Zenith SERVICE MANUAL Product Type: Chassis Manual Series: Manual Part #: Model Line: Product Year: Model Series: Commercial Color TV CL SR25 3828VD0171B F 2005 H19F34DT H20F34DT H24F34DT H25F34DT H24F39DT H25F39DT H27F34DT H27F39DT H24F36DT H25F36DT H27F36DT H32F36DT H27F36S CONTENTS General Information/Remote Controls................................ 1 Installer ’s Menu ............................................................2 Servicing/Trobleshooting ...............................................
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS IMPORTANT SAFETY NOTICE A.C. Voltmeter 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 without permission from Zenith Electronics Corporation.
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS X-Radiation To prevent possible exposure to x-radiation caused by excessive CRT anode voltage, the CL chassis incorporate a “High Voltage Shutdown” circuit. This circuit senses the level of a flyback pulse from the “Flyback Transformer” representative of the actual high voltage on the CRT anode. When this level exceeds a predetermined voltage, the circuit shuts down the TV set, preventing further generation of anode voltage.
TABLE OF CONTENTS SECTION 1......GENERAL INFO PRODUCT SAFETY SERVICING GUIDELINES i~ii INTRODUCTION ........................ 1-1 OVERVIEW ........................ 1-1 INTERFACES .......................... 1-2 SUPERPORT - MPI ................. 1-2 MULTIPLE PROTOCOL INTERFACE ...... 1-2 EBC (EDGE BOARD CARD) ............ 1-2 CONNECTION CENTER ON BACK OF TV .. 1-2 REMOTE CONTROL ...................... 1-4 LT-2000/02 CLONE PROGRAMMER ......... 1-5 QUICKSET II PROGRAMMER ........... 1-5 LEARN FROM TV ...........
OVERVIEW SHIELD FX3400 1 INTRODUCTION This manual covers the CL Chassis Commercial Sets. All suffix 36 models have stereo, surround, MPI, and super video ports. The CL series chassis features nine ICs for all signal, sync, and sweep processing. ICM2200 - Audio/video, sync and sweep drive processing. IC6000 - Main microprocessor. It is tied directly to the keyboard and the infrared detector. IC6001 - System memory. IC2100 - Vertical sweep amplifier. IC2901 - Video switch. ICX3612 - Power supply.
OVERVIEW (continued) INTERFACES CAMPORT Some models have video and right/left audio input jacks at the front of the receiver. These jacks can be used to view videotapes from a VCR or Camcorder. When the video cable is plugged into the jack, the shorting jumper J1 opens, placing a high at pin 10 of the IC6000 microprocessor. This switches the TV into the auxiliary mode. As long as the cables are attached, the TV set will be locked in auxiliary mode.
OVERVIEW (continued) CONNECTION CENTER ON BACK OF TV 4. S-VIDEO IN AND OUT These jacks are for input and output connections to SUPER-VHS video equipment. Use the input jack for viewing S-Video. Use the output jack to loop the SVideo signal to an additional TV or monitor. The right and left audio jacks are used for stereo input or output paired with the S-Video Signal. The connection center on the rear of the TV allows for connection of the viewing source.
REMOTE CONTROL POWER Press to turn TV ON or OFF MUTE Press to turn off sound while picture remains. Press again to restore sound. CC Press to access closed captions. CC FLSHBK Press to return to last TV channel you were watching. VOLUME Press left to reduce or right to increase volume level of TV. CHANNEL Up/Down Press to select a TV channel by going up/down through channels programmed in the TV memory. NUMBERED BUTTONS Press repeatedly to select desired menu. TIMER Press to activate SLEEP TIMER.
LT2000 & LT2002 CLONE PROGRAMMER NOTE: A slowly flashing green light indicates there is a problem with the communications between TV and programmer. In this case, check for damaged cable, poor contacts, or other connection problems. If the status indicator is red, the programmer batteries are low. If communications are good, the sign-on screen will be displayed on the TV screen as shown on the quick setup instructions.
LT-2000 & 2002 CLONE PROGRAMMER correct setup. Press any key to clear display and return to the clone selection menu. DISPLAY CLONE SETUP Select “DISPLAY CLONE SETUP” and then press ON/OFF, POWER, or ENTER to begin the teaching process. Alternatively, use the TV front panel CHANNEL UP or CHANNEL DOWN keys to highlight the choice, then press ON/OFF, POWER, or ENTER to begin. Using the on-screen menu, select a memory or return to the main selection menu.
