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CINCH I/O TRAS.
* For ITV Only 3112
BZX79-C5V6

Ext2C A6-55 A12-55 Ext2C A12-55 A12-56 Ext2Video|Y VideoOut (ITV MonitorOut)
1 2 3 4

0216

6110

S_VHS
8 C 3 7 2 1 0233-A 11 10 0233-B LEFT 18 1102 9 0223-F 21
Y

6

5

4 20 1101

1100

3110

75R

100R

9145
BZX79-C5V6

Ext2Video|Y 6111 3111 75R A6-54 A12-54

A12-54 Ext2AudioR A12-42 Ext2AudioL|Mono A12-41 A7-12 A5-41 A12-41 A12-44 AudioOutL|Mono A12-43 AudioOutR
1 2 3 4

0227

ScartPin8|SVHS 3113 1K 330p 2110 3128 47K Ext2AudioL|Mono

0214
1 2 3

REAR 2

0223-E

19

RIGHT 15 1103 2111 330p 16 0223-I 17

3114 1K 3115 47K

Ext2AudioR A5-42 A12-42

4160

9170

*4120 Use when front I/O is absent
BZX79-C6V8

Front|Ext1Video A12-75

6116

3129

0223-D

14

1104

4120

75R

13

Ext1Video A6-57 A12-57

LEFT 11 2112 1105 330p REAR 1 12 0223-C RIGHT 8 2113 1106 330p 9 0223-H 10

3117 1K 3118 47K 4121

Ext1AudioL|Mono ExtAudioMono (w/o front Cinch) A11-68 A12-68 A5-38 A12-38 Front|Ext1AudioMono A12-72 Ext1AudioL|Mono A11-72 A12-72 A12-38 Front|Ext1Video VideoOut 4146 3146 330K 7118 BC847B 3140 220K 3141 1K 4147 2137 AudioOutL|Mono A5-43 A12-43 A6-56 A12-56 A5-56 A12-75 Ext1Video A12-57 0229
1 2 3 1 2 3 4

0260 To 0252 of or 0249 of

3127 1K 3119 47K 4122
+5VA

Front|Ext1AudioMono A12-68 ExtAudioMono (/w front Cinch) 3145

3120
BZX79-C6V8

680R 2136 1u

To 0253 of or 0230 of

6 7 0223-B LEFT 1107 6121 VIDEO OUT

75R

3121
BZX79-C6V8

3147 220K 3122 330p 2135 2114 1u 270R

4 1108 6122 5 0223-A

150R 6123

470n VlotAux8V AV_Mute

8V4 7116 BC847B

BZX79-C6V8

MONITOR OUT RIGHT 1109 6124 1 2 0223-G 3
BZX79-C6V8

A7-13 A12-13

3124 220K 3125 2115 330p 150R 6125

AudioOutR A5-44 A12-44

BZX79-C6V8

1

2

3

4

5

6

7

8

9

10

11

12

PAINEL CRT
160V 160V

220R

3336

BAV21

160V
129V

190V

7332 BF422
140V

3334

6331

BAV21

6341

33K

0165
GND

129V 2V4

7333 BF423
1V2

3337

1V9

1K5

7331 BF422

1300 1 3

2331

220p

160V

470R

3331

3332

1K

3333

220R

3326

V16

4 5

Blue

33R

Blue
Green

0245
BLKCURINFO
6

V14
129V

6 7 8 9 Red

V13
5

OLDGND 33K V12
129V 2V4

7322 BF422
140V

BAV21

160V

190V

3317 1K5 3327 1K5

6321

Green

TO 0243
4

BLUE GREEN
3 2

OF

3324

V11
RED

7323 BF423
1V2

7321 BF422
1V9

Red
V15

1

2323

220p

OLDGND 330R 3321 3322

160V

0254 1 220R
G

Ground Heater Heater VG1 VG2
CRT GND VG1 Green VG2 Red Heater Heater Blue 9 Pin Pin 1 Pin 6 Pin 9 Pin 8 Pin 7 Pin 5 Pin 4 Pin 3 12 Pin Pin 1 & 12 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11

