Text preview for : PVM-14L1.pdf part of Sony PVM-14L1 76 page manual (1st edition rev. 1) for Sony 14 & 20 inch Trinitron color video monitor (NTSC TV) model numbers PVM-14L1, PVM-14L1MDE, PVM-20L1, SSM-14L1 & SSM-20L1
Back to : PVM-14L1.part1.rar | Home
TRINITRON® COLOR VIDEO MONITOR
PVM-14L1
PVM-14L1MDE
PVM-20L1
SSM-14L1
SSM-20L1
SERVICE MANUAL
1st Edition (Revised 1)
! WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
! WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
! AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l'entretien. Afin
de réduire les risques de décharge électrique, d'incendie ou de blessure n'effectuer que les
réparations indiquées dans le mode d'emploi à moins d'être qualifié pour en effectuer d'autres.
Pour toute réparation faire appel à une personne compétente uniquement.
. Equipment energized from an external electrical power source :
Class I Equipment
. Degree of protection against electric shock :
No applied part
. Mode of operation :
Continuous operation
WARNING!! ATTENTION!!
AN INSULATED TRANSFORMER SHOULD BE USED DURING AFIN D'ÉVITER TOUT RISQUE D'ÉLECTROCUTION
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE- PROVENANT D'UN CHÂSSIS SOUS TENSION, UN
CAUSE OF LIVE CHASSIS. TRANSFORMATEUR D'ISOLEMENT DOIT ETRE UTILISÉ LORS
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED DE TOUT DÉPANNAGE.
TO THE AC POWER LINE. LE CHÂSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ Á L'ALIMENTATION SECTEUR.
SAFETY-RELATED COMPONENT WARNING !! ATTENTION AUX COMPOSANTS RELATIFS Á LA
SÉCURITÉ!!
COMPONENTS IDENTIFIED BY A ! MARK ON THE SCHEMATIC
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE LES COMPOSANTS IDENTIFIÉS PAR UNE MAPQUE ! SUR
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO- LES SCHÉMAS DE PRINCIPE, LES VUES EXPLOSÉES ET LES
NENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR LISTES DE PIECES SONT D'UNE IMPORTANCE CRITIQUE
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE LES
LISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITI- REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
CAL TO SAFE OPERATION ARE IDENTIFIED IN THIS MANUAL. NUMÉRO DE PIÈCE EST INDIQUÉ DANS LE PRÉSENT MANUEL
FOLLOW THESE PROCEDURES WHENEVER CRITICAL COM- OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY. LES
PONENTS ARE REPLACED OR IMPROPER OPERATION IS RÉGLAGES DE CIRCUIT DONT L'IMPORTANCE EST CRITIQUE
SUSPECTED. POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT
IDENTIFIÉS DANS LE PRÉSENT MANUEL. SUIVRE CES
PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE
COMPOSANTS CRITIQUES, OU LORSQU'UN MAUVAIS
FONCTIONNEMENT EST SUSPECTÉ.
PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
Table of Contents
1. Service Overview
1-1. Appearance Figure (14 inch) ....................................................................... 1-1
1-2. Board Locations (14 inch) ........................................................................... 1-1
1-3. Disassembly (14 inch) ................................................................................. 1-2
1-3-1. Cabinet and Rear Panel (14 inch) ............................................... 1-2
1-3-2. Q Block Assembly and Q Board (14 inch) ................................ 1-3
1-3-3. A Board Assembly (14 inch) ...................................................... 1-4
1-3-4. C Board (14 inch) ....................................................................... 1-4
1-3-5. Picture Tube and Bezel Complete Assembly (14 inch) ............. 1-5
1-3-6. Anode Cap (14 inch) .................................................................. 1-6
1-4. Appearance Figure (20 inch) ....................................................................... 1-7
1-5. Board Locations (20 inch) ........................................................................... 1-7
1-6. Disassembly (20 inch) ................................................................................. 1-8
1-6-1. Cabinet and Rear Panel (20 inch) ............................................... 1-8
1-6-2. Q Block Assembly and Q Board (20 inch) ................................ 1-9
1-6-3. A Board (20 inch) ..................................................................... 1-10
1-6-4. C Board (20 inch) ..................................................................... 1-10
1-6-5. Picture Tube and Bezel Complete Assembly (20 inch) ........... 1-11
1-6-6. Anode Cap (20 inch) ................................................................ 1-12
1-7. Warning on Power Connection ................................................................. 1-12
2. Set-up Adjustment
2-1. Equipment Required .................................................................................... 2-1
2-2. Preparations (1) ........................................................................................... 2-1
2-3. Preparation (2). Initialization ..................................................................... 2-6
2-4. Writing Model Data .................................................................................... 2-6
2-5. Picture Output ............................................................................................. 2-6
2-6. Landing Adjustment (1) .............................................................................. 2-6
2-7. Deflection Yoke Neck Rotation Adjustment .............................................. 2-8
