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Zenith C27C35T Series Service Manual

Other manuals for C27C35T Series: Operating Manual & Warranty
Manual is about: Consumer Color TV

Summary of C27C35T Series

  • Page 1

    Service manual product type: consumer color tv chassis: xc manual series: cm152 manual part #: 923-03435 model line: c product year: 2000 general info/remotes .................................... 1 factory menu ................................................ 2 servicing/troublshooting ................

  • Page 2

    Cm152 xc - safety product safety servicing guidelines for audio-video products i important safety notice this manual was prepared for use only by properly trained audio-visual service technicians. When servicing this product, under no circumstances should the original design be modified or altered w...

  • Page 3

    Cm152 xc - safety product safety servicing guidelines for audio-video products ii shutdown circuit theory of operation the hv shutdown network feeds the shutdown or x-ray protection input, pin 29, of icx2200 video processor ic. To perform the shutdown or activate the x-ray pro- tection requires gett...

  • Page 4

    Cm152 xc - safety iii product safety servicing guidelines for audio-video products shutdown circuit test equipment required: a) k.V. Dc meter (0 to 40 kv, high z). B) external variable power supply (0v to 8 vdc). C) shutdown circuit. Apply a voltage signal of an external power supply through the shu...

  • Page 5: Table of Contents

    Table of contents cm152 xc - toc section 1 .................... Overview overview ..................................................... 1-1 introduction ............................................... 1-1 remotes ....................................................... 1-2 mbr3457t remote control ......

  • Page 6

    - toc-2 -.

  • Page 7: Overview

    Cm152 1-1 xc - overview overview section 1 overview introduction the xc chassis is a single sided printed circuit board (pcb) very similar to the ca chassis. During the manufacturing process, the microprocessor will be programmed for any added features. Additional plug in boards with jack packs will...

  • Page 8: Mbr3457T Remote Control

    Cm152 1-2 xc - remotes mbr3457t remote control remotes )/$6+%.)odvkedfn 5hwxuqvwrsuhylrxv&kdqqho 32:(5 7xuqv792qru2ii 02'( 6hohfwvwkhuhprwh vprghrirshudwlrq 087( 7xuqvvrxqg2iidqg2q zklohslfwxuhuhpdlqv 92/80(/hiw5ljkw ,qfuhdvhv79¶vvrxqgohyho (17(5 6krzv&kdqqho7lphhqwhuv fkdqqhoruuhpryhvdq\ rqvfuhhqph...

  • Page 9: Mbr3458T Remote Control

    Cm152 1-3 xc - remotes mbr3458t remote control )/$6+%.)odvkedfn 5hwxuqvwrsuhylrxv&kdqqho 32:(5 7xuqv792qru2ii 02'( 6hohfwvwkhuhprwh vprghrirshudwlrq 087( 7xuqvvrxqg2iidqg2q zklohslfwxuhuhpdlqv 92/80(/hiw5ljkw ,qfuhdvhv79¶vvrxqgohyho (17(5 6krzv&kdqqho7lphhqwhuv fkdqqhoruuhpryhvdq\ rqvfuhhqphqxv 83dq...

  • Page 10: Remote Programming

    Cm152 1-4 xc - remotes programming instructions if you’re using zenith products, the remote is already programmed for most common codes: tv = 101, vcr = 201, cable = 353, and aux = 401. For other brands, or if your remote fails to control your zenith products, you’ll have to program the remote. Make...

  • Page 11: Remote Codes

    Cm152 1-5 xc - remotes remote codes t v admiral 116, 121, 130, 133 akai 104 amark 103, 146 aoc 104 bell & howell 121 broksonic 131, 136, 182 candle 139 centurion 119 citizen 121, 139 contec 141 coronado 103 crown 103 curtis mathis 116, 119, 121 daewoo 149, 159 daytron 119 elektra 121 emerson 103, 10...

  • Page 12: Remote Codes

    Cm152 1-6 xc - remotes remote codes vcr admiral 208, 261 adventura 231 aiwa 231 akai 223, 238, 241, 292, 717, 718, 719, 720 audio 202, 206, 218, dynamics 247, 726 bell & howell 206, 247 broksonic 221, 226, 233, 250, 255, 729 candle 727 canon 214, 704 capeheart 728 citizen 209, 727 craig 212 criterio...

