Sony TRINITRON KV-28FQ86B Service Manual page 28
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Also See for TRINITRON KV-28FQ86B:
- Service manual (78 pages) ,
- Operating instructions manual (32 pages) ,
- Service manual (24 pages)
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5-1. BLOCK DIAGRAMS (4)
TO H1 BOARD
CN2912
TO D BOARD
CN8104
TO D BOARD
CN8805
TO D BOARD
CN8203
TOMS
BOARD
cNt
TO F1 BOARD
CNoOg81
TO D2 BOARD
CN6801
TO G BOARD
CN6008
1C2200
1
AUDIO AMP.
J2200
REAR-R
SOUND PROCESSOR
(3)
()
©
REAR-L
SPEAKERS
@)
©)
®
©)
@e)
AUDIO AMP WOOFER
CN2400
G)
WYOOFER SP
TO WOOFER
TUNER,
Eis]
AGC DEFEAT
©
©
:
LC]
6
FROM B BOARD
(9)
ee
=
'Qt100
CORNEGTOR
AUDIO AMP
GN2501
°
@)
db
:
ay
CoH
is
oa
_]
oft oa J to sreancns
i
©
5
°
g
na
EWAM
a
a:
ss
Cas
LDTV
6)
)
0
122300
ase | gd
pgs
a
HEADPHONE AMPLIFIER
ean)
ieee
Ro peeor_5
1+ ©
oad
|
2._|
HP-R-OUT
@)
:
7 BORE
o
@)
®
4)
®
ANARLL
|
o _ |
KEY WOOFER MUTE
neseraunio|
| Ay
Bie
3
Naren [26
|
LJ
AC MON CIRCUIT
sTBY
6230, 06201,
aes
AC
Q6204, Q6205,
-
06207
TO G BOARD
CN6012
|
Fegescer MUTE CIRCUIT
POWER OFF
2200 & 02300,
MUTE
POWER OFF J 23018 @2302
2501
1C5400
1C5102
1C5104
eae |
VERT AMP
H TRAP
AMPLIFIER
CN3004
VERT+
(1)
(8)
®
not.
[oa]
HTRAP-
AFG PULSE
ee
a
ee
ek Sa
| ea
fe ee
lg Fe
lig
PRE-AGB
Pee
Ne
ee
ee
ee
| nampa
nuneaniy oe | gi
=
Pon
| ed
75 | MP-PARA
(5202, Q5203,
ale
ar
oz
Pvt
ag
eh siee
AV LINK | Azo
H SYNC
|_ ed
[s._| oap-pav
DQP DAVIPJ-R
[+ | pap.v-come
DQPVCOMP/PJ-B |_ ca
[s. | DQP-V-MOD
DQPVMOD/PJ-G |_ 24
aonece
kev | ard
o
CONVERTER
o
|]
20200, 00201
KEY 2 Lad
CN2301
RESET AUDIO | A183
TO B BOARD
O
CN3100
( [s_|
LINE MUTE | A17|
36
O
LJ
AUDIO MUTE
CNoo02
[7] sincs
sincs
|_At4
( [2 | ceo
Led | ars
LJ
CNée900
[7 _] EPG MODE
EPG MODE | _A8
|
HOP MUTE
HOP MUTE re
DF DRIVE
DF DRIVE
HV-PROT
HV PROT
N6200
DGC RY
pecsw | Ara]
( ie _| MAIN RY.
MAIN SW. ra
Ll
OcP-ovP
OCP/OVP
AUDIO, DEFLECTION,
ase ates
ocp-uc ara
J INTERFACE, TUNER
:
Ba
REGULATORS,
B-INTERFACE
VM (use )!
-28-
5-2. CIRCUIT BOARD LOCATION
C Board
D2 Board
F1 Board
5-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note :
¢
All capacitors are in pF unless otherwise noted.
¢
pF: uyF 50WV or less are not indicated except for
electrolytic types.
¢
Indication of resistance, which does not have one for
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
¢
Chip resistors are 1/10W
¢
All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
.
WE
: nonflammable resistor.
©
EWES
:: fusible resistor.
.
aA
: internal component.
«
[-]_
: panel designation or adjustment for repair.
¢
All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
¢
All voltages are in Volts.
¢
Readings are taken with a 10Mohm digital mutimeter.
¢
Readings are taken with a color bar input signal.
¢
Voltage variations may be noted due to normal production
tolerences.
°
mmm
= B+ DUS.
°
moo m
-: 8B -bus.
: RF signal path.
°
oe
: earth - ground.
.
faa
: earth - chassis.
Reference Information
: METAL FILM
| : SOLID
: NON FLAMMABLE CARBON
' R S )
=|:
NON FLAMMABLE METAL OXIDE
: NON FLAMMABLE CEMENT
: NON FLAMMABLE WIREWOUND
[snr
Sd
com
sd
LF
CAPACITOR
[TA
|
Note : The components identified by shading
and marked A\ are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note : Les composants identifiés par une trame et
par une marque A\ sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des piéces de numéro spécifié.
specified.
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