USER MENUS Select any other channels to be changed, and when finished, press ENTER to close the menu. CH LABELS (CHANNEL LABELS) Press the MENU key on the remote so that the SETUP MENU reappears. Use the Up Arrow to choose the CH LABELS option. Pressing either the Right/Left arrow repeatedly, pick the label you want from the list of available selections shown in the chart. Select other channels, and when you are finished, press ENTER to remove the menu.
USER MENUS (continued) CLOCK SET Press MENU repeatedly to show the Setup menu. Use the Up/Down Arrows to highlight Clock Set. Set the current time; use the Number keypad to enter the hours, then minutes. For example, enter 06, then 30, to set 6:30 on the clock. Use the TIMER key to specify AM or PM. Press ENTER to strart the clock and return to TV viewing. TIMER On the optional installer’s remote, press MENU repeatedly until the Setup menu appears.
USER MENUS (continued) Note: Audio Menu is only available for 36 Series. In the Language menu, use the Right/Left arrow to choose one of the following options: English, Spanish, or French. Press ENTER to return to TV viewing. VIDEO MENU Press MENU repeatedly until the Video Menu appears. Your options are: AUDIO MENU Press MENU repeatedly on the remote control until the AUDIO MENU appears. AUDIO MENU • CONTRAST: Adjusts the contrast of the picture (difference between white and black).
USER MENUS (continued) Press ENTER to return to TV viewing, or press the Up / Down Arrows to change other options in the video menu. in the AUX SOURCES block option. (Blocks signals from VCRs, DVD players, etc. connected to the TV Audio/ Video input jacks). You could also leave AUX SOURCES unblocked, and then choose allowable ratings. PARENTAL CONTROL This optional feature can be used to prevent (block) unwanted programming from appearing on your TV.
USER MENUS (continued) ON-SCREEN DISPLAYS CHANNEL PREVIEW CHANNEL/TIME/AUDIO DISPLAY Press ENTER. Shows currently selected channel or source, current time if the clock has been set, and incoming audio signal. 2 3 4 5 6 7 8 9 10 CH PREVIEW MENU Press SURF. Displays list of the available TV Channels, Guest Parental Control menu (if active) and Video Channel access. CH Press CHANNEL UP/DOWN to select a channel, and then ENTER to go to that channel. Pressing CC will activate the Parental Control menu.
USER MENUS (continued) CAPTIONS DISPLAY Pressing CC in Quick Mode shows the current Caption selection, or Caption Off: SOURCE MENU Scrolling the menus using the Menu key can access the Source Menu.
SECTION 2 MODEL SERIES 34/36/39 INSTALLERS MENU INSTALLERS MENU OPTIONS INSTALLERS MENU ADJUSTMENTS Note: There are two microcontrollers available for the 39 series: OIMCRM1039A and OIMCRM1039B. 0-I INSTALLER SEQ: Range is 0-3. Determines the Sequence used to access Installers Menu. To access the Installer's Menu, press and hold the MENU key until the User Menu display disappears, then press 9876, and then ENTER to access the Installer's Menu.
MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 4-I STRT CHANNEL: Determines the channel that is selected automatically each time the TV is turned on. Range is 0-255. 0 is the Aux position and 255 is off. Use ADJUST to change the channel number. This feature is useful for an in-house information channel, since the TV would always tune the selected channel when the TV turns on. When inactive the TV retains the channel when the set was last used. VOLUME Up/Down.
MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 20-I FEATURE LEVEL: Default set to ZEN 1 for Zenith IR remote control operation. Set O, P LBL for Zenith Private Label IR remote control operation. Warning: Do not set to "0" or remote will not control TV. 30-I ACK MASK: Ignores the acknowledge flag that is sent from the local service provider. This is used with the "Spectramate" (SN: 0583358) cable box to mask the acknowledge in MPI communications. M.P.I. Communication Parameter.
MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 60-I EN. VID. COL.: Disable/Enable use custom colors for Video Menu. Zero is disable and 1 is enable. 45-I NOT USED 46-I STRT AUX SRCE: Determines the Aux that is selected automatically each time the TV goes to the aux channel. There are 3 possible values depending on the Enables switches. 0 is the Camport position and 255 is off (See the table). Use ADJUST to change the Auxiliary number. 0 Camport 1 Rear Aux 2 Rear Y/C 61-I FOR. VIDEO M.
MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 74-I CH-TIME SIZE: When set to 1 and transparent background is selected for Channel-Time display, (foreground color = background color and custom color enabled) a large channel number is displayed instead of the normal Channel-Time display, however just the Ch number is displayed. Range is 0-1. Zero is disable and 1 is enable. 84-I PERMANENT BLK: Enables the parental control permanent blocking time. Range is 0-1. Zero is disable and 1 is enable.
MODEL SERIES 34/36/39 INSTALLERS MENU (continued) ITEM 0-I. INSTALLER SEQ 1-I. POWER MANAGE 2-I. AC ON 3-I. BAND/AFC 4-I. STRT CHANNEL 5-I. CHAN LOCK 6-I. GHOST CH, 7-I. STRT VOLUME 8-I. MIN VOLUME 9-I. MAX VOLUME 10-I. MUTE DISABLE 11-I. KEY DEFEAT 12-I. IR BANKS EN. 13-I. SCAN MODE 14-I. STRT CH IN SM 15-I. SLEEP TIMER 16-I. EN. TIMER 17-I. ALARM 18-I. NOT USED 19-I. NOT USED 20-I. FEATURE LEVEL 21-I. V-CHIP 22-I. MAX BLK HRS 23-I. CAPTION LOCK 24-I. TEXT MODE 25-I. FUNCTION PRE 26-I. NOT USED 27-I.
MODEL SERIES 34/36/39 INSTALLERS MENU (continued) ITEM 51-I. DIS. V-CHIP M. 52-I. DIS. SOURCE M. 53-I. DIS. CH-TIME M. 54-I. EN. SET. COL. 55-I. FOR. SETUP M. 56-I. BCK SETUP M. 57-I. EN. AUDIO COL. 58-I. FOR. AUDIO M. 59-I. BCK AUDIO M. 60-I. EN. VIDE COL. 61-I. FOR. VIDEO M. 62-I. BCK VIDEO M. 63-I. EN. PTL. COL. 64-I. FOR. PTL. M. 65-I. BCK. PTL. M. 66-I. EN. SCR. COL. 67-I. FOR. SCR. M. 68-I. BCK SCR. M. 69-I. EN. CH-T COL. 70-I. FOR. CH-T COL 71-I. BCK CH-T COL 72-I.
SECTION 2 CL MODEL SERIES 34 & 36 FACTORY MENU 6-F VIF VCO ADJ: (PIF Voltage Oscillator). Range is 063. FACTORY MENU DESCRIPTION FOR SERIES 34 & 36 0-F FACT MENU: Use SELECT UP and DOWN Keys to select item 00, the Factory Mode. The Factory uses this item when the module is being tested. It has two positions: 0 and 1. In the field, this item should always be left off (Zero is off). 7-F VIF VOUT GAIN: VIF video detector output level adjustment at pin 58. Range is 0-7, typical value is 2.
CL MODEL SERIES 34 & 36 FACTORY MENU 24-F MAX CONTRAST: See adjustment range of customer control for contrast. Range is 0-63. Typical value is 63. 41-F AFC2 GAIN: Horizontal AFC2 Gain switch. The range is 0-1. 25-F TRAP 3.58: 0=Off & 1=On. Set 1 to normal TV operation. Set to 0 is Y/C is being used at chassis with a comb filter. 42-F HVCO ADJ: Horizontal free running frequency adjustment. Range 0-7, typically set at 4.
CL MODEL SERIES 34 & 36 FACTORY MENU CL Chassis Series 34 & 36 Factory Menu Settings ITEM RANGE H25F36DTH27F36DTH32F36DTH19F34DTH20F34DTH25F34DTH27F34DT DESCRIPTION 00-F. FACT MENU 0-1 0 0 0 0 0 0 0 Factory mode, refer to page 2-8 01-F. PRESET PX 0-1 1 1 1 0 0 1 1 Used to store video adjustments 02-F. PRESET AX 0-1 1 1 1 1 1 1 1 Used to store audio adjustments 03-F. VERT. POS 0-30 15 15 15 15 15 15 15 Moves On Screen display vertically 04-F.
