Sanyo C21LF41 User manual

SERVICE MANUAL Colour Television
Product Code: 13007604
13007605
Original Version
Chassis Series: LA6-A
BC2E
FILE NO.
Model No. C21LF41
C21LF41B
Service Ref. No. C21LF41-00
C21LF41B-00
(Argentina)
Give complete “SERVICE REF. NO.” for
parts order or servicing. It is shown on the
rating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the speci-
fication table.
Specifications
Power Source . . . . . . . . . AC220V, 50Hz / 60Hz
Receiving System . . . . . . PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69
CATV mode VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Aerial Input Impedance . . 75
Input Terminals
AV1 (Video): Phono jack ✕1
฀฀฀฀AV1 (Audio): Phono jack (R/L) ✕1 set
AV2 (Video): Phono jack ✕1
฀฀฀฀AV2 (Audio): Phono jack (R/L) ✕1 set
Output Terminals
Video Monitor Output: Phono jack ✕1
฀฀฀฀Audio Monitor Output: Phono jack (R/L) ✕1
Headphone Jack: Mini stereo jack ✕1
Sound Output (RMS) . . . . 3W + 3W
Speakers . . . . . . . . . . . 5cm x 9cm x 2 pcs.
Dimensions . . . . . . . . . 596(W) X 493(H) X462(D) mm
Weight . . . . . . . . . . . . . approx. 22 Kg
Specifications subject to change without notice.
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JXMRR
POWER

-8-
Service Adjustments
MENU
MENU
MENU
S1.11100101 S2.11111000
ADDRESS DATA
02 H-PHA 08
Item No. Item Data value
General
This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the
service adjustments.
2. Service Adjustments:
Press the CHANNEL UP or CHANNEL DOWN
button on the remote control handset to select the
desired service menu item you want to adjust.
Use the VOLUME + or
- to adjust the data. The + or
- button will increase or decrease the data
sequentially.
3. Exit from the Service Menu
Press the MENU button to turn off the Service Menu
display.
The data which is set in the service mode is stored
into the memory IC automatically.
[ Service Mode Display ]
Service Adjustment-1
1. Enter the Service Menu
While pressing the MENU button on the television, press the Number Key 2 on the remote control unit.
The Service Menu now appear.
IC802 (EEPROM) Replacement
When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation.
However, the bus data should be checked and some bus data should be set up before attempting the service adjustments. (See
pages 9 ~ 10 for detailed information.)
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VOLUME +
VOLUME -
CHANNEL UP
CHANNEL DOWN

-9-
Service Adjustments
On-screen Service Menu
Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments.
When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be
checked and be set up or readjusted according to the procedures described in the following pages.
Initial Setup Data marked with an * should be changed from Initial Value Data.
No Item Initial value Range Description
1 RFAGC 13 00~63 RF AGC adjustment
2 H-PHA 12 00~31 H-PHASE adjustment(50Hz)
3 V-DC 28 00~63 V-POSITION adjustment(50Hz)
4 V-SIZ 79 00~127 V-SIZE adjustment(50Hz)
5 V-SCO 18 00~31 Vertical-S compensation(50Hz)
6 V-LIN 15 00~31 Vertical linearity adjustment(50Hz)
7 H-P60 +3 -16~+15 Difference value of H-PHASE adjustment(60Hz)
8 V-P60 0 -32~+31 Difference value of V-POSITION adjustment(60Hz)
9 V-S60 0 -64~+63 Difference value of V-SIZE adjustment(60Hz)
10 VSC60 0 -16~+15 Difference value of Vertical-"S" compensation(60Hz)
11 VLI60 0 -16~+15 Difference value of Vertical linearity adjustment(60Hz)
12 OSDHP 37 01~255 OSD horizontal remark position
13 OSDC 04 00~07 OSD Contrast
14 V-SCP 03 0~7 V-SIZE COMP
15 SBIAS 31 00~127 Sub Bias adjustment
16 RBIAS 00 00~255 Red Bias adjustment
17 GBIAS 00 00~255 Green Bias adjustment
18 BBIAS 00 00~255 Blue Bias adjustment
19 RDRIV 64 00~127 Red Drive adjustment
20 GDRIV 08 00~15 Green Drive adjustment
21 BDRIV 64 00~127 Blue Drive adjustment
22 White balance (a lateral line)
23 DRV Bright and Dark of White balance adjustment
24 B-YD 11 00~15 B-Y DC Level
25 R-YD 11 00~15 R-Y DC Level
26 B-YDN 0 -16~+15 Difference value of NTSC B-Y DC Level
27 R-YDN 0 -16~+15 Difference value of NTSC R-Y DC Level
28 G-YA 00 00~01 G-Y Angle
29 RBGB 10 00~15 R-Y/ B-Y Gain Balance
30 RBAG 08 00~15 R-Y/ B-Y Angle
31 G-YAN 00 00~01 NTSC G-Y Angle
32 RBGBN -8 -8~+7 Difference value of NTSC R-Y/ B-Y Gain Balance
33 RBAGN +4 -8~+7 Difference value of NTSC R-Y/ B-Y Angle
34 COGV 03 00~03 Coring Gain
35 BLKS 00 00~03 Blk.str.start(W/Defeat)

