LC-M3700 (serv.man7). (7) Adjustment procedures - Sharp TV Service Manual (repair manual). Page 4

3) SECAM signal adjustment

Adjustment item

Adjustment condition

Adjusting method

Signal input

Using a signal generator, feed SECAM split field
color bars (containing 100% white and having color
saturation of 75%) to the video signal input terminal
of INPUT1 or INPUT2.

1

Setting

Set the color system to SECAM.

2

Page4
SECAM Y GAIN

SECAM Y gain
adjustment

Using pin (1) of P802, adjust the gain to
0.70±0.025Vp-p.

3

Page4
SECAM CB GAIN

SECAM color density
adjustment

Using pin (3) of P802, make adjustment so that the
interval indicated in the figure below becomes
0.53±0.025Vp-p.

0.53Vp-p

2) PAL signal adjustment

3

MAIN PAL color

PAL CB GAIN

density adjustment

Using pin (3) of P802, make adjustment so that the
interval indicated in the figure below becomes
0.53±0.025Vp-p.

0.53Vp-p

4

MAIN PAL Cr level adjustment

Using pin (5) of P802, make adjustment so that the
interval indicated in the figure below becomes
0.53±0.025Vp-p.

0.53Vp-p

5

MAIN CONTRAST

CONTRAST 15k

adjustment

Using the IC8805 output (TP8805), adjust the
contrast to 0.90±0.025Vp-p above the pedestal.

TP8805

TP8805

Adjustment item

Adjustment condition

Adjusting method