Symphonic SRC2213, SRC22134, SRC22194 Schematic
SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
13" COLOR
TV/VCR
COMBINATION
SRC2213/SRC22134
Sec. 3: Exploded views
and Parts List Section
I Exploded views
I Parts List
19" COLOR
TV/VCR
COMBINATION
SRC22194
IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all
Funai Equipment. The service procedures recommended by Funai and
described in this service manual are effective methods of performing service
operations. Some of these service special tools should be used when and as
recommended.
It is important to note that this service manual contains various CAUTIONS
and NOTICES which should be carefully read in order to minimize the risk of
personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand
that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Funai could not
possibly know, evaluate and advice the s ervice trade of al l conceivable ways
in which service might be done or of the possible hazardous consequences of
each way. Consequently, Funai has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by
the service method selected.
MAIN SECTION
13"/19" COLOR TV/VCR COMBINATION
SRC2213/SRC22134/SRC22194
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
TABLE OF CONTENTS
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1-1
Important Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2-1
Standard Notes for Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3-1
Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Operating Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8-1
Mechanical Trouble Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-15
Power Supply Trouble Shooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-17
Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9-1
Waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10-1
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-1
System Control Timing Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12-1
IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14-1
SPECIFICATIONS
*ˆMode---------SP mode unle ss otherwise specified
*Test input terminal
<Except Tuner>-------------Video input (1Vp-p)
Audio input (-10dB)
<Tuner>-----------------------Ant. input (80dBµV) Video: 87.5%
Audio: 25kHz dev (1kHz Sin)
<DEFLECTION>
[ SRC2213/ SRC22134 ]
Description Condition Unit Nominal Limit
1. Over Scan — % 90 —
2. Linearity Horizontal % — 15
Vertical % — 10
3. High Voltage — kV 22 —
[ SRC22194 ]
Description Condition Unit Nominal Limit
1. Over Scan — % 90 —
2. Linearity Horizontal % — 15
Vertical % — 10
3. High Voltage — kV 25 —
<VIDEO & CHROMA>
[ SRC2213/ SRC22134 ]
Description Condition Unit Nominal Limit
1. Misconvergence Center m/m — 0.3
Corner m/m — 1.5
Side m/m — 1.2
2. Tint Control Range — deg ±30 —
3. Contrast Control Range — dB 6 4
4. Brightness APL 100% ft-L 55 40
5. Color Temperature — K 9200 —
1-1-1 T5307SP
[ SRC22194 ]
Description Condition Unit Nominal Limit
1. Misconvergence Center m/m — 0.3
Corner m/m — 1.5
Side m/m — 1.2
2. Tint Control Range — deg ±30 —
3. Contrast Control Range — dB 6 4
4. Brightness APL 100% ft-L 35 40
5. Color Temperature — K 9200 —
<VCR>
Description Condition Unit Nominal Limit
1. Horizontal Resolution (R/P) Line 230 200
2. Jitter (Low) (R/P) µS 0.05 0.2
3. S/N Chroma AM(SP) (R/P) dB 38 33
PM(SP) (R/P) dB 36 33
4. Wow & Flutter (RMS) (R/P) % 0.25 0.5
<TUNER>
Description Condition Unit Nominal Limit
1. Video S/N — dB 45 40
2. Audio S/N (W/LPF) — dB 43 40
<AUDIO>
All items are measured across 8Ω resistor at speaker output terminal.
Description Condition Unit Nominal Limit
1. Audio Output Power (Max.) (R/P) W 1.0 0.8
2. Audio S/N (W/LPF) (R/P) dB 40 36
3. Audio Distortion (W/LPF) (R/P) % 3.0 5.0
4. Audio Freq. Response
(-10dB Ref. 1KHz)
200Hz (R/P)
8kHz (R/P)
dB
dB
-2.0
0
-2.0±5.0
0±6.0
Note: Nominal specific ations represent the des ign specifications. Al l units should be abl e to approximate these .
Some will exceed a nd so me may dro p slightl y below these spec ifica tions. Li mit s pecific ations repre sent t he abs olute worst conditio n that still might be co nsidered a cceptable. In n o case sho uld a unit fai l to meet limi t specific ations.
1-1-2 T5307SP
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory , our pro ducts are strictl y insp ected for re cogni zed product safety and el ectric al
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 bui lt-in prot ective devices a re de-
fective and have b een defeated during servicing.
(1) Protective shields are provided on this chassis
to protect both the technician and the customer.
Correctly replace all missing protective shields, including any removed for servicing convenience.
