SONY KL37W2K
Manual de Servicio

KL-37W2/37W2K KL-50W2/50W2K/50W2U

RM-838 RM-838

SECTION 3.

CIRCUIT ADJUSTMENT

Addition of CU Board Adjustment 3-9. CU BOARD ADJUSTMENT
� SHADING ADJUSTMENT RV5801 BLUE RV5802 GREEN S5802 BLUE AMP / ATT S5803 GREEN AMP / ATT � CORNER ADJUSTMENT RV5811 BLUE UP LEFT RV5812 BLUE UP RIGHT RV5813 BLUE DOWN LEFT RV5814 BLUE RV5815 GREEN RV5816 GREEN RV5817 GREEN RV5818 GREEN S5804 S5808 BLUE GREEN DOWN RIGHT UP LEFT UP RIGHT DOWN LEFT DOWN RIGHT AMP / ATT AMP / ATT CU Board (Component Side)
LEFT GS BS DN UP BLUE UP RIGHT DN DN LEFT GREEN UP RIGHT UP DN

RV5802 RV5801

RV5813

RV5811

RV5812

RV5814

RV5817

RV5815

RV5816 AMP

RV5818 ATT

AMP

S5803

B

S5802 AMP

S5804
B

ATT

ATT

G

SHADING CORNER ATT

G

CN5801 AMP

S5808

Fig. 1

(1) Preparation 1) Input flat 50 white signal. 2) Change all switches (S5802 ~ S5804, S5808) to AMP side as Fig. 1. 3) Turn all volumes (RV5801, RV5802, RV5811 ~ RV5818) clockwise to minimum. (2) Shading Adjustment 1) Comparing the colour on the left side of picture with that at the center, perform the adjustment with the following algorithm.

Check left side color tendency.

Reddish ?
Yes

No

Greenish ?
Yes

No

Adjust green with RV5802.

Switch S5803 to ATT side and adjust green with RV5802.

Switch S5802 to ATT side and adjust blue with RV5801.

No

Blueish ?
Yes

No

Yellowish ?
Yes

Yellowish ?
Yes

No

Switch S5802 to ATT side and adjust blue with RV5801.

Adjust blue with RV5801.

Switch S5802 to AMP side and adjust blue with RV5801.

TO CORNER ADJUSTMENT

�2