Akai-HTA1150-hts-sm维修电路原理图.pdf

SERVICE MANUAL Model: HTA1150 HOME THEATER SYSTEM www.akai.ru RadioFans.CN 收音机爱 好者资料库 CONTENTS 1 SERVICE MANUAL 1. Safety precautions.2 2. Location of users controls.3 3. Connecting to equipment.4 4. Trouble shooting guide.5 5. Internal block diagram of ics.7 6. Schematic diagram.20 RadioFans.CN 收音机爱 好者资料库 1. SAFETY PRECAUTIONS 2 No Power supply: This speaker can only use the type of power supply as specified in the instruction manual or marked on the master speaker. Power line protection: Make sure to avoid power line being trampled, pulled or squeezed by heavy objects. In particular, be sure to hold the plug when pulling the power line from the socket. Never pull on the power line. besides, keep the power line away from hot objects. 1. 2. 3. 4. 5. 6. 7. 8. Removing cabinet: In case of speaker failure or problems due to improper use, dont dismantle the unit to repair or check by yourself. Please turn off the power and use after checked by specialists to avoid causing personal accident. Appearance cleaning: Dont use volatile solutions to clean the speaker to avoid damaging the appearance. Please cut off the power: If you dont use the sound system for a long time, please remove the cable wire or disconnect the power to ensure the speaker safety and household safety. PRECAUTIONS: Cord polarity: The speaker cord must be correctly connected as per marking on the function panel. andMust have correct polarity so maximize the inherent quality of the speaker. Otherwise, normal function and output will be affected. Ventilation: This speaker has good adaptability to the environment, but pay attention to the environmental ventilation during long periods of work. Water and moisture: Keep the sound box away from rain, water spray, water splash and wet environment, such as bath, kitchen, water basin, washing basin, damp basement, swimming pool, etc. +- SERVICE MANUAL 2. LOCATION OF USERS CONTROLS 3 BACK PANEL DESCRIPTION: FRONT PANEL INSTRUCTION : SERVICE MANUAL REAR RIGHT REAR RIGHT S.W. S.R. F.R. R C.E.S.W. S.R. F.R. R C.E. DVD(5.1CH)DVD(5.1CH) S.L. F.L. S.L. F.L. FUSE T1.6A/250VFUSE T1.6A/250V L AUX L AUX POWERPOWER ONON OFFOFF FRONT RIGHT FRONT RIGHT FR. LT. FR. LT. CENTERCENTER REAR LEFT REAR LEFT POWER FUSE T1.6A/250V SPEAKER OUTPUT F.L. SPEAKER OUTPUT F.R. SPEAKER OUTPUT S.R. SPEAKER OUTPUT C.E. SPEAKER OUTPUT S.L. DVD C.E.INPUT DVD S.R./S.L.INPUT DVD F.R./F .L.INPUT DVD S.W.INPUT AUX L/R INPUT POWER SWITCH 1213 INPUT PRESET MUTE SOUND SW.VOL C.VOL S.VOL M.VOL 12 13 REMOTE CONTROL INSTRUCTION : STANDBY Working /standby indicator AUX signal input indicator 2 AUXDVD signal input indicator 3 5.1CH DVD NORMAL sound field indicator 4 NORMAL Pro.logic sound field indicator 5 PRO.LOGIC Volume increase indicator 6 UP Sound field selection INPUT SOURCE Signal input selection 9 SPEAKER CHANNELS Master volume in increase selectionVOLUME UP Master volume decrease selection VOLUME DOWN Volume decrease indicator 7 DOWN Power switch button(standby) switch