(2) When reinstalli ng the cha ssis and/o r other as sembly 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 compartmen t covers/shields, and
isolation resistor/capacitor networks. Do not oper-
ate this instrument or permit it to be operated
without all protective devices correctly installed and functioning. Servicers who defeat
safety features or fail to perform safety checks
may be liable for any resulting damage.
b. Be sure that there are no cabinet openings through
which an adult or child might be able to insert their
fingers and contact a hazardous voltage. Such
openings include, but are not limited to, ( 1) spacing between the picture tube and the cabinet
mask, (2) excessively wide cabinet ventilation
slots, and (3) an improperly fitted and/or incorrectly
secured cabinet back cover.
c. Antenna Cold Check - With the instrument AC
plug removed from any AC source, connect an
electrical jumper acr oss the two AC plug prongs.
Place the instrument AC switch in the on 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 sy stem tha t complies 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
CURRENT
TESTER
EARTH
GROUND
ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL
SHOCK HAZARD THAT MUST BE ELIMINATED
BEFORE RETURNING THE INSTRUMENT TO
THE CUSTOMER OR BEFORE CONNECTING
THE ANTENNA OR 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 -
1-2-1 SFTY_2
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 r ec 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 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 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.
1-2-2 SFTY_2
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
When replacing the power transformer in sets
where the connections between the power cord
and power transformer primary lead wires are performed using crimp type connectors, in order to
prevent shock hazards, perform carefully and precisely the following steps.
Replacement procedure
1) Remove the old con nector by cutti ng 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 in su lation from the en ds
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 too l to crimp the met al slee ve at
the center position . Be sure to crimp fully to the
complete closure of the tool.
L. When connecting or disconnecting the VCR con-
nectors, f irst, di sconnec t the AC plug fr om AC supply socket.
1-2-3 SFTY_2
Safety Check after Servicing
Examine the area surrounding the repaired location
for damage or deterioration. Observe that screws,
parts and wires have been returned to origina l positions. Afterwards, perfo rm the fol low ing tests and con firm the specified values in orde r to verify comp liance
with safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified cleara nce distanc e (d) and (d') b etween sol dered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
Chassis or Secondary Conductor
Primary Circuit Terminals
dd’
AC Line Voltage Region
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, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across both terminals of
load Z. See Fig. 2 and following table.
Table 2 : Leakage current ratings for selected areas
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:
110 to 130 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
USA or
CANADA
0.15µF CAP. & 1.5 kΩ
RES. connected in
parallel
1-2-4 SFTY_2
i≤0.5mA rms
Exposed accessible
parts
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as shown:
Top View
Out
2. For other ICs, pin 1 and every 5th pin is indica ted
as shown:
Pin 1
3. The 1st pin of every pin connector are indicated as
shown:
Pin 1
Input
In
Bottom View
5
10
How to Read the Values of the Rectangular Type Chip Components
Example:
(a) Resistor
473
= 473 = 47 [kΩ]
(b) Capacitor
= Not Shown
Caution:
Once chip parts (Resistors, Capacitors, Transistors,
etc.) are removed, they must not be reused. Always
use a new part.
Replacement Procedures for
(Top View)
(Top View)
Instructions for Connectors
1. When you conn ect or disconnect FFC cable (connector), be sure to disconnect the AC cord.
2. FFC ca ble (connector) should be inserted para llel
into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
[ CBA= Circuit Board Assembly ]
Leadless (Chip) Components
The Following Procedures are Recommended for the Replacement of the Leadless Components Used in this Unit.
1. Preparation for replacement
a. Soldering Iron
Use a pencil-type soldering iron (less than 30
watts).
b. Solder
Eutectic solder (Tin 63%, Lead 37%) is recommended.
c. Soldering time
Do not apply heat for more than 4 seconds.
d. Preheating
Leadless capacitor must be preheated before
installation. (130°C~150°C, for about two minutes.)
Notes:
a. Leadless components must not be reused after
removal.
b. Excessive mechanical stress and rubbing for the
component electrode must be avoided.
2. Removing the leadless component
Grasp the leadless component body with tweezers
and alternately apply heat to both electrodes. When
the solder on both electrodes has melted, remove
leadless component with a twisting motion.
1-3-1 SFTY_5
Notes:
a. Do not attemp t to lift the component off the board
until the component is completely disconnected
from the board by the twisting action.
b. Take care not to break the copper foil on the
printed board
3. Installing the leadless component
a. Presolder the contact points of the circuit board.
b. Press the part downward with tweezers and solde r
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
2. Th e Flat Pack-IC on the CBA is affixe d with glue,
so be careful not to break or damage the foil of
each pin or solder l ands u nder the IC when removing it.
