Sony Trinitron CPD-1302 User manual

SERVICE MANUAL
August, 1986
US Model
Canadian Model
Chassis No. SCC·AOBA·A
_ ... _ ... --
- ... _._------ --
l*i i= 1: ~ E E-~l.E=j':' ~ i.._
SPECIFICATIONS
Picture tube
Resolution
Scanning frequency
Input
Pin Connection
Pin No.
1 2
NORMAL GND
GND
D2·1
GND
GND
D2-2 GND
r
D2
3
Super Fine Pitch Trinltron color tube
13-lnch picture tube measured diagonally
90 degree deflection
Anti·glaring dark screen
Useful screen 274mm x 207mm
Phosphor P22
Phosphor pitch 0.26mm
900 x 560 dots
Vertical sync signal frequency:
50-100 Hz
Horizontal sync signal frequency:
15.0-34.0 kHz
RGB input (D·sub 9 pin) (Analog and TTL
available)
Horizontal Vertical
4 5 6 7 8 9 Frequency Frequency
(kHz)
(Hz)
R G B GND HD
VD 15.0 - 34.0
50 - 100
R G B Vi HD
VD 15.0 - 17.0
50 - 100
R G B g b
HD
VD 17.0 - 27.0
55 - 100
D2-3 GND
GND - Vi
G HD
VD 17 .0 - 27.0
50-
55
D2-4 GND
r R G B g b
HD
VD 27 .0 - 34.0
50 - 100
D1
GND
GND
R G B Vi
- HD VD 15.0 - 34.0
50 - 100
GND: Grounded R: Red signal G: Green signal
B: Blue signal -: No connection HD: Horizontal drive signal
VD : Vertical drive signal Vi: IntenSity signal
r: Separate
red signal for EGA g: Separate green Signal for EGA
b: Separate blue signal for EGA
• ANALOG
- SVNC ON GREEN are automatically available.
- When ANALOG is selected, Pin 8 is available for both positive and nega -
tive computer sync signals.
• TTL
-TTL signal is available for NORMAL,
D1, and D2.
- HD and VD are available for both positive and negative.
-
D2-3 can be used for green monochrome monitor.
• Vertical size
When vertical frequency changes, the vertical size can be manually ad-
justed. (except D2)
Power requirements
Power consumption
Dimensions
Weight
Supplied accessory
Optional accessories
120V AC, 50/60 Hz
96 W (maximum)
370x330x415 mm (w/h/d)
(14
5/8 x
13 X 163 18 Inches)
including projecting parts
14.5 kg (32 Ib)
AC power cord (1)
Monitor cable (g.pin ... g.pln)
SMF-512
SMF-513
SMF-514
Display stand SU-535
Design and specifications subject to change without notice.
iiBCtl
TRINITRON® CHARACTER
DISPLAY
SONY:

