AS RTP9007S User manual

2021.01.25
RTP9007S
TESTER FOR VOLTAGE REGULATORS
OF ALTERNATORS
OPERATION MANUAL
ON DIAGNOSTICS OF ALTERNATORS
AND VOLTAGE REGULATORS
UNIQUENESS
TRAINING
SERVICE
INNOVATION
WARRANTY
QUALIT Y

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CONTENTS
INTRODUCTION ................................................................................................................................................... 2
1 TESTER DESCRIPTION..................................................................................................................................... 3
2 TESTER MENU...................................................................................................................................................8
2.1. Test modes menu...............................................................................................................................10
3 INTENDED USAGE .......................................................................................................................................... 14
3.1 Safety regulations............................................................................................................................... 15
4 DIAGNOSTICS OF VOLTAGE REGULATORS ............................................................................................... 15
4.1 Voltage regulator connection.......................................................................................................... 15
4.2 Diagnostics of voltage regulators of Lamp type......................................................................... 21
4.3 Diagnostics of voltage regulators of RLO, RVC, C KOREA types..............................................22
4.4 Diagnostics of voltage regulators of C JAPAN type....................................................................23
4.5 Diagnostics of voltage regulators of SIG, P-D types..................................................................23
4.6 Diagnostics of voltage regulators of COM 12V and 24V types.................................................23
5 DIAGNOSTICS OF ALTERNATORS ...............................................................................................................24
Appendix 1.........................................................................................................................................................26
Appendix 2.........................................................................................................................................................29
Appendix 3.........................................................................................................................................................32

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INTRODUCTION
The actual instruction describes the technique of voltage regulator diagnostics (hereinafter
“the voltage regulator”) with tester RTP9007S (hereinafter “the tester”) to detect faults in
alternator and voltage regulator performance.
WARNING! The actual instruction does not provide a description of all the diagnostic
aspects. If you lack knowledge or experience, we recommend you to take training at the
equipment manufacturing facility.
WARNING! Company MSG Equipment shall not be held liable for any damage to the tester
resulted from its improper use.
The tester performs the following operations:
1. Performance evaluation of automotive alternators with electromagnetic excitation and
nominal voltage of 12/24V. An alternator can be tested either directly in a car or on the test
bench that provides its drive.
2. Performance evaluation of voltage regulators with electromagnetic excitation and nominal
voltage of 12/24V separately from alternators. The diagnostics of alternators and voltage
regulators is carried out on the following parameters:
- Setting accuracy of stabilizing voltage;
- Assessment of control lamp performance;
- FR (load on alternator).
For COM regulators (additionally):
- ID;
- Protocol;
- Data exchange rate;
- Type of LIN protocol;
- Self-diagnostics errors.

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1 TESTER DESCRIPTION
The tester is a portable device, its functions controlled via the touch-screen (Fig.1).
Figure 1 - General view of the tester
In the upper part of the device, there is a terminal for connection of diagnostic cables (Fig.2)
Figure 2 – Terminal for connection of diagnostic cables
There is a USB Type-C port in the bottom part of the tester, through which the power is supplied
to the tester during the diagnostics of voltage regulators. The USB port serves as well for
connection of the tester to a computer either for software updating or for data copying (Fig.3).

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Figure 3 - USB port, Type-C
A diagnostic cable for voltage regulators (Fig.4) and adapter cables (Fig.5) for easy connection
to the voltage regulator output terminals are included in the tester set.
Figure 4 – Diagnostic cable for voltage regulators MS-33502
Figure 5 – Adapter cables for diagnostics
of voltage regulators

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The diagnostic cable for voltage regulators (Fig.4) has the following color markings (Table 1):
•Red cable with a clip – B+ – voltage regulator terminal B+ (terminal 30);
•Black cable with a clip – B- – voltage regulator terminal B- (GND, terminal 31);
•Orange cable with a terminal – S(Sense pin) – through this terminal, the voltage
regulator measures the battery voltage and compares it with the alternator/voltage
regulator output voltage. This cable is connected to terminals S of the voltage
regulator;
•Red cable with a terminal – IG (Ignition) – the ignition terminal (terminal 15, A, IG);
•White cable with a terminal – FR – through this terminal, the data on the voltage
regulator load are transmitted. The cable connects to FR, DFM, and M terminals of the
voltage regulator;
•Grey cable with a terminal – D+ – the terminal through which the control lamp of the
voltage regulator is connected to terminals D+, L, IL, and 61 of the voltage regulator;
•Yellow cable with a terminal – GC – for connection of the tester to the control channel
of the voltage regulator through voltage regulator terminals COM, SIG, and others;
•Green cables with clips – F1, F2 – for connection of the tester to the brushes of the
voltage regulator or their corresponding terminals: DF, F, FLD;
•Blue cables with clips – ST1, ST2 – for connection of the tester to the stator terminals
of the voltage regulator: P, S, STA, Stator.

