PHILIPS L7.2
Service Manual

10

L7.2E

5

Repair facilities
5.5.6 White tone
Below an example of the white tone sub menu and the derived "WARM", "COOL" and "NORMAL" sub menus are given. With these menus the WARM, COOL and NORMAL colour temperatures can be changed. Speed Normal Slow Fast MAIN WHITE TONE MENU

TUN.FOA OFF OFF ON

TUN.FOB OFF ON X

5.5.4

EXTERNAL A/V Speed setting
With the items EXT.FAO and EXT.FOB the speed ( time constant) for external signals is set. The speed can be set normal, slow and fast. Table 4: Options for External AV Speed settings

S

WARM COOL EXT.FOA OFF OFF ON EXT.FOB OFF ON X Speed Normal NORMAL

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WARM TEMPERATURE SUB MENU Slow Fast WARM S

5.5.5

Tuner
Below an example of the sub menu Tuner is shown.

RED GREEN

39 39 25 COOL TEMPERATURE SUB MENU

Tuner

S

BLUE

AGC F-PLL IF PLL L' AFW AFA AFB Item AGC:

23 3 COOL 0 240 KHz RED 0 GREEN 1 BLUE 25 NORMAL TEMPERATURE SUB MENU For the setting of the item AGC see RF AGC adjustment paragraph 8.1.4 of chapter 8. NORMAL Item IF-PLL, IF-PLL L ACCENT, AFW, AFA and AFB, RED When the main signal processor IC TDA8373/74 is changed, the IF-PLL and IF-PLL L ACCENT need to be realigned For the settings of IF-PLL, IF-PLL L ACCENT and AFW see the picture demodulator adjustments paragraph 8.1.5 of chapter 8. GREEN BLUE Remark: Only one of the 3 items (RED, GREEN or BLUE) will be displayed on the screen. Via "scrolling with the UP/DOWN keys the items can be changed. The item's red, green or blue can be changed by first pressing the control left/right keys to highlight the desired setting. With the desired setting high lighted, the user can increment or decrement the setting by using the control up/down key. All 39 39 25 S 39 39 S

Remark: AFA and AFB are adjusting indicators and therefore not selectable.