Read Sony CPD-220GS Service Manual online
— 1 —
CPD-220GS
SPECIFICATIONS
Picture tube
Viewable image size
Resolution
Standard image area
0.25 mm aperture grill pitch
17 inches measured diagonally
90-degree deflection
Approx. 327 x 243 mm (w/h)
(12
7/8
x 9
5/8
inches)
16.0" viewing image
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Approx. 312 x 234 mm (w/h)
(12
3/8
x 9
1/4
inches)
Deflection frequency
Plug & Play
Speaker
Headphones output
Audio input
AC input voltage / current
Power consumption
Dimensions
Mass
Horizontal: 30 to 85 KHz
Vertical: 48 to120 Hz
DDC1/2B/2Bi, GTF
0.25W (monaural)
Stereo minijack, accepts impedance
of 8
Ω
or more
Stereo minijack
100 to 240 V, 50-60 Hz, 1.9 - 1.1 A
Max. 120W
406 x 432 x 420 mm (w/h/d)
(16 x 17
1/8
x 16
5/8
inches)
Approx. 18.0 kg (39 lb 11 oz)
SERVICE MANUAL
Design and specifications are subject to change without notice.
CPD-220GS
COLOR COMPUTER DISPLAY
CPD-220GS
US Model
Canadian Model
Chassis No. SCC-L23A-A
D-1H Plus
CHASSIS
— 2 —
CPD-220GS
State Power Required
u
Power indicator POWER SAVING
consumption resumption time indicator
POWER SAVING FUNCTION
This monitor meets the power saving guidelines set
by the EPA Energy Star Program as well as the more
stringent TC092 guidelines (NUTEK). It is capable of
reduced power consumption when used with a com-
puter equipped with Display Power Management Sig-
naling (DPMS). By sensing the absence of the sync
signal coming from the computer, it will reduce the
power consumption as follows:
by the EPA Energy Star Program as well as the more
stringent TC092 guidelines (NUTEK). It is capable of
reduced power consumption when used with a com-
puter equipped with Display Power Management Sig-
naling (DPMS). By sensing the absence of the sync
signal coming from the computer, it will reduce the
power consumption as follows:
approx. 7% approx. 15 sec.
off
orange on
approx. 13% approx. 5 sec.
green on
orange on
Active-off
(2nd step of power saving)
Suspend
(1st step of power saving)
Normal Operation 100%
green on
off
Power - Off
0%
off
off
1
2
3
4
The Power Saving function will automati-
cally put the monitor into Active-off state
if the power switch is turned on without
any video signal input. Once the horizon-
tal and vertical syncs are sensed, the moni-
tor will automatically return to its Normal
operation state.
cally put the monitor into Active-off state
if the power switch is turned on without
any video signal input. Once the horizon-
tal and vertical syncs are sensed, the moni-
tor will automatically return to its Normal
operation state.
CAUTION:
TIMING SPECIFICATION
MODE
1
2
3
4
5
6
7
8
9
1 0
Resolution (H x V)
640 x 480
640 x 480
720 x 400
800 x 600
800 x 600
832 x 624 1024 x 768 1024 x 768 1024 x 768 1280 x 1024
Dot Clock (MHz)
2 5 . 1 7 5
3 6 . 0 0 0
2 8 . 3 2 2
4 9 . 5 0 0
5 6 . 2 5 0
5 7 . 2 8 3
7 8 . 7 5 0
8 0 . 0 0 0
9 4 . 5 0 0
1 3 5 . 0 0 0
HORIZONTAL
Hor. Freq. (kHz)
3 1 . 4 6 9
4 3 . 2 6 9
3 1 . 4 6 9
4 6 . 8 7 5
5 3 . 6 7 4
4 9 . 7 2 5
6 0 . 0 2 4
6 0 . 2 4 1
6 8 . 6 7 7
7 9 . 9 7 6
H-Total
3 1 . 7 7 8
2 3 . 1 1 1
3 1 . 7 7 7
2 1 . 3 3 3
1 8 . 6 3 1
2 0 . 1 1 1
1 6 . 6 6 0
1 6 . 6 0 0
1 4 . 5 6 1
1 2 . 5 0 4
H-Blanking
6 . 3 5 6
5 . 3 3 3
6 . 3 5 5
5 . 1 7 2
4 . 4 0 9
5 . 5 8 6
3 . 6 5 7
3 . 8 0 0
3 . 7 2 5
3 . 0 2 2
H-Front Porch
0 . 6 3 6
1 . 5 5 6
0 . 6 3 6
0 . 3 2 3
0 . 5 6 9
0 . 5 5 9
0 . 2 0 3
0 . 4 0 0
0 . 5 0 8
0 . 1 1 9
H-Sync.
3 . 8 1 3
1 . 5 5 6
3 . 8 1 3
1 . 6 1 6
1 . 1 3 8
1 . 1 1 7
1 . 2 1 9
1 . 2 0 0
1 . 0 1 6
1 . 0 6 7
H-Back Porch
1 . 9 0 7
2 . 2 2 2
1 . 9 0 7
3 . 2 3 2
2 . 7 0 2
3 . 9 1 0
2 . 2 3 5
2 . 2 0 0
2 . 2 0 1
1 . 8 3 7
H-Active
2 5 . 4 2 2
1 7 . 7 7 8
2 5 . 4 2 2
1 6 . 1 6 2
1 4 . 2 2 2
1 4 . 5 2 4
1 3 . 0 0 3
1 2 . 8 0 0
1 0 . 8 3 6
9 . 4 8 1
(
µ
sec)
VERTICAL
Ver. Freq. (Hz)
5 9 . 9 4 0
8 5 . 0 0 8
7 0 . 0 8 7
7 5 . 0 0 0
8 5 . 0 6 1
7 4 . 5 5 0
7 5 . 0 3 0
7 4 . 9 2 7
8 4 . 9 9 7
7 5 . 0 2 5
V-Total
5 2 5
5 0 9
4 4 9
6 2 5
6 3 1
6 6 7
8 0 0
8 0 4
8 0 8
1 0 6 6
V-Blanking
4 5
2 9
4 9
2 5
3 1
4 3
3 2
3 6
4 0
4 2
V-Front Porch
1 0
1
1 2
1
1
1
1
3
1
1
V-Sync.
