DOWNLOAD Sony GDM-200PS / GDM-200PST / GDM-200PST9 Service Manual ↓ Size: 3.7 MB | Pages: 38 in PDF or view online for FREE

Model
GDM-200PS GDM-200PST GDM-200PST9
Pages
38
Size
3.7 MB
Type
PDF
Document
Service Manual
Brand
Device
Monitor
File
gdm-200ps-gdm-200pst-gdm-200pst9.pdf
Date

Sony GDM-200PS / GDM-200PST / GDM-200PST9 Service Manual ▷ View online

SERVICE MANUAL
SPECIFICATIONS
MICROFILM
CHASSIS
Picture tube
0.25 mm aperture grille pitch
17 inches measured diagonally
90-degree deflection
Viewable image size
Approx. 327 
×
 243 mm (w/h)
(12 
7
/
8
  
×
 9 
5
/
8
 inches)
16.0” viewing image
Resolution
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Standard image area
Approx. 312 
×
 234 mm (w/h)
(12 
3
/
8
  
×
 9 
1
/
4
 inches)
or
Approx. 293 
×
 234 mm (w/h)
(11 
5
/
8
 
×
 9 
1
/
4
 inches)
Deflection frequency
Horizontal: 30 to 92 kHz
Vertical: 48 to 160 Hz
AC input voltage/current
100 to 240 V, 50 – 60 Hz, 1.7 – 1.0 A
Power consumption
Max. 120 W
Dimensions
406 
×
 432 
×
 420 mm (w/h/d)
(16 
×
 17 
1
/
8
 
