Read Sharp TU-32GD1E (serv.man8) Service Manual online
42
TU-32GD1E
TU-37GD1E
TU-37GD1E
TROUBLE SHOOTING TABLE
(Continued)
No video output (5)
Is OSD including the men
u and the list of
prog
rams displa
y
ed in the panel?
No digital broadcasting displa
y
ed in the
panel of the liquid cr
ystal
TV
.
<On input of the digital tuner>
NO
Is the digital signal including Data and CLK
output to Pins (2-11)(13) of P8903?
NO
Chec
k P8903 thr
u IC8601, IC8601, IC8801
thr
u 8802, IC8804 thr
u 8805 and per
ipher
al
circuits
.
Are there no prob
lems with v
oltage at Pin (2)
of
TU9001 (5V) and Pin (50) and Pin (64) of
IC9008 (1.8V and 3.3V respectiv
ely)?
Is v
oltage at Pin (2)(3) of P9001 not lo
w
er
than 10V?
NO
NO
Chec
k the PWB (RDENCA064WJZZ).
Is the D
VI-IN signal input to Pins (190-200)
of IC402 (3D-YC)?
NO
Chec
k IC402 thr
u SC2101.
NO
Confir
m per
ipher
al circuits of
TU9001, and
tr
y to replace
TU9001.
Chec
k IC9001 thr
u 9002, IC9009 thr
u 9014,
IC9004 and per
ipher
al circuits
.
Is the
VIDEO signal output to Pins (124-
133) of IC402?
NO
Chec
k IC402 and per
ipher
al circuits
.
YES
YES
YES
YES
YES
YES
Is 4MHz CLK output from Pin (10) of
TU9001?
Chec
k the signal of
TU9001 thr
u IC9008
and IC8601 thr
u IC9008, and per
ipher
al
circuits
.
YES
Chec
k circuits IC802/IC3350/IC3201 and
per
ipher
al ones
.
No video output (6)
Is the CVBS signal output from Pin (24) of
P8903?
No digital broadcasting video output to the
Monitor/Record ter
minal.
<On input of the digital tuner>
NO
Is the DTV
-CVBS signal input to Pin (60) of
IC3801 (A
V
-SV)?
Chec
k the MA-Connector (P3802)(P7201)
and the connection of B/B (SC2101)(P8903).
NO
NO
NO
Chec
k IC8905 and per
ipher
al circuits
.
NO
Confir
m IC3801 and per
ipher
al circuits
.
YES
Is the digital signal including Data and CLK
input to Pins (69) thr
u (79) of IC8905?
NO
Chec
k IC8801 thr
u 8802, IC8804 thr
u 8805,
IC8601 and per
ipher
al circuits
.
YES
YES
YES
Are the MAIN-Y and SUB-Y signal output to
Pin (56) and Pin (44) of IC3801 (A
V
-SV)
respectiv
ely?
Is the
VIDEO signal output to DISPLA
Y
-
OUTPUT1 (SC3102)?
See the ter
m of "No video output to the
Monitor".
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