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PVM-2130QM,RM-668
Service Manual
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Sony PVM-2130QM,RM-668 Service Manual

PVM-2130QM
SERVICE
MANUAL
AEP Model
Chassis No. SCC-A99A-A
Australian
Model
West
Germany
Model
Chassis No. SCC-B 19A-
Color system PAL, SECAM, NTSC and NTSC4
43
systems,
switched automatically
Picture tube
Trinitron
tube
Approx.
54.5
cm
(21
inches)
(50.6
cm picture measured diagonally)
100-degree
deflection,
AG pitch 0.55 mm
Resolution Video input: 420 TV lines
RGB
inputs:
640x200
dots
(2000
characters)
Color
temperature
9300°
Frequency response
10 MHz
(-3
dB, RGB)
5
MHz
(-3
dB, composite video)
Horizontal linearity
Less than
+7%
Vertical
linearity Less
than
±8%
Line
pull range Horizontal:
-t- 500
Hz
Vertical:
-8
Hz
Overscan
of the
picture
Less than
-i-7%
Convergence
Central
area:
within 1.0 mm
Periphery: within
1.8 mm
LiNE
A/B, VTR inputs
ViDEOIN:
LINE AyB:BNC connector
Composite
video, 1 Vp-p
±6 dB, sync
negative, 75-ohm
termination
switchabie
VTR: 8-pin connector
Composite video, 1
Vp-p ±6 dB, sync
negative,
75-ohm terminated
AUDIO IN: LINE A/B: Phono
jack
-5
dBs, more than 47
kilohms
VTR: 8-pin
connector,
-5
dBs, more
than 47 kilohms
LINE A/B
outputs (loop-through
outputs)
VIDEO: BNC
connector
AUDIO: Phono
jack
Monitor outputs VIDEO:
BNC connector
Composite
video, 1
Vp-p
AUDIO: Phono
jack
Less than
1 kilohm
Digital
RGB inputs RGB:
D-sub 9-pin
connector
(See "Signal
assignment”.)
AUDIO:
Phono
jack
-5
dBs, more
than 47 kilohms
AV connector
21-pin connector
(See "Signal
assignment".)
Speaker
terminals
8
ohms
Control
S
input/output
Minijack,
5 Vp-p
Power
output 7 W
-f 7 W at 8 ohms
Power requirements
220
-
240 V AC,
50/60 Hz
Power
consumption
140 W
Dimensions Approx. 516
x
409
x
482
mm
(w/h/d)
incl.
projecting parts
and controls
Weight
Approx.
30.6 kg
Supplied
accessory
Remote
commander
RM-668,
with 2 R6
batteries
1
Optional
accessories
TV
stand
SU-538,
SU540
Speaker
system SS-X6A, APM-X5A
—
Continued on
page
2
—
TRINITRON
COLOR
VIDEO MONITOR
PVM-2130QM
RM-668
SIGNAL
ASSIGNMENT
DIGITAL
RGB
connector
(D-sub
9-pin)
1 2 3
4 5
6
7 8 9
Digital signal (TTL level)
Pin No.
Signal assignment
1 Ground
2
Ground
3
Red input
4
Green input
5 Blue
Input
6
Intensity
input
7 No
connection
8
H. sync input
(positive/negative)
9 V.
sync input (positive/negative)
AV connector
(21-pin)
20
18 16 14
12
10 8
6
4
2
oooooooooo
o o
oooooooo
21 19 17
15 13 11
9
7
5
3 1
PlnNQ.
Signal hml
1
Audio
output B
(right)
Standard level: 0.5
Vrms
Output
impedance: Less
than
1 kohm*
2
Audio input
B
(right)
Standard
level: 0.5
Vrms
Input
impedance:
More than
10
k ohms*
Audio
output A
(left)
Standard level: 0.5
Vrms
Output
impedance: Less
than
1 kohm*
Ground (audio)
5
Ground (blue)
6
Audio input
A
(left)
Standard level: 0.5
Vrms
Input
impedance:
More than
10 k
ohms*
7 Blue
input
0.7 V ±3 dB,
75 ohms,
positive
8
Function
select
(AV
control)
High state (9.5
-
12
V): Peri mode
Low state
(0
-
2
V): TV mode
Input
impedance:
More
than
10 k ohms
Input
capacitance:
Less
than 2 nF
Pin
No.
