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

Model
E3 E3D Chassis
Pages
20
Size
259.93 KB
Type
PDF
Document
Other Service Manuals
Brand
Device
TV / E3/E3D
File
e3-e3d-chassis.pdf
Date

View Panasonic E3 / E3D / Chassis Other Service Manuals online

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
1.
MICRO PROCESSOR UNIT .......................................................................................................... 3
2.
SINGLE ABL ................................................................................................................................ 7
3.
SHADING..................................................................................................................................... 8
4.
PREVENTION OF PROJECTION TUBE BURN-OUT .................................................................... 8
5.
SINGLE COLOUR MODE ............................................................................................................. 9
6.
FAN CONTROL ............................................................................................................................ 9
7.
PROTECTION .............................................................................................................................10
8.
DIGITAL CONVERGENCE ..........................................................................................................14
   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.
AD input
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.
MN102L35GTR
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  • Parts list (bill of materials).