Pcb Layout - Zenith C27A25 Service Manual

1 2
G
A B
QX3504
DAG
R3507
CRT1
F
G2
E
204-03397-07
TGND
MA IN
TUNNE R
D
1
1
E
C
B C
E
C
B
B
1 8
A
A
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER "X" IN THEIR
CM154
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
3 4
B C
1
EAPROM
MICRO
PR OCE SSOR
C E
B
B
C E
VIDEO
PIP
PR OCE SS OR
PR OCE SS OR
PIP
TUNNE R
AU DIO
PR OCE SS OR
B C

PCB Layout

5 6
ON/OFF VOL-UP VOL-DWN
D E
G
1
C
B E
C
B E
C
B E
AU DIO
PR OCE SS OR
1 10
AUDIO
AMPLIFIER
D E
6-11
7 8
CH-UP CH-DWN MENU
F G
CO LD
HO T
W031
CO LD HO T
PROCESS
DIRECTION
HO T
CO LD
B
VE RT.OUT P UT C E
F G
20 4-03 397 -07 CO RE CHAS SIS
ALL SYMBOLS WITH "M" ON END OF DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT
9 10
H
LINE
FILTER
DIRECTION
1
H.O.T.
H
XC SHEET 11