Panasonic Omnivision VHS PV-C2780 Service Manual Download Page 165

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0.1

C4209

0.1

C4208

0.22

C4224

0.01

C9201

0.022

C9209

C4222

0.022

C9208

0.1

C4227

0.01

C4223

0.01

C4220

C9204

0.015

C4218

0.047

C4212

100/6.3V

C4301

10/16V

C4226

10/16V

C4229

47/6.3V

C4228

1/50V

C9205

1/50V

C9210

33/6.3V

C4210

10/16V

C9203

1/50V

C4203

100/6.3V

C4302

1/50V

C4202

2.2/50V

C4214

1/50V

C9211

10/16V

C4201

100/6.3V

C4216

10/16V

C4230

47/6.3V

C9202

1/50V

C9207

1/50V

C4205

1/50V

C4204

3.3/50V

C9206

1/50V

C4225

100

L9201

100

R4217

47K

R4219

10K

R9202

R4309

1500

R4211

R4215

47K

R9212

220K

R9204

510

R4203

R9201

4700

R4201

R4310

R9203

47K

R9213

3900

R9208

R4308

1500

R4212

12K

R4213

R9211

100

R4216

39K

R4205

R4214

39K

R4206

3300

R9207

18K

R4208

18K

R4207

R9210

3300

R9205

2700

R9209

R4307

R4209

47K

R4218

15K

R4210

R9206

R9010

22/16V

C9020

D9001

4.7/25V

C9001

68K

R9002

R9017
820

5600P

C9007

2700P

C9018

4.7/25V

C9002

100K

R9006

R9018

R9005

4.7/25V

C9004

Q9001

2SC2412K1

R9011

C9009

4.7/25V

3300

R9009

10K

R9003

1200

R9004

100

L9001

0.047

C9017

10/16V

C9005

0.01

C9019

1/50V

C9010

10/16V

C9011

C9014 4.7/25V

Q9002

C9016 4.7/25V

0.012

C9008

4.7/25V

C9003

R9012

3900

R9007

1/50V

C9006

3.3/50V

C9015

C4283

C4280

C4282

C4281

C4279

C9102

C9114

C9111

R9118

C9101

R9104

C9116

R9111

C9109

C9117

C9118

C9103

C9106

C9119

L9101

Q9102

C9115

Q9101

C9105

R9106

D9101

C9107

R9107

C9108

C9120

R9109

R9110

R9117

R9102

R9112

C9104

C9110

R9105

R9103

C9024

C9021

C9022

R4312

R4311

R9014

10/16V

C9013

R9016

10/16V

C9012

C9112

C9113

R9114

R9115

R9113

R9019

R9020

33K

R4220

15K

R4222

33K

R4221

15K

R4223

R4305

R4303

R4304

R4306

R4301

100

R4302

100

C4303

C4305

0.01

C4307

0.01

C4308

C4306

C4304

1/50V

C4207

1/50V

C4206

560

R4289

VLFS0014

FL4272

0.033

C4277

VLFS0014

FL4271

560

R4287

39K

R4288

39K

R4290

0.033

C4278

R9101

R9108

10K

R9001

R9008

R4285

R4272

1200

R4277

22K

R4274

R4284

0.082

C4273

R4280

0.01

C4275

3300

R4283

R4271

R4286

27K

R4275

27K

R4279

0.01

C4271

IC4271

UPC4574G2-T1

3300

R4276

R4281

22K

R4278

0.082

C4274

1200

R4282

0.01

C4284

0.01

C4285

470

R4293

470

R4292

D4281
MA111

D4282
MA111

D4284
MA111

D4283
MA111

1500P

C4287

1500P

C4286

R4294

270

D4285

MA4051-M

J4274

J4273

J9002

J4276

J9001

J4275

J4271

J9201

J4272

J4301

IC4201

AN3962FB-V

0.01

C4221

0.047

C4213

0.015

C4219

4700

R4202

510

R4204

2.2/50V

C4215

100/6.3V

C4217

33/6.3V

C4211

IC9201
AN7420

R9116

C9023

OUT

V+

VEE

V-

OUT

VCC

V-

OUT

V-

OUT

V+

V-

V+

VCC

V+

V-

OUT

VEE

AUDIO
MUTE(H)

I2C
BUS

AMP

RF AGC
DETECTOR

LINE2

LINE1

TUNER

(R-CH)

L+R

SWITCHING NOISE
COMPENSATOR

REC

Hi-Fi

MIX

NORMAL

PB LPF

AMP

NORMAL

MIX

Hi-Fi

(L-CH)

TUNER

HOLD
TIMING

LINE1

PB LPF

LINE2

MUTE

REC

GND

REC

MUTE

V-REF

+5V

NOISE REDUCTION
/COMPRESSOR
/EXPANDER

SWITCHING NOISE
COMPENSATOR

+5V

NOISE
DETECTOR

LIMITER

1.3MHz
BPF

AMP

+12V

REC LPF

RF AGC

NOISE REDUCTION
/COMPRESSOR
/EXPANDER

VCO

REC LPF

FM
LIMITER

1.7MHz
BPF

VCO

LIMITER

BPF

Hi-Fi AUDIO
PROCESS

ANTENNA

AUDIO(L+R)

SERIAL CLOCK

SERIAL DATA 0

FM TRANSMITTER CS(H)

SW+12V

PIN

FM TRANSMITTER ON(L)

AUDIO(L-R)

GND

SW+5V

TO FM TRANSMITTER
C.B.A. P4801

TO TV/VCR

MAIN C.B.A.

REC AUDIO

GND

PB Hi-Fi AUDIO(H)

I2C SERIAL DATA

GND

Hi-Fi HEAD SW

P4201

I2C SERIAL CLOCK

GND

PB AUDIO

AUDIO MUTE(H)

NORMAL AUDIO

OUTPUT SELECT A

TO TV/VCR

MAIN C.B.A.

SW+12V

GND

OUTPUT SELECT B

P4202

GND

P4203

TUNER 1(L)

AUDIO L CH

TUNER AUDIO 1

FM RADIO(H)

SW+5V

GND

AUDIO R CH

TO TV/VCR

MAIN C.B.A.

MTS(H)/SAP(L)

SW+9V

AUDIO 1 DEFEAT(H)

TO TV/VCR

MAIN C.B.A.

SAP SIGNAL(L)

GND

P4204

MTS SIGNAL(L)

MONO(H)/STELEO(L)

AUDIO 2 DEFEAT(H)

P4205

SAP SIGNAL(L)

TO TV/VCR

MAIN C.B.A.

FM MONO(H)

AUDIO L CH

FM STEREO(L)

MONO(H)/STELEO(L)

MTS(H)/SAP(H)

TUNER AUDIO 2

ANTENNA

SERIAL DATA 0

GND

SERIAL CLOCK

TUNING CONTROL

TO TV/VCR

MAIN C.B.A.

FM TRANSMITTER CS)H)

FM TRANSMITTER ON)L)

P4206

GND

P4207

GND

AUDIO R CH

TO TV/VCR

MAIN C.B.A.