  • Page 13: Remote Codes

    Cm152 1-7 xc - remotes remote codes cable & satellite allegro 358, 362 allegro a/b switch 361 alphastar 516 amerkast 383 archer 325 century 325 chaparral 501, 502 cheyenne 502 citizen 325 comtronic 326 dishnet 389, 515 drake 503 garrard 325 gemini 305, 331, 338 ge 367, 510, 517 general 304, 305, 306...

  • Page 14: 905-10525 User Menus

    Cm152 1-8 xc - menus 905-10525 user menus set up menu the setup menu and all of the options for the xc chassis are described below. Auto program to start the auto program, press the left/right arrow key. If the cable tv input type is selected, the auto program routines will determine what type of ca...

  • Page 15

    Cm152 1-9 xc - menus 905-10525 user menus (continued) time set use the up/down arrow keys to adjust the clock the desired time set option. Clock mode time set am pm flshbk ez clock ez clock move back menu 12 : 00 when no time is set, the display shows: —:— — there are two ways to set the time: 1. Di...

  • Page 16

    Cm152 1-10 xc - menus 905-10525 user menus (continued) ez program add/del/surf ez clock captions caption/text source/menu language b c a d b c a d english spanish french set up set up move back menu source menu this menu has two items, main source and pip source. The selection of either, main source...

  • Page 17

    Cm152 1-11 xc - menus 905-10525 user menus (continued) brightness for adjust this feature use left/right arrows keys. The brightness value sent to video processor is (rfbrt + customer brightness) if the source is on the rf source, or (auxbrt + customer brightness) if the source is on the aux source....

  • Page 18

    Cm152 1-12 xc - menus 905-10525 user menus (continued) content block use the left/right arrow keys to select the content block menu. Dialog block to block an entire program with the dialog rating, use the up/down arrows keys to select either: unblocked, tv-pg or tv-14. Language block to block an ent...

  • Page 19

    Cm152 1-13 xc - menus 905-10525 user menus (continued) sleep timer sleep timer on time off time on/off tim. Ez timer ez timer move back menu off 10 min 20 min 30 min 1:00 hrs 1:30 hrs 2:00 hrs 3:00 hrs 4:00 hrs on time ez timer ez timer move back menu am pm flshbk ez timer ez timer move back menu 12...

  • Page 20

    Cm152 1-14 xc - menus 905-10525 user menus (continued) pip menu all menu items are adjust with the left/right arrows keys, except the size menu. Ez timer ch labels xds dislay ez demo ez help pip menu to set press special move next menu next menu b c a d contrast pip contrast adjustment has 15 (0 to ...

  • Page 21: 905-10525 User Menus

    Cm152 1-15 xc - menus 905-10525 user menus ez timer ez timer move back menu 12 : 00 sleep timer off time on/off tim. On time ez help ez help move back menu cable tv air antenna if you do not have any watchable channels ez program add/del/surf help this feature offers help for the programming of the ...

  • Page 22

    - 1-16 -.

  • Page 23: 905-10525 Factory Menu

    Cm152 2-1 xc - factory menu 905-10525 factory menu factory menu adjustments to access the factory menu, press and hold the menu key until the user menu display disappears, then press 9876, and then enter to access the factory menu. 1485-00 1.05 01 02/15/00 te = 10110000 03 h pos 9 microcontroller pa...

  • Page 24

    Cm152 2-2 xc - factory menu 905-10525 factory menu (continued) 17 red cut: b&w tracking adjustment. Range is 0 to 254. Typical value is 0. 18 green cut: b&w tracking adjustment. Range is 0- 254. Typical value is 0. 19 blue cut: b&w tracking adjustment. Range is 0-254. Typical value is 0. 20 green ga...

  • Page 25

    Cm152 2-3 xc - factory menu 905-10525 factory menu (continued) item range all 27" c32c35t(f) c32c41t(f) c32c84r 36" suffix 8 other 36" description 00 f mode 0-1 0 0 0 0 0 0 factory mode pref. 01 picture preference 0-1 0 0 0 0 0 0 used to store customer menu adjustment 02 vertical position 0-30 15 15...

