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Sony Trinitron PVM-14L2 Service Manual
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49
51
Table of Contents
Default Chapter
3
Table of Contents
3
1 Service Informations
7
Board Locations (14 Inch)
7
Disassembly (14 Inch)
8
Top Cover and Rear Cover Removal (14 Inch)
8
B and B1 Boards Removal (14 Inch)
9
Q Board Removal (14 Inch)
10
G and Q Block Assy Removal (14 Inch)
11
G Board Removal (14 Inch)
11
C Board Removal (14 Inch)
12
Picture Tube and Bezel Assy Removal (14 Inch)
12
H, J and X Boards Removal (14 Inch)
13
Removal of Anode Cap (14 Inch)
13
Board Locations (20 Inch)
14
Disassembly (20 Inch)
15
Top Cover and Rear Cover Removal (20 Inch)
15
B and B1 Boards Removal (20 Inch)
16
Q Board Removal (20 Inch)
17
G and Q Block Assy Removal (20 Inch)
18
G Board Removal (20 Inch)
18
J and H Boards Removal (20 Inch)
19
Picture Tube, Bezel Assy and X Board Removal (20 Inch)
20
Removal of Anode Cap (20 Inch)
21
2 Set-Up Adjustment
23
Equipment Required
23
Service Mode
23
Operating the Service Mode
23
Preparations (1)
23
Executing FACTORY LOAD
24
Executing FACTORY SAVE
24
Factory Set
24
Service Mode Screen Display
25
Writing Model Data
29
Picture Output
29
AC Input Voltage Setting
29
Preparation (2). Initialization
29
Free-Run Frequency Adjustment
30
Landing Adjustment
30
14 Inch
31
20 Inch
31
H Blanking Adjustment
32
Defection Adjustment
32
DY Inclination Distortion Check
32
Picture Size Specifications
33
H. Size
33
V. Size
33
Convergence Adjustment (1)
34
V-STAT Mg Knob
34
Deflection Yoke Neck Rotation Adjustment
35
Convergence Adjustment (2)
35
White Balance Adjustment (15K)
36
Group of Models Inch 14
36
G2 Adjustment
36
Conditions
36
White Balance Adjustment (33 K)
37
SUB BRIGHT, SUB CONTRAST Adjustment (15 K)
37
White Balance Interference Correction Adjustment
38
NTSC Composite Adjustment
38
PAL Composite Adjustment
38
COMPONENT Adjustment
38
SUB BRIGHT, SUB CONTRAST Adjustment (33 K)
38
SDI Adjustment
38
Focus Adjustment
39
BLK Adjustment
39
FBT Focus VR Controls (20 Inch)
39
3 Safety Related Adjustment
41
+B Voltage Check
41
G Board (HV Protector Circuit)
41
High Tension Regulator Confirmation
42
HV Protector Circuit Confirmation
42
4 Electrical Adjustments
43
Equipment Required
43
B Board Adjustments
44
Preparation of Signals
44
Test Point
44
NTSC SETUP 0 Mode Adjustment
45
Connection Diagram
45
Y/C Input
45
Composite Input
46
NTSC SETUP 7.5 Mode Adjustment
46
Y/C Input
46
PAL Mode Adjustment
47
Composite Input
47
Y/C Input
47
Y PBPR BETACAM SETUP 0 Signal
48
Y PBPR SMPTE (601) Signal
48
Y PBPR BETACAM SETUP 7.5 Signal
49
5 Theory of Operation
51
B Board
51
Input Section - Decoder Section
51
Video Signal and Y/C Signal
51
CXA1739S Peripheral Circuit
52
ABL Circuit
52
Blanking Pulse Shaping
52
BLUE ONLY Circuit
52
Defection and High Voltage Circuit
53
Sync Signal Processing Circuit
53
Horizontal Output Circuit
53
Vertical Output Circuit
53
Power Supply Circuit
54
Power Factor Improvement Block
54
Power Regulator for the Main Power Supply
54
Overvoltage Protection and Over-Current Protection Circuits
55
6 Semiconductors
57
Transistor, Diode
58
7 Spare Parts
61
Notes on Repair Parts
61
Safety Related Components Warning
61
Standardization of Parts
61
Exploded Views
62
G, Q Board Section (14 Inch)
64
Chassis and Bezel Assy Section (14 Inch)
66
Picture Tube Section (14 Inch)
68
Top Cover Section (20 Inch)
70
G, Q Boards Section (20 Inch)
72
Chassis and Bezel Assy Section (20 Inch)
74
Picture Tube Section (20 Inch)
76
Electrical Parts List
78
8 Block Diagrams
135
B (1/3), B1, Q (1/2), G (1/2)
135
B (2/3), C, H (1/2)
136
G (2/2), J, Dy
138
9 Diagrams
139
Resistor
139
Capacitor
139
Schematic Diagrams and Board Layouts
140
C (Pvm-14L2)
152
C (Pvm-20L2)
154
C (Pvm-14L2)
157
Leakage Test
173
Safety Check-Out
173
Using an AC Voltmeter to Check AC Leakage
173
C (Pvm-20L2)
174
Other manuals for Sony Trinitron PVM-14L2
Instructions For Use
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Sony Trinitron PVM-14L2 Specifications
General
Screen Size
14 inches
Display Type
CRT
Aspect Ratio
4:3
Weight
15.4 kg
CRT Type
Trinitron
Input Connectors
S-Video
Audio Inputs
RCA
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