CPD-130 2 1
Timing Charts (for approximate reference)
[] D2·1 (IBM CGA compatible)
The Indicated values apply when the line period Is 63.7I's and the field
period Is 16.7ms.
rn D2·2 (IBM EGA compatible)
rn 02·3 (IBM MOA compatible)
H-sync
Horizontal
1.~
Vertical
250pS
I 20.1rns
display period
1--1. 19rns
Urns
The indicated values apply when the line period Is 54.3JLS and the field
period is 20.1 ms.
Note
The picture may be biased or the picture size may be changed depend·
ing on the timing of the connected equipment.
INFORMATION
This equipment generates and uses radio frequency energy and if not
installed and used properly, that is, in strict accordance with the manufac·
turer's instructions, may cause interference to radio and television recep·
tion. It has been type tested and found to comply with the limits for a
Class B computing device In accordance with the specifications in Sub-
part J of Part 15 of FCC Rules, which are designed to provide reasona·
ble protection against such interference
In a residential installation.
However, there Is no guarantee that Interference will not occur in a par·
ticular installation. If this equipment does cause interference to radio
or
television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by
one or more
of the following measures:
Reorient the receiving antenna
Relocate the equipment with respect to the receiver
Move the equipment away from the receiver
Plug the equipment into a different outlet so that equipment and
receiver are on different branch circuits.
If necessary, the user should consult the dealer or an experienced
radloltelevlslon technician for additional suggestions. The user may find
the following booklet prepared
by the Federal Communications Commls·
slon helpful:
"How to identify
and Resolve Radio-TV Interference Problems." This book·
let is available from the
U.S. Government Printing Office, Washington,
DC 20402, Stock No. 0Q4.()()(J.()()345-4.
A shielded interface cable such as the SMF·series recommended on page
6 must
be used with this equipment.
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 CON·
NECTED TO THE AC POWER LlNE_
SAFETY·RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARK
&. ON THE SCHEMATIC DIAGRAMS. EXPLODED
VIEWS AND IN THE PARTS LIST ARE CRITICAL TO
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 TO SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PRO·
CEDURES
WHENEVER CRITICAL COMPONENTS ARE
REPLACED OR IMPROPER OPERATION IS SUSPECTED.
ATTENTION AUX COMPOSANTS RELATIFS A LA
SECURITEII
LES COMPOSANTS
IDENTIFIES PAR UNE TRAME ET
PAR UNE MARQUE&'SUR LESSCHEMAS DE PRINCIPE,
LES
VUES EXPLOSEES ET LES LISTES DE PIECES
SONT
D'UNE IMPORTANCE CRITIQUE POUR LA
SECURITE DU FONCTIONNEMENT. NE LES REM·
PLACER .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'IMPOR·
TANCE 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 FONCTIONNE·
MENT EST SUSPECTE.
-2-

CPD-1302
SAFETY CHECK-OUT
(US Model only)
After correcting the original service problem, LEAKAGE TEST
perform the following safety checks before releasing
the set
to the customer:
1.
2.
Check the area of your repair for unsoldered or
poorly-soldered connections. Check the entire
board surface for solder splashes and bridges.
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, par-
ticularly 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 replace-
ment.
6. Check the line cord for cracks and abrasion.
Recommend the replacement
of any such line
cord to the customer.
7. Check the condition
of the monopole antenna
(if a:ny).
Make sure the end
is not broken off, and has
the plastic cap
on it. Point out the danger of
impalement on a broken antenna to the
customer, and recommend the antenna's
replacement. .
8. Check the B+ and HV to see they are at the
values specified. Make sure your instruments
are accurate; be suspicious
of your HV meter
if sets always have low HV.
To Exposed Metal
Parts
on Set
-=- Earth Ground
AC
voltmeter
(0.75 V)
Fig. A. Using an AC voltmeter to check AC leakage.
- 3 -
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 microampers). Leakage
current can be measured by
anyone of three
methods.
I. A commercial leakage tester, such as the
Simpson 229 or RCA Wf-540A. Follow the
manufacturers' instructions to use these instru-
ments.
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 YOM or battery-operated AC volt-
meter. 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 YOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V
AC range are
suitable. (See Fig. A)
HOW TO FIND A GOOD EARTH GROUND
A cold-water pipe is guaranteed earth ground; the
cover-plate retaining screw
on most AC outlet boxes is
also at earth ground. If the retaining screw is to be
used
as your earth-ground, verify that it is at ground
by measuring the resistance between
it and a cold-
water pipe with an ohmmeter. The reading should be
zero ohms. If a cold-water pipe is
not accessible,
connect a 60-100 watts trouble light
(not a neon
lamp) between the hot side
of the receptacle and the
retaining screw. Try
both slots, if necessary, to locate
the
hot side of the line, the lamp should light at
normal brilliance if the screw is at ground potential.
(See Fig. B)
Trouble Light
-: AC Outlet Box
Onmmeter
_~_-t-@ I
Cold-water Pipe
Fig. B. Checking for earth ground.

