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Operating Manual
SERVICE MANUAL
Product Type:
Chassis:
Manual Series: PV154
Manual Part #: 923-03506
Model Line:
Product Year:
Printed in U.S.A.
Digital Rear Projection
ZP26/28
E
2002
CONTENTS
General Info ................................................. 1
Service Menu ................................................ 2
Servicing ..................................................... 3
Part List ...................................................... 4
Diagrams / PCB Layouts .................................. 5
Schematics ................................................... 6
Published August 2002
by Technical Publications
Zenith Electronics Corporation
201 James Record Road
Huntsville, Alabama 35824-1513
Copyright
2002 by Zenith Electronics Corporation
Model Series:
R50V26
R56W28
R60V26
R65W28
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Table of Contents
Related Manuals for Zenith R50V26
Summary of Contents for Zenith R50V26
- Page 1 Servicing ............. 3 Part List ............4 Diagrams / PCB Layouts ........5 Schematics ........... 6 Published August 2002 by Technical Publications Zenith Electronics Corporation 201 James Record Road Huntsville, Alabama 35824-1513 Copyright 2002 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 8. Minimize bodily motions when handling unpackaged replace ment tant to use original type Zenith replacement components. After ES devices. (Otherwise, seemingly harmless motion, such as the brush-...
- Page 4 PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS HOLD-DOWN CIRCUIT INFORMATION NORMAL CONDITION X-RAY PROTECTION In normal condition, the DC voltage at point is ap- Check the X-Ray protection circuit using the following proximately 4.88V through pin 1 of P1407 (HV Block). steps.
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Page 5: Table Of Contents
TABLE OF CONTENTS SECTION 1 ....OVERVIEW SERVICE ADJUSTMENTS ........3-16 ZP-25 CHASSIS ADJUSTMENT ORDER ..... 3-16 OVERVIEW ............. 1-1 CHASSIS PRE-HEAT RUN ADJUSTMENTS ..3-17 ON SCREEN DISPLAY ........1-3 CHASSIS CUT-OFF (SCREENS) ADJUSTMENT ..3-17 REMOTE BUTTON DESCRIPTIONS ..... 1-5 CHASSIS PRE-FOCUS ADJUSTMENT .... -
Page 7: Section 1
8,000 points on the screen are adjusted, IMPROVED PICTURE for perfect center to edge focus of the image. Zenith’s 26 and 28 series projection televisions feature a .52mm screen pitch, improved image scaling, and new 7" DIGITAL FOCUS ARRAY (V26 MODELS) CRTs yielding sharper images and finer detail. - Page 8 Auto Flesh Tone, CABINET Wide Band Video Amp Dimensions and weight: AUDIO R50V26: 43.5"w x 52"h x 23.5"d @177Lbs Front Surround (SRS) ........Yes R60V26: 51.5"w x 60.5"h x 26.5"d @226Lbs Mono/Stereo/MTS/SAP ......MTS/SAP Finish ..........Light Silver Bass/Treble/Balance (Tone Control) ....Yes Screen Protector ......
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Page 9: On Screen Display
OVERVIEW SPECIAL FEATURES APPROVALS HD Monitor Digital DisplayDisplays Digital Signals at UL, C-UL, NOM ........UL, C-UL 540p or 1080i (User Selects) UPC Code ......56”:04464200622 8 Tri-lingual Menus .... English, Spanish, French 65”:04464200612 9 Other features .. Icon Menus, Source ID, Channel La- SERVICE/LIMITED WARRANTY bels, Parental Control with V- Service Support Level ..... - Page 10 OVERVIEW FRONT CONNECTIONS power menu source S-Video Video L/Mono R - volume + - channel + select exit REAR CONNECTIONS Inputs 3 and 4 Y, P P , and Audio L - R Component Video Some top-of-the-line DVD players use what is called “component video,”...