2-8. Convergence Adjustment (1) ...................................................................... 2-9
2-9. Convergence Adjustment (2) .................................................................... 2-10
2-10. Landing Adjustment (2) ............................................................................ 2-10
2-11. Focus Adjustment ...................................................................................... 2-10
2-12. White Balance Adjustment ....................................................................... 2-11
2-12-1. Sub Bright Adjustment ............................................................. 2-11
2-12-2. White Balance Adjustment [D65] ............................................ 2-11
2-12-3. White Balance Adjustment [D93] ............................................ 2-11
2-13. Deflection Adjustment .............................................................................. 2-12
2-13-1. 525 Vertical Deflection Adjustment ........................................ 2-12
2-13-2. 625 Vertical Deflection Adjustment ........................................ 2-13
2-14. Horizontal Deflection Adjustment ............................................................ 2-13
2-14-1. 525 Horizontal Deflection Adjustment .................................... 2-13
2-14-2. 625 Horizontal Deflection Adjustment .................................... 2-14
PVM-14L1/14L1MDE/20L1 1
SSM-14L1/20L1
2-15. Sub Contrast Adjustment .......................................................................... 2-14
2-16. Adjustment of NTSC Mode ...................................................................... 2-15
2-16-1. NTSC Composite Input ............................................................ 2-15
2-16-2. NTSC Y/C Input ...................................................................... 2-15
2-17. Adjustment of PAL Mode ......................................................................... 2-15
2-17-1. PAL Composite Input .............................................................. 2-15
2-17-2. PAL Y/C Input ......................................................................... 2-15
3. Safety Related Adjustment
3-1. +B Voltage Check ...................................................................................... 3-1
3-2. Protection Circuit Confirmation .................................................................. 3-1
3-2-1. HV Protector Circuit Confirmation ............................................ 3-1
4. Semiconductors ................................................................................. 4-1
5. Spare Parts
5-1. Notes on Repair Parts .................................................................................. 5-1
5-2. Exploded Views .......................................................................................... 5-2
5-3. Electrical Parts List ................................................................................... 5-10
6. Block Diagrams
Q, A (1/2), C ........................................................................................................... 6-1
A (2/2), DY ............................................................................................................. 6-2
7. Diagrams
7-1. Frame Schematic Diagram .......................................................................... 7-2
Frame ........................................................................................................ 7-2
7-2. Schematic Diagrams and Board Layouts .................................................... 7-3
Schematic Diagrams
Q ................................................................................................................ 7-4
A (1/3) ....................................................................................................... 7-5
A (2/3) ....................................................................................................... 7-6
A (3/3) ....................................................................................................... 7-7
C (14 Inch) .............................................................................................. 7-12
C (20 Inch) .............................................................................................. 7-14
Board Layouts
Q ................................................................................................................ 7-3
A ................................................................................................................ 7-8
C (14 Inch) .............................................................................................. 7-11
C (20 Inch) .............................................................................................. 7-13
2 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
Section 1
Service Overview
1-1. Appearance Figure (14 inch)
1-2. Board Locations (14 inch)
C
Q
A
PVM-14L1/14L1MDE/20L1 1-1
SSM-14L1/20L1
1-3. Disassembly (14 inch)
1-3-1. Cabinet and Rear Panel (14 inch)
1 Six nylon rivets
6 Remove the rear panel
4 Remove the cabinet in the direction of the arrow B.
in the direction of the arrow A.
A
B
3 Two case claw screws
(M 4 x 8)
5 Four screws
(+BVTP 4 x 16)
2 Two case claw screws
(M 4 x 8)
1-2 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
1-3-2. Q Block Assembly and Q Board (14 inch)
. Remove the cabinet and rear panel. (Refer to 1-3-1.)
