Table of Contents
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Z e n i t h
SERVICE MANUAL
SERVICE MANUAL
Product Type:
Chassis
Manual Series:
Manual Part #:
Model Line:
Product Year:
Printed in U.S.A.
Commercial Color TV
CL
SR25
3828VD0171B
F
2005
CONTENTS
General Information/Remote Controls................................
Installer 's Menu ............................................................
Servicing/Trobleshooting ................................................
Model/Module Parts List .................................................
Exploded Views .............................................................
Schematics ...................................................................
Published by
Technical Publications
Zenith Electronics Corporation
P .O. Box 240007
Huntsville, Al 35824
Copyright
©
May 2005 by Zenith Electronics Corporation
Model Series:
H19F34DT
H20F34DT
H24F34DT
H25F34DT
H24F39DT
H25F39DT
H27F34DT
H27F39DT
H24F36DT
H25F36DT
H27F36DT
H32F36DT
H27F36S
1
2
3
4
5
6
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Table of Contents
Related Manuals for Zenith H19F34DT Series
Summary of Contents for Zenith H19F34DT Series
- Page 1 Installer ’s Menu ............Servicing/Trobleshooting ..........Model/Module Parts List ..........Exploded Views ............. Schematics ..............Published by Technical Publications Zenith Electronics Corporation P .O. Box 240007 Huntsville, Al 35824 Copyright © May 2005 by Zenith Electronics Corporation Printed in U.S.A.
- Page 2 When servicing this product, under no circumstances should the original design be modified or altered without permission from Zenith Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
- Page 3 RX3016 RX3706 olds. If replacement of any of these components are deemed necessary, it is important to use original type Zenith compo- HV SHUTDOWN PROCEDURE. nents. After replacement is made, confirm proper anode voltage using the following procedure.
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Page 4: Table Of Contents
TABLE OF CONTENTS SECTION 1..GENERAL INFO AGC DELAY ....... 3-4 PRODUCT SAFETY SERVICING GUIDELINES i~ii G2 ADJUSTMENT......3-4 INTRODUCTION ......1-1 FOCUS ADJUSTMENT ....3-4 OVERVIEW ......1-1 ADJUSTMENT OF RGB CUTOFF ..3-4 INTERFACES ......1-2 SWITCHING PROCESS....3-5 SUPERPORT - MPI ....1-2 SENSING AND PRIORITIES.....3-5 MULTIPLE PROTOCOL INTERFACE .. -
Page 5: Introduction
OVERVIEW 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. -
Page 6: Interfaces
SUPERPORT - MPI These cards might contain one of the above features. Zenith Commercial Product receivers are now being CONNECTION CENTER ON BACK OF TV adapted to interact with other equipment. Prime The connection on the back of the TV contains the examples of this can be found in Lodging and Health input and output interfaces. -
Page 7: Ebc (Edge Board Card)
OVERVIEW (continued) CONNECTION CENTER ON BACK OF TV 4. S-VIDEO IN AND OUT These jacks are for input and output connections to The connection center on the rear of the TV allows for SUPER-VHS video equipment. Use the input jack for connection of the viewing source. -
Page 8: Remote Control
REMOTE CONTROL POWER MUTE Press to turn TV ON or OFF Press to turn off sound while picture remains. Press again Press to access closed captions. to restore sound. FLSHBK Press to return to last TV channel you were watching. VOLUME CHANNEL Up/Down Press left to reduce or right to... -
Page 9: Quickset Ii Programmer
LT2000 & LT2002 CLONE PROGRAMMER NOTE: A slowly flashing green light indicates there is a problem with the communications between Status TV and programmer. In this case, check for Indicator damaged cable, poor contacts, or other connection problems. If the status indicator is red, the programmer batteries are low. -
Page 10: Set Clone Clock From Tv
LT-2000 & 2002 CLONE PROGRAMMER Using the on-screen menu, select a memory or return correct setup. Press any key to clear display and return to the main selection menu. Then press ON/OFF, POWER, to the clone selection menu. or ENTER to activate the selection. DISPLAY CLONE SETUP The next screen allows for one last opportunity to check Select “DISPLAY CLONE SETUP”... -