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Page 11: Remote Button Descriptions
For other brands, vice and press the POWER key. The device should or if your remote fails to control your Zenith products, turn off. If not, try the other 3-number codes listed. you’ll have to program the remote. -
Page 12: Remote Brand Codes
TV/VCR Combination Codes Funai TV/VCR..154 Zenith TV/VCR . . . 150 152 153 154 Zenith ..101 121 149 152 Goldstar TV/VCR . . 153 172 Adventura TV/VCR . 154 Symphonic TV/VCR 154 Daewoo TV/VCR . -
Page 13: Remote Codes
Mitsubishi ..927 Sears ..936 Zenith ..460 461 498 901 Fisher ..438 933 951 Nakamichi . -
Page 14: Operating Mode Key Functions
REMOTE CONTROL OPERATING MODE KEY FUNCTIONS KEY NAME TV Mode VCR Mode Cable Mode DVD Mode HD/STB Mode source TV Sources TV Sources TV Sources TV Sources TV Sources light Lights Keys 5 Seconds Lights Keys 5 Sec Lights Keys 5 Sec Lights Keys 5 Sec Lights Keys 5 Sec power... -
Page 15: User Menus
USER MENUS REMOTE CONTROL KEY NAME TV Mode VCR Mode Cable Mode DVD Mode HD/STB Mode fav ch (Channel) TV Favorite Channels VCR Channel Map Cable Page Down quit TV Menu Quit VCR Quit Cable Quit DVD Resume HD/STB Quit up arrow TV Select Up VCR Select Up... -
Page 16: Setup
USER MENUS USER MENUS If certain CATV channels are not received clearly in CATV1 mode, set the source to CATV2 mode. SETUP CHANNEL ADD/DEL (DELETE) TRILINGUAL MENUS Customize your channel selection list: Add Channels Press MENU to access the Setup menu. Use the DOWN not found by Scan (Channel Search), Delete channels arrow to choose Trilingual. -
Page 17: Special
USER MENUS CLOCK SET Use the RIGHT arrow button to access the Picture formats Menu. Choose and set the options based on Use the UP/DOWN arrow to choose Clock Set. Use the your equipment’s signal requirements for high- RIGHT arrow button to choose first the time option definition or standard NTSC sources. - Page 18 USER MENUS Use the UP/DOWN arrows to choose an option. If you Note: Use * for blank spaces. chose Ch Labels, press the RIGHT arrow button to access To delete a Source ID, select Reset, then press the the preset channel label list and scroll through this SELECT button.
- Page 19 USER MENUS Notes • Favorite Channels are only available on ANT 1 source. Press select to set • If Parental Control Ratings are locked, it will disable multiple channel insets (including the Favorite SPECIAL Channels POP-3 insets). Parental Control • When POP-3 favorite channel is on, Closed Caption * * * * Enter Secret Code...
- Page 20 USER MENUS SETUP SECURITY TIMER Use the Security Timer to program your TV to turn on, Press MENU and then the RIGHT/LEFT arrow button tune to the preset channel, and then turn off to access the Special Menu. Press the UP/DOWN arrow automatically at the times specified.
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Page 21: Video Menu
USER MENUS CAPTIONS Press MENU and the RIGHT/LEFT arrow button to access the Special Menu. Use the UP/DOWN arrow to choose Captions. Press the RIGHT arrow button to activate SETUP SPECIAL VIDEO AUDIO THEA TER Captions option. Use the LEFT/RIGHT arrow to choose Channel Labels Display Off, On, or Auto option. -
Page 22: Audio Menu
USER MENUS RESET PICTURE SETTINGS Use the UP/DOWN arrow to choose Reset (Reset restores Press MENU and use the RIGHT/LEFT arrow button to the levels to their original settings). Press SELECT to access the Audio Menu. Use the UP/DOWN arrow to confirm your choice. -
Page 23: Theater Menu
USER MENUS THEATER MENU POP-3 SETUP SPECIAL VIDEO AUDIO THEATER Theater Modes Surround Movies Music Sports Reset Menu To Menu Bar To Exit Quit Main Picture POP-3 Channels POP-3 (Picture-On-Picture) shows multiple channels on THEATER MODES the screen. With the TV on and Ant 1 source shown on- Press MENU and then the RIGHT/LEFT arrow button to screen, press MULTI on the remote to turn on the POP-3 access the Theater menu. - Page 24 - 1-18 -...
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Page 25: Section 3
SECTION 3 CIRCUIT DESCRIPTIONS CIRCUIT DESCRIPTIONS · Shorted SW +2.5V (IC03) on Signal PWB through Pro- tect 1 to (D940) on Sub Power Supply PWB POWER ON AND OFF · Shorted SW +3.3V (IC04) on Signal PWB through Pro- The power supply runs all the time when AC is applied. tect 1 to (D940) on Sub Power Supply PWB The use of the power supply creating Stand-By Voltage ·... -
Page 26: Power Supply Shutdown Circuit
CIRCUIT DESCRIPTIONS · Shorted SW +5V (IC02) on Signal PWB through PRO- ohm, however it could be any low ohm value. When TECT 1 to (D940) on Sub Power Supply PWB the current demand increases, the voltage drop across the resistor increases. If the voltage drop is sufficient NOTE: PROTECT 1 will not go below 2.2V even if the 5V or to reduce the voltage on the base of the transistor, the 3.3V lines are open. -
Page 27: Shut Down Circuit Descriptions
CIRCUIT DESCRIPTIONS HOT GROUND SIDE SHUT DOWN SENSING CIRCUITS 10. Deflection B+ Too High. (DP17, RP26 and RP27). (INTERNAL TO IP01) 11. SW +9V Voltage Too High Detection. (DP29 and LATCHED SHUT DOWN MONITORS DP30) (AC must be removed to recover) 12. - Page 28 CIRCUIT DESCRIPTIONS sistor turns Off, generating a High on its collec- called PROTECT and Shut Down occurs as described tor. This output High is routed through D705 to above. pin (1) of Connector PQD2 called PROTECT and Shut 9. Side Pincushion failure generating a High. (D702, Down occurs as described above.