CPD-1302
TABLE OF CONTENTS
Section Title Page Section Title
1. GENERAL
4. DIAGRAMS
1-1. Location and Function of controls ........ 5 4-1. Block Diagram . . . . . . . . . . . . . . . . . . . .
13
1-2. Connections ....................... 6 4-2. Circuit Boards Location
.............. 17
1-3. Use
of a Display Stand ................ 6 4-3. Schematic Diagrams
................. 17
4-4. Printed Wiring Boards
.... . .. . ... . .. . . 25
2. DISASSEMBLY 4-5.
Wave Form ........ . .............. 33
2-1. Cabinet Removal
...... . ............. 7 4-6. Semiconductors
................... 35
2-2. Checking for
BA board Up ............. 7
2-3. Checking for G and F Boards Up
......... 8 5. EXPLODED VIEWS
2-4. Checking for BA board Up ............. 8 5-1. Picture Tube
....... . .............. 36
2-5. Checking for
CA board Up ............. 9 5-2. Chassis Assy
...... . ............... 37
2-6. Checking for H and
BB boards Up ........ 9
2-7. Picture Tube Removal . .
.. ...... . .... 10 6. ELECTRICAL PARTS LIST . .......... . ... 36
3. SAFETY RE LATED ADJUSTMENT . . . . . . 11, 12
-4-

SECTION 1
GENERAL
CPO-1302
,-,_ LOCATION AND FUNCTION OF CONTROLS
On the Iront panel
On the rear panel
I ~~ .r----,rn
j ""==---: =------1[!]
m POWER switch and indicator (green)
display stand
(optional)
To turn on the power of the unit, press this switch to ON. The Indi-
cator will light up . To turn off the unit, press towards OFF .
8
0N
o ld OFF
rn PICTURE control
Adjusts the contrast. Turn downwards to increase contrast, or up-
wards for less contrast.
rn BRIGHTNESS control
Normally
keep this control at the center detent position. For a brighter
display, turn this knob downwards,
or for a darker display, turn It
upwards.
-fi-
Push upward
to remove panel.
mH SHIFT (horizontal shift) control
Turn this control to center the displays of microcomputers, charac-
ter generators, etc. that are shifted toward the left or right side of
the screen.
[[) V SHIFT (vertical shift) control
Turn this control to eliminate any shifting in the vertical direction.
[I] H SIZE (horizontal size) control
Turn this control to adjust the horizontal size.
rn V SIZE (vertical size) control
Turn this control to adjust the vertical size.
[[) RGB Input selectors
Depending on the RGB output of the equipment you have connect-
ed, set these switches to one of the following four positions.
ANALOG: For microcomputers
having analog
RGB output, such
as those using the PGA card.
The position of the left switch
has
no effect when the right
switch is set to ANALOG.
NORM-DIGITAL: For microcom-
puters having TIL RGB output,
such
as the IBM 3270 .
D1-DIGITAL: For mIcrocom-
puters having TIL RGB and I
signal output, such
as the IBM
PC, AT and XT using the stand·
ard color graphics card.
D2-DIGITAL: For TIL graphics
cards
on the IBM PC, AT and
XT . (automatic adjustment be·
tween EGA, CGA and MDA)
1 1 012
NORM 01
I ~ I
NORM 01 d2
~I
I
DIGITAL
C@]
ANALOG
I
DIGITAL
W£J
ANALOG
ill RGB IN (Input) connector (S-pln D-sub)
Allows a microcomputer having either analog or digital RGB output
to
be connected.
Refer to
page 8.
11m AC IN connector
Connect to the
AC outlet with the supplied AC power cord.

;:PD-1302
1·2. CONNECTIONS
Use an appropriate optional color monitor cable with 9-pln D·sub con·
nectors shown in the table.
Be sure to turn the power of the unit off before making any connections.
Equipment that can
be connected
IBM PC, ·AT, XT
with CGA
IBM PC, AT, XT
with EGA, CGA, MDA
IBM 3270
IBM PC, AT, XT
with PGA
Monitor cable Position
of RGB
(optional) input selectors
to be used of the CPD·1302
SMF·512 D1·DlGITAL
SMF·512 D2·DIGITAL
SMF·514 NORM·DIGITAL
SMF·513 ANALOG
Rear of the CPD·I302
',r,:- _____ ~II
o
o
Set to appropriate :
positions. -;''''' IL "': ""''''+='''~ ''' '''=:'- ____ ...JI
Microcomputer
to the
AC power
Input connector
.. to a
AC power wall
cord (supplied) outlet
1 Align the plug with the receptacle. 2 Plug in and tighten the
screws.
~ ~
, To disconnect the plug, loosen the screws,
Note
The monitor cable should arrange the RGB output signals of the con·
nected equipment so that they match the signal assignment of the RGB
IN connector of this unit (See page 10). If you are not sure whether you
can use your computer or character generator with
CPD·1302 or which
monitor cable to use, consult your authorized Sony dealer.
1-3. USE OF A DISPLAY STAND
With the optional Sony SU·535 display stand, this unit can be adjusted
to
be viewed at your desired angle within goo horizontally and 15° ver.
tically.
15°
For details, read the instructions of the display stand,
-6-

