Suzuki S-1800M10 User manual

2010/5/28
MODEL S-1800
（80kHz／180kHz）
Technical Manual
SUZUKI FISH FINDER CO., LTD.
12-1 MAMIZUKA CHO, TOYOHASHI, AICHI
441-8007 JAPAN
PHONE: [phone] FAX: [phone]
E-mail address: [e-mail]
URL: http://www.suzukiff.co.jp/

Contents
Page
3 AFTER INSTALLATION
DAILY MAINTENANCE AND INSPECTION
4 CAUTIONARY NOTES
5 FLOWCHART into ECHO DISPLAY
6 "WAITING" stays more than 2 minutes and then "CHECK FUSE AT CONTROL-BOX" appears next.
7 SELF CHECK SCREEN
8 The hoist does not raise or lower the soundome.
The hoist stops raising or lowering the soundome on the way,
9HOW TO CHECK THE LIMIT SWITCH / THE SYMPTOMS OF FAULTY LIMIT
SWITCH
10 Sonar Scanning stops intermittently. Sonar Scanning stops.
11 "WAITING" will appear more than 2 minutes and next "CHECK FUSE AT CONTROL-BOX" appears.
Normal Display does not appear on the screen even when Sonar Mode is set.
(HOIST NG)
Scanning stops when Gain Dial/Far Gain Dial is turned.
Scanning stops when a Key is pressed.
12 No lighting of Sensor Lamp (LED)
13 LED does not light even if the Hoist is lowered.
Display does not change even if the tilt has been changed.
The depth readout is abnormal when Bottom Scanning is selected.
14 No Picture Display on the screen when scanning.
15 Only the surface echo is displayed.
The sensitivity is poor.
The picture does not change even if the Gain or Far Gain Control dial is turned.
17 Alignment for soundome cable connectors.
18 S-1800M10: Nothing appears on the screen when powered.
19 S-1800M10: Screen gets bright, but nothing appears
S-1800M10: Screen doesn't change into bright, even if the brightness dial is turned.
20 S-1800M10: The picture is unstable and scrolling vertically.
S-1800M10: Stripes appears to the left or right direction on the screen and no normal picture display.
S-1800M10: The specific colors do not appear on the screen. All screen changes into a specific color.
-1-

Contents
Page
21 S-1800M15: No picture on display screen when powered.
22 S-1800M15: Screen gets bright, but nothing appears.
S-1800M15: Screen does not change into bright even if the bright dial is turned.
23 S-1800M15: The picture is unstable and scrolling vertically.
S-1800M15: Stripes appears to the left or right direction on the screen and no normal echo display.
24 S-1800M15: The specific colors do not appear on the screen. All screen changes into a specific color.
S-1800M15: Vertical phase is in a wrong position. Horizontal phase is in a wrong position.
25 The temperature readout is abnormal.
26 The audio monitor is not audible.
The memory data cannot back-up.
27 Key operation is not accepted.
"Beep" is not heard when a key is pressed.
28 Ship's speed cannot be displayed or abnormally displayed.
Navigational display does not appear on the screen.
29 Adjusting the Power Supply PCB (No.654) for S-1800M10
30 Adjusting the Power Supply PCB (No.692) for S-1800M15 (MBB).
Confirming the voltage on the Power Supply PCB (No.694) for S-1800M15 (MBB).
31 Adjusting the voltage, 85V on the Power Supply PCB (No.703) for S-1800 Hull Unit
32 Adjusting the voltage, 70V on the Power Supply PCB (No.703) for S-1800 Hull Unit.
33 Main PCB for Monitor / Main PCB for Hull Unit
34 Power Supply PCB / TR PCB for Hull Unit
DRAWINGS
BLOCK DIAGRAM
CIRCUIT DIAGRAM
WAVE FORMS
ASSEMBLY DRAWING
-2-

【AFTER INSTALLATION】
Check to ensure the voltage between the flange and the battery (negative) is lower than
0.65V.
If the voltage is high, connect the thick wire and make it lower than the regulated value.
The high voltage causes an electrolytic corrosion.
【DAILY MAINTENANCE AND INSPECTION】
For long-term trouble-free service, keep the unit away as much as possible from direct sunlight,
moisture, dust, and shocks.
For keeping the equipment in good working order, check the following points regularly.
Is the power supply is compatible with the voltage rating of the equipment?
Model Input Power supply
S-1800M10 DC10.5〜40V
S-1800M15 DC20〜30V
S-1800H80/180 DC10.5〜30V
Dust or dirt must be removed from the equipment with a soft and dry cloth.
Be sure to use “display cabinet cover” to protect the unit from salt damage.
CAUTION
Do not use chemical cleaners to clean the equipment.
Remove oyster or barnacles attach on the soundome that result in poor sonar performance.
Tighten the screws of the mounting bracket, the flange, and the electrical connections.
The Hoist Gears and Flange Unit require regular lubrication with grease.
-3-

