In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its
original condition and only parts identical to those specified should be used.
CONTENTS
» IMPORTANT SERVICE SAFETY PRECAUTION............................................................................ 2
» REPLACEMENT PARTS LIST....................................................................................................... 88
» PACKING OF THE SET ............................................................................................................... 103
13VT-CR10
Page
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
1
Page 2
13VT-R100/R150
13VT-CR10
IMPORTANT SERVICE SAFETY PRECAUTION
Ë
Service work should be performed only by qualified service technicians who are
thoroughly familiar with all safety checks and servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
3. Semiconductor heat sinks are potential shock
hazards when the chassis is operating.
4. The chassis in this receiver has two ground systems
which are separated by insulation material. The nonisolated (hot) ground system is for the +B voltage
regulator circuit and the horizontal output circuit.The
isolated ground system is for the low +B DC voltages
and the secondary circuit of the high voltage
transformer.
To prevent electrical shock use an isolation
transformer between the line cord and power
receptacle, when servicing this chassis.
CAUTION: FOR CONTINUED
PROTECTION AGAINST A
RISKOF FIRE, REPLACE
4A 125V
ONLY WITH SAME TYPE 4A125V FUSE.
SERVICING OF HIGH VOLTAGE SYSTEM
AND PICTURE TUBE
When servicing the high voltage system,
remove the static charge by connecting a
10k ohm resistor in series with an insulated
wire (such as a test probe) between the picture tube ground and the anode lead. (AC
line cord should be disconnected from AC
outlet.)
1. Note that the picture tube in this receiver employs
integral implosion protection.
2. Replace with tube of the same type number for
continued safety.
3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing
shatterproof goggles and after discharging the high
voltage anode completely.
X-RADIATION AND HIGH VOLTAGE LIMITS
1. Be sure all service personnel are aware of the
procedures and instructions covering X-radiation.
The only potential source of X-ray in current solid
state TV receivers is the picture tube. However, the
picture tube does not emit measurable X-Ray
radiation if the high voltage is as specified in the "High
Voltage Check" instructions.
It is only when high voltage is excessive that Xradiation is capable of penetrating the shell of the
picture tube including the lead in glass material. The
important precaution is to keep the high voltage
below the maximum level specified.
2. It is essential that servicepersonel have available at
all times an accurate high voltage meter.
The calibration of this meter should be checked
periodically.
3. High voltage should always be kept at the rated value
-no higher. Operation at higher voltages may cause
a failure of the picture tube or high voltage circuitry
and;also,under certain conditions, may produce
radiation that exceeds specifications.
4. When the high voltage regulator is operating properly
there is no possibility of an X-radiation problem.
Every time a color chassis is serviced, thebrightness
should be tested while monitoring the high voltage
with a meter to be certain that the high voltage does
not exceed the specified value and that it is regulating
correctly.
5. Do not use a picture tube other than that specified
or make unrecommended circuit modifications to the
high voltage circuitry.
6. When trouble shooting and taking test
measurements on a receiver with excessive high
voltage, avoid being unnecessarily close to the
receiver.
Do not operate the receiver longer than is necessary
to locate the cause of excessive voltage.
2
Page 3
2
IMPORTANT SERVICE SAFETY PRECAUTION
2
2
AC
VOLTMETER
1.5k ohm
10W
0.15µF
TEST PROBE
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
(Continued)
13VT-R100/R150
13VT-CR10
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks.
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical
insulators and etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
» Plug the AC cord directly into a 120 volt AC outlet,
(Do not use an isolation transformer for this test).
» Using to clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series
with all exposed metal cabinet parts and a known
earth ground, such as electrical conduit or electrical
ground connected to earth ground.
» Use an AC voltmeter having with 5000 ohm per volt,
or higher, sensitivity to measure the AC voltage drop
across the resistor.
» Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon and etc.) and measure the AC voltage
drop across the resistor.
AII check must be repeated with the AC line cord
plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the
purpose of completing these check.)
Any current measured must not exceed 0.5 milliamp.
Any measurements not within the limits outlined
above are indicative of a potential shock hazard and
corrective action must be taken before returning the
instrument to the customer.
Many electrical and mechanical parts in television
receivers have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarily increased by using replacement
components rated for higher voltage, wattage and etc.
Replacement parts which have special safety
characteristics are identified in this manual; electrical
components having such features are identified by " å"
and shaded areas in the Replacement Parts Lists and
Schematic Diagrams.
For continued protection, replacement parts must be
identical to those used in the original circuit. The use of
a substitute replacement parts which do not have the
same safety characteristics as the factory recommended
replacement parts shown in this service manual, may
create shock, fire, X-radiation or other hazards.
3
Page 4
13VT-R100/R150
13VT-CR10
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
Ë
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
AVERTISSEMENT
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
3. Les déversoirs thermiques à semi-conducteurs
peuvent présenter un danger de choc électrique
lorsque le réceqteur est en marche.
4. Le châssis de ce récepteur a deux systèmes de mise
à la terre qui sont séparés par un matériau isolant.
Le système de mise à la terre non-isolée (chaud)
est pour le circuit du régulateur de tension +B et le
circuit de sortie horizontale. Le système de mise à
la terre isolé est pour les basses tensions C. C. +B
et le circuit secondaire du transformateur de haute
tension.
PRECAUTION:POUR LA
PROTECTION CONTINUE
CONTRE LES RISQUES
4A 125V
D'INCENDIE, REMPLACER LE
FUSIBLE P AR UN FUSIBLE DE
MEME TYPE 4A-125V.
REPARATION DU SYSTEME A HA UTE TENSION ET DU TUBE-IMAGE
Lors de la réparation de ce systéme,
supprimer la charge statique en branchant
une résistance de 10 k en série a vec un fil
isolé (comme une sonde d'essai) entre la
mise à la terre du tube-image et le fil
d'anodel. (Le cor den d'alimentation doit être
retiré de la prise murale.)
1. Il est à noter que le tube-image de ce récepteur est
intégralement protégé contre l'implosion.
2. Par mesure de sécurité, changer le tube-image pour
un tube du même numéro de type.
3. Ne pas lever le tube-image par son col.
4. Ne manipuler le tube-image qu'en porant des lunettes
incassables et qu'après avoir déchargé totalement
la haute tension.
LIMITES DES RADIATIONS X ET DE LA
HAUTE TENSION
1. Tout le personnel réparateur doit être instruit des
instructions et procédés relatifs aux radiations X.
Le tube-image, seule source de rayons X dons les
téleviseurs transistorisés, n'émet pourtant pas de
rayons mesurables si la haute tension est maintenue
à un niveau préconisé dans la section "Vérification
de la haute tension".
C'est seulement quand la haute tension est
excessive que les rayons X peuvent entrer dans
l'enveloppe du tube-image y compris le conducteur
de verre. Il est important de maintenir la haute tension
en-dessous du niveau spécifié.
2. Il est essentiel que le réparateur ait sous la main un
voltmètre à haute tension qui doit être
périodiquement étalonné.
3. La haute tension doit toujours être maintenue à la
valeur de régime-et pas plus haute. L'opération à
des tensions plus élevées peut entraîner une panne
du tube-image ou du circuit à haute tension et, dans
certaines conditions, peut entraîner une radiation
dépassant les niveaux préscrits.
4. Quand le régulateur à haute tension fonctionne
correctement, il n'y a aucun problème de radiation
X. Chaque fois qu'un châssis couleurs est réparé, la
luminosité doit être examinée bout en contrôlant la
haute tension à l'aide d'un voltmètre pour s'assurer
que la haute tension ne dépasse pas la valeur
spécifiée et qu'elle soit correctement réglée.
5. Ne pas utiliser un tube-image autre que celui spécifié
et ne pas effectuer de modifications déconseillées
du circuit à haute tension.
6. Lors de la recherche des pannes et des mesures
d'essai sur un récepteur qui présente une haute
tension excessive, éviter de s'approcher inutilement
du récepteur.
Ne pas faire fonctionner le récepteur plus longtemps
que nécessaire pour localiser la cause de la tension
excessive.
4
Page 5
13VT-R100/R150
22
13VT-CR10
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
(Suite)
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur , effectuer
les vérifications suivantes.
1. Inspecter tous les faisceaux de câbles pour s'assurer
que les fils ne soient pas pincés ou qu'un outil ne
soit pas placé entre le châssis et les autres pièces
métalliques du récepteur.
2. Inspecter tous les dispositifs de protection comme
les boutons de commande non-métalliques, les
isolants, le dos du coffret, les couvercles ou
blindages de réglage et de compartiment, les
réseaux de résistance-capacité, les isolateurs
mécaniques, etc.
3. S'assurer qu'il n'y ait pas de danger d'électrocution
en vérifiant la fuite de courant, de la facon suivante:
» Brancher le cordon d'alimentation directem-ent à une
prise de courant de 120V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
» A l'aide de deux fils à pinces, brancher une résistance
de 1,5 k 10 watts en parallèle avec un condensateur
de 0,15µF en série avec toutes les pièces métalliques
exposées du coffret et une terre connue comme une
conduite électrique ou une prise de terre branchée
à la terre.
» Utiliser un voltmètre CA d'une sensibilité d'au moins
5000 /V pour mesurer la chute de tension en travers
de la résistance.
» T oucher avec la sonde d'essai les pièces métalliques
exposées qui présentent une voie de retour au
châssis (antenne, coffret métallique, tête des vis,
arbres de commande et des boutons, écusson, etc.)
et mesurer la chute de tension CA en-travers de la
résistance.
Toutes les vérifications doivent être refaites après
avoir inversé la fiche du cordon d'alimentation. (Si
nécessaire, une prise d'adpatation non polarisée
peut être utilisée dans le but de terminer ces
vérifications.)
T ous les courants mesurés ne doivent pas dépasser
0,5 mA.
Dans le cas contraire, il y a une possibilité de choc
électrique qui doit être supprimée avant de rendre
le récepteur au client.
De nombreuses pièces, électriques et mécaniques,
dans les téléviseurs présentent des caractéristiques
spéciales relatives à la sécurité, qui ne sont souvent
pas évidentes à vue. Le degré de protection ne peut
pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension,
puissance, etc.
Les pièces de remplacement qui présentent ces
caractéristiques sont identifiées dans ce manuel; les
pièces électriques qui présentent ces particularités sont
identifiées par la marque " å " et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques.
Pour assurer la protection, ces pièces doivent être
identiques à celles utilisées dans le circuit d'origine.
L'utilisation de pièces qui n'ont pas les mêmes
caractéristiques que les pièces recommandées par
l'usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies, radiations X ou autres
accidents.
