Proview 786PF service manual Bright HOR. LINEH. Trouble Shooting Hints

Page 20

BRIGHT HOR. LINEH. TROUBLE SHOOTING HINTS

APPEAR ON THE

SCREEN

NO POWER

T501 (7)

160 V ?

Yes

IC501 (7)

＞14 V ? Yes

IC501(6) 14Vp-p ?

Yes

D510 (-)

15.5V ?

CIRCUIT

SHORT

No

No

No

No

CHECK F501,D514 , D515,D516, D517

CHECK

IC501,R539,

D505,ZD551

CHECK

IC501,Q504

CHECK

D510,Q501,

Q508

T501(7) VOLTAGE

AC120V IN 160V

AC220V IN 294V AC230V IN 308V

20

Image 20

Contents 786PF Table of Contents Important Safety Instruction Specifications SCL OFFSDA Control Location Adjustment Control Location FBT GND MAXABL Static Page Page Block Diagram Page Page Page Page Page Bright HOR. LINEH. Trouble Shooting Hints Raster Deflective HOR. CKT Vesa Standard Dpms LED No Rotation Missing ONE Color CRT KG Work Replacement Parts List 1KΩ 1MΩPage 1KΩ R-NF 82KΩ R-MNF 2WNTC PTC75KΩ R-MNF 2K,VR2KV NPOPHM 1KV PHMMEM MPP1KV CRT SocketHMPSA44 CPUHSB772S HZ5C1 HZ13VHZ18V HZ30VPower Cord Signal CableCRT FBTMain Board Soild Side Schematic Diagram Memo Page Page Page Page