Signal
Signal level
9
Ground
(green)
10
Open
11 Green input
(Same
as
Pin
7)
12 Open
13
Ground (red)
14
Ground
(blanking)
15 Red
input
(Same
as
Pin
7)
16
Blanking input
High
state
(1
-3V)
Low state
(0
-
0,4 V)
Input impedance: 75 ohms
17 Ground
(video output)
18
Ground (video input)
19 Video
output
1 V
±3
dB, 75 ohms,
positive
Sync:
0.3 V
(±3
dB)
20
Video input
1 V ±3 dB, 75
ohms, positive
Sync: 0.3V(±3dB)
21
Common ground
(plug, shield)
*
at 20
Hz
-
20 kHz
Design and
specifications subject to
change
without
notice.
TROUBLESHOOTING
If these
symptoms
occur when you
begin
operation, follow the
suggestions below.
SYMPTOMS
CORRECTIONS
No
controllable keys
although the
POWER switch is turned
on.
•
Press the
CONTROL key.
No
indication appears
although
the CONTROL
key is pressed.
•
Set
the
MANUAL
CONTROL
switch on the rear
panel to
ON.
Remote
control is
not
possible.
•
Set
the REMOTE
CONTROL
switch on the rear panel
to
ON.
If
the
problem
still
cannot
be
solved, contract
your authorized Sony dealer.
2
TABLE
OF
CONTENTS
Section
Title
Page
1.
GENERAL
1-1.
Location
and Function
of Parts
and
Control
4
1-2.
Operation
8
1-3.
System Connections
9
2.
DISASSEMBLY
2-
1 . Power
Block
Assy and Chassis
Assy
Removal
13
2-2.
Key
Board
Unit Removal
13
2-
3. Picture
Tube Removal
14
3.
SETUP
ADJUSTMENTS
3-
1 .
Beam
Landing
15
3-2.
Covergence
16
3-
3. White
Balance
Adjustment
18
4. CIRCUIT
ADJUSTMENTS
4-
1. FA Boards
Adjustment
19
4-2.
D
Boards
Adjustment
19
4-3.
HC Board
Adjustment
20
4-4.
B
Board
Adjustment
20
4-
5. Safety Check
Adjustment
21
5. DIAGRAM
5-
1. Circuit Boards
Location
23
5-2.
Block
Diagram
24
5-3.
Frame
Schematic
Diagram
29
5-4.
Schematic
Diagram
and
Pointed
Wiring
Boards
34
5-
5, Semiconductors
63
6. EXPLODED
VIEWS
6-
1 . Picture
Tube
65
6-2.
Chassis
66
6-3.
Back Cover
67
6-4.
Key Board Unit
68
7.
ELECTRICAL
PARTS
LIST
69
SAFETY-RELATED
COMPONENT
WARNING
!!
COMPONENTS
IDENTIFIED
BY
SHADING
AND MARK
A
ON
THE
SCHEMATIC
DIAGRAMS,
EXPLODED
VIEWS
AND IN THE
PARTS
LIST ARE
CRITICAL
TO
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
TO
SAFE
OPERATION
ARE
IDENTIFIED
IN
THIS MANUAL.
FOLLOW
THESE
PRO-
CEDURES
WHENEVER
CRITICAL
COMPONENTS
ARE
REPLACED
OR IMPROPER
OPERATION
IS SUSPECTED.
PVM-2130QM
RM-668
1-1.
LOCATION
AND
FUNCTION
OF
PARTS
AND
CONTROL
SECTION
1
GENERAL
•
Press
CONTROL
key after power is
turned
on
to illuminate
the control
keys or indicators.
The following
control keys
are effective
only
when
MANUAL
CONTROL switch
on
the rear
panel
is
set to ON.
4
PVM-2130QM
RM-668
Ij]
norm
(normal) key
Press
this
key to
return to
the
standard setting.
•This key
is
effective
oniy for the
controi keys
on
the left.
[2]
HUE
control keys
Press the GRN
(green)
key to make the skin
tones
greenish or the PUR
(purpie) key
to make it purplish.
•
These
controi keys
are effective for the NTSC
and
NTSC
443
coior systems
only.
[3]
COLOR control keys
Press the
+
key to
make the color intensity
vivid or the
-
key
to
make it pale.
[
4
]
BRIGHT (brightness)
control keys
Press
the
+
key to
make the picture brighter or
the
-
key
to
make it
darker.
[s] SHARP (sharpness)
control
keys
Press the
+
key to
obtain
a
sharp picture or
the
-
key
to
obtain a
soft picture.
Q]
BALANCE control keys
Press the L key to increase the sound volume of
the left
speaker or the R key to
increase
the sound volume
of the
right
speaker.
[T]
Coior system indicators
PAL, SECAM, NTSC, NTSC443
The color
system
of
the
input signal
is automatically
selected and the corresponding indicator illuminates.