CN204
CN201
1 Four screws
(+PS 4 x 8)
CN601
A
A
B
Push the two areas in the bottom of beznet in the direction of arrow A,
and pull the Q block assembly in the direction of the arrow B.
3 Q block assembly
4 Connector label
7 Two screws
(+PSW 3 x 10)
8 AC inlet
5 Two screws
(+PSW 3 x 10)
6 Connector panel
9 Q board
PVM-14L1/14L1MDE/20L1 1-3
SSM-14L1/20L1
1-3-3. A Board Assembly (14 inch)
. Remove the cabinet and rear panel. (Refer to 1-3-1.)
1-3-4. C Board (14 inch)
. Remove the cabinet and rear panel. (Refer to 1-3-1.)
1-4 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
1-3-5. Picture Tube and Bezel Complete Assembly (14 inch)
. Remove the cabinet and rear panel. (Refer to 1-3-1.)
. Remove the Q block assembly. (Refer to 1-3-2.)
. Remove the A board. (Refer to 1-3-3.)
. Remove the C board. (Refer to 1-3-4.)
1 Deflection yoke
2 Prepare a work bench on the cushion
and place the CRT and bezel assembly
on the work bench.
Cushion
3 Four self tapping screws (M5)
A
Cushion
Note: Bench
Prepare a work bench that can protect surface
of CRT and can withstand the weight of the CRT.
4 Remove the CRT shield assembly
in the direction of the arrow A.
B
6 Picture tube
B
Cushion
5 Remove the bezel complete assembly
in the direction of the arrow B.
PVM-14L1/14L1MDE/20L1 1-5
SSM-14L1/20L1
1-3-6. Anode Cap (14 inch)
n
Short-circuit the anode of the picture tube and the anode cap to the metal chassis, picture tube shield or carbon painted on
the picture tube, after removing the anode.
. Removal Procedure
c
b
a
b
a
Anode button
(1) Turn up one side of the rubber cap in the (2) Using a thumb, pull up the rubber cap (3) When one side of the rubber cap is
direction indicated by arrow a. firmly in the direction indicated by separated from the anode button, the
arrow b. anode-cap can be removed by turning
up the rubber cap and pulling up it in
. Handling Precautions the direction of the arrow c.
(1) Do not scratch the surface of anode cap with a sharp object.
(2) Do not press the rubber so hard that it damages the inside of
anode caps. A shatter-hook terminal is built into the rubber.
(3) Do not turn the foot of the rubber over.
The shatter-hook terminal will stick out or damage the rubber.
1-6 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
1-4. Appearance Figure (20 inch)
1-5. Board Locations (20 inch)
C
Q
A
PVM-14L1/14L1MDE/20L1 1-7
SSM-14L1/20L1
1-6. Disassembly (20 inch)
1-6-1. Cabinet and Rear Panel (20 inch)
1 Six nylon rivets
4 Remove the cabinet
in the direction of the arrow A.
6 Remove the rear panel
in the direction of the arrow B.
A
B
3 Two case claw screws
(M 4 x 8)
5 Four screws
(+BVTP 4 x 16)
2 Two case claw screws
(M 4 x 8)
1-8 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
1-6-2. Q Block Assembly and Q Board (20 inch)
. Remove the cabinet and rear panel. (Refer to 1-6-1.)
CN204 1 Four screws
CN601 (+PS 4 x 8)
CN201
A
A
B
Push the two areas in the bottom of beznet in the direction of arrow A,
and pull the Q block assembly in the direction of the arrow B.
3 Q block assembly
4 Connector label
7 Two screws
(+PSW 3 x 10)
8 AC inlet
5 Two screws
(+PSW 3 x 10)
6 Connector panel
9 Q board
PVM-14L1/14L1MDE/20L1 1-9
SSM-14L1/20L1
1-6-3. A Board (20 inch)
. Remove the cabinet and rear panel. (Refer to 1-6-1.)
CN002
CN501
CN502
CN602
2 Anode cap
CN3502
A 4 Remove the A board
in the direction of the arrow A.
1 PWB holder
5 Power switch button
3 Focus lead assembly
1-6-4. C Board (20 inch)
. Remove the cabinet and rear panel. (Refer to 1-6-1.)
