REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 20 February 2019

PANASONIC CT20R6E CT20G6E SERVICE MODE ADJUSTMENTS

PANASONIC CT20R6E CT20G6E SERVICE MODE ADJUSTMENTS



TO ENTER SERVICE MODE

  1. Select "Set-Up" icon and select 'Cable' mode.
  2. Select "Timer" icon and set 'Sleep Time' to '30 minutes.
  3. Press "Action" button two times, to Exit menus.
  4. Tune to channel [124].
  5. Adjust 'Volume" to minimum [0].
  6. Press the "Volume ( < ) button" on the 'TV'.
  7. A Red "CHK"appears in upper corner.
  8. Press 'Power" button on the remote control to select one of Service Adjustment Modes.
  9. To 'Exit' Service adjustment Mode, press the "Action" & "Power" buttons on the TV set simultaneously.  The receiver momentary shuts OFF, and comes back on tuned to channel '3' with a preset level of sound.  any programmed channels, channel caption data and some other user defined settings will be erased.
SERVICE ADJUSTMENT MODES
  • B = Service VCJ SUB-DATA adjustments.
  • C = Service VCJ CUT-OFF adjustments.
  • S = Service Options [Picture] adjustments.
  • M = Service MTS adjustments.
  • P = Service PCJ adjustments.
  • X = Service AFC adjustments.
  • 'CHK" = Normal operation of channe 'Up / Dn' and 'Vol Up / Dn'
Sub-data adjustment

Adj: range
Default value

B0
SUB-COLOR
0-127
33
B1
SUB-TINT
0-127
36
B2
SUB-BRIGHNESS
0-255
127
B3
SUB-CONTRAST
0-127
20
B4
R-OFFSET
FIXED
0
B5
Y NOISE REDUCTION
FIXED
0
B6
Y NR LIMIT
FIXED
0



CUT-OFF ADJUSTMENT

ADJUST RANGE
DEFAULT LEVEL



C0
CUT OFF R
0-225
1-255
0
255


C1
CUT OFF G
0-255
1-255
0
255


C2
CUT OFF B
0-255
1-255
0
255


C3
DRIVE R
0-127
80


C4
DRIVE B
0-127
80


C5
DRIVE G
0-127
80


C6
VERTICAL SIZE
0-255
127


C7
NOT USED
N/A
N/A


C8
NOT USED
N/A
N/A


C9
HORIZONTAL CENTER
0-31
16


Ca
BEAM LIMIT
0-1
1


Cb
HHS
0-7
0


Cc
OSD SHIFT
FIXED
88


Cd
ACL REF
FIXED
74



Ce
ACL REF
FIXED
64
Cf
ACL REF
FIXED
48
10
ACL REF
FIXED
40
11
ACL REF
FIXED
31
12
ACL REF
FIXED
20
13
ACL COEFFICIENT
FIXED
124
14
ACL COEFFICIENT
FIXED
117
15
AC COEFFCIENT
FIXED
94
16
ACL COEFFICIENT
FIXED
80
17
ACL WAIT
FIXED
2
18
ACL THRESH
FIXED
9
19
MACROVISION
FIXED
3
1A
OSD SELECT
FIXED
1
1B
KILLER ON
FIXED
6
1C
KILLER OFF
FIXED
20
1D
KILLER TIMER
FIXED
3
1E
ACC THRESH
FIXED
17
1F
ACC OFF
FIXED
7
20
MUTE TIME
FIXED
11











MTS ADJUSTMENT


ADJ. RANGE
DEFAULT LEVEL
M0
INPUT LEVEL
0-63
33
M1
HIGH-LEVEL SEPERATION
0-63
25
M2
LOW-LEVEL SEPERATION
0-15
6
M3
AGC
FIXED
0

OPTIONS [PICTURE] ADJUSTMENT


ADJUST RANGE
DEFAULT LEVEL
S0
SHARPNESS PW
FIXED
3
S1
SHARPNESS OW
FIXED
3
S2
HALF TONE
FIXED
0
S3
TV C
FIXED
0
S4
TV Y
FIXED
0
S5
GAMMA
FIXED
13
S6
VIDEO Y
FIXED
0
S7
VIDEO C
FIXED
0
S8
COMB BPF
FIXED
0
S9
COMB 2D
FIXED
1
SA
COLOR KILLER LEVEL
FIXED
0
SB
PLL KILLER TRESH
FIXED
0
SC
ACC SW
FIXED
0
SD
ACC AMP OFF 1
FIXED
100
SE
ACC AMP OFF 2
FIXED
0
SF
ACC AMP ON
FIXED
20
10
ACC AMP CTL
FIXED
3
11
BGP POSITION ©
FIXED
21
12
OSD R
FIXED
30
13
OSD G
FIXED
30
14
OSD B
FIXED
30
15
NOISE KILLER TIME
FIXED
5
16
NOISE KILLER
FIXED
50
17
HV TIMING
FIXED
2


AFC ADJUSTMENT

ADJ: RANGE
W/FM | WO/FM

X0
AFC T
0-127
83 | 60
X1
AFC B
0-127
44 | 29
X2
AFC C
0-127
64 | 42
X3
CLOCK
0-255
128 | 128