– 2 –
1. MODIFICATION
• Countermeasure for distortion and white noise.
Improvement of TMR-RF940R (TX board) Increase the capacity
of C21.
Add a 22 µF or 47 µF electrolytic capacitor in parallel with C21.
SCHEMATIC DIAGRAM
• Original Service Manual page 7.
(Location E – G, 6 – 8)
!
: Added portion
[TX Board]
PRINTED WIRING BOARD
• Original Service Manual page 5 and 6.
(Location A – B, 4 – 6)
!
: Added portion
[TX Board] – Conductor Side –
You can use any of the following capacitors.
Part No.
22 µF/4 V
1-124-430-
∏
1-126-263-
∏
22 µF/6.3 V 1-115-863-
∏
1-123-618-
∏
1-124-222-
∏
1-126-153-
∏
1-126-419-
∏
1-126-555-
∏
1-126-269-
∏
22 µF/10 V 1-124-638-
∏
1-123-644-
∏
1-124-228-
∏
1-126-273-
∏
1-126-427-
∏
1-126-783-
∏
1-128-054-
∏
47 µF/4 V
1-107-294-
∏
1-126-265-
∏
1-126-553-
∏
1-126-779-
∏
47 µF/6.3 V 1-123-293-
∏
1-123-647-
∏
1-124-224-
∏
1-126-154-
∏
1-126-271-
∏
1-126-421-
∏
1-126-513-
∏
1-126-557-
∏
47 µF/10 V 1-104-657-
∏
1-111-239-
∏
1-123-294-
∏
1-124-892-
∏
1-126-640-
∏
1-126-744-
∏
1-126-785-
∏
(Any capacitor can be used if its capacity is more than 22 µF and also
small enough for the case of this set.)
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