Page 11: User Menus
USER MENUS Select any other channels to be changed, and when fin- SETUP MENU ished, press ENTER to close the menu. Press the MENU key on the Installer’s remote repeatedly CH LABELS (CHANNEL LABELS) so that the SETUP MENU appears on the screen. Press the MENU key on the remote so that the SETUP MENU reappears. -
Page 12: Clock Set
USER MENUS (continued) CLOCK SET ·On time Press MENU repeatedly to show the Setup menu. Use the Sets a time that the TV will turn itself On each day. Up/Down Arrows to highlight Clock Set. ·Off Time Set the current time; use the Number keypad to enter Sets a time that the TV will turn itself Off each day. -
Page 13: Audio Menu
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, VIDEO MENU or French. Press ENTER to return to TV viewing. Press MENU repeatedly until the Video Menu appears. -
Page 14: Parental Control
USER MENUS (continued) Press ENTER to return to TV viewing, or press the Up / in the AUX SOURCES block option. (Blocks signals from Down Arrows to change other options in the video menu. VCRs, DVD players, etc. connected to the TV Audio/ Video input jacks). -
Page 15: On-Screen Displays
Not for children under age 17 under any circumstances. Strong sexual content. Hard Core Films Same as NC-17 rating. Note: Zenith Electronics Corporation is not liable for any program content that appears when using this rating system; as always, user discretion is advised. TV PARENTAL GUIDELINE RATING SYSTEM General Audiences Content not offensive to most viewers. -
Page 16: Captions Display
USER MENUS (continued) CAPTIONS DISPLAY SOURCE MENU Pressing CC in Quick Mode shows the current Caption Scrolling the menus using the Menu key can access the selection, or Caption Off: Source Menu. SOURCE MENU ANTENNA/ CABLE CAMPORT S-VIDEO AUX VIDEO CAPTION IS ON PRESS TO CHANGE... -
Page 17: Section 2
SECTION 2 MODEL SERIES 34/36/39 INSTALLERS MENU INSTALLERS MENU OPTIONS INSTALLERS MENU ADJUSTMENTS Note: There are two microcontrollers available for the 0-I INSTALLER SEQ: Range is 0-3. Determines the Se- 39 series: OIMCRM1039A and OIMCRM1039B. quence used to access Installers Menu. To access the Installer's Menu, press and hold the MENU Inst. - Page 18 MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 4-I STRT CHANNEL: Determines the channel that is se- VOLUME Up/Down. In this way, for example, someone lected automatically each time the TV is turned on. Range cannot set the volume level high enough to disturb oth- is 0-255.
- Page 19 MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 20-I FEATURE LEVEL: Default set to ZEN 1 for Zenith IR 30-I ACK MASK: Ignores the acknowledge flag that is remote control operation. Set O, P LBL for Zenith Private sent from the local service provider. This is used with the Label IR remote control operation.
- Page 20 MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 45-I NOT USED 60-I EN. VID. COL.: Disable/Enable use custom colors for Video Menu. Zero is disable and 1 is enable. 46-I STRT AUX SRCE: Determines the Aux that is selected automatically each time the TV goes to the aux channel. 61-I FOR.
- Page 21 MODEL SERIES 34/36/39 INSTALLERS MENU (continued) 74-I CH-TIME SIZE: When set to 1 and transparent back- 84-I PERMANENT BLK: Enables the parental control per- ground is selected for Channel-Time display, (foreground manent blocking time. Range is 0-1. Zero is disable and color = background color and custom color enabled) a 1 is enable.
- Page 22 MODEL SERIES 34/36/39 INSTALLERS MENU (continued) CL Chassis Installers Menu Settings ITEM VALUE RANGE DEFAULT VALDESCRIPTION 0-I. INSTALLER SEQ Leave default set to 0. 1-I. POWER MANAGE Sets number of hours of no activity before auto shutoff. 2-I. AC ON Set to 1 to enable auto turn on at power up.
- Page 23 MODEL SERIES 34/36/39 INSTALLERS MENU (continued) CL Chassis Installers Menu Settings ITEM VALUE RANGE DEFAULT VALDESCRIPTION Set to 1 to disable V-Chip (Parental Control) menu. 51-I. DIS. V-CHIP M. Set to 1 to disable Source Menu. 52-I. DIS. SOURCE M. Set to 1 to disable Channel-Time display.