1 C board
CN701
CN720
CN721
CN722
CN710
1-10 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
1-6-5. Picture Tube and Bezel Complete Assembly (20 inch)
. Remove the cabinet and rear panel. (Refer to 1-6-1.)
. Remove the Q block assembly. (Refer to 1-6-2.)
. Remove the A board. (Refer to 1-6-3.)
. Remove the C board. (Refer to 1-6-4.)
PVM-14L1/14L1MDE/20L1 1-11
SSM-14L1/20L1
1-6-6. Anode Cap (20 inch)
n
Short-circuit the anode of the picture tube and the anode cap to the metal chassis, picture tube shield or carbon painted on
the picture tube, after removing the anode.
. Removal Procedure
c
b
a
b
a
Anode button
(1) Turn up one side of the rubber cap in the (2) Using a thumb, pull up the rubber cap (3) When one side of the rubber cap is
direction indicated by arrow a. firmly in the direction indicated by separated from the anode button, the
arrow b. anode-cap can be removed by turning
up the rubber cap and pulling up it in
. Handling Precautions the direction of the arrow c.
(1) Do not scratch the surface of anode cap with a sharp object.
(2) Do not press the rubber so hard that it damages the inside of
anode caps. A shatter-hook terminal is built into the rubber.
(3) Do not turn the foot of the rubber over.
The shatter-hook terminal will stick out or damage the rubber.
1-7. Warning on Power Connection
Use a proper power cord for your local power supply.
United State, Canada Europe Japan
a)
Plug type LP-30B YP332
Female end LS-13 VM0303B YC-35
Cord type SB-SVT H05VV-F VCTF
Minimum cord set rating 10A/125V 10A/250V 7A/125V
Safety approval UL/CSA SEMKO, NEMKO, DEMKO, SEV, DENAN-HO
KEMA, EI (FIMKO), CEBEC, VDE, BS
a) Note : Use an appropriate rating plug which is applied to local regulations.
1-12 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
Section 2
Set-up Adjustment
2-1. Equipment Required 2-2. Preparations (1)
. Oscilloscope Service Mode
Tektronix 2465 or equivalent (with bandwidth of 350 This set is provided with a switch for service on the front
MHz) panel that can be used to make various adjustments. The
. VG (programmable video signal generator) operation method of this switch is explained in detail below.
VG-854 or equivalent
. Digital VOM 1. Entering the service mode
Advantest TR6845 or equivalent Simultaneously press the [ENTER] key and the
. Slide induction transformer [MENU] key shown on the display of the menu 3
. DC power supply seconds or more.
SIGNAL
n SIG · LEVEL...
DEF · WHITE BALANCE...
Start the following adjustments 5 minutes after the main DES
SYS
power is turned on. ENG
* In this chapter, [||||||] indicates the control items in the
service mode.
Example : [60|H-FREQ] 2. Operating the Service Mode
Select the desired service item with the [9], [0] key
and press the [ENTER] key to enter the adjustment
mode.
Press the [+] key to increase the adjustment value.
Press the [_] key to decrease the adjustment value.
Press the [ENTER] key to save the adjustment value.
Press the [MENU] key to cancel the entry.
3. Finishing the service mode
Simultaneously press the [ENTER] key and the
[MENU] key shown on the display of the menu 3
seconds or more.
PVM-14L1/14L1MDE/20L1 2-1
SSM-14L1/20L1
4. Executing FACTORY LOAD FACTORY SET
If the adjustment data is damaged or lost by some If the following circuit board is replaced or the following
reasons, you can restore the default factory adjustment IC on the respective board is replaced, perform the follow-
data by executing FACTORY LOAD as described ing settings.
below. A board, IC001, IC003
Select the following sub menus from the Service Menu 1. Select the following sub menus from the Service Menu
in the order of : [SYSTEM] [FACTORY...] in the order of : [SYSTEM]-[MAINTENANCE ID]
[LOAD...] to read the default factory data. If the and type 111.
default factory data is damaged or the ROM is re- 2. If the IC003 is replaced, select the following sub
placed without executing FACTORY SAVE as menus from the Service Menu : [ENGINEER]-
described in the following paragraph, you cannot [CLEAR NVM ON A] and write data.