5
Page 6
13VT-R100/R150
13VT-CR10
VHF/UHF ANTENNA INPUT IMPEDANCE:75 ohm unbalanced
ELECTRICAL SPECIFICATIONS
TV SECTION
POWER INPUT:120 V AC 60 Hz
POWER RATING:65 W
PICTURE SIZE
Width:37.8 cm
Height:38.7 cm
Depth:37.5 cm
CONVERGENCE:Magnetic
SWEEP DEFLECTION:Magnetic
FOCUS:Hi-Bi-Potential Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency:45.75 MHz
Sound IF Carrier Frequency:41.25 MHz
Color Sub-Carrier Frequency:42.17 MHz (Nominal)
AUDIO POWER OUTPUT RATING:0.8 W (at 10% Distortion)
SPEAKER
Size:5 × 9 cm (2" × 31/2")
Voice Coil Impedance:16 ohm at 400 Hz
TUNING RANGES
VHF-Channels:2 thru 13
UHF -Channels:14 thru 69
CATV Channels:1,14 thru 125 (EIA, Channel Plan)
VCR SECTION
Video Recording System:Rotary Two-Head Helical Scanning
Number of Video Heads:2 pcs.
Video Signal Standard:NTSC Color System
Maximum Recording Time:(SP)120 min (with T-120)
Operating Temperature:5°C to 40°C (41°F to 104°F)
Storage Temperature:-20°C to 60°C (-4°F to 140°F)
Specifications are subject to change without prior notice.
Format:VHS Standard
Tape Width:12.7mm (1/2inch)
Tape Speed:(SP)33.35mm/sec (1.31 i.p.s)
(LP)16.68mm/sec (0.66 i.p.s)
Play back only
(EP)11.12 mm/sec (0.44 i.p.s)
(EP)360 min (with T-120)
Video Input:0.5 to 2.0 Vp-p, 75 ohm unbalanced
Audio Input:-8 dB, 47k ohm unbalanced (0 dB-0.775 Vrms)
6
Page 7
LOCATION OF USER'S CONTROL
Description Of Controls
FRONT
POWER button
13VT-R100/R150
13VT-CR10
POWER/
POWER
WAKE-UP
PROGRAM
TAMPER
TIMER
REC
TIMER
PROOF
POWER/
WAKE-UP
TIMER
POWER indicator
REAR
SENSOR AREA FOR REMOTE CONTROL
PROGRAM
TIMER
TAMPER
PROOF
REC
TAMPER PROOF indicator
PROGRAM TIMER indicator
REC indicator
VOLUME
UP/DOWN
buttons
CHANNEL
UP/DOWN
buttons
EZ
REC
PLAY
button
button
REW (Reverse
Video Search)
button
VIDEO/AUDIO
Input Jacks
PLAY
button
STOP/EJECT
button
FF (Forward
Video Search)
button
ANT/CABLE
TERMINAL
(75 )
7
Page 8
13VT-R100/R150
13VT-CR10
INPUT
TV/VIDEO Select
POWER ON/OFF
CHANNEL SELECT
FLASHBACK
Returns to previously viewed
channel.
COUNTER RESET
• Used to reset the tape counter.
TAPE SPEED
• Used to select the recording
tape speed.
PLAY
• Used for tape playback.
• Used to cancel the PAUSE/STILL
mode and return to normal
playback operation.
REW
• Used to rewind the tape or to
conduct Reverse Video Search
during playback mode.
REC
• Used to record a program.
–, +
TIMER ON/OFF
CONFIRM
• Used to confirm the program
setting.
RETURN
SET
LOCATION OF USER'S CONTROL (Continued)
Location Of Control’s Buttons (Remote Control)
Infrared Transmitter Window
DISPLAY
• Used to change the On Screen
Display.
MUTE
POWER
INPUTDISPLAYMUTE
123
•
456
789
FLASHBACK
0
COUNTER
RESET
PLAY
REWFF
STOP
REC
TIMER
ON/OFF
CONFIRM
–
RETURN
TV • VCR COMBINATION
100
TAPE
SPEED
—
+
SET
VOL
CH
TAMPER
PROOF
PAUSE/STILL
DPSS
±
PROG
MENU
±
•
•
TR
•
•
—
Press → Mutes sound.
Press again
to previous level.
Press the MUTE button to enter
the CLOSED CAPTION mode
automatically if the signal contains
CC information.
VOLUME UP/DOWN
CHANNEL UP/DOWN
(TRACKING
• Used to select the CHANNEL.
• Used to adjust the TRACKING
while playing the tape.
TAMPER PROOF
• Used to block changes to current
operating mode.
FF
• Used to fast forward the tape or
to conduct Forward Video Search
during playback mode.
STOP
• Used to stop the tape.
PAUSE/STILL
• Used to temporarily stop the tape
during recording mode.
• Used to display a still picture
during playback mode.
DPSS (± / —)
• Press the (± / —) button to search
for the index signal and begin
playback automatically.
PROGRAM
• Press the button to enter the Timer
Recording mode.
MENU
• Used to select the menu screen.
→
Restores sound
±
/ —)
Remote Control Battery Installation
Ë
Before using the television, prepare the Remote Control
To use the remote control, insert batteries first.
Insert the batteries
Pull up
Battery
Cover
• With your thumb nail, pull up the slit as indicated by the arrow to remove the back cover. Insert two batteries (size “AA”).
Be sure to match the battery
±/—
terminals with the ±/— marks inside the compartment.
8
Page 9
13VT-R100/R150
3
2
K
M
13VT-CR10
DISASSEMBLY AND REASSEMBLY
1. Remove the 7 rear cover fixing screws and detach the rear cover.
2. Take out the anode cap, CRT PWB, connectors K and M, coating earth, Speaker chip fixing screws and others.
3. Take out the main PWB unit and the VCR unit.
4. Remove the 5 VCR fixing screws, and detach the shielding case.
1
4
9
Page 10
13VT-R100/R150
13VT-CR10
DISASSEMBLY AND REASSEMBLY (Continued)
5. Remove the 4 cassette housing control fixing screws, and detach the cassette housing control.
6. Remove the 2 mechanism chassis angle fixing screws, and remove the 1 head amp shielding case fixing screw.
7. Remove the 3 mechanism chassis fixing screws, and detach the mechanism chassis from the main PWB.
8. Remove the 3 main PWB fixing screws, and detach the main PWB.
9. Remove the 2 power PWB fixing screws, and detach the power PWB
5
7
6
8
9
7
10
Page 11
13VT-R100/R150
13VT-CR10
DISASSEMBLY AND REASSEMBLY (Continued)
For servicing any of the components inside, disconnect the lead dressing holder. Position the main PWB unit upright
as shown below and connect the leads for starting the services.
GC
PG
SP
PG
FRONT
OR
OR
OC
OC
M
GR
K
GC
GR
11
Page 12
13VT-R100/R150
13VT-CR10
INSTALLATION AND SERVICE INSTRUCTIONS
Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic
screwdriver or TV alignment tools.
(2) Before performing adjustment, TV set must be on at least 15 minutes.
CIRCUIT PROTECTION
The receiver is protected by a 4.0A fuse (F701), mounted
on PWB-A, wired into one side of the AC line input.
X-RADIATION PROTECTOR CIRCUIT
TEST
After service has been performed on the horizontal
deflection system, high voltage system, or +B system,
test the X-Radiation protector circuit to ascertain proper
operation as follows:
1. Apply 120V AC using a variac transformer for
accurate input voltage.
2. Allow for warm up and using the remote controller,
set the brightness level and contrast level to
maximum.
3. Check the voltage of test point TP653. (It’s voltage
should be about 10.1V DC.)
4. Apply external 13.1V DC at TP653 by using an
external DC supply. The increased voltage will cause
the horizontal oscillator to stop and the TV to shut
off.
5. To re-start the oscillator, remove the external DC
power supply and short together TP651 and TP652.
Once the TV set operates normally again, remove
the short between TP651 and TP652.
HIGH VOLT AGE CHECK
High voltage is not adjustable but m ust be chec ked
to verify that the receiver is operating within safe
and efficient design limitations as specified checks
should be as follows:
1. Connect an accurate high voltage meter between
ground and anode of Picture tube.
2. Operate receiver for at least 15 minutes at 120V AC
line voltage, with strong air signal or properly tuned
in test signal.
3. Set to Service mode on, "Mute" and bus data 1(Ymute on).
4. The voltage should be approximately 25.4kV (at zero
beam). If a correct reading cannot be obtained,
check circuitry for malfunctioning components.
After the voltage test, "Mute" and bus data "0" (Ymute off).
12
Page 13
13VT-R100/R150
13VT-CR10
The R-series SHARP TV/VCR COMBINATION have most of the analog setup adjustments eliminated. Coil and
variable resistor adjustments are now performed digitall y by using the remote contr oller or set’s volume and
channel change function buttons.
Note: There are still a few analog adjustments in the R-series such as 120V adjust, focus, master screen
voltage and coils in the picture I/F detector circuit.
Follow the steps below, whenever service adjustment is required. See "T able-B" to determine, if service
adjustments are required.
1. Service mode
Before putting unit into the service mode, check that
customer adjustments are in the normal mode, use
the reset function in the video adjust menu to ensure
customer controls are in their proper (reset) position.
To enter the service mode
Plug in a television set, during push S2507 (CH-up).
When successfuly entered, the service mode will be
displayed as shown in Figure A.
To exit service mode
Turn off the power or unplug the set.
2. Adjustment Item selection
Once in the service mode, press the channel up or
channel down button on the remote controller or at
the set (Table-A). Select the item you wish to adjust.
3. Data number selection
Press the volume up or down button to adjust the
data number in the upper right hand side of the
screen.
PICTURE: 162
Figure A.
13
Page 14
13VT-R100/R150
13VT-CR10
Table - A
ADJUSTMENT
ITEM
PICTURE160~63
TINT390~77
COLOR130~63
BRIGHT320~63
SHARP70~13
PHASE00~7
H-PHASE200~31
RF-AGC180~63
V-AMP320~63
PIF-VCO400~127
R CUT-OFF00~255
G CUT -OFF00~255
B CUT-OFF00~255
G GAIN1280~255
B GAIN1280~255
MUTE00~2"0"= Normal raster, "1"= no"Y",
ENERGY SAVE450~45
BALANCE320~63
TEXT BOX150~127
TEXT PICTURE200~80
CCD LEVEL100~24
OPTION (VCR)390~6313VT-R100/R150 Must be set to "39"
OPTION (TV)310~255
INITIAL VALUERANGE
DATA
"2"= No Vertical
ADJUSTMENT
COMMENTS
*No adjustment is required due to proper setting being made by IC2001 automatically.
Table - B
PART
REPLACED
IC2001X
IC401X
IC2003X
CRTX
NECESSARYUNNECESSARY
ADJUSTMENT
NOTE
Data is stored in IC2003.
The adjustment is needed to compensate for characteristics
of parts including IC401.
Initial setting values are written from IC2001. Adjust for best
results.
Adjust items related to picture tube only.
14
Page 15
Ë
SERVICE ADJUSTMENT
13VT-R100/R150
13VT-CR10
VCO Adjustment
1. Connect a digital voltmeter between pin (44) of IC401
and ground.
