SONY BKSM-T103
Service Manual

1-2. Electrical Alignment

Preparation 1. Connect the equipment. 2. Extend the APR-30 board using the extension board EX-592. (Refer to �1-6. Use of Extension Board� in the Maintenance Manual for DSM-T1.) 3. Connect the coaxial cable and harness to the APR-30 board. Coaxial cable : CN100 (A-3) Harness (white) : CN900 (A-6) Harness (red)*1 : CN1100 (A-6)
*1 : Only when the rear panel with 5-pin XLR connector is used.

Adjustment Procedures 1. Supply 100% color-bar signal from the composite video signal generator to the VIDEO connector on the DSM-T1. 2. Adjust RV301 (B-4) on the APR-30 board so that VIDEO OUT of the DSM-R1 is satisfied the specification. Adjustment : 1RV301 (B-4) Specification : A = 700 ± 7 mV

4. Return the menu setting data of the DSM-T1 and the DSM-R1 to the factory setting. (Refer to �3. To return the menu setting data to the factory setting� on the page 1-2.) 5. Turn on the power of the DSM-T1 and warm up the unit about 10 minutes. 6. Set the following menu for DSM-T1. (Refer to the �Menu Setup� in the Operation Manual for DSM-T1.) . �03 : VIDEO STD� : 625 7. Set the following menu for DSM-R1. (Refer to the �Menu Setup� in the Operation Manual for DSM-R1.) . �03: VIDEO STD� : 625 8. Set the synthesized signal generator. . Frequency : 1270 MHz . Out Level : 0.0 dBm

A

9

1

6

5

4

8 7

3

A B C D E F G H J K L

RV301

APR-30 board (A side)

1111
2

1-6 (E)

BKSM-T103