Sony PVM-20M2U, PVM-20M4U, PVM-20M2E, PVM-20M4E, PVM-20M4A Service Manual
SONY-
SP0402
SERVICE
MANUAL
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PVM-20M2U
PVM-20M4U
PVM-20M2E
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PVM-20M4E Canadian
SCC-G61H-A
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PVM-20M4A
Canadian
SCC-G61F-A
AEP
SCC-G62GA
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Trinitron
PVM-20M4U/20M4E
AEP
SCC-G62E-A
Australian SCC-N17C·A
Trinitron
PVM-20M2U/20M2E
TRINITRON®
COLOR
VIDEO
MONITOR
SONY.
SPECIFICATIONS
Video signal
For PVM-14M4U/14M4E/20M4U/20M4E:
Color system
Resolution
Aperture correction
Frequency response
LINE
RGB
NTSC, PAL, SECAM,
NTSC4.43
800TV
lines
OdBto+6dB
10 MHz ± 3 dB (Y signal)
10MHz±3
dB
Synchronization AFC time constant
1.0 msec.
For PVM-14M2U/14M2E/20M2U/20M2E:
Color system
Resolution
Aperture correction
Frequency response
LINE
RGB
Synchronization
NTSC, PAL, SECAM,
NTSC4.43
600TV
lines
OdBto+6dB
10 MHz ± 3 dB (Y signal)
lOMHz± 3 dB
AFC time constant 1.0 msec.
Picture performance
For PVM-14M4U/14M4E/14M2U/14M2E:
Normal scan
Under scan
H.
linearity
V. linearity
Convergence
7 % over scan
of
CRT effective screen
area
5 % underscan
of
CRT effective screen
area
Less than
4.0 % (typical)
Less than
4.0 % (typical)
Central
area:
0.4 mm (typical)
Peripheral area: 0.5 mm (typical)
Raster size stability
H:
1.0%, V: 1.5%
High voltage regulation
3.5%
Color temperature 065/D93, selectable
USER (3,200K-10,000K, factory
setting is
065)
For PVM-20M4U/20M4E:
Normal scan
Under scan
H.
linearity
V. linearity
Convergence
7 % over scan
of
CRT effective screen
area
5 % underscan
of
CRT effective screen
area
Less than
5.0 % (typical)
Less than
5.0%
(typical)
Central
area:
0.5 mm (typical)
Peripheral area: 0.7 mm (typical)
Raster size stability
H:
1.0%, V: 1.5%
High voltage regulation
4.0%
Color temperature 065/D93, selectable
USER (3,200K-10,000K, factory
setting is
065)
For
PVM-20M2U/20M2E
Normal scan
Under scan
H. linearity
V. linearity
Convergence
7 % over scan
of
CRT effective screen
area
5 % underscan
of
CRT effective screen
area
Less than
5.0 % (typical)
Less than
5.0 % (typical)
Central area:
0.6 mm (typical)
Peripheral area: 1.0 mm (typical)
Raster size stability
H:
1.0%, V: 1.5%
High voltage regulation
4.0%
Color temperature 065/D93, selectable
Inputs
USER (3,200K-10,000K, factory
setting is
065)
For PVM-14M4U/14M4E/20M4U/20M4E:
LINE AlB
VIDEO IN BNC connector (x2}, 1 Vp-p ±6 dB,
sync negative
AUDIO IN
Automatic
75
ohms termination
Phono jack (x2),
-5
dBu
3
>,
more than
47 kilo-ohms
LINEC
Y/C IN 4-pin mini-DIN
(xl)
See the pin assignment on page 19.
AUDIO IN Phono jack (XI},
-5
dBu
3
>,
more than
47 kilo-ohms
ROB/COMPONENT
RIR-
Y,G/Y,B/B-
YIN:
BNC connector (x3)
R, G, B channels:
0.7 Vp-p, ±6
dB
Sync on green: 0.3 Vp-p, negative
R-
Y,
B-Y channels:
0.
7 Vp-p, ±6
dB
Y channel: 0.7 Vp-p, ±6
dB
(Standard color bar signal
of
75%
chrominance)
Automatic 75 ohms termination
AUDIO IN Phono
jack
(xl),
-5
dBua>,
more than
47 kilo-ohms
EXT
SYNC IN
REMOTE
BNC connector
(xl)
4 Vp-p, ±6 dB, sync negative
20-pin connector
(xl)
See the pin assignment on page
19.
a) 0 dBu = 0.775 Vr.m.s.
-2-
For
PVM-14M2U/14M2E/20M2U/20M2E:
LINE
AlB
VIDEO IN
AUDIO IN
LINEC
BNC connector (X2), 1 Vp-p
± 6dB, sync negative
Automatic
75
ohms termination
Phono
jack
(x2),
-5
dBua>,
more than
47 kilo-ohms
Y/C
IN
4-pin mini-DIN (x1)
See the pin assignment
on
page 19.
AUDIO IN
Phono
jack
(xl),
-5
dBua>,
more than
4 7 kilo-ohms
ROB/COMPONENT
R/R-Y,G/Y,B/B-Y IN: BNC connector (x3)
R, G, B channels: 0.7
Vp-p ± 6dB
Sync on green: 0.3 Vp-p negative
R-Y, B-Y channel: 0.7 Vp-p
± 6dB
Y channel: 0.7
Vp-p ± 6dB
(Standard color bar signal
of
75%
chrominance)
Automatic 75 ohms termination
AUDIO IN Phono
jack
(x1),
-5
dBua>,
more than
47 kilo-ohms
EXT
SYNC IN
REMOTE
BNC connector (x1)
4 Vp-p, ±6 dB, sync negative
20-pin connector (x1)
See the pin assignment
on
page 19.
a)
0 dBu = 0.775 Vr.m.s.
Outputs (common
to
all models)
LINE AlB
VIDEO OUT
AUDIO OUT
LINEC
Y/COUT
BNC connector (x2) loop-through,
Automatic 75 ohms termination
Phono
jack
(x2) loop-through
4-pin mini-DIN (x1) loop-through,
Automatic 75 ohms termination
AUDIO
OUT Phono
jack
(xl)
loop-through
ROB/COMPONENT
R/R-Y,G/Y,B/B-Y OUT: BNC connector (x3)
loop-through
Automatic 75 ohms termination
AUDIO
OUT Phono
jack
(x1) loop-through
EXT
SYNC OUT BNC connector (x1)
Automatic 75 ohms termination
Speaker output Output level: 0.8 W
General
For
PVM-14M4U:
CRT
SMPTE-C phosphor
Power consumption
90
Wh
(with SDI: 99 Wh)
Power requirements 120 V AC, 50/60Hz
Operating temperature
0 to +35°C (32 to 95°F)
Storage temperature
-10
to +40°C (14 to104°F)
Operating humidity 35 to 85% (no condensation)
Storage humidity
0 to 90%
Dimensions (w/h/d) Approx. 346 x 340 x 431
mm
(13%x
13Y2 x 17
inches)
not incl. projecting parts and controls
Mass Approx. 16.7kg
(36lb
13
oz)
Accessory supplied AC power cord
(1)
AC plug holder (1)
Tally label (1)
Cable with a 20-pin connector
(1)
For
PVM-14M4E:
CRT EBU phosphor
Power consumption
90
Wh
(with SDI: 99 Wh)
Power requirements 100 to 240 V AC, 50/60Hz
Operating temperature
0 to +35°C (32 to 95°F)
Storage temperature
-10
to +40°C (14 to104°F)
Operating humidity 35 to 85% (no condensation)
Storage humidity
0 to 90%
Dimensions (w/h/d) Approx. 346 x 340 x 431 mm
(13%x
13\12 x 17
inches)
not incl. projecting parts and controls
Mass Approx. 16.7kg
(36lb
13
oz)
Accessory supplied AC power cord (1)
AC plug holder (1)
Tally label (1)
Cable with a 20-pin connector
(l)
For
PVM-14M2U:
CRT
P-22 phosphor
Power consumption
90
Wh
(with SDI: 99 Wh)
Power requirements 120 V AC, 50/60Hz
Operating temperature
0 to +35°C (32 to 95°F)
Storage temperature
-10
to +40°C (14 to104°F)
Operating humidity 35 to 85% (no condensation)
Storage humidity
0 to 90%
Dimensions (w/h/d) Approx. 346 x 340 x 431
mm
(13%x
13\12 x 17
inches)
not incl. projecting parts and controls
Mass Approx. 16.7kg
(36lb
13
oz)
Accessory supplied AC power cord (1)
AC plug holder (1)
Tally label
(1)
Cable with a 20-pin connector (1)
-3-
For
PVM-14M2E:
CRT P-22 phosphor
Power consumption 90 Wh (with SDI: 99 Wh)
Power requirements 100 to 240 V AC, 50/60Hz
Operating temperature
0 to +35°C (32 to 95°F)
Storage
temperature
-10
to
+40°C (14 to 1 04 °F)
Operating humidity 35
to
85% (no condensation)
Storage humidity 0 to 90%
Dimensions (w/h/d) Approx. 346 x 340 x
431
mm
(l35Jsx
13Yz x 17
inches)
not incl. projecting parts and controls
Mass Approx. 16.7kg
(36lb
l3
oz)
Accessory supplied AC power cord (1)
AC plug holder (1)
Tally label (1)
Cable with a
20-pin connector (1)
For
PVM-20M4U:
CRT SMPTE-C phosphor
Power consumption
125
Wh (with SDI:
135
Wh)
Power requirements 120 V AC, 50/60Hz
Operating temperature
0
to
+35°C (32 to 95°F)
Storage
temperature
-lO
to
+40°C (
14
to 104 °F)
Operating humidity 35 to 85% (no condensation)
Storage humidity 0 to 90%
Dimensions (w/h/d) Approx. 450 x 458 x 503 mm
(17% x
181A! x 197As
inches)
not incl. projecting parts and controls
Mass Approx.
30.0 kg (66 lb 2 oz)
Accessory supplied
AC
power cord
(1)
AC
plug holder (1)
Tally label (1)
Cable with a
20-pin connector
(l)
For
PVM-20M4E:
CRT EBU phosphor
Power consumption 130
Wh
(with SDI: 140 Wh)
Power requirements 100 to 240 V AC, 50/60Hz
Operating temperature
0
to
+35°C (32 to 95°F)
Storage
temperature
-lO
to
+40°C (14 to104°F)
Operating
humidity
35
to 85% (no condensation)
Storage humidity 0 to 90%
Dimensions (w/h/d) Approx. 450 x 458 x 503 mm
(17% x
18Ys x 197As
inches)
not incl. projecting parts and controls
Mass Approx.