execute FACTORY LOAD. 3. Select the following sub menus from the Service
5. Executing FACTORY SAVE Menu in the order of : [SYSTEM]-[MODEL INCH],
This operation is to write the FACTORY LOAD data [SYSTEM]-[MODEL TYPE] and write the model data
into the factory data area in the memory. of each model in the [MODEL TYPE] referring to
Select the following sub menus from the Service Menu table 2-2.
in the order of : [SYSTEM] [MAINTENANCE ID] 4. Perform all adjustment items of the [SIGNAL] menu
and type 111. Then select the following sub menus and of the [DEFLECTION] menu.
from the Service Menu in the order of : [ENGINEER] 5. Upon completion of adjustment, select the menus
[FACTORY SAVE] to write the factory data in the [ENGINEER]-[FACTORY SAVE] to save the
memory. FACTORY SAVE is protected from miss adjustment data.
operation so that FACTORY SAVE cannot be execut-
ed unless MAINTENANCE ID is set.
2-2 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
Service Mode screen display
SIGNAL LEVEL
SIG · LEVEL... SIG · SUB BRIGHT 4
DEF · WHITE BALANCE... DEF · LUMI DELAY 11
DES DES · SUB CHROMA 3
SYS SYS · SUB PHASE 6
ENG ENG · PEAK FREQ 0
· SCO 0
· WHITE PEAK 0
· SUB SHARP 15
WHITE BALANCE
SIG · SUB CONTRAST 9
DEF · CDL 4
DES · SUB BRIGHT 4
SYS · COLOR TEMP D65
ENG · ADJUST
· ADJUST GAIN...
· ADJUST BIAS...
DEFLECTION RASTER H
SIG · RASTER H... DEFLECTION
DEF · RASTER V... SIG · H SIZE 47
DES · GEOMETRY... DEF · LEFT H BLK 0
SYS DES · RIGHT H BLK 0
ENG SYS · H POSITION 46
ENG
RASTER V
DEFLECTION
SIG · V SIZE 45
DEF · V CENTER 45
DES · V SCROLL 13
SYS · V SLOPE 31
ENG · V ZOOM 31
GEOMETRY
DEFLECTION
SIG · V LINEARITY 30
DEF · S CORRECTION 11
DES · PIN AMP 57
SYS · PIN PHASE 0
ENG · U CORNER PIN 19
· L CORNER PIN 37
· V ANGLE 32
· V BOW 29
PVM-14L1/14L1MDE/20L1 2-3
SSM-14L1/20L1
n
When changing DESIGN ITEMS 1/2 and 2/2, set the MAINTENANCE ID to 111 in SYSTEM.
DESIGN 1/2 COLOR DECODER 0
SIG · COLOR DECODER 0... 4 SIG · CB... 0
DEF · COLOR DECODER 1... 11 DEF · ALC... 1
DES · AV SWITCH 0... 3 DES · MUS 0
SYS · AV SWITCH 1... 6 SYS · MAT 1
ENG · SYNCHRONIZATION 0... 0 ENG · CM 3210 8
· SYNCHRONIZATION 1... 0
· DEFLECTION... 0
· SOUND 0... 15
COLOR DECODER 1
SIG · FC0 0
DEF · BPS 0
DES
SYS
ENG
AV SWITCH 0
SIG · INABC 3
DEF · CMB10 1
DES · STR 0
SYS
ENG
AV SWITCH 1
SIG · CS2ABC 0
DEF · CS1ABC 7
DES · FB0 0
SYS
ENG
SYNCHRONIZATION 0
SIG · VID 0
DEF · VIM 0
DES · STB 1
SYS · POC 0
ENG · F0AB 3
· HP2 0
· SDC 0
SYNCHRONIZATION 1
SIG · NCIN 0
DEF · DL 0
DES · FORFS 2
SYS · OSO 1
ENG · FSL 0
· STM 0
DEFLECTION
SIG · HCO 0
DEF · EVG 1
DES · AVG 0
SYS · SBL 0
ENG · XDT 1
· DFL 1
· OSVE 0
SOUND 0
SIG · AVL 0
DEF · SM 0
DES
SYS
ENG
2-4 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
n
When changing DESIGN ITEMS 1/2 and 2/2, set the MAINTENANCE ID to 111 in SYSTEM.