2. Select a good local channel.
3. Enter the service mode and select the service
adjustment item "PIF-VCO" and set the data value
to "40".
4. Adjust the VCO coil L202 so that the digital voltmeter
reads 2.5V.
5. Adjustment is complete, remove the voltmeter and
return to "normal" mode.
RF A GC Adjustment
1. Select a good local channel.
2. Enter the service mode and select the service
adjustment item "RF-AGC".
3. Set the data value to point where no noise or beat
appears.
4. Select another channel to confirm that no noise or
beat appears.
Note 1: You will have to come out of the service
mode to select another channel.
Note 2: Setting the data to "0" will produce a
black raster.
Screen Adjustment
1. Select a good local channel.
2. Enter the service mode and select the service
adjustment item "COLOR" and set the data value to
"0" to set the color level to minimum. You may skip
this step, if you selected a B/W picture or monoscope
pattern.
3. Select service adjustment item "MUTE" and adjust
the data value to "1", this turns off the luminance
signal (Y-mute).
4. Select service adjustment item "BRIGHT" and set
the value to "32".
5. Adjust the master screen control until raster darkens
to the point where raster is barely seen.
6. Adjust service adjustments item "R-CUT OFF" red
"G-CUT OFF" green and "B-CUT OFF" blue to obtain
a good grey scale with normal whites at low
brightness level.
7. Select the service adjustment item "MUTE" and reset
data to "0". Select service adjustment item "COLOR"
and reset data to obtain normal color level.
White Balance Adjustment
1. Select a good local channel.
2. Enter the service mode and select the service
adjustment item "COLOR" and set to "0" (minimum
color). "COLOR" does not have to be adjusted if you
selected a B/W picture or monoscope pattern.
3. Alternately adjust the service adjustment data of "G
GAIN" and "B GAIN" until a good grey scale with
normal whites is obtained.
4. Select the service adjustment item "COLOR" and
adjust data to obtain normal color level.
Picture Adjustment
1. Select a good local channel.
2. Make sure the customer picture control is maximum.
3. Enter the service mode and select the service
adjustment item "PICTURE".
4. Adjust the data value to achieve normal contrast
range.
Tint Adjustment
1. Select a good local channel.
2. Set customer tint control to center of it’s range.
3. Enter the service mode and select the service
adjustment item "TINT".
4. Adjust "TINT" data value to obtain normal flesh tones.
Color Adjustment
1. Select a good local channel.
2. Make sure the customer color control is set to center
position .
3. Enter the service mode and select the service
adjustment item "COLOR".
4. Adjust "COLOR" data value to obtain normal color
level.
Brightness Adjustment
1. Select a good local channel.
2. Make sure the customer brightness control is set to
center position.
3. Enter the service mode and select the service
adjustment item "BRIGHT".
4. Adjust "BRIGHT" data value to obtain normal
brightness level.
15
Page 16
13VT-R100/R150
13VT-CR10
Vertical-Size Adjustment
1. Select a good local channel.
2. Enter the service mode and select the service
adjustment item "V-AMP".
3. While observing the top and bottom of the screen,
adjust "V-AMP" data value to proper vertical size and
linearity.
Horizontal Position Adjustment
1. Select a good local channel.
2. Enter the service mode and select the service
adjustment item "H-PHASE".
3. Adjust "H-PHASE" data value so that picture is
centered.
Caption Position Adjustment
(Horizontal)
1. Select a good local channel.
2. Enter the service mode and select the service
adjustment item "TEXT BOX".
3. A black text box appears on the screen. (See FigureB. below.)
4. Adjust "TEXT BOX" data value so that text box is
positioned in the center of the screen.
Figure B.
16
Page 17
13VT-R100/R150
13VT-CR10
PRECAUTIONS IN REASSEMBLING
MOUTING THE CASSETTE CONTROLLER
Initial setting is indispensable before placing the cassette controller in the mechanism. The initial setting is made in two
ways;electrical and mechanical.
Electrical setting:
Make a short-circuit between TP7701 and TP7702 and be sure that the mechanism is back to its initial setting position (*1).
Now place the cassette controller in position.(This method is used when the mechanism has been already set on its PWB.)
Pulley feed gear
Casecon
drive gear
Screwdriver
Drive angle of
Large tooth
cassette control
Mechanical setting:
Turn the loading motor’s pulley feed gear using a
screwdriver and be sure that the mechanism is back
to its initial setting position (*1). Now place the
cassette controller in position.(This method is applicable for the mechanism alone.)
COUPLING THE MECHANISM TO THE PWB
Match the mechanism’s projections with the two symbols (round reference and oval sub-reference) on the main PWB. Place the
mechanism straight down in position with due care so that the mechanism chassis’s outer edges should not damage any parts
nearby.
Tighten up the two screws (one for fixing the mechanism and the head amplifier shield, the other on the main PWB’s soldering side
and located near the loading motor) to fix the mechanism and main PWB. Reconnect the FFC cables (MH and AA, ME and AD,
Drum Unit and AH) between the mechanism and main PWB.
Parts to pay attention to:
Start and end sensorsQ7703, Q7704
Record tip switchS7701
Take special care of the connectors (board to board; AC, AE, AL) between the mechanism and main PWB.
END SENSOR
AE Connector
REC TIP SW
17
AL Connector
AC Connector
START SENSOR
Page 18
13VT-R100/R150
13VT-CR10
FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW)
Full Erase
Head
Supply Pole
Base Ass'y
Sup Main
Brake Ass'y
1
2
7
Drum Ass'y
17
Drum Motor
19
Take-up Pole Base Ass'y
21
Automatic Head Cleaner Ass'y
20
A/C Head Ass'y
11
22
Fixing Guide
Pinch Roller
16
Lever Ass'y
Pinch Drive
10
Cam
Reverse Guide
13
Lever Ass'y
Pinch Drive
8
Lever Ass'y
Tension
Arm Ass'y
3
No.Function
1.Full erase head ass’y
Erase the old recording on the tape in the recording mode.
3.Tension arm ass’y
Detects the tension of tape while running, and
brakes the supply reel disk via the tension band.
7.Sup Main brake lever
Brakes the supply reel disk to prevent tape
slackening when the unit is stopped in fast forward or rewind mode.
9.Main take-up brake lever
Brakes the take-up reel disk to prevent tape
slackening when the unit is stopped in fast forward or rewind mode.
6
Supply Reel
Disk
8
Idler Wheel
Ass'y
Loading
18
15
Take-up
Reel Disk
Motor
No.Function
13.Reverse guide lever ass’y
Pulls out the tape and controls the tape drive train
height with the upper and lower guides.
16.Pinch roller lever ass’y
Press-fits the tape to the capstan during tape
running.
18.Loading motor
A motive power which drives the mechanism. It
transmits the power to the master cam and cassette housing control ass'y.
Casecon
14
Drive Gear
Tu Main
9
Brake Ass'y
18
Page 19
13VT-R100/R150
Capstan D. D. Motor
Drive Belt
Slow Brake
Master Cam
Casecon Drive Gear
Clutch Lever
Limiter Pulley Ass'y
Shifter
3
4
1
2
7
5
6
8
13VT-CR10
FUNCTION OF MAJOR MECHANICAL PARTS (BOTT OM VIEW)
No.Function
1.Slow brake
Gets in contact with the capstan D.D. motor
linking to the master cam in the slow still mode,
and brakes it to a certain degree.
3.Capstan D.D. motor
A motive power which runs the tape. It transmits
the power via the Drive belt.
4.Drive belt
Transmits the power to run the tape to the Limiter
pulley.
No.Function
6.Limiter pulley ass’y
Transmits the power of the capstan D.D. motor to
the reel disk via the drive idler.
8.
Shifter
Transmits the operation of the master cam to break
ass’y, Ioading gear, tension arm and clutch lever.
9.
Take-up loading gear
Shifts the take-up pole base and guide roller via the
loading gear T, and applies the tape around the drum
assembly, as well as transmits the power to the
loading gears.
19
Page 20
13VT-R100/R150
13VT-CR10
ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF
MECHANICAL UNITS
The explanation given below relates to the on-site general service (field service) but it does not relates to the
adjustment and replacement which need high-grade equipment, jigs and skill. For example, the drum assembling,
replacement and adjustment service must be performed by the person who have finished the technical courses.
MECHANISM CONFIRMATION ADJUSTMENT JIG
So as to perform completely the mechanism adjustment prepare the following special jigs. So as to maintain the initial
performance of the machine the maintenance and check are necessary. Utmost care must be taken so that the tape
is not damaged. If adjustment needs any jig, be sure to sue the required jig.
No.Jig ltem Part No.
1.Torque Cassette MeterJiGVHT-063CZ
JiGTG0090CM
2.
Torque Gauge
JiGTG1200CN
3.Torque Gauge HeadJiGTH0006AW
4.Torque DriverJiGTD1200CB
Master Plane Jig and
5.
Reel Disk Height
Adjusting Jig
JiGRH0002BR
JiGMP0001BY
Code
ConfigurationRemarks
This cassette torque meter is used
for checking and adjusting the
torque of take-up for measuring tape
back tension.
These Jigs are used for checking
and adjusting the torque of take-up
and supply reel disks.
When fixing any part to the threaded
hole using resin with screw, use the
jig. (Specified torque 5 kg)
These Jigs are used for checking
and adjusting the reel disk height.
JiGSG2000BS
Tension Gauge
6.
JiGSG0300BF
Pinch pressing force
7.JiGADP003BK
measuring jig
Hex Wrench (1.2 mm)JiGHW0012AE
8.
Hex Wrench (1.5 mm)JiGHW0015AE
Reverse guide height
9.
adjusting box driver
JiGDRiVER11055
AR
There are two gauges used for the
tension measurements, 300 g and
2.0kg.
This Jig is used with the tension
gauge. Rotary transformer clearance adjusting jig.
These Jigs are used for loosening
or tightening special hexagon type
screws.
This Jig is used for height adjustment of the reverse guide (for reverse guide height adjustment).
20
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13VT-R100/R150
13VT-CR10
No.Jig ltem Part No.
Alignment Tape
10.
VROATSVCD
VRONBZGS
VROEBZCS
Guide roller height
11.
adjustment drive
X value adjustment
12.
gear type screw driver
Reverse Guide Height
13.
Adjusting Jig
JiGDRiVERH-4
JiGDRiVER-6
JiGRVGH-F18
Code
CB
AP
BM
BU
ConfigurationRemarks
These tapes are especially used for
electrical fine adjustment.
VideoAudio Hi-Fi Audio Track
525 Monoscope7k—58µm
NTSC Color Bar1k—58µm
525 Monoscope
525 Monoscope
7k
1k
This screwdriver is used for adjusting the guide roller height.
For X value adjustment
This Jig is used for height
adjustment of the reverse guide.
