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X101 AC LINE 180V..270V 2 C101 220n 1 F101 T3.15AH DEGAUSSING COIL L102 2x33mH C102 100n

R101

D101 B250C1500 C124 1n

CAUTION:
C126 1n

L301 L201 D201 L202 22u BYW29 C201 1000/25 R301 U7 +19V 1,7A 0R22 47uH +15V X-8 R310 100 C301 470/25 R324 47k R325 1k R326 820 R302 2k2 D301 1N4148 X-5 Q301 BC547B Q307 BUZ73 X-6 X-11 X-7 R303 100 6 U8 -19V 1,7A U33 +33V 3mA HA2 10n C303 150n 3 4 R304 0R47 R322 2R2 C323 100n/50 X-9 Use x100 Probe

2R7 X104

Before servicing the primary side, discharge C104 using a resistor of approx. 100 Ohm!

Horizontal Deflection Unit T301

HDU
Q302 2SC5129 C305 2n2 1600V C324 47u 250V D302

+145V C317 47/250 T302 DTV101-DST 9 0 0 0 8 13 1.5 mH 12 6 7 5 2 3 1 4 3 R311 6k8 R313 1k5 X-14 3 SI301 T2A C314 100n D311 1N4148 R323 +12V 6k8/5k9 BCL X301 X-13 2 4 1 U-HV 27,5kV/30,OkV ->ESR U-FOC ->BRM U-G2 10 ->BRM

AP 1n C125 C127 1n C104 D202 330u L203 BYW29 L204 22u C202 1000/25

AC LINE

D314 UF4006 1

3 Q103 BT137B 2 1 C103 68n R102 PTC R121 47 D105 B250 C1500 1 2 3 R122 22k

R119 220 R120 220 C114 u47 C115 u47 L205 C116 u47 C203 10u

AQ-GND U-HZ 6.3VRMS GND U2/+12V

C302

D203 ZTK33B

R201 15k

UF4006 D313

X102

D204 BYT56K

U3 +145V 700mA C204 47/250

DTV32F-1500A L302 150uH

C306 11n 1600V

C205 T101 C117 100/25 D106 ZPD18 8 9 18 20 L104

1n X-12 IC201 7808 UIN G N D UOUT U9/+8V 250mA C207 1/10 R319 22k IC202 7812 UIN EWO R317 47k

R318 1M Q305 BC847C +5V

D310 ZPD51 Q303 2SD2012 X-10 L306 Q308 R321 100k R331 22 C307 4u7 C308 22n 630V

D308 R306 0R22 R307 0R22 R308 0R22 1N4148 R312 1k R309 0R22 5V

R314 2k2 HFLY R333 15k HPROT

X-17

->BRM

X103

4

Q102 6 C118 56/25 ZER 8 1 R107 6k2 IC101 TDA 4605-2 400mV nom. R109 220R 1% BC557B

R103 1k UF4006 D102

Pot.for adjustment of secondary voltage U3/+145V. 14

AP C210 100n

C206 100n

BC847C R320 2k2 R327 33k C315 100n R330 4k7

R332 470

D303 BYR29F600 D312 UF4006 R328 10k

D304 UF4006

D305 UF4006

Q306 BC557B

+V

C310 1000/16

C311 1000/16

D306 UF4006

D307 UF4006

X-16

6 145V 5

X-4P

C108 10/25 R105 10k

+200V 145V

22 R104 10R R108 47R C110 4n7 Use x100 Probe X-2P 1 L207 6 L206 13 11 15 BYW29 D205

C208 100n

G N D

UOUT

U2c/+12V 400mA C209 1/16 7 8 15 X201

+5V

PS
Power Supply

R316 47k C320 330n C309 390n D315

C312 33/100

C313 4u7/250

IN-

R106 1k

D103 LS4148 C109 1/25

DYN.FOC.