AUDIO L CH

AUDIO -5V

STEREO
DETECTOR

R-CH

STEREO SIGNAL
DEMODULATOR

MONO/STEREO
SELECTOR

L-CH

GND

FLIP FLOP
19KHz

PHASE
DETECTOR

STEREO
LED DRIVE

VCO

AMP

VCC

DC AMP

FLIP FLOP
38KHz

FLIP FLOP
19KHz

GND

VDD

VEE

INPUT
SELSCT

BU4052BCF

GND

VDD

VEE

INPUT
SELSCT

BU4052BCF

VCC

VEE

IC9002

(OP AMP)

VCC

GND

MODE
SELECTOR

MTS/SAP AUDIO
PROCESS

MTS/SAP
SIGNAL
PROCESS

LED
DRIVE

MTS/SAP
SIGNAL
PROCESS

MTS/SAP AUDIO
PROCESS

LED
DRIVE

VCC

6 GND

MODE
SELECTOR

SWITCHING
AUDIO
DEFEAT ON

IC4302

(OP AMP)

VJBS4034

SEPARATION(L)

SEPARATION

SEPARATION(H)

FM VCO

REC AUDIO

PB AUDIO

(5.1V)

SWITCHING
AUDIO
DEFEAT ON

SEPARATION(H)

SEPARATION(L)

SEPARATION

TUNING CONTROL

2SC2412K1

MA165

100

10K

22/16V

MA165 1K

820

2SC2412K1

0.01

1800

4.7/25V

10K

68K

4.7/25V

10/16V

1/50V

100

5600P

0.012

4.7/25V

3900

1/50V

22K

33K

10/16V

4.7/25V

3.3/50V

4.7/25V

0.047

2700P

3000

150

1/4W

0.01

47/6.3V

LM833M

47K

0.01

47/6.3V

150

1/4W

0.01

33K 1/4W

22K

33K

22K

1/4W

0.01

18K

10K

LM833M

10K

0.01

18K

22K

(FM SIGNAL PROCESS)

1000P

1/4W

UNLESS OTHERWISE SPECIFIED;
WATTAGE OF RESISTORS IS 1/10W.

2SC2412K1

NOTE:

FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.

NOTE:

PARTS ENCLOSED IN DASHED LINES MARKED "Z" ARE NOT USED.

Summary of Contents for Omnivision VHS PV-C2780

Page 1: ...3103C1 B6 Combination VCR PV C2780 PV C2780 K SPECIFICATIONS 2000 Matsushita Kotobuki Electronics Industries LTD All rights reserved Unauthorized copying and distribution is a violation of law 1 SAFET...

Page 2: ...an from accidents resulting in personal injury from electrical shocks It will also protect Combination VCR from being damaged by accidental shorting that may occur during servicing 3 When servicing ob...

Page 3: ...jumper between the two prongs on the plug 2 For physically operated power switches turn power on Otherwise skip step 2 3 Measure the resistance value with an ohmmeter between the jumpered AC plug and...

Page 4: ...ential source of X Radiation in TV sets is the High Voltage section and the picture tube 2 When using a picture tube test fixture for service ensure that the fixture is capable of handling 32 0 kV wit...

Page 5: ...not present at that point when 120 V AC is applied find the cause Check R503 R5505 C5507 C513 and D503 3 Carefully check above specified parts and related circuits and parts When the circuit is repai...

Page 6: ...tial shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to p...

Page 7: ...ides guidelines for proper grounding and in particular specifies that the cable ground shall be connectedto the grounding system of the building as close to the point of cable entry as practical 4 OPE...

Page 8: ...Fig 1 3 Fig 1 4 8...

Page 9: ...Fig 1 5 3 Press any operation button except for POWER on either the unit or the remote to detect that a key has been pressed The 1st digit changes to 0 only when key is detected Fig 1 6 9...

Page 10: ...er become non operational 5 1 2 SERVICE POSITION 5 1 2 1 Service Position CAUTION HOT CIRCUIT Primary circuit exists on the TV VCR Main C B A and the TV Power C B A Use extreme care to prevent acciden...

Page 11: ...TV Power C B A This circuit is identified as HOT on the C B A and in the Service Manual Use extreme care to prevent accidental shock when servicing 5 1 4 SERVICE MODE In order to inhibit detection of...

Page 12: ...clears the Opener Lever 2 Make sure that all guide tabs are aligned properly Then press the VCR Unit straight in Fig 3 5 1 6 HOW TO INITIALIZE MEMORY IC After the Memory IC IC6004 or TV VCR Main C B...

Page 13: ...TEREVR PG SHIFTER ADJUSTMENT MODE in ELECTRICAL ADJUSTMENT procedures Fig 4 2 3 Press and hold STOP PLAY and VOL DOWN buttons on the unit together over 5 seconds again or press the POWER button OFF to...

Page 14: ...UNLOADING OF MECHANISM 5 1 7 1 Manual Method Turn the Loading Gear clockwise for loading or counterclockwise for unloading using needlenose pliers etc Note Do not use this method if Mechanism is jamm...

Page 15: ...rtion a DC to Portion b CAUTION Before applying DC Power Supply be sure to disconnect the Motor Leads from the Connector P2503 Otherwise the Loading Motor Drive IC IC2501 may be damaged Fig 5 2 When l...

Page 16: ...ove a jammed tape as follows 5 1 8 1 Manual Method When a tape jam is encountered check the tape loading condition and use the following procedure to remove a tape jam Fig 6 1 5 1 8 1 1 Method 1 1 Mov...

Page 17: ...pulling the Cassette Up Ass y out far enough so that it clears the Drive Rack Arm slide the Drive Rack Unit as indicated by the arrow to remove the cassettetape from the Cassette Up Ass y 7 Check the...

Page 18: ...by rotating the Loading Gear CAUTION 1 Before applying DC Power Supply be sure to disconnect the Motor Leads from the Connector P2503 Otherwise the Loading Motor Drive IC IC2501 may be damaged 2 If l...

Page 19: ...n C B A however it is possible to check the VCR even when CRT C B A and Anode Cap are removed 5 1 10 WIRE AND LEAD POSITION DIAGRAM Fig 8 5 1 11 DEFEATING THE AUTO TRACKING To defeat the Auto Tracking...

Page 20: ...is is not isolated from the AC power line Use a transformer of adequate power rating as this protects the technician from accidentsresulting in personal injury from electrical shocks It will also prot...

Page 21: ...des When the solder on both electrodes is melted remove the leadless component with a twisting motion Note A Do not attempt to lift the component off the board until the component is completely discon...

Page 22: ...cuit board 5 1 19 MODEL NO IDENTIFICATION MARK Use Marks shown in the chart below to distinguish the different models included in this Service Manual 5 2 IC TRANSISTOR AND CHIP PART INFORMATION 5 2 1...

Page 23: ...PACITOR Because of the width of the color bands the reading direction cannot be specified However the color band can be read on either side Be sure to confirm the value using the schematic diagram CAU...

Page 24: ...assembly Method How to read chart shown above A Order of Procedure steps When reassembling perform steps s in reverse order These numbers are also used as the identification location No of parts in Fi...

Page 25: ...g No showing Procedure or Part Location D Identification of part to be removed unhooked unlocked released unplugged or unsoldered 6 S 1 6 Screws S 1 6 L 1 6 Locking Tabs L 1 P 1 Spring P 1 E Refer to...

Page 26: ...Fig D5 6 1 2 1 Notes in chart 26...

Page 27: ...Then press the VCR Unit straight in Fig D6 2 Removal of CRT Unit Place the Unit face down on a soft cloth before removing the CRT Unit 3 Installation of VCR Chassis Unit When installing 2 Screws S 6 s...

Page 28: ...nd Cassette Up Ass y straight onto the TV VCR Main C B A so that the Sensor LED clears the hole in the Mechanism Chassis and that 4 Connectors P6201 P6202 P3001 and P4001 are aligned and seated secure...

Page 29: ...6 2 2 Inner Parts Location Fig J1 1 29...

Page 30: ...6 2 3 EJECT Position Confirmation Fig J1 2 30...

Page 31: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 31...

Page 32: ...s positioned on the front side of the Cylinder shaft so that the center line of the plateis just less than 1 0 mm measured from the center of the Cylinder shaft If required adjust the plate position b...

Page 33: ...6 2 5 Capstan Belt Support Angle Intermediate Gear B and Main Cam Gear Fig J3 1 6 2 5 1 Reassembly Notes 33...

Page 34: ...ction of Main Cam Gear is in the upward position as shown Fig J3 2 2 Confirmation Alignment of Intermediate Gear B Main Cam Gear and Intermediate Gear A A Confirm that the Hole A on Lift Gear is a Thr...

Page 35: ...nsists of a Main Cam Gear and a Main Cam Push Nut However Main Cam Push Nut is available separately as a replacement part 5 Installation of Main Cam Gear and Main Cam Push Nut A After installing the S...