—
—
46/58
µm
19µm
21
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13VT-R100/R150
13VT-CR10
MAINTENANCE CHECK ITEMS AND EXECUTION TIME
Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine.
Maintained
Parts
Guide roller ass’y
500
hrs.
1000
hrs.
1500
hrs.
2000
hrs.
3000
hrs.
Possible symptom
encountered
Abnormal rotation or significant vibration requires replacement.
Remarks
Sup Guide Shaft
Retaining guide
Slant pole
Full-erase headColor and beating
A/C head
Upper and lower drum ass’y
Capstan D.D. Motor
Pinch roller
Reel belt
Tension band ass’yScreen swaying
Lateral noises Head
occasionally blocked
Small sound or sound
distortion
Poor S/N ratio, no color
Poor flatness of the envelope with alignment tape
No tape running, uneven
color
No tape running, tape
slack
No tape running, tape
slack, no fast forward/
rewind motion
Clean tape contact part with
the specified cleaning liquid.
Clean tape contact area with
the specified cleaning liquid.
Clean rubber and rubber
contact area with the
specified cleaning liquid.
Loading Motor
Idler ass’y
Limiter pulley
Supply/take-up Main brake levers
* This mechanism does not need electric adjustment with variable resistor. Check parts. If any deviation is found,
clean or replace parts.
Cassette not loaded or
unloaded
No tape running, tape
slack
Tape slack
22
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13VT-R100/R150
13VT-CR10
REMOVING AND INSTALLING THE CASSETTE HOUSING
• Removal
1. In the cassette eject mode, remove the cassette.
2. Unplug the power cord.
3. Remove in the following numerical order.
a) Remove two screws 1.
b) Slide and pull up the cassette housing control.
1
Notes:
1. When fitting the S/E sensor holder to the cassette
controller frame L/R, take care.
2. Misengagement of teeth of casecon drive gear and
drive angle gear causes malfunction. (The cassette
cannot be set, load and ejection are repeated).
3. In the case when you use the magnet screw driver,
never approach the magnet driver to the A/C head, FE
head, and drum.
4. When installing or removing, take care so that the
cassette housing control and tool do not contact the
guide pin or drum.
5. After installing the cassette housing control once perform cassette loading operation.
TO RUN A TAPE WITHOUT THE CASSETTE
HOUSING CONTROL ASSEMBLY
1. Short-circuit TP7701 and TP7702.
2. Plug in the power cord.
3. Turn on the power.
4. Open the lid of a cassette tape by hand.
5. Hold the lid with two pieces of vinyl tape.
6. Set the cassette tape in the mechanism chassis.
7. Stabilize the cassette tape with a weight (500g) to
prevent floating.
8. Perform running test.
Figure 1-1.
• Reassembly
1. Before installing the cassette housing control, shortcircuit TP7701 and TP7702 provided at the left of the
main PWB, prug in the power cord. The casecon drive
gear turns and stops when the positioning mark appears. Engage two teeth of casecon drive gear with
the three teeth of casecon drive angle gear, and set on
the mechanism chassis as shown below.
Casecon
drive gear
Casecon drive
angle gear
500g
Weight to prevent
float (500g)
Mechanism chassis
Figure 1-3.
Notes:
1. The weight should not be more than 500g.
2. Take care not to damage the tape when the Cassette
is set in the mechanism shassis or taken out of it
because the supply/take-up poles are shifted foward
the tape loading direction in the EJECT position.
Figure 1-2.
2. Install in the reverse order of removal.
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13VT-R100/R150
13VT-CR10
REEL DISK REPLACEMENT AND HEIGHT
CHECK
• Removal
1. Remove the cassette housing control assembly.
2. Pull the tension band out of the tension arm ass'y.
3. Remove the Sup/Tu main brake ass'y.
4. Open the hook at the top of the reel disk, and remove
the reel disk.
Note:
Take care so that the tension band ass'y and main brake
ass'y (especially soft brake) are not deformed.
Tension arm ass'y
Sup main brake ass'y
Tension band ass'y
Supply reel disk
Tu main brake ass'y
Take-up reel disk
4. Assemble the Sup main brake ass'y.
Notes:
1. When installing the reel disk, take due care so that the
tension band ass'y is not deformed and grease does
no adhere.
2. Do not damage the Sup main brake ass'y. Be careful
so that grease does not adhere to the brake surface.
• Reassembly (Take-up reel disk)
1. Clean the reel disk shaft and apply grease (SC-141) to
it.
2. Align the phase of the reel disk to that of the reel relay
gear and to install a new take-up reel disk onto the
shaft.
3. Check the reel disk height and reassemble the take-up
main brake ass'y.
Note:
1. Take care so that the Tu main brake ass'y is not
damaged. Take care so that grease does not adhere
the brake surface.
2. After reassembly, check the video search rewind back
tension (see page 27), and check the brake torque
(see page 29).
• Height checking and adjustment
1. Set the master plane with due care so that it does not
contact the drum.
2. When putting the master plane, shift the reverse guide
a little in the loading direction. Care must be taken
since excessive shift results in damage.
Figure 1-4.
Note:
When the tension band ass'y is pressed in the direction
of the arrow for removal, the catch is hard to be deformed.
Figure 1-5.
• Reassembly (Supply reel disk)
1. Clean the reel disk shaft and apply grease (SC-141) to
it.
2. Match the phases of reel disk and reel relay gear, and
set the new reel disk.
3. After checking the reel disk height, wind the tension
band ass'y around the reel disk, and insert into the hole
of tension arm ass'y.
Master plane
Reverse
guide
Supply reel disk
Cassette lock
release shaft
Take-up reel disk
Position
pin
Figure 1-6.
Note:
Check that the reel disk is lower than part A but higher
than part B. If the height is not correct, readjust the reel
disk height by changing the poly-slider washer under the
reel disk.
24
Page 25
13VT-R100/R150
13VT-CR10
Note:
Whenever replacing the reel disk, perform the height
checking and adjustment.
Master plane
10 ± 0.2mm
Reel disk
Reel disk
Reel disk height
adjusting jig
Mechanism chassis
A
B
Figure 1-7.
CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN FAST FORWARD MODE
• Remove the cassette housing control assembly.
• After short-circuiting TP7701 and TP7702 provided
at the left on the main PWB, plug in the power cord,
then turn on the power.
• Setting
1. Set a torque gauge to zero on the scale. Place it on the
take-up reel disk.
2. Press the FF button.
3. To calculate the remaining capacity of the play back
mode, slowly rotate the supply reel disk, and then shift
it into the forward mode.
• Checking
1. Turn the torque gauge slowly (one rotation every 2 to
3 seconds) by hand in the CW direction.
2. Make sure that the indication of torque gauge is not
less than 30mN·m (306gf·cm).
Notes:
1. Hold the torque gauge by hand so that it is not moved.
2. Do not keep the reel disk in lock state. Do not allow
long-time measurement.
CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN REWIND MODE
• Remove the cassette housing control assembly.
• After short-circuiting TP7701 and TP7702 provided
at the left on the main PWB, plug in the power cord,
then turn on the power.
• Setting
1. Set a torque gauge to zero on the scale. Place it on the
supply reel disk.
2. Press the rewind button.
3. To calculate the remaining capacity, slowly rotate the
take-up reel disk, and then shift it into the rewind
mode.
• Checking
1. Turn the torque gauge slowly (one rotation every 2 to
3 seconds) by hand in the CCW direction.
2. Make sure that the indication of torque gauge is not
less than 30mN·m (306gf·cm).
Torque gauge
30mN·m (306gf·cm)
or more
CCW
Torque gauge
30mN·m (306gf·cm)
or more
Idler ass'y
CW
The gauge is held at
its maximum value.
(Red mark)
Figure 1-8.
• Adjustment
1. If the FF winding-up torque is less than the specified
value, clean the capstan D.D. motor pulley, drive belt,
and limiter pulley with cleaning liquid, and check again.
2. If the torque is less that the set value, replace the reel
belt.
The gauge is held at
its maximum value.
(Red mark)
Supply reel disk
Idler ass'y
Figure 1-9.
• Adjustment
1. If the rewind winding-up torque is less than the specified value, clean the capstan D.D. motor pulley, drive
belt, and limiter pulley with cleaning liquid, rewind
again, and check the winding-up torque.
2. If the winding-up torque is still out of range, replace the
drive belt.
25
Page 26
13VT-R100/R150
13VT-CR10
Notes:
1. Hold the torque gauge by hand so that it is not moved.
2. Do not keep the reel disk in lock state. Do not allow
long-time measurement.
CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN RECORD/PLAYBACK MODE
• Remove the cassette housing control assembly.
• After short-circuiting TP7701 and TP7702 provided
at the left on the main PWB, plug in the power cord.
• Turn on the power.
• Open the cassette torque meter lid, and fix it with
tape.
• Load the cassette torque meter into the unit.
• Put the weight (500g) on the cassette torque meter.
• Turn on the power switch.
• Press the picture record button, and set EP picture
record mode (x3).
Set value EP6.9 ± 2.5mN⋅m (70 ± 25gf⋅cm)
CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN VIDEO SEARCH REWIND
MODE
• Remove the cassette housing control assembly.
• After short-circuiting TP7701 and TP7702 provided at the left on the main PWB, plug in the
power cord, then turn on the power.
• Setting
Press the playback button and rewind button to set the
video search rewinding mode.
• Checking
1. Place the torque gauge on the supply reel disk, and
turn it counterclockwise very slowly (one rotation every
1 to 2 seconds) and check that the torque is within the
set value 14.0 ± 3.9mN⋅m. (144 ± 40gf⋅cm)
Torque gauge
500g
Cassette torque meter
Figure 1-10.
• Checking
1. Make sure that value is within the setting 6.9 ± 2.5mN·m
(70 ± 25gf·cm).
2. The winding-up torque fluctuates due to variation of
rotation torque of limiter pulley ass'y. Read the center
value of fluctuation as setting.
3. Set the EP record mode (x3) and make sure that the
winding-up torque is within setting.
• Adjustment
If the playback winding-up torque is not within the setting,
replace the limiter pulley assembly.
Note:
When the torque cassette is set, put a weight (500g) to
prevent rise.
CCW
Supply reel disk
Figure 1-11.
Note:
Surely put the torque gauge on the reel disk to measure.
If the torque gauge is raised, accurate measurement is
impossible.
• Adjustment
1. If the rewinding playback winding-up torque is not
within the setting, replace the limiter pulley assembly.
Note:
The winding-up torque fluctuates due to variation of
rotation torque of supply reel disk. Read the center value
of fluctuation as setting.
26
Page 27
CHECKING THE VIDEO SEARCH REWIND
BACK TENSION
• Remove the cassette housing control assembly.
13VT-R100/R150
13VT-CR10
• After short-circuiting TP7701 and TP7702 provided at the left on the main PWB, plug in the
power cord, then turn on the power.