1. Removal
With Hot - Air Flat Pack - IC Desoldering Machine:
a. Prepare the Hot - Air Flat Pack - IC Desoldering
Machine, then apply hot air to Flat Pack - IC (about
5~6 seconds). (Fig. S-1-1)
b. Remove the Flat Pack- IC with tweezers while
applying the hot air.
With Soldering Iron:
a. Using desoldering braid, remove the solder from all
pins of the Flat Pack - IC. When you use solder flux
which is applied to all pins of the Flat Pack - IC, you
can remove it easily. (Fig. S-1-3)
b. Lift each lead of the Flat Pack - IC upward one by
one, using a sharp pin or wire to which sol der will
not adhere (iron wi re). When hea ting the pins, u se
a fine tip soldering iron or a hot air Desoldering
Machine. (Fig. S-1-4)
With Iron Wire:
a. Using desoldering braid, remove the solder from all
pins of the Flat Pack - IC. When you use solder flux
which is applied to all pins of the Flat Pack - IC, you
can remove it easily. (Fig. S-1-3)
b. Affix the wire to a workbench or solid mounting
point, as sh own in Fig. S-1-5.
c. Pull up on the wire a s the sold er melts so as to l ift
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 solde ring iron, care must be taken
to ensure that the Flat Pa ck - IC is not being held
by glue, or when it is removed from the CBA, it
may be damaged if force is used.
Presolder
How to Remove / Install Flat Pack IC
Caution:
1. Do not apply the hot air to the chip parts around the
Flat Pack-IC for over 6 seconds as damage may
occur to the chip parts. Put Mas king Tape around
the Flat Pack-IC to pro tect other parts from damage. (Fig. S-1-2)
2. Installation
a. Using desoldering braid, remove the solder from
the foil of each pin of the Flat Pack - IC on the CBA,
so you can install a replacement Flat Pack - IC
more easily.
b. The "I" mark on the Flat Pack - IC indicates p in 1
(See Fig. S-1-6). Make s ure t his mar k matches the
1 on the CBA when positioning for installation.
Then pre - solder the four corners of the Flat PackIC (See Fig. S-1-7).
c. Solder all pins of the Flat Pack - IC. Make sure that
none of the pins have solder bridges.
1-3-2 SFTY_5
Fig. S-1-1
Hot Air Blower
or
Iron Wire
Soldering Iron
To Solid
Mounting Point
CBA
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-2
Desoldering Braid
Hot-air
Flat Pack-IC
Desoldering
Machine
Flat Pack-IC
Fig. S-1-5
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-6
Presolder
Fine Tip
Soldering Iron
Soldering Iron
Fig. S-1-3
Flat Pack-IC
CBA
Fig. S-1-7
Sharp
Pin
Fig. S-1-4
1-3-3 SFTY_5
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potent ial difference caus ed by electrostatic charge during unpacking or repair work.
Ground for Human Body
Be sure to wear a gr oundi ng ba nd (1MΩ) that is prop erly grounded to r emo ve any st at ic elec tri city tha t ma y
be charged on the body.
Ground for Work Bench
Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the work bench or
other surface, where the semiconductors are to be
placed. Because the static electricity charge on the
clothing will not escape through the body grounding
band, be careful to avoid contacting semiconductors to
clothing.
Incorrect
Correct
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-3-4 SFTY_5
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 Insulation Tape or enter the service
mode to activate Sensor Inhibition automatically.
Note: Avoid playing, rewinding or fast forwar ding the
tape to its beginning or end, because both Tap e End
Sensors are not active.
How to Enter the Service Mode
1. Turn power on.
2. Use servic e remote control unit and press WAKEUP/SLEEP key. (See page1-7- 1)
3. When e ntering the servic e mode, one of th e number (1, 2 or 4) will display at corners of the screen.
4. During the service mode, electrical adjustment
mode can be selected b y rem ote co ntrol key. (S ervice remote control unit).
Details are as follows.
Key Adjustment Mode
Picture adjustment mode: Press the
MENU button to change from BRT
(Bright), *CNT (Contrast), *CLR
MENU
0
1 No need to use.
2
3
4
5
(Color), *TNT(Tint) and *V-T. Press
CH UP/DOWN key to display Initial
Value. *Marked items are not necessary to adjust normally.
C-Trap and Y DL Time adjustment
mode: See adjustment instructions
page 1-7-3.
AGC/H adjustment mode: See adjustment instructions page 1-7-2.