Page 36: ...ble Install a new one 6 2 6 Center Clutch Unit Changing Gear Spring Changing Gear and Idler Arm Unit Fig J4 1 6 2 6 1 Reassembly Notes 1 Installation of Center Clutch Unit A Fit the Center Clutch Unit...

Page 37: ...Fig J5 1 6 2 7 1 Reassembly Notes 1 Alignment of Main Rod and T Loading Arm Unit A Align the Gear of T Loading Arm Unit with Gear of Main Rod Confirm that the Hole on Main Rod is a Through Hole with a...

Page 38: ...pper Angle Capstan Rotor Unit Oil Seal Capstan Stator C B A and MR Head Fig J6 1 6 2 8 1 Reassembly Notes 1 Application of Silicon Grease CAUTION When installing the IC2501 AN3845SC or Capstan Stator...

Page 39: ...Rotor Unit and Oil Seal A Install the 2 Oil Seals into the Capstan Holder Unit Then insert the Capstan Rotor Unit Shaft into the hole of the Capstan Holder Unit so that shaft passes through 2 Oil Seal...

Page 40: ...oading Arm Unit onto the chassis B Install the T Loading Arm Unit so that the hole on T Loading Arm Unit is aligned with the hole on S Loading Arm Unit C Confirm that the holes on the S T Loading Arm...

Page 41: ...sist Spring or the Tension Arm Unit replace only the Tension Arm Unit with a new one and remove the Assist Spring 6 2 10 1 Reassembly Notes 1 How to distinguish between S Reel Table and T Reel Table F...

Page 42: ...Alignment of Intermediate Gear A Lift Gear and P5 Arm Unit A Rotate the Lift Gear so that Hole A on Lift Gear is a Through Hole with a hole on chassis B Install the Intermediate Gear A so that the ho...

Page 43: ...r Piece A Install the Opener Piece so that the slot of the Opener Piece is inserted to the Pin of Pinch Arm Unit Fig J10 3 6 2 13 Motor Block Unit Audio Control Head Unit Lift Gear Capstan Holder Unit...

Page 44: ...6 3 CASSETTE UP ASS Y SECTION 6 3 1 Top Plate Wiper Arm Unit and Holder Unit Fig K1 1 44...

Page 45: ...of Wiper Arm Unit and Drive Rack Unit A Slide the Drive Rack Unit to the far right as indicated by the arrow B Install the Wiper Arm Unit so that the hole on the Wiper Arm Unit is aligned with the hol...

Page 46: ...e on Side Plate L and R B Insert Holder Unit boss A and B into the grooves as shown in Fig K1 1 C Finally in the EJECTPosition confirm that the protrudence on the Wiper Arm Unit is aligned with the in...

Page 47: ...7 2 1 CLEANING PROCEDURE FOR THE UPPER CYLINDER UNIT 1 While slowly turning the Upper Cylinder Unit counterclockwise by hand gently rub the Video Heads with a Head Cleaning Stick VFK27 moistened with...

Page 48: ...runs smoothly with a constant tension Symptom of Misadjustment 1 If the tape tension is less than the specified value the tape cannot come into proper contact with the Video Heads resulting in poor pi...

Page 49: ...e Tension Control Arm Unit Fig M2 2 Note A Be sure that the three probes of the meter are all in solid contact with the tape but not touching any other parts of the mechanism B It is recommended that...

Page 50: ...the screwdriver clockwise until the MR Head touches the rotor Then turn it slightly counterclockwise to make theclearance as specified 4 Tighten Screw A 5 Reinstall the TV VCR Main C B A Fig M3 1 Note...

Page 51: ...uipment Required Dual Trace Oscilloscope VHS Alignment Tape VFMS0003H6 Post Adjustment Driver VFK0329 H Position Adjustment Driver VFK0330 7 2 2 3 1 ENVELOPE OUTPUT ADJUSTMENT The height of the P2 and...

Page 52: ...t so that the envelope waveform becomes as flat V1 V max is 0 7 or more as possible No envelope drop If the envelope drop appears on the left half of the waveform adjust P2 post height If the envelope...

Page 53: ...ed An intermittent Blue screen may be seen in Playback 1 Play back a T120 cassette tape and check that the tape travels smoothly between the upper and lower guides of the P4 post 2 If necessary adjust...

Page 54: ...r counterclockwise to raise Fig M6 7 2 2 3 4 AUDIO CONTROL HEAD AZIMUTH ADJUSTMENT Purpose To adjust the position and height of the Audio Control Head so that it meets the tape tracks properly Symptom...

Page 55: ...it 1 Place a jumper between TP6003 and 5V TP6009 on the TV VCR Main C B A to defeat Auto Tracking 2 Eject the tape and insert it again to access the Neutral Tracking position 3 Play back the alignment...

Page 56: ...ts the following equipment is required 1 Dual Trace Oscilloscope Voltage Range 0 001 V to 50 V Div Frequency Range DC to 50 MHz Probes 10 1 1 1 2 NTSC Video Pattern Generator 3 DVM Digital Volt Meter...

Page 57: ...ereo Signal will not be separated properly resulting in no stereophonic effect Test Point TP9001 TP9101 Audio C B A Adjustment R9001 R9008 R9101 R9108 Audio C B A Specification minimum level INPUT Ant...

Page 58: ...that the signal level of TP9001 is minimum 5 Set the MTS SAP Signal Generator as follows MTS ONLY L CH 3 kHz 5 Hz 14 or 7 Modulating 6 Adjust R9008 SEP H on the Audio C B A so that the signal level of...

Page 59: ...ATION ADJUSTMENT are completed Purpose To separate the L and R Channels of Stereo Signal Symptom of Misadjustment The L and R Channels of Stereo Signal will not be separated properly resulting in no s...

Page 60: ...de and then set to STEREO audio 4 Adjust R9003 on the Audio C B A so that the signal level is minimum Fig E3 1 5 Connect the Oscilloscope to TP9101 on the Audio C B A 6 Adjust R9103 on the Audio C B A...

Page 61: ...01 on Audio C B A to GND through a resistor 3 3 k Then connect Frequency Counter to TP9201 Fig E4 2 3 Adjust R9206 FM VCO so that the frequency is 38 0 kHz 50 Hz 7 3 6 EVR Electronic Variable Register...

Page 62: ...7 3 7 EVR ADJUSTMENT ITEM The following Items need to be adjusted for EVR adjustment PG SHIFTER ADJUSTMENT SUB CONTRAST ADJUSTMENT CUT OFF DRIVE ADJUSTMENT 62...

Page 63: ...just 1 Press CH UP DOWN key on the remote control to select control function to be adjusted Important Note Make a note of the original value of the controls before modifying in case the wrong control...

Page 64: ...gain or press the POWER button OFF The adjusted value will be written to Memory IC IC6004 7 3 9 HOW TO ENTER EVR PG SHIFTER ADJUSTMENT MODE 1 Enter EVR adjustment mode 2 Insert the VHS Alignment Tape...

Page 65: ...e Press DISPLAY key again on the remote control 7 3 11 PG SHIFTER ADJUSTMENT Purpose Determine the Video Head Switching Point during Playback Symptom of Misadjustment May cause Head Switching Noise an...

Page 66: ...lease EVR PG Shifter Adjustment Mode The adjusted value will be written to Memory IC IC6004 Fig E6 7 3 12 SUB CONTRAST ADJUSTMENT Purpose To set the optimum sub contrast level Symptom of Misadjustment...

Page 67: ...te of the original value adjust to the D0 5 Select SUB CONTRAST in EVR adjustment mode and adjust so that the level A is 3 0 V p p 0 1 V p p 6 Select SUB BRIGHT in EVR adjustment mode and reset to the...

Page 68: ...rmer SUB BRIGHT EVR R SUB BRIGHT EVR B DRIVE EVR R DRIVE EVR B CUT OFF EVR G CUT OFF EVR R CUT OFF EVR Specification Refer to descriptions below Input Antenna Input Terminal Monoscope Pattern Signal M...