• Checking
1. After pressing the play button, press the rewind button, and set the video search rewind mode.
2. Place the torque gauge on the take-up reel disk, and
turn it counterclockwise very slowly (one rotation every
2 to 3 seconds) and check that the torque is within the
set value 3.4 ± 1.5mN⋅m (35 ± 15gf⋅cm).
Torque gauge
CCW
Take-up reel disk
Pinch roller
Capstan shaft
Tension gauge adapter
Tension gauge
900 - 1,200g
Figure 1-13.
1. Detach the pinch roller from the capstan shaft.
Do not separate excessively. Or the pinch lever and
pinch double action lever may disengage.
2. Engage the tension gauge adapter with the pinch roller
shaft, and pull in the arrow direction.
3. Gradually return the pinch roller, and measure the
pulling force when the pinch roller contacts the capstan shaft.
4. Make sure that the measured value is within setting
0.9 to 11.8 N (900 to 1,200g).
CHECKING AND ADJUSTMENT OF TENSION
POLE POSITION
• Remove the cassette housing control assembly.
Figure 1-12.
Note:
Set the torque gauge securely on the take-up reel disk. If
it is not secure, the measurement will be incorrect.
CHECKING THE PINCH ROLLER PRESSURE
• Remove the cassette housing control assembly.
• After short-circuiting TP7701 and TP7702 provided at the left on the main PWB, plug in the
power cord, then turn on the power.
• Checking
Press the play button to set the playback mode.
• After short-circuiting TP7701 and TP7702 provided at the left on the main PWB, plug in the
power cord, then turn on the power.
• Setting
1. Open the cassette tape (T-120), and fix with tape.
2. Set the cassette tape in loading state.
3. Put the weight (500g) on the cassette tape.
4. Make the adjustment with the beginning of a T-120
tape.
(T-120)
500g
Weight to prevent
float (500g)
Figure 1-14.
• Checking
1. Set a cassette tape, push the REC button to place the
unit in the SP record mode. Now check the tension
pole position.
27
Page 28
13VT-R100/R150
13VT-CR10
2. Visually check to see if the right edge of the tension
pole is within the 1.5 ± 0.25mm from the right edge of
the Sup guide shaft.
Sup guide shaft
Tension pole
1.5 ± 0.25mm
-0.1
1.6mm
-0.6
Make the adjustment with the beginning of a T-120 tape.
Figure 1-15.
At left side from the center line
Tension pole adjuster adjusting range
Tension pole adjuster
90°
90°
Figure 1-18.
Adjust so that the delta mark of tension pole adjuster
is within 90° range (left, right).
CHECKING AND ADJUSTMENT OF RECORD/
PLAYBACK BACK TENSION
• Remove the cassette housing control assembly.
1.5 ± 0.25mm
Figure 1-16.
Insert the slotted screwdriver in the tension pole adjuster,
and rotate counterclockwise.
At right side from the center line
1.5 ± 0.25mm
Figure 1-17.
• After short-circuiting TP7701 and TP7702 provided at the left on the main PWB, plug in the
power cord, then turn on the power.
• Setting
1. Open the torque cassette meter and fix with tape.
2. Set the cassette tape in loading state.
3. Put the weight (500g) on the cassette torque meter.
500g
Weight to prevent
float (500g)
Cassette torque
meter
Figure 1-19.
Insert the slotted screwdriver in the tension pole adjuster,
and rotate clockwise.
• Checking
1. Push the REC button to place the unit in the SP record
mode.
2. At this time ascertain that the back tension is within the
setting (36.5 to 52g·cm) by seeing the indication of
torque cassette meter.
28
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13VT-R100/R150
13VT-CR10
• Adjustment
1. If the indication of torque cassette meter is lower than
the setting, shift the tension spring engagement to the
part A.
2. If the indication of torque cassette meter is higher than
the setting, shift the tension spring engagement to the
part B.
• After short-circuiting TP7701 and TP7702 provided at the left on the main PWB, plug in the
power cord, then turn on the power.
• Setting
1. Set a torque gauge to zero on the scale. Place it on the
supply reel disk.
2. Switch from the FF mode to the STOP mode.
3. Disconnect the power cord.
• Checking
Turn the torque gauge at a rate of about one turn/2 sec
in the CW direction/CCW direction with respect to the
supply reel disk so that the reel disk and torque gauge
pointer rotate at equal speed, and make sure that the
value is within the setting (CW direction: 8.8 to
23.5mN·m (90 to 240gf·cm); CCW direction: 3.9 to
9.8mN·m (40 to 100gf·cm).
• Setting
1. Switch from the FF mode to the STOP mode.
2. Disconnect the power cord.
3. Set a torque gauge to zero on the scale. Place it on the
take-up reel disk.
• Checking
1. Turn the torque gauge at a rate of about one turn/2 sec
in the CCW direction/CW direction so that the reel disk
and torque gauge pointer rotates at equal speed and
make sure that the value is within the setting (CCW
direction: 8.8 to 23.5mN·m (90 to 240gf·cm), CW
direction: 4.9 to 11.8mN·m (50 to 120gf·cm).
2. Adjustment of the brake torque at the supply side and
the take-up side
• Unless the supply side brake torque or take-up side
brake torque is within the setting, clean the felt surface
of reel disk (supply, take-up) brake lever, check again
the brake torque.
• If value cannot be set within the setting yet, replace the
main brake ass'y or main brake spring.
29
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13VT-R100/R150
13VT-CR10
REPLACEMENT OF A/C (Audio/Control) HEAD
1. Remove the cassette housing control assembly.
2. In unloading state, unplug the power cord.
• Removal
1. Remove the screws 123, Azimuth screw and Tilt
screw.
2. Unsolder the PWB fitted to the A/C head
Notes:
1. When replacing, never touch the head. If you touched,
clean with the cleaning liquid.
2. When removing the screw 3, take care so that the
spring may spring out.
Tilt screw
3
Azimuth screw
Height screw
Spring
2
Figure 1-23.
1
3. Align the left end of gear of A/C head arm with the
punched mark of chassis, tentatively tighten the screws
1 and 2 so as to ensure smooth motion of A/C head
arm. Tentative tightening torque must be 0.15 to 0.20
N·m (1.5 to 2.0kgf·cm).
1
3
Height screw
Left end of A/C head plate gear
2
Punched line mark on chassis
Figure 1-25.
Notes:
1. If the screws 1 and 2 are tighten tentatively too
loose, the azimuth and height of A/C head may change
when they are finally tightened. Therefore care must
be taken.
2. After completion of A/C head be sure to adjust tape
running. (Execute the running adjustment by the
method described in Page 32, 33.)
• Replacement
1. Solder the removed PWB to the new head assembly.
2. Adjust the height from the A/C head arm (lower surface) to the A/C head plate to 10.8mm with slide
calipers. (3 places of azimuth screw section, tilt screw
section and A/C head front section) (See the figure
below.)
Solder
New A/C head ass'y
A/C head PWB
Never touch the head
A/C head plate
10.8mm10.8mm
Figure 1-24.
30
Page 31
13VT-R100/R150
13VT-CR10
A/C HEAD HEIGHT ROUGH ADJUSTMENT
• Setting
Azimuth screw
Height screw
500g
Weight to prevent
float (500g)
Tilt screw
Cassette tape
Mechanism chassis
HEIGHT ADJUSTMENT OF REVERSE GUIDE
1. Adjust the height from the mechanism chassis to the
reverse guide lower flange to 13.38mm, using the
reverse guide height adjustment jig, in tape loading
state. (Refer to Figure 1-28 (a) (b).)
Reverse guide
Reverse guide height
adjusting jig
Mechanism
chassis
(a)
Figure 1-28.
2. Rotate counterclockwise the reverse guide height
adjustment nut 1/10 turn. (For height adjustment use
the reverse guide height adjustment box driver
(JiGDRiVER11055)).
Reverse guide height
adjusting jig
13.38mm
(b)
Figure 1-26.
1. Set the cassette tape in the unit.
2. Press the PLAY button to put the unit in the playback
mode.
3. Roughly adjust the height of the A/C head by turning
the height screw until the tape is in the position shown
below.
A/C head
Tape
0.3mm
Figure 1-27.
• Adjustment
Adjust the height screwvisually so that the control head
is visible 0.3mm below the bottom of the tape.
Box driver
CCW
Height adjusting nut
Figure 1-29.
3. Set the tape, and check for tape crease near the
reverse guide in the playback mode.
If crease is found, turn the reverse guide adjustment
nut to remove crease. (As for crease check refer to
Figure 1-30.)
500g
Weight to
prevent float (500g)
A
Mechanism
chassis
Reverse guide
Capstan
motor shaft
Fixing
guide
An example of
crease near the
reverse guide
* Check for crease from the A direction.
Figure 1-30.
31
Page 32
13VT-R100/R150
13VT-CR10
ADJUSTMENT OF TAPE DRIVE TRAIN
1. Tape run rough adjustment
1 Remove the cassette housing control assembly.
2 After shortcircuiting TP7701 and TP7702 provided
at the main PWB, plug in the power cord, then turn
on the power.
3 Check and adjust the position of the tension pole.
(See page 28.)
4 Check and adjust the video search rewind back
tension. (See page 27.)
5 Connect the oscilloscope to the test point for PB
CHROMA envelope output (TP3301). Set the synchronism of the oscilloscope to EXT. The PB
CHROMA signal is to be triggered by the head
switching pulse (TP3302).
6 Set the alignment tape (VRONBZGS) to play. (Put
a 500g weight on the cassette tape to prevent lift of
cassette tape.)
Guide roller
Cassette Tape
500g
Weight of 500g
Figure 1-31.
Notes:
1. Previously set the tracking control in the center position, and adjust the envelope waveform to maximum
with X value adjustment nut. Thereby the tape run
rough adjustment is facilitated.
2. Especially the outlet side envelope waveform must
have higher flatness.
Figure 1-32.
2. Adjustment of A/C head height and azimuth
1 Perform the initial setting of A/C head position by
the method stated in "Page 30 Replacement 3".
2 Connect the oscilloscope to the audio output
(TP6601).
3 Using the alignment tape in which 1 kHz linear
audio signal has been recorded, adjust the height
screw so as to get max audio output.
4 Using the alignment tape in which 7 kHz linear
audio signal has been recorded, adjust the azimuth screw so as to get max audio output.
7 Press the tracking button (+), (–) and change the
envelope waveform from max to min and from min
to max. At this time make sure that the envelope
waveform changes nearly parallel.
8 Unless the envelope waveform changes nearly
parallel, adjust the height of supply side and takeup side guide roller so that the envelope waveform
changes nearly parallel. (For envelope adjustment
procedure refer to Figure 1-35.)
9 Turn the tilt screw to remove the tape crease at the
fixing guide flange.
Play back the tape and check for tape crease at the
fixing guide flange.
(1)If there is no tape crease
Turn the tilt screw clockwise so that tape crease
appears once at the flange, and then return the
tilt screw so that the crease disappears.