Auto AFT adjustment mode: See
adjustment instructions page 1-7-2.
Auto record mode: Perform recording
(15 Sec.)-->Stop-->Rewind (Zero
return) automatically.
Head switching point adjustment
mode: See adjustment instructions
page 1-7-6.
Key Adjustment Mode
6 No need to use.
Purity check mode: Shows Red,
7
8
9
Caution: 2
1. Th e deck mec hanism assem bly is mounte d 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 servici ng, this switch c an not be operated automatically .
Green, Blue or White cyclically on the
screen each time the “7” key is
pressed.
H. Shift adjustment mode: See adjustment instructions page 1-7-4.
V.size/V. shift adjustment: See adjustment instructions page 1-7-4.
Preparing: 2
1. To eject the tape, press the STOP/EJECT button
on the unit (or Remote Control).
2. Whe n yo u want to record during the Se rv ice m ode,
press the Rec button while depressing SW211
(REC-SAFETY SW) on the Main CBA.
Q201
(END SENSOR)
SW211
(REC-SAFETY SW)
Q202
(START SENSOR)
MAIN CBA
1-4-1 T5307PFS
OPERATING CONTROLS AND FUNCTIONS
[ SRC2213 ]
NOTE:
We do not recommend the use of universal remote controls. Not all of the functions may be controlled with
•
a universal remote control.
If you decide to use a universal remote control with this unit, please be aware that the code number given
may not operate this unit. In this case, please call the manufacturer of the universal remote control.
- TV/VCR FRONT PANEL -
AUDIO EARPHONEVIDEO STOP/EJECT REW PLAY F.FWD REC/OTRCHANNELVOLUMEPOWER
- REMOTE CONTROL -
POWER
3
123
15
456
789
MENU
0
DISPLAY MUTE
16
17
8
REW
7
12
18
19
RECORD
T-PROG.
CLEAR
COUNTER
RESET
20
1 92 3 4 5 6 7 8 131011 1412
1
VIDEO input jack– Connect to the video output
jack of your video camera or another VCR.
2
AUDIO input jack– Connect to the audio output
jack of your audio equipment, video camera or
another VCR.
POWER button– Press to turn TV/VCR on and
3
off. Press to activate timer recording.
VOLUME X/ Ybuttons– Adjust the volume
4
level.
CHANNEL K / L buttons– Press to select the
5
desired channels for viewing or recording.
You may display the main menu on the TV screen
by pressing repeatedly this button on the
TV/VCR.
TRACKING function– Press to minimize video
‘noise’ (lines or dots on screen) during playback
mode.
6
Remote Sensor Window– Receives the infrared
signals from the remote control.
STOP button– Press to stop the tape motion.
7
EJECT button– Press in the Stop mode to remove
tape from TV/VCR.
button–
L
Press to select setting modes from the on screen
•
menu.
Press to enter digits when setting program.
•
(for example: setting clock or timer program)
PLAY
STOP
WAKE-UP
/SLEEP
+100
SPEED
GAME
EJECT
CHANNEL
RETURN
CHANNEL
VOLUME
F.FWD
PA USE/STILL
TIME SEARCH
25
7
24
5
4
23
9
10
22
21
1-5-1 T5307IB
- REAR VIEW -
ANT.
2726
8 REW button– Press to rewind the tape, or to view
the picture rapidly in reverse during playback
mode. (Rewind Search)
button–
s
Press to select a mode from a particular menu.
•
(for example: LANGUAGE or USER’S SET UP)
PLAY button– Press to begin playback.
9
button–
K
Press to select setting modes from the on screen
•
menu.
Press to enter digits when setting program.
•
(for example: setting clock or timer program)
F.FWD button– Press to rapidly advance the tape,
10
or to view the picture rapidly in forward during
playback mode. (Forward Search)
B
button–
When setting program (for example: setting clock
•
or timer program), press to determine your selection and proceed to the next step you want to
input.
Press to determine setting modes from on screen
•
menu.
Press to select a mode from a particular menu.
•
(for example: LANGUAGE or USER’S SET UP)
REC button– Press for manual recording.
11
OTR button– Activates One Touch Recording.
(only on the TV/VCR)
12
RECORD indicator– Flashes during recording.
Lights up in the Stand-by mode for Timer
Recording.
EARPHONE jack– Connects to earphones (not
13
supplied) for personal listening. The size of jack is
1/8” monaural (3.5mm).
Cassette compartment
14
15 Number buttons– Press to select desired channels
for viewing or recording. To select channels from
1 to 9, first press the 0 button and then 1 to 9.
