Panasonic VIERA TX-P42G15B User manual

Service Manual
Plasma Television
_______________________ Model No. T X - P 4 2 G 1 5 B
“ П І T X - P 4 2 G 1 5 E
GPF12DE Chassis
ORDER NO. PCZ0906097CE
A WARN NG
This service information is esigne for experience repair technicians only an is not esigne for use by the general public.
It oes not contain warnings or cautions to a vise non-technical in ivi uals of potential angers in attempting to service a pro uct.
Pro ucts powere by electricity shoul be service or repaire only by experience professional technicians. Any attempt to service
or repair the pro uct or pro ucts ealt with in this service information by anyone else coul result in serious injury or eath.
MPORTANT SAFETY NOT CE
There are special components use in this equipment which are important for safety. These parts are marke by A in the Schematic
Diagrams, Circuit Boar Diagrams, Explo e Views an Replacement Parts List. It is essential that these critical parts shoul be replace
with manufacturer's specifie parts to prevent shock, fire or other hazar s. Do not mo ify the original esign without permission of
manufacturer.
Panasonic’ © Panasonic Corporation 2009.
Unauthorize copying an istribution is a violation
of law.

TABLE OF CONTENTS PAGE
1 Safety Precautions---------------------------------------------------------------3
1.1. General Gui elines-------------------------------------------------3
1.2. Touch-Current Check-----------------------------------------------3
2 Warning-------------------------------------------------------------------------------4
2.1. Prevention of Electrostatic Discharge (ESD) to
Electrostatically Sensitive (ES) Devices ---------------------- 4
2.2. About lea free sol er (PbF)-------------------------------------5
3 Service Navigation---------------------------------------------------------------6
3.1. Service Hint-----------------------------------------------------------6
3.2. Applicable signals---------------------------------------------------7
4 Specifications --------------------------------------------------------------------- 8
5 Service Mode---------------------------------------------------------------------10
5.1. How to enter into Service Mo e-------------------------------10
5.2. Service tool mo e------------------------------------------------- 12
5.3. Hotel mo e---------------------------------------------------------- 13
6 Troubleshooting Guide------------------------------------------------------14
6.1. Check of the IIC bus lines---------------------------------------14
6.2. Power LED Blinking timing chart------------------------------15
6.3. No Power------------------------------------------------------------ 16
6.4. No Picture----------------------------------------------------------- 17
6.5. Local screen failure-----------------------------------------------18
7 Service Fixture & Tools----------------------------------------------------- 19
7.1. SC jig----------------------------------------------------------------- 19
8 Disassembly and Assembly nstructions---------------------------20
8.1. Remove the Rear cover----------------------------------------20
8.2. Remove the Fan--------------------------------------------------20
8.3. Remove the P-Boar --------------------------------------------20
8.4. Remove the Si e terminal cover an Rear terminal
cover------------------------------------------------------------------ 20
8.5. Remove the Tuner unit------------------------------------------21
8.6. Remove the XS-Boar ------------------------------------------21
8.7. Remove the А-Boar --------------------------------------------22
8.8. Remove the D-Boar --------------------------------------------22
8.9. Remove the Speakers-------------------------------------------22
8.10. Remove the Control button unit-------------------------------23
8.11. Remove the GK-Boar ------------------------------------------23
8.12. Remove the SU-Boar ------------------------------------------23
8.13. Remove the SD-Boar ------------------------------------------24
8.14. Remove the SC-Boar ------------------------------------------24
8.15. Remove the SS2-Boar ----------------------------------------24
8.16. Remove the SS-Boar ------------------------------------------25
8.17. Remove the Hanger metals an the Stan brackets — 25
8.18. Remove the C1-Boar ------------------------------------------25
8.19. Remove the C2-Boar ------------------------------------------25
8.20. Remove the Plasma panel section from the
Cabinet assy (glass)----------------------------------------------26
8.21. Remove the S-Boar --------------------------------------------26
8.22. Remove the Front glass----------------------------------------27
8.23. Remove the К-Boar --------------------------------------------27
8.24. Remove the GL-Boar ------------------------------------------27
8.25. Replace the plasma panel ------------------------------------ 28
9 Measurements and Adjustments----------------------------------------29
9.1. A justment Proce ure-------------------------------------------29
9.2. A justment
----------------------------------------------------------32
10 Block Diagram------------------------------------------------------------------- 37
10.1. Main Block Diagram----------------------------------------------37
