Sony Trinitron PVM-14L3 User manual

SERVICE MANUAL
MODEL DEST.
PVM-14L3 AEP SCC-G62L-A
PVM-14L4 AEP SCO-G62U-A
PVM-20L4 AEP SCC-GE2K-A
MODEL peer, Coase NO.
TRINITRONe COLOR VIDEO MONITOR
SONY.

ASS
TOVIAT WH, V-EABH CT.
BERN, COVIAYVICHRMANERECRE, AR, EMRELTS CBHOAK,
APPR DIES T EMBDET,
FEREAWISKY, P-EAhL-CMY PERG RRHBOATRAC KEW.
A, 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.
A WARNUNG
Die Anleitung ist nur fir qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dirfen nur von qualifiziertem Fachpersonal ausgeftihrt 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 dirfen nur von Personen ausgefiihrt werden, die eine spezielle Befahigung
dazu besitzen.
A\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 & moins d’étre qualifié pour en effectuer d'autres.
Pour toute réparation faire appel a une personne compétente uniquement.
WARNINGI!
AN INSULATED TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
‘COMPONENTS IDENTIFIED BY AAAMARK ON THE SCHEMATIC
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE
CRITICAL TO SAFE OPERATION, REPLACE THESE COMPO-
NENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION!!
AFIN D'EVITER TOUT RISQUE D’ELECTROCUTION
PROVENANT D'UN CHASSIS SOUS TENSION, UN
TRANSFORMATEUR D'ISOLEMENT DOIT ETRE UTILISE LORS
DE TOUT DEPANNAGE.
LE CHASSIS DE CE RECEPTEUR EST DIRECTEMENT
RACCORDE A L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS A LA
SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE MAPQUE 4. SUR
LES SCHEMAS DE PRINCIPE, LES VUES EXPLOSEES ET LES
LISTES DE PIECES SONT D'UNE IMPORTANCE CRITIQUE
POUR LA SECURITE DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMERO DE PIECE EST iNDIQUE DANS LE PRESENT
MANUEL OU DANS DES SUPPLEMENTS PUBLIES PAR SONY.
PvM-t4La/14L4/2014

Table of Contents
1. Service Informations
1-1.
1-2.
1-3.
1-4-1,
1-4-2,
1-4-3,
1-4-4.
1-4-5,
1-4-6,
1-4-7,
1-4-8,
Board Layout (14 inch)
Disassembly (14 inch)...
1-2-1,
). Removal of Anode Cap...
. G Board Removal (14 inch)
. Speaker Removal (14 inch)
. Service Position (14 inch) ...
Board Layout (20 inch)
i-4, Disassembly (20 inch’
. Removal of Anode Cap...
. G Board Removal (20 inch)
. Picture Tube Removal (20 inch)
. Speaker Removal (20 inch)
}. Service Position (20 inch)
Top Cover Removal (14 inch)
Bezel Assy Removal (14 inch)
H1 Board Removal (14 inch)
H2 Board Removal (14 inch)
J, D1 and D Boards Removal (14 inch)
C Board Removal (14 inch) ...
B Block Assy Removal (14 inch
K, T, B1, M and B Boards Removal (14 inch)
Q Block Removal (14 inch) ....
Picture Tube Removal (14 inch’
Top Cover Removal (20 inch)
Bezel Assy Removal (20 inch:
HA Board Removal (20 inch)
HB Board Removal (20 inch)
J, Di and D Boards Removal (20 inch)
C Board Removal (20 inch)
B Block Removal (20 inch).
K, T, B1, M and B Boards Removal (20 inch) .
Q Block Assy Removal (20 inch)
2. Set-up Adjustment
2-1. Equipment Required.
2-2, Preparations (1) .
2-3. Preparation (2). Initialization ..
2-4. Writing Model Data ..
2-5. Picture Output ...
2-6. Landing Adjustment..
PYMbiaiataLaects

