Panasonic OmniVision PV-M2066 User manual

Brand: Panasonic

Model: OmniVision PV-M2066

Category: Cassette players

Type: User manual

-1-

Combination-VCR

Simplified

Printed in Japan

PV-M2066

ORDER NO. MKS9603M316

is a violation of law.

ITEM SPECIFICATION

Head: 4 rotary heads helical scanning system

Input Level: VIDEO IN Jack (Phono type) 1.0 Vp-p 75

Ω

unbalanced

Signal-to-Noise Ratio: SP: more than 43dB

LP/SLP: more than 41dB

Horizontal Resolution: Color/Monochrome: more than 230 lines

Head: Normal Mono: 1 stationary head

Hi-Fi Stereo: 2 rotary heads

Input Level: AUDIO IN Jack (Phono type) - 10dBV 50k

Ω

unbalanced

Output Level: AUDIO OUT Jack (Phono type) - 8dBV 1k

Ω

unbalanced

Frequency Response: Normal Mono: SP: 100Hz ~ 8kHz

LP: 100Hz ~ 6kHz

SLP: 100Hz ~ 5kHz

Hi-Fi Stereo: SP/LP/SLP: 20Hz ~ 20kHz

Signal-to-Noise Ratio: Normal Mono: SP: more than 42dB

LP/SLP: more than 40dB

Hi-Fi Stereo: SP/LP/SLP: more than 60dB

Wow and Flutter: Normal Mono: SP: Less than 0.2% WRMS

LP: Less than 0.3% WRMS

SLP: Less than 0.4% WRMS

Hi-Fi Stereo: Less than 0.015% WRMS

Broadcast Channels: VHF 2 ~ 13, UHF 14 ~ 69

CATV Channels: Midband A through I (14 ~ 22)

Video

ITEM SPECIFICATION

CATV Channels: Superband J through W (23 ~ 36)

Hyperband AA ~ EEE (37 ~ 64)

Lowband A-5 ~ A-1 (95 ~ 99)

Special CATV channel 5A (01)

Ultraband 65 ~ 94, 100 ~ 125

SP: 1-5/16 i.p.s (33.35mm/sec), LP: 21/32 i.p.s (16.67mm/sec),

SLP: 7/16 i.p.s (11.12mm/sec)

Record/Playback Time: 8 Hrs with 160min. type tape used in SLP mode

FF/REW Time: Less than 5min. (120min. type tape)

Tape width 1/2" (12.7mm) high density tape

20 inch measured diagonal 90

deflection

Source: 120V AC

10%, 60Hz

0.5%

Consumption: Approx. 110 watts (power on), Approx. 7 watts (power off)

EIA Standard (525 lines, 60 fields) NTSC Color Signal

F(5

C) ~ 104

F(40

C) (Temperature)

10% ~ 75% (Humidity)

21-1/8"(536mm) (W) X 21-3/16"(538mm) (H) X 19-1/16"(484mm) (D)

Approx. 54.0 lbs (24.5 kg)

Tape

Format

VCR

Tuner

Audio

GENERAL

VCR

SPECIFICATIONS

Weight and dimensions shown are approximate.

Specifications are subject to change without notice.

Tuner

Tape

Speed

Picture

Tube

DISPLAY

Power

Television

System

Operating

Condition

Dimension

Weight

Please use this manual together with the Service Manual for Order No. MKS9602M315

Model No. PV-M2046.

-2-

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service

or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

VCR Plus+ and PlusCode are trademarks of Gemstar Development Corporation. The VCR Plus+ system is manufactured under

license from Gemstar Development Corporation.

Equipped with dbx

-TV Noise Reduction for true MTS reproduction. dbx

-TV Noise Reduction is required for good stereo

separation and audio fidelity.

TABLE OF CONTENTS

DIFFERENCES BETWEEN PV-M2066 and PV-M2046

I. COMPARISON CHART BETWEEN PV-M2066 & PV-M2046

Mechanical Replacement Parts List.............................................................................................................3

Electrical Replacement Parts List ................................................................................................................4

II. EXPLODED VIEW

4. Chassis Frame Section............................................................................................................................5

III. REPLACEMENT PARTS LIST

Electrical Replacement Parts List ................................................................................................................7

IV. SUMMARY

B. Helpful Service Notes and Cautions (please read)................................................................................15

V. ADJUSTMENT PROCEDURES

A. Mechanical Adjustment Procedures ......................................................................................................17

1. Disassembly of Cabinet Parts...........................................................................................................17

3. Adjustment Procedures.....................................................................................................................20

C. Electrical Adjustment Procedures .........................................................................................................21

3. Adjustment Procedures.....................................................................................................................21

