KV-25XBR Service Manual

1¢. 1 -- --------- --- SERVICE MANUAL US Model Chassis No. SCC-595B-A December, 1984 P2BcHAss1s Television system SPEC! Fl CATIONS Outputs TV OUT (AV jack) American TV standards Channel coverage Picture tube Antenna Inputs 'I/IICROFILM VHF: 2-13 UHF: 14-69 Cable TV: 1-125 Microblack Trinitron 25-inch picture measured diagonally 114-degree deflection 75-ohm external antenna terminal for VHF/UHF/CATV VIDEO 1, 3 INPUT (phono jacks) Video: 1 V p-p, 75 ohms unbalanced, sync negative Audio: 408mVrms (100% modula- tion, 47 kilohms) VIDEO 2 IN AV (AV jack) Video: 1 Vp-p

KV-25XBR RM-724/APM-X3U RGB MUL Tl INPUT (34-pin plug) Pin No. Signal assignment 1 +5 V power supply 2 +5 V power supply 3 Audio (R) input ground 4 Ground 5 Remote control ground 6 Composite video output ground 7 Audio (L) input ground 8*, 9*, .10* Ground 11 Ground 12*, 13* Ground 15* Ground 16 Ground 20 Audio (R) input 21 Mode select 23 Composite video output 24 Audio(L) input 25 Red input 26 Green input 27 Blue input 29* Blanking input 30* H. sync or composite sync 31 * V.sync 33 RGB/NORMAL mode select 34 Audio select 14, 17, 18, 19, Not

-~ WARNING!! AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BECAUSE OF LIVE C