2-7,
2-8.
2-9,
2-10,
2-41,
2-12,
2-13.
2-14,
2-15.
2-16
Convergence Adjustment (1) ....
Deflection Yoke Neck Rotation Adjustment
Convergence Adjustment (2) ..
G2 Adjustment ...
White Balance Adjustment .....
Blue-only White Balance Adjustment ...
SUB BRIGHT, SUB CONTRAST Adjustment (15 K)
SUB BRIGHT, SUB CONTRAST Adjustment (33 K)
White Balance Interference Correction Adjustment
2-15-1. NTSC Composite Adjustment...
2-15-2, PAL Composite Adjustment
2-15-3. COMPONENT Adjustment ..
2-15-4, SDI Adjustment.
2-15-5. HD and SDI Adjustments.
Focus Adjustment...
3. Electrical Adjustments
3-1.
3-2.
3-3.
Equipment Required...
B Board Adjustments ..
3-2-1. Preparations
3-2-2, 15k YPBPR SMPTE (601) Signal Adjustment
3-2-2-1, Black Level Adjustment...
3-2-2-2, CHROMA Leak Adjustment
3-2-2-3. MATRIX Adjustment
3-2-3. 15k YPBPR BETACAM SETUP.
0 Signal Adjustment
3-2-4. 15k YPBPR BETACAM SETUP
7.5 Signal Adjustment
3-2-5. 33k YPBPR SMPTE (709) Signai Adjustment
{Applicable for PYM-D14L5J/D20L5I/14L5/20L5 only)
B1 Board Adjustments
3-3-1. Preparation
3-3-2. Y OUT Level Adjustment (BYPASS Mode)
3-3-3. Clamp Pulse Width Adjustment (NTSC)...
3-3-4. Burst Gate Pulse Width Adjustment (NTSC)
3-3-5. 3.58 FO Adjustment (NTSC)...
3-3-6. Phase Adjustment (NTSC)
3-3-7, Level Adjustment (NTSC)
3-3-8. Burst Gate Pulse Width Adjustment (PAL)
3-3-9, 4.43 FO Adjustment (PAL)
3-3-10, PAL B-Y Phase Adjustment
3-3-1. PAL Phase Adjustment (Normal)
3-3-12, Level Adjustment (PAL).......
3-3-13. Level Adjustment (NTSC 443) .....
PVM-14L9/14L4/2014

P¥Md-14tgr141.¢/20L4
3-3-14. Clamp Pulse Width Adjustment (SECAM)
15. H. Pulse Width Adjustment (SECAM) ...
3-3-16. Level Adjustment (SECAM).
4. Semiconductors
5. Spare Parts
5-1. Notes on Repair Parts .....
5-2. Exploded Views
5-3, Electrical Parts List
6. Block Diagrams
Overall (1/2)
Overall (2/2
Q (42), B (1/5), T (1/2), K
B (2/5)
B G/5)
Q (2/2), B (4/5, 5/5), M, T (2/2), H] (4L)/HA (20L), H2 (14L)/HB (20L) ..
Bl
C.D, DI, DY
GJ
7. Diagrams
Th
7-2, Schematic Diagrams and Printed Wiring Boards...
Printed Wiring Boards

Schematic Diagrams
Q (12) errvses
Q (2/2)
Te,
Bs)
B (24)
B (3/5)
B45)
B (S/S)
BI G/2)«.
BI (2/2).
PYM-4LanaLamola

Section 1
Service Informations
1-1. Board Layout (14 inch)
1-2. Disassembly (14 inch)
1-2-1. Top Cover Removal (14 inch)
@ Three screws
(claw case screw (OS))
Top cover
@ Three screws
{claw
case
screw
(OS)}
@
Two
screws
(4BVTT 4x8)
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1-2-2. Bezel Assy Removal (14 inch)
© Two claws
@ Two screws (+B 3 x 8)
a
7 pin
1-2-3. H1 Board Removal (14 inch)
@ Screw (+BVTP 3 x 12)
©
Four
claws
@
Wire
holder
CN2901
PYM-14L3/14L4/20L4

1-2-4. H2 Board Removal (14 inch)
® Screw (+BVTP 3 x 12)
CNB008
ew
ee
Wire
holder
cN5002 Gat
onsen Sq]
@ Four ciaws
® Four claws
D board
@ Bracket D
@® Four screws
ne (+BVTT 4.x 8)
Ns
PYM-14Lan4La20L4 1-3

1-2-6, C Board Removal (14 inch)
1-2-7, B Block Assy Removal (14 inch)
@ Screw (+PSW 4 x 8)
@ Screw (+BVTP 3 x 8)
@ Three screws (+BVTP 3 x 12)
@ Screw (+BVTP 3 x 8)
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