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Page 24: Section 3
SECTION 2 CL MODEL SERIES 34 & 36 FACTORY MENU 6-F VIF VCO ADJ: (PIF Voltage Oscillator). Range is 0- 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 7-F VIF VOUT GAIN: VIF video detector output level ad- when the module is being tested. - Page 25 CL MODEL SERIES 34 & 36 FACTORY MENU 24-F MAX CONTRAST: See adjustment range of customer 41-F AFC2 GAIN: Horizontal AFC2 Gain switch. The range control for contrast. Range is 0-63. Typical value is 63. is 0-1. 25-F TRAP 3.58: 0=Off & 1=On. Set 1 to normal TV opera- 42-F HVCO ADJ: Horizontal free running frequency ad- tion.
- Page 26 CL MODEL SERIES 34 & 36 FACTORY MENU CL Chassis Series 34 & 36 Factory Menu Settings RANGE H25F36DTH27F36DTH32F36DTH19F34DTH20F34DTH25F34DTH27F34DT ITEM DESCRIPTION 00-F. FACT MENU Factory mode, refer to page 2-8 01-F. PRESET PX Used to store video adjustments 02-F. PRESET AX Used to store audio adjustments 03-F.
- Page 27 CL MODEL SERIES 39 FACTORY MENU 05-F VIF VCO ADJ: (PIF Voltage Oscillator). Range is 0- 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 00-F FACT MENU: Use SELECT UP and DOWN Keys to select adjustment at pin 58.
- Page 28 CL MODEL SERIES 39 FACTORY MENU 21-F Y DL TIME AUX: Luma signal delay time adjustment 38-F HV BLK OFF: Horizontal and vertical blanking Off/ on Aux Mode. Range is 0-6. Typically set to 3. On RGB out switch. The range is 0-1, typically set at 0 = On blanking output.
- Page 29 CL MODEL SERIES 39 FACTORY MENU CL Chassis Series 39 Factory Menu Settings H25F39DT H27F39DT ITEM RANGE DESCRIPTION 00-F. FACT MENU Factory mode - refer to page 2-11 01-F. PRESET PX Used to store video menu adjustments 02-F. VERT POS 0-30 Moves On Screen display vertically 03-F.
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Page 30: Servicing
GENERAL INFORMATION +12 VSB at CX3613 +14 at CX3610 Servicing the CL chassis is the same as with other Zenith single-board chassis. If the set is dead, first check the +5 VSB at CX3841 standby and switched voltages. If the switched voltages do not appear, check the power “On”... - Page 31 CRT at a safe operating Shutdown voltage at RM6009. anode voltage and provide proper shutdown thresholds. If replacement of any of these components is deemed necessary, it is important to use original type Zenith Flyback Pulse RX3013 RX3015...
- Page 32 SERVICE ADJUSTMENTS (continued) components. After replacement is made, confirm proper Wait until the Video Menu or display appears. anode voltage using the following procedure. Connect a variable Resistor (1M ohm) in parallel Measurement of the CRT anode voltage must be performed with RX3703, and decrease slowly the resistance using a high impedance-high voltage meter, with no value until shutdown occurs.
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Page 33: If Servicing
SERVICE ADJUSTMENTS (continued) IF SERVICING ADJUSTMENT OF RGB CUTOFF Note: If the Main Module or the CRT has been VIDEO DETECTOR replaced, G2 must be readjusted before If there is no viewable picture on screen, access the adjusting the RGB Cutoff. Service Menu and check default settings for the following items: 1. -
Page 34: Switching Process
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. -
Page 35: Preliminary Setup
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. -