30.0
kg
(66 lb 2 oz)
Accessory supplied
AC
power cord
(1)
AC
plug holder (
1)
Tally label (1)
Cable with a
20-pin connector (1)
-4-
For
PVM-20M2U:
CRT P-22 phosphor
Power consumption
115
Wh (with SDI:
125
Wh)
Power requirements 120 V AC, 50/60Hz
Operating temperature
0
to
+35°C (32 to 95°F)
Storage
temperature
-lO
to +40°C (14 to104°F)
Operating humidity 35 to
85%
(no condensation)
Storage humidity 0
to
90%
Dimensions (w/h/d) Approx. 450 x 458 x 503 mm
(17%x181A!x
197Asinches)
not incl. projecting parts and controls
Mass Approx.
30.0
kg
(66 lb 2 oz)
Accessory supplied
AC
power cord (
1)
AC
plug holder (1)
Tally label (1)
Cable with a 20-pin connector (1)
For
PVM-20M2E:
CRT P-22 phosphor
Power consumption 120
Wh
(with SDI: 130 Wh)
Power requirements 100
to
240 V AC, 50/60Hz
Operating temperature
0
to
+35°C (32 to 95°F)
Storage
temperature
-10
to
+40°C (14 tol04°F)
Operating humidity 35
to
85% (no condensation)
Storage humidity 0 to 90%
Dimensions (w/h/d) Approx. 450 x 458 x 503 mm
(17% x181As x 197A!
inches)
not incl. projecting parts and controls
Mass Approx.
30.0
kg
(66 lb 2 oz)
Accessory supplied
AC
power cord
(I)
AC plug holder (1)
Tally label (1)
Cable with a
20-pin connector (1)
Design and specifications are subject to change
without notice.
Pin assignment
Y/C IN connector (4-pin mini-DIN)
Y-input
1
Vp-p, sync negative,
75 ohms
2
CHROMA
300m Vp-p,
burst
subcarrier-input
Delay time between Y
and C: within
0 ± 1 00
nsec., 75 ohms
GND for GND
4
GNDfor
GND
CHROMA-input
REMOTE connector (20-pin)
4
EXT SYNC Yellow
5
DEGAUSS
Green
6 R
chON/OFF*
Blue
7
TALLY Purple
10
11
GND
12
GND
Spiral Grey
Spiral Pink
20
16:9 Spiral Light Blue
(*
For digital audio control)
How to connect a remote control unit
Connect No.17 pin to one
of
the GND pins
(No.9-
12.
and 15), then connect pins for the functions you want
to use to other GND pins
(No.9-
12, and 15).
How to light the tally lamp
Connect No.7 pin to one
of
the GND pins (No.9
-12,
and 15).
-5-
SAFETY CHECK-OUT
(US Model only)
After
correcting
the
original
service
problem,
perform the following safety checks before releasing
the set to the customer:
l.
Check the area of your repair for unsoldered or
poorly-soldered connections.
Check
the entire
board surface
for
solder splashes and bridges.
2.
Check the interboard wiring to ensure that no
wires
are
"pinched"
or
contact
high-wattage
resistors.
3.
Check that all
control
knobs, shields, covers,
ground
straps,
and
mounting
hardware
have
been replaced. Be absolutely
certain
that you
have replaced
all
the
insulators.
4.
Look for unauthorized replacement parts, particularly transistors. that were installed during
a previous repair.
Point
them
out
to the
cus-
tomer
and
recommend their replacement.
5.
Look for parts which, though functioning, show
obvious signs of deterioration. Point them
out
to the customer and recommend their replacement.
6.
Check the line cords for cracks and abrasion.
Recommend the replacement
of
any such line
cord
to
the customer.
7.
Check the B+ and
HV
to see
if
they are at the
values specified. Make sure
your
instruments
are
accurate;
be
suspicious of your
HV
meter
if
sets
always
have
low
HV.
8.
Check
the metal
trim,
metallized
knobs,
screws,
and all
other
exposed
metal
parts
for
AC
leakage.
Check leakage
as
described below.
To Exposed Metal
Parts on
Set
AC
voltmeter
(0.75V)
-=
Earth Ground
Fig.
A.
Using
an
AC voltmeter to check
AC
leakage.
LEAKAGE
TEST
The
AC
leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not
exceed
0.5mA
(500
microampers).
Leakage
current
can be
measured
by any one
of
three
methods.
l.
A
commercial
leakage
tester.
such as the
Simpson
229
or
RCA WT-540A.
Follow
the
manufactures' instructions
to
use these instru-
ments.
2.
A battery-operated
AC
milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
3.
Measuring the voltage drop across a resistor by
means
of
a VOM or battery-operated
AC
volt-
meter.
The
"limit"
indication
is
0.75V.
so
analog
meters
must
have
an
accurate
low-
voltage
scale.
The
Simpson
250 and
Sanwa
SH-63Trd are examples
of
a passive VOM that
is suitable. Nearly all battery operated digital
multimeters
that
have
a 2V
AC
range are
suitable. (See Fig.
A)
HOW TO FIND A GOOD EARTH GROUND
A cold-water pipe is guaranteed earth ground; the
cover-plate retaining screw
on
most
AC
outlet boxes
is
also at earth ground.
If
the retaining screw is
to
be
used as your earth-ground, verify that it is at ground
by measuring the resistance between it and a coldwater pipe with
an
ohmmeter. The reading should be
zero ohms.
If a cold-water
pipe
is not
accessible,
connect a 60-100
watts
trouble
light
(not
a neon
lamp) between the hot side
of
the receptacle and the
retaining screw. Try both slots,
if
necessary,
to
locate
the
hot
side
of
the line. the
lamp
should
light
at
normal brilliance
if
the screw is at ground potential.
(Sec Fig.
B)
Trouble Light
Cold-water Pipe
Fig.
B.
Checking for earth ground.
-6-
TABLE OF CONTENTS
Section
Title
1.
GENERAL
Features............................................................................... 8
Location
and
Function of Parts
and
Controls...................... 9
Using On-screen Menus ......................................................
11
Connections.........................................................................
13
2.
DISASSEMBLY
2-l.
Top
Cover
and
Rear Cover Removal ......................
14
2-2.
TeTP,Jinal
Board Removal ........................................
14
2-3. J
and
H Boards Removal.........................................
14
2-4. Picture Tube Removal.............................................
14
2-5. Service Position.......................................................
15
3. SET-UP ADJUSTMENTS
3-l. Preparations (1) ...................... ............ ............
..
.......
16
3-2. Preparations (2) Initialization..................................
19
3-3. Writing Model Data ................................................
19
3-4. Picture Output ......................................................... 20
3-5.
Landing Adjustment................................................ 20
3-6. Convergence Adjustment
(1)
..................................
21
3-7. Deflection Yoke Neck Rotation Adjustment ..........
22
3-8.
Convergence Adjustment
(2)
..................................
22
3-9.
02
Adjustment ........................................................
23
3-10.
White Balance Adjustment .....................................
23
3-11. Blue-Only White Balance Adjustment....................
24
3-12.
Sub
Brt Adjustment .................................................
24
3-13. Focus Adjustment....................................................
24
4. SAFETY RELATED ADJUSTMENT .................
25
(CAUTION)
SHORT
CIRCUIT THE ANODE OF
THE
PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD,
OR
CARBON
PAINTED
ON
THE
CRT, AFTER REMOVING THE ANODE.
WARNING!!
AN
ISOLATION TRANSFORMER SHOULD BE USED DURING ANY
SERVICE
TO
AVOID POSSIBLE SHOCK HAZARD, BECAUSE OF
LIVE CHASSIS.
THE
CHASSIS OF THIS RECEIVER
IS
DIRECTLY CONNECTED TO
THE
AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED
BY SHADING AND MARK &
ON
THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS
LIST
ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE
PART
NUMBERS
APPEAR AS SHOWN
IN
THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED
BY
SONY. CIRCUIT ADJUSTMENTS
THAT
ARE
CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL
COMPONENTS
ARE REPLACED
OR
IMPROPER OPERATION IS
SUSPECTED.
Section
Title
5. CIRCUIT ADJUSTMENTS
5-l.
A Board Adjustments ..............................................
27
6. DIAGRAMS
6-1. Block Diagrams (1) ................................................. 39
Block Diagrams
(2)
................................................. 44
6-2. Frame Schematic Diagram ...................................... 49
6-3. Circuit Boards Location.......................................... 52
6-4. Printed Wiring Boards
and
Schematic Diagrams.... 52
• A Board
(113)
........................................................ 59
• A Board
(213)
........................................................ 66
• A Board (3/3) ........................................................ 69
• Q Board ................................................................. 74
•G
Board ................................................................. 76
• J Board .................................................................. 76
•XBoard
................................................................. 76
• H Board .................................................................
78
• S Board .................................................................
78
• C Board .................................................................
83
6-5. Semiconductors .......................................................
87
7. EXPLODED VIEWS
7-1. Chassis ..................................................................... 89
7-2. Picture Tube ............................................................
90
8.
ELECTRICAL PARTS LIST..............................
91
(ATTENTION)
APRES AVOIR
DECONNECTE
LE
CAP DE L'ANODE, COURT-
CIRCUITER
L'ANODE
DU
TUBE
CATHODIQUE
ET
CELUI
DE
L'ANODE DU CAP AU CHASSIS METALLIQUE
DE
L'APPAREIL,
OU
AU COUCHE
DE
CARBONE PEINTE SUR LE TUBE CATHODIQUE
OU
AU BLINDAGE DU TUBE CATHODIQUE.
ATTENTION!!
AFIN D'EVITER TOUT RESQUE D'ELECTROCUTION PROVENANT
D'UN
CHASSIS
SOUS
TENSION,
UN
TRANSFORMATEUR
D'ISOLEMENT DOlT ETRE
UTILIS~
LORS DE TOUT
D~PANNAGE.
LE CHASSIS DE CE
R~CEPTEUR
EST DIRECTEMENT RACCORDE
A L'ALIMENTATION SECTEUR.
ATTENTION
AUX COMPOSANTS RELATIFS A LA
S~CURIT~!!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET PAR UNE
MARQUE
& SUR
LES
SCH~MAS
DE
PRINCIPE,
LES VUES
EXPLOS~ES
ET LES LISTES DE PIECES SONT D'UNE IMPORTANCE
CRITIQUE POUR
LA
SECURIT~
DU
FONCTIONNEMENT.
NE
LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT
LE
NUM~RO
DE
PI~CE
EST
INDIQU~
DANS LE
PR~SENT
MANUEL OU
DANS DES
SUPPL~MENTS
PUBLI~S
PAR SONY. LES
R~GLAGES
DE CIRCUIT
DONT
L'IMPORTANCE
EST
CRITIQUE POUR
LA
S~CURIT~
DU FONCTIONNEMENT SONT IDENTIFIES
DANS
LE
PR~SENT
MANUEL
SUIVRE CES
PROC~DURES
LORS
DE
CHAQUE
REMPLACEMENT DE
COMPOSANTS CRITIQUES, OU LORSQU'UN
MAUVAIS FONCTIONNEMENT EST
SUSPECT~.
-7-
I
(X)
I
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts from
the
Operating
Instruction
Manual.
