Hitachi 46EX1B Service Manual Download Page 1 | Manualshive

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Summary of Contents for 46EX1B

Page 1: ...ve been trained to properly and safely repair complex products such as those covered by this manual Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician WARNING ...

Page 2: ...returned to the customer Repeat this test with the instrument AC switch in the off position d Leakage Current Hot Check With the instrument completely reassembled plug the AC line cord directly into a 120V AC outlet Do not use an isola tion transformer during this test Use a leakage cur rent tester or a metering system that complies with American National Standards Institute ANSI C101 0 Leakage Cu...

Page 3: ...ssary to locate the cause of excessrve voltage h X radiation Shield 1 This receiver ISprovided X ray shield plates for the protection of X radiation Do not remove X ray shreld plates A B C D E F and shield covers A B shown in Fig 1 unnecessarily when trouble shooting and or making test measurements 2 Toprevent X radiation after replacement of picture tube and lens confirm these components to be fi...

Page 4: ...sis can be safely serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source for both personnel and test equipment protection c Some TV receiver chassis have a secondary ground system in addition to the main chassis ground This secondary ground system is not isolated from the AC power line The two ground systems are electrically separated by...

Page 5: ...n indication 4 Connect the jig as shown in Fig 2 to POWER SUPPLY PW B 5 Turn the ZOkQ BVR of the jig fully clockwise viewed from the knob side 6 Turn on the set 7 Gradually turn the 20 k B VR of the jig counterclockwise and check that the picture disappears when the high voltage is less than 38kV 8 Turn off the set immediately after checking that the pic ture disappears 9 Remove the jig and voltme...

Page 6: ...olt rms 40 k ohm 0 4 volt rms 1 k ohm Front 7 watts rms per channel 8 ohm impedance Rear 3 watts rms per channel 8 ohm impedance Anode Voltage 30 0 kV Zero Beam Current Brightness 390 ft L Nominal Peak White Speakers 2 Woofers 6 inch 16 cm round Dimension Width 397 8 Height 487 16 Depth 227 16 Weight 184 Ibs Circuit Board Assemblies CPT B P C B CPT G l C B Convergence Correction f C B Signal PC B ...

Page 7: ...j 46EXlB GENERAL INFORMATION POWER button I syNc knob 0 POWER O 0 V SYNC Fig 3 Control Panel 7 ...

Page 8: ...46EXl B INPUT 1 jacks INPUT 2 jacks AUDIO TO HI FI jacks REAR SPEAKER 80 ONLY SP MATRIX SURROUND VHF UHF EXT Rear speaker termmal Fig 4 Monitor Connection Panel 8 ...

Page 9: ...CE 5 AUTO DEMO PUSH NO TO SELECT PUSH MENU TO END 1 1 PUSH NO 3 ADJUST PUSH MEI TO END PUSH NO 0 ADJUST PUSH MEN J TO END j 1 El MENU p k Use button on Remote to align colors to form white lines Remote Control RED BLUE Vertical Position t021 RED to 81 BLUE Horizontal Position 60 7 9 LBLUE J r 0 VOLUME 0 MUTE 9 ...

Page 10: ...li Ei f KEY f PljI PIN i i GV PIN PHASE GV KEY GV U KEY GV PIN GV U PIN i i i i GH PIN PHASE GH KEY GH U KEY GH PIN GH U PIN i i i III i L _ _ _ GREEN GEOMETRIC CORRECTION _ _ _ _ _ _ _ _ _ _ _ _ I i 1 I i I I i I I i RH L SIZE El I Et L SIZE I El I Layout of the Adjustment VR CONVERGENCE CORRECTION P C B i nRH L SIZE R2139 nBH L SIZE R2140 i i i i i i i i i i i i i i i i i i lO ...

Page 11: ...he state in Fig 841 will change to that in Fig 8 2 Anode connector HV cap Fig 6 2 Remove the HV cap and remove the anode connector Fig 7 HV cap 1 46EXlB CAUTIONS WHEN CONNECTING DISCONNECTING THE HV CONNECTOR Anode connector Fig 7 During Insertion 1 Insert the anode connector deep into the FBT to sec tion in Fig 7 and then push the HV cap into the FBT until it clicks 2 Make sure the connector is s...

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Page 13: ...46EXlB EXPLODED VIEW 2 3 ...

Page 14: ... 46EXlB EXPLODED VIEW 313 EXPLODED VIEW 3 3 a lk Ak 7 S w P 49 w 14 ...

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Page 17: ...SPEAKER L CRT R CRT G CRT 8 I r P LINE COMB IUHF VHF IN CONTROL F B CONVERGENCE CORRECTION WE ...

Page 18: ...ARD ASSY 23 4520771 4X18 TAPPING SCREW WiWASHER 24 3123071 CABINET ASSY HHEA MD 25 4137975 4X16 ZA R SCREW 26 3794331 PRESET DRIVER 27 4519503 3X12 TAPPING SCREW 28 4520232 4X16 DT SCREW 30 4336491 CASTER METAL 31 3447251 UNIT METAL COVER A A El01 E202 E301 E302 A E9001 2 EE N201 Q SP401 Ld SP402 W811B W811G W811R PART NO 3447252 3169681 4321071 3169691 4304282 4517997 3727972 3850473 3850474 3189...

Page 19: ...46EXl B MEMO 19 ...

Page 20: ...l Office 1400 Morse Ave Elk Grove Village Illinois 60007 Southern Regional Office 3890 Steve Reynolds Blvd Norcross Georgia 30093 Tel 404 279 5800 Tel 31 O 537 8383 Tel 201 935 8980 Tel 708 593 l 550 Tel 404 279 5660 HITACHI SALES CORPORATION OF HAWAII INC 3219 Koapaka Street Honolulu Hawaii 96819 HITACHI SALES CORPORATION DE PANAMA S A Centro Comercial Plaza Balboa Punta Paitilla PO Box 7657 Pana...

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