DESIGN 2/2 DESIGN 2/2
SIG · CONTROL 0... SIG · CL3210 1
DEF · CONTROL 1... DEF · AKB 0
DES · CONTROL 2... DES · RBL 0
SYS · FEATURES 0... SYS · IE2 0
ENG · FEATURES 1... ENG
DESIGN 2/2
SIG · HBL 1
DEF · YUV10 0
DES · TFR 0
SYS · SOY 0
ENG · RGBL 0
· SWO 0
DESIGN 2/2
SIG · PWL 1
DEF · FBC 0
DES · CLD 0
SYS
ENG
DESIGN 2/2
SIG · BKS 0
DEF · BLS 0
DES · COR10 3
SYS · SVM10 0
ENG
DESIGN 2/2
SIG · WS10 0
DEF · VMA10 0
DES · RP010 0
SYS · EVB 1
ENG
SYSTEM SYSTEM
SIG VERSION XXX SIG · LOAD...
DEF · MODEL INCH 20 or 14 or 9 DEF · STANDARD ...
DES · MODEL TYPE WW EXCEPT J WW EXCEPT J or J DES LOAD FACTORY DATA
SYS · AGING MODE SYS [ENTER]: ENTER
ENG · MUTE TIME (Ver 1.2 or more) ENG
· FACTORY... [MENU]: CANCEL
· MAINTENANCE ID
ENGINEER
SIG · FACTORY SAVE...
DEF · CLEAR NVM ON A...*
DES · COMB FILTER AUTO* SAVE FACTORY DATA
SYS [ENTER]: ENTER
ENG (Ver 1.2 or more) MAKE USER SETTING
[MENU]: CANCEL STANDARD
[ENTER]: ENTER
[MENU]: CANCEL
* MAINTENANCE ID = 111 selection possible
CLEAR NVM ON A BOARD
[ENTER]: ENTER
[MENU]: CANCEL
PVM-14L1/14L1MDE/20L1 2-5
SSM-14L1/20L1
2-3. Preparation (2). Initialization 2-5. Picture Output
* Supply composite video signal as shown in Table 2-1. 1. AC input voltage setting
1. Input VIDEO signals and AUDIO signals to respective
Signal Details of signal Standard terminals on the connector panel.
level 2. Set the slide induction transformer AC voltage as
P-W
shown in Table 2-3.
Composite 358NT 100 % white 0.714 V
Model name Voltage
video 75 % white 0.536 V
PAL 100 % white 0.7 V PVM-14L1 AC 100 V to 240 V ±10 %
PVM-20L1
75 % white 0.525 V
SSM-14L1
Voice/sound _5 dBu 0.436Vrms
SSM-20L1
Table 2-1
Table. 2-3
2-4. Writing Model Data
2-6. Landing Adjustment (1)
1. Select the following sub menus from the Service Menu
in the order of : [SYSTEM] [MODEL INCH], 1. CONTRAST... MAX
[SYSTEM] [MODEL TYPE] and write the model BRIGHT... Conspicuous position
data of each model in the [MODEL TYPE] referring 2. Roughly adjust the white balance, G2, and conver-
to table 2-2. gence.
3. Switch the video signal generator output signal to
Model name Model type Model inch
green only.
PVM-14L1 J 14 4. Move back the DY backward (in the direction toward
PVM-14L1 WW EXCEPT J 14 neck).
SSM-14L1 J 14 5. Adjust the purity knob so that the green will come to
SSM-14L1 WW EXCEPT J 14 the center of the screen. Make R and B almost
identical. (Fig. 2-1)
PVM-20L1 J 20
6. Switch to B only, R only, and G only and verify each.
PVM-20L1 WW EXCEPT J 20
7. Bring the deflection yoke gradually forward and adjust
SSM-20L1 J 20 the deflection yoke so that R and B on both sides of
SSM-20L1 WW EXCEPT J 20 the screen will be green. (Fig.2-2 Fig. 2-3)
Table. 2-2 8. If the deflection yoke comes forward too much, the
pattern shown in Fig.2-4 will appear. If so, move the
2. Select the following sub menus from the Service Menu deflection yoke backward. (Fig.2-4 Fig.2-3)
in the order of : [SIGNAL] [WHITE BALANCE] 9. Switch the signal generator output signal to the BLUE
and type the following data in [COLOR TEMP]. only color and confirm the screen. (Fig. 2-6)
WW EXCEPT J D65 10. Switch the signal generator output signal to the RED
J D93 only color and confirm the screen. (Fig. 2-9)
11. When two colors are mixed, set the mixed color as the
* Standard inspection state
standard, and repeat operations 6 and 7.
