Panasonic TX-14B4T / TX-14B4B / TX-14B4TL / TC-14B4R / TC-14B4B Service Manual ▷ View online
ALIGNMENT PROCEDURE AND OPTION SETTING
Entering SERVICE mode
Service mode is entered by selecting the “mute” remote key and local “down” simultaneously with the sharpness DAC set to
Minimum and programme position 99 selected.
Service mode 2 is selected by pressing the Recall remote key while in service mode 1.
Service mode navigation
- Up /Down remote keys :cycle through the service items available.
- -/+ remote keys :Decrement/Increment the values within range.
- TV/AV :Store the current data.
- 0 – 7 digit keys :Toggle bits 0-7 in option byte (service mode 2).
Service mode is entered by selecting the “mute” remote key and local “down” simultaneously with the sharpness DAC set to
Minimum and programme position 99 selected.
Service mode 2 is selected by pressing the Recall remote key while in service mode 1.
Service mode navigation
- Up /Down remote keys :cycle through the service items available.
- -/+ remote keys :Decrement/Increment the values within range.
- TV/AV :Store the current data.
- 0 – 7 digit keys :Toggle bits 0-7 in option byte (service mode 2).
Order
Item
Range
1
Cut off (VG2)
LED ON , LED OFF
2
Vertical slope
0-63
3
Vertical Shift
0-63
4
Vertical amplitude
0-63
5
Horizontal shift
0-63
6
Red Cut
0-63
7
Green Cut
0-63
8
Red Drive
0-63
9
Green Drive
0-63
10
Blue Drive
0-63
11
AGC
0-63
12
Sub-Colour
0-63
13
Sub-Brightness
0-63
Sub-Colour:
Set sub-colour to 16.
Sub-Brightness:
Set sub-colour to 33.
G2 alignment:
Before entering into service mode, recall the nominal picture setting :remote key “N”.
From this setting, increase brightness by 11 steps and reduce sharpness to minimum.
Tune a colour bar signal on Prg 99 and enter into SVC mode. In SVC mode , select “G2” item
and press – or + remote key to control software disable vertical deflection. The user must then
adjust G2 voltage on FBT, to find the point where LED is ON. Press – or + remote key to return
to normal SVC mode.
From this setting, increase brightness by 11 steps and reduce sharpness to minimum.
Tune a colour bar signal on Prg 99 and enter into SVC mode. In SVC mode , select “G2” item
and press – or + remote key to control software disable vertical deflection. The user must then
adjust G2 voltage on FBT, to find the point where LED is ON. Press – or + remote key to return
to normal SVC mode.
White balance:
- Select a dark picture and adjust Red Cut and Green Cut to the desired colour temperature.
- Select a bright picture, set Blue Drive to 32 and adjust Red Drive, and Green Drive to the
desired colour temperature.
- Select a bright picture, set Blue Drive to 32 and adjust Red Drive, and Green Drive to the
desired colour temperature.
4
8
CIRCUIT BLOCK DIAGRAM
PARTS LOCATION
7
16
6
5
10
13
12
9
14
11
7
2
1
15
NOTE:
The numbers on the exploded view below
refer to the mechanical section of the
Replacement Parts List.
The numbers on the exploded view below
refer to the mechanical section of the
Replacement Parts List.
4
3
Components Identified by mark have special characteristics important for safety.
* When replacing any of these components, use only manufacturers specified parts.
In case of ordering these spare parts, please always add the complete Model-Type
number to your order.
* When replacing any of these components, use only manufacturers specified parts.
In case of ordering these spare parts, please always add the complete Model-Type
number to your order.
REPLACEMENT PARTS LIST
Important Safety Notice
Description
Cct Ref
Parts Number
Description
Cct Ref
Parts Number
COMMON PARTS
EXPLODED VIEW
PANASONIC BADGE
1
4855623201
SPEAKER
2
4858314010
E P.C.B.
3
4859804593
AC POWER CORD
4
4859906310
F.B.T.
5
50H0000211
C.R.T
6
A34EAC01X06
DEGAUSS COIL
7
DC-1450
TUNER
8
UV1316/A
MISCELLANEOUS COMPONENTS
CUSHION
.
4858191200
BATTERY PACK
.
UM-3DJ-2P
CRT SOCKET
SCT1
PCS633A
I.C.s
VERTICAL AMPLIFIER
I301
TDA8357J
MONO AMPLIFIER
I601
TDA7267A
I.R. RECEIVER
I703
KRT30
POWER SUPPLY SWITCHING
I801
STRF6653
OPTO COUPLER
I804
KP1010C
ERROR AMPLIFIER
I806
SE110N
5V REGULATOR
I820
KA7805
8V REGULATOR
I822
KA7808
3.3V REGULATOR
I823
LP295033
RGB OUTPUT
I901
TDA6107Q
FUSES
FUSE 4A250V
F801
5FSCB4022R
FUSE
G900
4SG0D00103
DIODES
DIODE
D313
DBYW36
DIODE
D341
DUZ33B
DIODE
D350
DTZX12C
DIODE
D360
DTZX22C
DIODE
D361
DUZ33B
DIODE
D403
BY228
DIODE
D405
DBYW36
DIODE
D407
DBYW36
DIODE
D408
DBYW36
DIODE
D450
DBYW36
DIODE
D510
DTZX3V9B
DIODE
D511
DTZX3V9B
DIODE
D520
1N4148
DIODE
D521
1N4148
LED
D707
DSML1216W
DIODE
D710
DTZX5V1B
DIODE
D801
DBYT51J
DIODE
D802
DBYT51J
DIODE
D803
DBYT51J
DIODE
D804
DBYT51J
DIODE
D805
DBYW36
DIODE
D806
DBYW36
DIODE
D808
DBYW36
DIODE
D809
DBYW36
DIODE
D810
DBYW36
DIODE
D811
DTZX5V6B
DIODE
D820
DBYW76
DIODE
D821
DBYW36
DIODE
D822
DTZX9V1B
DIODE
D824
1N4148
DIODE
D825
1N4148
DIODE
D830
DBYW36
DIODE
D831
DBYW36
DIODE
D840
1N4148
DIODE
D841
1N4148
DIODE
D860
DBYW36
DIODE
D904
DBAV21
DIODE
D905
DBAV21
DIODE
D906
DBAV21
DIODE
DA02
DTZX12C
DIODE
DA05
DTZX5V6B
DIODE
DA06
DTZX5V6B
DIODE
DA08
DTZX5V6B
DIODE
DA09
DTZX5V6B
DIODE
DA10
DTZX5V6B
DIODE
DA11
DTZX5V6B
DIODE
DA27
DTZX5V6B
THYRISTOR
I810
TX0202DA
DIODE
R801
DT122B8010
TRANSISTORS
TRANSISTR
Q101
2SC5343Y
TRANSISTOR
Q401
2SD2499
TRANSISTR
Q402
2SD1207
TRANSISTR
Q501
2SA1980Y
TRANSISTR
Q502
2SC5343Y
TRANSISTR
Q503
2SC5343Y
TRANSISTR
Q510
2SA1980Y
TRANSISTR
Q511
2SA1980Y
TRANSISTR
Q520
2SC5343Y
TRANSISTR
Q807
2SC5343Y
TRANSISTR
Q808
2SC5343Y
TRANSISTR
Q809
2SC5343Y
TRANSISTR
Q810
2SC5343Y
TRANSISTR
Q811
2SC5343Y
TRANS SMS
T801
50M3535A1
TRANSFORMERS
TRANSFORMER
T401
50D10A2
8
