Read Sony KP-48S65R Service Manual online
CHASSIS
RA-2A
SERVICE MANUAL
MODEL
COMMANDER
DEST. CHASSIS NO.
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KP-48S65R
RM-Y136A
US
SCC-N65J-A
MODEL
COMMANDER
DEST. CHASSIS NO.
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––––––––––––––– –––––– ––––––––––––––
MICROFILM
48
COLOR REAR VIDEO PROJECTOR
∗
Please file according to model size. .......
RM-Y136A
KP-48S65R
– 2 –
KP-48S65R
RM-Y136A
SPECIFICATIONS
Projection system
3 picture tubes, 3 lenses,
horizontal in-line system
horizontal in-line system
Picture tube
7 inch high-brightness
monochrome tubes (6.3 raster
size), with optical coupling and
liquid cooling system
monochrome tubes (6.3 raster
size), with optical coupling and
liquid cooling system
Projection lenses
High performance, large-
diameter hybrid lens F1.1
diameter hybrid lens F1.1
Screen size
48 inches (measured diagonally)
Speaker
Full range speaker 100 mm (3.9
inches) diameter
inches) diameter
Speaker output
15 W x 2
Power requirement
120 V AC, 60 Hz
Power consumption
165 W
Standby mode: 3 W
Standby mode: 3 W
Dimensions
1,106 x 1,337 x 571 mm (W/H/D)
(43
(43
5
/
8
x 52
5
/
8
x 22
1
/
2
inches)
Mass
67 kg (147 lbs 11 oz)
Television system
American TV standards
Channel coverage
VHF: 2 – 13 / UHF: 14 – 69 /
CATV: 1 – 125
CATV: 1 – 125
Antenna
75 ohm external antenna
terminal for VHF/UHF
terminal for VHF/UHF
Inputs/output
VIDEO IN 1
VIDEO IN 2 (VIDEO 2 INPUT)
S VIDEO (4-pin mini DIN):
VIDEO IN 2 (VIDEO 2 INPUT)
S VIDEO (4-pin mini DIN):
Y: 1 Vp-p, 75-ohms
unbalanced, sync negative
C: 0.286 Vp-p (Burst signal)
75 ohms
unbalanced, sync negative
C: 0.286 Vp-p (Burst signal)
75 ohms
VIDEO (phono jack): 1 Vp-p,
75-ohms unbalanced, sync
negative
negative
AUDIO (phono jacks): 500
mVrms (100% modulation)
Impedance : 47 kilohms
Impedance : 47 kilohms
VIDEO IN 3
VIDEO (phono jacks): 1 Vp-p,
VIDEO (phono jacks): 1 Vp-p,
75-ohms unbalanced, sync
negative
negative
AUDIO (phono jacks): 500
mVrms (100% modulation)
Impedance: 47 kilohms
Impedance: 47 kilohms
MONITOR OUT
VIDEO (phono jack): 1 Vp-p,
VIDEO (phono jack): 1 Vp-p,
75-ohms unbalanced, sync
negative
negative
AUDIO (phono jacks): 500 mVrms
(100% modulation),
Impedance: 10 kilohms
Impedance: 10 kilohms
AUDIO OUT (phono jacks): 900
mVrms (100% modulation)
Impedance: 5 kilohms
Impedance: 5 kilohms
Supplied accessories
Remote control RM-Y136A (1)
Size AA (R6) battery (2)
Size AA (R6) battery (2)
Optional accessories
U/V mixer EAC-66
Connecting cables RK-74A, RK-G34,
Connecting cables RK-74A, RK-G34,
VMC-810S/820S, YC-15V/30V
High-contrast protective screen
SCN-48X2
Design and specifications are subject to change without notice.
– 3 –
KP-48S65R
RM-Y136A
SAFETY CHECK-OUT
( US model only )
After correcting the original service problem, perfom the follow-
ing safety checks before releasing the set to the customer:
l.
Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
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.
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.
out to the customer and recommend their replacement.
5. Look for parts which, through functioning, show obvious
signs of deterioration. Point them out to the customer and
recom mend 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 condition of the monopole antenna (if any). 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.
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.
9. Check the antenna temminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
Check leakage as described below.
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 0.5mA (500 microampers) . Leak-
age current can be measured by any one of three methods.
return to chassis, must not exceed 0.5mA (500 microampers) . Leak-
age 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
usc these instruments.
usc 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” indica-
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOM that is suitable. NearIy all bat-
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOM that is suitable. NearIy all bat-
tery operated digital multimeters that have a 2V AC range
are suitable. (See Fig. A)
are suitable. (See Fig. A)
HOW TO FIND A GOOD EARTH GROUND
A cold-water pipe is guaranteed earth ground;the cover-plate re-
taining 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
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-l00 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
water pipe with an ohmmeter. The reading should be zero ohms. If
a cold-water pipe is not accessible, connect a 60-l00 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)
screw is at ground potential. (See Fig. B)
0.15
µ
F
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
To Exposed Metal
Parts on Set
Parts on Set
Fig. A. Using an AC voltmeter to check AC leakage.
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
Fig. B. Checking for earth ground.