【CAUTIONARY NOTES】
Prior to doing any repair work, please check the items listed below.
Is the power supply voltage is normal?
Is the polarity (＋, −) of a power supply correct?
Have any fuses blown out?
All the connectors wired correctly?
Securely tighten all connections.
Check to see if the connectors to individual boards are connected.
Check to see if the cable broke.
Check to see if there is any disordered appearance.
When conducting repair work, care should be taken as follows.
Make sure to turn the main power off before repair work and remove the power cable.
Due to the high voltage in the inverter unit, it is very dangerous to touch the peripheral lines.
C-MOS・ICs are on the boards. To avoid the damage by static electricity, do not wrap the board
in any material that causes static electricity or do not use leaky soldering irons.
Do not place the board on a metal board since the battery is mounted on the board or some
electric charge might remain on the condenser.
The following cases void its warranty and the high repair charge will be required.
<Changing the chip parts>
<Soldering on the board>
<Abnormal adjustment on the variable resistors>
-4-

[FLOWCHART into ECHO DISPLAY]
-5-
Turn on the power
The hoist starts to lower the soundome unit.
"WAITING" appears on the screen.
Upper Limit Switch
OFF The hoist does not raise or lower the soundome unit.
"WAITING" appears for 2 minutes.
And then "CHECK FUSE AT CONTROL-
BOX" appears next.
Lower Limit Switch
ON
Sonar Scanning starts.
The hoist stops lowering the
soundome.
Sonar Scanning starts.
Normal Picture Display
appears When the soundome does not protrude from the Trunk Pipe, Normal Display does not
appear on the screen.

NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
-6-
"WAITING" stays more than 2 minutes
And then "CHECK FUSE AT CONTROL-BOX" appears next.
Is the power supply connection in Hull Unit OK?
Is the polarity of the power supply cable correct?
Is the breaker of your ship ON? Check the DC voltages and power cable
connection.
Turn ON the breaker of your ship.
Is the fuse of Hull Unit normal? Replace the blown fuse.
Is the Signal cable normal? Verify the disconnection of the
Signal cable.
Check if the DC voltages at check pins
5V-1-GND-1 and 5V-2-GND-2 in the
Main PCB for Hull Unit portion is OK?
(Voltage must be 5 Volt.) Power Supply PCB in Hull Unit portion
Main PCB in Monitor portion
Is 5 Volt present in Main PCB for
Monitor portion? Power Supply PCB in Monitor portion
Are the waveforms of REQ-H,
ACK-H, and BUSY-H in Main
PCB for Hull Unit normal?
Main PCB in Monitor portion
Main PCB in Hull Unit portion
Are the waveforms of REQ-H,
ACK-H, and BUSY-H in Main
PCB for Monitor portion normal?
Main PCB in
Hull Unit portion

* By selecting the mode selection dial to MENU 2, “SELF CHECK”appears on the screen.
SELF CHECK
SELF CHECK
DATA-TX OK… Receiving the data between the Monitor unit and the Hull Unit.
DATA-RX OK… Transmitting the data between the Monitor and the Hull Unit.
DATA OK… Data transferred between the Monitor Unit and the Hull Unit.
HOIST OK… Hoist up and down
TILT OK… （Not available in this model）
TRAIN OK… Bearing direction control on the soundome
ROM-VER OK… P-Rom version of Monitor or Hull unit
OTHERS OK… （Not available in this model）
DATA-TX NG
Power Supply PCB for Monitor or for Hull unit (5V-2) is faulty.
Main PCB for Monitor or for Hull Unit is faulty. (C. Circuit: BUSY, ACK, REQ)
Signal cable is faulty
DATA-RX NG
Main PCB for Monitor or for Hull Unit is faulty. (C. Circuit: BUSY, ACK, REQ)
DATA NG
Main PCB for Monitor or for Hull unit is faulty. (C. Circuit: DIO 0〜DIO 3)
Signal cable is faulty
HOIST NG
Fusing at FUSE 2 for hoist motor
Hoist control circuit in Main PCB for Hull unit is faulty.
Hoist motor cable is faulty.
Limit Switch is faulty.
Hoist Motor is faulty.
TRAIN NG
Motor Control PCB for Hull Unit is faulty. (Train Control section)
Soundome is faulty.
Soundome cable is faulty.
ROM-VER NG
P-ROM version for Monitor or for Hull Unit is not correct.
-7-
SELF CHECK SCREEN