+100 button– When selecting cable channels
which are higher than 99, press this button first,
then press the last two digits. (To select channel
125, first press the “+100” button then press “2”
and “5”).
16
MENU button– Press to display the main menu on
the TV screen.
DISPLAY button– Display the counter or the cur-
17
rent channel number and current time on the TV
screen.
SPEED button– Press to choose the desired
18
recording speed:SP/SLP.
T-PROG. CLEAR button– Press to cancel a set-
19
ting of timer program.
COUNTER RESET button– Press to reset counter
to 0:00:00.
GAME button– Sets the game mode and external
20
input mode at the same time.
21
TIME SEARCH button– Press to activate Time
Search mode.
PAUSE/STILL button– Press to temporarily stop
22
the tape during the recording or to view a still picture during playback.
MUTE button– Mutes the sound. Press it again to
23
resume sound.
24
CHANNEL RETURN button– Press to go back to
the previously viewed channel. For example,
pressing this button once will change channel display from 3 (present channel) to 10 (previously
viewed channel), and pressing it a second time
will return from 10 to 3.
25
WAKE UP/SLEEP button– Sets the Wake up or
Sleep Timer.
Power cord– Connect to a standard AC outlet
26
(120V/60Hz).
ANT. terminal– Connect to an antenna or cable
27
system.
1-5-2 T5307IB
[ SRC22134/SRC22194 ]
This manual covers 13" and 19". The operation of the two models are exactly the same except the
model is illustrated in this manual.
appearance. 19
- TV/VCR FRONT PANEL -
"
- REMOTE CONTROL -
[ SRC22134 ]
POWER
3
123
15
16
456
789
MENU
DISPLAY MUTE
17
8
7
11
18
19
REW
RECORD
T-PROG.
CLEAR
COUNTER
RESET
20
[ SRC22194 ]
POWER
3
123
15
16
17
8
7
11
18
19
20
456
789
MENU
DISPLAY MUTE
REW
RECORD
T-PROG.
CLEAR
COUNTER
RESET
VIDEO
VOLUME
POWER
AUDIO
STOP/EJECT
1 92 3 4 5 6 7 8131011 1412
1
2
25
7
24
5
4
23
9
10
22
21
25
7
24
5
4
23
9
10
22
21
3
4
5 CHANNEL K / L buttons–
6
7 STOP button– Press to stop the tape motion.
•
•
WAKE-UP
TV/FM
/SLEEP
CHANNEL
RETURN
CHANNEL
+100
0
0
PLAY
STOP
PLAY
STOP
SPEED
GAME
WAKE-UP
/SLEEP
+100
SPEED
GAME
VOLUME
F.FWD
PA USE/STILL
SLOW
EJECT
CHANNEL
RETURN
CHANNEL
VOLUME
F.FWD
PA USE/STILL
SLOW
REW
PLAY
EARPHONE
F.FWD REC/OTRCHANNEL
VIDEO input jack– Connect to the video output
jack of your video camera or another VCR.
AUDIO input jack– Connect to the audio output
jack of your audio equipment, video camera or
another VCR.
POWER button– Press to turn TV/VCR on and off.
Press to activate timer recording.
VOLUME X/ Ybuttons– Adjust the volume level.
Press to select the
desired channels for viewing or recording, listening
of FM radio.
You may display the main menu on the TV screen
by pressing repeatedly this button on the TV/VCR.
TRACKING function– Press to minimize video
‘noise’ (lines or dots on screen) during playback or
Slow mode.
Remote Sensor Window– Receives the infrared
signals from the remote control.
[ TV/VCR ]
EJECT button– Press in the Stop mode to remove
tape from TV/VCR.
button–
L
Press to select setting modes from the on screen
menu.
Press to enter digits when setting program.
(for example: setting clock or timer program)
[ Remote control ]
(SRC22134)TV/FM button–
Sets the FM mode.
(SRC22194)EJECT button– Press in the Stop
mode to remove tape from TV/VCR.
1-5-3 T5307IB
- REAR VIEW -*
REW button– Press to rewind the tape, or to view
8
the picture rapidly in reverse during playback
mode. (Rewind Search)
button–
s
Press to select a mode from a particular menu.
•
(for example: LANGUAGE or USER’S SET UP)
PLAY button– Press to begin playback.
9
button–
K
Press to select setting modes from the on screen
•
menu.
Press to enter digits when setting program.
•
(for example: setting clock or timer program)
F.FWD button– Press to rapidly advance the tape,
10
or to view the picture rapidly in forward during
playback mode. (Forward Search)
B
button–
When setting program (for example: setting clock
•
or timer program), press to determine your selection and proceed to the next step you want to input.
