F25 1 SERVICE MANUAL PA 011468 1.53K-001 Printed in Japan ’99.08 HAMAMATSU, JAPAN CONTENTS SPECIFICATIONS ................................................... 3 DIMENSIONS ........................................................... 3 SCHEMATIC DIAGRAM .......................................... 4 PARTS LIST .............................................................................. 5 SPEAKER SYSTEMS F25 19990805-275000 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com F25 22 IMPOR TANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under- stood by the users, and have therefore not been restated. WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor’s Service Division. WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss.) IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com F25 3 SPECIFICATIONS Model Frequency Range Power Capacity PRGM MAX Nominal Impedance Sensitivity Nominal Dispersion 60° Vertical 40° Crossover Frequency Input Connectors ×2 ×2 Mode Switch Components HF Enclosure Dimensions (W × H × D) 575 × 1225 × 550 mm Weight Accessory — 4 Ω 45 Hz to 20 kHz 700 W (EIA RS-426) 1400 W 2800 W 98 dB (W, m) 1.5 kHz NEUTRIK NL4MPR Full Range & Bi-Amp 15" cone (JAY6150) 3" Titanium diaphragm driver (JAY2120) Bass Reflex Type 63 kg NOISE Horizontal LF F25 UNIT : mm D:550 287 75° H:1225 W:575 DIMENSIONS www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com F25 4 SCHEMATIC DIAGRAM 1+ H/S (4 PLACES) LEFT CONNECTOR LEFT CONNECTOR RIGHT CONNECTOR RIGHT CONNECTOR 2+ 8" RED 187 8" YELLOW 4" RED 187 4" YELLOW 187 187 RIGHT CONNECTOR LEFT CONNECTOR 2- LEFT CONNECTOR 1- RIGHT CONNECTOR CONNECTOR NL4MP NEUTRIK 187 8" BLUE 187 8" BLACK 4" BLUE 187 4" BLACK 187 B (FULL RANGE POSITION SHOWN) ROTARY SWITCH D 4.25" BLACK C 11 4.25" BLACK (3 PLACES) H/S 10 10" YELLOW 7 8 4 10" RED 10" BLUE 10" BLACK A 5 1 2 10" RED PCB +HIN C2 C3 R2 R1 +LIN -HIN -LIN L2 R3 28" YELLOW 250 R4 28" BLUE 28" BLACK 250 187 +HF -HF -LF2 L1 1.00mH 0.8mH 20µF/200V 10µF/250V 6.8µF/250V 18Ω 10W 18Ω 10W 8.2Ω 10W 8.2Ω 10W 20µF/200V C1A +LF C1B 28" BLACK 187 187 187 -LF1 +LF2 +LF1 28" RED 28" RED www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com F25 5 : New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK RANK: Japan only F25 WARN 25 21 22 22 37 24 30 7 3 2 30 7 6 5 4 5a 14 17 17 15 31 32 33 34 17 16 27 26 23a 23c 23b 23 19 28 29 12 13 34 OVERALL ASSEMBLY F25 2 Woofer 15” Celestion 2 53 3 Pan Head Screw #10-32x1-1/2 16 01 4 Horn RCF H6040YAM 1 27 5 Driver B&C 1 56 5a Diaphragm 1 6 Pan Head Screw #10-32x1-1/2 12 01 7 Plane Washer #10SAE BL 28 01 12 Rubber Foot 4 02 13 Pan Head Screw #10-32x1 3/4 4 14 Corner Protector 2 06 15 Corner Protector 2 06 16 Corner Protector 4 03 17 Trass Head SM Screw #6x5/8 14 01 19 Trass Head SM Screw #6x5/8 6 01 21 Flat Head SM Screw #10x3/4 BLK 12 01 22 Fin Washer #10 BLK 16 01 23 Network-input Assembly (NBY0659) 1 23a Network Assembly 1 23b Rotary Switch 1 23c Neutrik Connector 2 25 Metal Grille 1 18 26 Carpet (WRAP) (CBY0458) 1 27 Carpet (TOP/BTM) (CBY0459) 2 28 Metal Handle 2 08 29 Pan Head Screw #10-32x1 3/4 12 30 Speaker Gasket 12 03 31 YAMAHA Logo 1 06 32 7/32 Push Nut 2 01 33 Fiberglass 20” wide (8020000) 34 Fiberglass 12” wide (8012000) 37 Flat Head Screw #10x2 BLK 4 01 JAY61500 EKY00340 CBY04480 JAY21200 NBE21200 EKY00340 EKY01360 CBY03890 EKY01410 AAY02180 AAY02190 AAY02320 ETAG1030 ETAG1030 EFAK1230 EWFK0030 -- NAY00370 KAY00070 LBY00110 AAY02410 -- -- AAY02200 EKY01410 CBY01480 CBY04490 EKY01370 -- -- EFAK3230 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com