The page
numbers
of
the
Operating Instruction Manual remain as in the manual.
Features
Picture
HR (High
Resolution)
Trinitron
•1
picture
tube
for
PVM-14M4U/14M4E/20M4U/20M4E
HR Trinitron tube provides a high resolution picture.
Horizontal resolution is more than
800 TV lines at the
center
of
the picture.
Trinitron'l
picture
tube
for
PVM-14M2U/14M2E/20M2U/20M2E
Trinitron tube provides a high resolution picture.
Horizontal resolution is more than
600
TV
lines at the
center
of
the picture.
Comb
filter
When
NTSC video signals are received, a comb filter
activates to make more accurate
Y /C separation. This
contributes to less
of
a decrease
in
resolution, cross
color and cross luminance phenomena.
Beam
current
feedback
circuit
The built-in beam current feedback circuit assures
stable white balance.
Four
color
system
available
The monitor can display NTSC, PAL, SECAM and
NTSCw
21
signals. The appropriate color system is
selected automatically.
Blue
only
mode
In the blue only mode, an apparent monochrome
display
is
obtained with all three cathodes driven with
a blue signal. This facilitates color saturation and
phase adjustments and observation
of
VCR noise.
I) "Trinilron"
is a regisrered
crademark
of
Sony
Corporalion.
Input
Analog
RGB!component
input
connectors
Analog RGB
or
component (Y, R-Y and B-Y) signals
from video equipment can
be
input through lhese
connectors.
Y/C
input
connectors
The video signal, split into lhe chrominance signal
(C)
and the luminance signal (Y). can be input through this
connector, eliminating the interference between the
two signals, which tends to occur in a composite video
signal, ensuring video quality.
External
sync
input
When the EXT SYNC selector is in the on position,
the monitor can be operated on lhe sync signal
supplied from an external sync generalor.
Automatic
termination
(connector
with
.A./Ir
mark
only)
The input conneclor is terminaced at 75 ohms inside
when no cable is connected
10
rhe
loop-through output
connector. When a cable is connected to an output
connector, the 75-ohm termination
is
automatically
released.
2) The
NTSCuJ
system refers 10 an NTSC color system in which rhe subcarrier freQuency
is
modified
to
4.43MHz. When
\\\
\'\'D~
\t\.\l\1\t.\\
~1\\t\l
\}l\l%!0ID
1~
\}\ayen
\lack
with a Trident
(PAUSECAMINTSC..,)
VTR.
the
NTSC..,
signal
is
output.
4
Functions
Underscan
mode
The signal normally scanned outside
of
the screen can
be monitored in the underscan mode.
..
When the monitor is in the underscan mode, the dark
RGB scanning lines may appear on the top edge
of
lhe
screen. These are caused by an internal test signal,
: rather than the input signal.
Horizontal/vertical
delay
mode
The horizontal and venical sync signals can be
checked simultaneously in the
HIV delay mode.
Auto/manual
degaussing
Degaussing
of
the screen can be performed
automatically when the power is turned on,
or
manually by pressing the DEGAUSS button.
On-screen
menus
You can set color temperature, CHROMA SET UP,
and
ocher settings by using the on-screen menus.
Five
menu
languages
You can select the menu language from among five
languages on the menu.
EIA
standard
19-inch
rack
mounting
By
using an MB-502B mounting bracket (for a 14-inch
monitor, not supplied)
or
SLR-103A slide rail (for a
20-inch monitor, not supplied), the monitor can be
mounted in an EIA standard 19-inch rack.
For details on mounting, refer
to
the instruction manuals
supplied
wilh
lhe
mounling
brackel
kil
or slide
rail
kil.
SDI
(Serial
Digital
Interface)
Kit
By using the following optional SDI Kits, the monitor
can display
SMPTE 259M 4:2:2 serial digiral signal
from a digital
VCR. (ex. Sony 4:2:2 VCR)
- BKM-IOlC: Component
SDI Kit (for video)
-
BKM-102: Component SDI Kit (for audio)
...
When the serial number
of
the BKM-IOlC you want to
connect is less than
2,010,000, an optional connecting
harness
(pan
no. 1-900-230-35) will be required.
Serial
Remote
Interface
Kit
By using the oplional
BKM-103 Serial Remote
Interface Kit, the monitor can be controlled from
personal computers via the
RS-422A serial interface.
5
<0
I
Location
and
Function
of Parts and
Controls
OTally
lamp
Lights
up
when the video camera connected to this
monitor is selected, indicating that the picture is being
recorded.
For details
on
how
to light
the
tally lamp, see page
19.
8 POWER switch and indicator
Depress to tum
on
the monitor. The indicator will light
green.
8 REMOTE indicator
Lights
up
when you select
ON
on the
USER
PRESET
menu (see page 13),
or
when you connect a supplied
cable to the REMOTE connector.
The
controls on the
front panel
do
not work when this indicator lights up.
For details on
how
to
connect the cable, see page 19.
0
VOLUME
control
1\\m
\\\\~
t()l\\m\
c\oc'lwi~
or
counterclockwise
to
obtain the desired volume.
6
8 CONTRAST control
Tum
this control clockwise
to
make the contrast higher
or
counterclockwise to make it lower.
0 PHASE control
This
control is effective only for the NTSC and
NTSC
•.
o color systems.
Tum
it clockwise
to
make the
skin tones greenish or counterclockwise to make them
purplish.
0 CHROMA control
Tum
this control clockwise
to
increase the color
intensity or counterclockwise to decrease it.
8 BRIGHT (brightness) control
Tum
this control clockwise to increase the brightness
or
counterclockwise to decrease it.
G)
APERTURE
control
Tum
this control clockwise to increase sharpness
or
counterclockwise
to
decrease sharpness.
IIIII
The
PHASE
(0).
CHROMA
(f))
and
APERTURE
(Ci))
controls have no effect on the pictures
of
RGB
signals.
G)
MENU (EXIT) button
Press this button to display the main menu.
When a menu
is
on the display, you can return to the
previous menu by pressing this button.
G)
ENTER (SELECT) button
Press the button to confirm a selected item on the
menu.
48
t (+)/
..
(-)
buttons
Press the buttons to move the
cursor(.,.)
or
adjust
selected item on the menu.
C816:9 selector
Press this selector (light on)
to
monitor the signals
of
16:9 picture.
4D
HN
DELAY selector
Press this selector (light on)
to
observe the horizontal
and vertical sync signals at the same time.
The
horizontal sync signal is displayed in the left
quarter
of
the screen; the vertical sync signal is
displayed near the center
of
the screen.
49
UNDER SCAN selector
Press this selector (light on) for underscanning.
The
display size is reduced by approximately 5% so
that four comers
of
the raster are visible.
4D
BLUE ONLY selector
RESET button
• As the
BLUE
ONLY selector, press this selector
(light on) to eliminate the red and green signals.
Only blue signal is displayed as an apparent
monochrome picture on the screen.
This
facilitates
"chroma" and "phase" adjustments and observation
of
VCR noise.
("Phase" adjustment is effective only for the NTSC
signals.)
• As the RESET button, you can reset the menu
settings by pressing this button when a menu is on
the display.
G)
DEGAUSS button
Press this button momentarily.
The
screen will be
demagnetized. Wait for I
0 minutes or more before
using this button again.
CD
EXT SYNC (external sync) selector
• Set this selector to the
off
position (light off) to
operate the monitor on the sync signal from the
displayed video signal.
•
Set
this selector
to
the on position (light on) to
operate the monitor on an external sync signal
through the
EXT
SYNC connector.
G>
LINEIRGB input selector
Press this selector to select the input
to
be monitored.
•
Set
this selector
to
the
off
position (light off)
to
monitor the signal through the LINE A, LINE B
or
LINE
C connectors.
•
Set
this selector
to
the on position (light on) to
monitor the signal through the
ROB/COMPONENT
connectors.
G)
C/SDI selector
• When the LINE/ROB input selector is set to the
LINE
position (light off), press this selector (light
on)
to
monitor the signal through the
LINE
C
connectors.
• When the LINE/ROB input selector is set to the
RGB position (light on), press this selector (light on)
to monitor the
SOl
signal (optional kits are required).
Gl
B/COMPONENT selector
• When the LINE/ROB input selector is set to the
LINE
position (light off), press this selector (light
on)
to
monitor the signal through the LINE B
connectors.
• When the LINEIRGB input selector is set
to
the
ROB position (light on). press this selector (light on)
to monitor the component signal through the
ROB/
COMPONENT
connectors.
$ A/RGB selector
• When the LINEIRGB input selector is set to the
LINE position (light off), press this selector (light
on)
to
monitor the signal through the LINE A
connectors.
•
When
the LINEIRGB input selector is set to the
RGB position (light on), press this selector (light on)
to monitor the
ROB signal through the ROB/
COMPONENT
connectors.
7
.....
0
I
Location
and
Function
of
Parts
and
Controls
t;·Rear·F'iih~J
;£~):,;;~~';,~:';,;;':,>i?'"cij',lii,)'L:~;~
':.\
1
;~~~('
'~~~~
·'
..
,:'~;,:::
..
'~
liNE
A
VIDEO
IN
OUT
liNE
8
VIDEO
IN
OUT
~~~~~
0
AC
IN
socket
Connect the supplied
AC
power
cord
to this
socket
and
to a
wall outlet.
8 LINE
A,
LINE B connectors
Two
groups
(A
and
B)
of
line input connectors for the
composite
video
and
audio signals and their loop-
through
output
connectors.
To
monitor
the input signal through these connectors,
set the
LINEIRGB selector
to
the
LINE
position (light
oft)
and
press the A/RGB
or
B/COMPONENT
selector
(light on).
VIDEO
IN
(BNC)
Connect
to the video
output
of
video
equipment,
such
as a VCR
or a color
video camera.
For
a loop-through connection,
connect
to
the video
output
of
another
monitor.
VIDEO
OUT
(BNC)
Loop-through
output
of
the
VIDEO
IN
connector.
Connect to the video input
of a VCR
or
another
monitor.
When
the cable is connected to this connector, the
75-ohm
tennination
of
the input is automatically
released,
and
the signal input to the
VIDEO
IN
connector
is
output
from this connector.
Q
(The
-'\1\r
mark indicates automalic termination.)
AUDIO
IN
(phono
jack)
Connect to the
audio
output
of a VCR
or
to a
microphone
via a suitable
microphone
amplifier.
For
a loop-through connection, connect to the audio
output
of
another
monitor.
AUDIO
OUT
(phono
jack)
Loop-through
output
of
the
AUDIO
IN connector.
Connect
to the audio input
of a VCR
or
another
monitor.
E) LINE C connectors
Y/C
IN
(4-pin
mini-DIN)
Connect
to the Y
/C
separate
output
of
a video
camera,
VCR
or
other
video equipment.
For
a loop-through connection, connect to the Y
/C
separate
output
of a VCR
or
another
monitor.