Page 69: ...n the Flyback Transformer clockwise carefully and stop at the point where any color is first observed 10 In EVR adjustment mode select the two colors not observed in step 9 from the following control...

Page 70: ...oint where any color is first observed 21 In EVR adjustment mode select the two colors not observed in step 20 from the following control functions B CUT OFF G CUT OFF or R CUT OFF and adjust so that...

Page 71: ...scilloscope NTSC Video Pattern Generator 1 Set to PINP mode and then set PARENT PICTURE to UHF VHF TUNER TV DEMODULATOR 2 UNIT input 2 Supply the Rainbow Color Bar signal to Antenna Input Terminal 3 S...

Page 72: ...VHF TUNER TV DEMODULATOR 1 UNIT input 9 Select R SUB BRIGHT in EVR adjustment mode Then after making a note of the original value adjust to the minimum C0 10 Select R SUB TINT in EVR adjustment mode a...

Page 73: ...Mode STOP Equipment NTSC Video Pattern Generator 1 Supply a Monoscope Pattern Signal to the Video Input Jack 2 Select H CENTER in EVR adjustment mode and adjust so that A is approximately equal to wi...

Page 74: ...m of Misadjustment White becomes bluish or reddish Test Point TP50 CRT C B A Adjustment FOCUS CONTROL Flyback Transformer SCREEN CONTROL Flyback Transformer SUB BRIGHT EVR R SUB BRIGHT EVR G DRIVE EVR...

Page 75: ...P50 on the CRT C B A Use TP47 for GND 4 Select SUB BRIGHT and move the shaded area to the value in EVR adjustment mode 5 Adjust the FOCUS CONTROL on the Flyback Transformer so that the center of pictu...

Page 76: ...ing a note of the original value adjust to the minimum C0 and while turning SUB BRIGHT value from minimum C0 up to maximum 3F confirm that the screenis tracking the White Pattern properly Repeat the a...

Page 77: ...G DRIVE and B DRIVE in EVR adjustment mode and adjust so that the entire screen is white 27 Select R SUB BRIGHT in EVR adjustment mode Then after making a note of the original value adjust to the min...

Page 78: ...de and adjust so that the black screen starts to turn grey lighting only 7 3 18 PINP CHROMINANCE LEVEL ADJUSTMENT Purpose To set the optimum chrominance level Symptom of Misadjustment The CHILD PICTUR...

Page 79: ...on the TV PROCESS C B A 4 Select COLOR in EVR adjustment mode and adjust so that level A and B should be equal in amplitude Fig E12 1 Fig E12 2 7 3 19 PINP LUMINANCE LEVEL ADJUSTMENT Purpose To set th...

Page 80: ...NP mode and then move CHILD PICTURE to the upper left on monitor 2 Supply a Color Bar signal to the Video Input Jack 3 Connect the Oscilloscope to TP5305 on the TV PROCESS C B A 4 Select PCONTRAST in...

Page 81: ...81...

Page 82: ...RAM AND CIRCUIT BOARD LAYOUT NOTES 8 2 MAIN I SYSTEM CONTROL SERVO OPERATION CYLINDER DRIVE SCHEMATIC DIAGRAM 8 3 MAIN II SIGNAL PROCESS OSD AUDIO SCHEMATIC DIAGRAM 8 4 MAIN III SCHEMATIC DIAGRAM 8 5...

Page 83: ...AMP SCHEMATIC DIAGRAM 8 15 CRT SCHEMATIC DIAGRAM 8 16 CAPSTAN STATOR SCHEMATIC DIAGRAM 8 17 INTERCONNECTION SCHEMATIC DIAGRAM 8 18 SIGNAL WAVEFORM 8 19 VOLTAGE CHART 9 CIRCUIT BOARD LAYOUT 9 1 TV VCR...

Page 84: ...AUDIO SIGNAL PATH BLOCK DIAGRAM 10 6 SYSTEM CONTROL BLOCK DIAGRAM 10 7 SERVO BLOCK DIAGRAM 10 8 PICTURE IN PICTURE BLOCK DIAGRAM 10 9 TV YC PROCESS BLOCK DIAGRAM 11 EXPLODED VIEWS 11 1 MECHANISM TOP...

Page 85: ...11 2 MECHANISM BOTTOM SECTION 85...

Page 86: ...11 3 CASSETTE UP COMPARTMENT SECTION 86...

Page 87: ...11 4 CHASSIS FRAME SECTION 1 87...

Page 88: ...11 5 CHASSIS FRAME SECTION 2 88...

Page 89: ...11 6 PACKING PARTS AND ACCESSORIES SECTION 89...

Page 90: ...12 REPLACEMENT PARTS LISTS BEFORE REPLACING PARTS READ THE FOLLOWING 12 1 REPLACEMENT NOTES 12 1 1 General Notes 1 Use only original replacement parts 90...

Page 91: ...s of replacement parts according to the parts list 5 Parts different in shape or size may be used However only interchangeable parts will be supplied as service replacement parts 6 Parts with mark MKA...

Page 92: ...000 M 1 000 k All capacitors are in F P F 10 All coils are in H M 1 000 H 10 4 Abbreviation RTL Retention Time Limited This indicates that the retention time is limited for this item After the discon...

Page 93: ...UHF VHF TUNER TV DEMODULATOR UNIT 1 Ref No E21 and the UHF VHF TUNER TV DEMODULATOR UNIT 2 Ref No E150 have already been pre adjusted at the factory donot try to adjust them Their replacement parts ar...

Page 94: ...LUTCH UNIT 2 42 VMBS1151 CHANGING GEAR SPRING 2 43 LSDG0114 CHANGING GEAR 2 44 VXLS1091 IDLER ARM UNIT 2 45 VXPS0391 CAPSTAN ROTOR UNIT 2 46 LSMA0387 STOPPER ANGLE 2 47 LSMM0002 MAIN ROD 2 48 LXQVB012...

Page 95: ...X0143 SUPPORT PIECE 5 MKA 258 KL 250 19 PURSE LOCK CLAMPER 4 MKA 12 2 2 SCREWS AND WASHERS Ref No Part No Part Name Description Remarks 401 VHDS0475 SCREW STEEL 1 405 VHDS0496 SCREW W WASHER STEEL 5 4...

Page 96: ...R MAIN C B A INTEGRATED CIRCUITS Ref No Part No Part Name Description Remarks IC501 TLP621GR IC LINEAR OVER CURRENT DETECTOR MKA IC1001 0N3131 R KT IC LINEAR ERROR V DET IC2601 AN3808K IC LINEAR CYLIN...

Page 97: ...2SD601 R S CHIP Q1053 2SD2097TV2R CHIP Q1057 2SA1175 TF MKA OR 2SA1175 TH MKA OR 2SA1175 TJ MKA OR 2SA1175 TK MKA OR 2SA564A Q R S OR 2SA733 TK MKA OR 2SA733 TP MKA OR 2SA733 TQ MKA Q1058 2SC2412K1 CH...

Page 98: ...46R CHIP OR 2SB709A CHIP Q6003 2SC2412K1 CHIP OR 2SD601A CHIP Q6004 2SA1037K146R CHIP OR 2SB709A CHIP Q6005 2SC2412K1 CHIP OR 2SD601A CHIP Q6006 DTA143EK CHIP OR UN211L CHIP Q6007 2SC2412K1 CHIP OR 2S...

Page 99: ...E ABSORBER 360 MKA D882 ERZV10V361CS SURGE ABSORBER 360 MKA D1001 S1WBA60B D1002 ERA18 04V3 D1003 ERA18 04V3 D1005 ERA18 04V3 D1006 ERC30 01L3 OR RU3YXLFC1 D1007 ERA18 04V3 D1008 ERC81 004 D1011 MA405...

Page 100: ...CYSARH101KB CERAMIC 50V 100P D4703 VCYSARH101KB CERAMIC 50V 100P D4705 VCYSARH101KB CERAMIC 50V 100P D4708 MA111 CHIP D4710 MA111 CHIP D6001 VEKS5708 SENSOR LED UNIT D6002 MA165 OR 1SS119 OR 1SS133T D...

