Sony TRINITRON KV-32HS20 - Disassembly; Rear Cover Removal; Chassis Assembly Removal; Service Position

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KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H

1-1. REAR COVER REMOVAL

1-2. CHASSIS ASSEMBLY REMOVAL 1-3. SERVICE POSITION

SECTION 1: DISASSEMBLY

CAUTION! - Heat sink on IC5004 is -15V. Care must be

taken not to allow heat sink to touch any other components.

Lift lever up on the right and left sides of the chassis bracket

and gently pull the chassis assembly away from the bezel.

Remove +BVTP 4 x 16 screws from

areas indicated with a circle.

Located in:

KV-36HS20/36HS20H/

36XBR450/36XBR450H Only

Pull up and rotate both the A and D boards in order to

service the unit.

Main Page

Service Manual1
Table of Contents2
Section Title2
Speciﬁ Cations3
Warnings and Cautions4
Safety Check-Out5
Self-Diagnostic Function6
Disassembly8
Rear Cover Removal8
Chassis Assembly Removal8
Service Position8
Picture Tube Removal9
Anode Cap Removal Procedure9
Set-Up Adjustments10
Beam Landing10
V-Pin and V-Cen Adjustment11
Convergence11
2-3.1. Vertical and Horizontal Static Convergence11
2-3.2. Operation of BMC (Hexapole) Magnet11
2-3.3. TLH Plate Adjustment11
2-3.4. Screen Corner Convergence12
2-3.5. Dynamic Convergence Adjustment12
Focus Adjustment12
Screen (G2)12
Picture Quality Adjustments13
2-6.1. Video Input - Two Picture Sub Contrast Adjustment13
2-6.2. Video Input - Sub Hue/Sub Color Adjustment13
2-6.3. RF Input - Two Picture Sub Contrast Adjustment14
2-6.4. RF Input - Sub Hue/Sub Color Adjustment14
White Balance (CRT) and Sub Bright Adjustment15
Raster Center Adjustment15
Picture Distortion Adjustments15
2-9.1. NTSC (DRC) Full Mode Adjustment15
2-9.2. 1080I HD Mode Adjustment16
2-9.3. Vertical Compresses Mode Check and Conﬁ Rmation16
Safety Related Adjustments17
HV Service Adjustments17
B+ Max Conﬁ Rmation17
HV Service Flowchart17
Circuit Adjustments18
Setting the Service Adjustment Mode18
4-1.1 Resetting the Data18
Memory Write Conﬁ Rmation Method18
Remote Adjustment Buttons and Indicators18
Diagrams48
Circuit Board Location48
Printed Wiring Boards and Schematic Diagrams48
Diagrams Block Diagram49
A Board53
B Board61
BC Board71
C Board73
D Board75
HA Board83
HB Board84
S Board Schematic Diagram85
Voltage List85
U Board86
W Board88
Semiconductors90
Exploded Views92
Chassis92
Picture Tube (KV-32HS20/32XBR450 ONLY)93
Picture Tube (ALL EXCEPT KV-32HS20/32XBR450)94
Electrical Parts List95
Schematic Diagrams188

Sony TRINITRON KV-32HS20 - Disassembly; Rear Cover Removal; Chassis Assembly Removal; Service Position

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