CL MODEL SERIES 39 FACTORY MENU 05-F VIF VCO ADJ: (PIF Voltage Oscillator). Range is 063. FACTORY MENU DESCRIPTION FOR 39 SERIES. Note: There are two microcontrollers available for the 39 series: OIMCRM1039A and OIMCRM1039B. 06-F VIF VOUT GAIN: VIF video detector output level adjustment at pin 58. The range is 0-7, typical value is 2. 00-F FACT MENU: Use SELECT UP and DOWN Keys to select item 00, the Factory Mode. The Factory uses this item when the module is being tested. It has two positions: 0 and 1.
CL MODEL SERIES 39 FACTORY MENU 21-F Y DL TIME AUX: Luma signal delay time adjustment on Aux Mode. Range is 0-6. Typically set to 3. 38-F HV BLK OFF: Horizontal and vertical blanking Off/ On RGB out switch. The range is 0-1, typically set at 0 = On blanking output. 22-F CHROMA BP-AUX: Chroma Band Pass Filter for Aux Mode. 0= BPF is On, 1=Take off. Typically set in 0. 39-F V SYNC DET: Vertical sync det minimum width switch. Default 1, typically set at 1. 23-F AUX SUBTINT: Hue adjustment on Aux Mode.
CL MODEL SERIES 39 FACTORY MENU 00-F. 01-F. 02-F. 03-F. 04-F. 05-F. 06-F. 07-F. 08-F. 09-F. 10-F. 11-F. 12-F. 13-F. 14-F. 15-F. 16-F. 17-F. 18-F. 19-F. 20-F. 21-F. 22-F. 23-F. 24-F. 25-F. 26-F. 27-F. 28-F. 29-F. 30-F. 31-F. 32-F. 33-F. 34-F. 35-F. 36-F. 37-F. 38-F. 39-F. 40-F. 41-F. 42-F. 43-F. 44-F. 45-F. 46-F. 47-F.
SERVICING +12 VSB at CX3613 +14 at CX3610 +5 VSB at CX3841 GENERAL INFORMATION Servicing the CL 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 and the set will turn on, the Horizontal sweep circuit should be checked next.
SERVICE ADJUSTMENTS (continued) MICROPROCESSOR SHUTDOWN CIRCUIT OPERATION Check the following: IR in on pin 15 +5 volts on pins 27 and 18 Serial Data, Serial Clock on pins 36 and 38 Reset at pin 30 Horiz. SYNC at pin 1, Vertical SYNC at pin 2 R Out at pin 52, G Out at pin 51 and B Out at pin 50 (Refer to figure below) The flyback pulse voltage from pin 6 of TX3204 (flyback transformer) is peak detected (rectified) by the action of the diode DX3006 and capacitor CX3003.
SERVICE ADJUSTMENTS (continued) components. After replacement is made, confirm proper anode voltage using the following procedure. Measurement of the CRT anode voltage must be performed using a high impedance-high voltage meter, with no raster on the screen, and operating at normal horizontal frequency. 15.75 KHz. (NTSC signal). After discharging the CRT, connect a high impedancehigh voltage meter to the CRT anode. Turn the television "on" and confirm a good signal is being displayed.
SERVICE ADJUSTMENTS (continued) IF SERVICING ADJUSTMENT OF RGB CUTOFF VIDEO DETECTOR Note: If the Main Module or the CRT has been replaced, G2 must be readjusted before adjusting the RGB Cutoff. If there is no viewable picture on screen, access the Service Menu and check default settings for the following items: 1. Enter the Service menu to gain access to the cutoff adjustments. (Factory mode item 00 must be set to 1 to gain access to this adjustment). #5 RF ADJ should be at least 30. 2.
SERVICE ADJUSTMENTS (continued) SWITCHING PROCESS Close caption is achieved by taking a signal from the YSW-OUT pin (31) of the video processor. Video switching is done between the CV inputs and the Y/C inputs. There are three CV signals to consider: SENSING AND PRIORITIES CAMPORT VIDEO enters at pin 7 of IC2901. REAR VIDEO enters at pin 5 of IC2901. IF Video enters at TV pin 12 of IC2901. CL-Series 34 & 39 models do not have a source menu.
SERVICE ADJUSTMENTS (continued) PURITY & CONVERGENCE SETUP PROCEDURE PRELIMINARY SETUP CONVERGENCE ADJUSTMENT 1. Allow the receiver to warm up for 15 to 20 minutes. 1. Release locking assembly. 2. Degauss the CRT. 2. Connect crosshatch generator to the receiver and adjust static (center) convergence as follows: 3. Connect a crosshatch generator to the receiver and “rough in” the static (center) convergence. Follow the Convergence Procedure. a.