(2)If there is tape crease
Turn counterclockwise the tilt screw so that the
tape crease disappears.
(Reference) If the tilt screw is turned clockwise
crease appears at the lower flange.
For X value adjustment
Adjust the X value, turning the geartype screwdriver.
Figure 1-33.
32
Page 33
13VT-R100/R150
13VT-CR10
3. Tape run adjustment
1 Connect the oscilloscope to PB CHROMA envelope
output test point, set oscilloscope sync to EXT,
trigger-input the PB CHROMA signal (head switching pulse).
2 Rough adjustment of X value
Tentatively fix A/C head arm screws 1 and 2 by
the method described in Page 30 "Replacement 3".
After shortcircuiting TP7701 and TP7702, plug in the
powercord, then turn on the power. And playback the
alignment tape (VRONBZGS). As a result the autotracking is automatically cancelled, so that the X
value adjustment mode is set.
Move the A/C head with the X value adjustment gear
driver (JiGDRiVER-6) by the method shown in Figure
1-33, and adjust the A/C head so as to get the
maximum envelope waveform. (Note: When the A/C
head is adjusted, adjust so that the maximum envelop waveform is obtained nearest the position of
initial setting made in Page 30.)
3 Next, change the alignment tape to VROEFZCS to
play back. Press the tracking button (+), (–) and
change the envelope waveform from max to min and
When the tape is above the helical lead.
Supply side
PB CHROMA
Envelope
CH-1CH-2
Head switching pulse
Figure 1-34.
from min to max. At this time adjust the height of
supply and take-up side guide roller with the adjustment driver (JiGDRiVERH-4) so that the envelope
waveform changes nearly parallel.
4 If the tape is lifted or sunk from the helical lead
surface, the PB CHROMA envelope waveform appears as shown in Figure 1-35.
5 Press the tracking button (+), (–) and make sure that
the envelope waveform changes nearly parallel.
6 Finally check tape crease near the reverse guide. If
tape crease is found, remove it as stated in Page 31
"HEIGHT ADJUSTMENT OF REVERSE GUIDE"
item 3.
When the tape is below the helicallead.
Take-up sideSupply sideTake-up side
Supply side guide roller
rotated in clockwise
direction (lowers guide
roller) to flatten
Adjustment
envelope.
4. A/C head X value adjustment
1 Tentatively fix A/C head arm screws 1 and 2 by
the method described in Page 30 "Replacement 3".
2 After shortcircuiting TP7701 and TP7702, plug in the
powercord, then turn on the power. And playback the
alignment tape (VROEFZCS). As a result the autotracking is automatically cancelled, so that the X
value adjustment mode is set.
3 Move the A/C head with the X value adjustment gear
driver by the method shown in Figure 1-33, and
adjust the A/C head so as to get the maximum
envelope waveform. (Note: At this time adjust so as
to get the maximum envelope waveform nearest the
A/C head position which has been set in case of X
value rough adjustment as stated in Page 33, 3- 2.)
4 Tighten finally the screws 1 and 2. Be sure to
tighten at first the screw 1 and then the screw 2.
Take-up side guide roller
rotated in clockwise
direction (lowers guide
roller) to flatten
envelope.
Figure 1-35.
Final tightening torque is 0.6N·m (If the screw 2 is
tightened first, the X value may deviate.)
5 Adjust the playback switching point (Refer to the
electric adjustment method.)
6 Playback the self-picture-recorded tape, and check
the flatness of envelope waveform and sound.
Note:
When the A/C head X value adjustment is performed, be
sure to perform at first X value rough adjustment (refer to
Page 33, 3-2).
Supply side guide roller
rotated in counterclockwise direction (raises
guide roller) to make the
tape float above the helical
lead. The supply
side guide roller is then
rotated in the clockwise
direction to flatten the
envelope.
2
Figure 1-36.
Take-up side guide roller
rotated in counterclockwise direction (raises
guide roller) to make the
tape float above the
helical lead. The take-up
side guide roller is then
rotated in the clockwise
direction to flatten the
envelope.
1
33
Page 34
13VT-R100/R150
13VT-CR10
REPLACEMENT OF THE CAPSTAN D.D.
(DIRECT DRIVE) MOTOR
• Remove the mechanism from the main PWB (refer to
Page10 "DISASSEMBLY AND REASSEMBLY" Remove the cassette housing Assembly.
• Removal (Follow the order of indicated numbers.)
1. Remove the reel belt 1.
2
Capstan D.D. motor
Capstan D.D.
motor
control PWB
REPLACEMENT OF DRUM D.D. MOTOR
1. Set the eject mode.
2. Withdraw the main power plug from the socket.
• Removal (Perform in numerical order.)
1. Disconnect the FFC cable 1.
2. Unscrew the D.D. stator assembly fixing screws 2.
3. Take out the D.D. stator assembly 3.
4. Unscrew the D.D. rotor assembly fixing screws 4.
5. Take out the D.D. rotor assembly 5.
Notes:
1. In removing the D.D. stator assembly, part of the drum
earth spring pops out of the pre-load collar.
Be careful not to lose it.
2. Install, so that the D.D. rotor ass'y and upper drum
ass'y mounting direction check holes align.
(Align the upper drum dent with the rotor hole.)
3. Be careful not to damage the upper drum or the video
head.
4. Protect the hole elements from shock due to contact
with D.D. stator or D.D. rotor ass'y.
5. After installation adjust the playback switching point
for adjustment of servo circuit.
1
Reel belt
Figure 1-37.
2. Remove the three screws 2.
• Reassembly
1. Taking care so that the capstan shaft does not contact
the mechanism chassis, set its position on the mechanism chassis, and then install with the three screws.
2. Install the reel belt.
Notes:
1. After installing the capstan D.D. motor, be sure to
rotate the capstan D.D. motor and check the movement.
2. Set the tape, and check for the tape crease near the
reverse guide in the playback mode. Adjust the A/C
head and azimuth as stated in Page 32 item 2. If
crease is found, adjust as stated in Page 31 "HEIGHT
ADJUSTMENT OF REVERSE GUIDE".
4
5
2
Figure 1-38.
D.D. stator ass'y
3
4
D.D. rotor ass'y
Upper drum
1
FFC
34
Page 35
13VT-R100/R150
13VT-CR10
REPLACING THE UPPER AND LOWER DRUM
ASSEMBLY
• Replacement (Perform in the numerical order)
1 Remove the motor as stated in Page 34 D.D. motor
replacement.
2 Remove the drum earth brush 2.
3 Remove the drum base 3 from the upper and lower
drum assembly 1.
[Cares when replacing the drum]
1. Be careful so that the drum earth brush is not lost.
2. Do not touch directly the drum surface.
3. Fit gently the screwdriver to the screws.
4. Since the drum assembly is an extremely precise
assembly, it must be handled with utmost care.
5. Make sure that the drum surface is free from dust, dirt
and foreign substances.
6. After replacing the drum be sure to perform the tape
running adjustment.
After that, perform also the electrical adjustment.
• Playback switching point adjustment
• X-position adjustment and check
7. After replacing the drum clean the drum.
ASSEMBLING OF PHASE MATCHING
MECHANISM COMPONENTS
• Assemble the phase matching mechanism components in the following order.
1. Assemble the pinch roller assembly and pinch drive
cam.
2. Mounting the shifter (on the back of the mechanism
chassis).
3. Mounting the master cam (on the back of the mechanism chassis).
4. Assemble the connection gear, slow brake and loading motor parts.
• Pinch drive cam and pinch roller
assembling method.
(Place the following parts in position in numerical
order.)
(1)Reverse drive lever 1
(2)Reverse guide spring 2
(3)Reverse guide lever ass’y 3
(4)Reverse guide height adjusting nut 4
(5)Pinch drive cam 5
(6)Pinch roller ass’y 6
(7)Open lever 7
7
2
1
3
Figure 1-39.
Figure 1-40.
4
3
2
6
1
5
35
Page 36
13VT-R100/R150
13VT-CR10
1Insert Reverse Guide Lever Ass’y
2 Insert pinch drive cam
Turn the reverse guide lever
assembly counterclockwise
to the stopper.
Insert reverse guide lever ass'y
Align here.
Fit the pinch drive cam so that the notch of pinch
drive cam aligns with the dent of pinch drive lever
assembly.
Fit the pinch drive cam so that the notch of
pinch drive lever assembly aligns with the
half-round notch of chassis.
Pinch drive lever ass'y
Figure 1-41-1.
2Insert Pinch Roller/Pinch Double Action Lever Ass’y.
Pinch Roller Double
Action Lever Ass'y
Phase Matching Point 2
3Insert Open Lever.
Open lever
Figure 1-41-2.
Figure 1-41-3.
36
Page 37
13VT-R100/R150
13VT-CR10
INSTALLING THE SHIFTER
Capstan
D.D. motor
Reel pulley
(Bottom side of mechanism chassis)
Figure 1-42.
Insert
point 3
Drum
1. Make sure that the loading gear is at the point 1 as
shown below.
2. Install, paying attention to 6 insertion points and 3
release points.
3. For the phase matching at the insertion point 1, see
the point 2 as shown below.
4. Finally fix the inserts 1 and 4.
Phase-Matching
point 2
Loading gear (T)
Round mark
Sifter
Half round notch
Insert
point 1
Shaft 1
Insert
point 2
Rotation
point 2
Shaft 1
Insert
point 4
Shaft 2
Insert
point 6
Phase-matching
point 1
Shaft 1
Figure 1-43.
37
Release
point 3
Page 38
13VT-R100/R150
13VT-CR10
INSTALLING THE MASTER CAM (AT REAR
SIDE OF MECHANISM CHASSIS)
1. Make sure beforehand that the shifter is at the point as
shown below.
2. Place the master cam in the position as shown below.
E-ring
(XRESJ30-06000)
Master cam
Fully turn
clockwise
Fully turn counterclockwise
Face the wide tooth side ward
Figure 1-44-1.
REPLACEMENT OF LOADING MOTOR
• Removal
Apply grease
Apply grease
No grease
Note:
See the figure below for the phase matching between the
master cam and the casecon drive gear.
3. Finally fix with the E-ring.
Master cam
Casecon drive gear
Half-round notch
Round mark
When installing the master cam,
align the casecon drive gear
round mark with the half-round
notch of master cam.
Figure 1-44-2.
Figure 1-45.
• Replacement
1. Remove the loading motor, and install the replacement loading motor as shown below.
+0.2
10.2 mm
–0.2
Figure 1-46.
The loading motor pressing-in must be less than
14.7 N (15 gf).
Adjust the distance between motor and pulley to
+0.2
10.2 mm).
–0.2
38
Page 39
ASSEMBLY OF CASSETTE HOUSING
1. Drive Gear and R Drive angle ass’y
Apply grease
13VT-R100/R150
13VT-CR10
MSPRT0381AJFJ
Apply grease
Apply grease
Figure 1-47.
