E3, E3D, Chassis - Panasonic TV Other Service Manuals (repair manual)

ORDER NO. ITD0008008C3

VOL. 3 - 42

Video Projection System

E3/E3D   CHASSIS

CIRCUIT EXPLANATIONS

2

FORWARD
We would like to express our sincere gratitude for your outstanding efforts in selling and servicing Panasonic Colour
Televisions.  We are convinced that you have and will continue to make your best efforts to improve your engineering
techniques, and to obtain the highest results in your daily servicing.
We are now introducing this "Technical Guide" to assist you and make your servicing tasks easier and more rapid.
This Technical Manual focuses on an explanation of the new circuit technology employed in the E3D Chassis used in our
Video Projection System Television.  Please see the service manuals for details concerning the circuits and adjustment
methods.
The  E3D/E3 Chassis is for a video projector, and is based on the MD2/MD2L Chassis.

CONTENTS

   WARNING

T h i s   s e r v i c e   i n f o r m a t i o n   i s   d e s i g n e d   f o r   e x p e r i e n c e d   r e p a i r   t e c h n i c i a n s   o n l y   a n d   i s   n o t   d e s i g n e d   f o r
u s e   b y   t h e   g e n e r a l   p u b l i c .       I t   d o e s   n o t   c o n t a i n   w a r n i n g s   o r   c a u t i o n s   t o   a d v i s e   n o n - t e c h n i c a l   i n d i v i d u a l s
o f   p o t e n t i a l   d a n g e r s   i n   a t t e m p t i n g   t o   s e r v i c e   a   p r o d u c t .     P r o d u c t s   p o w e r e d   b y   e l e c t r i c i t y   s h o u l d   b e
s e r v i c e d   o r   r e p a i r e d   o n l y   b y   e x p e r i e n c e d   p r o f e s s i o n a l   t e c h n i c i a n s .       A n y   a t t e m p t   t o   s e r v i c e   o r   r e p a i r
t h e   p r o d u c t   o r   p r o d u c t s   d e a l t   w i t h   i n   t h i s   s e r v i c e   i n f o r m a t i o n   b y   a n y o n e   e l s e   c o u l d   r e s u l t   i n   s e r i o u s
i n j u r y   o r   d e a t h .

!

3

1. 

Micro Processor Unit

Part No. : MN102L35GTR1

Main Feature

1

100/120Hz interlaced scan

2

Digital picture noise reduction

3

Multi PIP

4

Y/Pb/Pr Component Video input

5

Child lock

6

OSD(English / Chinese / Russia/ Arabic)

7

Game

MPU(IC1101)  of E3D chassis uses same as MD2 chassis’s
device(MN102L35GTLJ).
The difference points are as below.

Pin No.

E3D

MD2

11

FAN IN

Prog/FF

15

Not used

Sound Mute

29

Sound Mute

H-Frequency

30

Conver In

V-Frequency

48

FAN

YM

53

GAME IN

PC state

Pin No. 2 & 3
These bus lines are used for optical circuit control of
projection TV.  MD2 chassis has 3 bus line, E3D chassis is
operated by 3 bus lines, too.

Pin No. 30 (CONVER IN)
During the digital convergence mode, digital convergence
circuit is operated by SUB MPU(IC7106).
During that time, Main MPU(IC1101) is stopped by Hi
voltage applies to pin No.30  of Main MPU.

voltage(V)

0.000-

0.754-

1.354-

1.954-

2.554-

3.154-

3.754-

4.354-

pin

0.508

1.108

1.708

2.308

2.908

3.508

4.108

5.000

4

AD0

SYNC IN

SYNC
NO

SYNC YES

5

AD1

AFC1 voltage

AFC Voltage (main Tuner)

6

AD2

AFC2 voltage

AFC Voltage (Sub Tuner)

7

AD3

Protect input

OFF(normal)

Hold down

Shut down

Abnormal Power

10

AD6

KEY in

CH
down

CH up

VOL down VOL up

TV/AV

Preset

Display

No input

4

GND

OSC2

OSC1

VDD

SCL2

SDA2

TEXT ENA

RESET ENAB

5V DET

RESET

PC STATE

VDD

GAME

FAN OUT

VREF

IREF

COMP

B

G

R

YS

/RST-DEV

/H SYNC

GND

SEARCH&SYNC

SCL3

SOUND AI

RMT IN

SDA1

SCL1

SYNC1

AFC1

AFC2

PROTECT

RMT IN

KEY IN

FAN IN

LED

RF AGC1

SIF1

SIF2

VIDEO GAIN

VCR/GAME

VDD

SOUND DEFEAT

CVBS

RELAY

SRQ

SOUND MUTE

BEAM SW

SDA3

CONVER IN

64

63

62

61

60

59

58

57

56

55

45

46

47

48

49

50

51

52

53

54

44

34

35

36

37

38

39

40

41

42

43

33

VSS

OSC2

OSC1

VDD

P57

P56

P55

P54

/IRQ0

 /VSYNC

/RST

P50

/TEST

VCOI

AVDD

P61

VREF

IREF

COMP

YS

P44

H SYNC

VSS

OSDXI

OSDXO

P40

P37

P41

PDO

/V SYNC

AVDD

VCOI

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

21

31

30

29

28

27

26

25

24

23

22

32

RMIN

SDA1

SCL1

ADIN0

ADIN1

ADIN4

ADIN3

RMIN

ADIN6

ADIN7

P13

P14

PWM0

P17

P21

PWM5

P23

SP24

VDD

CVBS0

P31

P32

P33

P35

P36

P34

P20

M_SOUND _MUTE

DAF. SW.