10.2. Block (1/5) Diagram---------------------------------------------38
10.3. Block (2/5) Diagram---------------------------------------------- 39
10.4. Block (3/5) Diagram---------------------------------------------- 40
10.5. Block (4/5) Diagram-----------------------------------------------41
10.6. Block (5/5) Diagram---------------------------------------------- 42
11 Wiring Connection Diagram---------------------------------------------- 43
11.1. Caution statement.------------------------------------------------43
11.2. Wiring (1)------------------------------------------------------------43
PAGE
11.3. Wiring (2)------------------------------------------------------------44
11.4. Wiring (3)------------------------------------------------------------45
11.5. Wiring (4)------------------------------------------------------------46
11.6. Wiring (5)------------------------------------------------------------47
11.7. Wiring (6)------------------------------------------------------------48
11.8. Wiring (7)------------------------------------------------------------49
11.9. Wiring (8)------------------------------------------------------------50
11.10. Wiring (9)------------------------------------------------------------51
12 Schematic Diagram----------------------------------------------------------53
12.1. Schematic Diagram Note-------------------------------------- 53
12.2. P-Boar (1/2) Schematic Diagram
--------------------------- 54
12.3. P-Boar (2/2) Schematic Diagram --------------------------- 55
12.4. GK, GL, K, S an XS-Boar Schematic Diagram ------ 56
12.5. A-Boar (1/22) Schematic Diagram ------------------------- 57
12.6. A-Boar (2/22) Schematic Diagram ------------------------- 58
12.7. A-Boar (3/22) Schematic Diagram ------------------------- 59
12.8. A-Boar (4/22) Schematic Diagram ------------------------- 60
12.9. A-Boar (5/22) Schematic Diagram ------------------------- 61
12.10. A-Boar (6/22) Schematic Diagram ------------------------- 62
12.11. A-Boar (7/22) Schematic Diagram ------------------------- 63
12.12. A-Boar (8/22) Schematic Diagram ------------------------- 64
12.13. A-Boar (9/22) Schematic Diagram ------------------------- 65
12.14. A-Boar (10/22) Schematic Diagram ----------------------- 66
12.15. A-Boar (11/22) Schematic Diagram ----------------------- 67
12.16. A-Boar (12/22) Schematic Diagram ----------------------- 68
12.17. A-Boar (13/22) Schematic Diagram ----------------------- 69
12.18. A-Boar (14/22) Schematic Diagram ----------------------- 70
12.19. A-Boar (15/22) Schematic Diagram ----------------------- 71
12.20. A-Boar (16/22) Schematic Diagram ----------------------- 72
12.21. A-Boar (17/22) Schematic Diagram ----------------------- 73
12.22. A-Boar (18/22) Schematic Diagram ----------------------- 74
12.23. A-Boar (19/22) Schematic Diagram ----------------------- 75
12.24. A-Boar (20/22) Schematic Diagram ----------------------- 76
12.25. A-Boar (21/22) Schematic Diagram ----------------------- 77
12.26. A-Boar (22/22) Schematic Diagram ----------------------- 78
12.27. D-Boar (1/4) Schematic Diagram -------------------------- 79
12.28. D-Boar (2/4) Schematic Diagram -------------------------- 80
12.29. D-Boar (3/4) Schematic Diagram---------------------------81
12.30. D-Boar (4/4) Schematic Diagram -------------------------- 82
12.31. C1-Boar (1/2) Schematic Diagram ------------------------- 83
12.32. C1-Boar (2/2) Schematic Diagram ------------------------- 84
12.33. C2-Boar (1/2) Schematic Diagram ------------------------- 85
12.34. C2-Boar (2/2) Schematic Diagram ------------------------- 86
12.35. SC-Boar (1/4) Schematic Diagram ------------------------ 87
12.36. SC-Boar (2/4) Schematic Diagram ------------------------ 88
12.37. SC-Boar (3/4) Schematic Diagram ------------------------ 89
12.38. SC-Boar (4/4) Schematic Diagram ------------------------ 90
12.39. SS-Boar (1/2) Schematic Diagram--------------------------91
12.40. SS-Boar (2/2) an SS2-Boar Schematic
Diagram-------------------------------------------------------------92
13 Printed Circuit Board--------------------------------------------------------93
13.1. P-Boar --------------------------------------------------------------93
13.2. GK, K, S an SS2-Boar
--------------------------------------- 96
13.3. GLan XS-Boar ------------------------------------------------ 97
13.4. A-Boar --------------------------------------------------------------98
13.5. D-Boar -----------------------------------------------------------100
13.6. C1-Boar ----------------------------------------------------------102
13.7. C2-Boar ----------------------------------------------------------103
13.8. SC-Boar ---------------------------------------------------------104
13.9. SS-Boar ----------------------------------------------------------107
14 Exploded View and Replacement Parts List ------------------- 109
14.1. Explo e View an Mechanical Replacement Parts
List------------------------------------------------------------------ 109
14.2. Electrical Replacement Parts List---------------------------116
2

1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lea ress. If a short circuit is foun , replace all parts which have been overheate or
amage by the short circuit.