1K

3323

3316

4 5 6

33R

OLDGND

129V

3341

1K5 3348

3314

1K5

7312 BF422
140V

6311

160V

BAV21

190V

7 8 9 10

33K

129V 2V4

7313 BF423
1V2

11 12 NEWGND 100R 3350 100R 3349 NEWGND

7311 BF422
1V9

2313 470R 3311 3312 1K

220p

NEWGND 3313 33R 2341 9300 3347 1K 6342 680p

VG2

FOCUS

EHT

OLDGND 1N4148

OLDGND BZX284-C8V2

V11 R
6343

V13 B

V15
FROM MAIN CHASSIS LOT OF

160V

0244
3

OLDGND 5341 22u 2342 2343 47n 15n FILEMENT

TO 0220 OF
2 1

1V / div DC 10µs / div V12 G

1V / div DC 10µs / div V14

50V / div DC 10µs / div V16

5342 22u NEWGND OLDGND

1V / div DC 10µs / div

50V / div DC 20µs / div

50V / div DC 10µs / div

DECODIF. BTSC + SELEÇÃO DE FONTE + SMART SOUND (ESTEREO)
+9V

SMART SOUND (STEREO)

LLp|Mtrap C1-23 Ext1|2 C1-9

AUDIO DECODING
2865 7871 BC635 VlotAux13V 2875 2866 220n 1861 100R 3872 CSB 514K5 2864 220n 2u2 2u2 2867 2868 2869 4u7 3871 BZX79-C10 220R 6861
RES

10K

AUDIO SOURCE SELECT

270R

3981

3971

4907

3973 470R 2972 33n

AudioL|Mono C2-79

+9V +9V

7951 BC847B

2u2

A14 3974 6K8 4908 MainAudioL|Mono C2-49 3976 2974 1K8 82n

2971 470n

3864

3K3

3980

2884

100n

3972

3975

10K

16
VDD

9
MSB

10 3977
LSB

5K6 1K8

4861

3978

2973

7861 TDA9851 5
CP1 CP2

7862
HEF4052BT
3873 3K9 2880 1u 2882 1 5 2 4
LL

7952 BC847B

100n

2975 7955 BC847B 3979

LOGIC

1K

12K

6
CPH

3
CER

4
CMO

8
CSS

9
CAV

16 A8
OUTL 12

A7 2861 2862
RES

SIF A5-46 C1-46

7 COMP 21 FDI 3861 15K 20 FDO 11 3862 1K2

2u2

STEREO DECODER

DEMATRIX + MODE SEL

AVL

OUTR 13

A10
SDA 24
RES

LH

H

A12 3 +9V

3865 2876 2878
RES

HL

L

DETECTOR

+ VCA
BPU CW TW

SUPPLY
AGND VCAP VREF VCC

FILTER

+ RF
RFR

I2 C
DGND

SCL 1

100R

1u 3874 3K9

HH

TrebleSw BassSw 3923 270R AudioR C2-80 C1-11 C1-5

NC

A11 23 2877
RES

3931

2879

RES

100R

LL

10K

12 14 15 11

3921

4902

19 18 17 2

15 22 14

10

3866

2881 1u 2883 1u 3869 3868 3K3 3K3

470R 2922 33n

100R

3863

LH

H

1u 2872

2873

100u 2874

2870

2871

100u

100K

3867

A13 13 7921 BC847B 2921 470n 3930

4n7

10u

HL

L

A15 3924 6K8 9950 MainAudioR C2-77 3926 2924 1K8 82n

HH

2863

22n

Front|Ext1AudioL

Front|Ext1AudioR

10K

8 C1-42

7 4862

6

C1-25 SDA C1-24

SCL

C1-41

5K6

1K

VSS

VEE

3922

3925

+9V

3927 1K8 3928 2923 100n 7922 BC847B 2925 7923 BC847B BassSw TrebleSw C1-5 C1-11 3929 12K 10n 220R

0239 1 2 3 4 5 6 7 To 0239 of 8 9 10 11 12 13 14 15 16 17 AudioSupplyGnd AudioSupply10V|14V LLp|Mtrap TrebleSw BassSw Volume Buzzer Ext1|2 A7-23 C1-23 A7-11 C1-11 A7-5 C1-5 A7-3 C2-3 A7-2 C2-2 A7-9 C1-9 To 0240 of Front|Ext1AudioR A5-48 Front|Ext1AudioL A5-47 SIF C1-46

0240 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 3899
RES

SDA SCL C1-24 A7-24 A7-25 C1-25

VlotAux13V

9955 4901

Front|Ext1AudioL Front|Ext1AudioR

A5-47 A5-48

SIFGnd

AudioOutGnd

Ext1AudioGnd

MainAudioGnd

VlotAuxGnd

VlotAux8V VlotAux5V

220R

A9

10n