2
3
2
3
3
3
3
3
3
3
V-Back Porch
3 3
2 5
3 5
2 1
2 7
3 9
2 8
3 0
3 6
3 8
V-Active
4 8 0
4 8 0
4 0 0
6 0 0
6 0 0
6 2 4
7 6 8
7 6 8
7 6 8
1 0 2 4
( l i n e s )
SYNC.
Int (G)
No
No
No
No
No
No
No
No
No
No
Ext (H/V)/Polarity
Yes -/-
Yes -/-
Yes -/+
Yes +/+
Yes +/+
Yes -/-
Yes +/+
Yes -/-
Yes +/+
Yes +/+
Ext (CS)/Polarity
No
No
No
No
No
No
No
No
No
No
Int/Non Int
Non Int
Non Int
Non Int
Non Int
Non Int
Non Int
Non Int
Non Int
Non Int
Non Int
— 3 —
CPD-220GS
1.5 k
Ω
0.15 µF
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform
the following safety checks before releasing the set to the
customer:
the following safety checks before releasing the set to the
customer:
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 microampere).
Leakage current can be measured by any one of three methods.
a return to chassis, must not exceed 0.5 mA (500 microampere).
Leakage current can be measured by any one of three methods.
W A R N I N G ! !
W A R N I N G ! !
W A R N I N G ! !
W A R N I N G ! !
W A R N I N G ! !
NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE
DEGAUSS COIL HAS BEEN REMOVED.
DEGAUSS COIL HAS BEEN REMOVED.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
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.
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 ENLEVEE.
DEMAGNETISATION EST ENLEVEE.
ATTENTION AUX COMPOSANTS RELATIFS A LA
SECURITE!!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET PAR UNE
MARQUE
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 SUPPLE-
MENTS 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 FONTIONNEMENT SUSPECTE.
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 SUPPLE-
MENTS 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 FONTIONNEMENT SUSPECTE.
1. Check the area of your repair for unsoldered or
poorly-soldered connections. Check the entire board
s u r f a c e f o r s o l d e r s p l a s h e s a n d b r i d g e s .
s u r f a c e f o r s o l d e r s p l a s h e s a n d b r i d g e s .
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.
Be absolutely certain that you have replaced all the
insulators.
4. L o o k f o r u n a u t h o r i z e d re p l a c e m e n t p a r t s ,
particularly transistors, that were installed during
a previous repair. Point them out to the customer
and recommend their replacement.
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.
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.
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.
be suspicious of your HV meter if sets always have
low HV.
8. C h e c k t h e a n t e n n a t e r m i n a l s , m e t a l t r i m ,
“metallized" knobs, screws, and all other exposed
metal parts for AC Leakage. Check leakage as
described below.
metal parts for AC Leakage. Check leakage as
described below.
1. A commercial leakage tester, such as the Simpson 229 or
RCA WT-540A. Follow the manufacturers' instructions to
use these instructions.
use these instructions.
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's 250 and Sanwa
SH-63Trd are examples of passive VOMs that are suitable.
Nearly all battery operated digital multimeters that have a
2V AC range are suitable. (See Fig. A)
indication is 0.75 V, so analog meters must have an accurate
low voltage scale. The Simpson's 250 and Sanwa
SH-63Trd are examples of passive VOMs that are suitable.
Nearly all battery operated digital multimeters that have a
2V AC range are suitable. (See Fig. A)
— 4 —
CPD-220GS
TABLE OF CONTENTS
Section Title Page
1. GENERAL
................................................................................... 5
2. DISASSEMBLY
2-1. Cabinet Removal ............................................................13
2-2. Service Position .............................................................. 13
2-3. D,A and J Board Removal.............................................. 13
2-4. Picture Tube Removal ................................................... 14
2-2. Service Position .............................................................. 13
2-3. D,A and J Board Removal.............................................. 13
2-4. Picture Tube Removal ................................................... 14
3. SAFETY RELATED ADJUSTMENT
................................. 15
4. ADJUSTMENTS
........................................................................ 16
5. DIAGRAMS
5-1. Block Diagram ................................................................19
5-2. Circuit Boards Location ................................................. 22
5-3. Schematic Diagrams and Printed Wiring Boards ...... 23
5-2. Circuit Boards Location ................................................. 22
5-3. Schematic Diagrams and Printed Wiring Boards ...... 23
1. D Board - Schematic Diagram ................................. 23
2. A Board - Schematic Diagram ................................. 27
3. J Board - Schematic Diagram .................................. 30
2. A Board - Schematic Diagram ................................. 27
3. J Board - Schematic Diagram .................................. 30
5-4. Semiconductors ..............................................................31
6. EXPLODED VIEWS
6-1. Chassis ............................................................................ 33
6-2. Packing Materials .......................................................... 34
6-2. Packing Materials .......................................................... 34
7. ELECTRICAL PARTS LIST
................................................ 35