2. After servicing, see to it that all the protective evices such as insulation barriers, insulation papers shiel s are properly
installe .
3. After servicing, make the following leakage current checks to prevent the customer from being expose to shock hazar s.
4. When servicing, observe the original lea ress. If a short circuit is foun , replace all parts which have been overheate or
amage by the short circuit.
5. After servicing, see to it that all the protective evices such as insulation barriers, insulation papers shiel s are properly
installe .
6. After servicing, make the following leakage current checks to prevent the customer from being expose to shock hazar s.
1.2. Touch-Current Check
1. Plug the AC cor irectly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each expose metallic part on the set an a goo earth groun
such as a water pipe, as shown in Figure 1.
3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each expose metallic part, an measure the voltage at each point.
5. Reserve the AC plug in the AC outlet an repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expresse as voltage U-| an U2, oes not excee the following values:
For a. c.: U-| = 35 V (peak) an U2 = 0.35 V (peak);
For , c.: U-, = 1.0 V,
Note:
The limit value of U2 = 0.35 V (peak) for a. c. an U-| = 1.0 V for . c. correspon to the values 0.7 mA (peak) a. c. an 2.0
mA . c.
The limit value U-| = 35 V (peak) for a. c. correspon to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
7. In case a measurement is out of the limits specifie , there is a possibility of a shock hazar , an the equipment shoul be
repaire an rechecke before it is returne to the customer.
Measuring network for TOUCH CURRENTS
METAL PARTS
Resistance values in ohms (Q)
V: Voltmeter or oscilloscope
(r.m.s. or peak rea ing)
Input resistance: > 1 MQ
Input capacitance: < 200 pF
Frequency range: 15 Hz to 1 MHz an .c. respectively
NOTE - Appropriate measures shoul be taken to obtain the correct value in case of non-sinusoi al waveforms.
Figure 1
3

2 Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically
Sensitive (ES) Devices
Some semicon uctor (soli state) evices can be amage easily by static electricity. Such components commonly are calle Elec
trostatically Sensitive (ES) Devices. Examples of typical ES evices are integrate circuits an some fiel -effect transistors an
semicon uctor [chip] components. The following techniques shoul be use to help re uce the inci ence of component amage
cause by electrostatic ischarge (ESD).
1. Imme iately before han ling any semicon uctor component or semicon uctor-equippe assembly, rain off any ESD on your
bo y by touching a known earth groun . Alternatively, obtain an wear a commercially available ischarging ESD wrist strap,
which shoul be remove for potential shock reasons prior to applying power to the unit un er test.
2. After removing an electrical assembly equippe with ES evices, place the assembly on a con uctive surface such as alumi
num foil, to prevent electrostatic charge buil up or exposure of the assembly.
3. Use only a groun e -tip sol ering iron to sol er or unsol er ES evices.
4. Use only an anti-static sol er removal evice. Some sol er removal evices not classifie as [anti-static (ESD protecte )] can
generate electrical charge sufficient to amage ES evices.