Unless otherwise specified in this manual, make adjust-
12. Switch to an all-white signal and check the uniformity.
ment under the following conditions.
13. When the deflection yoke position is determined,
VOLUME 0
fasten it with the DY screw.
CONTRAST 80
BRIGHTNESS 0
CHROMA 50
PHASE 0
ASPECT RATIO 4 : 3
2-6 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
Fig. 2-1 20 inch
R G B A' = A
A A'
R G B G B G R
Fig. 2-2 Fig. 2-3 Fig. 2-4
G B R B R B G
Fig. 2-5 Fig. 2-6 Fig. 2-7
Fig. 2-11
B R G R G R B Purity control
Fig. 2-8 Fig. 2-9 Fig. 2-10
Purity
14 inch
DY (Deflection yoke)
Fig. 2-12
Fig. 2-11
Purity control
Purity
DY (Deflection yoke)
Fig. 2-12
PVM-14L1/14L1MDE/20L1 2-7
SSM-14L1/20L1
2-7. Deflection Yoke Neck Rotation 3. The following patterns cannot be corrected by turning
Adjustment the neck. (Figs.2-19, 2-20, and 2-21)
1. If there are mis-convergence on both sides of X and Y RGB
axes, move the DY neck in the direction of the arrow * Gun rotation
so that the degree of mis-convergence satisfies the R R The X-axis and Y-axis
allowable range of specification over the entire screen. G G beams are distorted on
B B both sides.
RGB
Fig. 2-19
* HCR Large (small)
G (G) (G) G The horizontal portion of the
G raster is wider (narrower)
R R than that of the RB raster on
B B both sides of the screen.
Fig. 2-20
G * VCR Large (small)
RB
(G) The vertical portion of the
G raster is wider (narrower)
(G) than that of the RB raster on
RB both sides of the screen.
G
Fig. 2-21
2. Insert the wedge between the deflection yoke and CRT
funnel to lock the deflection yoke. (Fig.2-18)
Inch 20 Inch 14
Fig. 2-18
2-8 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
2-8. Convergence Adjustment (1) 4. For HMC, use the six poles Mg to adjust the R and B
dots so that they will be symmetrical horizontally with
1. Input a dot pattern signal. respect to the G dot. (Fig. 2-24)
CONTRAST... Conspicuous position I I'
BRIGHT... 0
R G B
2. Align the horizontal R, G, and B dots at the center of A B
the screen by adjusting RV760 on the C board. (H-
A A'
STAT adjustment)
* When H-CENT is changed after H-STAT adjustment,
readjust H-STAT. (H-STAT will change by means of
6-pole magnet Control the six poles Mg so
H-CENT VR.) that A=A'. Maintain I=I'
Change the opening when moving the Mg.
degree of the six poles Mg
3. Using V STAT Mg, align the top and bottom of R, G to control the HMC.
and B on center of the screen.
Fig. 2-24
* After V-STAT adjustment, paint-lock the knob.
5. For VMC, use the six poles Mg to adjust the R and B
V-STAT Mg knob
dots so that they will be symmetrical vertically with
While keeping the angles A and B equal (I = I'), align the
respect to the G dot. (Fig. 2-25)
vertical convergence.
I I' R G B
Do not change. (Top)
A B
X (Bottom)
6-pole magnet
For VMC control, turn Make adjustment so
Y
knob to the right or left that the gap will be the
Fig. 2-22 Good example without changing their same at the top and bottom.
opening degree of the
six poles Mg.
If the A and B knobs are not symmetrical (I I'), the focus Fig. 2-25
may deteriorate, beam striking or other adverse effects may
occur. 6. Repeat the adjustment steps from 2 through 5.
I I' * The above adjustment may affect the landing, so after
adjustment, check the landing again.