SERVICE ADJUSTMENTS (continued) VERTICAL-TILT WEDGE ADJUSTMENT IMPROVING CRT CORNER PURITY 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. CRTs that display corner purity problems even after following the service procedures can be modified with a picture correction kit (P/N 949-00050).
MODEL PARTS PARTS All CL models are module level repair only.
MODEL PARTS Item number 4810V00739A 3091V00B66A 3809V00332A 6140VC8003C 6400VSNX01A 3790V00711A 3828VA0A30A 6411VUH003A 6335V27001A 170-844J 3141VSNC61C 3141VMNP44C 6631V25014G 6710V00108A 6871VSMV33A H27F34DT Part description Cabinet Tray Cabinet Front Back Cover Asse (Cabinet Rear) Coil, Degaussing Speaker, Oval, 6 X 13 cm Crystal Window Instr Book, Operation Guide Power Cord Assembly Line Cord and Terminals Assembly CPT Assembly with Deflection Yoke CPT Earth_Gnd Strap Assy, CRT Keyboard Assy, 6 Key Mo
MODEL PARTS Item number 4810V00739A 3091V00B80A 3809V00B07A 6140VC8003B 5016V20002A 3790V00711A 3828VA0A30P 6411VUH003A 6335V24002A 170-844G 3141VSNC61C 3141VMNP46P 6631V25014G 6710V00108A 6871VSMV33A H24F36DT Part description Bracket, Jack Pack Cabinet Front Back Cover Asse (Cabinet Rear) Coil, Degaussing Magnetic, Stick Ferrite (Convergence Helper) Crystal Window I nstr Book, Operation Guide Power Cord Assembly Line Cord and Terminals Assembly CPT Assembly with Deflection Yoke CPT Earth_Gnd Strap Assy,
Cl Commercial 19”Exploded View REF 1 2 3 4 5 6 7 8 DESCRIPTION FRONT CABINET (CABINET ASSEMBLY) SPEAKER (SPEAKER FULL RANGE) KEYBOARD ASSEMBLY IR LENS CPT & YOKE ASSEMBLY REAR CABINET (BACK COVER ASSEMBLY) MAIN MODULE (CHASSIS ASSEMBLY) REMOTE CONTROL H19F34DT 3091V00B81B 6400VSNX01A 3141VSNC61A 3790V00712A 6335V20A03A 3809V00B08B 3141VMNP44A 6710V00108A 6 5 7 2 3 POWER MUTE FLSHBK CC 4 ME VOLU 1 2 4 5 7 8 0 TIMER EL 3 6 9 ENTER ALARM CH PREVIEW 1 SR25 - 3828VD0171B CHANN 8 5-1
Cl Commercial 20”Exploded View REF 1 2 3 4 5 6 7 8 DESCRIPTION H20F34DT 3091V00485A 6400VESU01A 3141VSNC61B 3790V00715A 6335V20A03A 3809V00334A 3141VMNP44A 6710V00108A FRONT CABINET (CABINET ASSEMBLY) SPEAKER (SPEAKER FULL RANGE) KEYBOARD ASSEMBLY IR LENS CPT & YOKE ASSEMBLY REAR CABINET (BACK COVER ASSEMBLY) MAIN MODULE (CHASSIS ASSEMBLY) REMOTE CONTROL 6 5 4 7 2 capt io vol vol ch ch power 1 SR25 - 3828VD0171B POWER MUTE K FLSHB CC VOLUM n 3 E CHANNE 1 2 3 4 5 6 7 8 9 0 TIMER L
Cl Commercial 24”Exploded View REF 1 2 3 4 5 6 7 8 DESCRIPTION FRONT CABINET (CABINET ASSEMBLY) SP EAK ER (SP EAK ER F U LL R ANGE) K EYBOAR D ASSEMBLY WINDOW CP T & YOK E ASSEMBLY R EAR CABINET (BACK COV ER ASSEMBLY) MAIN MODU LE (CH ASSIS ASSEMBLY) REMOTE CONTROL H24F34DT H24F36DT H24F39DT 3091V00B80A 120-C77G 3141VSNC61C 3790V00711A 6335V24002A 3809V00B07A 3141VMNP44H 6710V00108A 3091V00B80A 120-C77G 3141VSNC61C 3790V00711A 6335V24002A 3809V00B07A 3141VMNP46P 6710V00108A 3091V00B80A 120-C77G 3141