5. Do not use freon-propelle chemicals. These can generate electrical charges sufficient to amage ES evices.
6. Do not remove a replacement ES evice from its protective package until imme iately before you are rea y to install it. (Most
replacement ES evices are package with lea s electrically shorte together by con uctive foam, aluminum foil or compara
ble con uctive material).
7. Imme iately before removing the protective material from the lea s of a replacement ES evice, touch the protective material
to the chassis or circuit assembly into which the evice will be installe .
Caution
Be sure no power is applie to the chassis or circuit, an observe all other safety precautions.
8. Minimize bo ily motions when han ling unpackage replacement ES evices. (Otherwise ham less motion such as the brush
ing together of your clothes fabric or the lifting of your foot from a carpete floor can generate static electricity (ESD) sufficient
to amage an ES evice).
4

2.2. About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
n the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This mo el uses Pb Free sol er in it’s manufacture ue to environmental conservation issues. For service an repair work, we’
suggest the use of Pb free sol er as well, although Pb sol er may be use .
PCBs manufacture using lea free sol er will have the PbF within a leaf Symbol PbF stampe on the back of PCB.
Caution
• Pb free sol er has a higher melting point than stan ar sol er. Typically the melting point is 50 ~ 70 °F (30-40 °С) higher. Please
use a high temperature sol ering iron an set it to 700 ± 20 °F (370 ± 10 °С).
• Pb free sol er will ten to splash when heate too high (about 1100 °F or 600 °С).
If you must use Pb sol er, please completely remove all of the Pb free sol er on the pins or sol er area before applying Pb sol
er. If this is not practical, be sure to heat the Pb free sol er until it melts, before applying Pb sol er.
• After applying PbF sol er to ouble layere boar s, please check the component si e for excess sol er which may flow onto the
opposite si e, (see figure below)
component component
remove all of the ^ІП\
excess sol er '
\
sol er
Suggested Pb free solder
There are several kin s of Pb free sol er available for purchase. This pro uct uses Sn+Ag+Cu (tin, silver, copper) sol er. How
ever, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) sol er can also be use .
0.3mm X lOOg 0.6mm X lOOg l .0mm X lOOg
5
www.panatex.com.ua

3 Service Navigation
3.1. Service Hint
Remove the Rear cover
(2) (1) (1)(2)
Remove:
2screws (1) THEL052Z
11 screws (2) XTB4+12GFJK
11 screws (3) THEL0429
Boar Name Function Boar Name Function
P Power Supply C1 Data Driver (Lower Right)
A DC-DC Converter, Tuner
Speaker out, AV Terminal, AV Switch, PC
Digital Signal Processor, SYSTEM MPU, HDMI Switch
Peaks-AVC, Ethernet
C2 Data Driver (Lower Left)
SC Scan Drive
SS Sustain Drive
SS2 Sustain out (Lower)
D Format Converter, Plasma Al, Sub-Fiel Processor SU Scan out (Upper)
Non-serviceable.
SU-Boar shoul be exchange for service.
XS Sat Tuner
GL SD LED
К Remote receiver, Power LED, CA.T.S. sensor SD Scan out (Lower)
Non-serviceable.
SD-Boar shoul be exchange for service.
S Power Switch
GK Key Switch
6

3.2. Applicable signals
COMPONENT (Y, PB, PR), HDM
* Mark: Applicable input signal for Component (Y, PB, PR) an HDMI
Signal name COMPONENT HDMI
525 (480) / 60І * *
525 (480) / 60p * *
625 (576) / 50І * *
625 (576) / 50p * *
750 (720) / 60p * *
750 (720) / 50p * *
1,125 (1,080) / 60І * *
1,125 (1,080) / 50І * *
1,125 (1,080) / 60p *
1,125 (1,080) / 50p *
1,125 (1,080) / 24p *
PC (from D-sub 15P)
Applicable input signal for PC is basically compatible to VESA stan ar timing.
