Magnavox 37MD359B Manual de servicio descargar pdf (Pagina 39)

9-5 A94F0TR

Is approximately +4V voltage supplied to Pin(3) of

IC901?

Ye s

Check Q901, Q902, DVD-MAIN PWR line and their

periphery circuit, and service it if defective.

See FLOW CHART No.13 <D+5.5V is not output.>

EV+1.2V is not output.

FLOW CHART NO.19

Is approximately +5V voltage supplied to the

emitter of Q901?

Ye s

Replace IC901.

P-ON+9V is not output. (LCD+16V is outputted normally.)

FLOW CHART NO.20

Is approximately

+13V voltage supp

lied to the

collector of Q642?

Is approximately +

10V voltage supplied to the

base of Q642?

Is approximately +5V voltage supp

lied to Pin(1) of

IC631?

Ye s

Check D670 and their periphery circuit, and service

it if defective.

Check Q635, D659 and their periphery circuit, and

service it if defective.

See FLOW CHART No.5 <AL+33V is not output.>

See FLOW CHAR

T No.12 <AL+13V(M+13V) is not

output.>

AL+3.3V is not output.

FLOW CHART NO.21

Is approximately +34V voltage supplied to the

collector of Q635?

Ye s

Replace IC631.

Replace Q642.

Check C632, D632 and their periphery

circuit, and service it if defective.

Check Q207, Q208, D205, P-ON-H1 line and their

periphery circuit, and ser

vice it if defective.

Replace Q211.

Is approximately -8V voltage supplied to the

base of Q211?

Ye s

LCD-6.8V is not output.

FLOW CHART NO.22

Is approximately -9V voltage supp

lied to the

Anode of D632?

Ye s

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 205 206

Comentarios a estos manuales

Sin comentarios

Magnavox 37MD359B Manual de servicio Pagina 39

Comentarios a estos manuales

Relacionado con productos y manuales para Reproductores de dvd Magnavox 37MD359B