SECTION 2
• Follow h . OISA
, • d'~'''mblv SSEMBLY
procedure ·
.1. CABINET REMOVAL numerical order given.
2 In the
@Pulloutcab·
sh met to th .
own
by the arrow. e direction
2·2. CHECKING
FOR BA BOARD UP
- 7 -
(f) two screws
~V4"12)
@OpentheB
show '" board tn the arrow. a the direction

CPD-1302
2·3. CHECKING FOR G AND F BOARDS UP
® four screws
(TA, BV3XB)
(]) four screws
(TA, BV3XB)
@ pull out G boerd
to the direction
shown
by the errow.
2·4. CHECKING FOR D BOARD UP
® Open the D boerd to the
direction shown by the arrow.
-8-

2·5. CHECKING FOR CA BOARD UP
@CAboard
2·6. CHECKING FOR HAND BB BOARDS UP
@twoscrews
(TA, BV3XB)
(j)Cover
-9-
CPD-1302 CPD-1302
2·7. PICTURE TUBE REMOVAL
• Removing Procedures
CD Turn up one side of the rubber cap in the direction
indicated by the arrow 0.
Anode button
oUsing IJ thumb, pull up the rubber cap firmly in the
direction indicated by thelJrrow ®.
oWhen one side of the rubber cap is separated from the
anode button, the anode cap can be removed by turning
up the rubbtJr cap and pulling up it in the direction of the
arrow(£).
@cover
I
EJ;-\
~ @ two screws
(TA, BV3XB)
- 10-

