- 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
Disassembly for Service . . . . . . . . . . . . . . . . . . 8
Disassembly for CRT Replacement . . . . . . . . . 8
Location of Screws . . . . . . . . . . . . . . . . . 9
Identification of Components . . . . . . . . 10
Chassis Service Adjustment Procedures . . . .11
131.0V B+ Voltage Confirmation . . . . . .11
Source Voltage Chart . . . . . . . . . . . . . . .11
B+ 5V Source Voltages. . . . . . . . . . . . . .11
MPU 5V . . . . . . . . . . . . . . . . . . . . . . . . .11
Standby 5V . . . . . . . . . . . . . . . . . . . . . . .11
B+ 9V Source Voltage . . . . . . . . . . . . . .11
B+ 12V (Stand-by) . . . . . . . . . . . . . . . . .11
High Voltage Check . . . . . . . . . . . . . . . .11
Location of Components. . . . . . . . . . . . 12
Purity and Convergence Procedures . . . . . . 13
Serviceman Mode (Electronic Controls) . . . . 15
Entering Serviceman Mode . . . . . . . . . 15
Toggle between Modes. . . . . . . . . . . . . 15
Exiting the Serviceman Mode . . . . . . . . 15
Sub-Data Adjustment . . . . . . . . . . . . . . 16
Cut-Off Adjustment . . . . . . . . . . . . . . . . 16
Options Adjustment . . . . . . . . . . . . . . . 17
MTS Adjustment . . . . . . . . . . . . . . . . . . 17
To Check Purity . . . . . . . . . . . . . . . . . . 18
Helpful Hints . . . . . . . . . . . . . . . . . . . . . 18
Instructional Flow Chart
for Serviceman Mode . . . . . . . . . . . . . . . . 19
Service Adjustments
(Electronic Control). . . . . . . . . . . . . . . . . . 21
Sub-Brightness . . . . . . . . . . . . . . . . . . . 21
Video Adjustment Level . . . . . . . . . . . . 21
Sub-Contrast. . . . . . . . . . . . . . . . . . . . . 21
Tint/Color Adjustment . . . . . . . . . . . . . . 21
Color Temperature Adjustment . . . . . . . 22
Horizontal Centering . . . . . . . . . . . . . . . 23
Audio Adjustment . . . . . . . . . . . . . . . . . 23
MTS Circuit Adjustment . . . . . . . . . . . . 23
Clock Adjustment (Sb) . . . . . . . . . . . . . 24
Vertical Size . . . . . . . . . . . . . . . . . . . . . 24
Service Adjustments
(Mechanical Controls). . . . . . . . . . . . . . . . 24
VCO Field Adjustment L105 . . . . . . . . . 24
Focus (Part of T551). . . . . . . . . . . . . . . 24
Hotel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Clone Box . . . . . . . . . . . . . . . . . . . . . . . . 25
Setting Master TV . . . . . . . . . . . . . . . . . 25
Uploanding TV Settings
into Clone Box . . . . . . . . . . . . . . . . . 25
Downloading Settings
into other TV . . . . . . . . . . . . . . . . . . 26
Setting individual Volume
Settings . . . . . . . . . . . . . . . . . . . . . . 26
Testing the setttings in
the Clone Box . . . . . . . . . . . . . . . . . 27
Testing the Clone Box
Battery . . . . . . . . . . . . . . . . . . . . . . 27
Resetting the TV to normal mode . . . . . 27
Switching to Comercial
(Hotel) Mode . . . . . . . . . . . . . . . . . . 27
Switching to Normal TV Mode . . . . . . . 27
IC101 VCJ IN/OUT Pins and Functions . . . . . 28
IC001 MPU IN/OUT Pins and Functions. . . . . 29
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