Page 101: ...TJ473 47K R586 ERDS2TJ393 39K R591 ERF5ZJ121 W FLMPRF 5W 120 R809 ERJ6GEYJ222V MGF CHIP 1 10W 2 2K R810 ERDS2TJ101 100 R811 ERDS2TJ103 10K R812 VRESC2TK825T SOLID 10 1 2W 8 2M R815 ERDS2TJ223 22K R100...

Page 102: ...ERJ6GEYJ474V MGF CHIP 1 10W 470K R3028 ERJ6GEYJ272V MGF CHIP 1 10W 2 7K R3029 ERJ6GEYJ151V MGF CHIP 1 10W 150 R3032 ERJ6GEYJ122V MGF CHIP 1 10W 1 2K R3035 ERJ6GEYJ103V MGF CHIP 1 10W 10K R3036 ERJ6GEY...

Page 103: ...W 10K R3390 ERJ6GEYJ222V MGF CHIP 1 10W 2 2K R4001 ERJ6GEYJ103V MGF CHIP 1 10W 10K R4002 ERJ6GEYJ334V MGF CHIP 1 10W 330K R4003 ERJ6GEYJ221V MGF CHIP 1 10W 220 R4004 ERJ6GEYJ333V MGF CHIP 1 10W 33K R4...

Page 104: ...RJ6GEYJ222V MGF CHIP 1 10W 2 2K R6007 ERJ6GEYJ221V MGF CHIP 1 10W 220 R6008 ERJ6GEYJ221V MGF CHIP 1 10W 220 R6011 ERJ6GEYJ102V MGF CHIP 1 10W 1K R6012 ERJ6GEYJ102V MGF CHIP 1 10W 1K R6013 ERJ6GEYJ102V...

Page 105: ...4 ERJ6GEYJ475V MGF CHIP 1 10W 4 7M R6125 ERJ6GEYJ332V MGF CHIP 1 10W 3 3K R6126 ERJ6GEYJ182V MGF CHIP 1 10W 1 8K R6127 ERJ6GEYJ563V MGF CHIP 1 10W 56K R6128 ERDS2TJ221 220 R6129 ERDS2TJ221 220 R6130 E...

Page 106: ...V MGF CHIP 1 10W 1K R6508 ERDS2TJ102 1K R6509 ERDS2TJ102 1K R6511 ERDS2TJ102 1K R6512 ERJ6GEYJ102V MGF CHIP 1 10W 1K R6513 ERJ6GEYJ102V MGF CHIP 1 10W 1K R6514 ERDS2TJ102 1K R6515 ERDS2TJ103 10K R6516...

Page 107: ...ption Remarks C501 ECQB1H473KM POLYESTER 50V 0 047 MKA C510 ECKW2H681KB5 CERAMIC 500V 680P C513 ECA1HM100B ELECTROLYTIC 50V 10 C524 ECKC3D471KBP CERAMIC 2KV 470P C531 ECA1HM3R3B ELECTROLYTIC 50V 3 3 M...

Page 108: ...CA0JM102B ELECTROLYTIC 6 3V 1000 C1018 ECUV1E104ZFN C CHIP 80 20 25V 0 1 C1021 EEUGA1H1R0B ELECTROLYTIC 50V 1 C1025 VCKSFKK102MX CERAMIC 20 125V 1000P OR VCKSFMK102MX CERAMIC 20 125V 1000P OR VCKSFVK1...

Page 109: ...3038 ECEA1CKA100 ELECTROLYTIC 16V 10 C3041 ECUV1H103ZFN C CHIP 80 20 50V 0 01 C3043 ECUV1H392KBN C CHIP 50V 3900P C3044 ECUV1H103ZFN C CHIP 80 20 50V 0 01 C3045 ECEA1HKAR47 ELECTROLYTIC 50V 0 47 C3046...

Page 110: ...V 0 033 C4011 ECUV1H103KBN C CHIP 50V 0 01 C4012 ECEA1HKA010 ELECTROLYTIC 50V 1 C4013 ECEA0JKA470 ELECTROLYTIC 6 3V 47 C4014 ECEA1HKA010 ELECTROLYTIC 50V 1 C4051 ECUV1E333KBN C CHIP 25V 0 033 C4102 EC...

Page 111: ...UV1H680JCN C CHIP 5 50V 68P C6208 ECUV1E104KBN C CHIP 25V 0 1 C6209 ECUV1E104ZFN C CHIP 80 20 25V 0 1 C6211 ECEA0JKS470 ELECTROLYTIC 6 3V 47 C6212 ECUV1H100CCN C CHIP 0 25P 50V 10P C6213 ECUV1H272KBN...

Page 112: ...L4004 VLQSH02R100K 10 L4101 ELESN471KA 470 L4701 ELEXT101KE04 100 L4702 ERJ6GEY0R00V MGF CHIP 1 10W 0 L4703 BK2125HM102 FERRITE CORE 1K L4704 ERJ6GEY0R00V MGF CHIP 1 10W 0 L6002 ELEXT101KE04 100 L7002...

Page 113: ...125V 1 6A OR XBA1C16NU100 FUSE 125V 1 6A PR1001 ICP N38 TP1 IC PROTECTOR 1 5A OR UNH000600A IC PROTECTOR 1 5A PR1003 ICP F25 1 IC PROTECTOR 1 0A MKA OR UN11010 IC PROTECTOR 1 0A MKA PR1004 ICP F25 1...

Page 114: ...VSCS1072 HEAT SINK E138 XYN3 F8S SCREW W WASHER STEEL E147 LSMB0226 FM ANTENNA MKA E148 LSGF0037 BARRIER MKA E150 ENG36704G TUNER 2 UHF VHF NR E151 T3A1301 GROUNDING STRAP E152 VEKS5755 GROUNDING WIRE...

Page 115: ...V MGF CHIP 1 10W 510 R4204 ERJ6GEYJ511V MGF CHIP 1 10W 510 R4205 ERDS2TJ393 39K R4206 ERJ6GEYJ393V MGF CHIP 1 10W 39K R4207 ERJ6GEYJ183V MGF CHIP 1 10W 18K R4208 ERJ6GEYJ183V MGF CHIP 1 10W 18K R4209...

Page 116: ...1 ELESN101KA 100 R4302 ELESN101KA 100 R4303 ERDS2TJ333 33K R4304 ERJ6GEYJ333V MGF CHIP 1 10W 33K R4305 ERJ6GEYJ223V MGF CHIP 1 10W 22K R4306 ERJ6GEYJ223V MGF CHIP 1 10W 22K R4307 ERJ6GEYJ183V MGF CHIP...

Page 117: ...10W 33K R9114 ERJ6GEYJ223V MGF CHIP 1 10W 22K R9115 ERJ6GEYJ333V MGF CHIP 1 10W 33K R9116 ERJ6GEYJ223V MGF CHIP 1 10W 22K R9117 ERJ6GEYJ821V MGF CHIP 1 10W 820 R9118 ERJ6GEYJ102V MGF CHIP 1 10W 1K R92...

Page 118: ...228 ECEA0JKA470 ELECTROLYTIC 6 3V 47 C4229 ECEA1CKA100 ELECTROLYTIC 16V 10 C4230 ECEA1CKA100 ELECTROLYTIC 16V 10 C4271 ECUV1H103ZFN C CHIP 80 20 50V 0 01 C4273 ECUV1E823KBN C CHIP 25V 0 082 MKA C4274...

Page 119: ...TIC 50V 1 C9107 ECUV1H562KBN C CHIP 50V 5600P C9108 ECUV1H123KBN C CHIP 50V 0 012 C9109 ECEA1EKN4R7 ELECTROLYTIC 25V 4 7 C9110 ECEA1HKA010 ELECTROLYTIC 50V 1 C9111 ECEA1CKA100 ELECTROLYTIC 16V 10 C911...