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Page 29: Sub Power Supply Visual Led
CIRCUIT DESCRIPTIONS NOTE: If the 5.5V or the 3.3V regulators OPEN, the set connector pin 11, through the coil LC03 to pin 19 of will not go into shut down, they must have a short to IC01 the Rainforest IC. When this voltage is applied to produce a shut down input on PROTECT 1. -
Page 30: B+ Generation For Sub Power Supply
CIRCUIT DESCRIPTIONS B+ GENERATION FOR SUB POWER SUPPLY DRIVER LED USAGE The Visual LEDs are useful in Trouble Shooting. Without Vcc for the Driver IC is first generated by the AC input. removing the back cover, some diagnostics can be This voltage is called Start Up Voltage. -
Page 31: Defelction General Information
CIRCUIT DESCRIPTIONS CP05 and takes over as Run Voltage (16.3V) at pin 4 V BLK of IP01. The Vertical Blanking pulse is generated from the Vertical output IC, I601 pin (11). This pulse normally REGULATION operates at 21V P/P. Figure 2 is a simplified diagram of the main Power Supply used in some Projection Television chassis. - Page 32 CIRCUIT DESCRIPTIONS 30Kv HV This is the Dynamic Focus output voltage. · +28V, -26V and RETRACE PULSE +28V and -28V: The 30,000 volts DC supplied to the CRTs anodes. +28V and the -28V are routed to the Deflection trans- TO DEFLECTION YOKES former T752.
- Page 33 CIRCUIT DESCRIPTIONS A sample of the High Voltage is output from the Flyback ing sweep loss. transformer TH01 pin (12). This voltage is sent to pin CONCERNING QN02 (9) of the High Voltage Driver IC IH01. This voltage is There are several factors that can affect the operation compared to the reference voltage available at pin (12).
- Page 34 CIRCUIT DESCRIPTIONS • HD FOCUS SENSORS AND INTERFACE The DC offset voltage is adjusted by several things. • MICROPROCESSOR When a complete Digital Convergence procedure has been performed and the adjustment information stored in • RAINFOREST IC (Video Processor). memory by pressing the MULTI button twice, it is •...
- Page 35 CIRCUIT DESCRIPTIONS the BUSY line. As long as the BUSY line is active, the zontal Deflection circuit or the Vertical Deflection cir- Main Microprocessor ignores the IR signal. cuit. The Convergence Yoke assembly manipulates the Beam in accordance with the correction waveforms pro- ON SCREEN DISPLAY PATH: duced by the DCU.
