Proview P6NS Series service manual Raster CRT G1

Page 24

NO
RASTER
No	No		No
CRT G1	Q710 (E)	IC901(4)	CHECK
-20V~			IC901
-80V ?		-1.5V~-1.8V	Surrounding
	-0.6V ?	-1.5V~-1.8V	CKT
	-0.6V ?	Yes	CKT
		Yes
No			No
HEATER	CHECK	CHECK	CHECK
VOLT	B+ VOLT
6.3 V ?	7.2 V ?	Q711(B)	IC901(24)
		< 0.7 V ?	> 2.0 V ?
No
CRT	CHECK	CHECK	CHECK
EHT	Deflection
26KV ?	Horizontal	IC601	IC901
	CKT
No
CRT G2	CHECK	CHECK
600V ?		VIDEO
600V ?	T701 FBT	CKT
No
CRT	VIDEO CKT
KR,KG,KB
VOLTAGE	FAILURE
?
CHECK
CRT TUBE
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Image 24

Contents P6NS Series Table of Contents Important Safety Instruction For Model 786NS,986NS Series OFF 30 70 KHz ----- 572NS Series100W max. -----777NS,786NS Series 772NS Series787NS Series SDA17.56 × 18.11 × 18.70 inch Timing Chart Video Sync Period Active Sync Width Back Porch Front porchControl Location FBT ﹟Test Meter Adjusting ﹡Test Point Operation AdjustPreset ﹫Pattern ValueOperation Adjusting Value Preset BackgroundWhite BalanceOperation Adjusting Value Dynamic FocusPurity StaticPage Page Block Diagram Page Page Page Page Page Bright HOR. LINEH. Trouble Shooting Hints Line Check Raster CRT G1 Deflective HOR. CKT Vesa Standard Dpms 7V Line Noosdcharactersdoes not Missingworkone Replacement Parts List Location Parts Number Parts Description ’ty 1KΩ1MΩ R2A7 Open R992,716,722,722A 986NS,787NS,786NS 7KΩ 1KΩ R-NF 82KΩ R-MNFNTC PTC30Ω R-MNF 75KΩ R-MNFR781 986NS,787NS,786NS Open 772NS Short R780 R794 82KΩ 2KV NPOPHM 1KV PHMMEM MPP1KV CRT Socket CPUHSB772S BSN254AHZ5C1 HZ13VSignal Cable HZ18VHZ30V HZ56VPFC Assembly Kit For 17/19 CRTFBT HER308GConduction View Main Board Soild Side Schematic Diagram