Y/C
OUT
(4-pin
mini-DIN)
Loop-through
output
of
the Y
/C
IN connector.
Connect
to the
Y/C
separate input
of a VCR
or
another
monitor.
When
the cable is
connected
to this connector, the
75-
ohm
tennination
of
the input is automatically released,
and
the signal input
to
the Y IC IN
connector
is
output
from
this connector.
AUDIO
IN
(phono
jack)
Connect
to the audio
output
of a VCR
or a microphone
(via a suitable microphone amplifier).
AUDIO
OUT
(phono
jack)
Loop-through
output
of
the
AUDIO
IN
connector.
Connect
to
the audio input
of a VCR
or
another
monitor.
0 REMOTE connector (20-pin)
Connect
to the tally output
of
a control
console,
special-effect generator, etc.
The
tally lamp on the
front panel
will
be
turned
on
and
off
by
the connected
equipment.
This
connector
can
also
be
used for
connecting a remote control unit.
For details on the pin assignment
of
this connector, see
page
19.
8 RGB/COMPONENT connectors
RGB
signal
or
component
signal input
connectors
and
their loop-through output connectors.
To
monitor
the input signal through these connectors,
set the
LINEIRGB
selector
to
the
RGB
position (light
on),
and
press
the AIRGB
or
B/COMPONENT
selector (light on).
RIR-Y IN,
G/Y
IN,
B/B-Y
IN
(BNC)
When
the
EXT
SYNC
selector is set
to
the
off
position
(light off), the
monitor
operates
on
the sync signal
from the
G/Y
channel.
To
monitor
the
RGB
signal
Connect
to the analog RGB signal outputs
of
a video
camera,
etc.
To
monitor
the
component
signal
Connect
to the R-Y/YIB-Y
component
signal outputs
of
a Sony
Betacam
video
camera,
etc.
RIR-Y
OUT,
G/Y
OUT,
BIB-
Y
OUT
(BNC)
Loop-through outputs
of
the RIR-Y IN,
G/Y
IN, B/B-
y IN connectors.
When
the
cables
are connected to these connectors, the
75-ohm
tennination
of
the inputs is automatically
released,
and
the signal inputs to the RIR- Y IN,
G/Y
IN,
BIB-
Y IN connectors are
output
from these
connectors.
To
output
the
RGB
signal
Connect
to the analog RGB signal inputs
of
a video
printer
or
another
monitor.
To
output
the
component
signal
Connect
to the R-Y/Y/B-Y
component
signal inputs
of
a
Betacam
video recorder, etc.
AUDIO
IN
(phono
jack)
Connect
to
the
audio
output
of
video
equipment
when
the
analog
RGB
or
component
signal is input.
AUDIO
OUT
(phono
jack)
Loop-through
outputs
of
the
AUDIO
IN connector.
0 EXT SYNC (external sync) connectors
Press the
EXT
SYNC
selector (light
on)
to
use
the
sync signal through this connector.
IN(BNC)
When
this
monitor
operates
on
an
external
sync
signal,
connect
the reference signal from a sync
generator
to
this
connector.
OUT(BNC)
Loop-through
output
of
the
IN
connector.
Connect
to
the
external
sync input
of
video
equipment
to
be
synchronized
with this monitor.
When
the cable is
connected
to this
connector,
the
75-
ohm
tennination
of
the input is automatically released,
and
the signal input
to
the IN
connector
is
output
from
this connector.
9
.....
.....
Using
On-Screen
Menus
You can make various settings and adjustments
of
the monitor using the on-screen menus.
On-screen menu tree-chart
10
(]]U.In
menu
~
~
~
.
..
fii]STATUS 1 menu
COI.Illlll,.
DU
-lrf'-l~l'-
-·
llfiCUTI
..
LIWIL
ll
'"
~
1111-
Ol'f
..........
.
t
!2iilSTEJATUS2menu
-
.
.
.
..
laicHRDoMAsETuPmenu
'
..
@COLOR
TEMPIBAL
menu
..
~~~~:
[5]CAPT1EJON
VISION
menu"
'
-
.
w
l§iiUSER
CONFIG
1 menu
-••••u•o•P•••
lllf-PIUIII
~--
UQIIP
..
IIT
·-·
.,..,,
....
t
mbJUSER
CONFIG
2
menu
"'•v•-•-
-•IUVU
Jfi'ICMI
..
LUn
'"
,_
1-
...
---
"'I
For details on the menu type and each on-screen menu, see
JFuncrions
of
On-Screen Menus
-I:
on page
12.
!ZIAUTO ADJUST
ICrten
·•n•~-··-·
'NIIIUIIPII'GftTIGII
~--01-
...
(111
,,_
GIUM.II
N"ll'
---§
ia]ADJUSTGAINoc<een
li}ADJUST
BIAS
tcr"n
ffil!COLOR
TEMP
RANGE
mnu
[l]USER
COPY
menu
~
!i21COLOR
SYSTEM
DISPLAY menu
IU1351
TRAP
FILTER
menu
lBJSUB
CONTROL
menu
-+
ll3JSUB
CONTROL
sc:reen
ffiiiUSER PRESET menu
-+
ffiiPRESET
.OJUST
menu
!HV
HOLD screen (IE PRESET ADJUST acreen
~
IZli]COMPONENTLEVEL
monu
~NTSC
SETUP
LEVEL
menu
~ACCmenu
~LANGUAGE
menu
12j!LANDING acreen
11
"''~;::~,,,.~.f~~,,;":JJi
':-~:;2
'~S~.
re~~:Menu~ti·'~!
~D
ltJUQ
,.
"=LJM"
~~~
Menu operation buttons
There are five menu operation buttons on the front
panel
of
the monitor.
e
tl+bultOn
0 MENU/EXIT
button
0
+!-button
8 RESET button
8 ENTER/
SELECT
button
The
following table shows how these five buttons
function when using the menus.
MENU
0-
ENTER
f)
l!iD'il
.....
•
0-
.....
return
to
the previous
menu
return
to
the
previous
menu
decide a selected
item
select an adjustment
item
move
the cursor("') upwards
increase
selected
value
move
the cursor("') downwards
decrease
selected
value
reset current settings to
the
factory
setting
The
buttons that can he used on the menus
and
adjustment screens are displayed at the bottom
of
the
screen.
You can perform menu operation using the
displayed buttons.
Menu
•ITATu&
CHI'ICIWollilUI"
cot.Ofll
TIEWIIA~
CAJOTICN VIIICII\I
UIIEA
CONFIQ
Usable buttons
Adjustment screen
Usable buttons
Display ol
the
usable
menu
operation buttons
Operating procedures
To
display the menu, follow this procedure.
1 Press the MENU/EXIT
(0)
button.
MENU
<III
: main menu) appears.
2
Move
the cursor
((lo>)
to the desired setting menu by
pressing the
fl-
or tl+ (8.
8)
button.
3 Press the ENTER/SELECT
(8)
button.
The
setting menu selected in step 2 appears.
4 Move the cursor
((lo>)
to the desired item by
pressing the
fi-
or
tl+
(8,
8>
button.
5 Press the ENTER/SELECT
(8)
button.
The
adjustment screen or setting menu selected
in
step 4 appears.
For detailed infonnation
of
menus, see )functions
of
On·
Screen Menust
on
page
12.
I) [§)CAPTION VISION
menu
is
provided
with
PVM-14M4U/14M2U/20M4U/20M2U only.
2)
~LANDING
screen
is
provided
with
PVM·20M4U/20M4E only.
11
......
1\)
I
Using
On-Screen
Menus
To
display
the
next
(or
previous)
page
of
the
menus
Select NEXT PAGE on the menu to display the next
page and
PREVIOUS PAGE on the menu to display
the previous page.
MENU I
(;OC.OfiiYITEIIIIOII'UY
Ul
TM,FHTEII
~U:~~C::~
..
~:'"~AU
...
UECTHI
...
+-
MENU2
•PIIEVICUIPAQIE
~T~EWIL
f~;n.uvu
-IUCTIII
-+ : When selecting NEXT PAGE
+-
: When selecting PREVIOUS PAGE
How
to
display
the
next
or
the
previous
page
To
close
the
menu
(to
return
to
the
regular
screen)
Each time you press the MENU/EXIT
<OJ
button, the
on-screen menu returns to the one previously
displayed.
Press the MENU/EXIT
(0)
button
repeatedly until the regular screen appears.
For
PVM-14M4E/14M2E/20M4E/20M2E:
For the first time when the monitor is turned on, the
LANGUAGE
menu(~)
will appear on the screen.
So, select the language you want to use.
•EifGLIIH
DEUTSCH
'""""'"''
ITALIANO
ESPAIIOi.
1 Move the
cursor(~)
to the desired language by
pressing
the..,,_
or
tl+
(0,
E))
button.
2 Press the MENU/EXIT
(0)
button.
..
Unless you press the MENU/EXIT
(0)
button
in
the procedure above, the LANGUAGE menu will
always appear whenever you tum on the monitor.
1!2
f.f{!!l,p_!Lon§.~Qf
Q~l}:~.9!!~n·.
~',EL!S
..,_j
There are four types
of
on-screen menus.
Main
menu
You
can
enter
another
menu
such
as
status
menu
or
setting menu.
Status
menu
You can confirm the current settings.
Setting
menu
You can select an item
or
enter an adjustment
screen on this menu
by
using the
tl+,
..,,_and
ENTER/SELECT buttons.
Adjustment
screen
You can make adjustments on this screen. The
adjustments you made remain unchanged until next
change even
if
you tum off the power.
([I
indicates the factory setting.)
[I]Main
menu
Select another menu and press ENTER/SELECT
to
go
to the menu.
~STATUS
1
menu
Shows the current settings.
~STATUS
2
menu
Shows what optional kit
is
installed in the monitor.
~CHROMA
SET
UP
menu
Select ON on this menu to activate "chroma" and
"phase" (NTSC signal
on!ll
adjustments done on the
AUTO ADJUST screen
([lj).
[OFF]
@]COLOR
TEMP/BAL
menu
Select the color temperature from among D65, D93
and
USER. USER is set to D65 as the factory setting.
You can adjust or change the color temperature in
USER mode (a measuring instrument is required).
[D65)
[§)CAPTION
VISION
menu
This menu is provided only for PVM-14M4U/14M2U/
20M4U/20M2U.
The monitor can display the signal with Caption
Vision. To display it, select the caption type in this
menu.
[OFF]
~USER
CONFIG 1 menu
Select an item to adjust on the menus and screens
(1J11
through~).
To go
to
the USER CONFIG 2 menu,
select
NEXT PAGE.
~USER
CONFIG 2 menu
Select an item to adjust on the menus and screens
(~
through
~).
To go
to
the USER CONFIG I menu
select
PREVIOUS PAGE.
[l]AUTO
ADJUST
screen
Select the color bar signal (full, SMPTE, EIA) and
press ENTER/SELECT to start automatic
"chroma"
and "phase" (NTSC signal only) adjustments.
