Fujitsu C551, MCM1514V, D556Q, 154V manual Power ON/OFF Switch

Page 49

DEGAUSSING C.K.T PR901

POWER

ON/OFF

SWITCH

RECTIFIED

VIN

T901

&

 

 

SMOOTHED

 

 

POWER

TRANSFORMER

 

 

 

 

 

START

 

 

RECTIFIED

C.K.T

 

 

 

&

D909,Q904

 

 

 

SMOOTHED

R922,ZD902

 

 

 

 

 

 

 

 

 

 

 

VCC

 

 

 

 

7

2

F.B

Q901

 

CONTROL

O/P

 

 

 

8

&

6

POWER

 

PWM O/P

 

 

MOSFET

 

 

 

 

IC901

3

 

 

 

 

OUTPUTS RECTIFIED & SMOOTHED

75V

L906

VARI. TRANSFORMER

 

Q909

 

IC904

 

 

12V

 

Q910

 

 

 

 

 

 

 

 

 

15V

 

 

 

 

 

 

 

 

 

OUTPUTS

+75V

 

 

 

 

 

 

-12V

6.3V

Q907

 

 

 

 

 

 

 

 

 

 

6.3V

 

Q908

 

 

 

 

 

D928

R963

 

R122

5

34

12

 

 

 

IC101

 

 

LED1

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

LINE FILTER

 

 

 

 

 

 

4

Is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R929

Q911 POWER MOSFET

OUTPUT RECTIFIED & SMOOTHED

(70V-170V VARIABLE) B+

AC INPUT 100V-240V

H-SYNC C.K.T

FROM

H.O.T

H-SYNC

CONTROL

B+ PWM CONTROL IC401 Q912,Q920

Image 49
Contents Color Monitor Page Table of Contents Specifications for 154V/C551 Color Monitor Safety Precautions Precautions and NoticesProduct Safety Notice Service NotesHigh Voltage Warning Operating Instructions Adjustment Conditions and Precautions AdjustmentMain Adjustments Adjustment MethodRelative Placement of Typical Components Circuit Description Power SupplyMicro Circuit Deflection CircuitPage Abnormal Power Supply Abnormal DDC Plug & Play Abnormal Video Level on ScreenAbnormal Display No Signal on ScreenNo Blanking FBT PIN 5 on Main PCB No Raster Disconnect with Signal Cable HOR./OSC/DEF/HV Circuit FaultAbnormal Horizontal Deflection Abnormal Horizontal SizeAbnormal Horizontal Video Center Abnormal Vertical ScanningAbnormal Horizontal Linearity Abnormal Vertical SizePoor Focus SIDE-PIN Cushion DistortionPower Supply Trouble Shooting Chart Page Specification Parts List of CabinetParts List of Chas Fuse Diode GUF30G FBT Main Board Parts List of Main PC Board104 1UF +-5% Diode IN4148 D701 93A 11F 52T Diode BAV20 J041 95A 159 52T J120 95A KSA733GC Samsung R165 61A 602 222 52T 102 52T 1K OHM +-5% 1/6W 222 2K OHM +-5% 1/4W 101 304 R709 61A 602 103 52T 52T 12.7V +-5% 1/2W TZX20B Parts List of CRT Auto INS. PC Board Parts List of CRT PC BoardD802 93A 11F 52T TR. KSC945GC 1MEG OHM +-5% 1/4W Parts List of Q911 Assy Parts List of IC802 AssyParts List of IC601 Assy Parts List of IC904 AssyParts List of AC Linet Assy Parts List of Q403/Q406/D408 AssyParts List of Q901 Assy Parts List of Cabt AssyParts List of CRT Alternation 33uF +-5% Function KEY UP/DOWN Control LED Control Power ON/OFF Switch LM2438T IC Block DiagramsIC601 TDA9302H TDA9111 IC801 LM1279N Page Page Model KEY LED Vgnd Comp SDA GND Clamp CAP Drive