CPD-1302 CPD-1302
SECTION 3
NOTE: SAFETY RELATED ADJUSTMENT
(1) TEST EQUIPMENT REQUIRED
1. Yoltmeter (YOM)
2. Digital multimeter
3. DC POWER SUPPLY.
4. SONY Microcomputer
SMC-70
I+B MAx ( 8 R416, R489) I
Be sure to perform the following adiustment after replacing
the parts below. (Marked on
~ the schematic diagram).
(G board) 0653, R658, R659, T653
(BA board)
IC401, IC404, IC405, 0409, R409, R410, R4", R412,
R413, R414, R415, R416, R417, R418, R419, R424,
R425, R448, R479, R480, R489, R488.
1. Input a dot signal and set PICTURE, BRIGHT to mini-
mum.
2. Turn +B VR (RV403) to maximum.
3. Observe BA board to connecter pin CD BA-1 on the
digital multimeter.
4. Set SMC-70 output to fH =15.734 kHz and confirm
that the +B line is less than 62.0V dc.
5. Set SMC-70 output to fH = 18.4 kHz and confirm that
the +B line is less than 728V dc.
6. Set SMC-70 output to fH - 21.8 kHz and confirm that
the +B line is less than 86.0V dc.
7. SetSMC-70 output to fH '" 25 kHz and confirm that the
+B line is
less than 97.8 V dc.
B. Set SMC-70 output to fH = 31.5 kHz and confirm that
the +B line is less than 124.5V dc_
9. If the specification is not met, adiust R416, R489 and
repeat steps 1 and 3 until satisfied.
IHOLO DOWN ADJUSTMENT ( B R339) I
Be sure to perform the following adiustment after replacing
the parts below. (Marked
~ on the schematic diagram).
(BA board)
IC301, IC302, D304, R301, R302, R335, R336, R337,
R338, R339, R340, R341, R342.
(D board)
R565, R566
1. Set the PICTURE and BRIGHTNESS control to maxi-
mum.
2· Input the dot pattern signal.
3_ Set SMC-70 output to fH = 21.8 kHz and confirm that
the BA board to connecter pin 0 BA-14 is less than
7.3±0.8V dc_
4. Set the PICTURE and BRIGHTNESS control to mini-
mum and supply is less than 8.95 V dc, confirm that HV
HOLD DOWN operates.
5. Adiust ABL current to 400~fojJA with PICTURE and
BRIGHTNESS controls.
6. Confirm that there is less than 8.70 V dc whereby the
raster disappears during operation
of hold-down circuit
Note: If the hold·down circuit starts operating in the above
case, switch OFF thePOWER of the setimmediately.
7. If above steps is not satisfied, select resistance valve of
R339 and repeatabove steps 1 through 6.
- 11 -
digital multimeter
ammeter
1.0MA dc
III Ii }o-:-J --~e.N
~~~~~~
I
: T502
I FBT
I
CONFIRMATION WHEN REPLACING H. V.R.
(HIGH VOL TAGE REGISTER)
The following adiustments should always be performed
with reference to whether an-X-ray radiation control circuit
is connected or not, when replacing H. V. R.
• This check is to be performed when H. V.R. only is
replaced,
and has no relation to the hold-down circuit
readiustment for replacement of parts marked ~.
(Connection Confirmation)
1. Turn the POWER switch ON, and receive white signals
and set the
PICTURE and BRIGHTNESS controls to
MAX.
2 When the set is operating normally with 120V AC sup-
ply, confirm the voltage of the connection point for
connector 0 pin BA-14 is 7. 3±0.8 V dc.
- 12-

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[!H!1j]
0 11 6 25C4035P
~
22
23 24
25
26 27
ml ~ , J:~ l ~ I•. ,~",' ~
l
~~~~~~~~ ~~~~~'~2~ ' ~ ' l! ' J ' ~ ';:; '
.. 0 'IJ ~ ' Q' n ,g,"
IC I 05 5N74515N 'j " ... '"
~ ICI06 74FI38PC
I
~
0 11 7 2SC4035P 0 11 9 2SC4035P 01 15 ": 1» -.'.. f.t'l....
[!Q!l 'I ~ T s O' , 25C4035P .- _ II""
~ . ,, ' '-..C.+ "M
L- ___________________ ~ ~ ' = ' ____ ~. ~ ~ .. _______________ __ ~
-- 20 --