To activate these adjustments, select
ON on the
CHROMA SET UP menu
(~).
(IDADJUST GAIN
screen
Adjust GAIN in USER mode.
[IDADJUST BIAS
screen
Adjust BIAS in USER mode.
llli!COLOR
TEMP
RANGE
menu
Select the color temperature range
in
USER mode.
[5000K-IOOOOK]
!!]USER
COPY
menu
Store the factory setting
of
D65
or
D93 as the value for
USER mode.
IJ1ICOLOR
SYSTEM
DISPLAY
menu
Select the color system type. When AUTO is selected,
the color system type being used appears on the screen
each time you change the signal input.
[AUTO]
~358
TRAP
FIL
TEA
menu
Color spill or color noise may be eliminated if you
select
ON
(NTSC signal only).
Normally select
OFF. [OFF]
IH]SUB
CONTROL
menu
Select an item (CONTRAST, BRIGHT, CHROMA
and PHASE controls on the front panel) to finely
adjust on the
SUB CONTROL screen (11]) .
[§]SUB
CONTROL
screen
Finely adjust the selected item on the SUB CONTROL
menu (IH]). Each control (CONTRAST, BRIGHT,
CHROMA and PHASE control) has a click position at
the center
of
its adjustment range. You can adjust the
setting
of
the click position with this feature.
[§]USER
PRESET
menu
If you select ON on this menu, the REMOTE indicator
lights up and the controls on the front panel do not
work. The monitor operates with the user preset
settings.
To adjust the
use!:_P.reset
settings, select the PRESET
ADJUST
menu
(111J).
[OFF]
111!PRESET
ADJUST
menu
You can preset the BRIGHT, CHROMA, PHASE,
CONTRAST, VOLUME,
and APERTURE controls to
a desired level and can use these settings by selecting
ON on the USER PRESET menu ([§]).
imPRESET
ADJUST
screen
Adjust the selected item (BRIGHT, CHROMA,
PHASE, CONTRAST, VOLUME,
and APERTURE
control) on the PRESET ADJUST menu
(111!).
~V
HOLD
screen
Adjust the vertical hold if the picture rolls vertically.
When you cannot read the display, select the input that
is
not
connected.
~COMPONENT
LEVEL
menu
Select the component level from among three modes.
N
I 0/SMPTE for I 00/01100/0 signal
BETA 7.5 for
IOOn.5n5n.5 signal
BETA
0 for IOO/On5/0 signal
For
PVM-14M4U/14M2U/20M4U/20M2U
[BETA 7.5)
For
PVM-14M4E/14M2E/20M4E/20M2E
[NIO/SMPTE)
13
.....
(..)
I
Using On-Screen Menus
[gj]NTSC
SETUP
LEVEL
menu
Select the NTSC setup level from two modes.
The 7.5 setup level
is
mainly used
in
nonh America.
The
0 setup level
is
mainly used
in
Europe.
For
PVM-14M4U/ 14M2U/20M4U/20M2U
[7
.5]
For PVM-14M4E/14M2E/20M4E/20M2E [0]
~ACC
menu
Set ACC (Auto Color Control) circuit on or off. When
the fine adjustment
is
necessary, select OFF on the
ACCmenu.
Normally select
ON. [ON]
~LANGUAGE
menu
You can select the menu language from among five
languages (English, German, French, Italian, Spanish).
[ENGLISH]
~LANDING
screen
This menu
is
provided only for PVM-20M4U/20M4E.
If
the color
is
not uniform even after you press the
DEGAUSS button, you can adjust the landing so as to
obtain color uniformity on this screen.
The following two methods are available to adjust
the
landing.
When the signals
of
the horizontal lines are input
and displayed:
Press
the·/-
or
tl+
button until the lines are
displayed on the screen as horizontally
as
possible.
When the signals
of
the white color are input and
displayed:
Press the
·/-or
tl+
button until the white color on
the screen become as uniform as possible.
To
reset the setting to standard (00), press the
RESET button.
14
Connections
~,.-.·:·.~·"······.··
..
:'"''·~.•
......
v~'.:·,,
.... · ..
'"&
..
'?.
·>
:.·'-·:~
tJ:tew:.t<t£61irJ!2f.11!!_br:JJ:~2Yi,!ltJ:fgi'5(;£.;:J
Connect the
AC
power cord (supplied) to the
AC
IN
socket and to a wall outlet.
To connect an
AC
power cord securely
with an
AC plug holder
1
AC
IN
socket
AC
plug
holder
Plug the power cord into the AC IN socket. Then, auach
the AC plug holder (supplied) un top
of
the AC power
cord.
2
Slide
the
A.C
plug
holder
over
the cord until it locks.
To remove the
AC
power cord
Pull out the
AC
plug holder while pressing the lock
levers.
81R.wi9.~~n~L~Y1bJ~!Q~-~~g
.9o_~~l2J
Connect a coaxial cable with the BNC plugs to the
BNC connectors on the rear panel as illustrated below.
Insert
the
BNC
plug
into
the
connector
on
the
rear
panel,
matching
the
slit
and
pin,
and
tum
the
BNC
plug
clockwise
to
secure
the
connection.
~
15
SECTION 2
DISASSEMBLY
2-1.
TOP
COVER AND REAR COVER REMOVAL
2-2. TERMINAL BOARD REMOVAL
@Top
cover
<D
Three screws
(CASE CLAW
SCREW (OS))
l
~
@Rear
cover
~\/~
1
Three screws
(CASE CLAW
SCREW(OS))
® Seven
nylon
rivet
~
Four screws
(+BVTP 4X16)
2-3. J AND H BOARDS REMOVAL
cabinet assy
<D
Two claws
2-4. PICTURE TUBE REMOVAL
When exchange the Picture tube of PVM-20M4 series and if
thE
magnet had stuck
on
the neck of the Picture tube, peel it.
®One
screw
(EXT
TOOTH WASHER SCREW
(M~))
®One
screw
(EXTTOOrH
WASHER
-14-
2-5. SERVICE POSITION
Chassis
assy
• REMOVAL
OF
ANODE-CAP
NOTE:
Short circuit the anode
of
the picture tube
and the anode cap to the metal chassis, CRT shield
or carbon paint on the CRT, after removing the
anode.
• REMOVING PROCEDURES
CD
Turn
up
one side of the rubber cap in the direction indicated
by
the
arrow®.
® Using a thumb pull up the rubber cap firmly
in
the
direction
indicated by the
arrow®.
@ When one side of the rubber cap is separated from the anode
button, the anode-cap can
be
removed by turning
up
the
rubber cap and
pulling
up
it in the direction of the arrow
@.
•
HOW
TO
HANDLE AN ANODE.CAP
CD
Don't hurt the surface of anode-caps with sharp shaped
material!
® Don't press the rubber hardly not to hurt insilie of anode-
caps! A
material fitting called as shatter-hook terminal
is
built
in
the rubber.
@ Don't turn the foot of rubber over hardly! The shatter-hook
terminal will stick out or hurt the rubber.
-15-
SECTION 3
SET-UP
ADJUSTMENTS
3-1. PREPARATIONS (1)
I Service Mode I
This set is provided with a switch for service
on
the front panel that
can
be used
to
make various adjustments. The operation method
of
this switch is explained in detail below.
1. Entering the service mode
Simultaneously press the [EN1ER] key and the [DEGAUSS] key
shown on the display
of
the menu.
2. Service mode display
I
~~~
I
(S)
I
(4)
(3) (6)
Range
of
Service Mode Display
(1)
The
service items are largely classified into
16
types displayed
by titles.
(2)
The
names
of
the service items
or
READ/WRITE guidance, etc.,
are displayed. The names are displayed to the left and the guidance
to
the
right.
(3) This
is
the
serial number for each
of
the service items. 1-120.
(4)
This
is
the
adjustment data for the service items that are now
stored
in
the RAM. Adjustments can be made by changing these
values,
but
as long as nothing is written to the ROM the adjust-
ment
values will be erased by turning
off
the power
or
by read-
ing,
so
please be careful.
(5)
When
the
adjustment data that is now displayed is identical with
the
data
in
the ROM, the cursor (..,.) is displayed.
(6)
The
present status is displayed.
[*]:Writing to the
ROM. Make sure not to tum
off
the power
while this display is on.
[?]: ROM reading error. In this case, an image is output with the
standard adjustment data that the microcomputer itself possesses.
[i,]: Problem
in
the
12C
bus.
3. Finishing the service mode
Simultaneously press the [EN1ER] key and the [DEGAUSS] key
shown
on
the display
of
the menu.
4. Easy ON/OFF of the service mode
If
once
entering the service mode after having turned on the power,
easy
ON/OFF is possible by once more pressing the A, B or C
switch
on
the front panel (the LED lights) as long as the power is
not turned off
or
as long as the service mode is not finished.
5. Change of position of the service mode display
If
the switch is continuously pressed when turning on
in
the above
easy mode, the display position moves in the
V direction. This
method
is
used when the display is outside
of
the effective screen
area.
6. Change
of
service items
The
items are returned with the [MENU] key and forwarded with
the [ENTER] key. When a key is continuously pressed, the operation
will
be repeated.
7. Change of service data
The
service data
is
made larger with the [ t ] key and smaller with
the
[!]
key. When continuously pressing the keys, the operation
will be repeated.
8. Reading of service data
When reading data from the ROM to the RAM, press the
[B I 0]
key once and check than the READ display is shown in the guidance, and then press the
[B/0]
key once again. The adjustment
data that is written will return to its previous state, so please be
careful.
9. Writing of service data
When writing data from the RAM to the ROM, press the [DEGAUSS] key once and check that the WRITE display shown in
the guidance, and then press the
[DEGAUSS] key once again.
Not only the displayed data will be written, but all data, so please
be careful.
10. Carrying out FACTORY RESETTING
In case the adjustment data has been destroyed for some reason,
and you keep pressing the
[B/0]
key at the beginning
of
the above
reading, the READ guidance will change to
FACTORY RESET
guidance in approximately 3 seconds so that the factory resetting can be carried out. By once again pressing the
[B/0]
k::ey
after this, resetting will be carried out ([*] will be displayed as
status) and factory resetting will
be
executed. However, in case
the data available at the time
of
shipment from the factory !las
been destroyed, or if the ROM has been replaced, etc.,
or
if
fac-
tory setting mentioned later on has been carried out, factory
re-
setting is executed.
11. Carrying out FACTORY SETTING
Make sure to make possible the above factory resetting by milking a copy
of
the adjustment data when replacing the
ROM.
If
you keep pressing the [DEGAUSS] key at the beginning
oftbe
above writing, the WRITE guidance will change into FACTORY
RESET
guidance after approximately 3 seconds. By once
ag11.in
pressing the [DEGAUSS] key after this, setting will be
canied
out([*]
will be displayed as status) and the data will be copied.