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Page 36: Main Microprocessor
CIRCUIT DESCRIPTIONS The ABL voltage is determined by the current draw The Microprocessor communicates with the following through the Flyback transformer. As the picture ICs: brightness becomes brighter or increases, the demand ON THE SIGNAL PWB for replacement of the High Voltage being consumed is Main Tuner U501 greater. -
Page 37: Dac1 I006
CIRCUIT DESCRIPTIONS in the EEPROM, such as the window for Closed Caption DAC1 I006 Pin Descriptions detection. DESC FUNCTION Data and Clock lines are SDA1 from pin (2) of the Receives Busy from DCU stopping Microprocessor Microprocessor to pin (5) of the EEPROM and SCL2 1 Busy from responding to Remote commands. -
Page 38: Main Video Chroma I501 (Preparation Ic)
CRTs. Some of the emphasis different requests. circuits are controlled by the customer’s menu and some of them are controlled by WEAK SIGNAL in Zenith Mod- els which is AI, (Artificial Intelligence). 3-14 PV154 - 923-03506... -
Page 39: Srs Audio
CIRCUIT DESCRIPTIONS The Microprocessor uses a combination of I C Bus com- munication and the Serial Data, Clock and Load lines for control. The I C communication scheme only requires 2 lines for control. These lines are called SDA and SCL. Serial Data and Serial Clock respectively. -
Page 40: Service Adjustments
SERVICE ADJUSTMENTS SERVICE ADJUSTMENTS ZP-25 CHASSIS ADJUSTMENT ORDER Always follow the sequence below. Order Adjustment Item Screen Format Signal DCU Data Pre HEAT (30 Minutes) Normal Mode NTSC Cut Off Normal Mode NTSC Pre Focus Lens and Static Normal Mode NTSC DCU Phase Data Setting Normal Mode... -
Page 41: Service Menu
SERVICE ADJUSTMENTS CHASSIS PRE-HEAT RUN ADJUSTMENTS 3. Repeat for Blue and Green. PRESET EACH ADJUSTMENT VR TO THE CONDITION DCU CROSSHATCH PHASE ADJUSTMENT SHOWN: BEFORE PRE HEAT RUN. ADJUSTMENT PREPARATION: 1. Red and Green Drive VR on the CRT PWB. This is ·... -
Page 42: Servicing
SERVICE ADJUSTMENTS 6. Select Item H POSI and adjust the data so that BLUE: the center of Video matches the location of the 4. Remove cover or PTS short from BLUE and cover Digital Crosshatch pattern noted in step {4}. the RED CRT. -
Page 43: Vertical Size Adjustment
SERVICE ADJUSTMENTS Left of Center and Blue is offset Right of center. Please ALTERNATE METHOD: use the following information to accurately offset Red Adj Vert Size until the size matches the chart below. and Blue from center. Also see Overlay Dimensions for Scrn Size 56”... -
Page 44: Lens Focus Adjustment
SERVICE ADJUSTMENTS low.) ADJUSTMENT PROCEDURE 8. Also adjust the Red and Blue CRT beam shapes ac- 1. Receive any NTSC crosshatch signal. cording to the steps (1) to (3). 2. Turn the B FOCUS VR fully clockwise. 9. After the adjustment is completed, return R, G and 3. -
Page 45: Chassis Horizontal Phase (Fine)
SERVICE ADJUSTMENTS OK, repeat steps 5 through 12. NOTE: This instruction should be applied when a new DCU is being replaced. 12. Press the MENU key on the remote to Exit Service Menu. Remember: When adjusting the Screen con- NOTE: This instruction shows how to set up the pattern position for Intellisense. -
Page 46: Digital Convergence Alignment
SERVICE ADJUSTMENTS NORMAL MODE: 0 1 2 3 4 5 6 7 ZP25 Factory Reset Condition RH X 02 X FE X 02 X 04 ITEM INITIAL CONDITION FUNCTION RV X 00 X 00 X 02 X 00 NTSC Channel (Main, Sub) 03 CH GH X 00 X FE X 00 X 04 SOURCE MODE Antenna A... -
Page 47: Section 4
MIRROR MOUNT LEFT Voice: 1-888-3-ZENITH MIRROR MOUNT UPPER Fax: 1-888-6-ZENITH 992-10047 MIRROR GLASS BACK UPPER WOOD Mail: ZENITH NATIONAL PARTS 874-10050 SCREEN ASS. WITH PROTECTOR P O Box 240007 PART OF 8 ESCUTCHEON UPPER Huntsville, AL 35824-6407 814-10257 ESCUTCHEON ASS. - Page 48 MODEL PARTS R60V26 R65W28 PART # DESCRIPTION PART # DESCRIPTION MIRROR MOUNT RIGHT MIRROR MOUNT RIGHT MIRROR MOUNT LEFT MIRROR MOUNT LEFT MIRROR MOUNT UPPER MIRROR MOUNT UPPER 992-10036 MIRROR 992-10046 MIRROR GLASS CABINET UPPER REAR BACK UPPER WOOD 874-10052 SCREEN ASS.
- Page 51 SECTION 5 ZP26 Exploded View A-R60V26 B-R50B26 PART # DESCRIPTION MIRROR MOUNT RIGHT MIRROR MOUNT LEFT MIRROR MOUNT UPPER 992-10036 MIRROR 992-10038 MIRROR CABINET UPPER REAR 874-10052 SCREEN ASS. WITH PROTECTOR 874-10046 SCREEN ASS. WITH PROTECTOR PART OF 8 ESCUTCHEON UPPER 833-10024 ESCUTCHEON ASSY.
