Icom IC-M72 Service Manual page 25
Vhf marine transceiver
Hide thumbs
Also See for IC-M72:
- Instruction manual (40 pages) ,
- Instruction manual (40 pages) ,
- Instruction manual (20 pages)
Table of Contents
Advertisement
SECTION 8
SECTION
SEMICONDUCTOR INFORMATION
PARTS LIST
8 - 1 TRANSISTORS AND FET'S
NAME
SYMBOL
INSIDE VIEW
�
2SB1201S-TL
B1201
�
�
�
�
2SC4215-O
QO
�
2SC4215-Y
QY
�
2SC4226-T1
R25
�
2SC5110-O
MGO
�
2SD1801S-TL
CE
�
�
�
G
2SK1829
K1
D
S
�
2SK880-Y
XY
�
�
�
��
3SK293
UF
�
��
��
�
3SK294
UV
��
�
�
KTA1664Y-RTF/P
R
�
�
�
NAME
SYMBOL
INSIDE VIEW
�
�
KTA2015Y-RTK/P
Z
�
RD01MUS1
K2
G
RD07MVS1
RD07MVS1
D
D
RSQ035P03TR
TM
D
G
�
UNR9111J
6A
UNR9113J-(TX)
6C
�
�
UNR9210J-(TX)
8L
UNR9213J-(TX)
8C
�
��
XP1213
9L
��
��
��
XP4313-(TX)
BZ
��
��
��
XP6501-(TX)
5N
��
��
8 - 2 DIODES
NAME
�
1SV307
D
G
1SV308
S
S
D
MA111-(TX)
G
MA2S077-(TX)
MA2S111
MA8110L
D
S
G
S
HVC350BTRF-E
D
D
S
HVC376BTRF-E
�
�
KDS122
RB706F-40T106
��
��
SB07-03C-TB-E
��
��
��
��
��
��
SYMBOL
INSIDE VIEW
�
�
TX
TX
1B
S
A
11_
B0
A
C
B9
C3
3J
�
J
�
8 - 1
- Quick Links:
- Parts List
Hide quick links:
Advertisement
Table of Contents
Need help?
Do you have a question about the IC-M72 and is the answer not in the manual?
Questions and answers
Sound does not work
The sound might not work on the Icom IC-M72 due to the following reasons:
1. Squelch Level: The squelch level may be set too high, which blocks audio. Adjust it by pushing the appropriate buttons (`[ ]`, `[Y]`/`[Z]`) to lower the squelch level.
2. Volume Setting: The volume may be set too low. Rotate the `[VOL]` knob to increase the volume.
3. Signal Reception: Ensure the radio is receiving a signal. The " " indicator should appear when a signal is being received, and audio should emit from the speaker.
4. Speaker Issue: Check if the speaker is functioning properly. If the external speaker or audio output is faulty, repair or replacement may be needed.
5. Incorrect Channel: Verify that the correct channel is selected, as some channels may not have active transmissions.
If these adjustments do not resolve the issue, further inspection or servicing may be required.
This answer is automatically generated