When the input signal is monochrome,
no color system
indicator illuminates.
[T] MUTING
indicator
Illuminates while
the sound is muted.
•
Muting is controlled only
by
the Remote
Commander.
H]
STANDBY
indicator
Illuminates when the
power is turned off
by
the Remote
Commander.
Ql
POWER switch
Press
this
switch
to
turn
the monitor on.
Press
this
switch again
to turn it off.
•
When the
monitor is
turned on, the
settings of the
monitor are the
same as when
it was last turned off.
•
For a
few
seconds
after
turning
on the monitor the color
of
picture may vary
because the white
balance is
adjusted at
this time.
This is not
a problem.
Qi] Remote control
detector
The beam from the Remote
Commander
(s received
here.
im
CONTROL key
Press this key to illuminate the
keys and indicators on the
front panel.
Press this key again to extinguish
them.
[H
VOLUME
control
keys
Press the
+
key
to
raise the
volume or the
-
key to lower
it.
[
1
^
PICTURE
control keys
Press the
+
key to make the
contrast, color intensity and
brightness
stronger or the
-
key
to make them weaker.
[m
Input
select keys
LINE
A, LINE B, VTR, AV,
DIGITAL
Select
the input source connected
to the LINE
A,
LINE B,
VTR, AV
or DIGITAL RGB connector.
When
a
key
is pressed:
•
it blinks
if the other indicators and
keys on the front
panel illuminate.
•
it illuminates
if they are extinguished.
Key
illumination
For the keys
Q]
through
0,
[13]
and
[14]:
•
While each key is pressed,
it blinks,
indicating that
adjustment is going
on.
•
During adjustment, if
the adjustment value reaches
the
limit, the blinking
speed becomes slower.
5
PVM-2130QM
RIVI-668
REAR
PANEL
•
[T|
TREBLE
control
-s
BASS
control
^in
PICTURE
(RGB)
control
[X|
H CENTER (DIGITAL RGB) control
s
V HOLD
control
'
I
6
I
CONTROL select switches
[T]
TREBLE
control
Turn
clockwise for
more
treble (high
tone),
or
counterclockwise
for
less.
[
2
]
BASS
control
Turn
clockwise
for
more
bass (low
tone),
or
counterclockwise
for less.
Q]
PICTURE
(RGB)
control
Adjust
the contrast
of the
RGB
signals
connected
to the
AV
connector
or the
DIGITAL
RGB
connector.
[Tj
H
CENTER
(DIGITAL
RGB)
(horizontal
centering)
control
When
the
picture of
DIGITAL
RGB
input is
decentered
horizontally,
correct it
with
this
control.
U]
V
HOLD
(vertical
hold)
control
When
the picture rolls
vertically,
correct
it with
this
control.
[6]
CONTROL
select
switches
Normally
set to
ON.
REMOTE
CONTROL
switch
Set this switch
to ON to
control
the monitor
with
a
Remote
Commander.
If this
switch is
set to OFF,
the
remote
control is
not
possible.
MANUAL
CONTROL
switch
Set this switch
to ON
to control
the
monitor
manually.
To
make the
manual
control
of
the
control
keys or
switches
on the front
panel
impossible,
extinguish the
indicators
by pressing
the
CONTROL
key
on the front
panel and
set this
switch
to
OFF.
(However
remote
control
is
possible
if the
REMOTE
CONTROL
switch
is
set to
ON.)
6
PVM-2130QM
RM-668
CONNECTORS
1
1
SPEAKER
L/R terminals
CONTROL S connectors
3
I
LINE
A/LINE
B
inputs
MONITOR
OUT
connector
VTR connector
SUPERIMPOSE
switch
AV connector
U]
SPEAKER
UR terminals
Connect
to speakers with
8 to 16 ohm
impedance.
|T] VTR connector (8-pin)
Connect
to a
VTR
with an
8-pin TV
connector.
[2]
CONTROL
S
IN/OUT
connectors
Connect
to the CONTROL
S connectors of
a VTR or
another
monitor.
It is
then possible
to control the
whole
system with
a
single
Remote
Commander.
[U
LINE
A/LINE B inputs
H]
DIGITAL
AUDIO
jack (phono
jack)
Connect
to the audio
output of an
audio source
to
listen
to the
sound from the
connected
audio
source while
viewing the
picture from
the DIGITAL
RGB connector.
[T] DIGITAL
RGB
connector
(9-pin, D-sub)
Connect
to the digital
RGB
output of
a
microcomputer.