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Table 1 – Color markings of cable MS-33502
Clip/Terminal
Tester output
terminal
B+
B-
S
IG
FR
D+
GC
F1, F2
ST1, ST2

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The equipment set includes a cable for alternator diagnostics (Fig.6).
Figure 6. MS-33501 – Diagnostic cable for alternators
The diagnostic cable (Fig.6) has the following color markings:
•Red clip, big – „В+”;
•Black clip, big – „В-”;
•Orange clip, small - „S” (Sense pin);
•Red clip, small – „IG” (Ignition);
•White clip, small – „FR”;
•Grey clip, small – „D+”;
•Yellow clip, small – „GC”.

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2 MENU TESTERA
The tester main menu (Fig. 7) contains:
Figure 7. Tester main menu
1 – Button to enter a search menu of the voltage regulator database;
2 – Button to enter the menu for selection of the tested voltage regulator type;
3 – Button to enter the menu for selection of the tested alternator type;
4 – Tag number of the connected cable;
5 – Current power supply voltage;
6 – Power supply of the tester:
– USB,
– BATTERY.
7 – Button to enter the tester settings.

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The tester is supplied with an integrated database of voltage regulators along with their
connection diagrams. Press to enter the database search menu (Fig.7, n.1).
Figure 8 - Database search menu
Figure 9 - Menu for selection of the tested voltage regulator type

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Press the button with the required type of the voltage regulator to enter the alternator/voltage
regulator test mode.
Press to return to the main menu.
2.1 Test modes menu
Upon entering the test mode for voltage regulators, the following information will appear on
the screen (Fig.10):
Figure 10 - Diagnostic screen information
1 – Preset stabilizing voltage (for controlled voltage regulators);
2 – Preset rpm (this parameter will not be displayed in alternator test mode);
3* – Button to check the SENSE terminal through which the voltage regulator measures the
battery voltage (red indication: the voltage across SENSE is lower by 0.5V-0.7V than the voltage
across B+);
4 - Duty cycle of PWM signal received through FR channel (the proportion of the rotor winding
“on” time);
5 – Measured stabilizing voltage;

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6 – Test mode nominal voltage;
7 – Voltage regulator type;
8* – Button to switch the mode of data readout through FR channel;
9* – Switch starting button;
10 - Alternator control lamp indicator (for voltage regulators that directly control the lamp).
* Color indication of the button:
red – ON;
white – OFF.
The diagnostic screen for voltage regulators of COM type displays the following information:
alternator voltage regulator
Figure 11 - Diagnostic screen for alternators/voltage regulators (12/24V) of COM type
„ID” - voltage regulator identification number. The engine control unit identifies the type of the
installed alternator by this number;
„Type” – voltage regulator type. The type codes of voltage regulators operating under LIN
protocol are as follows: A1, A2, A3, A4, B1, B2, B3, B4, C3, D1, D2, E1;
„Duty” - PWM signal duty cycle (the proportion of the rotor winding “on” time);

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„Version LIN” – indicator of voltage regulator protocol version (LIN1 or LIN2);
„Errors” - indicator of errors transmitted by the voltage regulator to the engine control unit.
Types of potential errors:
• E – electrical error;
• M – mechanical error;
• TH – thermal error.
„Speed” - indicator of data exchange rate under LIN protocol supported by a COM voltage
regulator. The following rate values may be displayed:
• „L” – 2400 baud (low);
• „M” – 9600 baud (medium);
• „H” – 19200 baud (high).
Figures 12-15 show the information displayed when different voltage regulator types are tested.
alternator voltage regulator
Figure 12 - Diagnostic screen for alternators/voltage regulators of RLO, RVC,
C KOREA types

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alternator voltage regulator
Figure 13 - Diagnostic screen for alternators/voltage regulators of C JAPAN type
alternator voltage regulator
Figure 14 - Diagnostic screen for alternators/voltage regulators (12/24V) of Lamp type

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alternator voltage regulator
Figure 15 - Diagnostic screen for alternators/voltage regulators of SIG and P/D types
3 INTENDED USAGE
1. Use the tester as intended (see Section 1 of User Manual).
2. The tester is designed for indoor use. Be aware of the following operating constraints:
2.1. Observe the environmental conditions for the equipment operation specified in Section 2
of User Manual. Do not use the device when the air temperature is negative or the humidity is
high (over 75%). Do not turn on the tester immediately after moving it from a cold room (or
from outdoors) into a warm one as its components may be covered with a condensate. Keep
it off at room temperature for at least 30 min.
2.2. Avoid leaving the device in direct sunlight.
2.3. Keep away from heating devices, microwaves, and other temperature-raising equipment.
2.4. Avoid dropping the tester or spilling technical liquids on it.
2.5. Any interference with the electric diagram of the device is strictly prohibited.
2.6. Make sure the crocodile clips are completely insulated before connecting them to the
alternator/voltage regulator terminals.
2.7. Avoid the crocodile clips short circuit between themselves or to any conductive parts of a
vehicle, including its body.
2.8. Do not put the tester on the vehicle battery or other elements of the underhood space.
Avoid short circuit of the tester housing to the conductive parts of a vehicle.