Cl Commercial 25”Exploded View REF 1 2 3 4 5 6 7 8 DESCRIPTION FRONT CABINET (CABINET ASSEMBLY) SPEAKER (SPEAKER FULL RANGE) KEYBOARD ASSEMBLY IR LENS CPT & YOKE ASSEMBLY REAR CABINET (BACK COVER ASSEMBLY) MAIN MODULE (CHASSIS ASSEMBLY) REMOTE CONTROL H25F34DT H25F36DT H25F39DT 3091V00B80A 6400VSNX01A 3141VSNC61C 3790V00711A 6335V27003A 3809V00B07A 3141VMNP44B 6710V00108A 3091V00B80A 6400VSNX01A 3141VSNC61C 3790V00711A 6335V27003A 3809V00B07A 3141VMNP46A 6710V00108A 3091V00B80A 6400VSNX01A 3141VSNC6
Cl Commercial 27”Exploded View REF 1 2 3 4 5 6 7 8 DESCRIPTION FRONT CABINET (CABINET ASSEMBLY) SPEAKER (SPEAKER FULL RANGE) KEYBOARD ASSEMBLY IR LENS (REMOTE CONTROLLER RECEIVER) CPT & YOKE ASSEMBLY REAR CABINET (BACK COVER ASSEMBLY) MAIN MODULE (CHASSIS ASSEMBLY) REMOTE CONTROL H27F34DT H27F36DT H27F36S H27F39DT 3091V00B66A 6400VSNX01A 3141VSNC61C 6712SCA227A 6335V27001A 3809V00332A 3141VMNP44C 6710V00108A 3091V00B66A 6401VC0134J 3141VSNC61C 6712SCA227A 6335V27001A 3809V00332A 3141VMNP46B 6710V0010
Cl Commercial 32”Exploded View POWER MUTE K FLSHB CC U VOL REF 1 2 3 4 5 6 7 8 DESCRIPTION FRONT CABINET (CABINET ASSEMBLY) SPEAKER (SPEAKER FULL RANGE) KEYBOARD ASSEMBLY IR LENS CPT & YOKE ASSEMBLY REAR CABINET (BACK COVER ASSEMBLY) MAIN MODULE (CHASSIS ASSEMBLY) REMOTE CONTROL H32F36DT ME 1 2 4 5 7 8 0 3091V00B56A 6400VSNX01A 3141VSNC61C 3790V00711A 6335V32012A 3809V00B09A 3141VMNP46C 6710V00108A EL CHANN TIMER 3 6 9 ENTER ALARM CH PREVIEW 8 6 1 5 2 4 3 SR25 - 3828VD0171B 7 5-6
Power Supply Circuit 3 4 5 G HOT CN4T8 366-043B 6 6322V62206A TP3400 HOT (19,20V) D5SB60 LX3400 VRX3400 164-003D 560V SPGND 387-917F E D-CTL 3 Deg-Ctl TP3401 0DD260000BB D2SBA60(STK) Power Control This schematic refers to CL Chassis models D C H19F34DT H20F34DT H25F34DT H25F39DT H27F34DT H27F39DT H25F36DT H27F36DT H32F36DT CX3401 0.
Main Micro Circuit 1 2 3 4 5 6 7 8 9 10 Y/C-SENSE SHUTDOWN G HORZ-SIZE R G B WF21 PWR-CTRL FASTBLANK WF17 Power Control RM6002 H-SYNC F 1K V-SYNC Luma (Micro) CM6001 PROV 50V V-SYNC CM6002 PROV 50V TP6015 AFC H-Sync CM6042 0.01 25V CM6093 47pF 50V CM6079 47pF 50V CM6090 47pF 50V CM6091 IR-DATA W6002 WF16 WF19 -V -V 50.0 mS 25.0 µS ZD6002 9.1V 0DZ910009AJ +5V SBF 1/2W WF20 -V -V 13 47pF 14 50V RM6076 2.2K RM6020 5.
Deflection Circuit 1 2 G 3 WF3 WF6 1.47 V 4.52 V 4 5 6 7 8 +215V +215V RX3208 1 TP3204 0DR150009EA RGP15J P/L C R3252 10K 10K CX2114 330µF 50V CX3211 PROV 2KV C3260 PROV 50V E RX3256 B 4.3K C QX3251 4921V00N11U 0TR104600AB 4920V00008D KTA1046YU R3255 1.2K R3262 68K R3203 300 2W R3260 220 RM3201 1K W3203 971-16 DX2104 0.
