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TUBE PLACEMENT CHART
VZOZ
6CG8~
MIXER
OSC
VZ01
RFAMP
OFF-ON (PUSH PULL)
BRIGHTNESS
HORIZ HOLD
VERT HOLD
\o/ \L PANEL
AC RECPT ITVI
ri/-
OFF- ON TREBLE
A U D I O INPUT
'
V ^ f^
LOUDNESS
BASS OFF-ON
PHONO
1 S T V I D E O I F A M P
2ND VIDEO IF AMP
3RD VIDEO IF AMP
AC RECPT 1AMPI
±]
VaTAGE DIVIDER
/T\ 60G6GT I
>—s*
J
V14 \
V15
"1 6CD6GA I
^ 6AU4GTA
HORIZ OUTPUT
DAMPER
TOP VIEW
HORIZ-AFC^ ^ (J )
( O )
>
>
S ' O
7 g z
n - O
n < X
in u '
01 > '
w C O
9
> n
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to.
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Wl
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TUBE FAILURE CHECK CHART
The following chart lists tubes whose failures are most likely to produce indicated symptoms. Refer to tube placement chart for location and type of tube.
POWER SUPPLY FAILURE
No raster, no sound V17
SWEEP FAILURE
No raster, has sound Fuse (M2), Rectifier (Ml), VIS.W, V15, V16.V18
No vertical deflection
VII, V12
Poor vert, linearity or foldover
Vll, V12
Poor horiz. linearity or foldover V13, V14, V15
Narrow picture V13, V14, V15, V17
Vert, off freq. Vll
Horiz. off freq. V13
LOSS OF PICTURE OH SOUND
No pic, no sound, has raster
VI, V2, V3, Diode (M3), V4, V9
No pic, no sound, has snow V201, V202, VI, V9
No pic, has sound, has raster V4, V18, V9
Has pic, no sound V6, VI, V9
Overloaded picture V5
SYNC FAILURE
No vert, sync V10
No horiz. sync
V10, Ml
No vert, or horiz. sync V10
O
s
70
SET 404
FOLDER
3
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