Text preview for : bandit Toshiba TV21SZ2T+.pdf part of Toshiba 21SZ2E SCHEMATIC DIAGRAM
MODEL : 21SZ2E / 21SZ2ES / 21SZ2M / 21SZ2MJ / 21SZ2T
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SCHEMATIC DIAGRAM
MODEL : 21SZ2E / 21SZ2ES / 21SZ2M / 21SZ2MJ / 21SZ2T
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.
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. Electrolytic 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. SCHEMATIC DIAGRAM STRUCTURE: SIGNAL Circuit TUNER [ SHEET - 1/9 ] ...................... 1/12 AV SW [ SHEET - 2/9 ] ...................... 2/12 VERT. [ SHEET - 3/9 ] ...................... 3/12 HDEF [ SHEET - 4/9 ] ...................... 4/12 VCD_ucom [ SHEET - 5/9 ] ...................... 5/12 A-pro Audio-Amp [ SHEET - 6/9 ] ...................... 6/12 PROTECTOR [ SHEET - 7/9 ] ...................... 7/12 POWER [ SHEET - 8/9 ] ...................... 8/12 Low B Regu [ SHEET - 9/9 ] ...................... 9/12 FRONT AV ............................................................................................................ 10/12 CRT-D Circuit ........................................................................................................ 11/12 IF MONO Circuit .................................................................................................. 12/12
NOTE: 1. RESISTOR
31
SPECIFIC INFORMATIONS
CIRCUIT BLOCK DIAGRAM
Q610 R AUDIO OUT L
H001
* TUNER
QA10 QV01
(1) V AV IN L (FRONT)
*
AV SW Y QA51 C
* MEMORY
HEADPHONE JACK
(2)
V AV IN L (REAR)
*
CHROMA VIDEO DEF.
Q901,Q903,Q905 VIDEO OUT CRT
32
Q502 R G B 5V1 Q840 Q404 +B VOLTAGE 12 V CONVERTER TRANS.
MONITOR V OUTPUT L (REAR)
D.Y. V
H
Q301 V. OUT
H.V. H. OUT F.B.T.
~
+
~
Q801
HYBRID
* BUS CONTROL BLOCK
21SZ2/SZ3/SZ5 TUNER [SHEET-1/9]
21SZ2/SZ3/SZ5 TUNER [SHEET-1/9]
21SZ2/SZ3/SZ5 AV SW [SHEET-2/9]
21SZ2/SZ3/SZ5 AV SW [SHEET-2/9]
21SZ2/SZ3/SZ5 VERT. [SHEET-3/9]
21SZ2/SZ3/SZ5 VERT. [SHEET-3/9]
21SZ2/SZ3/SZ5 HDEF [SHEET-4/9]
21SZ2/SZ3/SZ5 HDEF [SHEET-4/9]
21SZ2/SZ3/SZ5 VCD_ucom [SHEET-5/9]
21SZ2/SZ3/SZ5 VCD_ucom [SHEET-5/9]
21SZ2/SZ3/SZ5 A-pro Audio-Amp [SHEET-6/9]
21SZ2/SZ3/SZ5 A-pro Audio-Amp [SHEET-6/9]
21SZ2/SZ3/SZ5 PROTECTOR [SHEET-7/9]
21SZ2/SZ3/SZ5 PROTECTOR [SHEET-7/9]
21SZ2/SZ3/SZ5 POWER [SHEET-8/9]
21SZ2/SZ3/SZ5 POWER [SHEET-8/9]
21SZ2/SZ3/SZ5 Low B Regu [SHEET-9/9]
21SZ2/SZ3/SZ5 Low B Regu [SHEET-9/9]
21SZ2 21SZ3 21SZ5 21SZ7 FRONT AV
21SZ2 21SZ3 21SZ5 21SZ7 FRONT AV
110V(p-p)
150 2.3 1.6
110V(p-p)
150 2.3
1.6
100V(p-p)
TO MAIN
150 2.3
1.6
1.6 0.9 0
TO MAIN
21SZ2/SZ3/SZ5 CRT/D
110V(p-p)
150 2.3 1.6
110V(p-p)
150 2.3
1.6
100V(p-p)
150 2.3
1.6
1.6 0.9 0
TO MAIN
TO MAIN
1.6
0
21SZ2/SZ3/SZ5 CRT/D
21SZ2/SZ3 IF MONO
21SZ2/SZ3 IF MONO