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Page 52: Zp26/28 Exploded View
ZP28 Exploded View A-R56W28 B-R65W28 PART # DESCRIPTION MIRROR MOUNT RIGHT MIRROR MOUNT LEFT MIRROR MOUNT UPPER 992-10046 MIRROR GLASS 992-10047 MIRROR GLASS BACK UPPER WOOD 874-10051 SCREEN ASS. WITH PROTECTOR 874-10050 SCREEN ASS. WITH PROTECTOR PART OF 8 ESCUTCHEON UPPER 814-10235 ESCUTCHEON ASS. -
Page 53: 50" Wiring Diagram - Back
PDK4 FOCUS ANODE(R) ANODE(G) ANODE(B) LX-ZCAT2032-0930 TUNER 1 TUNER 2 E002 TERMINAL P.W.B. PDF1 PDKP PQD1 PDF2 POWER CORD ANTENNA TERMINAL BOARD. CONVERGENCE P.W.B. THIS DRAWING APPLIES TO R50V26 (ZP15 CHASS.). BACK SIDE PV154 - 923-03506 ZP26/28 - EXPLODED VIEWS... -
Page 54: 60" Wiring Diagram - Back
60” Wiring Diagram - Back Refer to the figure below about the assembly if FOCUS PACK leads. SCREEN PDF2 FOCUS PR make LEAD CLAMPER FOCUS PACK double loop N008 LEAD CLAMPER MAG-FERRITE CORE 133 PDF2,PSF N008 FOCUS(R,G,B) UFPK E001 SCREEN(R,G,B) PAQ1,PL,PQD2 PQS1,PDC1 PQS1... -
Page 55: 50/60" Wiring Diagram - Front
CPT PWB SHIELD NCPTG NCPTB E003 N005 N005 from SIGNAL P.W.B. MGZ-E1630MRF-CLAMP PURSE LOCK O8 PURSE LOCK O8 N005 PURSE LOCK O8 THIS DRAWING APPLIES TO R50V26 & R60V26 (ZP15 CHASS.) FRONT SIDE PV154 - 923-03506 ZP26/28 - EXPLODED VIEWS... -
Page 56: 56" Wiring Diagram - Back
56” Wiring Diagram - Back Refer to the figure below about the assembly if FOCUS PACK leads. SCREEN PDF2 FOCUS from SENSOR P.W.B. PR make LEAD CLAMPER FOCUS PACK double loop LEAD CLAMPER PDF2,PSF N008 MAG-FERRITE CORE 133 PDC1 make a loop N008 FOCUS(R,G,B) UFPK... -
Page 57: 65" Wiring Diagram - Back
65” Wiring Diagram - Back Refer to the figure below about the assembly if FOCUS PACK leads. SCREEN PDF2 FOCUS from SENSOR P.W.B. PR make LEAD CLAMPER FOCUS PACK double loop N008 LEAD CLAMPER MAG-FERRITE CORE 133 PDF2,PSF FOCUS(R,G,B) N008 UFPK E001 PDS1... -
Page 58: 56/65" Wiring Diagram - Front
56/65” Wiring Diagram - Front EAS1 EAS7 EAS3 EAS3 / EAS5 PS1 PDS1 EAS5 SENSOR P.W.B. PFS PFT from TERMINAL P.W.B. from SIGNAL P.W.B. CONTROL CONTROL P.W.B. SUB P.W.B. LEAD CLAMPER VM SUB P.W.B. N009 PVSB PVMS from SIGNAL P.W.B. from SIGNAL P.W.B. -
Page 59: Convergence Circuit 1/2
SECTION 6 Convergence Circuit 1/2 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 1 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 60: Convergence Circuit 2/2
Convergence Circuit 2/2 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 2 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 61: Magic Focus Circuit
Magic Focus Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 3 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 62: Deflection Power Supply Circuit
Deflection Power Supply Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 4 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 63: Deflection Circuit
Deflection Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 5 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 64: Power Supply Circuit
Power Supply Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 6 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 65: Signal Circuit 1/4
Signal Circuit 1/4 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 7 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 66: Signal Circuit 2/4
Signal Circuit 2/4 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 8 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 67: Signal Circuit 3/4
Signal Circuit 3/4 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 9 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 68: Signal Circuit 4/4
Signal Circuit 4/4 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL 6-10 NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 10 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 69: Srs Circuit
SRS Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL 6-11 NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 11 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS. -
Page 70: Velocity Modulator Circuit
Velocity Modulator Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL 6-12 NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC, ZP26/28 SHEET 12 REPLACE ONLY WITH PART NUMBERS SPECIFIED. CHANNEL 5, AND NSTC COLOR BARS.