4·2. CIRCUIT BOARDS LOCATION
Note: The components identified byshading and mark
&. are critical for safety. Replace only with
part number specified.
.. :~::
Note: Les composants identifi6s par une trame et
par une marque &. $Ont d'une importance
critique pour la s6curit6. Ne les remplacer
Que par des pieces de num6ro sp6cifi6.
Note:
• All capacitors are in pF unless otherwise noted. p : ppF 50WV
or less are not indicated except for electrolytics.
•
All resistors ara in ohms, 1/6W unless otherwise noted. k :
1000n, M : 1000kn.
• -m- :nonflammable resitor.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted .
• ~ : fusible resitor.
• t;. : internal component .
• c:::::J :panel designation.
• lIE : salected to yield optimum performance.
• The components indentified by B in this manual have been
carefully factory-selected for each set in order to satisfy reo
gulations regarding X·ray radiation. Should replacement be
requirad, replace
only with the value originally used.
• When replacing componants identified by [;iii mark the neces-
sary adjustments indicated. If results do not meet the specified
value, change the component identified by B and repeat the
adjustmant until the specified value is achieved.
(Refer
to R339, R416, R489 adjustment on page 11, 12 .)
When replacing
the part in below table, be usre to perform the
related adjustment .
Part replaced ( I.iiII
Adiustment ( B I
(G Boardl 0653 . R658. R669. T653
(BA Boardl
IC401, IC404. IC405, 0409, R409, R410, R411, R416, R4B9
R412,
R413 , R414, R415, R416, R417, R418..
(+B MAXI
R419.R424, R42S, R448, R479,R480, R488,
R489.
(BA Boardl
IC301, ICJ02, R301, RJ02, R33S, R336 , RJ37 ,
RJ39
RJJ8 , RJJ9, R340, RJ41,RJ42,D304
(HV HOLD DOWNI
(0 Board) R56S, R566
• Voltages are dc with respect to ground unless otherwise noted.
• Readings are taken with a 10 Mn digital multimeter.
• Voltage variations my be noted
due to normal production
tolerances.
• Readings are taken with a color-bar-signal input. (SONY SMC-70)
• :
adjustment to repair.
• no mark: with 15.73kHz color-bar signal received.
(
): with 21.8kHz color-bar signal received.
(( )) : with 30.12kHz color·bar signal received.
• .. : signal path. -
17 -
CPD-1302
CPD-1302
4·3. SCHEMATIC DIAGRAMS
A
B
c
o
E
F
G
H
J
1
Bc
2
t -I
SA -
3
BA (
HV OSC ,R ·G· B DR I VE . )
V. FREQ C TRT, F /V CD NV .
,~ " . ~
4
lra
"O" " '" V I . 'V ~
~ [~ . ; -,0 '1 1.-- -- -I-tl-
. , ';7,; , ~ ' II l L_ _ - I-~
1It --f-l.- ~ ~ _ ' ... l
O--t "" ~~ ,4 1JN ti l I ': '
L90'~
~ ;t "'~~ ~ I
! ' W' [
901 0. 41;1
' W '
-r , ....
1 _. _ __ .....
BC
•2
BA Board IC201 BLOCK
DIAGRAM
CXA1044P
(VIDEO AMP)
OA' 17
'JJ8'
~
I C205 SN7 4 LS 22 )N
!iilliITJ
5 6 7 8 9
10
11
9A ' 3 BA - 12 r= ~ eA-1<
o I
'-- ----- --- ----- - ---------,:-< 10 H - ~
BA -I
BA- I!i
BA -9
( TO CA' ) ) ) ) ) ) ) ) )
\ C""'(ro H}-
:......J
- 18 -
12
13
I
0:
.. n
., . '-
BA - II
D-

4-4. PRINTED WIRING BOARDS
1 2
-BA Board-
A
B
c
o
E
F
G
H
J
IBA I[HV.OSC, R·G·B DRIVE, ]
V. FREQ CTRT, F/V CONV.
3 4 5 6
-21 -
CPD-1302
CPD-1302 I
IBBI[VideO, IF, INT SW'J
R·G·B OUT.
7 8 11
12
IC. Q
326
40 I 409 325 234
404403 321
402 330224
331
IC403 323
420.417329
324
416
407.406422.334
408 423.336
405 424 214
322
328
lC401
320
332
IC405
317
333
IC404
335
411 3~7
414.42
415.427
233
223
421
213
426
419
IC203
IC201
418
429
316.301
412
315 302 428
413
314
206
308
IC202
313
303
304
243
305310.205.241
240
312 lC402
3001 307
3002 297
306
309 295.232
296 222
212
IC302 293
IC301
292
291
311 IC205
231
294
252 221
318
211
IC. Q
- 22-
13
14
15 16
17
0 ADJ
309
224
RV401
234
214
RV403
401
402
403
308
RV402
307
RV231
RV221
405
RV211
RV307
RV306
310
404
408
RV302
407
RV251
306
RV252
302
201
304
205
3001
294
293
303
292
291
RV303
232
RV291
231
222
RV292
221
212
211
204
254
305
256
255
RV301
D
ADJ

CPD·1302 CPD·1302
15
16
17
18 19
20
21 22 23 24 25
26 27
28 29
30
-BB Board-
- Be Board-
- X Board-
1·619·036· 11
X \\ ~ ~
SONY ..... ~L..U~d'
- 23-
- 24-
/

