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No colour appears
(N358)

Is 3.5795 MHz 
input into the 
pin 10 of IC801?

Check X801 and 
its peripheral 
parts.

No colour appears
(N443,PAL)

YES

Is the C/Y signals at pins 13 and 15 of IC801 normal ?

Is the output at pins 10 and 11 of IC2802 normal ?

NO

Check X802 and 
its peripheral 
parts.

NO

Is 4.4336 MHz 
input into the
pin 8 of IC801?

YES

YES

Check 
Peripheral 
parts of IC853.

NO

Is the composite 
signal which is 
input into the pins 
13 and 15 of 
IC801 normal?

Check Peripheral 
parts of IC853.

NO

YES

Is 4 MHz input 
into the pin 8 of 
IC2802?

Check X2850 
and its peripheral 
parts.

NO

YES

Check Peripheral 
parts of IC2802.

NO

Is the output at pins 29 and 30 of IC2801 normal ?

Is the output at pins 51 and 52 of IC801 normal ?

Check Peripheral parts of IC801.

YES

Check Peripheral 
parts of IC2801.

YES

YES

NO

Check Peripheral 
parts of IC406.

NO

No colour appears
(PAL-M)

Check X803 and 
its peripheral 
parts.

NO

Is 3.5756 MHz 
input into the 
pin 9 of IC801?

YES

No colour appears
(SECAM)

Check X802 and 
its peripheral 
parts.

NO

Is 4.4336 MHz 
input into the 
pin 8 of IC801?

YES

A

B

C

D

E

F

G

H

1

2

3

4

5

6

T752

T751

Inverter transformer

IC1201

Controller

SC1201

P402

P302

F703  1.25A  250V

F702  2A  250V

F701

1.25A  250V

P303

P752

IC305   Power AMP.

P403

X802

X803

X801

BLACK

BLUE

RED

IC2001

Micon

P801

SC1202

TP1106

TP1112

T701

DC/DC Transformer

IC2802

X2850

IC853

Digital comb filter

IC2801
1H Dilay system

SECAM decoder

IC801   Chroma decoder

TP805

TP804

P2002

P2001

P751

TP1111

IC1001

AD converter

IC312

Audio control

4

 TP821 G output

5

 TP1107 VCOM

6

 TP1108 VO

1. When the exclusive-use AC adapter is used, the color bar signal of color bar generator for service is input

to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 k

Ω

/V tester.

2. When the exclusive-use AC adapter is used, the color density, lightness and color hue are set to the center

position, and the signal of colour bar generator for service is observed to get waveform.
The waveform test point is indicated with the mark (     ) in the wiring diagram.

3. Indication of resistors and capacitors

[Resistor]

Unit: Nonindication ··· 

Ω

, K ··· k

Ω

,

M ··· M

Ω

Error: Nonindication ··· 

±

10%

J ··· 

±

5%

F ··· 

±

1%

D ··· 

±

0.5%

[Capacitor]

Unit: Nonindication or 

µ

 ··· 

µ

F,

P or p ··· pF

1

 TP804 CSYNC

2

 TP820 B output

3

 TP819 R output

PARTS MARKED WITH " 

 å

" 

 (              ) 

ARE

IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET.
BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE SAFE-
TY AND PERFORMANCE OF THE SET.

This circuit diagram is original one, therefore there
may be a slight difference from yours.

Resistor

Capacitor

Nonindication

Carbon-film resistor

Nonindication

Ceramic capacitor

C

Solid resistor

ML

Mylar capacitor

S

Metal-oxide-film resistor

PF

Polypropylene

N

Metal-film resistor

film capacitor

W

Cement resistor

TA

Tantalum capacitor

T

Special resistor

ST

Styrol capacitor

[Item]

4

 TP821 G output

5

 TP1107 VCOM

6

 TP1108 VO

1. When the exclusive-use AC adapter is used, the color bar signal of color bar generator for service is input

to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 k

Ω

/V tester.

2. When the exclusive-use AC adapter is used, the color density, lightness and color hue are set to the center

position, and the signal of colour bar generator for service is observed to get waveform.
The waveform test point is indicated with the mark (     ) in the wiring diagram.

3. Indication of resistors and capacitors

[Resistor]

Unit: Nonindication ··· 

Ω

, K ··· k

Ω

,

M ··· M

Ω

Error: Nonindication ··· 

±

10%

J ··· 

±

5%

F ··· 

±

1%

D ··· 

±

0.5%

[Capacitor]

Unit: Nonindication or 

µ

 ··· 

µ

F,

P or p ··· pF

1

 TP804 CSYNC

2

 TP820 B output

3

 TP819 R output

PARTS MARKED WITH " 

 å

" 

 (              ) 

ARE

IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET.
BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE SAFE-
TY AND PERFORMANCE OF THE SET.

This circuit diagram is original one, therefore there
may be a slight difference from yours.

Resistor

Capacitor

Nonindication

Carbon-film resistor

Nonindication

Ceramic capacitor

C

Solid resistor

ML

Mylar capacitor

S

Metal-oxide-film resistor

PF

Polypropylene

N

Metal-film resistor

film capacitor

W

Cement resistor

TA

Tantalum capacitor

T

Special resistor

ST

Styrol capacitor

[Item]