- 3 -
Important Safety Notice . . . . . . . . . . . . . . . . . . 2
Safety Precautions . . . . . . . . . . . . . . . . . 2
Service Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Horizontal Oscillator Disable Circuit . . . . 5
Receivers Feature Table . . . . . . . . . . . . . . . . . . 6
Location of Controls (Receiver)
Receiver Front Control Panel . . . . . . . . . 7
Location of Controls (Remote)
EUR511502 . . . . . . . . . . . . . . . . . . . . . . 8
Disassembly for Service . . . . . . . . . . . . . . . . . . 9
Disassembly for CRT Replacement . . . . . . . . . 9
Chassis Service Adjustment Procedures . . . 10
131.0V B+ Voltage Confirmation . . . . . 10
Source Voltage Chart . . . . . . . . . . . . . . 10
High Voltage Check . . . . . . . . . . . . . . . 10
Purity and Convergence Procedures . . . . . . .11
Serviceman Mode (Electronic Controls) . . . . 14
Entering Serviceman Mode . . . . . . . . . 14
Toggle between Modes. . . . . . . . . . . . . 14
Exiting the Serviceman Mode . . . . . . . . 14
Sub-Data Adjustment (B) . . . . . . . . . . . 15
Cut-Off Adjustment (C) . . . . . . . . . . . . . 15
Pin Cushion Adjustment (D) . . . . . . . . . 16
MTS Adjustment (M). . . . . . . . . . . . . . . 16
PIP Adjustment (P) . . . . . . . . . . . . . . . . 17
Options Adjustment (S) . . . . . . . . . . . . 18
Comb Filter Adjustment (X) . . . . . . . . . 19
To Check Purity . . . . . . . . . . . . . . . . . . 20
Helpful Hints . . . . . . . . . . . . . . . . . . . . . 20
Instructional Flow Chart
for Serviceman Mode . . . . . . . . . . . . . . . . 21
Service Adjustments
(Electronic Control). . . . . . . . . . . . . . . . . . 24
Sub-Brightness . . . . . . . . . . . . . . . . . . . 24
Sub-Contrast. . . . . . . . . . . . . . . . . . . . . 24
Tint/Color Adjustment . . . . . . . . . . . . . . 24
Color Temperature Adjustment . . . . . . . 25
Complete Adjustment . . . . . . . . . . . . . . 25
Horizontal Centering . . . . . . . . . . . . . . . 26
MTS Circuit Adjustment . . . . . . . . . . . . 26
Input Level Adjustment . . . . . . . . . . . . . 26
Stereo Separation Adjustment . . . . . . . 26
Clock Adjustment . . . . . . . . . . . . . . . . . 27
Vertical Size . . . . . . . . . . . . . . . . . . . . . 27
Service Adjustments
(Mechanical Controls). . . . . . . . . . . . . . . . 27
VCO Field Adjustment L105 . . . . . . . . . 27
Focus (Part of T551). . . . . . . . . . . . . . . 27
Audio Signal Path Block Diagram . . . . . . . . . 28
Video Signal Path Block Diagram . . . . . . . . . 29
Video-Chroma Signal Path Block Diagram . . 30
IC101 VCJ IN/OUT Pins and Functions . . . . . 31
IC001 MPU IN/OUT Pins and Functions. . . . . 32
Component Identification . . . . . . . . . . . . . . . . 33
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Schematics and Voltages
A-Board (Left Portion) . . . . . . . . . .Sheet-1A
A-Board (Right Portion) . . . . . . . . .Sheet-2A
C-Board . . . . . . . . . . . . . . . . . . . . . .Sheet-1B
Waveforms . . . . . . . . . . . . . . . . . . . .Sheet-1B
Layouts
A & C-Boards. . . . . . . . . . . . . . . . . .Sheet-1B
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