VI. SCHEMATIC DIAGRAMS

Stereo Amp / Audio/Video Jack Schematic Diagram.................................................................................22

Main II Partial Schematic Diagram.............................................................................................................25

TV Main Partial Schematic Diagram ..........................................................................................................25

Hi-Fi Audio Schematic Diagram.................................................................................................................26

Hi-Fi Audio/Video Head Amp Schematic Diagram.....................................................................................31

Interconnection Schematic Diagram ..........................................................................................................34

VII. CIRCUIT BOARD DIAGRAMS

Stereo Amp C.B.A......................................................................................................................................37

Main Partial Circuit Board Diagram............................................................................................................37

Hi-Fi Audio/Video Head Amp C.B.A...........................................................................................................38

Hi-Fi Audio C.B.A.......................................................................................................................................39

Audio/Video Jack C.B.A.............................................................................................................................40

TV Main Partial Circuit Board Diagram ......................................................................................................40

Signal Waveform........................................................................................................................................41

VIII. BLOCK DIAGRAM

Hi-Fi Audio/MTS/SAP Black Diagram ........................................................................................................42

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TV Operation

I C.B.A.

Operation II

C.B.A.

VCR Main

C.B.A.

UHF/VHF Tuner

/TV Demodulator Unit

Mechanism

Chassis and

Cassette Up

Ass'y

Frame

TV Main C.B.A.

Frame

Insulated material

(See Note Item 1)

Cassette Up Ass'y

Power

Supply Ass'y

Power

Supply Ass'y

VCR Main

C.B.A.

TV Main

C.B.A.

P1201

Screw (S-3) Stereo Amp

C.B.A.

Support Angle -R

How to place the Stereo Amp C.B.A.:

How to place the Power Supply Ass'y:

B. HELPFUL SERVICE NOTES AND CAUTIONS (Please read)

IV. SUMMARY

Servicing the VCR Section and the TV Section

1. Service Position (1)

Service Position (1) is used for checking and replacing

Mechanical and Electrical parts.

To position the VCR Unit for servicing as shown in Fig. 2-1, use

the following procedure.

1) Remove Back Cover by removing 7 Screws (S-1) in Fig.

D2, Page 18.

2) Disconnect Degaussing Coil Connector, Speaker Lead

Ass'y P4604, P4605, A/V Jack Connector P4203 and

Earphone Jack Connector P4602 in Fig. D3, Page 18.

3) If necessary, release all cords from Clamper on CRT

C.B.A.

4) Carefully remove VCR Unit from TV Cavity and place VCR

Unit in the direction shown in Fig. 2-3, Page 1-11, included

in PV-M2046 Service Manual.

5) Disconnect connector P4502 on Hi-Fi Audio C.B.A. Then

remove the Stereo Amp C.B.A. by releasing 3 Clampers

from Top Shield Plate Ass'y in Fig. D6, Page 19.

6) Remove the Top Shield Plate Ass'y by removing 5 Screws

(S-3) in Fig. D6.

7) Remove Operation I, II C.B.A.s by releasing 6 Locking

Tabs (L-1) in Fig. D5, Page 18.

8) Disconnect connector P801 and remove 2 Screws (S-11).

Then remove Power Supply Ass'y by disconnecting

connector P1201 in Fig D6.

9) Disconnect 3 connectors P201, P202 and P203 on the TV

Main C.B.A. in Fig. D7, Page 19. (See Note Item 2 Page

1-9, included in PV-M2046 Service Manual.)

10) Remove the TV Main C.B.A. by releasing 4 Locking Tabs

(L-2) and A/C Cord from the frame in Fig. D7.

11) Remove 2 Screws (S-4), Screw (S-5), Screw (S-6), Screw

(S-12) and Chassis Angle in Fig. D8, Page 19.

12) Remove VCR Chassis Unit by releasing Locking Tab

(L-3) from the frame in Fig. D8 .

13) Reconnect 3 connectors P201, P202 and P203 betwen

the TV Main C.B.A. and the VCR Main C.B.A.

14) Place the Stereo Amp C.B.A. to Support Angle -R with a

Screw (S-3) as shown in Fig. 2-1. Then reconnect connector

P4502.

15) Carefully place the VCR Chassis Unit and the TV Main

C.B.A. as shown in Fig. 2-1. (See Note Item 1 Page 1-9,

included in PV-M2046 Service Manual.)

16) Remove Screw (S-7) and Screw (S-8) in Fig. D9, Page

19.

17) Disconnect connector P6002 on the VCR Main C.B.A.

coming from the Safety Tab SW. in Fig. D9.

18) Open the Mechanism Chassis and the Cassette Up Ass'y.

19) Place the Power Supply Ass'y on the VCR Main C.B.A. as

shown in Fig. 2-1. Then reconnect the 2 connectors P1201

and P801.