NO
YES
NO
YES
NO
YES
NO
YES
FUSEFUSE1 For the power supply circuit of the control unit.
FUSE2 For the Hoist motor
FUSE3 For the hoist circuit
When the fuse 1 blows, the Hoist raised the soundome, but does not lower it.
When the fuse 2 and 3 blow, the Hoist neither raises nor lowers the soundome.
Barnacles or oysters that adhere to the soundome will cause the soundome trouble.
Therefore remove them whenever they are found.
Also remove them when the ropes etc. got twisted round the soundome.
When overloaded, other than the fuse 2 the protect circuit in the monitor unit becomes active
to protect the circuits or the hoist motor.
The circuit returns automatically after it is cooled down. For that the power should be kept
OFF for a while.
Exchange the fuse 2 if it blows.
Disconnect the power when the Hoist could not raise or lower the soundome.
Otherwise this could damage the motors or Main PCB in Hull Unit.
-8-
The hoist does not raise or lower the soundome.
The hoist stops raising or lowering the soundome on the way.
Are the fuses 1, 2 and 3 all OK?
Is the LED of the main board in the hull unit lit?
Is 8 Volt present in the line at No.3 of J12 on the
main board?
Replace the fuses.
Cut the breaker of your ship.
Remove the connector of the hoist motor.
Manually shift the hoist halfway down.
Turn on the breaker of your ship.
Is the voltage normal at the point between
No.1 and No.2 of J10 on the main board of
the hull unit?
Check 8Vcircuit
And repair.
Replace the Hoist Motor
Is the Limit Switch OK?
Main PCB in Hull Unit portion
Replace the Limit Switch.

BEFORE MAINTENANCE AND INSPECTION (connected with the limit switch cables: red and black, brown)
Turn the breaker of your ship OFF. Remove FUSE 2.
Move the joint arm into the position between the upper limit switch and the lower limit
switch with the crank handle.
UPPER LIMIT SWITCH / LOWER LIMIT SWITCH (connected with the limit switch cables: yellow and
green) Check the current flows between the points, “NO”−”COM” with the tester.
The following cases show the normal conditions:
-A short is found when the lever of the limit switch is pressed.
-An open is found when the lever of the limit switch is released.
- The following voltages are detected, with the FUSE 2 removed and the breaker of your
ship ON.
※When the plus lead of the tester is connected to “COM” and the minus lead is connected to
“NO”, if 0V is detected with the limit switch ON and approx.7.3V with the limit switch OFF.
THE SENSOR LAMP FOR THE LIMIT SWITCH (connected with the limit switch cables: white and brown)
It is the ON/OFF switch of the sensor lamp for the monitor.
FIGURES OF LIMIT SWITCH CIRCUIT
THE SYMPTOMS OF FAULTY LIMIT SWITCH
UPPER LIMIT SWITCH CAN NOT BE SET “ON”:
The hoist stops after going over the upper limit switch even if the power of the monitor is
OFF.
The fuse 2 will blow, because the hoist motor circuit keeps working even if the hoist is
stopped.
It damages the hoist motor circuit and hoist motor.
LOWER LIMIT SWITCH CAN NOT BE SET “ON”:
When turning the power of the monitor on, the hoist starts to be lowered and reaches the
lower damper rubber after going over the lower limit switch and then stops there.
The fuse 2 will blow, because the hoist motor circuit keeps working even if the hoist is
stopped.
It damages the hoist motor circuit and hoist motor.
Some dust or dirt attached on the limit switch might be the cause of malfunction.
When the hoist is on the lower position than the upper limit switch, it is always raised after putting
FUSE 2 back and turning the breaker of your ship ON. If the hoist stops on the halfway, another
cause is suspected.
-9-
HOW TO CHECK THE LIMIT SWITCH
THE SYMPTOMS OF FAULTY LIMIT SWITCH

NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
-10-
Sonar Scanning stops intermittently.
Sonar Scanning stops.
DATA (-TX,-RX) NG appears on
the MENU 2 screen. Refer to "WAITING" stays more than 2 minutes
TRAIN NG appears on the MENU 2
screen.
Does the Train Motor sound?
Check 12 Volt is present at
J8-No.2 in Main PCB for Hull
Unit. Power Supply PCB in Hull
Unit portion
Check the waveform at J8-
No.3 output from Hall IC is
normal.
Soundome
Main PCB in Hull Unit portion
Check 15Volt is present at J2-
No.5 in Drive PCB for Hull Unit.
Check the waveforms of No.1,
No.2, No.3 and No.4 at J1 are
normal.
Check the waveforms of J1-
No.1, No.2, No.3 and No.4 are
normal.
Main PCB in Hull Unit portion
Power Supply PCB in Hull Unit
portion
Soundome
Motor Drive PCB