Page 36: Vertical-Tilt Wedge Adjustment
SERVICE ADJUSTMENTS (continued) IMPROVING CRT CORNER PURITY VERTICAL-TILT WEDGE ADJUSTMENT CRTs that display corner purity problems even after The vertical lines at 6 and 12 o’clock are converged by following the service procedures can be modified with vertically tilting the yoke and inserting a wedge at the a picture correction kit (P/N 949-00050). -
Page 37: Huntsville, Al
MODEL PARTS PARTS All CL models are module level repair only. Parts contact informa- tion is below: Voice: 1-888-3-ZENITH Fax: 1-888-6-ZENITH Mail: ZENITH NATIONAL PARTS P O Box 240007 Huntsville, AL 35824-6407 H19F34DT H25F34DT Item number Part description Item number... -
Page 38: H27F34Dt
MODEL PARTS H27F34DT H27F36DT Item number Part description Item number Part description 4810V00739A Cabinet Tray 4810V00739A Cabinet Tray 3091V00B66A Cabinet Front 3091V00B66A Cabinet Front 3809V00332A Back Cover Asse (Cabinet Rear) 3809V00332A Back Cover Asse (Cabinet Rear) 6140VC8003C Coil, Degaussing 6140VC8003C Coil, Degaussing 6400VSNX01A Speaker, Oval, 6 X 13 cm... -
Page 39: Model Parts
MODEL PARTS H24F36DT H24F34DT Item number Part description Item number Part description 4810V00739A Bracket, Jack Pack 4810V00739A Bracket, Jack Pack 3091V00B80A Cabinet Front 3091V00B80A Cabinet Front 3809V00B07A Back Cover Asse (Cabinet Rear) 3809V00B07A Back Cover Asse (Cabinet Rear) 6140VC8003B Coil, Degaussing 6140VC8003B Coil, Degaussing 5016V20002A... - Page 40 Cl Commercial 19”Exploded View DESCRIPTION H19F34DT FRONT CABINET (CABINET ASSEMBLY) 3091V00B81B SPEAKER (SPEAKER FULL RANGE) 6400VSNX01A KEYBOARD ASSEMBLY 3141VSNC61A IR LENS 3790V00712A CPT & YOKE ASSEMBLY 6335V20A03A REAR CABINET (BACK COVER ASSEMBLY) 3809V00B08B 3141VMNP44A MAIN MODULE (CHASSIS ASSEMBLY) 6710V00108A REMOTE CONTROL ENTER TIMER ALARM...
- Page 41 Cl Commercial 20”Exploded View DESCRIPTION H20F34DT FRONT CABINET (CABINET ASSEMBLY) 3091V00485A SPEAKER (SPEAKER FULL RANGE) 6400VESU01A KEYBOARD ASSEMBLY 3141VSNC61B IR LENS 3790V00715A 6335V20A03A CPT & YOKE ASSEMBLY 3809V00334A REAR CABINET (BACK COVER ASSEMBLY) MAIN MODULE (CHASSIS ASSEMBLY) 3141VMNP44A REMOTE CONTROL 6710V00108A ENTER TIMER...
- Page 42 Cl Commercial 24”Exploded View DESCRIPTION H24F34DT H24F36DT H24F39DT FRONT CABINET (CABINET ASSEMBLY) 3091V00B80A 3091V00B80A 3091V00B80A SP EAK ER (SP EAK ER F U LL R ANGE) 120-C77G 120-C77G 120-C77G 3141VSNC61C 3141VSNC61C 3141VSNC61C K EYBOAR D ASSEMBLY 3790V00711A 3790V00711A 3790V00711A WINDOW 6335V24002A 6335V24002A 6335V24002A...
- Page 43 Cl Commercial 25”Exploded View DESCRIPTION H25F34DT H25F36DT H25F39DT FRONT CABINET (CABINET ASSEMBLY) 3091V00B80A 3091V00B80A 3091V00B80A SPEAKER (SPEAKER FULL RANGE) 6400VSNX01A 6400VSNX01A 6400VSNX01A KEYBOARD ASSEMBLY 3141VSNC61C 3141VSNC61C 3141VSNC61C IR LENS 3790V00711A 3790V00711A 3790V00711A CPT & YOKE ASSEMBLY 6335V27003A 6335V27003A 6335V27003A REAR CABINET (BACK COVER ASSEMBLY) 3809V00B07A 3809V00B07A 3809V00B07A...
- Page 44 Cl Commercial 27”Exploded View DESCRIPTION H27F34DT H27F36DT H27F36S H27F39DT 3091V00B66A 3091V00B66A 3091V00B66D 3091V00B66A FRONT CABINET (CABINET ASSEMBLY) 6400VSNX01A 6401VC0134J 6401VC0134J 6400VSNX01A SPEAKER (SPEAKER FULL RANGE) 3141VSNC61C 3141VSNC61C 3141VSNC61G 3141VSNC61C KEYBOARD ASSEMBLY 6712SCA227A 6712SCA227A 6712SCA227A 6712SCA227A IR LENS (REMOTE CONTROLLER RECEIVER) CPT &...