Press to determine setting modes from on screen
•
menu.
Press to select a mode from a particular menu.
•
(for example: LANGUAGE or USER’S SET UP)
REC button– Press for manual recording.
11
OTR button– Activates One Touch Recording.
(only on the TV/VCR)
12
RECORD indicator– Flashes during recording.
Lights up in the Stand-by mode for Timer Recording.
13 EARPHONE jack– Connects to earphones (not
supplied) for personal listening. The size of jack is
1/8” monaural (3.5mm).
Cassette compartment
14
15 Number buttons– Press to select desired channels
for viewing or recording. To select channels from
1 to 9, first press the 0 button and then 1 to 9.
+100 button–
are higher than 99, press this button first, then press
the last two digits. (To select channel 125, first press
the “+100” button then press “2” and “5”).
When selecting cable channels which
ANT.
2726
16 MENU button– Press to display the main menu on
the TV screen.
17
DISPLAY button– Display the counter or the cur-
rent channel number and current time on the TV
screen.
SPEED button– Press to choose the desired
18
recording speed:SP/SLP.
T-PROG. CLEAR button– Press to cancel a set-
19
ting of timer program.
COUNTER RESET button– Press to reset counter
to 0:00:00.
20
GAME button– Sets the game mode and external
input mode at the same time.
SLOW button
21
22 PAUSE/STILL button– Press to temporarily stop
the tape during the recording or to view a still picture during playback.
Frame Advance function– Press to advance the
picture one frame at a time during Still mode.
MUTE button– Mutes the sound. Press it again to
23
resume sound.
CHANNEL RETURN button– Press to go back to
24
the previously viewed channel. For example,
pressing this button once will change channel display from 3 (present channel) to 10 (previously
viewed channel), and pressing it a second time
will return from 10 to 3.
WAKE UP/SLEEP button– Sets the Wake up or
25
Sleep Timer.
26
Power cord– Connect to a standard AC outlet
(120V/60Hz).
ANT. terminal– Connect to an antenna or cable
27
system.
–
Press to start slow motion playback.
1-5-4 T5307IB
CABINET DISASSEMBLY INSTRUCTIONS
[ SRC2213/SRC22134 ]
1. Disassembly Flowchart
This flowchart indicates the dis assembly steps for the
cabinet parts, and the CBA in order to ga in access to
item(s) to be serv iced. W hen reasse mbling, f ollow the
steps in reverse order. Bend, route and dress the
cables as they were.
Caution !!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] Tray Chassis
[3] Deck Unit
[4] Main CBA
[5] CRT
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1]
PART
Rear
Cabinet
REMOVE/
*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
1, 2 4(S-1) 1
Note
(1): Order of s teps in Procedur e. When reassembli ng,
follow the steps in reverse order.These numbers
are also used as th e i den tifi c ation ( l ocati on) No . o f
parts in Figures.
(2):Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L= Locki ng T ab , CN=Con nec -
tor, *=Unhook, Unlock, Release, Unplug, or Desol-
der
2(S-2) = two Screw (S-2)
(5): Refer to the following"Reference Notes in the
Table" following.
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove Screws 4(S-1).
Caution !!
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Tray Chassis.
Discharge the Anode Lead of the CRT with the
CRT Ground before removing the Anode Cap.
Disconnect the following: Anode Cap, CN501, CRT
CBA, CN601, CN571 and CN802. Then, pull the
Tray Chassis backward.
3. Removal of the Deck Unit.
Remove Screws 7(S-2) and 2(S-3). Then, desolder
connectors (CL201, CL 401 , CL40 2, CL 403 ) and l if t
up the Deck Unit.
4. Removal of the Main CBA.
Remove Screws 6(S-4) and pull up the Main CBA.
5. Removal of the CRT.
Remove Screws 4(S-5) and pull the CRT backward.
Tray
[2]
Chassis
[3] Deck Unit 3, 5
[4] Main CBA 3, 5 6(S-4) 4
[5] CRT 4 4(S-5) 5
↓
(1)
↓
(2)
Anode Cap, CN501,
3, 5
CRT CBA, CN601,
CN802, CN571
7(S-2), 2(S-3),
Desolder (CL201,
CL401, CL402,
CL403)
↓
(3)
↓
(4)
2
3
↓
(5)
1-6-1 T5307DC
S-1
S-1
S-1
S-1
Fig. 1
S-1
S-1
[1] REAR CABINET
Fig. 2
1-6-2 T5307DC
[2] TRAY CHASSIS
S-2
[4] MAIN CBA
S-4
S-2
S-2
[3] DECK UNIT
S-2
S-4
S-4
S-4
S-3S-3
S-4
Fig. 3
1-6-3 T5307DC
S-5
S-5
ANODE CAP.