Refer to the Hoist does not raise or lower the soundome.
Refer to the "WAITING" stays more than 2 minutes.
[Bearing 0°and Scanning]
Bearing does not show 0°after Train starts.
Scanning starts after lowering the hoist and turning the Limit Switch on even if Bearing does not
show 0°
"MENU 2" screen shows SELF CHECK -TRAIN NG
0°can not be adjusted while bearing.
Scanning is normal other than stopping temporarily.
"MENU 2" screen shows SELF CHECK -TRAIN NG
0°can not be adjusted and scanning stops occasionally.
"MENU 2" screen shows SELF CHECK -TRAIN NG only when the scanning stops intermittently.
Scanning is normal, though Train is inactive.
"MENU 2" screen shows SELF CHECK -TRAIN NG
[When Signal cable disconnected while operating.]
Hoist raises
Scanning stops
"MENU 2" on the screen shows:
SELF CHECK
DATA-TX NG
DATA-RX NG
DATA OK
HOIST OK
TILT OK
TRAIN OK
ROM-VER OK
OTHERS OK
-11-
"WAITING" stays more than 2 minutes and then "CHECK FUSE AT CONTROL-BOX" appears next.
Normal Display does not appear on the screen even when Sonar Mode is set.
(HOIST NG)
Scanning stops when Gain Dial/Far Gain Dial is turned.
Scanning stops when a Key is pressed.

* Turn off power to the Hoist system and keep the Hoist neither being lowered nor raised.
-12-
No lighting of Sensor Lamp (LED)
Hull Unit
Control Box (inside)
Limit Switch
AUDIO
Plug Monitor
Remove the Connector J11 of Limit Switch
in Hull Control Box and short the line
between No.5 and No.6 at J11 in Main PCB
for Hull Unit.
(Audio plug for Monitor is connected.)
Short the line between No.3 and 4 at the
Audio receptacle.
LED lights.
LED does not light.
LED lights.
LED does not light.
Limit Switch
NG
Monitor
NG
Monitor
OK
Monitor
OK
Monitor
NG

NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
-13-
LED does not light even if the Hoist is lowered.
Is Limit Switch for LED in the Hoist
portion normal?
Remove the Connector J3 in
Monitor Control PCB and check if
there is short circuit in the
connector No.1 and No.3 you pulled
or not.
Limit Switch for LED.
Disconnection
Control PCB
Display does not change even if the tilt has been changed.
The depth readout is abnormal when Bottom Scanning is selected.
Check 15V is present at J2-
No.10 in Motor Drive PCB. Power Supply PCB in Hull Unit portion
Are the waveforms of J2-No.6,
No.7, No.8, and No.9 normal?
Soundome
Are the waveforms of J1-No.5,
No.6, No.7, and No.8 normal?
Motor Drive PCB
Hull Unit portion Main PCB

NO
YES NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
[Transducer Disconnection]
Remove J2 in the TR PCB and set the tester to the 100M ohm or more range between the connector
No.1 and No.3.
Connect the red or black lead of the tester alternately.
If it is normal, the indicator will move a little.
If the indicator will not move, the disconnection is suspected.
If there is a resistance value, seawater may invade the Soundome.
-14-
No Picture Display on the screen when scanning.
Is there a transmission line in red in
the center of the screen?
Consult Low Sensitivity.
Nothing has changed when Gain
Control/TVG is turned into
level 10.
Soundome
Is the transducer normal?
Hull Unit portion
Main PCB
TR PCB
Check Pin on the TR PCB
J1-No.2: 12Volt
J1-No.5: 70Volt
(or 85Volt in case Power
Supply PCB-85Volt)
Is the output voltage normal when
J1 in TR PCB is removed?
Are the trigger waveforms seen
at J3-No.1 in the TR PCB
normal?
Hull Unit portion
Main PCB TR PCB Power Supply PCB
Does the whole screen turn into
red when J3 is removed from
TR PCB?