Video Processor Circuit 1 2 3 4 5 6 RM1211 1K G RM1210 RM1208 Red 100 RM1203 1.5K RM1202 390 GND A CM1202 1000pF 50V WF10 Composite Video IF CM1214 GND A 5.26 V Sound IF E WF12 Composite Audio (( (( WF9 1.55 V V ABL RM1227 PROV L1207 10µH +5V SW 10.0 µS GND CM1221 0.1 16V A VERT-DRIVE +5V SW WF13 Subcarrier Signal FSC 40.8 V D2201 IF CM2238 0DD414809ED 10.0 µS 1000pF 50V 4.7K D Vertical RM2251 3.
Audio Processor Circuit 1 2 3 4 G 5 6 7 8 9 10 IC1400 0IMCRMN013A MSP-3425G 1 2 TP XTAL_OUT NC XTAL_IN 3 CM1409 2pF 50V 52 CRY1400 156-A02M 18.432MHz 51 TESTEN 50 4 5 Audio In R Audio In L Aux1-R A1R 6 R1401 100 R1402 100 SCL SDA 7 8 9 Aux1-L A1L E A2L 10 Aux2-L D_CTR_I/O0 NC ADR_SEL ANA_IN- STANDBYQ ANA_IN+ I2C_CL AVSUP I2C_DA AVSS I2S_CL MONO_IN I2S_WS VREFTOP 11 Q1402 0TR945009AA KSC945C-Y 49 48 CM1411 47 56pF 50V C CM1425 B 0.
A/V Switch Circuit 1 2 3 4 5 6 7 8 9 10 WITH COMB G A3L Aux3-L TV A3R Aux3-R +9V SW CM2473 180pF L2471 4.7µH RM2471 33 RM2473 4.7K CM2472 270pF NO COMB Luma-Comb (Y-IN) F Chroma-Comb (C-IN) CAMPORT-SENSE Luma Rear (Y-IN) Y/C-SENSE R2911 22K R2909 22K R2912 22K R2910 22K CV-COMB R2930 C2474 CM2471 10µF 50V JM2471 100pF 50V RM2471 P/L 2.
MPI Card Circuit 1 2 3 4 5 6 7 8 G +5V SBF R4995M 10K 11E1 R4996 +11V +5V 58-661 470 1 F 2 SBF Q4906 121-1310A +11V C R4993 B GND 3 MPI_DATA_IN 4 MPI_DATA_OUT 10K E C4967 R4994M R4997 220pF 22K 10K 50V 5 6 MPI +5V SBF 078-3481-01 7 R4992 8 E 9 10 D 220 121-1310A GND IR_DATA C4946 +5V 100uF SBF 2 C C4966 R4991 11 This schematic refers to CL Chassis models 1 Q4905 B 220pF E 4 16V 5 R4990 4.
Video Output Circuit 1 2 3 4 5 6 7 8 9 G 215 WF43 VDC 1.73V 20 US L5100 WF 43 120uH RX5104 C5101 20-03907-25A 1uF 12K 350V 2W R5103 2 150K 128.2 BLUE C B Q5101 AMP L5102 E 3.6 WF45 R5102M 47 C5103M R5105 C5102M R5105M 1/2W 50V 1uH 1 20 uS PROV 150 125-022K 4.60V 470pF 1K 0TR322900AA 1K 1/2W 4.
Edge Card Circuit 1 2 3 4 5 6 7 8 9 G F CON1 1E11 P078-3571 E 1 +11V 1 2 PS_GND 2 3 4 3 MPI_DATA_IN 58-542-10 +11V 1 PS_GND 2 BUFFERED_MPI_DIN SPI_DATA_OUT 5 6 SPI_DATA_IN 6 MPI_DOUT 5 SPI_DATA_IN 6 SPI_CLOCK 8 DATA_GND 8 9 +5VBA 9 10 BUFFERED_IR_DATA_OUT 10 11 CLONESENSE/PTY_SELECT 11 DATA_GND +5VBA This schematic refers to CL Chassis models H19F34DT H20F34DT H25F34DT H25F39DT H27F34DT H27F39DT H25F36DT H27F36DT H32F36DT +5VBA 7 8 9 10 2E6 P078-357
Audio Amplifier Circuit 1 2 3 4 5 6 7 8 9 10 G +14V AUD TP800 4921V00N11Q 0ISA426100A 4920V00010 LA4261 C813 100µF 16V F C802 1000µF 25V CM801 0.01 25V IC800 GND TP801 C815 RM813 150 3 9 10 2 C814 0.1 50V 5 R814 3.3 1 C811 AUDIO-AMP-RIGHT 10µF 50V C821 Audio Out R AUDIO-AMP-LEFT 10µF 50V RM811 3.9K RM821 3.9K Audio Out L E RM812 1.8K TP1404 RM823 C823 150 100µF 16V RM822 1.