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2.9. Do not use the device with a faulty power unit.
2.10. Turn off the tester when it is not in operation.
In case of failure, contact the technical support service or sales representative.
3.1 Safety regulations
The operation of the tester requires technical proficiency of the operator, he must be authorized
to operate certain types of test benches (devices) and receive safety training.
4 VOLTAGE REGULATOR TESTING
Generally, most voltage regulators are tested as follows:
1) Connection of a voltage regulator to the tester;
2) Selection of the type and nominal voltage of the tested voltage regulator;
3) Assessment of the control lamp operability: when speed is about 0 rpm, the battery indicator
must light up (red). As the speed increases up to 800-1200 rpm, the indicator must go out.
4) Assessment of the „S” terminal operability;
5) Assessment of the voltage regulator capability to adjust to the preset stabilizing voltage. Use
a cursor (Fig.10, n.1) to set the voltage.
WARNING! The test mode (Fig.6) should correspond to the type of the tested voltage
regulator.
Connect both cable MS-33502 and a power unit equipped with «Quick Charge 2.0» to the tester
through USB Type-C port to launch the diagnostic procedure.
WARNING! If the connected power unit doesn’t feature «Quick Charge 2.0», the tester can
test 12V voltage regulators only.
WARNING! Operation of some TM Bosch voltage regulators requires a heavy current, the
tester cannot deliver. Voltage regulators of this type cannot be tested.
4.1 Voltage regulator connection
Assessment of the voltage regulator operability requires a proper connection of the diagnostic
cable to the voltage regulator.
Use the voltage regulator OEM number to search the terminal markings against the database
(Fig.16).

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Figure 16 - Voltage regulator search against the database and search results
Connect the diagnostic cable to the voltage regulator as shown on the diagram.
WARNING! To avoid damage (failure) to the voltage regulator, extra care should be taken
when connecting the cable clips to the contacts in the terminals. Use either a well-insulated clip
(Fig.17) or a proper adapter cable (Fig.5).
Figure 17 - Connection of cable clips to the contacts in the terminals
When the connection is made, press «OK» - the tester will automatically switch over to the test
mode appropriate for the tested voltage regulator. Then, proceed to the voltage regulator
testing (the process is described below).

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If the information on the markings of the voltage regulator terminals cannot be found in the
database, research online. Appendix 3 is yet another source of information. There you can find
connection diagrams of the most common voltage regulator types. Use the diagram with
terminal markings found online and the examples below to connect the diagnostic cable.
Figure 18 shows a diagram (an example) for connection of voltage regulator ARE1054.
Figure 18 - Voltage regulator ARE1054
Identify the type of the voltage regulator by the terminal contacts shown in Fig.18 and use
information set out in Appendices 1, 2 of the actual Instruction. Shown here are terminals DFM
and L(RVC) (can also be marked as L(PWM)). By terminal L (RVC) we identify this voltage regulator
as RVC type.
Then, using Appendix 1, we determine which clips (connectors) of the diagnostic cable must be
connected to the voltage regulator. A diagram of voltage regulator ARE1054 connection to the
tester is shown both in Table 2 and Figure 19.
Table 2 – Connection of voltage regulator ARE1054 to the tester
Voltage regulator
terminal
Tester output terminal
Color marking of
cable
DFM
FR
white
L(RVC)
GC
yellow
Ps
ST1
blue
B+
B+
red
DF
F1
green
F2
green
B-
B-
black

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Figure 19 - Diagram of voltage regulator ARE1054 connection to the tester
Figure 20 shows a diagram of voltage regulator ARE6076 connection as an example.
Figure 20 - Voltage regulator ARE6076
The voltage regulator type is identified by the terminal contacts and based on the information
set out in Appendices 1, 2. In the example given, terminals IG, S, FR(M) do not identify the type
of the voltage regulator. Terminal L identifies it as a Lamp type.
Then we refer to Appendix 1 to determine which clips (connectors) of the diagnostic cable must
be connected to the voltage regulator. The connection diagram of voltage regulator ARE6076 is
shown in both Table 3 and Figure 21.