Sony str 4800 rec service manual
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Extracted text from sony str 4800 rec service manual (Ocr-read)
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*
Page 2
96
2-6. DIAL CORD STRINGING
l) Dial Cord Length
0, 3 mm dia eye/e t
¢> \{m q>§é3 :>\&J%
knut
795mm
1315/15";
crimp hele
dial points!
2) Dial Cord Stringing
tuning :hafr
(two counter»
clockwise turns}
Ha/d the string nut to slacken here,
.- fully ciackwise pas/non.
Wind the string two
man teralackwise an drum.
@ Set the string on the drum finally.
w
tuning drum
@ starting
pain r