Page 120: ...OUS Ref No Part No Part Name Description Remarks E39 VMAS1912 P C B SUPPORT ANGLE E139 VEPS4033A FM TRANSMITTER C B A NR MKA 12 3 3 TV PROCESS C B A INTEGRATED CIRCUITS Ref No Part No Part Name Descri...

Page 121: ...K1 CHIP OR 2SD601A CHIP Q5212 2SA1037K146R CHIP OR 2SB709A CHIP Q5213 2SA1037K146R CHIP OR 2SB709A CHIP Q5214 2SA1037K146R CHIP OR 2SB709A CHIP Q5215 2SC2412K1 CHIP OR 2SD601A CHIP Q5216 2SA1037K146R...

Page 122: ...DIODES Ref No Part No Part Name Description Remarks D5201 MA165 OR 1SS119 OR 1SS133T D5304 MA165 OR 1SS119 OR 1SS133T D5501 MA4062 L ZENER 6 2V RESISTORS 122...

Page 123: ...0W 15K R5219 ERJ6GEYJ471V MGF CHIP 1 10W 470 R5220 ERJ6GEYJ331V MGF CHIP 1 10W 330 R5221 ERJ6GEYJ153V MGF CHIP 1 10W 15K R5222 ERJ6GEYJ103V MGF CHIP 1 10W 10K R5223 ERJ6GEYJ474V MGF CHIP 1 10W 470K R5...

Page 124: ...10W 100 R5275 ERJ6GEYJ683V MGF CHIP 1 10W 68K R5276 ERJ6GEYJ683V MGF CHIP 1 10W 68K R5301 ERJ6GEYJ182V MGF CHIP 1 10W 1 8K R5302 ERJ6GEYJ223V MGF CHIP 1 10W 22K R5303 ERJ6GEYJ472V MGF CHIP 1 10W 4 7K...

Page 125: ...R5515 ERJ6GEYJ272V MGF CHIP 1 10W 2 7K R5604 ERJ6GEYJ332V MGF CHIP 1 10W 3 3K R5651 ERJ6GEYJ821V MGF CHIP 1 10W 820 R5652 ERJ6GEYJ561V MGF CHIP 1 10W 560 R5653 ERJ6GEYJ682V MGFCHIP 1 10W 6 8K R5654 ER...

Page 126: ...CHIP 80 20 25V 0 1 C5226 ECUV1H680JCN C CHIP 5 50V 68P C5227 ECEA0JKA470 ELECTROLYTIC 6 3V 47 C5228 ECUV1E104ZFN C CHIP 80 20 25V 0 1 C5230 ECEA1HKN010 ELECTROLYTIC 50V 1 C5231 ECUV1E104ZFN C CHIP 80...

Page 127: ...FN C CHIP 80 20 50V 0 01 C5363 ECEA0JKA220 ELECTROLYTIC 6 3V 22 C5364 ECUV1H220JCN C CHIP 5 50V 22P C5365 ECUV1H220JCN C CHIP 5 50V 22P C5366 ECUV1H220JCN C CHIP 5 50V 22P C5367 ECEA1CKA100 ELECTROLYT...

Page 128: ...C CHIP 80 20 50V 0 01 C5671 ECUV1H103ZFN C CHIP 80 20 50V 0 01 C5672 ECUV1H103ZFN C CHIP 80 20 50V 0 01 C5673 ECUV1H560JCN C CHIP 5 50V 56P C5674 ECUV1H390JCN C CHIP 5 50V 39P C5675 ECUV1E104ZFN C CHI...

Page 129: ...S0111 CHIP BEAD INDUCTOR MKA L5303 VLPS0111 CHIP BEAD INDUCTOR MKA L5351 ELESN101KA 100 L5352 ELESN101KA 100 L5353 ELESN101KA 100 L5652 ELESN150KA 15 L5653 LSLQF06R101K 10 100 L5654 ELESN4R7KA 4 7 L56...

Page 130: ...Part No Part Name Description Remarks IC451 LA7837 IC LINEAR VERTICAL OUT TRANSISTORS Ref No Part No Part Name Description Remarks Q431 2SA1175 OR 2SA1175 TH MKA OR 2SA733 TQ MKA Q432 2SC3311A R MKA...

Page 131: ...402 ERDS2TJ103 10K R405 ERG2SJ561H METAL OXIDE 2W 560 R406 ERDS2TJ334 330K R409 ERJ6GEYJ273V MGF CHIP 1 10W 27K R410 ERDS2TJ272 2 7K R411 ERDS2TJ104 100K R413 ERJ6GEYJ333V MGF CHIP 1 10W 33K R414 ERX1...

Page 132: ...K R541 ERDS2TJ473 47K R542 ERDS2TJ103 10K R543 ERDS2TJ472 4 7K R545 ERDS2TJ331 330 R546 ERDS2TJ103 10K R547 ERJ6GEYJ153V MGF CHIP 1 10W 15K R548 ERDS2TJ104 100K CAPACITORS Ref No Part No Part Name Des...

Page 133: ...ERDS2TJ104 100K R806 ERQ14AJ470P FUSE 47 R813 ERDS2TJ124 120K CAPACITORS Ref No Part No Part Name Description Remarks C805 ECOS2DP681BB ELECTROLYTIC 200V 680 MKA C806 ECA2EM330E ELECTROLYTIC 250V 33 M...

Page 134: ...517 ECUV1E104KBN C CHIP 25V 0 1 C2519 ECUV1H102KBN C CHIP 50V 1000P C2520 ECUV1C225ZFN C CHIP 80 20 16V 2 2 C2521 ECUV1C225ZFN C CHIP 80 20 16V 2 2 C2522 ECUV1C225ZFN C CHIP 80 20 16V 2 2 PIN HEADERS...

Page 135: ...C CHIP 80 20 25V 0 1 C3511 ECUV1E104ZFN C CHIP 80 20 25V 0 1 C3512 ECUV1E104ZFN C CHIP 80 20 25V 0 1 C3513 ECUV1H104ZFN C CHIP 80 20 50V 0 1 C3519 ECUV1H104ZFN C CHIP 80 20 50V 0 1 C3520 ECUV1H104ZFN...

Page 136: ...RG2ANJ153H METAL OXIDE 2W 15K R353 ERG2ANJ153H METAL OXIDE 2W 15K R354 ERD25TJ272 2 7K R355 ERD25TJ272 2 7K R356 ERD25TJ272 2 7K R357 ERDS2TJ332 3 3K R358 ERDS2TJ332 3 3K R359 ERDS2TJ332 3 3K R360 ERD...

Page 137: ...SCREW STEEL E47 XTW3 10J TAPPING SCREW STEEL E48 XYN3 F10S SCREW W WASHER STEEL E50 TMM7443 1 CLAMPER E51 TJC6319 FUSE HOLDER E55 XNG3 NUT STEEL E73 TUX77809 CLAMPER E108 VMFS0136 SHEET NYLON RAYON E1...

Page 138: ...Ref No Part No Part Name Description Remarks E152 VEKS5755 GROUNDING WIRE E153 LSZC0001 SHEET CU E154 LSGQ0027 CUSHION PLASTIC 138...

Page 139: ...OCK TO IC3001 7 I2 C SERIAL CLOCK TO FROM IC5301 44 TO IC5301 43 I2 C SERIAL DATA I2 C SERIAL CLOCK IC6004 IC3301 Q6301 Q6302 Q6303 MEMORY IC6501 SUB SYSTEM CONTROL MICROCONTROLLER TUNER 1 U7001 TUNER...

Page 140: ...ERATOR HEAD AMP CONTROL ROTARY SIGNAL GENERATOR HEAD AMP SELECT SIGNAL GENERATOR PG FG SEPARATOR FORCED ACCELERATION HEAD SW SIGNAL GENERATOR SLOW STILL CONTROL TP6202 INTEGRATION INTEGRATION TP6211 C...

Page 141: ...E SIGNAL PROCESS CLAMP LUMINANCE TO FROM TV Y C PROCESS BLOCK DIAGRAM CHROMINANCE FROM T551 5 H PULSE FROM IC5301 10 V PULSE BUFFER Q5301 TV PROCESS C B A BUFFER Q5653 Q5655 BUFFER Q5654 Q5656 BUFFER...