×
 16 
5
/
8
 inches)
Mass
Approx. 18.8 kg (41 lb 7 oz)
Supplied accessories
See page 6
Design and specifications are subject to change without notice.
TRINITRON
®
 COLOR GRAPHIC DISPLAY
GDM-200PS/200PST/200PST9
N3
GDM-200PS
US Model
Canadian Model
SH Model
Chassis No. SCC-L11B-A
GDM-200PST
AEP Model
UK Model
GDM-200PST9
AEP Model
Chassis No. SCC-L11C-A
REVISED
– 2 –
GDM-200PS/200PST/200PST9
SAFETY  CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
1.
Check the area of your repair for unsoldered or poorly-sol-
dered 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 tran-
sistors, that were installed during a previous repair. Point
them out to the customer 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 specified values.
Make sure your instruments are accurate; be suspicious of
your HV meter if sets always have low HV.
8.
Check the antenna terminals, metal trim, “metallized”
knobs, screws, and all other exposed metal parts for AC
Leakage. Check leakage as described below.
3.
Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOMs that are suitable. Nearly all
battery operated digital multimeters that have a 2 V AC
range are suitable.  (See Fig. A)
WARNING!!
NEVER TURN ON THE POWER IN A CONDITION IN
WHICH THE DEGAUSS COIL HAS BEEN REMOVED.
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.
AVERTISSEMENT!!
NE JAMAIS METTRE SOUS TENSION QUAND LA
BOBINE DE DEMAGNETISATION EST ENLEVÉE.
ATTENTION AUX COMPOSANTS RELATIFS À LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET
UNE MARQUE 
¡
 SONT CRITIQUES POUR LA
SÉCURITÉ.  NE LES REMPLACER QUE PAR UNE PIÈCE
PORTANT LE NUMÉRO SPECIFIÉ.  LES RÉGLAGES DE
CIRCUIT DONT L’IMPORTANCE EST CRITIQUE 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.
CAUTION  ON  DAS  (ECS)  CONNECTOR
The connector for DAS (ECS) adjustment is provided inside
the cover shown below. Be careful with an electrical shock
when connecting the connector with the power supplied. Also,
return the removed cover to the home position.
1.5 k
0.15 µF
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
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 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1.
A commercial leakage tester, such as the Simpson 229 or
RCA WT-540A. Follow the manufacturers’ instructions to
use these instruments.
2.
A battery-operated AC milliammeter. The Data Precision
245 digital multimeter is suitable for this job.
Left side
GDM-200PS/200PST/200PST9
– 3 –
POWER  SAVING  FUNCTION
This monitor is capable of three states of reduced power consumption. By sensing the absence of video signals and one or both sync signals
coming from the host computer, it will reduce power consumption as follows.
Power consumption state
1 Normal operation
2 Standby (1st state)
3 Suspend (2nd state)
4 Active-off (3rd state)
5 Power-off
Power consumption
120 W
85 W
15 W
5 W
0 W
u
 power indicator
Green on
Green and orange alternate
Green and orange alternate
Orange on
Off
Recovery time
Approx. 1 sec.
Approx. 3 sec.
Approx. 15 sec.
DIAGNOSIS
Failre
+B failure
Horizontal / Vertical Deflection failure,
Thermal protector
ABL protector
HV failure
Aging / Self Test
Power LED
Amber
Off
(0.5 sec)
(0.5 sec)
Amber
Off
(1.5 sec)
(0.5 sec)
Amber
Off
(0.5 sec)
(1.5 sec)
Amber
Off
Amber
Off
(0.25 sec)
(0.5 sec)
(0.25 sec)
(1.25 sec)
Amber
Off
Green
Off
(0.5 sec)
(0.5 sec)
(0.5 sec)
(0.5 sec)
Aging Mode (Video Aging) : During Power Save, press “MENU” key for longer than 2 second.
Self Test (OSD Color Bar)
: During Power Save, press “CONTRAST” + (
>) key for longer than 2 second.
Reliability Check Mode
: During Power Save, press “CONTRAST”– (
.) key for longer than 2 second.
TIMING  SPECIFICATION
MODE AT PRODUCTION
MODE 1
MODE 2
RESOLUTION
1280 X 960 1280 X 1024
CLOCK
148.500 MHz 135.000 MHz
— HORIZONTAL —
H-FREQ
85.938 kHz
79.976 kHz
usec
usec
H. TOTAL
11.636
12.504
H. BLK
3.017
3.022
H. FP
0.431
0.119
H. SYNC
1.077
1.067
H. BP
1.508
1.837
H. ACTIV
8.620
9.481
— VERTICAL —
V. FREQ(Hz)
85.002 Hz
75.025 Hz
lines
lines
V. TOTAL
1011
1066
V. BLK
51
42
V. FP
1
1
V. SYNC
3
3
V. BP
47
38
V. ACTIV
960
1024
 — SYNC  —
INT(G)
NO
NO
EXT(H/V)/POLARITY
YES P/P
YES P/P
EXT(CS)/POLARITY
NO
NO
INT/NON INT
NON INT
NON INT
97.7.14 VER.
– 4 –
GDM-200PS/200PST/200PST9
TABLE  OF  CONTENTS
Section
Title
Page
1. GENERAL
................................................................... 1-1
2. DISASSEMBLY
2-1.
Cabinet Removal .................................................. 2-1
2-2.
A Board Removal ................................................. 2-1
2-3.
AC Inlet and I/O Terminal Board Removal ........ 2-2
2-4.
D Board Removal ................................................. 2-2
2-5.
Service Position .................................................... 2-2
2-6.
Picture Tube Removal .......................................... 2-3
3. SAFETY  RELATED  ADJUSTMENT
............. 3-1
4. ADJUSTMENTS
...................................................... 4-1
5. DIAGRAMS
5-1.
Block Diagram
(with Frame Schematic Diagram) ........................ 5-1
5-2.
Circuit Boards Location ....................................... 5-4
5-3.
Schematic Diagrams and Printed Wiring Boards ... 5-4
(1) Schematic Diagram of D Board .......................... 5-5
(2) Schematic Diagram of A Board ........................ 5-13
5-4.
Semiconductors ................................................. 5-16
6. EXPLODED  VIEWS
............................................. 6-1
7. ELECTRICAL  PARTS  LIST
............................ 7-1
Page of 38
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Sony GDM-200PS / GDM-200PST / GDM-200PST9 Service Manual ▷ Download

  • DOWNLOAD Sony GDM-200PS / GDM-200PST / GDM-200PST9 Service Manual ↓ Size: 3.7 MB | Pages: 38 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony GDM-200PS / GDM-200PST / GDM-200PST9 in PDF for free, which will help you to disassemble, recover, fix and repair Sony GDM-200PS / GDM-200PST / GDM-200PST9 Monitor. Information contained in Sony GDM-200PS / GDM-200PST / GDM-200PST9 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.