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Proview P6NS Series service manual R979, Q902, Q903

Models: P6NS Series

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Page 27

R979

			No

P903				CHECK
OK ?				Rotation Coil
OK ?				Rotation Coil
			No
			No

Q902 (c)				CHECK
15 V ?				15V LINE
15 V ?				15V LINE
			No
			No

R979				CHECK
7 V ?				7V LINE
7 V ?				7V LINE
			No
			No

Q902 (B)				CHECK
Q903 (B)				Q902
1.5~13V ?				Q903
			No
			No

Q904 (B)				CHECK

0~2.5V ?				IC901

CHECK

Q904

27

Image 27

Proview P6NS Series service manual R979, Q902, Q903

Contents

Service Manual P6NS SERIES6F,No.1,Pau-Sheng Road,Yung-Ho City,Taipei 234,Taiwan Tel 886-2 2231-6789 , Fax 886-2 TABLE OF CONTENTSA. IMPORTANT SAFETY INSTRUCTION For Model 572NS Series For Model 786NS,986NS SeriesB. SPECIFICATIONS 562NS,572NS Series772NS,777NS,786NS,787NS Series 30 - 70 KHz ----- 772NS,777NS Series 986NS Series15.7 inch ----- 772NS,786NS Series 16.02 inch ----- 777NS,787NS Series 310mm H × 230mm＜ 110W 446 × 460 × 475 mm ------ BZ/IZ SeriesA Period B Active C Sync Width D Back Porch E Front porch C. TIMING CHARTVideo Sync C AD. CONTROL LOCATION Font control panelc.Encoder L705 E. ADJUSTMENT CONTROL LOCATIONIC901 VR501Brightness F. ADJUSTMENT PROCEDURE﹟Test Meter ﹡Test Point ﹫Pattern Other adj5. Set the DEFO to TDA9113/9112 786NS,787NS,986NS Operation Page Page G. BLOCK DIAGRAM Page Page Page Page Page BRIGHT HOR. LINEH. TROUBLE SHOOTING HINTS T5017 VOLTAGE AC120V IN AC220V IN 294V AC230V INNo No No No 48 VP-P ? 0.7 VP-P ?Horizontal 1.5V~-1.8VSurrounding Deflection1.0 ~ Q505 C 7.0 V ? OFF MODE NO ROTATION FAILUREIC90140 41 H/V SIGNAL ? IC90120 PS 0 V ?R979 Q902Q903 80V 0-P? 39 V P-P ?0.7V P-P ? Condition OSD on I. REPLACEMENT PARTS LIST986NS/787NS/786NS/777NS/772NS/572NS/562NS Spare Parts ListREVA R2A7 R979 R2A6 R2A1R2A4 RP901 R701,702 986NS,787NS,786NS772NS 787NS,786NS,772NS,772NS,572NS,562NS C2A2C2A9 C2A34700p 1.5KV C 908,909,920,921,902A,902B,724 HMPSA44 POWER CORD986NS,787NS,786NS,772NS PFC Assembly Kit For 17”/19” MAIN BOARD Component Side J. CONDUCTION VIEWMAIN BOARD Soild Side K. SCHEMATIC DIAGRAM