Page 142: ...58MHz TO FROM PICTURE IN PICTURE BLOCK DIAGRAM CHROMINANCE LUMINANCE X5601 21 22 23 29 28 27 20 P351 4 P351 3 P5301 4 P5301 3 P5301 2 P351 2 P352 1 P352 3 P552 1 P552 3 D5304 43 44 16 18 11 33 40 10...

Page 143: ...e cable box You cannot view a channel other than the one selected for any type of recording do a Timer recording of a channel unless you select it at the cable box Note to CABLE System Installer This...

Page 144: ...t first press SWAP to switch it to the Main Picture CH 08 P I P CH 10 Main Picture CH Position PIP CH Position You can view two pictures simultaneously using two tuners and picture in picture PIP disp...

Page 145: ...ps if a program PlusCode programming number is not listed program such as a sporting event may run over scheduled stop time You can obtain unlisted PlusCode programming numbers by calling 1 900 454 75...

Page 146: ...a station 2 Press to move cursor to the right 3 Press to select channel number 4 Press to set PRESET CAPT I ON SELECT KEY SET KEY END ACT I ON KEY PBS CNN ESPN HBO ABC ABC CBS FOX NBC Go with preset...

Page 147: ...PLAY REPEAT PLAY REPEAT FF FF REC REC TIMER FM TIMER FM ACTION ACTION REC REC ON TIMER ON TIMER PROG TIMER PROG TIMER 2 FM Radio is This unit has an FM radio with built in antenna 9 station preset an...

Page 148: ...T KEY SET KEY END ACT I ON KEY SET UP TV PIP SIZE NORMAL LOCK CAPT I ON I NPUT SELECT TUNER V I DEO ADJUST SET UP FM SPEAKER ON 4 1 Press to select a number 2 Press or to set Enter your secret code SE...

Page 149: ...ference in audio level between Hi Fi and normal audio playback Notes record and playback MTS stereo broadcast main language in stereo Hi Fi Stereo sound is recorded on the left and right audio tracks...

Page 150: ...U7101 U V TUNER U V TUNER D810 C801 D808 C802 TP805 D807 C803 D591 D809 C804 C816 C815 R591 D811 C808 TP804 C809 TP802 M1 F801 9 TP801 M2 8 HOT CIRCUIT CAUTION Do not touch L803 TP803 R502 R501 R572 R...

Page 151: ...6 J4274 R9208 R4287 R4289 J4275 C4277 C4278 C4274 C4286 C4284 C4285 D4284 FL4271 FL4272 D4282 D4281 R4288 R4283 R4280 R4281 R4282 R4286 R4271 IC4271 R4278 R4285 R4293 P4207 VJBS4034 R4292 R4277 R4272...

Page 152: ...57 R5271 C5269 Q5216 Q5214 Q5210 Q5211 IC5202 Q5212 Q5213 Q5215 Q5217 R5252 R5255 R5270 R5245 R5248 R5317 R5319 X5601 R5506 R5513 R5515 R5511 R5504 R5405 R5503 R5403 C5906 C5664 C5652 R5307 R5931 R532...

Page 153: ...504 R520 Q502 P452 1 9 C530 D501 B C E R482 B C E R473 R470 R476 Q433 Q434 Q432 R478 R479 R422 R433 R436 R477 R434 R469 B C E C414 C401 R411 R509 P451 R435 B C E Q431 R432 R414 R410 C429 R468 R466 C40...

Page 154: ...A E HEAD AUDIO CONTROL HEAD P C B CRT C B A LRP63005E NOTE FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES REFER TO BEGINNING OF SCHEMATIC SECTION CAUTION WHEN SERVICINGTHIS C B A AVOIDTOUCHING H...

Page 155: ...her words its counter part Use the interconnection schematic diagram to find the connection between associated connectors Example The connections between C B A s are shown below AUDIO CONTROL HEAD UNI...

Page 156: ...188 22K R6186 SERIAL DATA1 UNSW 14V CYL UNSW 14V CAP J6005 J6006 J6001 Q6008 1800 R6315 1800 R6316 1800 R6317 Q6301 Q6302 Q6303 J6301 J6004 OSC 1 MTS SIGNAL L SAP SIGNAL L AUDIO DEFEAT H IR DATA I2C S...

Page 157: ...17 WF8 PB C TUNER AUDIO 1 19 WF9 Y C MIX BEEPER N 75 20 WF10 TUNER AUDIO HEAD 3 18 21 WF11 Z REC AUDIO HEAD 17 18 WF12 72 REC DELAY REC 12V 20 22 WF14 PB 16 23 WF15 LINE SW 5 6V 24 WF16 REC PB CHROMIN...

Page 158: ...CT GND 79 78 77 76 VCO 1 4 CONV 1 40 AFC SIDE LOCK COLOR KILLER DETECTOR FREQUENCY DET REC PB GND 1 4 1 1 2 3 4 84 83 82 81 80 CNR VXO BPF X2 SUB VCC 2FSC FSC CHROMA PHASE COMPEN SATOR REC VIDEO SIGNA...

Page 159: ...ESS C B A P5306 42 40 39 GND BLUE GREEN RED TV SIGNAL L GND V PULSE TO MAIN VI H PULSE I2C SERVICE L TO MAIN I SW 5V TO MAIN V PB VIDEO H LINE VIDEO L TO MAIN VIII TUNER VIDEO L LINE PB VIDEO H TUNER...

Page 160: ...AMP TV SOUND OUTPUT CONTROL VCC2 GND TO SPEAKER EARPHONE JACK 1 DC 16V AUDIO L CH TV VOLUME CONTROL AUDIO R CH 2 3 4 GND GND AUDIO L CH AUDIO R CH P4591 JK4591 2 1 4 3 5 6 G B H C I D E A F A 116 77...

Page 161: ...ES IS MA165 1SS119 1SS133T AND WATTAGE OF RESISTORS IS 1 10W TO MAIN I 10V POWER DOWN L A L TO MAIN VI G 7 4 Z WF45 TO MAIN III B H ERROR VOLTAGE DET 8 TO MAIN II P1001 5 3 TO MAIN I C WF43 I 6 SWITCH...

Page 162: ...PULSE H PULSE 0 56 25V 5W 2SD2539LBK HOT CIRCUIT BE CAREFUL AND USE AN ISOLATION TRANSFORMER WHEN SERVICING Z HIGH VOLTAGE PROTECTOR GND 125V 4A 500V TO MAIN V P1001 FOCUS B TO MAIN I HORIZONTAL DRIVE...

Page 163: ...I PLL 2 LOCK L VJBS3083 TUNER VIDEO 1 TUNER VIDEO 1 TUNER AUDIO 1 FM SIGNAL L FM RADIO H AFC 1 TUNER 1 SIGNAL L TUNER SIGNAL L FM SIGNAL L FM RADIO H AFC 1 TO MAIN III TO MAIN II TO MAIN VIII AFC 2 TU...

Page 164: ...IAL DATA TUNER SERIAL CLOCK TO MAIN II TO MAIN III TO MAIN I TO MAIN II TO MAIN I TO MAIN VII MONO H STEREO L MTS H SAP L OUTPUT SELECT A OUTPUT SELECT B SUB SYSTEM CONTROL MICROCONTROLLER GND FM SIGN...

Page 165: ...TCHING NOISE COMPENSATOR 5V NOISE DETECTOR LIMITER 1 3MHz BPF AMP AMP 45 12V 12 48 9 37 22 8 PC 24 36 REC LPF 25 23 RF AGC 34 NOISE REDUCTION COMPRESSOR EXPANDER VCO PC REC LPF FM LIMITER 1 7MHz BPF V...

Page 166: ...AGRAM AN3962FB V RF AGC REC LPF 1 3MHz BPF REC PB VCO PC 12V V REF I C BUS TUNER LINE L CH RF AGC DETECTOR L R L L R R MUTE L R L MUTE Hi Fi MIX NORMAL Hi Fi MIX NORMAL AMP AMP AMP PB LPF LIMITER 1 7M...

