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SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter the Service Mode, press both set key and remote control key for more than 2 seconds.
Set Key Remocon Key Operations
Reset the user setting items (PICTURE, VOLUME and LANGUAGE) to the initial state
VOL. (-) MIN 0
for delivery.
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
VOL. (-) MIN 1
If you set a factory initialization, the memories are reset such as the
channel setting, and the POWER ON total hours.
POWER ON total hours is displayed on the screen.
Refer to the "CONFIRMATION OF HOURS USED".
VOL. (-) MIN 6
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Writing of EEPROM initial data.
VOL. (-) MIN 8
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
VOL. (-) MIN 9
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to "0".
1. Set the VOLUME to minimum. ADDRESS DATA
2. Press both VOL. DOWN button on the set and Channel
button (6) on the remote control for more than 2 seconds.
3. After the confirmation of using hours, turn off the power. INIT 01 00 Initial setting content of MEMORY IC.
CRT ON 0010 POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
FIG. 1 + (ones digit value)
WHEN REPLACING EEPROM (MEMORY) IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to TABLE 1.
NOTE: No need setting for after INI 16 due to the adjustment value.
INI +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
00 --- 00 38 23 18 71 81 60 66 4E 73 07 03 00 06 73
10 10 00 90 90 90 BC 40 --- --- --- --- --- --- --- --- ---
Table 1
1. Enter DATA SET mode by setting VOLUME to minimum.
2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.
ADDRESS and DATA should appear as FIG 1.
3. ADDRESS is now selected and should "blink". Using the VOL. +/- button on the remote, step through the ADDRESS until
required ADDRESS to be changed is reached.
4. Press OK to select DATA. When DATA is selected, it will "blink".
5. Again, step through the DATA using VOL. +/- button until required DATA value has been selected.
6. Pressing OK will take you back to ADDRESS for further selection if necessary.
7. Repeat steps 3 to 6 until all data has been checked.
8. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
After the data input, set to the initializing of shipping.
9. Turn POWER on.
10.Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
11.After the finishing of the initializing of shipping, the unit will turn off automatically.
The unit will now have the correct DATA for the new MEMORY IC.
C-1
BLOCK DIAGRAM
VOL DOWN
MICON W/T.TEXT IC TU001
IC101 OECF013B VOL UP
Q102 SCL SDA BPL AGC IF
LED DRIVE 49 ON_TIMER CH DOWN
4 5 7 1 11
Q103
KEY_IN 56 CH UP
LED DRIVE 9 STANDBY LED I2C
ON TIMER P.CON+5V
D103
STAND BY/P.ON MEMORY IC
SDA 19 5 SDA CHROMA IC
D101 39 AVDD1 IC199
SCL 20 6 SCL S-24C16AFJA-TB-01 IC201 STV2248E V-DRIVE
31 AVDD2 8 1 2 6 7 IC401 TDA8174A
OSD-B 15 34 OSD-B
RF_AGC_OUT
SIFIN1
PIFIN2
PIFIN1
SIFIN2
AT+5V 25 AVDD3 Vs 10
OSD-G 16 35 OSD-G P.CON+25V
OSD-R 17 36 OSD-R POWER OUTPUT 1
OS101 1 DY
1 REMORT VERT 47 3 TRIGGER INPUT
CVBS2 33 29 CVBSOUT1
SCL 51 I2C
50 OSC_OUT CVBS1 34 39 XTAL2
X101 X602 SDA 52 Q402 Q401 FB401
AV1 42 40 XTAL1
4MHz 3.579545MHz
X601 H_OUT 48 H.DRIVE H.OUTPUT 1 2 +B
51 OSC_IN J801
4.433619MHz B.OUT 30 3
12 VCC_IF Q802, Q806 P.CON+25V
G.OUT 31 BLUE AMP 11 F F
P.CON+5V 53 VCC_D
R.OUT 32 Q803, Q805
P.CON+8V 45 VCC1
GREEN AMP 6 7 S HV
A2/NICAM/DOLBY IC 17 VCC2 R_EXT/V_EXT 27
IC902 MSP3410G-QA-B8 Q801, Q804
G_EXT/Y_EXT 26
RED AMP 8
ANA_IN1+ 67 11 FM_OUT B_EXT/U_EXT 25 CRT
71 XTAL_IN
X901 SC1_OUT_R 36 Y/CVBS_IN3 22 V801
18.432MHz
SC1_OUT_L 37 CVBSOUT2 44 VIDEO_SW IC
72 XTAL_OUT IC702 MM1501XNRE
SC2_OUT_R 33 INT_CVBS_OUT 13
P.CON+5V 11 DVSUP SC2_OUT_L 34 CVBSIN2 20 2 OUT
66 AVSUP SC1_IN_R 57 6 IN1
SC1_IN_L 56 1 SW
I2C 2 12C_CL
SC2_IN_R 54 4 IN2
3 12C_DA J701
SC2_IN_L 53
P.CON+8V 39 AHVSUP R OUT VIDEO OUT
SC3_IN_L 50 1 19
L OUT VIDEO IN
SC3_IN_R 51 3 20
R OUT VIDEO OUT FRONT VIDEO
DACM_R
DACM_L
22 40 J703
L OUT VIDEO IN
24 41 3
R IN 21-B IN 1
2 7 2
28 27 L IN 21-G IN
6 11
R IN 21-R IN FRONT AUDIO L
23 15 J704
L IN
27 3
1
2
FRONT AUDIO R
J705
SOUND+B
3
1
7 2
2 SW TRANS
T501 Q501
L R 3
HEADPHONE JACK
12 5 J702 5 D POWER
2 5 10 7
SOUND AMP IC
IC1002 AN5276 VCC 1 9 SOUND+B
+ +
12 +B
+ 15 P.CON+8V
- R
SPEAKER 16 AT+5V
+ SP351
L P.CON+5V
-
E-1 E-2
A B C D E F G H
MICON/TUNER SCHEMATIC DIAGRAM
(MAIN PCB) TU001 TUWRF4EG-778F2A
3 ADRES
8 8
5 SDA
1 AGC
7 BPL
4 SCL
15
13
9 BTL
6 V.S
OS101
11 IF
LED DRIVE
10
ON TIMER RPM7138-H5
2
8
Q102
D103
14
12
2SA1037AK R137
ACCESSORY
1 Vout
2 GND
NC
NC
NC
NC
0
31.4
R104 R103 R102 R101
5.0
4.9
4.9
1.8
NC
3 B+
3.6 3.1 180 UM-4
LTL-1CHGE-002A
50V 1 KA
2.2K 1.2K 820 390 0 LED DRIVE
GREEN STAND BY/P.ON BT001
Q103
2.2K 1/4W
R003 0.01 B
D101 CP001
C007
VOL DOWN
2SA1037AK R132 4.9 0 4.9
EVQ21505R
EVQ21505R
EVQ21505R
EVQ21505R
CH DOWN
B
MTZJ33B
82K
003P-2100
SW106
SW107
SW102
SW104
VOL UP
270 1/4W
R03(AB)2PXGPI
R109
CH UP
3.7 0.0 C122
0.022
560
1.5K 1/4W
SLR-342VCT32
470 YK
4.9
R136
RED UM-4
C003_1
R005
16V 10 KA
100P CH
C002
TM101 BT002
1.5K 1/4W
270 1/4W
C006