-10-
Service Adjustments
No Item Initial value Range Description
36 BLKG 00 00~03 Blk.STR.gain
37 BRTA 00 00~01 Brt. Abl. Def
38 BRST 00 00~01 Mid. Stp. Def
39 BRTH 00 00~07 Bright. Abl. Threshold
40 WPL 00 00~03 WPL Ope. Point (W/ Defeat)
41 YGAM 00 00~03 Y Gamma Start
42 PRES 02 00~03 AV Mode Pre Shoot adj
43 OVERS 03 00~03 AV Mode Over Shoot adj
44 RFCO +1 -2~+1 Difference value of RF Coring Gain
45 PRESN 00 00~03 RF Mode Pre Shoot adj
46 OVERSN 03 00~03 RF Mode Over Shoot adj
47 TINT 0 -16~+15 Tint
48 SHRF +5 -16~+15 Difference value of RF sharpness
49 RFCOL +10 -16~+15 Difference value of TV color
50 TEXC +2 -4~+3 OSD TEXT Contrast
51 AUFL 00 00~01 Auto. Flesh
52 COOP 07 00~07 Color Killer opt.
53 VCOFRQ 00 0~255 VCO Freq
54 DEEM 00 00~01 De-emphasis TC
55 V-LVL 06 00~07 Video Lvel
56 STRAP 04 00~07 S.Trap Adjust
57 IFOM-S 00 00~01 OVER MODURATION SW
58 IFMN-S 00 00~01 AUDIO MONITOR SW\ MONITOR OR FM
59 IFTRPS 00 00~01 IC built-in SIF TRAP SW ON-OFF
60 OVMLVL 08 00~15 OVER MOD LEVEL
61 VBSW 00 00~01 VBLK SW
62 FBTS 00 00~01 FBPBLK. SW
63 HBLKL 05 00~07 H-Blanking Control Left
64 HBLKR 03 00~07 H-Blanking Control Right
65 AFCRF 00 00~01 Adj. of AFC Gain & gate (RF)
66 VSURF 00 00~01 Adjustment of Vertical Sync.Separation Sensitivity (RF)
67 CDMRF 00 00~07 Vertial Count Down Loop Adjustment (RF)
68 AFCAV 01 00~01 Adj. of AFC Gain & gate (AV)
69 VSUAV 00 00~01 Adjustment of Vertical Sync.Separation Sensitivity (AV)
70 CDMAV 00 00~07 Vertial Count Down Loop Adjustment (AV)
71 HLK-T 00 0,1 Hlock,Vdet(RF)
72 HLK-V 00 0,1 Hlock,Vdet(AV)
73 VCOADJ 04 00~07 C.VCO Adjust (NTSC PAL-N corresponding)
74 GRAY 00 0,1 GRAY MODE
75 CROSS 00 0~3 CROSS B/W

-11-
Service Adjustments
No Item Initial value Range Description
76 HL-TON 00 0~3 HALF TONE LEVEL
77 AVNCON 64 00~127 AV CONTRAST(No Signal in AV)
78 AVNBRI 64 00~127 BRIGHT (No Signal in AV)
79 POMT 12 00~127 Power Mute Time
80 CHMT 05 00~31 CH Mute Time
81 SYST 03 00~255 System N
82 RELAY 125 00~255 Power relay on time(8msec)
83 CCD 35 1~63 CAPTION Horizontal Remark Position
84 AVTVTM 01 0~255 FEATHER MENU AV/TV CHAGNE
85 FM-G 01 00~01 FM Gain
86 VSHIFT 02 0~15 V.SHIFT
87 CTRAP 04 0~7 C.TRAP ADJUST
88 CBPF 00 0~3 C.BPF ADJUST
89 C-KILL 00 0~1 C_KILL ON
90 G-YAMP 08 0~15 G-Y AMP
91 B-YDPM 0 -16~+15 Difference value of PALM B-Y DC Level
92 R-YDPM 0 -16~+15 Difference value of PALM R-Y DC Level
93 YTH 00 0~3 Y TH
94 YGAIN 00 0~3 Y Gain
95 RWIDTH 00 0~3 R Width
96 ROFSET 00 0~3 R Offset
97 BWIDTH 00 0~3 B Width
98 BOFSET 00 0~3 B Offset
99 RGBTMP 00 0~1 RGB TEMP SW
100 VCOPLM 02 00~07 C.VCO Adjust (PAL-M corresponding)
101 OSDPIC 00 00~127 OSD MENU PICTURES H-POSITION
102 OPTPOW 00 0~1 LAST POWER STATUS OPTION
103 OPTAVN 00 0~1 1AV OR 2AV SYSTEM OPTION
104 VER VERSION AND DATE