VIDEO
IN
connector (BNC
type)
AUDIO UR
IN jacks (phono
jack)
Connect
to the video and
audio
outputs of
a
VTR
or
a
camera.
VIDEO
OUT connector (BNC
type)
AUDIO
UR OUT jacks
(phono
jack)
Loop-through
outputs
of
the IN
connector
and
jacks.
Connect
to the video and
audio inputs
of
another
monitor.
75-ohm
termination
switch
When
only the VIDEO IN
connector
is
used (nothing
is
connected
to the VIDEO
OUT
connector),
set this
switch
to
ON.
When
both connectors
are
used together
for
a loop-
through
connection,
set this
switch
to OFF.
S]
MONITOR
OUT
connectors
VIDEO
connector (BNC
type)
AUDIO
UR
jacks
(phono
jacks)
The
video
and audio signais
supplied
from
the LINE
A,
line
B,
VTR or AV input selected
by the front
panel input
select
keys are output from
these
connectors.
Connect
to the video and audio
inputs
of another
monitor,
VTR,
etc.
S]
INTENSITY
switch
Normally
set to OFF. When
a microcomputer
provided
with intensity
output is
connected,
set to
ON for
16-coior
display.
[T| AV switch
Set to ON so that
the monitor
is automatically switched
to
the
AV input when
a signal is
input from the AV
connector,
taking
priority over
the LINE
A,
LINE
B or VTR
input previously
selected
by the input select keys on the
front panel.
Set to OFF
to select the
AV
input manually
by
pressing the
AV input select
key.
di
SUPERIMPOSE
switch
Normally
set to ON.
Set to OFF
to display the
analog RGB
signal from the
i
microcomputer
connected
to the AV
connector.
[TTJ
AV
connector
(21
-pin)
Connect
to the
21-pin
multiconnector
of an
8 mm video
cassette
recorder
or the
analog
RGB multioutput
i
connector
of
a microcomputer.
7
PVM-2130QM
RM-668
1-2.
OPERATION
displaying
the
picture NOTES
ON INPUT SELECTION
AV input
and
SUPERIMPOSE
switch
Set the
SUPERIMPOSE
switch
on the
rear
as
follows,
according to the
signal supplied
to the
AV connector.
1
Depress the POWER switch.
One
of the input select keys illuminates.
2
Press the CONTROL key.
The selected input select key blinks and all control keys
on the front illuminate.
(If the
control
keys do not
appear, set the MANUAL
CONTROL
switch on the rear to
ON.)
3
Press the desired input
select
key.
The
pressed key blinks and the picture
from the selected
input
is
displayed
on the screen and the sound is heard
through
the
speakers.
(For selecting the AV or DIGITAL input, see “Notes on
input selection".)
4 Adjust the picture and sound. 5 Press the CONTROL
key
to
extinguish the controls keys
so that
only
the selected
input select
key
illuminates.
SUPERIMPOSING
To
superimpose
the
data from the microcomputer connected
to
the AV connector
over the picture, proceed
as
follows.
(The
data should
be
processed for superimposition on the
microcomputer.)
1
Set the
SUPERIMPOSE
switch
to ON.
2 Press
the
LINE
A,
LINE B or VTR input select
key to
display
the
picture
on
which
the data is
to be
superimposed
on
the
monitor screen.
3 Press
the AV
input
select key.
The
data
is
superimposed
over the picture.
4
Adjust
the
contrast
of the
superimposed
data with the
PICTURE (RGB)
control.
SUPERIMPOSE
8v4tch
Signal to
be
displayed
ON
•
To display the composite video
signal from an 8 mm video cassette
recorder,
etc.
•To perform superimposition.
(See
“SUPERIMPOSING”.)
OFF
•
To display the analog RGB signal
from
a
microcomputer, etc.
In this
case,
the sync signal should
be
supplied
to
pin 20 of the AV
connector.
•
When the AV input
select key is pressed with the
SUPERIMPOSE switch ON, the
previously selected LINE A,
LINE B or VTR input
select key blinks together with the AV
key.
•
When it is pressed with
the SUPERIMPOSE switch OFF,
only the AV key
blinks.
AV input
and AV switch
When the AV switch on
the rear is
set to
ON, the monitor is
automatically switched
from the LINE A, LINE B or VTR input
to
the AV input if a
signal is input
to
the AV connector.
Set
the AV switch to
OFF
to
select the AV input manually by
pressing the AV input
select key.
DIGITAL
input
•
To display the digital RGB
signal from a microcomputer
provided with intensity
output in 16 colors, set the
INTENSITY switch on the
rear to ON.
