Sony ICF-7600DA - Page 49

@ Service manual page 19.
CLOCK-FREQUENCY ADJUSTMENT
Procedure:
1.
Adjust CT201 so that the reading on the fre-
quency counter becomes in 10.860000 MHz
(10.710 MHz + 0.150 MHz).
Hit the FM button. The band should become in
FM and the frequency on the LCD panel of the
set should be 76.00 MHz (US, Canadian model)
or 87.5 MHz (AEP, Italian, UK, E, AUS model). ©
Hit the SW button. The band should become in
the SW1 and the frequency on the LCD panel
of the set should be 3,050 kHz (Except for
Italian model) or 3,850 kHz (Italian model).
@ Service manual page 23.
SW TRACKING ADJUSTMENT
Procedure and Adjustment Location:
1.
Check and verify the VCO voltages on the LPF
line at both the lowest and highest frequency
points as shown. See page 20 for the LPF line.
| _tow Eps | _HIGH ENDS
VCO(L) : 150kHz
VCO(H) : 9,375kHz
VCO(L) : 7,465kHz
VCO(H) : 21,960 kHz
1.50~2. 00V 12.5~15. 5V
VCO(L) : MW/LW~SW5, SW12 (Except for Italyan model)
MW/LW~SW4, SW11 (Italian model)
VCO(H) : SW6~SW11 (Except for Italian model)
SW5~SW10 (Italian model)
reading on the VIVM.
sexu | Sat [1s |
| sw3qsw2)) | 4,900kHz [14 |
rswaccsway [6.060% [Ls |———J
Fsws«sway | 7.200482 | t6_ | ———J
[| swecsws) | 9,700kH2 | L7_-———
| SW7(SW6)) | 11,850kHz | L8 |
rswacsw7) | 13,700KH | L9_|
swousway | 15,300kHz [Lio | —___ dt
ee -— ee
| —sCY
fe A = ee
— main board (component side)
PS eMaala|alolololomes
SW10((SW9)) 17,800kHz
SW11((SW10))| 21,600kHz
SW12(SW11)) | 25,800kHz
((__)): Italian model
* ; Except for Italian model