Sharp 29RX5 Service Manual page 39

29RX5 29RX5
29RX8 29RX8
DESCRIPTION OF SCH MATIC DIAGRAM
CAUTION: This circuit diagram is original one, therefore there may be a slight difference from yours.
I
WAVEFORMS
~J1l. ff~ I!l
~-: I
-t
t -
: . c'
~.-
_ _ ..
_---:-~~_
I·
@
1.7 Vp-p (V)
~iOdJ_' . _i9~b
~~_~.......;..;.._
I'
i
--l..-.-.
j!.
_L_
0)
5 Vp-pM
i ; :
:V
I
; j
CD
GOm Vp-p (H)
CD
2.0 Vp-p (H)
®
52 Vp-p (V)
CD
1.1 Vp-p (H)
WAVEFORM MEASUREMENT CONDITIONS:
1. The colour bar signal applied to the TP202 is 2.0 Vp-p.
2. The tuner AGC voltage is approximately 411.
VOLTAGE MEASUREMENT CONDITIONS:
1. The voltage without parenthesis represents the value measured
with PAL colour signal.
2. The voltage in parenthesis represents the value measured with no
signal.
3. All the voltages were measured by using
a
high impedance volt-
meter.
NOTES:
1. The unit of resistance "ohm" is omitted.
(K
=
1000 ohms, M
=
Meg ohm).
2. All resistors are 1/8 watt, unless otherwise noted.
3. All capacitors are f.lF, unless therwise noted. (P
=
f.lflF).
4. The diodes, whose parts code is not described, are the ISSI19.
SERVICE PRECA UTlON:
THE AREA ENCLOSED BY THIS LINE ( - - - ) IS DIRECTLY
CONNECTED WITH AC MAINS VOLTAGE.
WHEN SERVICING THE AREA, CONNECTAN ISOLATING TRANS-
FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE
HAZARD OF ELECTRIC SHOCK.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH
'Lt-" ( " .:
> )
ARE IMPORTANT FOR
MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE
THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
SAFETY NOTES:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE
REPLACING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OP-
ERATING.
@
105 Vp-p (H)
@
2.9 Vp-p
@O.15
Vp-p (H)
®
100 Vp-p (H)
@520mVp-p
@
0.9 Vp-p (H)
@
3.1 Vp-p
@680mVp-p
ttr1"::
:J':. : \~:.:
n
h '
J',~'::
. , . . . I , }
I· \ ..
1 .......
~~-+I--Jol,~-J+l
... 1
. .I ' . . . . ..
t
I .
t
1-4<r---1=ie-----I.,;....-- I
- I _ . . . . . . .
LI----;--.--~-I
. .
.
- .
.
. .
@
3 Vp-p (H)
, t •
@3.3Vp-p
@
0.1 Vp-p
(SECAM)
®
10.4 Vp-p (H)
. .
~ ~ ~~ :h~'
· t' !
J':
'1:
1
r'
: J:'
" If'
"~YF:::'::
: ..
r-
lrtIl
I'
~
r-
I
! . ' . .."" I' , _ . : " ..,
r'f---~t
"= '
r
I
t
~
- .
I . I'
I . . I " . . " . \
~-'-
' i " . . " 4 ., . ···"L
--'--~~-;..----+I-I-
. -- . . . . . " . " , .
~ffi~~~~:
1. ffi
%~" ~ ~
ffi 1«
j;
PAL 1tiJl
~ ~ ~ ffl % :tit ~
'F
~~o
2. ffi%
~ ~ ~ffi1« j;
5' G -ffl
%:tIt~
r
~~
0
3.
~~ ~~.ffi 1«~
rn
iUi ~.IlVt ~ffi tr ~~
0
tBtm~~~~:
1.
JJiJmTTP202~~~ffl%mj;2.
OVP-Po
2.1Ji!6iWBAGC
(§
~!ft~~1tiJJ) ~ffi~j;4Vo
~~tt • • ~: _ • • ~m~:
1. :E
~ ~
• JG
~
If;j,
~,~
$t
m
l±i ~
tDHil1
~
, -IJJ 1.
~ ~.Ill!X
m(
Q ) •
~
7 W-I!f3.}C.
(K
=T l!X
m,
*T ~ 7Jj
0
H
=
~~ l!X
m)
0
2.
m~~fA: ~.~IfF:tIt~If;j, mtt.~.
rp 2.
~~!Ilm~ 5If~",
00
~ ~~.Il:p}J.~ j; 1/81{.~0
~ .ij11*JG~lft1f.l
Jt
iUi ~ {)l:"ij]" 1m.ij1!1:~ ~
IIr
Ie;
3.
~~
!Um
~ 5If (P=~tliU'idJl) ~", 00 ~ ~ ~
~o .1ll:~j;
IJ
F(~~~)
0
4.
~~!Um~ 5If~", 00
rp.::m
W~ j;
188119
0
~~1!l!ffltt.~~:
~~
"&" ( ~JG~j;~1*1iE*
m*~~~~1!l!ffl~m~~JG~:E~~®JG
~If;j, ~~1!l!fflm~~~~~~JG~,
W-1*1iE
*
m~ ~
ffl:Ii:
~
W-
bt
~
ffl;tr
iir
0
!t.tt• • ~:
~.~rn~~~(-----)~~~~j;~
~m~~~~ffi~~.o~~®~~~~.~
ff~.If;j, mT*m~~~~7Jjz~m~.~
ffiBffi~, W-~~~.~~IIrzfe;~o
@
105 Vp-p (H)
@
330 Vp-p
AC110V
(480 Vp-p
AC220V)
43
44