Sharp 21YF30, Service Manual

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4-1 4-2
21YF30
4
EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ/AUTO REMARK
R-DRIVE V00 0~127 63 ADJ
B-DRIVE V00 0~127 63 ADJ
R-CUT V00 0~255 127 ADJ
G-CUT V00 0~255 127 ADJ
B-CUT V00 0~255 127 ADJ
RF-AGC V01 0~127 50 AUTO
VIF-VCO V02 0~63 31 AUTO
H-VCO V03 0~7 3 AUTO
SUB-CONTRAST V04 0~127 100 ADJ
SUB-COLOR V05 0~127 63 ADJ
SUB-BRIGHT V06 0~255 127 ADJ
SUB-TINT V07 0~127 63 ADJ
SUB-SHARPNESS V08 0~63 43 FIX
SUB-COLOR -YUV V09 0~127 90 *FIX BUS SET UP
SUB-TINT-YUV V10 0~127 63 FIX
V-SIZE 50 Hz V11 0~63 38 ADJ
V-SHIFT 50 Hz V12 0~7 3 ADJ
H-SHIFT 50 Hz V13 0~31 9 ADJ
SECAM-BR V14 0~63 37 ADJ
SECAM-BB V15 0~63 22 ADJ
SUB-VOL V16 0~60 60 FIX
V-SIZE 60 Hz V17 -31~0~+31 0 FIX IF NECESSARY, ADJ
V-SHIFT 60 Hz V18 -7~0~+7 -1 FIX IF NECESSARY, ADJ
H-SHIFT 60 Hz V19 -15~0~+15 +2 FIX IF NECESSARY, ADJ
S-TRAP (BG) V20 0~15 7 AUTO
S-TRAP (I) V21 0~15 7 AUTO
S-TRAP (DK) V22 0~15 7 AUTO
S-TRAP (M) V23 0~15 7 AUTO
S-TRAP (5.74) V24 0~15 7 AUTO
** After short JA304 & JA307, and turn on the MAIN POWER switch, read data from EEPROM address
00H ~ 03H. Then compare to the list below. If different, initialize the EEPROM.
Address : Data Address : Data
00H : 8AH 02H : 82H
01H : 84H 03H : 89H
** There are four stages of Service Mode data;
First stage data from V00~V24 (ADJUSTMENT MODE).
To go into second stage of service mode data, press MENU key.Second stage data from F01~F113 (SETTING
MODE).
To go into third stage of service mode data, press MENU key. Third stage data is CHECK MODE.
To go into fourth stage of service mode data, press MENU key. Fourth stage data from O01-O21. (OPTION
MODE)
ADJUSTMENT MODE (FIRST STAGE)
PLS REFER TO
ADJ ITEM FOR
SCREEN AND
WHITE BALANCE
USER DATA
CONTRAST MAX (60)
COLOUR CENT (0)
BRIGHTNESS CENT (0)
TINT CENT (0)
SHARPNESS CENT (0)
WHITE TEMP STANDARD
S-VOLUME MIN
SURROUND OFF
TREBLE CENT (0)
BASS CENT (0)
BALANCE CENT (0)
BLUE BACK OFF
C SYSTEM AUTO
S SYSTEM *1
USER DATA IN SERVICE MODE
* While SERVICE mode ON, EEPROM DATA will switch to the service data.
Also, once SERVICE mode OFF, EEPROM will switch back to previous USER DATA.
* In the service mode, the user data establish as below,
*1: For each CH, data is
same as before switch
to Service Mode.
* Direct Key-in Mode for Service Items in Service Mode
RC (HEX) SERVICE-ITEM
80 R-CUTOFF UP (IN SERVICE MODE V00)
40 G-CUTOFF UP (IN SERVICE MODE V00)
C0 B-CUTOFF UP (IN SERVICE MODE V00)
20 R-CUTOFF DOWN (IN SERVICE MODE V00)
A0 G-CUTOFF DOWN (IN SERVICE MODE V00)
60 B-CUTOFF DOWN (IN SERVICE MODE V00)
E0 R-DRIVE UP (IN SERVICE MODE V00)
10 B-DRIVE UP (IN SERVICE MODE V00)
50 B-DRIVE DOWN (IN SERVICE MODE V00)
E4 R-DRIVE DOWN (IN SERVICE MODE V00)
E4 Y-MUTE (BESIDES OF SERVICE MODE V00)
75 RF-AGC (V01)
F5 VIF-VC0 (V02)
C2 H-VCO (V03)
8D SUB-CONTRAST (V04)
D6 SUB-COLOR (V05)
36 SUB-TINT(V07)
46 SUB-SHARPNESS (V08)
C6 SUB COLOR YUV (V09)
26 SUB TINT YUV (V10)
24 V-SIZE (V11), V-SIZE60 (V17)
54 V-SHIFT (V12), V-SHIFT60 (V18)
74 H-SHIFT (V13), H-SHIFT60 (V19)
66 SCM-BR (V14)
E6 SCM-BB (V15)
C4 SUB VOL (V16)
4C S-TRAP BG (V20)
CC S-TRAP I (V21)
2C S-TRAP D/K (V22)
AC S-TRAP M (V23)
EC S-TRAP 574 (V24)
C1 AUTO ADJ FOR V01, V02, V03, V20, V21, V22, V23,V24
CA T-SET
81 SERVICE MODE
The flow of Mode lists as following,