•
If necessary, center the
picture from the DIGITAL RGB
connector with the H
CENTER control on the rear
panel.
Note
The COLOR, HUE and
SHARP control keys do not
function
when
the
DIGITAL input
is selected
or the AV input is
selected
with the SUPERIMPOSE
switch OFF.
8
CONNECTION
DIAGRAM
oKoaSaiQ
QOQqI
•
oii
lQ
aaaai a
Q
8
mm video
cassette
recorder,
etc.
Align
and insert
the
connector.
To remove,
whiie
1
pressing the
catches, pull.
Optional
video
cable
VMC-S
or
equivalent
Left Right
speaker speaker
When
a
microcomputer
has
an
analog
RGB
output
connector,
connect
it to
the
AV
connector.
2
Tighten
the
Another
monitor
•
When
a
microcomputer
has
only
a
composite video
output
connector,
connect
it
to
the
LINE
A
or
LINE B
VIDEO
IN
connector.
PVM-2130QM
RM-668
CONNECTING
SEVERAL MONITORS
A
loop-through connection
is convenient
for
monitoring the
same
signal on ther
monitors. Up to
10 monitors
can be
connected.
It
is
recommended to use a
signal
distributor
when
several monitors are
connected.
r
1
i
pOITj
Q oloQl
i
ie
j
r 1
fPWI i
0
imiaa
a aaaa ‘-7=^
a
aaia
’
a
O
-
10
-
PVM-2130QM
RM-668
CONTROL
S
CONNECTION
The
following connections allow remote
control of
several
monitors and
a
VTR through
a
single
monitor.
-
11
-
Last monitor
PVM-2130QM
RM-668
Do
not use
the following
loop connections.
PVM-2130QM
RM-668
2-3.
PICTURE
TUBE
REMOVAL
•
Removing Procedures
®
Turn
up one
side
of the
rubber
cap
in
the
direction
indicated
by the
arrow (a)
Using a
thumb,
pull
up the
rubber
cap
firmly in the
direction
indicated by the
arrow
@
(j)
Ih/hen
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
@
14
-
PVM-2130QM
RM-668
SECTION 3
SET-UP
ADJUSTMENTS
•
The
following
adjustments
should be made
when
a complete
realignment
is required or a
new
picture
tube
is installed.
•
These
adjustments
should
be performed
with
rated
power
supply
voltage
unless
otherwise
noted.
Perform
the adjustments
in order
as follows;
1. Beam Landing
2.
Convergence
3. White
Balance
Note: Test
Equipment Required
1. Color-bar/Pattern
Generator
2. Degausser
3-1.
BEAM
LANDING
Preparation;
•
Input
the
RASTER
pattern.
•
Before
starting, degauss
the entire screen.
1
.
Turn on set power supply and input a RASTER
signal.
2.
Evenly
degauss the
entire screen.
3.
Loosen the deflection yoke mounting screw,
and set the
purity
control
to the center
as
shown
in
Figure 3-1.
4.
Input
a red signal.
5.
Move
the deflection yoke back, and adjust
the
purity
control
so
that RED is in the center and
GREEN and BLUE
are
at
the sides, evenly.
(Figure 3-2.)
6.
Move
the
deflection
yoke
forward so that the
entire screen
is
red.
•
If the deflection yoke is pushed all the way
to the
CRT
then moved slightly back, land-
ing adjustment is easier.
7. Substitute
GREEN, then BLUE for RED in
step
4
and check landing.
8.
Rotate RED, GREEN and BLUE once each and
check
landing.
9.
When landing is not right, adjust the purity con-
trol and
use
magnets as
shown
in
Figure 3-3,
then
repeat steps
7
and
8
.
10.
When
a
magnet
is
used, be sure to perform step
2
,
and tighten deflection yoke mounting
screw loosely.
Purity
control
-
15
-
PVM-2130QM
RM-668
3-2.
COVERGENCE
Preparation:
• Before
starting,
perform FOCUS, H.
SIZE,
V. SIZE
and V.
LIN adjustments.
4. When
the V.
STAT
magnet is
moved
in
the direc-
tion of arrow
@
and
®
,
Red, Green
and Blue
dots move
as shown
below.
1. Adjust
H. STAT VR to coincide red,
green and
blue
dots on the center of screen
(Horizontal
movement)
2. Adjust
V. STAT magnet
to
coincide red, green
and
blue
dots
on
the center of screen (Vertical
move-
ment)
3.
If the
red,
green and blue dots do
not coincide on
the
center
of
screen
with H. STAT VR, perform
horizontal
convergence
adjustment using H.
