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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 

µ

F, and

the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.

  Electolytic capacito

  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 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.

SCHEMATIC  DIAGRAM

– 44 –

MODEL : 25CSZ5TR/25SZ5ST/25SZ5VX

 SCHEMATIC DIAGRAM STRUCTURE:

– 

MAIN Circuit

   

TUNER

[ SHEET– 1/9 ] ........................ 1/11

– 

AV SW

[ SHEET– 2/9 ] ........................ 2/11

– 

VERT

[ SHEET– 3/9 ] ........................ 3/11

– 

HDEF

[ SHEET– 4/9 ] ........................ 4/11

– 

VCD/MICON

[ SHEET– 5/9 ] ........................ 5/11

– 

A-PRO/AUDIO-AMP

[ SHEET– 6/9 ] ........................ 6/11

– 

PROTECTOR

[ SHEET– 7/9 ] ........................ 7/11

– 

POWER

[ SHEET– 8/9 ] ........................ 8/11

– 

LOW B REG

[ SHEET– 9/9 ] ........................ 9/11

– 

CRT DRIVE Circuit ........................................................................................................................ 10/11

– 

FRONT AV Circuit .......................................................................................................................... 11/11

Summary of Contents for 25CSZ5TR

Page 1: ...ompsistion 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 µF and the values more than 1 in pF All capacitors are ceramic 50V unless otherwise noted as the following marks Electolytic capacito Mylar capacitor 3 The parts indicated with have special characteristics and should...

Page 2: ... VOLTAGE C VIDEO VIDEO DRIVE R G B R G B V DRIVE V_DY_Y V_DY_G Q402 Q404 H DRIVE Q460 Q463 Q465 EN F B T H V D Y V H CRT AV SW I 2 C BUS CONTROL BLOCK SV V L R R MONITOR OUTPUT V L R V L AV IN FRONT 3 R V L SDA SCL V OUT H OUT POWER ON OFF HEAD PHONE Q610 V901 AUDIO AMP L R COMPONENT VIDEO INPUT P B C B P R C R Q841 Q842 RESET C VIDEO MICROPROCESSOR VIDEO CHROMA DEF COMB TEXT SPECIFIC INFORMATIONS...

Page 3: ... 1 11 4 5V 4 5V 5 0V 32 0V 25CSZ5TR 25SZ5ST 25SZ5VX MAIN TUNER SHEET 1 9 ...

Page 4: ... 9 0V 5 2V 4 0V 5 2V 0V 3 5V 3 3V 3 3V 3 3V 0V 0V 5 2V 5 2V 5 2V 5 2V 5 2V 5 2V 5 2V 5 2V 5 2V 5 2V 5 2V 4 0V 4 0V 3 8V 3 4V 0V 0V 0V 0V 0V 0V 3 4V 4 0V 4 0V 9 0V 9 0V 4 5V 9 0V 3 9V 0V 0V 2 0Vp p 25CSZ5TR 25SZ5ST 25SZ5VX MAIN AV SW SHEET 2 9 ...

Page 5: ... 3 11 27 0V 0V 25CSZ5TR 25SZ5ST 25SZ5VX MAIN VERT SHEET 3 9 ...

Page 6: ... 4 11 27 0V 0 4V 0V 23 0V 2 0V 2 0V 5V 10V 150V 0 1H 82Vp p H 0 1H 1000Vp p H 10 115 17 150Vp p H 3 27Vp p H 13 120Vp p H 29 280Vp p H 25CSZ5TR 25SZ5ST 25SZ5VX MAIN HDEF SHEET 4 9 ...

Page 7: ... 5 11 25CSZ5TR 25SZ5ST 25SZ5VX MAIN VCD MICON SHEET 5 9 ...

Page 8: ... 6 11 2 2V 0V 2 2V 9 9V 21 0V 9 7V 25CSZ5TR 25SZ5ST 25SZ5VX MAIN A PRO AUDIO AMP SHEET 6 9 ...

Page 9: ... 7 11 25CSZ5TR 25SZ5ST 25SZ5VX MAIN PROTECTOR SHEET 7 9 ...

Page 10: ... 8 11 1 5V 40mV 14V 0V 51 0V 6 7V 14 0V 1 1V 450Vp p AC 220V 25CSZ5TR 25SZ5ST 25SZ5VX MAIN POWER SHEET 8 9 ...

Page 11: ... 9 11 25CSZ5TR 25SZ5ST 25SZ5VX MAIN LOW B REG SHEET 9 9 ...

Page 12: ... 0 8V 0 8V 6 0V 0 1V 5 5V 6 5V 11 5V 2 2V 2 0V 2 2V 3 2V 8 7V 9 0V 160 0V 2 2V 3 2V 8 7V 9 0V 160V 2 2V 3 2V 8 7V 9 0V 160V 11 5V 5 5V 5 2V 0V 0 8V 0 3V 64 3V 6 0V 122 3V 122 7V 66Vp p 68Vp p 68Vp p 25CSZ5TR 25SZ5ST 25SZ5VX CRT DRIVE ...

Page 13: ... 11 11 25CSZ5TR 25SZ5ST 25SZ5VX FRONT AV ...

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