Sanyo CE28DFN3-B Service Manual page 29

BLOCK DIAGRAM
ON/OFF
FRONT UNIT A
1AA0B10E689AA
K16F
K16E
K16FF
KA
KF
240VAC
KQ
PWB SOCKET
1AA0B10H068PB
K7P
KQ K7Q
KP K7P
K7Q
COLOUR TELEVISION
The service Precaution:
The area enclosed by this line
E E B B 8 8 - - D D
E E B B 8 8 - - D D
CHASSIS SERIES
(
with AC mains voltage. When
servicing the area, connect an
CE28DFN3-B
MODEL NUMBER
isolating transformer between
TV receiver and AC line to elim-
inate hazard of electric shock.
CE28DFN3-B-00
SERVICE REF.NO.
Part No. SKP20528
AV3
FRONT UNIT B
1AA0B10E689AB
K19H
K1103
K2
KH
MAIN UNIT
1AA0B10H068PA
K4
K9
K4A KP
K3
K4B
K4B (VERTICAL) RF IN
Product safety notice:
Product safety should be considered
when a component replacement is
made in any area of a receiver.
Components indicated by a mark /!\ in
this circuit diagram show components
) is directly connected
whose values have special significance
to product safety. It is particularly rec-
ommended that only parts specified on
the part service manual be used for
components replacement pointed out
by the mark.
C7VDS (SHEET 1-3)
H/P
SPK - L
SPK - R
PL8004
PL8003
K5 1AV4U20B64200
PL8002A
PL8002B
PL8005
A101
DIGITAL
TUNER
K2 - 6V SUPPLY - PL8004
K3 - AUDIO -
K4 - COMM - PL8002A
K9 - VIDEO - PL8002B
K5 - GND - PL8005
K16E - DEGAUSSING
K4A (HORIZONTAL)
8. This circuit diagram covers a basic or
Circuit diagram notes :
1. All resistance values are in ohms, K=1,000, M=1,000,000. representative chassis only. There
2. All resistance rated wattages are 1/6W unless otherwise noted. may be some components or partial
3. Excepting electrolytic capacitors, all capacitance values of less circuit differences between the actual
than 1 are expressed in µF and more than 1 are pF. chassis and the circuit diagram.
9.
4. All capacitance rated voltages are 50V unless otherwise noted.
5. All inductance values are in µH.
6. Voltage readings taken a digital voltmeter are from point indi-
cated chassis ground. Voltage readings taken by using a colour
bar signal are with all controls at normal position. Some volt-
ages may vary with signal strength.
7. Waveforms were taken with colour bar and controls adjusted
for normal picture. Waveforms were taken by using a wide
band oscilloscope and a low capacity probe.
DIGITAL MODULE
PL8006
CI SLOT
PL8003
Expression of capacitance and resistance in circuit diagram.
Capacitance (Example)
Diode 1S1555 may be replaced with
1000 C M 2000 D
1S2473,1S2076 or DS472 unless Characteristic
otherwise noted. Capacitance value (220pF)
Transistor 2SC536(Q,R,S), Tolerance (±20%)
Kind(Ceramic)
2SC1740(Q,R,S), 2SC945A(Q,R,P)
Rated voltage (1,000V)
or 2SC1815(G,O,Y) unless other-
wise noted.
Transistor 2SA608(E,F) may be Resistance (Example)
1/2 N J 1.2
replaced with 2SA933(Q,R),
Resistance value (1.2Ω )
2SA564(QA,RA), or 2SA1015(O,Y)
Tolerance (±5%)
unless otherwise noted.
Kind (M.carbon)
Rated wattage(1/2W)
Terminal guide
N/2
E C
N/2 + 1
1
B B
K
C E A
E C B
N
A
K
A
K
E E
C C 1 0
B B 9
6 7
5
4
3 3
C : Collector A : Anode 1 2 2
1
B : Base K : Kathode
E : Emitter
Chip Components
Diode
Transistor
K
Resistor
C
3
123 12 x 10 = 12kΩ
A
B E
J= ± 5%
K= ± 10%
M= ± 20%
T, A, U, D : Electrolytic
C, K, B : Ceramic
F : Mylar film
M, N : Polypropylene
Z : Metallized paper
D : Carbon
N : Metallized carbon
S : Oxide metallized
W : Wire wounding
C : Solid