Toshiba 21CZ3R Service Manual page 27

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Service manual (51 pages)

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SPECIFIC INFORMATIONS

SCHEMATIC DIAGRAM

MODEL : 21CZ3R/21CZ5R

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY radiation precaution", "SAFETY PRECAUSTION"

and "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL.

CAUTION: The international hazard symbols "

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

1RF = Fuse resistor of 1 watt

K = ±10%

2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in µF, and the values

more than 1 in pF.

All capacitors are ceramic 50V, unless otherwise noted as the following marks.

Electolytic capacitor

3. The parts indicated with "

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 at 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.

L SCHEMATIC DIAGRAM STRUCTURE:

– SIGNAL Circuit .........................................................................................................................................................1/3

– POWER Circuit ........................................................................................................................................................ 2/3

– CRT DRIVE Circuit ...................................................................................................................................................3/3

" in the schematic diagram and the parts list designate components

G = ±2%

F = ±1%

" have special characteristics, and should be replaced with identical parts only.

1/2S = Carbon compsistion of 1/2 watt

10W = Cement of 10 watt

Mylar capacitor

– 28 –

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