CRT CBA
S-5
[5] CRT
S-5
Fig. 4
1-6-4 T5307DC
ANODE
CRT
GND
MAIN CBA
CN501
SCREEN
TO SPEAKER
CN802
CL401
CL501A
FOCUS
CL403
CL504A
CRT CBA
TO DEGAUSS
COIL
CN601
AC CORD
FE HEAD
CL201
CYLINDER
ASSEMBLY
CL402
CL501
AC HEAD
ASSEMBLY
CL504
CN571
CAPSTAN
MOTOR
DECK UNIT
Fig. 5
1-6-5 T5307DC
[ SRC22194 ]
1. Disassembly Flowchart
This flowchart indicates the dis assembly steps for the
cabinet parts, and the CBA in order to ga in access to
item(s) to be serv iced. W hen reasse mbling, f ollow the
steps in reverse order. Bend, route and dress the
cables as they were.
Caution !!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
(1): Order of s teps in Procedur e. When reassembli ng,
follow the steps in reverse order.These numbers
are also used as th e i den tifi c ation ( l ocati on) No . o f
parts in Figures.
(2):Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L= Locki ng T ab , CN=Con nec -
tor, *=Unhook, Unlock, Release, Unplug, or Desol-
der
2(S-2) = two Screw (S-2)
(5): Refer to the following"Reference Notes in the
Table" following.
[2] Tray Chassis
[3] Deck Unit
[4] Main CBA
[5] CRT
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1]
[2]
PART
Rear
Cabinet
Tray
Chassis
REMOVE/
*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
1, 2 4(S-1) 1
Anode Cap, CN501,
3, 4,
CRT CBA, CN601,
5
CN802, CN571
Note
2
Reference Notes in the Table
1. Removal of the Rear Cabinet.
Remove Screws 4(S-1).
Caution !!
Discharge the Anode Lead of the CRT with the CRT
Ground Wire before removing the Anode Cap.
2. Removal of the Tray Chassis.
Discharge the Anode Lead of the CRT with the
CRT Ground before removing the Anode Cap.
Disconnect the following: Anode Cap, CN501, CRT
CBA, CN601, CN571 and CN802. Then, pull the
Tray Chassis backward.
3. Removal of the Deck Unit.
Remove Screws 7(S-2) and 2(S-3). Then, desolder
connectors (CL201, CL 401 , CL40 2, CL 403 ) and l if t
up the Deck Unit.
4. Removal of the Main CBA.
Remove Screws 6(S-4) and pull up the Main CBA.
5. Removal of the CRT.
Remove Screws 4(S-5) and pull the CRT backward.
7(S-2), 2(S-3),
[3] Deck Unit 3, 5
[4] Main CBA 3, 5 6(S-4) 4
[5] CRT 4 4(S-5) 5
↓
(1)
↓
(2)
Desolder (CL201,
CL401, CL402,
CL403)
↓
(3)
↓
(4)
3
↓
(5)
1-6-6 T7308DC
S-1
ANT.
S-1
Fig. 1
S-1
S-1
S-1
S-1
[1] REAR CABINET
Fig. 2
1-6-7 T7308DC
[2] TRAY CHASSIS
S-2
[4] MAIN CBA
S-4
S-2
S-2
[3] DECK UNIT
S-2
S-4
S-4
S-4
S-3S-3
S-4
Fig. 3
1-6-8 T7308DC
S-5
ANODE CAP
S-5
CRT CBA
S-5
[5] CRT
S-5
Fig. 4
1-6-9 T7308DC
ANODE
CRT
GND
MAIN CBA
CN501
SCREEN
TO SPEAKER
CN802
CL401
CL501A
FOCUS
CL403
CL504A
CRT CBA
TO DEGAUSS
COIL
CN601
AC CORD
FE HEAD
CL201
CYLINDER
ASSEMBLY
CL402
CL501
AC HEAD
ASSEMBLY
CL504
CN571
CAPSTAN
MOTOR
DECK UNIT
Fig. 5
1-6-10 T7308DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note:
"CBA" is abbreviation for "Circuit Board
Assembly."
NOTE:
Electrical adjust ments are requi red after replaci ng
circuit components and certain mechanical parts.
It is important to perform these adjustments only
after all repairs and replacements have been completed.
Also, do not attempt these adjustme nts unl ess the
proper equipment is available .