NO
YES
NO
YES
NO
YES
NO NO
YES YES
NO
NO
YES
* DUMMY RESISTANCE * OUTPUT WAVEFORM （Transducer−GND）
120Ω／0.0057μＦ 160Ω／375μH
（180kHz） （80kHz） 180kHz：500Vp-p
(or 600Vp-p in case Power Supply PCB-85V)
80kHz：535Vp-p
(or 650Vp-p in case Power Supply PCB-85V)
Use the over 10W and 1.5kV pressure-resistant dummy resistance.
Use the dummy resistance just for the confirmation of the output waveform.
Do not flow the current for a long time. Otherwise it will cause fire.
-15-
Only the surface echo is displayed.
The sensitivity is poor.
The picture does not change even if the Gain or Far Gain Control dial is turned.
Set TX POWER D in
FUNCTION SET, MENU2.
Is TX POWER D set?
Reset TVG curve setting in
FUNCTION SET, MENU2.
Is TVG CURVE setting changed
from the user setting?
Does Picture Display on the
screen change by turning
Gain/Far Gain Control dial?
TR PCB J1-No.2: 12V & J1-No.5: 70V
(or 85Volt in case Power Supply PCB-85V)
Are the output waveforms are normal?
Are the output waveforms
normal when replacing
Transducer with Dummy?
*
* To be continued to the next page.
Hull Unit portion
Power Supply PCB
Soundome TR PCB

*
NO
YES
NO
YES
NO
YES
NO
YES
-16-
Monitor portion
Control PCB
Does voltage at J2-No.3
change when Gain/Far Gain
Control dial are turned?
Hull Unit portion
Main PCB
Are the waveforms seen between
J6-No.1 and No.8 in Main PCB for
Hull Unit portion when Gain 0 and
Far Gain 10 are selected?
0Volt is present when Gain 0 is selected.
5Volt is present when Gain 10 is selected.
Are the waveforms of check pin
(CP) B normal?
Does the waveform at J3-No.3
in Main PCB for Hull Unit
change when Gain/Far Gain dial
are turned?
TR PCB

[Soundome Check by using a tester]
The temperature sensor is connected to the No.1 and No.2 pins of XHP-5 (5P connector) and it is
normal when the resistance value of a temperature sensor at 25C., 5k ohm is covered.
In case of other temperatures
0℃ approx.17k ohm
10℃ approx.10k ohm
20℃ approx.6.3k ohm
30℃ approx.4k ohm
When Train Motor is normal, there is 25 ohm of resistance value between check pins No.1 (or No.2 to
No.4) and XHP-10-B (10P connector) - No.5.
When Tilt Motor is normal, there is 21 ohm of resistance value between check pins XHP-10-B (10P
connector) - No.10 and No.6 (or No.7 to No.9).
-17-
Alignment for soundome cable connectors
1
2
3
4
5
6
7
8
9
10
TR MOTOR1
TR MOTOR2
TR MOTOR3
TR MOTOR4
TR MOTOR
COM
TL MOTOR1
TL MOTOR2
TL MOTOR3
TL MOTOR4
1
2
3
4
5
1
2
3
TEMP
12V IN
HALL IC
GND
N.C.
TRANSDUCER
N.C.
TRANSDUCER

NO
YES YES
NO
NO
YES
NO
YES
NO
YES
-18-
S-1800M10
Nothing appears on the screen when powered.
Replace the fuse
Is fuse in Monitor portion OK?
Is fuse OK after new fuse
replacement?
Are 5Volt at J5-No.1 and 5Volt at
J5-No.3 present in the power
su
pp
l
y
board?
Are the 5V and 12V lines on the
power supply board normal when J13
on the main board is removed?
Are the waveforms of V-SYNC,
H-SYNC and RGB at J15 in the
main PCB normal?
LCD UNIT MAIN PCB POWER SUPPLY
PCB
RGB：
R2〜R5
G2〜G5
B2〜B5

NO
YES
NO
YES
NO
YES
NO
YES
[BACKLIGHT FOR LCD UNIT]
When one side does not light, either the upper part or the lower part gets dark.
When both sides do not light, no picture is seen.
Contact your authorized dealers when replacing the backlights.
-19-
S-1800M10
Screen gets bright, but nothing appears
POWER SUPPLY PCB
Verify that 5 volt is present in Main
PCB for Monitor portion.
Verify there is RGB OUTPUT
at J15 in Main PCB normal.
RGB：
R2〜R5
G2〜G5
B2〜B5 LCD UNIT
MAIN PCB
S-1800M10
Screen doesn't change into bright, even if the brightness dial is turned.
Verify if the voltage changes at
J2-No.2 in Control PCB when
the brightness dial is turned. Change brightness volume.
Verify if the voltage changes at
J5-No.3 in Main PCB when the
brightness dial is turned. Disconnection in Main PCB
LCD UNIT
(INVERTER)
(BACKLIGHT)