11 12
13
14
15
16
17
---- -------------------------------------------------------------------------------------------- ~ go B~ 11 r- ~,,~
051 6 ~ 2785
I ltEl AB M'i I ~rrf I L
. 50<
.."
'"
000'
0 51 8 25 C2 785
Iv PULSE sw l
0507 15511 9
IlHUiBJ
05 01
O TCI 24E5
IIIDl
....
'"
+ C !l4.l!
~
Ai: i:t.f
I H . ~t l l oa.
SI
05 10
2
50 11 34
Ifj[]jl!J
I ~
05 U
5119
..I.
~~ ---- ~ ------r_----_+----------------------------_+r_----_+_+_r ~ ~-- ~
0509 155 1 19 ¥I""- -~ ~
""
[S]]!I DS09 I Ooo, ~
0518
0518 15511 9
~
18
CPD-1302
19
05001
1 5 2 5 ~!J~ fI
IV
20
0504,505,516
~
CPD-1302
21
0514 VI9G
([IQY]ill]
""
.. .
! IMW I
~~aoo~33 f~ r-J~~'~ -. \~~f. --------------tt---------- ~ =++=4=:::::::::::::::: ~ ::::::::::~ ~:: :::::::::::: ~ ~t= ::::::::::::~tt1
IOOV too v 100 11 11/ 4 ... 1 ~
~ a ""
BA BOARD
D(V' H' C B
LK.f HS W.)
H.V OUT .
~5 1 5
2 ~
A!i47 1t549
33k lOO k
,I/ eW I
I 2 ,
- 0-8
-- 27 --
~
.,
0-3 -0 -4
"0'
120 ...
+I ""
;::-"
J" 1 5011
0-2
,-{TO BA- I
22
0513 FMU-265
~
0-5
23
II~ C!IOQ2
Ml . 330,
12 . , 2t!v
000 "
05003 VIIN
~
.. '
.,
III , f-\:J-
D-6
24
0-7 ---
'1",
.2
GIll . Ir
' ~
25
CalCRT SOCKET!
' '--''''
A
072 \G ~~~ 2688 mT!:l
0731 25C2688
IDYIl
CAIR .G'B OUT!
-- 28 --
26
II
IFOCUS \ I ~
RV1Q l
... .
27
..
"I
... L
;4-
I
<lOV
.J

