Design and specifications are subject to change without notice.
TRINITRON® COLOR MONITOR
SERVICE MANUAL
21CR1 CHASSIS
AEP Model
Equator Model
N. Hemisphere Model
S. Hemisphere Model
Chassis No: SCC-L33E-A
CPD-G520
9-978-998-01
Picture tube
0.24 mm aperture grill pitch (center)
21 inches measured diagonally
90-degree deflection
FD Trinitron
Video image area
19.8" viewing image
Approx. 403.8 X 302.2 mm (w/h)
(16 x 12 inches)
Resolution
Maximum
Horizontal: Max. 2048 dots
Addressable:
Vertical: Max. 1536 lines
*Recommended
Horizontal: Max. 1600 dots
Addressable:
Vertical: Max. 1200 lines
Standard image area Approx. 388 x 291 mm (w/h)
(153/8 x 111/2 inches)
or
Approx. 364 x 291 mm (w/h)
(143/8 x 111/2 inches)
Input signal
Video
Analog RGB (75 ohms typical)
0.700 Vp-p Positive
Sync
H/V Separate or Composite sync
TTL 2 k ohms, Polarity free
Sync on Green:
0.3 Vp-p Negative
Power consumption
135 W
(with no USB devices connected)
Deflection frequency* Horizontal: 30 kHz to 130 kHz
Vertical:
48 kHz to 170 kHz
AC input voltage/current 100V to 240V, 50 - 60Hz,
2.0 - 1.0A
Dimensions
497 x 502 x 485 mm (w/h/d)
(195/8 x 19 x 187/8 inches)
Mass
Approx. 30 kg (66 lb 2 oz.)
Plug and Play
DDC2B/DDC2Bi, GTF**
*
Recommended horizontal and vertical timing condition
Horizontal sync width duty should be more than 4.8% of
total horizontal time or 0.8 µs, whichever is larger.
Horizontal blanking width should be more than 2.3 µsec.
Vertical blanking width should be more than 450 µsec.
** If the input signal is Generalized Timing Formula (GTF)
compliant, the GTF feature of the monitor will automatically
provide an optimal image for the screen.
SPECIFICATIONS
Self Diagnosis
Supported model
-- 3 --
CPD-G520
TABLE OF CONTENTS
SECTION TITLE
PAGE
Power Management .................................................................................................................................. 4
Diagnosis Function.................................................................................................................................... 4
Timing Specification .................................................................................................................................. 5
Warnings and Cautions............................................................................................................................. 6
Safety Check-Out...................................................................................................................................... 7
SECTION 1: DISASSEMBLY.................................................................................................................................. 8
1-1. Cabinet Removal............................................................................................................................. 8
1-2. Service Position............................................................................................................................... 9
1-3. A1 Board (C Block) Removal ........................................................................................................ 10
1-4. A1 Board & US Board Removal .................................................................................................... 10
1-5. Bezel Assembly and H1 Board Removal........................................................................................11
1-6. D Board Removal ...........................................................................................................................11
1-7. Picture Tube Removal ................................................................................................................... 12
Anode Cap Removal ..................................................................................................................... 12
1-8. Harness Location .......................................................................................................................... 13
SECTION 2: SAFETY RELATED ADJUSTMENTS.............................................................................................. 14
2-1. HV Regulator Circuit Check .......................................................................................................... 14
2-2. HV Protector Circuit Check............................................................................................................ 14
2-3. Beam Current Protector Circuit Check .......................................................................................... 14
SECTION 3: ADJUSTMENTS .............................................................................................................................. 15
3-1. Landing Rough Adjustment ........................................................................................................... 15
3-2. Landing Fine Adjustment............................................................................................................... 15
3-3. Convergence Rough Adjustment................................................................................................... 16
3-4. White Balance Adjustment Specification ....................................................................................... 16
3-5. Vertical and Horizontal Position and Size Specification ................................................................ 17
3-6. Focus Adjustment.......................................................................................................................... 17
SECTION 4: DIAGRAMS...................................................................................................................................... 18
4-1. Circuit Boards Location ................................................................................................................. 18
4-2. Printed Wiring Board and Schematic Diagram Information........................................................... 18
4-3. Block Diagrams ............................................................................................................................. 19
A1 Block Diagram, H1 Block Diagram, and L2 Block Diagram ..................................................... 19
DA Block Diagram and N Block Diagram ...................................................................................... 20
D Block Diagram ........................................................................................................................... 21
4-4. Schematics and Supporting Information ....................................................................................... 22
H1 Board Schematic Diagram....................................................................................................... 22
US Board Schematic Diagram ...................................................................................................... 23
A1 Board Schematic Diagram ....................................................................................................... 25
D Board Schematic Diagram......................................................................................................... 27
DA Board Schematic Diagram....................................................................................................... 29
N Board Schematic Diagram......................................................................................................... 30
L2 Board Schematic Diagram ....................................................................................................... 31
4-5. Semiconductors............................................................................................................................. 32
SECTION 5: EXPLODED VIEW ........................................................................................................................... 34
5-1. Chassis.......................................................................................................................................... 34
5-2. Picture Tube .................................................................................................................................. 35
5-3. Packing Materials .......................................................................................................................... 36
SECTION 6: ELECTRICAL PARTS LIST............................................................................................................ 37
-- 4 --
CPD-G520
POWER MANAGEMENT
The power saving mode complies with the VESA Display Power Management Signaling standard. Each state of power management shall be activated
by the host computer terminating the appropriate sync signals. Blanking the video must precede termination of the sync signals. The elapsed time
counter shall also be controlled by the host computer. Reactivation of the monitor shall be accomplished from the host computer by re-establishing the
normal sync signal.
