Sony str 4800 rec service manual

Page 1

SemySTfi-élgfifl, STE-4800.90

AJCImf modular hrEI component/m

>ages 95-124 Courtesy of SONY CORP. OF AMERICA

ALIGNMENTS AND ADJUSTMENTS

FM FREQUENCY COVERAGE AND TRACKING ALIGNMENT

Never attempt alignment of the fm front-end In the case of tracking alignment, ask your nearest
section for the {m frequency coverage and tracking SONY Service Station to send your set to the Factory
alignment, If the fm frequency coverage alignment Service Center

is required, replace the fin front-end board,

AM FREQUENCY COVERAGE AND AM TRACKING ALIGNMENT

Test setup:

FUNCTION selector: AM VTVM
m *7 /
signal lead»w[re antenna ,9, 0-0
generally 02 I I IN
I I l
Madulatian: 400m, 30% REC OUT Adjust for maximum
reading,

Step AM TRACKING ALIGNMENT

1 L1 (600 kHz)
2 CT40I 11,400kHZI

Note: Reps. step 1 and 2 several timer,
and finish the alignment at step 2.

care

L1 AM Ferrite-rod antenna

Step AM FREQUENCY COVERAGE ALIGNMENT DIAL INDICATION

L403 I520 kHz) Lower End
2 CT402 (1,680 kH Z) Upper End

Note: Repeal Step 1 and 2 several times.
and linish th: alignment at slep 2.

95*