Page 167: ...656 100 C5676 22 16V R5327 0 R5247 L5221 100 Q5211 R5256 560 C5268 R5248 220 C5269 C5255 22 16V R5272 560 R5258 820 J5307 R5245 560 Q5213 Q5217 C5253 22 16V J5304 Q5215 R5270 220 R5246 390 C5252 0 1 R...

Page 168: ...ACC DETECTOR HPF COLOR CONTROL TINT CONTROL APC COLOR KILLER DETECTOR VCO 9 6V VCC 1 BGP VCC 6 1V GND GND V SYNC SEPARATION V OUT V COUNT DOWN H SYNC SEPARATION H LOCK DETECTOR AFC 2 HOLD DOWN DETECT...

Page 169: ...NJM2235M 1 2 3 4 5 6 7 8 IC5353 NJM2235M 1 2 3 4 5 6 7 8 IC5352 NJM2235M 1 2 3 4 5 6 7 8 11 3 6 5 4 7 1 2 12 13 10 J5203 1 P5304 2 4 3 5 7 6 IC5201 M65667FP TP5206 TP5207 TP5204 TP5203 GND VCC L H L H...

Page 170: ...PULSE 1 4W 7 DRIVE HIGH VOLTAGE PROTECT TO TV VCR MAIN C B A P451 11 DISCHARGE 1 4W 1 4W 1 4W 1 Z EXCESSIVE CURRENT DETELTOR V PULSE Z 8 GND 1 4W 4 7V 2 WF46 V HEIGHT CONTROL Z EXCESSIVE CURRENT DETEL...

Page 171: ...3501 10 7 1 HEAD AMP SW 9 CUE REV SS L SW 12V GND 11 12 6 7 8 P3502 TO CYLINDER UNIT PATTERN ONLY UNSW 14V GND HE VH HE MAIN COIL 1 1 MAIN COIL 2 2 MAIN COIL 3 3 5 4 9 VIDEO SP L R HEAD VIDEO LP SLP R...

Page 172: ...56 P351 IC SCREEN 1 P357 P354 P355 P353 BLUE AMP AMP GREEN AMP RED WF60 TP47 WF61 WF62 TP49 TP50 FOCUS ANODE 3 A E G 1 A B C I 4 5 2 F H D CRT SOCKET LRP63005 Z Z Z 2W 2W 2W UNLESS OTHERWISE SPECIFIED...

Page 173: ...TRANSISTOR HALL TRANSISTOR HALL TRANSISTOR CAPSTAN SERVO 1 14 12 13 11 10 15 16 17 18 19 20 21 22 23 24 2 3 4 5 6 7 8 9 25 26 27 28 3 4 1 2 GND CAP FG CAP DIRECTION CAP FG CAP TORQ LIM LD M FWD H V R...

Page 174: ...6 Pins P6202 P2601 12 Pins PIN P4206 8 Pins Z FM TRANSMITTER PACK P4801 PIN 12 Pins PIN P4207 7 Pins PIN TV PROCESS C B A P5302 6 Pins PIN P5303 12 Pins PIN P5305 12 Pins PIN P5306 6 Pins PIN P5304 7...

Page 175: ...1 6 11 6 IC6501 1 0 0 2 4 8 4 8 3 5 2 5 2 4 0 1 2 8 5 3 8 3 8 6 0 0 7 5 1 5 2 8 0 0 9 0 0 10 0 0 11 4 8 4 8 12 0 0 13 4 1 4 1 14 0 0 15 0 4 0 4 16 0 4 0 4 17 2 4 2 4 18 3 0 3 0 19 5 1 5 2 20 5 2 5 2 2...

Page 176: ...74 5 3 5 3 5 3 75 5 3 5 3 5 3 76 5 3 5 3 5 3 77 3 6 3 6 3 6 78 5 1 5 2 5 2 79 5 2 5 2 5 2 80 5 2 5 2 5 2 81 3 4 3 0 3 4 82 0 0 0 83 0 0 0 84 0 0 0 85 3 0 2 6 2 6 86 2 1 2 6 2 6 87 2 6 2 6 2 6 88 2 6 2...

Page 177: ...0 4 0 13 5 0 5 0 14 4 3 4 3 15 4 1 4 1 16 4 2 4 2 17 0 0 18 5 2 5 2 19 0 0 20 4 1 4 1 21 1 8 1 8 22 4 2 4 2 23 4 2 4 2 24 4 2 4 2 25 4 2 4 2 26 1 8 1 8 27 4 2 4 2 28 3 3 3 3 29 4 2 4 2 30 4 1 4 1 IC90...

Page 178: ...7 24 9 1 9 1 25 3 6 3 6 26 9 2 9 2 27 0 0 28 0 0 29 0 0 30 5 8 5 8 31 6 2 2 0 32 3 7 3 7 33 7 6 7 6 34 8 2 8 2 35 5 2 5 2 36 4 3 4 3 37 9 7 9 7 38 9 1 9 1 39 2 3 2 1 40 1 6 1 7 TV PROCESS C B A NOTE F...

Page 179: ...00Vp p PIN 13 OF IC3001 2V 2ms 1 CUE REV SLOW STILL WF15 0 180Vp p V1 PIN 34 OF IC3001 0 1V 5ms 2 PB WF16 0 240Vp p V1 PIN 41 OF IC3001 0 2V 5ms 2 REC WF17 0 350Vp p V1 PIN 41 OF IC3001 0 2V 5ms 2 PB...

Page 180: ...IC451 20V 5ms1 POWER ON WF46 169 0Vp p V1 Q501 COLLECTOR 50V 20 s1 POWER ON WF47 4 60Vp p V1 Q551 BASE 5V 20 s1 POWER ON WF48 1000 0Vp p V1 Q551 COLLECTOR 200V 20 s1 POWER ON WF49 24 0Vp p V1 PIN 3 OF...

Page 181: ...92 TP807 3 4 5 130V REGULATOR IC801 IC1001 Q1001 Q1002 TV POWER C B A 1 3 7 8 9 10 11 12 6 5 1 2 4 UNSW 14V LED PR1003 D1056 TP1002 TP1003 PR1004 PR1005 Q1051 Q1052 UNSW 14V CAP SW 5 6V SW 5V TO IC600...

Page 182: ...W FROM IC6001 24 HEAD SW PULSE FROM IC6001 50 PB L TP3501 30 18 16 4 6 13 11 1 32 31 P3503 5 P3503 2 P3503 6 P3503 4 P3503 1 P3503 3 P3503 2 P3503 1 P3503 3 30 31 1 4 6 18 VIDEO L HEAD VIDEO R HEAD L...

Page 183: ...TUNER 1 AUDIO NORMAL AUDIO NORMAL AUDIO P6202 3 P6202 1 P3001 3 P3001 4 P2601 3 P2601 1 P3501 3 P3501 4 P4091 2 P4091 1 P4091 4 P4091 3 P4092 2 P4092 1 P4092 4 P4092 3 P4001 1 P4001 2 PIN 1 PIN 2 56 T...

Page 184: ...CH TO IC4201 35 TUNER AUDIO R CH TUNER1 TUNER2 FM FM AMP AMP TUNER1 FM FM TUNER2 TP9201 IC9201 R9206 R9008 R9001 R9003 INPUT SELECT MTS SAP SIGNAL PROCESS IC9001 IC9002 OP AMP IC4302 IC4301 P4203 25...

Page 185: ...203 18 PIN 13 P4202 13 3 5 9 3 9 P4951 2 P4951 1 FROM IC6001 23 Hi Fi HEAD SW P4591 4 P4591 3 PIN 11 P4202 11 P4201 4 PIN 4 PIN 6 P4201 6 13 14 1 16 3 5 7 FROM IC6001 49 Hi Fi DELAY REC H Hi Fi AUDIO...

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Panasonic Omnivision VHS PV-C2780, Service Manual

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Summary of Contents for Omnivision VHS PV-C2780

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