By carrying out this operation, the selection items
of
the menu
and the adjustment values will
be
reset to the standard condi-
tions, so please be careful.
If
this operation is carried out once. it
cannot be carried out again, but the
FACTORY SET FLAG
(ll
o.
120) in the service mode can be set to
I.
-16-
SERVICE MAP
Table
3-1
Table map (1)
No.
SERVICE
ITEM
MAX
STD
No.
SERVICE
ITEM
1
NOR50DEF
HFREQUENCY 255
ffi
61
C'T1
D??
2
VIDEO
PHASE 255
139
62
3
VSIZE
255
139
63
4
NOR60DEF
HFREQUENCY 255
96
64
5
VIDEO
PHASE
255
115
65
6
VSIZE
255
137
66
7
NORDEF
VCENTER
255
103
57
8
HSIZE
255
108
68
9
PIN
PHASE
255
128
00
C'T2
D??
10
PIN
AMP
255
128
70
11
LOWER
PIN
AMP
255
128
71
12
UPPER
PIN
AMP
255
128
72
13
SEXY
255
128
73
14
VLINEARITY
255
120
74
15
VBOW
63
32
75
16
LOWER
BOW
63
32
76
17
VANGLE
63
32
77
18
U/SDEF VSIZE<50>
255
100
78
W/B
19
VSIZE<60>
255
100
79
aJ
HSIZE
255
118
00
21
PIN
PHASE
255
128
81
22
PIN
AMP
255
100
82
Z3
16
:9NORDEF
VSIZE<50>
255
72
In
24
VSIZE<60>
255
6)
84
25
PIN
PHASE
255
135
ffi
OTHER
26
PIN
AMP
255
00
86
Zl
16
:9
U/S
DEF VSIZE<50> 255
61
~
28
V SIZE<60>
255
:!! 88
29
PIN
PHASE
255
135
le
~
PIN
AMP
255
65
00
31
COMPONENT
SUB
PHASE
255
130
91
32
SUB
CHROMA
<NORMAL>
255
182
92
33
SUB
CHROMA
<SMPTE>
255 170
m
34
R-Y
LEVEL 255
163
94
35
NTSC
B.J
RST
GATE
PULSE
WIDTH
255
S!
95
36
CRYSTAL
255
9:1
96
:rT
PHASE
<NORMAL>
255
00
IJl
38
PHASE
<ACC
OFF>
255
96
98
:!!
B-Y
PHASE
255
162
9:1
SYSTEM
40
CHROMA
<NORMAL>
255
98
100
41
CHROMA
<ACC
OFF>
255
Zl
101
42 R-YLEVEL
255
98
102
43
NTSC443
CRYSTAL
255
82
103
44
PHASE
<NORMAL>
255
62
104
45
PHASE
<ACC
OFF>
255
64
105
46
B-Y
PHASE
255
181
106
47
CHROMA
<NORMAL>
255
104
107
48
CHROMA
<ACC
OFF>
255
36
108
49
R-Y
LEVEL
255
100
109
50
PAL
PHASE
<NORMAL>
255 110
110
51
PHASE
<ACC
OFF>
255 105
111
S!
B-Y
PHASE
255
122
112
53
CHROMA
<NORMAL>
255
109
113
54
CHROMA
<ACC
OFF>
255
41
114
55
R-YLEVEL
255
121
115
56
SEC
AM
CHROMA
255 m
116
'Sl
R-YLEVEL
255
181
117
58
COLOR
BALANCE
<R·Y>
255
118
118
00
COLOR
BALA~CE
<B·Y>
225
135
119
6)
C'T1
D??
3200KSW 1
0
120
-17-
* Signify (The setting
is
vary with the
destination.)
Refer to the
"Table
3-1
Table map (2)."
MAX
STD
BIAS<RED>
1023
376
BIAS <GREEN>
1023
512
BIAS<BLUE>
1023
396
GAIN<RED>
1023
660
GAIN
<GREEN>
1023
620
GAIN<BLUE>
1023
602
BIO<RED>
255
115
BIO<GREEN>
255
115
3200KSW
1
0
BIAS<RED>
1023
256
BIAS <GREEN>
1023
512
BIAS<BLUE>
1023
512
GAIN<RED>
1023
602
GAIN
<GREEN>
1023
700
GAIN<BLUE>
1023
672
BIO<RED>
255
95
BIO<GREEN>
255
108
9JBCCJII
<4
:3,NrnMAL>
255
178
9J
B COli
<4
:3,HN
DELAY>
255
IJl
SUB
CON
<16
: 9,NORMAL>
255
150
SUB
CON
<16
:9,HN
DELAY>
255
78
SUB
BRIGHT
255
00
USER
B/0 <RED>
255
115
USER
BIO
<GREEN>
255
115
LANDING
255
64
VHOLD
255
128
HBLANKING
255
73
V BLANKING <50>
255
82
16
:9BLANKING
START
<50>
255
32
16
: 9 BLANKING
END
<50>
255
176
V BLANKING <60>
255
161
16
: 9
BLANKING
START
<50>
255
42
16
: 9 BLANKING
END
<50>
255
226
HDELAY
255
142
VDELAY
255
104
HPPOSITION
255
145
HP
WIDTH
<NORMAL>
255
148
HP
WIDTH
<HN
DELAY>
255
62
SDIAUDIO 7 5
358
TRAP
FILTER 1
0
/ICC
1
0
CAPTION VISION
7
0
COMPONENT
LEVEL
3
*
NTSC
SETUP
LEVEL
1
*
CHROMA
SET
UP
1
0
COLOR SYSTEM
DISPLAY
3 0
COLOR
TEMPERATURE 3 0
USER
PRESET 1 0
LANGUAGE
7 0
RGBSYNC
1
0
OPTION
BOARD 7 0
AGING
MODE 1 0
PAL-M
1 0
MOD
a
31
*
COLOR
TEMP
DISP
1 127
*
COLOR
TEMP
DISP
2 127
*
REMOTE
ADDRESS
63
0
RESERVED1
1
0
RESERVED2
2
0
FACTORY
SET
FLAG
1
0
Table
3-1
Table
map
(2)
I
Model Name Component level
NTSC Set-up level
Model Color
temp disp 1
Color temp disp 2
PVM-20M4U 1
1
0 65 93
PVM-20M2U
1
1
1
65 93
PVM-20M4J 2
0
2
93
65
PVM-20M4E 2
0
3 65
93
PVM-20M2E 2
0 4
65
93
PVM-14M4U 1
1
5
65 93
PVM-14M2U 1
1
6
65
93
PVM-14M4J 2
0 7
93 65
PVM-14M1J
2
0
8 93 65
PVM-14M4E 2
0
9 65 93
PVM-14M2E
2
0 10
65 93
PVM-20M4A 2
0
11
65
93
PVM-14M4A
2
0 12
65
93
PVM-14M2A
2
0 13
65 93
PVM-14M4B 1
1
14
65 93
BVM-14M4DJ 2
0
15
93
65
BVM-14M4DE
2
0 16
65 93
PVM-20M4T 2
0
17
93
65
PVM-14M4T 1
0 18
93
65
-18-
3-2. Preparation (2). Initialization
• Supply composite video
or
component
signals as shown in Table
3-2.
Table 3-2
Signal
Details
of signal Standard level
P-W
Composite
358NT
}
100% white
0.714V
video
443NT
75%white
0.536V
PALM
)
100% white 0.7V
PAL
SECAM
75%white
0.525V
100%
whiteY
0.7V
8ETAO
75%whiteY
0.525V
75%color
8-Y, R-Y
0.7V
(P-P for this item
only)
Component
100%
whiteY
0.7V
SMPTE
75%whiteY
0.525V
75%color
8-Y, R-Y
0.525V
(P-P for this item
only)
Voice/sound
-5dBs
0.436Vrms
• Refer to Table
3-3
for groups
of
models.
Table 3-3
Group
of
Models
models
1
PVM-14M4U
PVM-14M4J PVM-14M4E
PVM-14M4A
2 PVM-14M2U PVM-14M2E PVM-14M2A
3
PVM-14M1J
4
PVM-20M4U PVM-20M4J PVM-20M4E
PVM-20M4A
5 PVM-20M2U PVM-20M2E
*
In
this chapter, D indicates the control items in the service
mode.
Example:
160
H-I'REOI
* Before turning
off
the power after adjustment in the service
mode, write the adjustment data.
When
the power is turned off
before writing, adjusted data will all be lost.
3-3. Writing model data
I.
Write model data on respective models in the service mode at
the location
of
No.ll4
MODEL
in accordance with Table
3-4.
Table 3-4
Model Model data
PVM-20M4U
0
PVM-20M2U 1
PVM-20M4J 2
PVM-20M4E
3
PVM-20M2E
4
PVM-14M4U
5
PVM-14M2U
6
PVM-14M4J 7
PVM-14M1J
8
PVM-14M4E
9
PVM-14M2E 10
PVM-20M4A
11
PVM-14M4A 12
PVM-14M2A 13
2.
Write the following data in the service
mode
at the location
of
No.ll5
COLOR
TEMP
DISP
1.
COLOR
TEMP
DISP 1
U/C,AEP
.6.,2
J
23.
3.
Write the following data in the service
mode
at
the location
of
No.ll6
COLOR
TEMP
DISP 2.
COLOR
TEMP
DISP
2
UIC,AEP
23.
J
.6..2
• Standard inspection state
Unless otherwise specified in this manual,
make
adjustment
un-
der the following conditions:
APERTURE
BRIGHT
CHROMA
PHASE
CONTRAST
VOLUME
MIN
50%
50%
50%
80%
50%
(Tum FLAT fully counterclockwise.)
(Center click)
(Center click)
(Center click)
(Center click)
~
19-
3-4. Picture output
1.
AC
Input voltage setting
I. Input VIDEO signals and AUDIO signals to respective terminals
on the connector panel.
2.
Set the sliduck
AC
voltage as shown in Table 3-5.
Table 3-5
Group
of
models Voltage
PVM-14M4J(J) PVM-20M4J(J)
AC
100±3V
PVM-14M1J(J)
(Distortion
factor:3%
max.)
PVM-14M4U(UIC)
PVM-14M2U(U/C)
AC 120±3V
PVM-20M2U(U/C)
PVM-20M4U(UIC)
(Same as above)
PVM-14M4E(AEP)
PVM-14M2E(AEP)
PVM-14M2A(AUS)
PVM-14M4A(AUS)
AC220±3V
PVM-20M4E(AEP)
PVM-20M2E(AEP)
(Same as above)
PVM-20M4A(AUS)
3-5. Landing adjustment
I.
CONT
...
MAX
BRT ... Conspicuous position
2.
Roughly adjust the white balance,
02,
and convergence.
3.
Switch
the
rotary SW
of
the single color switch to change the
color into green only.
4. Adjust
the
purity knob so that the green will come
to
the center
of
the screen. Make R and B almost identical. (Fig. 3-1)
5.