  • Page 26

    - 2-4 -.

  • Page 27: Servicing

    Cm152 3-1 xc - servicing servicing general information servicing the xc chassis is the same as with other zenith single-board chassis. If the set is dead, first check the standby and switched voltages. If the switched voltages do not appear, check the power “on” circuit. If the power supply is ok an...

  • Page 28: Servicing (Continued)

    Cm152 3-2 xc - servicing servicing (continued) adjustments g2 adjustment use the following procedure when resetting g2. 1. Set brightness and contrast in video menu to mid range. 2. Set color level to minimum. 3. Connect output of an ntsc generator to the antenna input on the receiver. Select a colo...

  • Page 29: Servicing (Continued)

    Cm152 3-3 xc - servicing servicing (continued) preliminary setup 1.Allow the receiver to warm up for 15 to 20 minutes. 2.Degauss the crt. 3.Connect a crosshatch generator to the receiver and “rough in” the static (center) convergence. Follow the convergence procedure. 4.Adjust for best focus. Purity...

  • Page 30: Servicing (Continued)

    Cm152 3-4 xc - servicing servicing (continued) vertical-tilt wedge adjustment the vertical lines at 6 and 12 o’clock are converged by vertically tilting the yoke and inserting a wedge at the top of the yoke until it is firmly seated between the crt glass and the horizontal coils. Horizontal-tilt wed...

  • Page 31: Model Parts

    Cm152 4-1 xc - model parts model parts section 4 model parts c27c35t 049-01368-03 speaker, oval, 6 x 13 cm 050-02576-05 connector & cable assy, 2.5mm, 4 contact, 1 up 924-10084 space command transmitter, mbr3457t 206-03590 instr book, operation guide a-18681-01 line cord assy with yeonho connector a...

  • Page 32: Model Parts (Continued)

    Cm152 4-2 xc - model parts model parts (continued) 992-10035 lens, ir 901-10005 addendum, operation guide 901-10006 instr book, operation guide (french) c32c41t 009-02168 module, main, with 2 pip, 6 jacks & keyboard, mts, digital comb 049-01368-03 speaker, oval, 6 x 13 cm 050-02576 connector & cable...

  • Page 33: Model Parts (Continued)

    Cm152 4-3 xc - model parts model parts (continued) c36c35tf 009-02169 module, main with 1 pip, 6 jacks & keyboard, mts, digital comb inv 049-01368-03 speaker, oval, 6 x 13 cm 050-02576 connector & cable assy, 2.5mm, 4 contact, 1 up 924-10084 space command transmitter, mbr3457t 206-03590 instr book, ...

  • Page 34: Model Parts (Continued)

    Cm152 4-4 xc - model parts model parts (continued) c36c41t8 009-02170-01 module, main 36v, 2 pip, 6 jack & keyboard, mts,digital comb 020-04330-34 coil, degausser 049-01368-03 speaker, oval, 6 x 13 cm 050-02361 connector and cable assembly, 35v ctv yoke 050-02576 connector & cable assy, 2.5mm, 4 con...

  • Page 35

    Cm152 4-5 xc - model parts component parts list component parts list reference chart the following information is for models in and out of warranty. The xc models are component level repair. To order parts: call 1-888-3-zenith fax 1-888-6-zenith by mail: zenith national parts sales and distribution ...

  • Page 36: Component Parts List

    Cm152 4-6 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in t...

  • Page 37: Component Parts List

    Cm152 4-7 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in t...

  • Page 38: Component Parts List

    Cm152 4-8 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in t...

  • Page 39: Component Parts List

    Cm152 4-9 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in t...

  • Page 40: Component Parts List

    Cm152 4-10 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in ...

  • Page 41: Component Parts List

    Cm152 4-11 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in ...

  • Page 42: Component Parts List

    Cm152 4-12 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in ...