C211 1000/25

+15V 0,4A R207 C218

16 3 1 10 L20810n 62uH 4 5 R329 1k 1 T303 optional

R315 1k LIN-COIL X301 HOT WIRE 2

UF4006 L305 7 L304

X-3P SST PIS USD 7 2 3 R110 4k7 C107 6n8 R115 47R GROUND 4 X-1P R111 470k R112 470k D104 Q101 BUZ91A R116 33k L103 C112 33n C106 220n R123 100k R113 100k R114 100k

3

17 21 C212 R202 10k 2200/25

IC203 MC34167T 4 5 1 VIN CMP/STB FB VOUT GND 2 3 L211 L209 U1/+5Vd 1,4A

LIN-COIL C322 820p 5 9 J81 R305 1k

6 11 12 9 10 13 C214 2200/10 14 19 CSTSW 2 20 BCL HPROT HFLY EWO HA2 VBL X303 13 9 11 19 10 14 1 3 5 6

1 H-COIL

D206 STPS745F R206

different Lin-Coil types for 4:3 and 16:9-tubes!

OPS

5

->ESR
DEFLECTION UNIT 4 +10V D401 1N4007 X-20 C401 100n IC401 TDA8177F X-18 R401 20k/1% VD+ VDR403 20k/1% X-19 C405 10n +5Vd C406 10n R406 V-FEEDBACK 3k3 16 17 18 15 4 20 LS602 8 Ohm R-INTERNAL X-22 R404 10k 1% R402 10k 1% 4 C403 100n -10V C404 470n R407 1R5 3 7 1 5 R408 330R R409 1R2 R410 1R8 X-24 2 6 X-21 V-COIL

UF4006 C111 220p

U1EN R117 10M Q201 BC847C R203 1k C213

5.05V 6k8/1% R204 100n 100k R205 150k/1%

CAUTION:

The primary and secondary reference-potentials (GROUNDS) are NOT identical! The waveforms ...

C113 3n9 4kV F201 T2A

3

L210

D207

+9Vnr

IC204 LF52CV UIN G N D UOUT U1c/+5V 500mA C217 22/10

17 18

X-1P

X-4P

UF4006

C215 1000/16

C216 100n

and all primary-side voltages are measured with respect to the primary reference PGND!

Mains connected

Primary

Secondary
Mains isolated

X502 IFTER1 AERIAL 10 8 1 3 4 AGC AGND IFGND AGND R506 2 5 6 C507 IFGND C508 100n AGND 22/16 AGND AGND 7 9 7 8 X-25 L503 +5V 470u D501 1N4007 AGND +12V +33V L501 47uH C504 100n +5V C503 100/10 AFC L504 470u L505 470u 9 10 1 2 5 6 3 C506 C505 10/50 AGND 100n AGND 4 RR503 SDA1 100R R504 SCL1 X501 STD-sw V-TER L/L'-sw AFC n.c. AAM AIF OFW-sw 19 15 1 2 10 17 18 7 16 20 R602 13 5 11 9 8 6 3 4 12 14 /STPA MUTE-PA R603 47k R604 15k R605 18k Q601 BC847C AP AP C603 1n AF AF APR 1k AP C601 1n AF AF AF C604 APL 1k R609 R601 C602 6 3 2u2/25 7 IC601 TDA7264 C613 AP R607 4R7 4 R606 15k C605 1/25 C606 100n 2 +19V C610 100n C607 2200/25 AP C611 100n AP AP C614 3 R608 4R7 3 C617 X602 4 SPEAKER L-EXTERNAL >= 8 Ohm PUSH TERMINALS SPEAKER R-EXTERNAL >= 8 Ohm 5 AP C608 100n C609 2200/25 AP AP C612 C616 X601 S601 INTERNAL SPEAKERS ON/OFF 2 HA2 -19V

n.c. n.c. n.c. n.c. n.c.

2 4 7 8 12

TTU
Terrestrial Tuner Unit C510

IFTER2 R505 C509 100n 1k

R405 10k VPROT

1

LS601 8 Ohm L-INTERNAL

VDU
Vertical Deflection Unit

AP 8

1

2u2/25 R610

PLEASE NOTE:
This service-diagram is intended for the exclusive use by authorized qualified persons. SCHNEIDER won't take any liability for interferences by unauthorized persons and possible consequences thereoff! Always use an isolating-transformer and observe all common handling and safety-precautions (including ESD-protection) when servicing the set! " " Components labeled with the symbol conform with VDEor IEC-guidelines and are essential for ELECTRICALLY SAFE OPERATION of the set while components are assigned with " " are non-standard parts. Please have a look to our Part-List. APU-Mode Stand-By Copy Stand-By Normal Operation Mute (e.g.channel switching) /STPA L (TTL) L (TTL) H (TTL) H (TTL) MUTE-PA X X L (TTL) H (Emitterlevel T601)

