Sony KP-44DX2U Service Manual ▷ View online
- 1 -
KP-44DX2
RM-948
SERVICE MANUAL
AE-6X
CHASSIS
MODEL
COMMANDER
DEST
CHASSIS NO.
KP-44DX2
RM-948
UK
SCC-Q84S-A
MODEL
COMMANDER
DEST
CHASSIS NO.
PROJECTION TV
RM-948
KP-44DX2
- 2 -
KP-44DX2
RM-948
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Specifications ......................................................
3
Connectors ..........................................................
4
1. SELF DIAGNOSIS FUNCTION
1-1.
AE-6X Self Diagnostic Software .......................
5
2. GENERAL ...................................................................
6
3. DISASSEMBLY
3-1.
Rear Board Removal ..........................................
15
3-2.
Main Bracket Block Removal ............................
15
3-3.
Service Position .................................................
15
3-4.
Front Panel Removal .........................................
15
3-5.
Resistor Assembly (Focus Pack) Removal .......
16
3-6.
H1 and H3 Board Removal ................................
16
3-7.
Beznet Block Removal .......................................
17
3-8.
High Voltage Cable Removal and Installation ....
17
3-9.
AP and D Board Removal ..................................
17
3-10. Terminal Board Removal ....................................
18
3-11. G Board Removal ...............................................
18
3-12. A Board Removal ...............................................
19
3-13. Chassis Block Removal ......................................
19
3-14. Picture Tube Removal .........................................
19
4. SET-UP ADJUSTMENTS
4-1.
Screen Voltage Adjustment
(Rough Alignment) ............................................
20
4-2.
Screen (G2) Adjustment ....................................
20
4-3.
Focus Rough Adjustment ..................................
20
4-4.
Deflection Yoke Tilt Adjustment ........................
20
4-5.
2-Pole Magnet Adjustment .................................
21
4-6.
4-Pole Magnet Adjustment .................................
21
4-7.
Green, Red and Blue Focus Adjustment ............
21
5. SAFETY RELATED ADJUSTMENT
5-1.
HV Hold-Down Adjustment .............................
22
6. ELECTRICAL ADJUSTMENTS
6-1.
Adjustments with Commander ...........................
23
6-1-1. How to Select Each Mode ..............................
23
6-1-2. Programming the Remote Commander
for Operation in Service Mode .......................
23
6-1-3. Setting the TV into Service Mode ..................
23
6-1-4. Screen Display for Service Menu ..................
24
6-1-5. Service List (Projector Engine) ......................
25
6-2. Registration Adjustment ................................................
27
6-2-1. Setup for Adjustment .....................................
27
6-2-2. Main Deflection Adjustment ..........................
27
6-2-3. Operation Method for
Projector Engine Mode ...................................
28
6-2-4. Projector Engine Adjustment
(Sub Deflection Adjustment) ..........................
29
6-3.
Auto Convergence Offset ...................................
31
6-4.
White Balance Adjustment ..................................
31
6-5.
Sub Bright Adjustment .......................................
31
6-6.
Sub Color Adjustment ........................................
31
6-7.
Auto Convergence Error Code List ....................
32
6-8.
Test-Test Mode ...................................................
33
7. DIAGRAMS
7-1.
Block Diagrams ..................................................
35
7-2.
Circuit Boards Location ......................................
40
7-3.
Schematic Diagrams and Printed Wiring
Boards .................................................................
40
A Board Schematic Diagram (1/2) ....................
41
A Board Schematic Diagram (2/2) ...................
42
A Printed Wiring Board ....................................
43
AP Board Schematic Diagram ............................
45
AP Printed Wiring Board .................................
49
D Board Schematic Diagram ..............................
46
D Printed Wiring Board ....................................
50
G Board Schematic Diagram ..............................
52
G Printed Wiring Board ....................................
51
M2 Board Schematic Diagram ............................
53
M2 Printed Wiring Board .................................
54
CB, ZB, H1 and H3 Board
Schematic Diagrams ...........................................
55
CB, ZB, H1 and H3 Printed Wiring Boards ....
54
CG, ZG and H2 Board Schematic Diagrams .....
56
CG, ZG and H2 Printed Wiring Boards ...........
57
CR and ZR Board Schematic Diagrams .............
58
CR and ZR Printed Wiring Boards ...................
57
7-5.
Semiconductors ..................................................
59
7-6.
IC Block Diagrams .............................................
62
8. EXPLODED VIEWS
8-1.
Screen and Cover Block ...................................
65
8-2.
Control Panel and Cabinet Block ........................
66
8-3.
Main Bracket Block ............................................
67
8-4.
Picture Tube Block .............................................
68
9. ELECTRICAL PARTS LIST ..................................
69
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
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.
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.
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP.
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.
- 3 -
KP-44DX2
RM-948
WARNING (UK Models only)
The flexible mains lead is supplied connected to a B.S. 1363 fused
plug having a fuse of 5 AMP rating. Should the fuse need to be
replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie one
that carries the
plug having a fuse of 5 AMP rating. Should the fuse need to be
replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie one
that carries the
ASA
T
mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT SUIT-
ABLE FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD
BE CUT OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG
SEVERED FROM THE MAINS LEAD MUST BE DESTROYED AS A
PLUG WITH BARED WIRES IS DANGEROUS IF ENGAGED IN A
LIVE SOCKET.
ABLE FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD
BE CUT OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG
SEVERED FROM THE MAINS LEAD MUST BE DESTROYED AS A
PLUG WITH BARED WIRES IS DANGEROUS IF ENGAGED IN A
LIVE SOCKET.
When an alternative type of plug is used, it should be fitted with a
5 AMP FUSE, otherwise the circuit should be protected by a 5 AMP
FUSE at the distribution board.
5 AMP FUSE, otherwise the circuit should be protected by a 5 AMP
FUSE at the distribution board.
How to replace the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
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- 4 -
KP-44DX2
RM-948
Connected
Not Connected (open) * at 20Hz - 20kHz
Pin No
1
2
4
Signal
Signal level
1
Audio output B
(right)
(right)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
Output impedence : Less than 1kohm*
2
Audio input B
(right)
(right)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
Output impedence : More than 10kohm*
3
Audio output A
(left)
(left)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
Output impedence : Less than 1kohm*
4
Ground (audio)
5
Ground (blue)
6
Audio input A
(left)
(left)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
Output impedence : More than 10kohm*
7
Blue input
0.7 +/- 3dB, 75 ohms positive
8
Function select
(AV control)
(AV control)
High state (9.5-12V) : Part mode
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF
9
Ground (green)
10
Open
11
Green
Green signal : 0.7 +/- 3dB, 75 ohms,
positive
positive
12
Open
13
Ground (red)
14
Ground (blanking)
15
_
_
Red input
0.7 +/- 3dB, 75 ohms, positive
_
(S signal Chroma
input)
input)
0.3 +/- 3dB, 75 ohms, positive
16
Blanking input
(Ys signal)
(Ys signal)
High state (1-3V) Low state (0-0.4V)
Input impedence : 75 ohms
Input impedence : 75 ohms
17
Ground (video
output)
output)
18
Ground (video
input)
input)
19
Video output
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
(-3+10dB)
20
_
_
Video input
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
(-3+10dB)
_
Video input
Y (S signal)
Y (S signal)
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
(-3+10dB)
21
Common ground
(plug, shield)
(plug, shield)
21 pin connector
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17
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13
11
9
7
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20
18
16
14
12
10
8
6
4
2
21
Rear Connection Panel
Front Connection Panel
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