- Page 45 Cl Commercial 32”Exploded View DESCRIPTION H32F36DT ENTER FRONT CABINET (CABINET ASSEMBLY) 3091V00B56A TIMER ALARM SPEAKER (SPEAKER FULL RANGE) 6400VSNX01A CH PREVIEW KEYBOARD ASSEMBLY 3141VSNC61C IR LENS 3790V00711A CPT & YOKE ASSEMBLY 6335V32012A 3809V00B09A REAR CABINET (BACK COVER ASSEMBLY) 3141VMNP46C MAIN MODULE (CHASSIS ASSEMBLY) 6710V00108A REMOTE CONTROL SR25 - 3828VD0171B...
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Page 46: Power Supply
Power Supply Circuit COLD DEG-CTRL D-CTL CN4T8 ICX3870 CX3853 366-043B KX3900 0ICTMNS001A LM2675N-ADJ 0.01 141-018E TP3900 DG12D1-O(M) LX3852 +11LSP LX3851 THX3902 DX3900 INPUT OUTPUT PROV 47µH 82µH 0DD414809ED TP3901 ON/OFF RX3852 150-C02F CX3855 1N4148 CX3850 CX3851 DMX3851 CX3856 RX3853 470µF 1000µF 0DRON00198A 1/2W... -
Page 47: Main Micro Circuit
Main Micro Circuit HORZ-SIZE WF21 PWR-CTRL FASTBLANK WF17 Power Control RM6002 CM6023 CM6024 CM6025 CM6033 H-SYNC H-SYNC H-SYNC 47pF 47pF 47pF 47pF RM6017 RM6009 Deg-Ctl CM6001 D-CTL 1.5K IC6000 WF18 PROV V-SYNC RM6006 HORZ-SIZE V-SYNC V-SYNC Luma (Micro) SHIELD 4814V00347A CM6002 CM6095 PROV... -
Page 48: Deflection Circuit
Deflection Circuit C3209 1.47 V 4.52 V CN2C5A +215V 470pF 500V 20.0 µS 5.0 µS +215V DX3201 RX3208 RGP15J CN3Y3 RX3210A CX3208 TX3204 1/2W 0DR150009EA 10µF 366-043D 350V 1.06 kV 58.6 V RX3210B TP3203 TP3201 1/2W 20.0 µS 5.0 µS TP3204 TP3202 +35V... -
Page 49: Video Processor Circuit
Video Processor Circuit RM1211 RM1210 CM1209 RM1212 R1213 0.01 CM1208 L1206 C1207 STEREO ONLY SIGNAL-METER 22pF 0.47 10µH CM1224 RM1224 L1208 RM1208 L1202 CM1217 C1218 120pF 10µH 100µF CM1225 100µH CM1226 RM1222 CM1203 CM1206 PROV L1201 RM1207 47pF U1204 0.01 U1201 Blue C1216... -
Page 50: Audio Processor
Audio Processor Circuit IC1400 0IMCRMN013A MSP-3425G CM1409 +8.1V XTAL_OUT CRY1400 156-A02M C1426 18.432MHz XTAL_IN RM1407 47µF CM1410 TESTEN D_CTR_I/O1 Q1402 CM1425 0TR945009AA D_CTR_I/O0 KSC945C-Y 0.01 CM1411 ADR_SEL ANA_IN- 56pF R1408 Audio In R CM1412 RM1409 STANDBYQ ANA_IN+ 56pF L1402 R1401 Audio In L I2C_CL AVSUP... -
Page 51: A/V Switch
A/V Switch Circuit WITH COMB COMB CM2473 180pF Aux3-L L2471 4.7µH RM2471 Aux3-R RM2473 4.7K CM2472 270pF Luma-Comb (Y-IN) R2911 R2909 CV-COMB Chroma-Comb (C-IN) CAMPORT-SENSE Luma Rear (Y-IN) R2930 Y/C-SENSE C2474 CM2471 LUMA-COMB 2.2K R2912 R2910 10µF 100pF Chroma Rear (C-IN) RM2472 L2471 CM2473... -
Page 52: Mpi Card Circuit
MPI Card Circuit R4995M 11E1 R4996 +11V 58-661 Q4906 121-1310A +11V R4993 MPI_DATA_IN C4967 R4994M R4997 220pF MPI_DATA_OUT 078-3481-01 R4992 Q4905 121-1310A C4966 R4991 220pF IR_DATA 4.7K C4946 100uF This schematic refers to R4990 CL Chassis models 4.7K H19F34DT R4984 H20F34DT R4985M R4987... -
Page 53: Video Output
