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19R-M100
19R-M100S

IMPORTANT SERVICE SAFETY PRECAUTION

Ë

Service work should be performed only by qualified service technicians who are thoroughly
familiar with all safety checks and the servicing guidelines which follow:

4A 125V

SERVICING OF HIGH VOLTAGE SYSTEM
AND PICTURE TUBE

When servicing the high voltage system,
remove the static charge by connecting a
10k ohm resistor in series with an insulated
wire (such as a test probe) between the pic-
ture tube ground and the anode lead. (AC
line cord should be disconnected from AC
outlet.)

1. Picture tube in this receiver employs integral

implosion protection.

2. Replace with tube of the same type number for

continued safety.

3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing

shatterproof goggles and after discharging the high
voltage anode completely.

X-RADIATION AND HIGH VOLTAGE LIMITS

1. Be sure all service personnel are aware of the

procedures and instructions covering X-radiation.
The only potential source of X-ray in current solid
state TV receivers is the picture tube. However, the
picture tube does not emit measurable X-Ray
radiation, if the high voltage is as specified in the
"High Voltage Check" instructions.
It is only when high voltage is excessive that X-
radiation is capable of penetrating the shell of the
picture tube including the lead in the glass material.
The important precaution is to keep the high voltage
below the maximum level specified.

2. It is essential that servicemen have available at all

times an accurate high voltage meter.
The calibration of this meter should be checked
periodically.

3. High voltage should always be kept at the rated value

-no higher. Operation at higher voltages may cause
a failure of the picture tube or high voltage circuitry
and;also, under certain conditions, may produce
radiation in exceeding of desirable levels.

4. When the high voltage regulator is operating properly

there is no possibility of an X-radiation problem.
Every time a color chassis is serviced, the brightness
should be tested while monitoring the high voltage
with a meter to be certain that the high voltage does
not exceed the specified value and that it is regulating
correctly.

5. Do not use a picture tube other than that specified

or make unrecommended circuit modifications to the
high voltage circuitry.

6. When troubleshooting and taking test measurements

on a receiver with excessive high voltage, avoid being
unnecessarily close to the receiver.
Do not operate the receiver longer than is necessary
to locate the cause of excessive voltage.

WARNING

1. For continued safety, no modification of any circuit

should be attempted.

2. Disconnect AC power before servicing.
3. Semiconductor heat sinks are potential shock

hazards when the chassis is operating.

4. The chassis in this receiver has two ground systems

which are separated by insulating material. The non-
isolated (hot) ground system is for the B+ voltage
regulator circuit and the horizontal output circuit. The
isolated ground system is for the low B+ DC voltages
and the secondary circuit of the high voltage
transformer.
To prevent electrical shock use an isolation
transformer between the line cord and power
receptacle, when servicing this chassis.

CAUTION: FOR CONTINUED
PROTECTION AGAINST A
RISK OF FIRE, REPLACE
ONLY WITH SAME TYPE 4A-
125V FUSE.

Содержание 19R-M100

Страница 1: ... service only The contents are subject to change without notice CONTENTS SERVICE MANUAL POWER INPUT AC 120 V 60 Hz POWER RATING 69 W PICTURE SIZE 1 194cm2 185sq inch CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS Hi Bi Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency 45 75 MHz Sound IF Carrier Frequency 41 25 MHz Color Sub Carrier Frequency 42 17 MHz Nominal AUDI...

Страница 2: ...tion of this meter should be checked periodically 3 High voltage should always be kept at the rated value no higher Operation at higher voltages may cause a failure of the picture tube or high voltage circuitry and also under certain conditions may produce radiation in exceeding of desirable levels 4 When the high voltage regulator is operating properly there is no possibility of an X radiation pr...

Страница 3: ...city networks mechanical insulators and etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground s...

Страница 4: ...lays receiving channel when in Closed Caption mode Basic Remote Control Functions Front Panel CHANNEL UP DOWN Selects next higher channel Selects next lower channel Press both at the same time to access the MAIN MENU screen VOLUME UP DOWN Increases sound Decreases sound POWER Press On Press again Off REMOTE KEYPAD Accesses any channel from keypad FLASHBACK Returns to previous channel VOLUME UP DOW...

Страница 5: ...e operation of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode ...