20) Place the jumper between TP6001 and GND.

21) After servicing, make sure that all wires and leads are

placed in their original position.

Fig. 2-1

-16-

TV Main

C.B.A.

VCR Main

C.B.A.

CRT C.B.A.

Stereo

Amp C.B.A.

A/V Jack

C.B.A.

Clamper

Speaker -R

Speaker -L

P4604

Deflection

Yoke

Connector

P801

Flyback

Transformer

Degaussing Coil Connector

Clamper Clamper

Clamper

Frame

Top Shield

Plate Ass'y

P6002

Anode Cap

Deflection Yoke

P354

Degaussing Coil

Grounding Wire

Safety Tab SW

P6001

P203

P201

P202

Operation I

C.B.A.

Clamper

45°

Red

White +

-White

Red

Note:

No lead wires or flat cables should

touch any heating parts or the Heat

Sink Plate of IC451, IC801, or Q551.

P4602

P4605

Hi-Fi Audio

C.B.A.

Power Supply

Ass'y

P4502

P4203

P204

P1201

(To P1001

on the Power

Supply Ass'y)

Wire and Lead Position Diagram

After servicing, make sure that all wires and leads are placed in their original position.

It is important for the best operation of the unit.

Fig. 5

-17-

DISASSEMBLY METHOD

1 Back Cover D2 7(S-1) -

2 VCR Unit D3, P354, Anode Cap,

D4 P4203, P4602, P4604,

P4605, CRT C.B.A., 1

DeflectionYoke Connector,

Degaussing Coil Connector

3 CRT Unit D3 4(S-2) 2

4 Operation I D5 P6001, 6(L-1) -

and Operation

II C.B.A.s

5 Power Supply D6 (S-11), P1201, P801 -

Ass'y 2(L-4) 3

6 Stereo D6 P4502 -

Amp C.B.A.

7 Top Shield D6 5(S-3) -

Plate Ass'y

8 TV Main D7 P201, P202, P203, P204, 4

C.B.A. 4(L-2)

9 VCR Chassis D8 2(S-4), (S-5), (S-6), (S-12), 5

Unit Chassis Angle, (L-3)

10 VCR Main D9 (S-7), (S-8), P6002, -

C.B.A. P2501, P3501

11 Cassette Up D10 2(S-9), 2(S-10) 6

Ass'y

12 Mechanism D10 --------------------------- 7

Chassis

Step

/Loc.

No. Part Remove

Fig.

No.

1. DISASSEMBLY OF CABINET PARTS

DISASSEMBLY FLOWCHART

This flowchart indicates the disassembly steps of the cabinet

parts and the P.C. Boards in order to gain access to the item(s)

to be serviced. When reassembling, perform the step(s) in the

reverse order.

Caution : Disconnect AC Plug before disassembly.

Fig. D1

A. MECHANICAL ADJUSTMENT PROCEDURES

V. ADJUSTMENT PROCEDURES

Note

How to read chart shown above :

A : Order of steps in Procedure

When reassembling, perform the step(s) in the reverse

order.

These numbers are also used as the identification

(location) No. of parts in Figures.

B : Part to be removed or installed.

C : Fig. No. showing Procedure or Part Location.

D : Identification of part to be removed, unhooked, unlocked,

released, unplugged, unclamped, or unsoldered.

2(S-1)=2 Screws(S-1); 3(L-1)=3 Locking Tabs(L-1)

Back Cover

CRT

Unit

3Operation

I and

Operation

II C.B.A.s

VCR Unit

Mechanism Chassis

Cassette Up Ass'y

VCR Main C.B.A.

Stereo

Amp

C.B.A.

TV Main C.B.A.8

VCR Chassis Unit

Top Shield Plate Ass'y7

Power

Supply

Ass'y

-18-

Fig. D2

Rear View 1 Back Cover

(S-1)

2 VCR Unit

VCR Unit

Holes (A)

Guide Tabs (A)

Bottom view of VCR Unit

Hole (B)

Tabs (B)

Hole (B)

Fig. D4

TV CRT C.B.A.

Anode Cap

3 CRT Unit

(S-2)

2 VCR Unit

P354 (S-2)

Deflection Yoke

Connector

Degaussing

Coil Connector

P4605 P4602 P4604

P4203

Fig. D3

4 Operation II

C.B.A.

4 Operation I

C.B.A.

(L-1) P6001 (L-1)

Fig. D5

-19-

(S-6)

Chassis Angle

9 VCR

Chassis

Unit

(S-4)

(S-5)

(L-3)

(S-12)

P201

P202

P203

8 TV Main

C.B.A.

(L-2)

P204

6 Stereo

Amp C.B.A.