Signal name Horizontal frequency (kHz) Vertical frequency (Hz)
640 x 400 @70 Hz 31.47 70.07
640 x 480 @60 Hz 31.47 59.94
640 x 480 @75 Hz 37.50 75.00
800 x 600 @60 Hz 37.88 60.32
800 x 600 @75 Hz 46.88 75.00
800 x 600 @85 Hz 53.67 85.06
852 x 480 @60 Hz 31.44 59.89
1,024 x 768 @60 Hz 48.36 60.00
1,024 x 768 @70 Hz 56.48 70.07
1,024 x 768 @75 Hz 60.02 75.03
1,024 x 768 @85 Hz 68.68 85.00
1,280 x 768 @60 Hz 47.70 60.00
1,280 x 1,024 @60 Hz 63.98 60.02
1,366 x 768 @60 Hz 48.39 60.04
Macintosh 13 inch (640 x 480) 35.00 66.67
Macintosh 16 inch (832 x 624) 49.73 74.55
Macintosh21 inch (1,152 x 870) 68.68 75.06
PC (from HDM terminal)
Applicable input signal for PC is basically compatible to HDMI stan ar timing.
Signal name Horizontal frequency (kHz) Vertical frequency (Hz)
640 x 480 @60 Hz 31.47 60.00
750 (720) / 60p 45.00 60.00
1,125 (1,080) / 60p 67.50 60.00
Note
• Signals other than above may not be isplaye properly.
• The above signals are reformatte for optimal viewing on your isplay.
• PC signal is magnifie or compresse for isplay, so that it may not be possible to show fine etail with sufficient clarity.
7

4 Specifications
Power Source
Power Consumption
Power Consumption in Standby condition
Display panel
Aspect Ratio
Visible screen size
Number of pixels
Sound Speaker
Audio Output
Headphones
PC signals
Receiving Systems / Band name (B only)
Receiving Systems / Band name (E only)
Satellite dish input
AC 220-240 V, 50 / 60 Hz
350 W
0.4 W (Without monitor out recor ing)
32 W (With monitor out recor ing)
16:9
106 cm ( iagonal) 921 mm (W) x 518 mm (H)
2,073,600 (1,920 (W) x 1,080 (H)) [5,760 x 1,080 ots]
140 mm x 35 mm x 2 pcs, 6 Q
20 W ( 10 W + 10 W ), 10% THD
М3 (3.5 mm) stereo mini Jack x 1
VGA, SVGA, WVGA, XGA
SXGA, W XGA ...... (compresse )
Horizontal scanning frequency 31 - 69 kHz
Vertical scanning frequency 59 - 86 Hz
DVB-S / S2
(freesat Other S a t.):
DVB-T:
PAL :
PAL 525/60 :
M.NTSC :
NTSC (AV input only ):
freesat services via Satellite ish input.
Receiver frequency range - 950 MHz to 2,150 MHz
LNB Power an Polarisation - Vertical: +13 V
Horizontal: +18 V
Current: Max. 500 mA
(overloa protection)
22 kHz Tone - Frequency: 22 kHz ± 2 kHz
Amplitu e: 0.6 V ± 0.2 V
Symbol Rate - Max. 30 MS/s
FEC Mo e -1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
Demo ulation - QPSK, 8PSK
Not available for DiSEqC control.
Digital terrestrial services via UHF aerial input.
UHF E21-68
Playback of NTSC tape from some PAL Vi eo recor ers (VCR)
or NTSC isc playback from DVD player an recor er.
Playback from M.NTSC Vi eo recor ers (VCR).
Playback from NTSC Vi eo recor ers (VCR).
PALB, G, H, , V H FE 2-E 12
SECAM B, G, SECAM L, L’ : VHF H1 - H2 (ITALY)
V H FA -H (ITALY)
UHF E21 - E69
CATV (S01 - S05)
CATVS1 -S10(M1 -M 10)
CATVS11 - S20 (U1 - U10)
CATV S21 - S41 (Hyperban )
PAL D, K, SECAM D, К : VHF R1 - R2
VHF R3- R5
VHF R6- R12
UHF E21 - E69
Playback of NTSC tape from some PAL Vi eo recor ers (VCR)
Digital terrestrial services
Digital cable services
Digital satellite services
Receiver frequency range - 950 MHz to 2,150 MHz
LNB Power an Polarisation - Vertical: +13 V
Horizontal: +18 V
Current: Max. 500 mA
(overloa protection)
22 kHz Tone - Frequency: 22 kHz ± 2 kHz
Amplitu e: 0.6 V ±0.2 V
Symbol Rate - Max. 30 MS/s
FEC Mo e - 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
Demo ulation - QPSK, 8PSK
DisEqC - Version 1.0
Playback from M.NTSC Vi eo recor ers (VCR).
