Zenith Z-100 PC series Service Manual page 189

-1
DISPLAY CROSSHATCH
a
PATTERN IN 480-LINE
c:
MODE. DISPLAY
c­
SYMMETRICAL? eo
CJ)
NO
::r
o
o
PERFORM
::J
PINCUSHION
::!:
<0
ADJUSTMENT. OK?
I
NO
CHECK E-W
CIRCUITS
SUSPECT VERT.
CIRCUITS, C7513,
OR8U6
CHECK HORIZ.
CHECKN-S
f - I
RETRACE AT
CIRCUITS
~~
SUSPECT HORIl.
CIRCUITS; C7405,
R3005
""0
~
CD
cp
CD
USE VOLTAGE AND RESISTANCE
MEASUREMENT TABLES TO ISOLATE
A FAULTY COMPONENT AFTER
IDENTIFYING THE FAUL TV STAGE.
SUSPECT IC7001
SUSPECT C7417,
07405,07407,07409,
07404,07408, IC7401.
USE VOLTAGE AND
RESISTANCE TABLES
TO ISOLATE FAUL TV
COMPONENTS.
Figure 6-6.
NO
SUSPECT IC7101,
07009, 07008,
07007.
SUSPECT 07103
SUSPECT 07105,
07104.
SUSPECT 07411
SUSPECT IC7402,
07409, LEVEL AND
PHASE
ADJUSTMENTS
SUSPECT IC7501 ,
IC7502
~
CHECK IC7503
OUTPUT, PIN 4.
~
0
NO
SUSPECT IC7503,
T7501
Pin Board Troubleshooting Chart