Comb Filter Circuit 1 2 3 4 5 6 7 8 9 10 G W2450 COMB FILTER MODELS ONLY P/L +5V CMB +8V SW L2402 L2403 100µH F 10µH CM2411 0.01 25V C2412 47µF 16V C RM2412 B FSC E 1 C2414 47µF 16V Luma Comb (Y-IN) Composite Video “Comb Filter” CM2401 CM2404 12pF 50V RM2401 0.
Block Diagram 1 2 3 4 5 6 7 8 9 10 G 11V VIDEO OUT 1.2Vp-p 8.7V 62 RF AGC OUT IF AGC 58 55 VIF VCO ADJ RF AGC 59 60 61 30 32 42 SAW E IF IN VIF IN 64 DEFEAT 45 NC 46 NC C H19F34DT H20F34DT H25F34DT H25F39DT H27F34DT H27F39DT H25F36DT H27F36DT H32F36DT BLACK STRETCH MUTE VIDEO MUTE DET ADJ Y SW LPF 31 DELAY RGB MATRIX CONTRAST DRIVE R B BRIGHT DRIVE AMP TINT ANGLE REF FILTER CHROMA BPF DL TIME DL TIME SW LPF F.
TX3204 W1250 W5 W6 C2221 CX2110 W35 W40 IC2902 R2930 W47 IC2901 W44 W42 W43 W45 RX2110 1 C815 E B C E C R2926 E C E QX3251 B W33 B L2404 R2418 C2409 CN3Y3 CX3216 DX3250 CX3256 CX3252 RX3215 LX3262 LX3202 CX3217 W18 W17 L1402 C2228 W63 E C W3203 B CX 3 400 W65 CN4T8 W1 W148 W149 W67 C2241 - G51 B FB3600A DX3602 C E D2602 E B C2610 B G55 CN4R8 RX3605 G29 RX3604 C2609 C2215 W6002 TO A.C.
+ CM6045 CM6018 CM6099 CM6056 1 CM6015 CN10VGA1 CX3856 RX3853 RM6050 D6001 » D2601 W91 C2215 + C2608 RM2610 RM2611 RM2612 C2241 CM2213 + CM2419 CM2481 RM2481 CM2421 RM2407 RM2408 RM2921 JM2901 RM2920 CM2907 RM2925 RM2922 RM2924 E C B W44 RM2923 JM2902 Q2902 R2926 1 + W40 HP R2903 R2904 R2930 C2910 CM2906 JM2903 ZD2902 W94 GND-VID GND-VID GND-VID NC GND-VID GND-VID LUMA-IN YC-SENSE CHROMA-IN NC GND-YC ZD2901 C2228 C2230 + C2413 Q2404 Q2901 + W45 + C2905 W41
DAG1 R5107 W2 CRT2 CRT1 R5103 R5105 C Q5104 E R5127 R5126 C5110 R5125 B W5103 W5100 W5102 W5104 W3 RX5104 L5100 W1 C5101 D5102 B R5129 W200 1 C B E C L5102 R5114 Q4905 1 DAG2 W201 DAG R4993 R4996 E RX5111 5C2 D5105 MPI C4966 R4990 R4991 C4946 1 1 1 ALL SYMBOLS WITH “M” ON THE DESIGNATOR INDICATE SURFACE MOUNTED COMPONENT.
PCB Bottom Layout R5121M C5109M R4986M R4989M C5106M R5113M R5112M R5109M C5105M R4985M R5120M R5118M R5108M C5118M R4995M R5117M R4994M R5124M C5102M R5101M C5103M R5102M R5106M R5105M SR25-3828VD0171B CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. 6-16 ALL SYMBOLS WITH “M” ON THE DESIGNATOR INDICATE SURFACE MOUNTED COMPONENT.
zenith