Страница 6: ... normal mode Use the reset function in the video adjustment menu to ensure customer control are in their proper reset position 2 Service number selection In the service mode you will see the window screen as window 1 There are 3 adjustment categories 2DEF 3SIGNAL 4FIX VALUE as show in Figure A Press CH UP DOWN button for selection and enter by VOL UP or VOL DOWN Press CH UP DOWN button to select t...

Страница 7: ...4 03 F26 H BLK L 00 07 04 00 SERVICE POSITION ADJUST ITEM DATA RANGE INITIAL VALUE Hex Table A Below are the ranges and initial values for each adjustment and in each categories DEF D01 H PHASE 00 1F 0C D02 V SIZE 00 7F 40 D03 V POSITION 00 3F 20 Must be 20 D04 CC POSITION 00 FF 1A D05 V LINEARITY 00 1F 10 Must be 18 D06 V S CORRECTION 00 1F 10 Must be 0C SERVICE POSITION ADJUST ITEM DATA RANGE IN...

Страница 8: ...tically write the above initial values into IC2102 IC2101 Table D The adjustment is needed to compensate for characteristics of parts including IC201 Holding down both the Vol up Ch down buttons on the TV set in the service mode for more than 2 seconds will automatically write the above initial values into IC2102 IC2101 X X ADJUSTMENT NECESSARY UNNECESSARY PART REPLACED NOTES R2101 R2102 R2103 R21...

Страница 9: ...nnel 2 Enter the service mode signal category and select the service adjustment S01 3 Set the data value to point where no noise or beat appears 4 Select another channel to confirm that no noise or beat appears Note You have to exit the service mode first to select another channel Video Level TV Det Video Level Adjustment 1 Receive a good local channel 2 Enter the service mode signal category and ...

Страница 10: ...e a good local channel 2 Enter the service mode DEF category and select the adjustment D01 3 Adjust D01 data value to center the picture Vertical Phase Adjustment 1 Receive a good local channel 2 Enter the service mode DEF category and select the adjustment D03 3 Adjust D03 bus data to get the most acceptable vertical position Note The step range is 20 032 10 steps Caption Position Adjustment Hori...

Страница 11: ...11 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT Ë19R M100 Ë19R M100S ...

Страница 12: ...12 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM ...

Страница 13: ... All voltages measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measured from point indicated to...

Страница 14: ...CEN1 C211 VCKYCY1HB102K 1000p C301 VCCCCY1HH470J 47p VCCCCY1HH220J 22p C304 VCCCCY1HH470J 47p VCCCCY1HH220J 22p C802 VCEA0A1CW106M 10 16V R209 VRS CY1JF123J 12k VRS CY1JF000J 0 R302 VRS CY1JF332J 3 3k VRS CY1JF152J 1 5k R413 VRS CY1JF152J 1 5k VRS CY1JF222J 2 2K NOTE MODEL 19R M100 SCHEMATIC DIAGRAM MAIN Unit ...

Страница 15: ...EN1 C211 VCKYCY1HB102K 1000p C301 VCCCCY1HH470J 47p VCCCCY1HH220J 22p C304 VCCCCY1HH470J 47p VCCCCY1HH220J 22p C802 VCEA0A1CW106M 10 16V R209 VRS CY1JF123J 12k VRS CY1JF000J 0 R302 VRS CY1JF332J 3 3k VRS CY1JF152J 1 5k R413 VRS CY1JF152J 1 5k VRS CY1JF222J 2 2K NOTE MODELS 19R M100S SCHEMATIC DIAGRAM MAIN Unit ...

Страница 16: ...18 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H MODEL 19R M100 SCHEMATIC DIAGRAM CRT Unit ...

Страница 17: ...19 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H MODEL 19R M100S SCHEMATIC DIAGRAM CRT Unit ...

Страница 18: ...20 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side PRINTED WIRING BOARD ASSEMBLIES ...

Страница 19: ...21 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side ...

Страница 20: ...22 19R M100 19R M100S 6 5 4 3 2 1 A B C D E F G H PWB B CRT Unit Chip Parts Side PWB B CRT Unit Wiring Side ...

Страница 21: ...gaussing Coil AQ or RCiLG0014MEZZ or RCiLG0099PEZZ LHLDW0102GJKZ X Holder AC LHLDW1007MEKZ X Holder AD PMAGF3046CEZZ R Purity Magnet AF QEARC2016PEZZ J Grounding Strap AG PRINTED WIRING BOARD ASSEMBLIES NOT REPLACEMENT ITEM 19R M100 PWB A DUNTKA358WEW0 MAIN Unit PWB B DUNTKA359WEW0 CRT Unit 19R M100S PWB A DUNTKA358WEW1 MAIN Unit PWB B DUNTKA359WEW1 CRT Unit PWB A DUNTKA358WEW0 19R M100 PWB A DUNT...