Power consumption
Screen
Horizontal
Vertical
Power
Recovery time
Indicator
mode
(video) sync signal sync signal consumption
1
Normal operation
active
yes
yes
< 135 W
--
Green
2
Active-off* (deep sleep)** blank
no*
no*
< 3 W
Orange
3
Power-off
--
--
--
0 W (approx)
--
Off
* When your computer enters power saving mode, the input signal is cut and NO SIGNAL appears on the screen before the
monitor enters active mode. After a few seconds, the monitor enters power saving mode.
* "Deep sleep" is power saving mode defined by the Environmental Protection Agency.
DIAGNOSIS FUNCTION
When a failure occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the lamp will identify the first of the problem areas.
1
2
3
5
4
Status
Area of Failure
LED Indication
Amber (0.5 second) / Off (0.5 second)
Amber (0.5 second) / Off (1.5 second)
+B
Horizontal/Vertical Deflection Failure
Thermal Protector
ABL Protector
HV Failure
Failure 1
Failure 2
Failure 3
Failure 4
Aging/Self Test
6 Out of scan range
Amber (1.5 second) / Off (0.5 second)
Green (0.5 second) / Off (0.5 second)
Green (OSD Indication)
Amber (0.25 second) / Off (0.25 second)
Amber (0.25 second) / Off (1.25 second)
Amber (0.5 second) / Off (0.5 second)
Aging Mode (Video Aging): During Power Save, press MENU button for longer than 2 seconds.
Self Test (OSD Color Bar):
During Power Save, push up Control button for longer than 2 seconds.
Reliability Check Mode:
During Power Save, push down Control button for longer than 2 seconds.
-- 5 --
CPD-G520
TIMING SPECIFICATION
MODE AT PRODUCTION
MODE 1
MODE 2
MODE 3
MODE 4
RESOLUTION
640 X 480
1600 X 1200
1920 X 1440
1920 X 1440
CLOCK
25.175 MHz
229.500 MHz
341.000 MHz
297.000 MHz
--HORIZONTAL--
H-FREQ
31.469 kHz
106.250 kHz
128.485 kHz
112.500 kHz
usec
usec
usec
usec
H. TOTAL
31.778
9.412
7.783
8.889
H. BLK
6.356
2.440
2.152
2.424
H. FP
0.636
0.279
0.457
0.485
H. SYNC
3.813
0.837
0.622
0.754
H. BP
1.907
1.325
1.073
1.185
H. ACTIV
25.422
6.972
5.630
6.465
--VERTICAL--
V. FREQ (HZ)
59.940 Hz
85.000 Hz
84.977 Hz
75.000 Hz
lines
lines
lines
lines
V. TOTAL
525
1250
1512
1500
V. BLK
45
50
72
60
V. FP
10
1
1
1
3
V. SYNC
2
3
3
V. BP
33
46
68
56
V. ACTIV
480
1200
1440
1440
--SYNC--
INT(G)
NO
NO
NO
NO
EXT (H/V) /POLARITY
YES N/N
YES P/P
YES P/P
YES N/P
EXT (CS) /POLARITY
NO
NO
NO
NO
INT/NON INT
NON INT
NON INT
NON INT
NON INT
-- 6 --
CPD-G520
WARNINGS AND CAUTIONS
CAUTION
Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT, after
removing the anode.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of this
receiver is directly connected to the ac power line.
! 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.
ATTENTION!!
Apres avoir deconnecte le cap de l'anode, court-circuiter l'anode du tube cathodique et celui de l'anode du cap au chassis metallique de
l'appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
Afin d'eviter tout risque d'electrocution provenant d'un chássis sous tension, un transformateur d'isolement doit etre utilisé lors de tout
dépannage. Le chássis de ce récepteur est directement raccordé à l'alimentation du secteur.
! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifies par une trame et par une marque ! 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. Les reglages de circuit dont l'importance est
critique pour la securite du fonctionnement sont identifies dans le present manuel. Suivre ces procedures lors de chaque remplacement
de composants critiques, ou lorsqu'un mauvais fonctionnement suspecte.