Switch to B only, R only, and G only and verify each. (Figs.3-l,
3-2. and
3-3)
6. Bring the deflection yoke gradually forward and adjust the deflection
yoke
so
that R and B on both sides
of
the screen will be
green.
(Fig.3-2-
Fig. 3-3)
7.
If
the deflection yoke comes forward too much, the pattern shown
in Fig.3-4 will appear.
If
so, move the deflection yoke back-
ward.
(Fig.3-4-
Fig.3-3)
8.
Switch
the
single color switch to B and verify the single color.
(Fig.3-6)
9.
Switch
the
single color switch to
Rand
verify the single color.
(Fig.3-9)
10.
When
two
colors are mixed, set the mixed color as the standard,
and repeat operations 6 and 7.
II.
Switch to
an
all-white signal and check the uniformity.
12.
When the deflection yoke position is determined, fasten it with
the fixture.
-20-
Fig.3-1
~
A'=A
-.~._
Fig.3-2 Flg.3-3
Fig.3-4
Fig.3-5 Fig.3-6
Fig.3-7
Fig.3-8
Fig.3-9 Fig.3-10
Fig.3-11
Purity control
Purity
Deflection
yoke
Fig.3-12
Note : Attach NTC magnets for 20M4 to the locations shown
in
Fig.3-l3.
6-pole Mg
(upper position)
Install the each magnets up and down.
Fig. 3·13
3-6.
Convergence
adjustment
(1)
1.
Input a dot pattern signal.
CONT ... Conspicuous position
BRT ... MIN
2. Align the horizontal R, G, and B dots at the center
of
the screen
with the H-START YR.
"'
When H-CENT is changed after H-STAT adjustment, readjust
H-STAT. (H-STAT will change by means
of
H-CENT YR.)
3. Align the vertical location
of
R,
G, and B in the center
of
the
screen with theY-STAT Mg. (Fig.3-l4, 3-15)
* After
Y-STAT
adjustment, paint-lock the knob.
Y-STAT
Mg
knob
While keeping the angles A and B equal
(I
= 1'), align the verti-
cal convergence.
X
y
Fig. 3·14 Good example
If
the A and B knobs are not symmetrical (I * 1'), the focus may
deteriorate, beam striking or other adverse effects may occur.
y
Fig. 3-15 Bad example
4.
For HMC, use the BMC Mg to adjust the R and B dots so that
they will be symmetrical horizontally with respect
to
the G dot.
6-pole magnet
Change the opening
degree of the BMC Mg
to
control the HMC.
R G B
~·+··r
Control the BMC Mg so
that A=A'. Maintain
1=1'
when moving
the
Mg.
Fig. 3-16
5.
For YMC, use the MBC Mg to adjust the R and B dots so that
they will be symmetrical vertically with respect
to
the
G dot.
', Do not change.
',,
...
../
ifQ)\
6-pole Mg
For
VMC control, turn
knob
to
the right or left
without changing ther
opening degree
of
the
BMCMg.
(Top)
(Botton)
R G
•
0
•
0
Make adjustment
so
that the gap will
be
the
same at
the
top
and
botton.
Fig. 3-17
6.
Repeat adjustments
2.
to 5.
-21-
*
The
above adjustment may affect the landing, so after adjust-
ment, check the landing again.
7.
Paint-lock the knobs after adjustment.
3-7. Deflection yoke neck rotation adjustment
1.
If
there
is
nonconvergence on both sides
of
the X or Y axis
of
the
screen,
turn
the neck
of
the deflection yoke in the direction
of
the arrow to hold the nonconvergence for the entire CRT screen
within
the
tolerance.
* Applicable only to groups
of
models
1,
2,
3, and 5.
( 1) Reverse cross
misconvergence pattern
(2) Regular cross misconvergence
pattern
Move
the
deflection yoke
~
Move the deflection yoke t
downward. upward.
BGR
RGB
R
~:::,
~.:r.r
::::~
G
0
B
o-···
...
,':\
eo
a
RGB
Fig. 3-18
(3) Pattern
of
left-sided
deflection yoke
B
G
R
B
~)
~,:f.,?
---··
G
0
~:::g
R
.
..
...
.
'.
doe
BGR
Fig. 3-19
(4) Pattern of right-sided
deflection yoke
R
G
B
Move
the deflcetion
__..
Move the deflection
.......
e--
yoke
to
the
right when yoke to the left
when
viewed
from
the CRT viewed from the CRT
screen. screen.
H
H H
H
R B
B R
B R R B
Fig. 3-20 Fig.
3-21
3. Insert the wedge between the deflection yoke and CRT funnel to
lock the deflection yoke. (Fig.3-24)
•
Groups of models Group of models 4 have
1 ,2,3,and 5 have been been treated.
treated.
Fig.3-24
4. The following patterns cannot be corrected by turning the neck.
(Figs.3-25, 3-26, and 3-27)
RGB
*
Gun
rotatuon
R
•·-.
G
g::)
B
~,f.?
'.•.'
0
--·•
B
::
...
o G
··--o
R
The X-axis andY-axis
beams are distorted on
both sides.
it\
,' : \
e6o
RGB
G (G)
(G)
G
000
000
R
B
Gg
RB
(G)O
(G)g
RB
GO
R
B
Fig.
3-25
*
HCR
Large( Small)
The
horizontal portion of ttB
G raster is wider(narrower)
than that of the
RB
raster on
both sides of the screen.
Fig.
3-26
*VCR
Large(Small)
The vertical portion of the
G raster is wider( narrower)
than that of the
RB
raster on
both sides of the screen.
Fig.
3-27
2 zone 3-8. Convergence adjustment (2)
Fig.3-23
2.
Tum
the
neck
of
the deflection yoke to align the V pin vertically.
* Applicable only to group
of
models 4.
YCH
XCV
ITJB
TLV
YBH
G
G=o-----------------
ITJJ/
GR
•••••••••••••••••·
\
8
~
AGe
TLH
9~
Fig.
3-28
Convergence compensation VR,coil,and
compensator
-22-
Note : When adjustment is insufficient, use pennalloy for perfect
adjustment.
1.
Group
of
models 4 (See Table 3-3.)
l. Input a cross-hatch signal.
2.
Make adjustment with the
TLV,
YCH, YBH VR, and XCV coils
of
the deflection yoke to minimize nonconvergence.
3.
When the nonconvergence
of
the TILT component is included in
the horizontal convergence, make adjustment with the TLH
com-
pensator. (Fig.3-28)
2.
Groups of models 1, 2, and 3 (See Table 3-3.)
I. Input a cross-hatch signal.
2.
Make adjustment with the
TLV,
YCH VR, and XCV coils
of
the
deflection
yoke to minimize nonconvergence.
3.
When the nonconvergence
of
the TILT component is included
inthe horizontal convergence, insert the TLH compensator into
the deflection yoke for adjustment. (Fig.3-28)
3.
Group of models 5
(See
Table 3-3.)
I. Input a cross-hatch signal.
2.
Make adjustment with the XCV coil
of
the deflection yoke to
minimize nonconvergence.
3.
When the nonconvergence
ofthe
TILT component is included in
the vertical convergence, insert the TLV compensator into the
deflection yoke for adjustment. (Fig.3-28)
3·9. G2 adjustment
l. Input a 525 monoscope signal.
2.
Connect the probe
of
the oscilloscope to TP403 on the A board.
3.
Measure the lowest reference pulse
of
the three.
4.
Make adjustment with SCREEN
VR
so
that the left end
of
the
wavefonn will
be
1.35 V±0.05
V.
1.35V
(V synchronization)
----------------~----GND
The waveform is a rectangle
as shown
on
the left.
____
Adjust the left corner
so
that
it
will be 1.35V.
Fig. 3·29
3·10.
White balance adjustment
1.
Input a 525 monoscope signal. (Input from LINE A
or
B with no
burst.)
2.
Set as follows:
CONT:O%
BRT: 50%
3.
Adjust
!SUB-BRIGHT!
in the service mode so that the 20-tone gray
scale will be as follows:
0 and 5 IRE
-+
Cut
off
10 IRE
-+
Slight glow
4. Input 525 all-white
(COMPOSITE signal without burst).
5.
Set
CONT
VR
to 80%.
6. Adjust the all-white luminance so that the screen luminance will
be
3 NIT.
7. Press MENU and select
COL
TEMP/BAL.
8.
Select 6500K.
Set
"'l3""2oo=K""'sw""l
to ''0" for both 9300K and 6500K.
9. Put the unit into the service mode.
10. Adjust to
the
standard values with
<RED>
and
<BLUE>
of
lcrn
6500K
BIASI
or
lcm
6500K
BIASI
.
Set cut-off to 3
NIT.
<GREEN>
Group of models (Table 3-3) Fix
as
follows:
2,3,5
"400"
1,
4
"512"
11. Switch the all-white signal luminance to 100 IRE.
12. Adjust to the standard values with <RED>
and
<BLUE>
of
lcrn
6500K
GAINI
or
!ern
6500K
GAiNJ
.
<Green>
Set
it
to
:ZOO.:
13. Repeat adjustment (10, 11, and 12) until the adjustment is complete, and then write the adjustment data.
14. Press
MENU
and select
COL
TEMP/BAL.
15.
Select 9300K.
16. AdjustiCit2
r.:=_""'9300=K~BI,.A"'sllcm
9300K
GAiNI
or
lcrrt
9300K
BIASI
lcm
9300K
GAIN!
in the same manner as
adjustme~ts
1013.
BIAS
<GREEN>
Group of models (Table 3-3)
2,
3,
5
1, 4
GAIN
<GREEN>
Fix it at
:ZOO.:
Fix
as
follows:
"4()0"
"512~'
-23-
3-11. Blue-only white balance adjustment
1.
Tum
ON
the blue-only
of
the user controller
SW.
(To
set blue-
only.)
2. Input all-white
(COMPOSITE signal without burst).
The
all-white signal luminance shall be 100 IRE.
CONT:
80%
.
BRT:
50%
3. Select COL TEMP/BAL.
4. Select 6500K.
5. Adjust
to
the standard values with I ern 6500K B/O<RED>I and
lcrn
6500K B/O<GREEN>l
or
lctr2
6500K B/O<RED>l and
lCffl
6500K B/O<GREEN>l •
6. Select COL TEMP/BAL.
7.
Select 9300K.
8.
Adjust
to
the standard values with
lctr2
9300K B/O<RED>l and
lcrf2
9300K B/O<GREEN>l
or
!ern
9300K B/O<RED> I and
lC!fl
9300K B/O<GREEN>l .
9. Adjust
the
all-white signal luminance, and check that the white
balance
is
satisfactory when the luminance
of
the screen is SNIT.
3-12.SUB BRT adjustment
l.
Input a
525
monoscope signal.
2.
CONT
...
MIN
BRT
.... CENTER (50&)
3. Select lsus BRIGHT! in the service mode.
4. Adjust
lsUB BRIGHT!
so
that 10 IRE glows slightly and 0 IRE is
cut
off.