2. Synchro Gear, Drive Gear L and Drive Gear R
Top surface should be free from scratches or soil.
LANGF9592AJFW
Drive angle
Drive gear R
Frame
Figure 1-48.
39
Page 40
13VT-R100/R150
13VT-CR10
ADJUSTMENT OF THE VCR ELECTRICAL CIRCUITRY
Notes:
» Before the adjustment:
Electrical adjustments described here are often required after replacement of electronic components and mechanical
parts such as video heads.
Check that the mechanism and all electric components are in good working condition prior to the adjustments,
otherwise adjustments can not be completed.
» Instruments required:
Dual-trace oscilloscope
Blank video cassette tape
Screwdriver for adjustment
Color bar generator
DC voltmeter
Alignment tape (VROATSV), (VRONBZGS)
» Adjustment of the VCR should be done in the TV/VCR combinated style. But there is a function to cut off the high
voltage of TV . Namely, you can check only VCR part by taking the wire lead RC off . Therefore you can use function
on the occasion of checking and adjusting VCR part.
SERVO CIRCUIT ADJUSTMENT
ADJUSTMENT OF HEAD SWITCHING
POINT
MeasuringDual-trace oscilloscope
instrument
ModePlayback
CassetteAlignment tape (VROATSV)
Test pointTP2201 (Video Out) to CH1
TP3302 (Trigger) to CH2
ControlRemote Control
Specification5.5 ± 0.5H (lines)
1. Play the alignment tape.(VROATSV.)
2. Press the CH " (TR —) button and the "0" button of
remote control at the same time to turn the set into the
adjustment mode for head switching point and to set
the tracking to center. (See Notes below) "T" is
displayed on the TV screen.
3. Press the PLAY button of remote control to make the
adjustment of head switching point, then the leading
edge of the head switching pulse is automatically set
5.5H (lines) ahead of the vertical sync as shown Figure
2-1 and the adjustment data is memorized in the E2PROM IC.
4. Then press the stop button to stop the tape.
CH-1
VIDEO OUT
CH-2
HEAD
SWITCHING
PULSE
5.5±0.5H(Iines)
Figure 2-1.
CH-1:1V/div 50µsec/div
CH-2:2V/div 50µsec/div
V-sync.
Notes:
1 T o make this adjustment, disable the AUTO TRACKING
function.
» The AUTO TRACKING function is disable in the
following cases. (In the playback mode only.)
a When the CH " (TR —) button and the "0" button
of the remote control are pressed at the same time.
b When the AC cord is plugged in with making TP7701
and TP7702 short circuited, after the cassette
housing control ass'y is removed.
(Mechanism operating mode)
» The AUTO TRACKING function becomes available in
the following cases.
a When the CH ' (TR ±) button and the CH" (TR
—) button of the remote control are pressed at the
same time.
b When the AC cord is plugged in with the cassette
housing control ass'y put back.
2 Pressing both the CH " (TR —) and the "0" button
transmits the test code. When the unit receives this
test code in the playback mode, the unit is turned into
the adjustment mode for the head switching point and
"T" is displayed at the position of CH number on the
screen. This function is available to the remote control
RRMCG1330PESA and RRMCG1330PESB.
40
Page 41
Ë Test points layout of Main Unit.
13VT-R100/R150
13VT-CR10
ADJUSTMENT OF STILL PICTURE
VERTICAL SYNC
MeasuringMonitor screen
instrument
ModeEP still picture playback
Input signalSelf-recording tape
Test pointMonitor screen
ControlCH '/" (TR ±/ —) buttons
SpecificationNo Vertical jitter
Figure 2-2.
1. Play back the EP Self-recorded tape in the still mode.
2. Using the CH '/" (TR ±/ —) buttons on the remote
control or on the front pannel, make adjustment so that
the vertical jitter becomes minimum.
3. Then press the STOP button to stop the tape.
Note:
The data of this adjustment is memorized to the E2P-ROM
IC.
41
Page 42
13VT-R100/R150
13VT-CR10
FLOW CHART NO.1-1
TROUBLESHOOTING OF VCR SECTION
Only Eject key is
functioning.
FF/REW key not
function.
When loading,
pinch roller
See FLOW
CHART NO. 1-2.
See FLOW
CHART NO. 1-3.
After loading finish,
doesn't touch the
capstan.
is the loading stop
NO
YES
NO
rotate?
Check CAM
switch
Check the
pressure of the
pinch roller.
Check power circuit.
NO
YES
The VCR is dead. (No Power)
Unplug the AC power cord. Replug
it a few minutes later.
VCR POWER TROUBLESHOOTING
ELECTRICAL TROUBLESHOOTING
Are the AT 5V and AT 12V lines
Check poor soldering.
NO
YES
normal?
Are the AT 5V and GND lines
properly connected with IC2001?
Check power circuit.
Check all sensors and
their connections with
Check X7701 and
IC2001.
NO
NO
YES
YES
Is there oscillation (14MHz) at pin
Are the PC 5V lines normal?
(37) and (38) of IC2001?
IC2001.
NO
YES
Check the sensor inputs to IC2001
from mechanism. (CAM switches,
start/end sensors & reel sensors)
After loading for 5
secs, tape stop.
Are there reel
After loading for 3
secs, tape stop.
Are there H.SW.P
YES
Check the tape.
NO
Is the tape in the write
Only REC key is not functioning.
protection?
YES
pulse at pin (2) and
(3) of IC2001?
at pin (23) of
IC2001?
YES
Replace IC2001
NO
YES
Replace IC2001
Replace REC TIP
SWITCH.
NO
YES
Is the REC TIP switch
normally function?
See FLOWCHART
NO. 1-11.
See FLOWCHART
NO. 1-10.
Check IC2001.
42
NO
No power(5V).
Does power control
(H) signal at pin (4)
YES
level?
Check IC765.
NO
YES
Is the PC 9V line
Change IC2001.
of IC2001 change
from "L" to "H"
(PC 9V GEN)
NO
YES
normal?
Check IC756 and
Q756.(PC 5V
GEN)
YES
Check peripheral
Is the PC 5V line
normal?
circuit for poor
soldering of PC 9V
and PC 5V lines.
Page 43
FLOW CHART NO.1-3
Check Q7703 and Q7704.
OR Check cassette tape.
Check the condition of the
master cam and relay gear.
NO
See FLOW CHART NO. 1-8.
See FLOW CHART NO. 1-5.
Are there a normal CAM SW
signal at pin (6) and (7) of
Check D7704 and D7705.
Check IC2001.
IC2001?
See FLOW CHART NO. 1-6.
See FLOW CHART NO. 1-10.
See FLOW CHART NO. 1-8.
Change idle reel assembly.
13VT-R100/R150
13VT-CR10
See FLOW CHART NO. 1-11.
NO
YES
FF / REW does not function.
Are both start sensor, Q7703
and end sensor, Q7704
become "H" level?
FLOW CHART NO.1-2CASSETTE CONTROL TROUBLESHOOTINGFF/REW DISFUNCTION TROUBLESHOOTING
NO
After the cassette tape is
inserted and the FF key is
pushed, is it become
"confirmation balance of
tape" mode?
Check the start sensor cover.
Check the start sensor, Q7703 and
NO
YES
After "confirmation balance
of tape" mode finish,is the
the way up to pin (79) of IC2001.
NO
YES
loading motor rotated when
the FF / REW key is pushed?
Check pin (91) of IC2001 and all the
way up to pin (11) of IC7706.
YES
Is the master cam rotating in
the position of FF mode?
Check IC7706 and AT 12V line.
NO
Check the connection between
IC7706 and the loading motor.
NO
YES
Is the drum motor rotating?
NO
YES
Is the H.SW.P. signal detected?
Is the capstan motor rotating?
NO
YES
Is the wheel that connected
NO
YES
with the idle reel rotating?
YES
Are the supply reel and take up
reel pulses at pin (3) and (2) of
IC2001, respectively?
Cassette tape is defective.
YES
A cassette tape is not taken in.
Is the cassette housing distored?Fix or replace the cassette housing.
1. The unit of resistance "ohm" is omitted
(K=1000 ohms, M =1 Meg ohm).
2. All resistors are 1/10 watt, unless otherwise noted.
3. All capacitors are 50V, unless otherwise noted.
4. All capacitors are µF, unless otherwise noted. (P: µµF)
5. (G) indicates ±2% tolerance may be used.
VOLTAGE MEASUREMENT CONDITIONS:
1. All DC voltages are measured with DVM connected
between points indicated and chassis ground, line
voltage set at 120V AC and all controls set for normal
picture unless otherwise indicated.
2. All voltages measured with 1000µV B&W or Color
signal.
WAVEFORM MEASUREMENT CONDITIONS:
1. Photographs taken on a standard gated color bar
signal, the tint setting adjusted for proper color. The
wave shapes at the red, green and blue cathodes of
the picture tube depend on the tint, color level and
picture control.
indicates waveform check points (See chart,
2.
waveforms are measured from point indicated to
chassis ground.)
å
AND SHADED ( ) COMPONENTS
= SAFETY RELATED PARTS.
ç
MARK= X-RAY RELATED PARTS.
DRGANNES MARQUES åET HACHRES ( ):
PIECES RELATIVES A LA SECURITE.
MARQUE ç : PIECS RELATIVE AUX RAYONS X.
This circuit diagram is a standard one, printed circuits
may be subject to change for product improvement
without prior notice.
WAVEFORMS
70
Page 64
SCHEMATIC DIAGRAM: CRT Unit
H
G
F
13VT-R100/R150
13VT-CR10
E
D
C
B
A
654321
71
Page 65
SCHEMATIC DIAGRAM: MAIN-1 Unit (TV Section)
H
G
F
13VT-R100/R150
13VT-CR10
E
D
C
B
A
121110987654321
72
73
Page 66
SCHEMATIC DIAGRAM: MAIN-2 Unit (TV Section)
H
G
F
13VT-R100/R150
13VT-CR10
E
D
C
B
A
121110987654321
74
75
Page 67
SCHEMATIC DIAGRAM: POWER and FRONT AV Unit (TV Section)
H
G
F
13VT-R100/R150
13VT-CR10
E
D
C
B
A
121110987654321
76
77
Page 68
MODELS 13VT-R100/R150
SCHEMATIC DIAGRAM: MAIN-3 Unit (VCR Section)
H
G
F
13VT-R100/R150
13VT-CR10
E
D
C
B
A
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Page 69
MODEL 13VT-CR10
SCHEMATIC DIAGRAM: MAIN-3 Unit (VCR Section)
Replacement parts which have these special safety characteristics identified in this manual ; electrical components having such features are
identified by å and shaded areas in the Replacement Parts Lists and
Schematic Diagrams. The use of a substitute replacement part which
does no have the same safety characteristic as the factory recommended
replacement parts shown in this service manual may create shock, fire
or other hazards.
