF/50V M orCE1JMASTL1R0
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASDL010
C38ELECTROLYTIC CAP . 10 µF/50V M orCE1JMASTL100
ELECTROLYTIC CAP. 10µF/50V MCE1JMASDL100
C40CHIP CERAMIC CAP. B K 0.015µF/5 0VCHD1JKB0B153
C41ELECTROLYTIC CAP . 0. 47µF/50V M orCE1JMASTLR47
ELECTROLYTIC CAP. 0.47µF/50V MCE1JMASDLR47
C51CHIP CERAMIC CAP. B K 1000pF/50VCHD1JKB0B102
C52CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B1 03
C53ELECTROLYTIC CAP . 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C54CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B1 03
C55CHIP CERAMIC CAP. B K 0.01µF/50VCHD1JKB0B1 03
ELECTROLYTIC CAP. 4.7µF/50V MCE1JMASDL4R7
C113CHIP CERAMIC CAP . F Z 0.1µF/25VCHD1EZB0F104
C114FILM CAP .(P) 0.001µF/50V J orCMA1JJS00102
FILM CAP.(P ) 0.001 µF/ 50V JCA1J102MS029
C115ELECTROLYTIC CAP. 0.1µF/50V M orCE1JMASTLR10
ELECTROLYTIC CAP. 0.1µF/50V M orCE1JMASDLR10
ELECTROLYTIC CAP. 0.1µF/50V MCE1JMASDL0R1
C116CHIP CERAMIC CAP. CH J 220pF/50VCHD1JJBCH221
C117CHIP CERAMIC CAP . B K 0.01µF/50VCHD1JKB0B103
C118CHIP CERAMIC CAP . B K 0.015µF/50VCHD1JKB0B153
C119ELECTROLYTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C120CHIP CERAMIC CAP . B K 0.01µF/50VCHD1JKB0B103
C132CHIP CERAMIC CAP . F Z 0.1µF/25VCHD1EZB0F104
C133CHIP CERAMIC CAP . B K 0.01µF/50VCHD1JKB0B103
C151CHIP CERAMIC CAP . B K 0.01µF/50VCHD1JKB0B103
C152CERAMIC CAP .(AX) B K 220pF/50VCCA1JKT0B221
C153CERAMIC CAP .(AX) B K 220pF/50VCCA1JKT0B221
C155ELECTROLYTIC CAP. 47µF/16V M orCE1CMASTL470
ELECTROLYTIC CAP. 47µF/16V MCE1CMASDL470
C156CHIP CERAMIC CAP . F Z 0.1µF/25VCHD1EZB0F104
C301CHIP CERAMIC CAP. CH J 120pF/50VCHD1JJBCH121
C302ELECTROLYTIC CAP. 1µF/50V M orCE1JMASTL1R0
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASDL010
C303CHIP CERAMIC CAP . B K 0.015µF/50VCHD1JKB0B153
C306ELECTROLYTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C308ELECTROLYTIC CAP. 0.1µF/50V M orCE1JMASTLR10
FILM CAP.(P) 0.068µF/50 V JCA1J683MS029
C612CERAMIC CAP . LB 330pF/2KV orCA3D331KG004
CERAMIC CAP . BN 330pF/2KV orCCD3DKA0B331
CERAMIC CAP. 330pF/2KVCA3D331PAN04
Ref. No.DescriptionPart No.
C616FILM CAP .(P) 0.039µF/50V J orCMA1JJS00393
FILM CAP.(P ) 0.039 µF/ 50V JCA1J393MS029
C617CERAMIC CAP .(AX) B K 330pF/50VCCA1JKT0B331
If C642 is 0.01µF , then C643 is 0.01µF.
C642#SAFETY CAP. 10000pF/250V orCCG2EMA0F103
#SAFETY CAP. F M 0.01µF/250V orCCG2EMP0F103
#CERAMIC CAP . 0.01µF F CSCCG2HMN0F103C643#SAFETY CAP. 10000pF/250V orCCG2EMA0F103
#SAFETY CAP. F M 0.01µF/250V orCCG2EMP0F103
#CERAMIC CAP . 0.01µF F CSCCG2HMN0F103
If C643 is 4700pF , then JS642(PCBJUMPER) is used.