  • Page 43: Component Parts List

    Cm152 4-13 xc - component parts note: this list will enable you to easily determine the parts used on each model, chassis, or assembly. Component parts list see reference chart on page 5 rc ref part# description rc ref part# description critical safety components are identified by the letter “x” in ...

  • Page 47: 27V Table Top Exploded View

    Cm152 5-1 xc - exploded views 3 4 2 7 5 6 1 8 section 5 27v table top exploded view 0%57 0%57 ref description c27c35t(f) c27c41t 1 front cabinet 814-10121 814-10121 2 speaker 049-01368-03 049-01368-03 3 keybord 846-10017 846-10017 4 ir lens 992-10035 992-10035 5 crt & yoke assembly a-19112 a-19112 6...

  • Page 48: 32V Table Top Exploded View

    Cm152 5-2 xc - exploded views 3 4 2 7 5 6 8 1 32v table top exploded view ref description c32c35t(f) c32c41t(f) 1 front cabinet 814-10123 814-10123 2 speaker 049-01368-03 049-01368-03 3 keybord 846-10017 846-10017 4 ir lens 992-10035 992-10035 5 crt & yoke assembly a-19276 a-19276 6 rear cabinet 814...

  • Page 49: 36V Table Top Exploded View

    Cm152 5-3 xc - exploded views 3 4 2 7 5 6 8 1 36v table top exploded view 0%57 0%57 ref description c36c35t(f) c36c35t8 c36c41t(f) c36c41t8 1 front cabinet 814-10125 814-10125 814-10125 814-10125 2 speaker 049-01368-03 049-01368-03 049-01368-03 049-01368-03 3 keybord 846-10017 846-10017 846-10017 84...

  • Page 50

    Cm152 5-4 xc - exploded views 32v traditional console exploded view ref description c32c84r 1 escutcheon 057-9069-27 2 main cabinet 814-10128 3 speaker 049-01257-08 4 crt & yoke assembly a-19107 5 rear cover 814-10140 6 main module 009-02168-01a 7 remote control 924-10085 0%57.

  • Page 51

    Cm152 5-5 xc - exploded views 32/36v contemporary exploded view ref description c32c86r c36c86r 1 escutcheon 057-09069-28 057-09079-04 2 main cabinet 814-10129 814-10130 3 speaker 049-01257-08 049-01257-08 4 crt & yoke assembly a-19107 a-18639 5 rear cover 814-10141 814-10142 6 main module 009-02168...

  • Page 52: Interconnect Diagram

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-1 xc sheet 1 section 6 interconnect diagram 9& &9 ,&...

  • Page 53: Power Supply

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-2 xc sheet 2 power supply 287 ,1 287 ,1 287 ,1 7+; 9...

  • Page 54: Audio Processor

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-3 xc sheet 3 audio processor ( % & ( % & ( % & ( % &...

  • Page 55: Main Processor

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-4 xc sheet 4 main processor 9 2 8 7 9 6 * 1 ' 50 50 ...

  • Page 56: Video Processor

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-5 xc sheet 5 video processor 9 6: 02'8/( 287387 9,'(...

  • Page 57

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-6 xc sheet 6 horizontal/vertical deflection ( % & ( ...

  • Page 58: Jack and Switch Circuit

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-7 xc sheet 7 jack and switch circuit ( % & ( % & ( %...

  • Page 59: Video Ouput

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-8 xc sheet 8 video ouput ( % & ( % & x6 9 :) x6 9 :)...

  • Page 60: Comb Filter Module

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-9 xc sheet 9 comb filter module ( % & ( % & ( % & ( ...

  • Page 61: Pip Module

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-10 xc sheet 10 pip module ( % & ( % & ( % & 9 6: 9 6...

  • Page 62: Pcb Layout

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-11 xc sheet 11 pcb layout : 5 ; ' ; : ' ; & ; & & ; ...

  • Page 63: Smd Layout

    Critical safety components are identified by the letter “x“ in their component designators. Replace only with part numbers specified. All symbols with “m” on end of designator indicate surface mounted component a b c d e f g 1 2 3 4 5 6 7 8 9 10 6-12 xc sheet 12 smd layout & 0 & 0 &0 & 0 50 5 0 &0 &...