– 4 –
KP-48S65R
RM-Y136A
TABLE OF CONTENTS
Section
Title
Page
1. GENERAL
Step 1 : Installing the projection TV ................................................... 5
Step 2 : Hook up .................................................................................. 6
Step 3 : Setting up the remote control ................................................. 9
Step 4 : Setting up the projection TV automatically (AUTO SET UP) .... 10
Changing the menu language ............................................................ 12
Watching the TV ................................................................................ 12
Watching two programs at one time-PIP ........................................... 13
Freezing the picture (FREEZE) ......................................................... 14
Adjusting the picture (VIDEO) ......................................................... 14
Adjusting the color temperature (TRINITONE) ............................... 15
Selecting the video mode (VIDEO) .................................................. 15
Adjusting the sound (AUDIO) .......................................................... 15
Using audio effect (SURROUND) .................................................... 16
Selecting stereo or bilingual programs (MTS) .................................. 16
Setting the speaker switch (SPEAKER) ............................................ 16
Setting audio out (AUDIO OUT) ...................................................... 17
Setting daylight saving time (DAYLIGHT SAVING) ...................... 17
Setting the clock (CURRENT TIME SET) ....................................... 17
Setting the timer to turn the projection TV on and off (ON/OFF TIMER) ....... 18
Customizing the channel names (CHANNEL CAPTION) ............... 18
Blocking out a channel (CHANNEL BLOCK) ................................. 19
Setting your favorite channels (FAVORITE CHANNEL) ................ 19
Setting video labels (VIDEO LABEL) ............................................. 19
Setting Caption Vision (CAPTION VISION) ................................... 20
Operating video equipment ............................................................... 20
Operating a cable box or DBS receiver ............................................. 21
Troubleshooting ................................................................................. 22
Index to parts and controls ................................................................ 22
Step 2 : Hook up .................................................................................. 6
Step 3 : Setting up the remote control ................................................. 9
Step 4 : Setting up the projection TV automatically (AUTO SET UP) .... 10
Changing the menu language ............................................................ 12
Watching the TV ................................................................................ 12
Watching two programs at one time-PIP ........................................... 13
Freezing the picture (FREEZE) ......................................................... 14
Adjusting the picture (VIDEO) ......................................................... 14
Adjusting the color temperature (TRINITONE) ............................... 15
Selecting the video mode (VIDEO) .................................................. 15
Adjusting the sound (AUDIO) .......................................................... 15
Using audio effect (SURROUND) .................................................... 16
Selecting stereo or bilingual programs (MTS) .................................. 16
Setting the speaker switch (SPEAKER) ............................................ 16
Setting audio out (AUDIO OUT) ...................................................... 17
Setting daylight saving time (DAYLIGHT SAVING) ...................... 17
Setting the clock (CURRENT TIME SET) ....................................... 17
Setting the timer to turn the projection TV on and off (ON/OFF TIMER) ....... 18
Customizing the channel names (CHANNEL CAPTION) ............... 18
Blocking out a channel (CHANNEL BLOCK) ................................. 19
Setting your favorite channels (FAVORITE CHANNEL) ................ 19
Setting video labels (VIDEO LABEL) ............................................. 19
Setting Caption Vision (CAPTION VISION) ................................... 20
Operating video equipment ............................................................... 20
Operating a cable box or DBS receiver ............................................. 21
Troubleshooting ................................................................................. 22
Index to parts and controls ................................................................ 22
2. DISASSEMBLY
2-1.
Rear Board Removal ............................................................. 24
2-2.
Chassis Assy Removal .......................................................... 24
2-3.
Service Position ..................................................................... 24
2-4.
HA Board Removal ............................................................... 24
2-5.
Beznet Assy Removal ............................................................ 25
2-6.
Mirror Cover Assy Removal ....................................................... 25
Section
Title
Page
2-7.
High-Voltage Cable Installation and Removal ...................... 25
2-8.
Picture Tube Removal ........................................................... 25
2-9.
Service stay Assy How to use and Carry Back Service stay Assy ...... 26
(1) Picture Tube Bracket Assy Removal ...................................... 26
(2) Setting of Service stay Assy ............................................ 27
(3) Install a Chassis Assy and Carry the Picture Tube Bracket ..... 27
(1) Picture Tube Bracket Assy Removal ...................................... 26
(2) Setting of Service stay Assy ............................................ 27
(3) Install a Chassis Assy and Carry the Picture Tube Bracket ..... 27
3. SET-UP ADJUSTMENTS
........................................................ 28
4. SAFETY RELATEDP ADJUSTMENTS
............................. 41
5. CIRCUIT ADJUSTMENTS
...................................................... 43
6. DIAGRAMS
6-1. Block Diagram (1) ..................................................................... 45
Block Diagram (2) ..................................................................... 48
Block Diagram (3) ..................................................................... 50
Block Diagram (3) ..................................................................... 50
6-2. Frame Schematic Diagram ........................................................ 51
6-3. Circuit Boards Location ............................................................ 54
6-4. Printed Wiring Boards and Schematic Diagrams ...................... 54
6-3. Circuit Boards Location ............................................................ 54
6-4. Printed Wiring Boards and Schematic Diagrams ...................... 54
• A Board ................................................................................... 55
• G Board ................................................................................... 62
• PT Board ................................................................................. 69
• CR, CG, CB Boards ................................................................ 75
• Z Board .................................................................................... 79
• HA Board ................................................................................ 81
• G Board ................................................................................... 62
• PT Board ................................................................................. 69
• CR, CG, CB Boards ................................................................ 75
• Z Board .................................................................................... 79
• HA Board ................................................................................ 81
6-5. Semiconductors ......................................................................... 83
7. EXPLODED VIEWS
7-1. Cover ......................................................................................... 85
7-2. Chassis ....................................................................................... 86
7-3. Picture Tube ................................................................................ 87
7-2. Chassis ....................................................................................... 86
7-3. Picture Tube ................................................................................ 87
8. ELECTRICAL PARTS LIST
................................................... 88
(CAUTION)
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
WARNING!!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECT-
ED TO THE AC POWER LINE.
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECT-
ED 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 TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.