(S-3)

P801

7 Top Shield

Plate Ass'y

(S-3)

Clamper

(S-3)

Clamper

(S-11) 5 Power Supply

Ass'y

P4502

(L-4)

P1201

Fig. D6

Fig. D8

Fig. D7

P3501

P2501

(S-7)

10 VCR Main C.B.A.

P6002

(S-8)

Fig. D9

-20-

11 Cassette Up

Ass'y

12 Mechanism

Chassis

(S-9)

(S-10) (S-10)

Fig. D10

Reference <Notes> in Chart, Page 17:

1. To remove VCR Unit from TV Cavity, proceed with following

step,

1) Lift up the rear side of VCR Unit slightly to raise Tabs (B).

2) Slide VCR Unit out as far as you can.

3) Push up front side of VCR Unit from underneath in order

to raise 2 Guide Tabs (A) into place.

4) Pull VCR Unit all the way out from TV Cavity.

When reinstalling;

Ensure that the VCR Unit is mounted all the way to the front.

2. Place unit face down on a soft cloth before removing the

CRT Unit.

3. When removing the Shield Case of the Power Supply Ass’y,

twist and straighten 2 Locking Tabs (L-4) on the Power

Supply Ass’y in Fig. D6. Then remove the Shield Case by

pulling it away from the Power Supply Ass’y.

4. When disconnecting or connecting connectors P201, P202

and P203, work with care not to break them.

5. When removing the VCR Chassis Unit, refer to Note Item

3, Page 1-9, included in PV-M2046 Service Manual.

6. When reinstalling the Cassette Up Ass'y, mechanical

adjustment (alignment) should be performed for proper

operation. Please refer to “HOW TO INSTALL CASSETTE

UP ASS'Y ONTO MECHANISM CHASSIS” Page 2-28,

included in PV-M2046 Service Manual.

7. When reinstalling the Mechanism Chassis to the VCR Main

C.B.A., refer to “Removal/Installation of Mechanism Chassis

to the VCR Main C.B.A.,” Page 1-18, included in PV-M2046

Service Manual.

3. ADJUSTMENT PROCEDURES

REPLACEMENT OF UPPER CYLINDER

UNIT

1. REMOVAL OF UPPER CYLINDER UNIT

Work with extreme care when removing or replacing the Upper

Cylinder Unit. Do not touch Video Heads during servicing.

1. Remove 2 Screws with Washers (A) and gently lift the

Upper Cylinder Unit from the shaft, refer to Fig. M2.

Fig. M2

Screws with Washers (A)

3. REPLACEMENT OF UPPER CYLINDER

UNIT

1. Install the Upper Cylinder Unit carefully so that the hole in

the Upper Cylinder Unit is properly matched to align the hole

on the Upper Cylinder to the center of the indentation on the

D.D. Cylinder. For details on the installation position, refer

to Fig. M4.

Fig. M4

Upper

Cylinder

D.D.

Cylinder

Hole

Indentation

-21-

C. ELECTRICAL ADJUSTMENT PROCEDURES

2. Tighten 2 Screws with Washers (A) shown in Fig. M4.

3. Clean the Upper Cylinder with a deerskin swab (Head

Cleaning Stick) saturated with Ethanol.

Note :

Upon completion of replacement, perform “TAPE

INTERCHANGEABILITY ADJUSTMENT,” Page 2-14,

especially “HORIZONTAL POSITION ADJUSTMENT

OF A/C HEAD,” Page 2-16, included in PV-M2046

Service Manual.

3. ADJUSTMENT PROCEDURES

TV STEREO AMP SECTION

SEPARATION ADJUSTMENT

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 stereophonic effect.

TP ADJ. MODE INPUT

TP4207 R9001 STOP (ANTENNA INPUT TERMINAL)

MTS (ONLY L CH)

300Hz±5Hz

14% or 7% Modulating

TAPE M.EQ. SPEC.

OSCILLOSCOPE Refer to Descriptions

MTS/SAP SIGNAL below

GENERATOR

Note :

TP4207 : Hi-Fi Audio C.B.A.

R9001 : VCR Main C.B.A.

1. Connect the RF OUTPUT of the MTS/SAP Signal

Generator to the Antenna Input Terminal.

2. Connect the Oscilloscope to TP4207(R CH).

3. Adjust R9001 on the VCR Main C.B.A. so that the signal

level is at minimum as shown in Fig. E5.

10mV 1ms

TP4207(R CH)

Minimum

Fig. E5

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Panasonic OmniVision PV-M2066 User manual

Brand: Panasonic

Model: OmniVision PV-M2066

Category: Cassette players

Type: User manual

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Panasonic OmniVision PV-M2066 User manual

Panasonic OmniVision PV-M2066 User manual

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