on or off for waiting or on condition 8 ON STANDBY AUX 5.1CHDVD NORMAL PRO.LOGIC UP DOWN ON STANDBY INPUT SOURCE SPEAKER CHANNELS VOLUME UP VOLUME DOWN 8 9 11 10 12 1 3. CONNECTING TO EQUIPMENT 4 SYSTEM CONNECTION: SERVICE MANUAL REAR RIGHT REAR RIGHT S.W. S.R. F.R. R C.E.S.W. S.R. F.R. R C.E. DVD(5.1CH)DVD(5.1CH) S.L.S.L. F.L.F.L. FUSE T1.6A/250VFUSE T1.6A/250V L L AUXAUX POWERPOWER ONON OFFOFF FRONT RIGHT FRONT RIGHT FR. LT. FR. LT. CENTERCENTER REAR LEFT REAR LEFT Center Front left Rear leftRear right , R L CD FRSR CEN SW FLSL DVD player Front Right No sound No sound No sound in AC-3./5.1 NORMAL state sound is ok in AC -3 state, but no sound in AUX stereo check whether the vice-level I alternating voltage8V of transformer is ok or not. replace the transformer check whether the 1IC4052 power voltage5.1V is ok or not. check whether the current transfer output voltsd. is ok or not. check whether the capacitor 2CD3, IC 7805 are ok or not. judge whether the 1IC10 4558, is ok or not by inputing signal replace 1IC10 4558, check whether the power voltage5.1V of 1IC3,1IC4, 4053 are ok or not. check whether the 2CD4are ok or not. NOT NOT NOT NOT NOT OK OK OK TROUBLE SHOOTING AND RESOLUTION 1 2 4. TROUBLE SHOOTING GUIDE SERVICE MANUAL5 Check whwther 2CD11, 2CD12 are ok or not replace 2CD11, 2CD12 NOT judge whether 1C3,-IC4 are ok or not NOT OK replace IC3,IC4 check whether the capacitor 2CD3, IC 7805 are ok or not. ErrorPossible reasonObivating No sound The power plug is not exactly inserted. The connection of output and input is not well The input format is not right The volume control be settled in the minimum Rest estate Insert the plug in right place Connect the output and input cables Adjust the volume 4. TROUBLE SHOOTING GUIDE TROUBLE SHOOTING AND RESOLUTION dried machine check whether the fuse 1.6A is OK or not. replace the fuse 1.6A. check whether there is 230V alternating current of the transformer in elementary. check the plug,power buttonare all right or not. check whether there is 14V*2,11V*2 8.5V alternating voltage output in the transformer vice-level 2 or not. replace the transformer. BURNED OUT OK OK NOT NOT 4 5 6 SERVICE MANUAL 5. INTERNAL BLOCK DIAGRAM OF ICS TDA2030A SERVICE MANUAL 7 SERVICE MANUAL8 5. INTERNAL BLOCK DIAGRAM OF ICS SERVICE MANUAL9 89C52 5. INTERNAL BLOCK DIAGRAM OF ICS 89C52 SERVICE MANUAL 10 5. INTERNAL BLOCK DIAGRAM OF ICS 89C52 SERVICE MANUAL 11 5. INTERNAL BLOCK DIAGRAM OF ICS CD4053B SERVICE MANUAL 12 5. INTERNAL BLOCK DIAGRAM OF ICS CD4053B SERVICE MANUAL 13 5. INTERNAL BLOCK DIAGRAM OF ICS CD4053B SERVICE MANUAL 14 5. INTERNAL BLOCK DIAGRAM OF ICS JRC 4558 SERVICE MANUAL 15 5. INTERNAL BLOCK DIAGRAM OF ICS JRC 4558 SERVICE MANUAL 16 5. INTERNAL BLOCK DIAGRAM OF ICS Pt2558 SERVICE MANUAL 17 5. INTERNAL BLOCK DIAGRAM OF ICS Pt2558 SERVICE MANUAL 18 5. INTERNAL BLOCK DIAGRAM OF ICS 6. SCHEMATIC DIAGRAM SERVICE MANUAL 19 SERVICE MANUAL 20 6. SCHEMATIC DIAGRAM SERVICE MANUAL 21 6. SCHEMATIC DIAGRAM SERVICE MANUAL 22 6. SCHEMATIC DIAGRAM