DOWNLOAD Sony GDM-F520 (serv.man3) Service Manual ↓ Size: 4.26 MB | Pages: 82 in PDF or view online for FREE

Model
GDM-F520 (serv.man3)
Pages
82
Size
4.26 MB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / S/M GDM-F520 01 US CAN AEP
File
gdm-f520-sm3.pdf
Date

Sony GDM-F520 (serv.man3) Service Manual ▷ View online

CHASSIS
SERVICE MANUAL
SPECIFICATIONS
GDM-F520
CR1
AEP Model
US Model
Canadian Model
Chassis No. SCC-L33D-A
TORINITORON
®
 COLOR GRAPHIC DISPLAY
CRT
0.22 mm aperture grille pitch, 90-degree deflection, FD Trinitron
21 inches measured diagonally
Viewable image size
Approx. 403.8 
×
 302.2 mm (w/h) (16 
×
 12 inches) 
19.8" viewing image
Resolution (H:Horizontal, V:Vertical)
Maximum: H: 2048 dots, V: 1536 lines
Recommended: H: 1600 dots, V: 1200 lines
Input signal levels
Video signal:
Analog RGB: 0.700 Vp-p (positive), 75 
SYNC signal: H/V separate or composite sync: 
TTL 2 k
, Polarity free
Sync on Green: 0.3 Vp-p (negative)
Standard image area
Approx. 388 
×
 291 mm (4:3) 
(15 
3
/
8
 
×
 11 
1
/
2
 inches) or 
Approx. 364 
×
 291 mm (5:4) 
(14 
3
/
8
 
×
 11 
1
/
2
 inches)
Deflection frequency  (H:Horizontal, V:Vertical)
H: 30 to 137 kHz, V: 48 to 170 Hz
AC input voltage/current
100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A
Power Consumption (with no USB devices connected)
Approx. 145 W
Operating temperature
10 ºC to 40 ºC
Dimensions
Approx. 497 
×
 499 
×
 487 mm (w/h/d)
 (19 
5
/
8
 
×
 19 
3
/
4
 
×
 19 
1
/
4
 inches)
Mass
Approx. 30 kg (66 lb 2 oz)
Plug and Play
DDC2B/DDC2Bi
Supplied accessories
Power cord
HD15 video signal cable
USB cable
Exclusive Power Mac G3/G4 adapter
This instruction manual
Design and specifications are subject to change without notice.
GDM-F520(E)
2
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.
3. Measuring the voltage drop across a resistor by means of a VOM or
battery-operated AC voltmeter. The “limit” indication 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)
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-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 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 right.
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY  CHECK-OUT
GDM-F520(E)
3
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 ADJUST-
MENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES
WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IM-
PROPER 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.
Note: Hand degauss must be used on stand-by or power-off condition.
This model has an automatic earth magnetism correction function
by using an earth magnetism sensor and a LCC coil. When using a
hand degauss while monitor (LCC coil) is being operated, it some-
times gets magnetized, and the system may not work properly as a
result.
GDM-F520(E)
4
POWER  SAVING  FUNCTION
This monitor meets the power-saving guidelines set by VESA, TCO’99, 
and 
E
NERGY 
S
TAR. If no signal is input to the monitor from your 
computer, the monitor will automatically reduce power consumption as 
shown below.
*
1
Figures reflect power consumption when no USB compatible 
peripherals are connected to the monitor.
*
2
When your computer enters power saving mode, NO SIGNAL appears 
on the screen. After a few seconds, the monitor enters power saving 
mode.
*
3
“Deep sleep” is power saving mode defined by the Environmental 
Protection Agency. 
Power mode
Power consumption
*
1
!
 (power) 
indicator
normal operation
 145 W 
green
active off*
2
(deep sleep)*
3
 3 W
orange
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Sony GDM-F520 (serv.man3) Service Manual ▷ Download

  • DOWNLOAD Sony GDM-F520 (serv.man3) Service Manual ↓ Size: 4.26 MB | Pages: 82 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony GDM-F520 (serv.man3) in PDF for free, which will help you to disassemble, recover, fix and repair Sony GDM-F520 (serv.man3) Monitor. Information contained in Sony GDM-F520 (serv.man3) 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.