Страница 22: ...131CEZZ J Diode AC å VA701 RH VX0048CEZZ J Varistor AE or RH VX0019CEZZ PACKAGED CIRCUIT å PR701 RMPTP0026CEZZ J Packaged Circuit AF X801 RCRSB0001PEZZ J Crystal AL or RCRSB0205CEZZ FILTER AND COILS CF2040 RFiLA0099CEZZ J Ceramic Filter AE or RFiLC0121GEZZ L201 VP XF1R2K0000 J Peaking 1 2µH AB L202 VP XF1R2K0000 J Peaking 1 2µH AB L203 VP XF220K0000 J Peaking 22µH AB L204 RCiLi0632CEZZ J IF Coil A...

Страница 23: ...0 16V EL AD å C731 VCEA0A1EW107M J 100 25V EL AC C732 VCKYPA1HF103Z J 0 01 50V Ceramic AA C735 VCCCPA1HH680J J 68p 50V Ceramic AA C737 VCEA0A1EW226M J 22 25V EL AB C738 RC KZ0040CEZZ J 820p 2kV Ceramic AD or RC KZ0340CEZZ C739 VCEA0A1HW104M J 0 1 50V EL AB C740 VCEA0A1EW476M J 47 25V EL AB C743 RC KZ0338CEZZ J 560p 2kV Ceramic AD C750 VCKYPA1HF103Z J 0 01 50V Ceramic AA C752 VCEA0A1CW476M J 47 16V...

Страница 24: ... Ox AA å R654 VRD RA2BE154J J 150k 1 8W Carbon AA å R655 VRS CY1JF103J J 10k 1 16W M Ox AA å R659 VRN RL3AB1R0J X 1 0 1W M Film AE 19R M100S å R659 VRN RL3AB3R3J X 3 3 1W M Film AE 19R M100 CRT A48JLL40X or VRN VV3AB2R2J J 2 2 1W M Film AA 19R M100 CRT A48KZL70X å R661 VRN RL3ABR47J X 0 47 1W M Film AE å R662 VRD RA2BE102G J 1 0k 1 8W Carbon AB å R702 RR DZ0049CEZZ J 3 9 1 2W Carbon AB å R703 VRW ...

Страница 25: ... J 56k 1 16W M Ox AA R2507 VRS CY1JF823J J 82k 1 16W M Ox AA R2508 VRS CY1JF153J J 15k 1 16W M Ox AA R2509 VRS CY1JF272J J 2 7k 1 16W M Ox AA R2601 VRD RA2BE331J J 330 1 8W Carbon AA SWITCHES S2501 QSW K0202PEZZ J Power AC or QSW K0079GEZZ S2502 QSW K0202PEZZ J VOL Down AC or QSW K0079GEZZ S2503 QSW K0202PEZZ J VOL Up AC or QSW K0079GEZZ S2504 QSW K0202PEZZ J CH Down AC or QSW K0079GEZZ S2505 QSW ...

Страница 26: ... Peaking 82µH AB CAPACITORS EL Electrolytic C851 VCCCCY1HH151J J 150p 50V Ceramic AA C852 VCCCCY1HH151J J 150p 50V Ceramic AA C853 VCCSPA1HL151J J 150p 50V Ceramic AA C854 RC KZ0029CEZZ J 0 01 1 4kV Ceramic AC or RC KZ0160CEZZ C883 VCEA0A1CW336M J 33 16V EL AB RESISTORS M Ox Metal Oxide R851 VRS CY1JF470J J 47 1 16W M Ox AA 19R M100S R852 VRD RA2BE181J J 180 1 8W Carbon AA R853 VRS CY1JF121J J 120...

Страница 27: ...00 19R M100S PACKING OF THE SET REAR Use tape to fix the top side of packing case Packing Case FRONT Buffer Material Wrapping Paper Polyethylene Bag Operation Manual Infrared R C Unit Batteries MARK Not replacement items Use 10 staples to fix the bottom side of packing case ...

Страница 28: ...blication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan D SEM P SEMEX TQ1071 S Feb 2001 Printed in Japan MI KG ...

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