STAT
VR
and
V. STAT magnet
as
shown below.
(In this
case,
H.
STAT
VR and V.
STAT magnet effect
each
other.)
•
Tilt
the
V. STAT magnet and adjust static con-
vergence
to
open
or close
the V.
STAT magnet.
If
blue dot
does
not coincide
with
red and green
dots,
perform
following steps.
Move
BMC magnet
(a) to
correct insufficient
H.
static
convergence.
Rotate
BMC magnet
(b) to
correct
insufficient
V.
static
convergence.
In either
case, repeat
Beam Landing Adjustment.
PVM-2130QM
RM-668
(2)
Dynamic Convergence
Adjustment
Preparation:
•
Before
starting, perform
Horizontal
and
Vertical
Static Convergence
Adjustment.
1.
Loosen deflection
yoke
screw.
2.
Remove deflection
yoke
spacers.
3.
Move
the
deflection
yoke
for
best
convergence
as
shown
below.
4.
Tighten
the deflection
yoke
screw.
5.
Install
the deflection
yoke
spacers.
-
17
-
PVM-2130QM
RM-668
3-3. WHITE BALANCE
ADJUSTMENT
1
)
SCREEN (Gj
)
adjustment
1.
Confirm that
Gi
line
voltage
is
30±5 Vdc.
2.
Adjust CUT
OFF(R,B)
so
that
R,B
cathode
voltage becomes 180
V DC.
Adjust with Gj VT
immediately
prior to
the
disappearing of
the luminscent
line.
2)
W/B adjustment
1
.
Input
a aU
white
signal.
2.
Set the PICTURE
control
to
minimum
and turn
the BRIGHT
control
mechanical
center.
3.
Set R
CUT
OFF(R,B)
and
RV703 (B
CUT
OFF) to minimum.
4.
Turn
RV701
(SUB
BRT)
slowly
to
obtain a
faintly visible
cross-hatch.
Note the color tjat
first
becomes visible
by
turning
RV701.
5.
Adjust
the other
two
BKG
controls for
best
white
balance (neutral
gray)
of the
faint
cross-
hatch.
6.
Set
the PICTURE
control
fully clockwise.
Observe
the screen
and adjust
the
RV1301
(G,H/L),
RV1302
(B,H/L)
controls for
best
white balance.
(B Board)
7.
Repeat
steps
1
,
through 7.
B Board
^
RV1301
^
R
VI
302
R VI
301 (G.H/U
RV1302
(B.H/U
(Component side)
C
Board
RV706
o
o
RV705
R\/703
o
o
RV701
RV703(B CUT OFF)
RV705(R
CUT OFF)
RV706(SUB. BRT)
RV701
(SCRN)
(Component side)
-
18
-
PVM-2130QM
RM-668
SECTION
4
CIRCUIT
ADJUSTMENTS
4-1.
FA
BOARDS ADJUSTMENT
1.
Supply
220V ac to with
variable
auto-transformer.
Adjust R
V503
and
R V509
for
a best
vertical
2.
Adjust RV6S1
so that the
+B line is
140V±O.SV.
SIZE
Picture.
3. Adjust
R V652
so that
the pin
(J^or
IC651 is
32±0.
1
V.
4-2.
D BOARD
ADJUSTMENTS
I
Horizontal
Position Adjustment
\
1. Check that H
center
moves to the right and
left
with
horizontal position
VR (RVSS5),
then adjust horizon-
tal position
to center.
[Picture
Distortion
Adjustment^
1. Picture
distortion adjustment
input
a signal
equivalent
to
a
crosshatch signal.
•
PIN PHASE
IRV553I
•
PIN AMP (RV5S2)
2. Adjust RV554
(H.SIZE)
so that
H.SIZE is
best.
3. Adjust R
V555
(H. CENT!
so
that horizontal position
is
center.
I
H.FREQ
Adjustment\
1.
Input
a
color bar
signal and short
between
iCSOI
pins
(l^and
Also
short
board IC401
pins
@
and
2. Adjust
H.FREQ
VR
(RVS01)
so that
picture flow
is as
shown in
Figure.
3. After
adjustment,
remove
the connections
in step(Tj
fo low
fo correct
fQ
(fo=1S.734Hz)
D
Board
RV501
(H.FREQ)
ICSOI
1
11 (H FREQ)
RVS03
(V.SiZE)
RVSBS
(H.CENT)
RV552
(PIN
AMP)
RV509
(V.CENT)
RVSS3(PIN
PHASE)
RV5S4
(H.SIZE)
(Component
side)
-
19
PVM-2130QM
RM-668
4-3.