3-13.Focus adjustment
1. PVM-20M4 Series
l.
Adjust
the
H focus (upper side
of
focus pack) by means
of
a dot
signal.
2.
Adjust
the
V focus (lower side
of
focus pack) by means
of
a dot
signal.
3.
Tum
the H focus fully clockwise when viewed from the front by
means of a dot signal.
4.
Tum
the H focus counterclockwise and focus well the dot
in
the
center
of the screen. When the dot is well focused, it will be
divided
into
two sections.
5.
Tum
the
H focus VR clockwise (returning direction)
so
that the
dot
will
be
as shown in Fig.3-30. At that time, both ends
of
the
central section
of
the screen are in the same state.
Dot~
\::7 8
Correct
focus
Connected
dot
Fig. 3-30
6.
Check
that
the resolution
is
more than 800 lines by means
of
a
digital monoscope signal.
7.
Check
that
the magenta ring is unconspicuous by means
of
an
all-white signal.
Fig.3-31 Movement of VR when viewed from the front
2. PVM-14M4 Series
l.
Adjust the H focus (upper side
of
focus pack) by means
of
a dot
signal.
2. Adjust the
V focus (lower side
of
focus pack) by means
of
a dot
signal.
3.
Tum
the H focus fully clockwise when viewed from the front by
means
of
a dot signal.
4.
Tum
the H focus counterclockwise and focus the dot in the cen-
ter
of
the screen well. The dot signal is divided into two sections
at that time.
5.
Tum
the H focus VR counterclockwise so that the dost will be as
shown in Fig.3-32. At that time, both ends
of
the central section
of
the screen are in the same state.
Dot~
\::7
8
Correct focus
Connected dot
Fig. 3-32
6. Check that the resolution
is
more than 800 lines by means of a
digital monoscope signal.
7. Check that the magenta ring is unconspicuous by means
of
an
all-white signal.
3
h
Fig.3-33 Movement of VR when viewed from the front
3. PVM-14M2 Series (CRT14MG)
Make adjustment so that the dots in the central section (right and
left edges) will be undivided, respectively. (When well-focused,
the dot
is
divided into two sections.)
Correct focus
The
center is separated
Slightly shift
the
focus
this
time.
0 8
4. PVM-20M2 Series
0
......_
Make
adjustment
so
that
the
center
of
the
dots
on
both
sides
are
not
separated.
0
Fig. 3-34
Focus the character "30" in the center
of
monoscope well
a-5
usualy.
-24-
SECTION 4
SAFETY RELATED ADJUSTMENT
When the parts (with
aB
,[;jjjl
mark
on
the circuit diagram) shown
below are replaced, confirm the matters described in items 4-1 and
4-2 shown below.
BR1536
[;jjjl
R551, R506, R519, R518, R516, R515, R508, R517, R1560,
Rl537,
C549, C512,
C5l3,
C523, C592, D501, D533, Q500,
Q511, IC500, and IC507
When the following parts are replaced, check the +B voltage:
IC600, IC602, D610, C615,
C63l,
C621, C632, and T603
Confirmation
procedure
l.
Input 120
VAC.
2. Input a monoscope signal, and minimize
CONTRAST
and
BRIGHT.
3. Check that the voltage
of
the
CN605@
pin is 115.7 VDC.
4-1. CONFIRAMATION OF +B MAXIMUM
Standard : Less
thanll5.7
VDC(CN605 pin @)
Check Condition Input voltage : 130
VAC
Note: Use NF Power Supply
or
make sure that distortion factor is
3%
or
less.
Input signal : Monoscope
Controls : BRT &
CONT
-+
Normal
4-2. CONFIRAMATION
OF
HOLD-DOWN CIRCUIT
Check Condition Input voltage : 130
VAC
Input signal : White &Dot
Controls : BRT
& Cont
-+
Max. & Min.
4-2-1.Hold-Down Circuit (+B)
a) Adjust the beam current to 600±50J.IA with the pin
@of
CN605
with the external DC power supply (less than 127.0 VDC)to the
point
just
before the hold-down circuit works.
Input
Signal : White
b) Adjust the beam current to
80±20J.IA with the pin
@of
CN605
with the external
DC
power supply (less than 127.0 VDC)to the
point just before the hold-down circuit works.
Input
Signal : Dot
4-2-2.
Hold-Down
Circuit (3rd Wire voltage
of
FBT)
Check item : Check
of
pin ®
ofiC500
voltage : more than
11
O.OVDC
a)
Adjust the beam current to 600±50J.IA with the pin ® of IC500
with the external DC power supply (less than 141.0 VDC)to the
point
just
before the hold-down circuit works.
Input
Signal : White
b) Adjust the beam current to
80±20J.IA with the pin
®of
IC500
with the external DC power supply (less than 141.0 VDC)to the
point
just
before the hold-down circuit works.
Input
Signal : Dot
-25-
',
A
BOARD
<
Compone~t
Side>
II
ol
TP503
digital multimeter
'-----EJ
i
-26-
SECTION 5
CIRCUIT ADJUSTMENTS
5-1.
A BOARD ADJUSTMENT
LJ09
[eJ
J2
17
TP306
0
CJIC3o5
I
16
TPJOI
TP307
0
OTP305
0
1
CNJOI
11
11.
PREPARATION/SIGNAL SPECIFICATIONS I
1. Signal specifications
• Supply a composite video
or
component signals from the CN30 l
connector. Refer to Table
5-l
to take into consideration the ef-
fect on the Q board.
The level
of
the signal to supply should equal to values shown in
Table
5-1
plus/minus 2% max.
Table
5-1
Standard
Reduction
Connector
Signal
Details ofsignal
level
rate
supply
(Pedestal
level
white)
.,..
(PW)
100%white
0.714V
93%
0.664V
75%white
0.536V
#
0.498V
358NT
}
Composite
443NT
Burst
video
(Green section)
286mV
94%
269mV
(P-P
for1his
(632mV)
(94%)
(594mV)
(75%color
item only)
bar)
100%
white
0.7V
#
0.651V
PAL
75"1owhite
0.525V
"
0.488V
SECAM}
PAL
burst
PALM (Green section)
300mV
94%
282mV
(P-P lor this
(664mV)
(94%)
(624mV)
item
only)
100"1owhite
0.7V
94.8%
0.664V
BETAO
75"1owhite
0.525
#
0.498V
75%color
B-Y,
A-Y
Compo-
(P-P
lor this
0.7V
#
0.664V
nent
item
only)
(75%
color
100"1owhite
0.7V
#
0.664V
bar)
75"1owhite
0.525V
#
0.498V
SMPTE
75%
color
B-Y,
A-Y
0.525
#
0.498V
(P-P
lor this
item
only)
OTPJOO
1
CN401
8
[==:J
TP402
0
zz
IC507
rz
C/6)!J
C:1==l
IC50J
e:r
I 8
IC502
16
•
L=:J
I 8
2.
Preparation
RV501
~
• In this chapter, D indicates the control items
in
the service
mode.
Example:
160
H-PRQI
Write the applicable model data at the location
of
NO.ll4
MODEL in the service mode.
Group
of
models 4 ... 0
Group
of
models 5
...
l
Group
of
models 1 ... 5
Group
of
models 2 ... 6
Group
of
models 3 ... 8
• Refer to Table 5-2 for the following groups
of
models.
Table
5-2
Group
of
Models
models
1
PVM-14M4U PVM-14M4J
PVM-14M4E
PVM-14M4A
2 PVM-14M2U PVM-14M2E
PVM-14M2A
3
PVM-14M1J
4
PVM-20M4U
PVM-20M4J PVM-20M4E
PVM-20M4A
5 PVM-20M2U PVM-20M2E
• CONT 80% is the center click position
of
the
user
controller.
I2.ADJUSTMENT
OF
DEFLECTION
SYSl~~
1.
Adjustment of horizontal oscillation
frequmcy
1.
Input a 525 monoscope signal.
2.
CONT ... 80%
BRT .... 50%
3. Set the unit in the service mode.
-27-
4.
Connect
the IC507
<D
PIN on the A board to
GND
via the
1001Jf
16V chemical capacitor. (Use
CN505@
PIN
for GND.)
Or
in-
sert the H-FREQ
jig
into CN505.
100p/16V
Rg.S-1 H-FREQ jig
5. Adjust
160
H-FREQI
so that the slanting lines on the screen will be
vertical. (Fig.5-2)
6. Input a 625 monoscope signal.
7. Adjust
ISO
H-FREQI
so that the slanting lines on the screen will be
vertical. (Fig.5-2)
Fo:Low Fo:Optimal Fo:High
Fig.5-2
2.
H BLANKING adjustment
1.
Input a 525 monoscope signal.
2.
CONT
...
80%
BRT
....
50%
3. Set the unit in the service mode.
4. Observe
the
anode
of
TP300
or
D516 with an oscilloscope, and
adjust
IH-BLANKINGI
so
that the waveform will be as shown in
Fig.5-3.
-.--_...
..
1----
------------------------
-+----
6V
9.3±0.1
pS
Fig. 5-3
3.
Picture phase adjustment
1.
Input a 525 monoscope signal.
2.
Set
the unit in the UNDER
SCAN
mode.
3.
CONT
... Min.
BRT ....
Max.
4. Set the unit in the service mode.
5. Adjust
IUIN
H-SJZBI
so that the white frame
of
the monoscope will
be approx. 1 em to the inside
of
the effective screen.
6.
Tum
RV50l (H-CENT) so that B =
B'.
7. Adjust
160
VIDEO
PHASE
I so that the signal area will be in the cen-
ter
(A=
A')
of
the deflection area. (Fig.5-4)
8. Input a 625 monoscope signal.
9. Adjust
lsoVIDEOPHASEI in the same manner.
Deflection area
Signal area
' '
Effective screen
Fig.5-4
4.
V BLANKING adjustment
l.
Input a 525 monoscope signal.
2.
Set the unit in the UNDER
SCAN
mode.
3.
CONT
... Min.
BRT
... Max.
4.
Set the unit in the service mode.
' '
A=
A'
B=B'
A'
B'
---
5. Adjust IV-BLANKING<60>1
so
that the white frame in the upper
section
of
the monoscope will be about to be blanked.
Note:
Blanking up to the point 1H away from the white frame is
permissible, but the adjusting center should be up to the
point
0.5H away from the frame.
6. Cancel the UNDER SCAN mode, and set the unit in the normal
16:9 mode.
7. Adjust
lr.-t6;;:;:9"'B'"LANKIN,.....=:uo"'s""-r.":AKr=-<60>::;;;:-,l
and lt6:9 BLANKING
BND<60>
ilo
that the number
of
frames in the vertical direction in the lumi-
nous section
of
the screen will
be
11.74 and the BLK quantity
at
the top and bottom will be the same.
Note
: Make adjustment before 16:9 V-SIZE adjustment.
-28-
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