CERAMIC CAP . BN J 220pF/2KV orCCD3DKA0B221
CERAMIC CAP . 220pF/2KVCA3D221PAN04
C654#ELECTROL YTIC CAP. 1µF/50V M orCE1JMASTL1R0
#ELECTROLYTIC CAP . 1µF/50V M orCE1JMASDL1R0
#ELECTROLYTIC CAP . 1µF/50V MCE1JMASDL010C656#ELECTROL YTIC CAP. 100µF/160V M orCE2CMZPTL101
#ELECTROLYTIC CAP . 100µF/160V MCE2CMZNDL101C657#ELECTROL YTIC CAP. 1000µF/35V M orCE1GMZNTL102
#ELECTROLYTIC CAP . 1000µF/35V M orCE1GMZNDL102
#ELECTROLYTIC CAP . 1000µF/35V MCE1GMZADL102C658#ELECTROL YTIC CAP. 1000µF/16V M(VR/HC) orCE1CMZNTL102
#ELECTROLYTIC CAP . 1000µF/16V M orCE1CMZPDL102
#ELECTROLYTIC CAP . 1000µF/16V MCE1CMZADL102
C667ELECTROLYTIC CAP. 1µF/50V M orCE1JMASTL1R0
ELECTROLYTIC CAP. 1µF/50V M orCE1JMASDL1R0
ELECTROLYTIC CAP. 1µF/50V MCE1JMASDL010
C681ELECTROLYTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C682ELECTROLYTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C683ELECTROLYTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C686ELECTROLYTIC CAP. 33µF/16V M orCE1CMASTL330
ELECTROLYTIC CAP. 33µF/16V MCE1CMASDL330
C687ELECTROLYTIC CAP. 100µF/10V M orCE1AMASTL101
ELECTROLYTIC CAP. 100µF/10V MCE1AMASDL101
C692ELECTROLYTIC CAP. 47µF/160V M orCE2CMZPTL470
ELECTROLYTIC CAP. 47µF/160V M W/FCE2CMZNDL470
C701CHIP CERAMIC CAP. CH J 100pF/50VCHD1JJBCH101
C711CERAMIC CAP .(AX) X K 1200pF/16VCDA1CKT0X122
C805ELECTROLYTIC CAP. 220µF/16V M orCE1CMASTL221
ELECTROLYTIC CAP. 220µF/16V MCE1CMASDL221
C811ELECTROLYTIC CAP. 470µF/16V M orCE1CMASTL471
ELECTROLYTIC CAP. 470µF/16V MCE1CMASDL471
C821CERAMIC CAP .(AX) X K 3300pF/16VCDA1CKT0X332
C822CHIP CERAMIC CAP . F Z 0.22µF/16VCHD1CZB0F224
C823CHIP CERAMIC CAP . F Z 0.47µF/10V orCHD1AZB0F474
CHIP CERAMIC CAP . F Z 0.47µF/16VCHD1CZB0F474
CONNECTORS
CN571CONNECTOR BASE, 5P TV -50P-05-V3 orJ3TVC05TG002
CONNECTOR BASE, 5P RTB-1.5-5PJ3RTC05JG001
CN691CONNECTOR BASE, 2P TV -50P-02-V3 orJ3TVC02TG002
CONNECTOR BASE, 2P RTB-1.5-2PJ3RTC02JG001
CN801STRAIGHT CONNECTOR BASE 00 8283 0212
IC:EEPROM CAT24WC02JINSZBA0SBG001
IC551#VERTICAL O UTPUT IC LA78040A orQSBBA0SSY003
#VERTICAL OUTPUT IC AN5522QSZBA0SMS002
IC601#PHOTOCOUPLER PS2501-1W orQPEW0PS25011
#PHOTO COUPLER PS2501-1L orQPEL0PS25011
#PHOTOCOUPLER LTV-817B-F orNPEB0LTV817 F
#PHOTOCOUPLER LTV-817C-FNPEC0LTV817F