NTSC (AV input only ): Playback from NTSC Vi eo recor ers (VCR).
• TV signals may not be receive in some areas.
Female F-type 75 Q
PAL 525/60 :
DVB-T :
DVB-C :
DVB-S / S2 :
M.NTSC :
8

Aerial input
Operating Conditions
Connection Terminals
AV1 (Scart terminal)
AV2 (Scart terminal)
AV3 V DEO
S-V DEO
AUD O L - R
COMPONENT
V DEO
AUD O L - R
Others
HDM 1 /2/3/4
PC
Card slot
ETHERNET
Output
AUD O L - R
D G TAL AUD O OUT
Dimensions (W x H x D)
Mass
Note
UHF (B only), VHF/UHF (E only)
Temperature:
Humi ity: 0 °С -35 °С 20 % - 80 % RH (non-con ensing)
21 Pin terminal (Au io/Vi eo in, Au io/Vi eo out, RGB in, Q-Link)
21 Pin terminal (Au io/Vi eo in, Au io/Vi eo out, RGB in, S-Vi eo in, Q-Link)
1.0 V [p-p] (75 Q)
Y:1.0 V [p-p] (75 Q) C:0.286 V [p-p] (75 Q)
0.5 V [rms]
1.0 V [p-p] (inclu ing synchronization)
± 0.35 V [p-p]
0.5 V [rms]
RCA PIN Type x 1
Mini DIN 4-pin
RCA PIN Type x 2
Y
Pb, Pr
RCA PIN Type x 2
TYPE A Connectors HDMI™ (Version 1,3a with Deep Colour x.v.Colour™)
• This TV supports [HDAVI Control 4] function.
HIGH-DENSITY D-SUB 15PIN R, G, В /0.7 V [p-p] (75 Q)
HD, VD/TTL Level 2.0 - 5.0 V [p-p] (high impe ance)
SD Car slot x 1
RJ45, IEEE802.3 10BASE-T/ 100BASE-TX
RCA PIN Type x 2 0.5 V [rms] (high impe ance)
PCM / Dolby Digital, Fiber optic
1.029 mm x 702 mm x 332 mm (With Pe estal)
1.029 mm x 661 mm x 97 mm (TV only)
27.0 kg Net (With Pe estal)
25.0 kg Net (TV only)
1 Design an Specifications are subject to change without notice. Mass an Dimensions shown are approximate.
1 This equipment complies with the EMC stan ar s liste below.
EN55013, EN61000-3-2, EN61000-3-3, EN55020, EN55022, EN55024.
9

5 Service Mode
5.1. How to enter into Service Mode
While pressing [VOLUME (-)] button of the main unit, press [0] button of the remote control three times within 2 secon s.
Software version ■ 1
Picture adjustment ----------
White balance adjustment
Option setting -----------------
Agig -------------------------------
Service tool
SERV CE
ADJUST
WB-ADJ
OPT ON
AG NG
SRV-TOOL
Peaks SOFT *,*** OPT ON 1 1c
Peaks EEP OPT ON 2 ef
LS DATA OPT ON 3 01
STBY SOFT Model D 05
STBY EEP 02203100
STBY ROMCOR 00000040
PDP SOFT RB Cn+ 000
PDP EEP
PDP FPGA
PDP PDROM
Press
[1]
Button
Sub tem
1 1
Ia d ju s t " І '
'CONTRAST і 'OOOOi
YMAX
5.1.1. Key command
[1] button...Main items Selection in forwar irection
[2] button...Main items Selection in reverse irection
[3] button...Sub items Selection in forwar irection
[4] button...Sub items Selection in reverse irection
[RED] button...All Sub items Selection in forwar irection
[GREEN] button...All Sub items Selection in reverse irection
[VOL] button...Value of sub items change in forwar irection ( + ), in reverse irection (-)
10