HC BOARD ADJUSTMENT
4-4.
B BOARD ADJUSTMENTS
H.
CENTER Adjustment
(DIGITAL
RGB)
1.
Connect to the
digital RGB
output
connector of
a
microcomputer.
2.
Press to select
the RGB
mode.
3.
Turn the H.
CENT
VR (RV987-—
Rear
control
pane!)
to center
position.
4.
Connect the
oscilloscope
to pin of HC-2
connector
and pin
(T) of
HC-2
connector.
5. Adjust RV986
(H. CENT-2)
so that the phase differ-
ence level
is ±0.
Ipsec.
Y
Chroma
Adjustment
|
1. input
a
PAL
color bar signal.
Z
Connect
an oscilloscope to pin of
IC301,
and ad-
just so that chroma
component
is
minimum
on
pin
of
IC301
waveform while
tracking with
L451
(4.43
MHz).
3.
input a NTSC
(3. 58)
color bar
signal.
4.
Connect an oscilloscope
to pin of
I
C301
and
ad-
just
so that croma
component
is minimum
on pin
of
IC301
waveform
while tracking
with
L452.
COLOR BALANCE
Adjustment
|
1. Input a SECAM
color bar
signal and
set
PICTURE
to
maximum.
Press "RESET"
to set color
to standard
state.
Observe
blue output ITP33)
waveform
on
the osillo-
scope and
adjust L421
(B-Y)
so that
the black
portion
of
the color baristhe
same level
as the pedestal.
3.
Observe
blue output (TP31)
waveform
on
the oscillo-
scope and
adjust L405 (R-Y)
so that
the black portion
of the
color bar is the
same level
as the pedestal.
2.
3.
4.
3.
4.
-
20
-
connector
of
a
r
control
panel)
HC-2
connector
'te
phase
differ-
i l-^
—5 ±0.
1
ps
IV
DC
-IV
DC
86
(H. CE
NT-21
87 (H. CENT
VR)
PVM-2130QM PVM-2130QM
RM-668
RM-668
4-4.
B BOARD ADJUSTMENTS
/ Chroma Adjustment
|
1.
Inpu
t a
PAL
color bar signal.
Z Connect an oscilloscope
to pin of
IC301,
and ad-
just so
that chroma
component
is minimum on pin
of
IC301 waveform
while
tracking with
L451
(4.43
MHz).
3.
input
a
NTSC
(3. 58)
color bar signal.
4. Connect an oscilloscope
to pin
of
IC301
and ad-
just so that croma
component is
minimum
on
pin
of IC301 waveform
while tracking
with
L4S2.
COLOR BALANCE
Adjustment
|
1. input
a
SECAM color
bar signal
and set PICTURE
to
maximum.
Press "RESET"
to
set color
to standard
state.
2. Observe blue
output ITP33) waveform
on the
osillo-
scope and adjust L421
(B-Y)
so that
the black
portion
of
the color bar is the same level
as the
pedestal.
3.
Observe blue output (TP31)
waveform
on
the oscillo-
scope and adjust L405 (R-Y)
so that
the black
portion
of
the color bar is the
same level
as
the
pedestal.
ANTI-PAL, LINE
CRAWLING Adjustment
|
1.
Input
a
PAL color
bar signal
and set
PICTURE
to
maximum.
Press
"RESET" to set
COLOR,
HUE and
BRT
to
stan-
dard state.
2.
Confirm
that
there is no
color on
the first
anti-PAL
signal
frames at
the right
and
left of the picture.
If sides
while
tracking
with
R V303.
3.
Adjust T301
(DAT)
for
minimum line crawling.
4.
Confirm
the
anti-PAL
adjustment in
2,
and repeat
3,
and 1
if
necessary.
APC Ad
justmen t
|
443
adjustment
1.
Input a
PAL
color bar signal.
2.
Short pin (n) and pin
on IC30t.
3.
Adjust CT443
to
get color sync.
3. 58
adjustment
4.
Input
a
NTSC
(3. 58
MHz) color bar signal.
5.
Adjust CT358 to get color sync.
ACC, HUE CENT
Adjustment
|
1.
Input
a
PAL color bar signal and set
PICTURE maxi-
mum.
2.
Adjust
R\/302 (ACC ADJ)
so that blue output
(TP33)
waveform
is
as shown in figure.
@
_
© ®
@
2.2
±0.3Vp-p
-.
1-
3.
Input
a
NTSC
(3.58 or
4.43)
color bar
signal and set
PICTURE to
maximum.
Press "RESET"
to
set COLOR, HUE and
BRIGHT-
NESS
to
standard state.
