Toshiba 21SZ3R, 21SZ3E, 21SZ3ES, 21SZ3T Schematic
SCHEMATIC DIAGRAM
MODEL : 21SZ3E / 21SZ3ES / 21SZ3T
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY
PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL.
CAUTION: The international hazard symbols "* " in the schematic diagram and the parts list designate components
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals.
Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
NOTE:
1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%
tolerance carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt 1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt
K = ±10% G = ±2% F = ±1%
2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in
?F, and the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
Electolytic capacitor Mylar capacitor
3. The parts indicated with " * " have special characteristics, and should be replaced with identical parts only.
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all
controls at normal, line voltage 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary ±20% except H.V.
~
~
–+
TUNER
H001
QV01
QA01
QA02
Q801
Q883
Q404
Q301
Q501
Q901,Q903,Q905
Q610
Q840
AV IN
(FRONT)
(1)
AV IN
(REAR)
(2)
MEMORY
QT01
TEXT
REGULATOR
RESET
µ-COM
I
2
C BUS
R
G
B
HYBRID
CONVERTER TRANS.
+B VOLTAGE
C
Y
CHROMA
VIDEO
DEF.
VIDEO OUT
V. OUT
H. OUT
ERROR
AMP.
F.B.T.
H.V.
D.Y.
V
H
CRT
AUDIO OUT
AV SW
*
*
*
*
* BUS CONTROL BLOCK
V
L
R
R
MONITOR
OUTPUT
(REAR)
V
L
R
V
L
CIRCUIT BLOCK DIAGRAM
L
R
HEADPHONE
JACK
– 32 –
SPECIFIC INFORMATIONS
21SZ2/SZ3/SZ5
TUNER
[SHEET-1/9]
21SZ2/SZ3/SZ5
AV SW
[SHEET-2/9]
21SZ2/SZ3/SZ5
VERT.
[SHEET-3/9]
21SZ2/SZ3/SZ5
HDEF
[SHEET-4/9]
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