Jote: The components identified by shading and mark
& are critical for safety. Replace only with
part number specified.
~ote: Les composants identifi6s par une trame et
par une marque & sont d'une importance :::
critique pour la s6curit6. Ne les remplacer
Que
par des pieces de num6ro sp6cifi6.
te:
All capacitors ara in JJF unless otherwisa noted. p : JJJJF 50WV
or less are not indicated except for electrolytics.
All resistors ara in ohms, 1/6W unlass otherwise noted. k :
1000n, M : 1000kn.
m-:nonflammable rasitor.
All variable and adjustable resistors have characteristic curve B,
unless otherwise notad.
~: fusible resitor.
A : internal component.
~ : panel designation.
lit : selected to yield optimum performance.
The components indantified by B in this manual have been
carefully factory-selectee;! for aach sat in order to satisfy re-
gulations regarding X-ray radiation. Should replacement be
required, replace only with
the value originally used.
When replacing components identified by
[;i mark the neces-
sary adjustments indicated. If results do not meet the specified
value, change the component identified by IB and repeat the
adjustmant until the specified value is achieved.
(Refer
to R339, R416, R489 adjustment on page 11, 12.1
When replacing the part in below table, be usre to perform the
related adjustment.
Part replaced 1 ~ ) Adjustment 18 )
Board) 0653, R658. R659. T653
A Board)
401. IC404. IC405, 0409. R409. R410. R411, R416. R489
J12, R413. R414, R415, R416, R417, R418,.
1+8 MAX)
119, R424, R425, R448, R479, R480, R488,
189.
A Board)
301,IC302, R301, R302, R335, R336, R337, R339
A
B
c
D
E
F
G
138, R339, R340, R341, R342, 0304 IHV HOLD DOWN)
Board) R565, R566
Voltages are dc with respect to ground unless otherwise noted.
Readings are taken with a
10 Mn digital multimeter.
Voltage variations my be noted due
to normal production
tolerances.
Readings are taken with a color-bar-signal input. (SONY SMC-701
----=:J :adjustment to repair.
no mark: with 15.73kHz color-bar signal received.
( I: with 21.8kHz color-bar signal received.
(( II : with 3O.12kHz color-bar signal received.
• : signal path
H
J
25
CPD-1302 CPD-1302
1 2 3
N . ~ '" ~-I
RV1 a03 ~ ~
~ L...l....-J I +--
~ ..,
' W ' W T
TlIHO'
SlOt ow,
1"-1 ~
.r
'102
r-'!l
.".
!tOWI
0601,602
U05E
~
.-- Me ~ I~ ~~
I " ac ~ . !I..re 1!'J!\ L __
=- ~ Ae ~ I ~ ~ r~ &
~ I"-''' ~ - ''. - ''' - _ - ;':: - :' - :'~ - '''' - ';''' - K - _ -----''''''
~ _ .............. ,," ...... ; ..... ,,""
the DIIII1'I When ' .... 1CinI the Ie _ cord
blJU .... ~il .. 'thSPK,f,.cIpar111U11'1
blfaw-nlnthildi ... _
BD Board IC206 BLOCK DIAGRAM
SN74LS221N (V. SHIFT)
I R. x t I
v~ cg,t ~t ~
-l16~ -lIS!. -l14, --1131.
2
AjH{~JL
I ...
IB
III 2!l 2Rn t tlND
Caxt Cax t
CLR
4 5
GI Vee CRTL,REG OUT!
6
0203 0264 0261
~ 2 nEm
5
~
~
0667 RU-2M
I1EDilll
0668 RU-2M
GKJ!illJ
7 8 9
10
1C206
1
5 ~ 7 A1 522 1 N
v H
BD-2
.. "'"
0274 OTC II 4E5
Ipc swl
L
: -r P<ro BA-I }
G-3
G-4
y" ,
1
11
J 0531,532
"y .• " ~
,,.,
""
12
0533,534 25C2785
'ffl ' ' ~'
13
R ~
~
1
I~ -
~~ :n
J~JI ~ ~~ mil ""'"
row · 4H m
C557 + 0531
22 0 533
D-12
'" "31 .~
D$3l rr""'\. '-2
I' ''.", 101
''''''1 0. 7" 1 10.
10 k 10. I
10.1 ".
053 1 0532
lrH~~ 5 21 iW,;1 5
~I'f
y.
y.
IV . PAL
'is
<OIItV E
0'"
D(
V'H'C BLK.fH SW,)
H.V OUT.
""
'"
"""
0509
25C2785
Illl::lll
.. ..
'0 '
05l! L _ ZS lli
~
0 50 7 155119
"HB PINI
0518
[l
!
~ ~========~~=========== l~ ~~~~~~
T
TO BB BOARO TO BA BOARD
- 26 -

1 2
-0 Board-
A
B
c
D
E
F
G
H
J
3 4
- 29-
[V.H.C
BlK, fH SW,]
H.V OUT.
5 6
CPD-1302 CPD-1302
[V, H SIFT CRTL.] [Vee
CRTl, REG OUT]
7 8 9
10
IC,O
5001
IC505
511
512
522
514
509
515
508
513
5fo
507
506
517
519
IC504
521
502
520
IC501
501
532
516
534
503
533
518
531
IC,O
[CRT SOCKET]
11
0 ADJ
5001
516
5002
505
504
514
5003
510
536506
512,507
517
509
508
518
RV506
513
526
RV503
51\
529
RV505
523
525
524
RV570
515
RV504
535
RV580
534
528
RV502
533
m
522
0
ADJ
IBDI[SYNC AMP, V SHIFT.]
12 13 14
-H Board-
[IJ [POWER]
15
I· loci· I·I!I·I·I·:I·I·I·I·I
- 30 -
ICA I[R.G.B OUT]
16
-G Board-
"
"
-F Board-
17

CPD·1302
CPD-1302
[f] [POWER]
leA] [R.G.BOUT]
I 15
I 16 I 17
18 19
20 21 22 23
24 25 26 27 28
29
30
31
- G Board-
- CB Board-
-BD Board-
o
@ o -CA Board -'-======:=--1
o 1-619'034'11
- F Board-
-31 - - 32-