4.
Adjust
RV318
(S.
HUE)
so
that blue output
(TP33)
waveform
is as
shown in figure.
B
Board
L452 L451
RV318
RV303
O
CT443\
_
*0
T301
CT358
TP31
RV302
o
L405
@
IC301
1
CT358
(3.58)
CT443 (4.43)
L405
(R-Y)
L421 (B-Y) L451 (4.43 MHz)
L452 (Y/CHROMA)
RV302 (ACC)
RV303
(<I>)
RV318(S.
HUE)
T301
(DAT)
oscilloscope
4-5.
SAFETY
CHECK ADJUSTMENT
HOLD DOWN
ADJUSTMENT
(*R53I)
1. Turn
the POWER
switch
ON, and receive
entirely
white
signals
and
set
the PICTURE
and
BRIGHTNESS
control
to
maximum.
2. Confirm
that
the voltage
of
the IC1510
(7)
pin is
more
than
15.78V DC
when
the set is
operating
normally
with
120V AC
supply.
3.
Adjust
ABL current
to
1400±30pA with
PICTURE
and
BRIGHTNESS,
(ammeter
3.0mA
derange)
4.
Confirm
that
there
is less than
18.35V
DC where
by
the
raster
disappears
during
operation
of
hold-down
circuit.
(HOLD
DOWN
check
point of
IC1510
(t)
pin)
5. Adjust
ABL
current
to
210
t
3
pA with
PICTURE
and
BRIGHTNESS,
(ammeter
0.3mA
dc range)
6. Confirm
that there
is
less
than 19.25V DC where
by the
raster
disappears during operation of hold-down circuit.
(HOLD
DOWN check point of IC1510(^pin)
Note: If
the hold-down
circuit
starts
operating in the
above
case,
switch OFF
the
POWER of the set
immediately.
7.
If
above
steps
is
not satisfied,
select resistance
value
of
R597
and repeat above steps 1
through
6.
T604
FBT
step
®
®
ammeter
0.3mA
dc
range
SECTION
DIAGRAIV
5-1.
CIRCUIT
BOARDS
LOCATION
20
-
-
21
-
]
sf
PICTURE
to
nd
BRT
to
stan-
ce
first
anti-PAL
picture.
If sides
rawling.
2,
and
repeat
3,
mi.
PICTURE
maxi-
e
output ITP33)
o-p
tr
signal and set
:
and
BRIGHT-
?
output
(TP33)
PVM-2130QM
PVM-2130QM
PVM-2130QM
RM-668
RM-668 RM-668
B
Board
L452
L451
«.303
M
^
O
CT443
_
"O
T301
CT358
L421
TP31
RV302
o
L405
@
IC301
\
CT358
(3.58)
CT443
(4.43)
L405 (R-YI
L421
IB-Y)
L451
(4.43 MHz)
L452
(Y/CHROMA)
RV302
(ACC)
RV303
((t>)
RV318
IS.
HUE)
T301
(DAT)
V,
(Component
side)
oscilloscope
4-5.
SAFETY
CHECK ADJUSTMENT
HOLD DOWN
ADJUSTMENT
(*R531)
1. Turn
the POWER
switch
ON, and
receive
entirely white
signals
and
set the PICTURE
and
BRIGHTNESS
control
to maximum.
2. Confirm
that the
voltage of
the IC1S10
(J)
pin is more
than
15.78V DC when
the
set is
operating
normaily
with 120V AC
supply.
3. Adjust ABL
current
to
1400±30gA with
PICTURE
and
BRIGHTNESS,
(ammeter
3.0mA
dc range)
4. Confirm
that there
is less
than
18.35V DC where
by
the raster
disappears
during
operation of
hold-down
circuit.
(HOLD
DOWN
check
point
of ICI5I0
@
pin)
5. Adjust
ABL
current to
210
t
3
pA
with PICTURE
and
BRIGHTNESS,
(ammeter
0.3mA
dc range)
6.
Confirm
that
there is less than 19.25V DC
where
by the
raster disappears during
operation of hold-down circuit.
(HOLD DOWN check point of IC1510(^pin)
Note: If the hold-down circuit starts
operating in the
above case, switch
OFF
the
POWER of the set
immediately.
7.
If
above steps is not satisfied, select
resistance
value
of
R597 and repeat above steps 1 through 6.
T604
FBT
J
step
®-<^
ammeter
0.3mA dc
range
SECTION
5
DIAGRAMS
5-1.
CIRCUIT
BOARDS LOCATION
-
21
-
22
-
-
23
-
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