Video Output Circuit WF43 1.73V L5100 20 US 120uH C5101 RX5104 20-03907-25A 350V R5103 150K 1/2W 128.2 BLUE R5101M Q5101 0TR322900AA L5102 WF45 R5102M 125-022K C5103M 4.60V 470pF R5105 R5105M 20 uS C5102M 1/2W PROV R5106M 220PF BLUE RX5122 R5123 RX5111 1/2W DAG1... -
Page 54: Edge Card Circuit
Edge Card Circuit CON1 1E11 P078-3571 P078-3571 +11V 1VGA10 PS_GND 58-542-10 +11V MPI_DATA_IN PS_GND BUFFERED_MPI_DATA_OUT BUFFERED_MPI_DIN SPI_DATA_OUT MPI_DOUT SPI_DATA_OUT SPI_DATA_IN SPI_DATA_IN SPI_CLOCK SPI_CLOCK DATA_GND DATA_GND +5VBA +5VBA IR_DATA_OUT BUFFERED_IR_DATA_OUT CLONESENSE/PTY_SELECT CON2 P078-3571 P078-3571 2VGA8 BUFFERED_IR_DATA_OUT +5VBA 58-593-10 This schematic refers to RED_VIDEO_IN CL Chassis models CLONESENSE/PTY_SELECT... -
Page 55: Audio Amplifier
Audio Amplifier Circuit +14V TP800 C802 CM801 1000µF IC800 0.01 4921V00N11Q 0ISA426100A C813 4920V00010 CN9S4 100µF TP801 TP802 LA4261 366-921C C815 RM813 470µF C814 C811 RM811 AUDIO-AMP-RIGHT CM812 10µF 3.9K RM812 R814 2200pF 1.8K C823 RM823 C821 TP1404 TP804 RM821 AUDIO-AMP-LEFT Audio Out R 100µF... -
Page 56: Comb Filter
Comb Filter Circuit W2450 COMB FILTER MODELS ONLY L2402 L2403 10µH 100µH CM2411 C2412 C2410 0.01 47µF 47µF RM2412 WITH Q2402 COMB COMB PROV JM2453 RM2414 L2407 Q2403 RM2416 RM2415 0TR945009AA RM2417 KSC945C-Y 971-16 IC2400 RM2413 RM2407 CM2422 CM2423 PROV 0ICTMTO004A PROV PROV... -
Page 57: Block Diagram
Block Diagram VIDEO MCU V Vcc 8V DIRECT OUT 1.2Vp-p Vcc 5V EXT AUDIO IN 8.7V RESET to MCU from MCU INTER LIMITER CARRIER DELAY ADJ VIF VCO ADJ VIF Vcc VIF GND 5.7V 8.7V RESET 5.7Vreg AUDIO RF AGC LIMITER IF AGC RF AGC... - Page 58 PCB Layout Top TO KEYBOARD COLD COLD COLD EDGE CARD _A_V OCP/FB _A_V TO LED RX3410 BOARD _A_V ICX3815 DX3813 COLD COLD C1426 VIDEO OUTPUT VIDEO OUTPUT CN4B8 R830 E10 E11 6870VM7786F 26-JUNE-2003 CHECK TO SPEAKERS CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR ALL SYMBOLS WITH “M”...
- Page 59 PCB Bottom Layout COLD QX3711 RX3705 RX3706 ZDX3710 RX3851 » L6005 FX3400 RX3400 RX3715 RM6080 SPGND C6035 JM6033 RM6075 RX3704 LX3852 CM6061 CM6009 ICX3870 RX3703 CM6003 CN2K6 RX3702 LX3851 RM6058 L6001 » RM6053 C6098 RM6020 RM6031 RM6034 CX3851 DMX3851 CX3841 CX3852 RX3501 ICX3840...
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Page 60: Pcb Top Layout
PCB Top Layout C4965 W0166 W0160 C5111 C4967 CON1 W0161 W0163 W0162 Q4906 11E1 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR ALL SYMBOLS WITH “M” ON THE DESIGNATOR SR25-3828VD0171B 6-15 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT. -
Page 61: Pcb Bottom Layout
PCB Bottom Layout R4989M R4994M CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR ALL SYMBOLS WITH “M” ON THE DESIGNATOR SR25-3828VD0171B 6-16 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT. - Page 62 z e n i t h...