Sony KDP-51WS550 Training Manual page 4

Table 1-1 – AX-1 Chassis PCB Functional Descriptions
Board
A
Field
Repairable
AD
NOT Field
Repairable
BM
NOT Field
Repairable
C
CR, CG, CB
Field
Repairable
D
Field
Repairable
1. AX-1 Chasis PCB Interconnections and Functional Descriptions
Circuits Board Replacement
•
A/C Input
•
AC Relay
•
Zero Protect
•
STBY 5V
PS
•
+9V Reg.
•
+3.3V Reg.
•
+5V Reg.
•
Main & Sub.
Tuners
•
Audio Amp.
•
PJED
•
Digital
REGI.
•
-5V Reg.
•
+3.3V Reg.
•
AD-DRC
•
MID-XA
•
A/D SRAM
•
+1.8V Reg.
•
+2.5V Reg's
•
RGB Drive
•
H & V Drive
•
Pin Cushion
•
HV-Power
Supply
•
Pri.-Power
Supply
•
Audio +/-
14V
•
+210V
•
+12V Reg.
•
+/-15V (Pri)
•
+/-17V
•
+33V
•
+135V
•
+/-15V
•
(T5200
Vert.)
•
Heater
(T5200)
Adjustments
•
Write PJED
service data
•
Touch-up
Registration
•
Main Picture
Contrast, Color,
and Hue
•
Size & Geometry
•
Check G2
•
Check Electrical
Focus
•
Check Hold-
Down
2
Comments
AC Rect. (D6005)
feeds Q-Box,
Primary and HV
Power Supplies
Can be
disconnected. Unit
remains powered.
With total mis-
convergence
displayed.
Can be
disconnected. Unit
remains powered
with No Audio &
Video
Can be
disconnected. Unit
remains powered
with no video
Cannot be
disconnected. Unit
will not be powered
ON. Two relay clicks
can be heard (AC
Relay ON and then
OFF). No self-
diagnostic
Stdby/Timer LED
flash sequence.