The "no signal method" for color TVs was adjusted to the middle of the week and has been acknowledged as the "best plan." This method has proven effective in maintaining various types of color TVs. Non-I2C bus color TVs produced in the early 1990s and earlier often face issues where capacitors oxidize, causing their capacity to decrease and resulting in detuning. This affects the viewing experience. Many models of these TVs have different image and accompanying sound detection circuits. Remembering all the detection points (AFT voltage output pins) when adjusting the middle week can be challenging, so this "quick monitoring point monitoring table" was created, making it very user-friendly. I am now sharing this with my peers. In the eighth issue of 2002, we published an article by Mr. Zhou, where he emphasized in bold: "Adjust the two midweeks without signal to maximize the AFT voltage. At this point, adjust the image in the middle of the week; then adjust the AFT midweek to bring the AFT voltage back to 6.5V. At this stage, both the AFT and other settings should align." While working on a TV repair for a JVC 7695 in Taichung, I fully applied the core of the AFT mid-week adjustment, but the voltage was less than 6.5V (actually 7.2V), yet the fault was resolved. Mr. Zhou's statement about adjusting the AFT voltage back to 6.5V serves as further clarification. In reality, different models using the same type of integrated circuit may have varying AFT voltages. Therefore, the AFT output voltage is also included in this table for reference during the middle week adjustment. Serial Number (Type) Integrated Circuit Model Monitoring Foot Voltage (V) Door Contact Switch,Contact Switch For Door,Magnetic Door Contact Switch,Normally Open Door Contact Shanghai Janetec Electric Co., Ltd. , https://www.janetecelectric.com
1 Hitachi NPSCHA11215A165.8
2 Hitachi NPSOCHA11440R84.8
3 Hitachi NP82CHA11440B84.8
4 Hitachi NP82C20HA11485BNT16.5
5 Hitachi CTP2205HA11485BNT15↓
6 Panasonic M11AN513266.7
7 Panasonic M12AN513266.7
8 Panasonic M14/15AN5138103.7
9 Toshiba X-53/56PTA7607AP66.5
10 Toshiba two pieces TA7680AP136.3
11 Victory X53PTA7607AP66.3
12 Victory X56PTA7607AP66.6
13 Victory two pieces TA7680AP138.5
14 Sanyo 79CPLA1357N105.6
15 Sanyo 80CLA1357N105.2
16 Sharp NC-ITIX0388CE245.4
17 Sharp NC-IITIX0388CE246.9
18 Sharp C -3700CEIX0464CE245.1
19 Sharp C-1803CEIX0261CE244.4
20 Sharp two pieces AN7680AP135.7
21 Lu's two pieces AN7680AP136.5
22 NEC TAμ two pieces AN771046.5
23 日电 CV-14TTA7607AP56.1
24 日电 CT-1803PDM51346P125.0↑
25 Sony XE- The legislation 18DSLA7520175.5
26 Europe Kang Yi Kang Yi KTNS145TA7680A138.1
27 T7701 / 7751BAN5150N125.6
28 South-NC-9321TA7680AP136.3
29 South NA14PDTA7607AP56 ↓
30 on the South NA14PDTA7607AP56 ↓
31 Music DCS-405MEAN7680AP136.5
32 Beauty EC206 / 2061RTA7681AP136.5
33 Beijing 83818308TA7607AP56.6
34 Shanghai Z247-1ATA7607AP56.8
35 Shanghai Z247-5AD7680CP135.5
36 Shanghai Z64 17-1BTA7607AP52.6↓
37 JinXing C478HA11485BNT15.6
38 JinXing C512D7680AP137.2
39 JinXing C542D7680AP137.4
40 JinXing C4712HA11440A86.8
41 JinXing C4718TA7680AP138.6
42 LeHua TC511CD513265.6
43 LeHua TC541TA7680AP139.8
44 HaiHong 56emTA761156.7
45 HaiHong HH2063RTA7681AP136.8
46 Jiuhua CD1401TA761156.3
47 Prima XT5101TA7680AP136.4
48 New KG5168-2TA7680AP137.1
49 Jiangxi Jinggangshan of Jiangxi New KG5401TD7680AP136.9
50 CJ5401TDA7680AP135.7
51 Jinggangshan CJ471TA7680AP135.7
52 Peony 47C4AN513264.6
53 Veuve 4C-4701IX0718136.5
54 Panda DB47C4D7680AP136.7
55 HuaLi C513TA7681AP137
56 Wishful 4103TA7680AP134.5
57 Ring Word 47C2D760755.2 ↑
58 Happy HC2063RTA7680AP136.2 ↑
59 Konka KK-T920BTA7680AP136.6