A B
7. Paint-lock the knobs after adjustment.
X
Y
Fig. 2-23 Bad example
PVM-14L1/14L1MDE/20L1 2-9
SSM-14L1/20L1
2-9. Convergence Adjustment (2) 2-10. Landing Adjustment (2)
1. Attach the wobbling coil of allowance checker to neck
YCH (For 14 inch) XCV
R G B
ass'y.
B 2. Input green flat field signal to LINE A.
G
R 3. Turn on the main power of the monitor, and degauss
CRT screen with a degausser.
TLV (14 inch: VR, 20 inch: compensation plate) 4. Receive white flat field signal, and set brightness to 0,
R contrast to 80.
G
B
5. Make sure that there is no flicker when changing input
R
signals among G, B, and R signals.
G
B 6. Select G signal and adjust the purity.
TLH (For 14 inch)
7. In case that flicker occurs in a flat field signal, adjust
RGB BGR with Mg.
8. When attaching a Mg, it should be on a centre line
between CRT and the mislanding area.
9. Rotate the Mg to eliminate the mislanding.
10. Confirm that there is no mislanding on the other
Fig. 2-26 Convergence compensation VR, coil, and colours.
compensator 11. Remove the air-core coil. Check uniformity in white
flat field signal.
n 12. Lock purity with white paint.
When adjustment is insufficient, use permalloy. 13. Confirmation after Mg is attached.
After the adjustment, use paint lock. a. Deflection distortion
b. Landing after degaussing CRT
1. Input a crosshatch signal. c. Convergence
2. Adjust TLV, YCH VR of DY, XCV coil to minimize d. Attach Mg to DY with bond.
mis-convergence.
When the right convergence is not gotten even after 2-11. Focus Adjustment
adjustment described above, use the permalloy sheet to
adjust and fix the permalloy with RTV. 1. Input 480/60I cross hatch-signal.
2. Adjust the focus so that the center of screen is the best.
14 inch RV750 (C board)
20 inch VR on the upper side FBT
3. Input 480/60I entire white signal and ensure the
uniformity of entire screen.
Specification : 4 JND or less
2-10 PVM-14L1/14L1MDE/20L1
SSM-14L1/20L1
2-12. White Balance Adjustment 2-12-3. White Balance Adjustment [D93]
2-12-1. Sub Bright Adjustment 1. Receive window pattern signal.
2. Set the COLOR TEMP to D93.
1 Receive Gray Scale pattern signal. 3. Adjust the D93 white balance within standard (de-
* Gray scale : 0, 5, 10, 15 IRE (4 Steps) scription below) using the resistor [R DRIVE] and [B
2. Set the following items at PICT/SOUND CTRL. DRIVE] at SERVICE MODE [SIGNAL]-[WHITE
CONTRAST 8 MIN BALANCE]-[AJUST GAIN] .
BRIGHTNESS 8 0 (CENTER)
3. Adjust SUB BRIGHT using the resistor of [SUB X Y
BRIGHT] at SEVICE MODE [SIGNAL] - [WHITE D93 283 298
BALANCE].
Check 0 and 5 IRE section of Gray Scale is completely Switch the item R 8 G 8 B with [ENTER], and
cut off and 10 IRE section of it lights faintly. (If not change the data with [+]/[_].
readjust it.) 4. Change over to all white signal and lower signal level,
set brightness to 3cd/m2.
2-12-2. White Balance Adjustment [D65] 5. Adjust the D65 white balance within standard (de-
scription below) using the resistor [OFFSET R] and
1. Set the COLOR TEMP to D65. [OFFSET G] at SERVICE MODE [SIGNAL]-
2. Receive window pattern signal. [WHITE BALANCE]-[AJUST BIAS] .
3. Adjust the D65 white balance within standard (de-
scription below) using the resistor [R DRIVE] and [B X Y
DRIVE] at SERVICE MODE [SIGNAL]-[WHITE D93 283 298
BALANCE]-[AJUST GAIN].
Switch the item R 8 G with [ENTER], and change
X Y the data with [+]/[_].
D65 313 329 6. Repeat the manual 2 to 5 until be able to adjust GAIN
side and BIAS side to the same value.
Switch the item R 8 G 8 B with [ENTER], and
change the data with [+]/[_].
4. Change over to all white signal and lower signal level ,
set brightness to 3 (+1/_0) cd/m2.
5. Adjust the D65 white balance within standard (de-
scription below) using the resistor [OFFSET R] and
[OF