1 C615 AP 2

AGND

AGND

X503 AP

APU
Audio Power Amplifier Unit

BASE CHASSIS CIRCUIT DIAGRAM

C1502 100n

+VL +VH

C1503 100n 250V

U-G2

U-HV 30kV

ST1501

C1501 22p R1502 68k SFR25 3 R1501 1k2 +Vref 1 5 R1503 1k5 C1534 100n 4 IC1501 TDA6101Q C1507 100n 250V 2 6 9 7 8 R1504 0 D1507 1N4148 C1504 470p

R
R1505 1k5

black GCH
TV 9.1
1 G5B R1516 2k2 G5A 7 10 G2 HEAT HEAT 9 8 6 11 R G B 8 6 11 5 G1 AQUADAG 0 1 0

R

1

CAUTION:

RGBGND

2

G2

The set MUST NOT be operated with the Aquadag (outer black conductive coating of picture tube) unconnected!

C1506 100n

+VL +VH

C1505 22p R1507 68k SFR25 3 R1506 1k2 +Vref 1 R1508 1k5 2 6 9 7 8 5 4 R1509 0 C1508 470p

G
R1510 1k5

C1514 3n3 1500V MKS4

9

7

1

2

0

G

3

5

ESR
ST1504

GCH X704

RGBGND

4

D1508 1N4148

IC1502 TDA6101Q C1511 100n 250V

12 ST1503 TUBE-SOCKET/SPARK-GAPS AQUADAG

C1510 100n

+VL +VH

C1509 22p R1512 68k SFR25 3 R1511 1k2 RGBGND 6 R1513 1k5 C1535 100n CI 7 R1529 CUTOFF 1k +Vref 1 2 6 9 7 8 5 4 R1514 0 D1509 1N4148 IC1503 TDA6101Q C1512 470p

B
R1515 1k5 R1545 3R3 C1513 33p

BEAMSPOT SUPPRESSION
R1517 2k2 +VH R1518 D1502 1N4007 6M8 R1522 10k C1515 4u7 250V +VL C1517 220n T1501 BF422S R1520 150k

B

5

C1536 100n 250V

R1524 100k

C1516 100u 4 5 3

X-13

D1501 1N4148

AQ-GND U-HZ GND +12V +200V 148V

R1527 +VL +12V C1521 4R7 1000u R1525 3k9 1% C1520 100n R1528 56R SKS2 +VH R1526 1k 1% +200V C1522 100n 250V C1523 10u 250V 148V

6 1 2

->GCH
X301

+Vref +2.4V

C1519 C1518 220n 100u

ST1505

CRT CIRCUIT DIAGRAM

D1801 1 2
1N4148

1 R1801 820 2
3 4

X1801

a1 a2 a3 a4

2 Q1801 1
3

D1802 1 2
2V7

R1802 2k2

BC 857C

Q18033

1 L1802 0u68 BC 847C 2 MGND

2 Q1802 1 BC 857C 3 MGND MGND

6 5 4

IC1803 1

R1808 4k7

2 3 CQY80NG

VCC 1 IC1801 11 PB1 PA1 15 ST6203 4 NMI PA2 14 Controller 10 PB3 PA3 13
6 \-RESET\PB5 TEST 5

12 PB0

R1806 4k7

MGND MGND

MGND 2 VCC
3 OUT

MGND

MGND

MGND

9

8 7 S1801 VOLUME DOWN

PB6

GND 16
1 IC1804 6 5

PB7 OSCIN OSCOUT 2 Z1801 3

R1809 2M2

GND 1 IC1802 TFMS1360

2 3 CQY80NG

4

VOLUME UPS1802
8Mhz MGND

PROGRAM UP

S1803

HEADPHONES
X1803 5 4 3 2 6 7 1

S1804 PROGRAM DOWN

MGND

MGND MGND

MGND MGND

1 2 3 4 5 6 7 8 9 10 11 12

X1802

MGND

KEINE NETZTRENNUNG
X1804 W 2 1

FRONT AV

R

4 3 6 5

Y

FRONT CONTROL PANEL CIRCUIT DIAGRAM

IF B/G CIRCUIT DIAGRAM

IF EURO CIRCUIT DIAGRAM

IF MULTI CIRCUIT DIAGRAM

ADC / DAC

RGB Matrix

Video Matrix

System Controller

Options (A)

Options (B)

Emulator Sockets