Test Equipment Required
1. NTSC Pa ttern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)
2. AC Milli Voltmeter (RMS)
3. Alignment Ta pe (FL8 A, FL8N) , Blank Tape
4. DC Voltmeter
5. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div,
F-Range: DC~AC-60MHz
6. Frequency Counter
7. Plastic Tip Dri ver
How to make service remote control
unit:
How to Set up the Service mode:
Service Mode:
1. Use the service remote control unit.
2. Turn the power on.
3. Pr ess " WAKE-UP/SLEEP " button on the service
remote control unit.
1. DC 105V (+B) Adjustment
[ SRC2213/SRC22134 ]
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
Test point Adj. Point Mode Input
J192
(+B)
J213
(GND)
Tape M. EQ. Spec.
---
Note: J192(+B), J213(GND), VR601 --- Main CBA
1. Connect the unit to AC Power Outlet.
2. Connect DC Volt Meter to J192(+B) and
J213(GND).
3. Adjust VR601 so that the voltage of J192(+B)
becomes +105±0.5V DC.
VR601 --- -----
DC Voltmeter
Plastic Tip Driver
+105±0.5V DC
1. Prepare normal remote control unit. (Part No.
N0107UD) Remove 3 screws from the back lid.
(Fig. 1-1)
2. Add J1 (Jumper Wire) to the r emote control CBA.
(Fig. 1-2)
SCREW
Remote control unit (Bottom)
J1
Remote control CBA
Fig. 1-1
1-7-1 T5307EA
1. DC 114V (+B) Adjustment
3. TV AGC Adjustment
[ SRC22194 ]
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
Test point Adj. Point Mode Input
J192
(+B)
J213
(GND)
Tape M. EQ. Spec.
---
Note: J192(+B), J213(GND), VR601 --- Main CBA
1. Connect the unit to AC Power Outlet.
2. Connect DC Volt Meter to J192(+B) and
J213(GND).
3. Adjust VR601 so that the voltage of J192(+B)
becomes +114±0.5V DC.
VR601 --- -----
DC Voltmeter
Plastic Tip Driver
+114±0.5V DC
2. Auto AFT (VCO) Adjustment
Purpose: To operate AFT correctly.
Symptom of Misadjustment: AFT does not work cor-
rectly and/or synchronization is faulty.
Test point Adj. Point Mode Input
Purpose: Set AGC (Auto Gain Control) Level.
Symptom of Misadjustment: AGC does no t syn ch ro-
nize correctly when RF input level is too weak and picture distortion may occur if it is too strong.
Test point Adj. Point Mode Input
J191
(AGC)
Tape M. EQ. Spec.
---
Note: J191 (AGC) --- Main CBA
1. Enter the Service mode. (See page 1-4-1.) Then
press number 2 button on the remote control unit.
2. Receive the Color Bar signal for channel 4
(67.25MHz). (RF Input Level: 60dBµV)
3. Press CH o / p buttons so that the voltage of J191
(AGC) becomes +2.8V±0.3V DC.
4. Turn the power off and on again.
CH o / p
buttons
Pattern Generator
DC Voltmeter
---
+2.8±0.3V DC
Color Bar
67.25MHz
60dBµV
4-1. H Adjustment
Purpose: To get correct horizontal pos ition and size
of screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
--- --- Video -----
Tape M. EQ. Spec.
--- --- ---
1. Set the unit to the Video mode with no signal input.
2. Enter the Service mode. (See page 1-4-1.) Then
press number "3" button on the remote control unit.
3. If the screen color changes to "Green" then this
adjustment is finished.
4. If the screen color changes to "Red" then this
adjustment is failed. Repeat steps 1 and 2 or check
relative circuit or parts (IC).
Test point Adj. Point Mode Input
R583
Tape M. EQ. Spec.
--- Frequency Counter 15.734kHz±300Hz
Note: R583 --- Main CBA
1. Connect Frequency Counter to R583.
2. Set the unit to the VIDEO mode and no input is
necessary. Enter the Service mode.
(See page 1-4-1.)
3. Operate the unit for at least 20 minutes.
4. Press "2" button on the remote control unit and
select H-Adj Mode. (Press "2" button, then display
will change H-Adj and AGC.)
5. Press CH o / p buttons on the remote control unit
so that the display will change "0" to "7."
At this moment, ch oose d isplay " 0" to "7 " when the
Frequency counter display is closest to
15.734kHz±300Hz.
6. Turn the power off and on again.
CH o / p
buttons
Video ---
1-7-2 T5307EA
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