"HOW TO ORDER REPLACEMENT PARTS"
To have your order filled promptly and correctly, please furnish the following informations.
1. MODEL NUMBER2. REF . NO.
3. PART NO.4. DESCRIPTION
in USA:Contact your nearest SHARP Parts Distributor to order. For
Ref. No.Part No.★DescriptionCode
location of SHARP Parts Distributor, Please call Toll-Free;
1-800-BE-SHARP
★ MARK: SPARE PARTS-DELIVERY SECTION
' MARK: X-RAY RELATED PARTS
PICTURE TUBE
'åVB34KPU02X/~SJ Picture TubeBZ
åRCiLG0098PEZZR Degaussing CoilAG
'åDY601 RCiLH0141PEN2R Deflection YokeAZ
or
RCiLG0085PEZZ
or
RCiLG0403PEZZ
or
RCiLH0142PEN2
or
RCiLH0143PEN2
PMAGF3045CEZZ J Purity MagnetAG
QEARC1435PEZZ R Grounding PartAE
PSPAG0004PEZZ R SpacerAB
PRINTED WIRING BOARD ASSEMBLYS
(NOT REPLACEMENT ITEM)
PWB-ADUNTKA326FMV2 – MAIN Unit
PWB-ADUNTKA326FMV3 – MAIN Unit (13VT-CR10)—
PWB-BDUNTKA039WEV3 – CRT Unit—
PWB-CDUNTKA327WEV2 – POWER Unit—
(13VT-R100/R150)
PWB-CDUNTKA327WEV3 – POWER Unit (13VT-CR10) —
PWB-DDUNTKA328WEV0 – FRONT AV Unit—
(13VT-R100/R150)
—
CHANGE DES PIECES
Les pi`eces de rechange qui pr élelesentent ces caract éleristiques sp
éleciales de s élecurit éle, sont identifi élees dans ce manuel : les pi`eces
élelectriques qui pr élesentent ces particularit éles, sont rep éler élee
par la marque å et sont hachur élees dans les listes de pi`eces et dans
les diagrammes sch élematiques.
La substitution d'une pi`ece de rechange par une autre qui ne pr éLesente
pas les m éoemes caract éLeristiques de s élecurit éle que la pi`ece
recommand élee parl'usine et dans ce manuel de service, peut provoquer
une éLelectrocution, un incendie ou toutautre sinistre.
"COMMENT COMMANDER LES PIECES DE RECHANGE"
Pour que votre commande soit rapidement et correctement remplie,
veuillez fournir les renseignements suivants.
1. NUMERO DU MODELE2. NO. DE REF
3. NO. DE PIECE4. DESCRIPTION
in CANADA:Contact SHARP Electronics of Canada Limited
(SW2.6P+5S)
67PGiDC0056GEFW J Drum BaseAL
68QPWBF5468AJZZ V PWB(LDG Motor)AE
69QPLGZ0292GEZZ J Socket(LDG Motor)AE
70MSPRC0228AJFJ V Azimuth SpringAB
71MSPRC0224AJFJ V Height Adjusting springAC
1LBNDK1011AJZZV Tension Band Ass’yAH
2LBOSZ1007AJZZ V Tension Arm bossAD
4LBOSZ1006AJZZ V Cassette Stay LAD
5LCHSM0174AJZZ V Main Chassis Ass’yAV
6LHLDZ2016AJZZV Loading Motor BlockAG
7LPOLM0070GEZZ J Supply Pole Base Ass’yAK
8LPOLM0064GEZZ J Take-Up Pole Base Ass’yAM
9MLEVF0518AJZZ V Take-Up LoadingAF
Arm Ass’y
10MLEVF0519AJZZ V Supply LoadingAF
Arm Ass’y
11MLEVF0499AJZZ V Pinch Drive Lever Ass’yAG
12MLEVF0500GEZZ J Pinch Roller Lever Ass’yAW
15MLEVF0496AJZZ V Tension Arm Ass’yAK
16LANGF9620AJFW V A/C Head PlateAG
17MLEVP0271AJZZ V Sifter Drive LeverAE
18MLEVP0272AJZZ V Pinch Double Action Lever AD
19MLEVP0301AJZZ V Reverse Guide LeverAL
Ass’y
20MLEVP0275AJZZ V Reverse Drive LeverAD
21MLEVP0292AJZZ V Slow Brake LeverAE
22MLEVP0336AJZZ V Open LeverAD
23MLEVP0293AJZZ V Clutch LeverAE
24MLEVP0324AJZZ V Sup Main Brake Ass’yAF
25MLEVP0325AJZZ V Take-Up Main BrakeAF
Ass’y
26CLEVP0287GEZZ V Auto Head Cleaner Ass’yAF
27MSLiP0010AJZZV SifterAH
29MSPRD0175AJFJ V Reverse Guide Spring 2AE
30MSPRT0402AJFJ V Loading Double ActionAE
Spring
31MSPRT0403AJFJ V Pinch Double ActionAD
Spring
32MSPRC0213AJFJ V Earth SpringAC
33MSPRT0416AJFJ V Tension SpringAD
34NBLTK0067AJ00V Reel BeltAE
35NDAiV1078AJ00V Reel DiskAE
36NGERH1293AJZZ V Loading Connect GearAD
37NGERH1295AJ00 V Master CamAE
38NGERH1294AJZZ V Casecon Drive GearAD
SCREW, NUTS AND WASHERS
201XBPSD26P08000 V Screw 2.6P+8S A/C Head AA
202LX-HZ3082GEZZJ A/C Head ScrewAD
203XJPSD26P06000V Screw, C2.6P+6SAA
300CHLDX3081TEV2 V Cassette HousingAX
301LANGF9592AJFW V Upper PlateAL
302LHLDX1028AJ00V Frame (L)AH
303LHLDX1032AJ00V Frame (R)AH
304LHLDX1030AJZZ V Holder (L)AE
305LHLDX1031AJZZ V Holder (R)AE
306MLEVF0469AJFW V Proof Lever (R)AE
307MLEVP0281AJ00 V Door Open LeverAD
308MSLiF0077AJFW V SliderAE
309MSPRD0151AJFJ V Proof Lever (R) SpringAB
310MSPRD0166AJFJ V Drive Gear (R) SpringAE
311MSPRP0175AJFJ V Cassette SpringAE
312MSPRT0381AJFJ V Double Action SpringAC
313NGERH1278AJZZ V Drive Gear LAE
314NGERH1309AJZZ V Drive Gear RAE
315NGERR1008AJ00 V Double Action Rack GearAE
316NGERR3005AJFW V Drive Angle GearAG
317NSFTD0041AJFD V Main ShaftAH
1CCABA2514WEV7 R Front Cabinet Ass'yBC
1CCABA2514WEV8 R Front Cabinet Ass'yBC
1CCABA2514WEV9 R Front Cabinet Ass'yBC
1-1
Not Available
1-2GCOVA0096PESA R LED DecorationAD
1-3HBDGB0018PESA R "SHARP" BadgeAE
1-4HDECQ0214PESA R Cassette Flap-DoorAF
1-4HDECQ0214PESB R Cassette Flap-DoorAF
1-5HDECQ0143PEKA R Punching PlateAD
1-5HDECQ0143PEKB R Punching PlateAD
1-6JBTN-0317PEKAR Button, PowerAC
1-6JBTN-0317PEKBR Button, Power
1-7JBTN-0316PESAR
1-7JBTN-0316PESBR
1-8LHLDZ0040PEZZ R Holder, x2AC
1-9XTASD30P12000J Screw, x5AA
1-10MSPRC0005PEFW R Spring, for Power ButtonAB
1-11MSPRD0123AJFJ J Spring, for VCR Flap-Door AC
1-12PSPAH0012PE00 R Spacer, x1AA
1-13TCAUS0010PEZZ R Caution CardAB
1-13TCAUS0004PEZZ R Caution CardAD
1-14TCAUS0013PEZZ R Caution CardAB
1-15QCNW-2206PEZZ R Connecting WireAD
1-16VSP9050PB31WA J Speaker, x1AH
1-17LX-TZ0012PEFDR Screw, x2AC
2GCABB2349PEKA R Rear Cabinet (13VT-R100) BB
2GCABB2349PEKB R Rear Cabinet (13VT-R150) BB
2GCABB2351PEKA R Rear Cabinet (13VT-CR10) BB
å 3QACCD3064CESA J AC CordAM
å 3QACCD3060CESB J AC CordAR
6PSLDM0250PEFW R Shield Cover (Top)AD
7PSLDM0334PEFW R Shield (Top)AH
8PSLDM0249PEFW R Shield (Bottom)AG
9LANGT0038PEFW R AngleAC
10QEARC1435PEZZ R Wire, Grounding StrapAE
11LCHSM0080PEKZ R Main Chassis FrameAP
15PSLDM0253PEFW R Shield AngleAC
16LHLDW0003PEKZ R Degaussing Coil Holder, x4 AB
17LHLDW1047PEZZ R Wire Holder, x2AB
19LHLDW1065PEKZ R Wire Holder, x2AD
20PSPAG0004PEZZ R Wedge (Gum), x3AB
21TLABM1536PEZZ R Model LabelAB
21TLABM1268PEZZ R Model LabelAD
22LX-TZ0013PEFDR Screw, for CRT, x4AD
'å30VB34KPU02X/~S R Picture TubeBZ
'å31RCiLH0141PEN2R Deflection Yoke (DY601)AZ
å 32RCiLG0098PEZZR Degaussing CoilAG
33PMAGF3045CEZZ J Purity MagnetAG
34QSW-F0042AJZZJ Rec Tip Switch (S7701)AG
(13VT-R100)
(13VT-R150)
(13VT-CR10)
– Front Cabinet—
(13VT-R100/CR10)
(13VT-R150)
(13VT-R100/CR10)
(13VT-R150)
(13VT-R100/CR10)
Button Ass'y, TV/VCR Control
(13VT-R100/CR10)
Button Ass'y, TV/VCR Control
(13VT-R150)
(13VT-R100/R150)
(13VT-CR10)
(13VT-CR10)
(13VT-R100/CR10)
(13VT-R150)
(13VT-R100/R150)
(13VT-CR10)
(13VT-R150)
AC
AG
AG
36QCNW-2418PEZZ R Connecting Wire (GC)AE
38PSLDM0335PEFW R ShieldAC
39LHLDZ1962AJ00J Start, End Sensor HolderAD
40LHLDZ0063PEZZ R H.V.Wire HolderAD
41LHLDW1075PEKZ R Wire Holder, x1AC
42LHLDK0016PEZZ R AC Cord HolderAC
43LHLDK0011PEZZ R AC Cord HolderAE
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
D SEM P SREC TQ1160-S
Jun. 2001 Printed in Japan
MI. KG
SHARP CORPORATION
AV Systems Group
Quality & Reliability Control Center
Yaita, Tochigi 329-2193, Japan
104
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