Sony HKDV-900 User manual

HD DIGITAL VIDEO CONTROLLER
HKDV-900
MAINTENANCE MANUAL
1st Edition (Revised 2)
Serial No. 10001 and Higher

HKDV-900
!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
Attention-when the product is installed in Rack:
1. Prevention against overloading of branch circuit
When this product is installed in a rack and is
supplied power from an outlet on the rack, please
make sure that the rack does not overload the supply
circuit.
2. Providing protective earth
When this product is installed in a rack and is
supplied power from an outlet on the rack, please
confirm that the outlet is provided with a suitable
protective earth connection.
3. Internal air ambient temperature of the rack
When this product is installed in a rack, please make
sure that the internal air ambient temperature of the
rack is within the specified limit of this product.
4. Prevention against achieving hazardous
condition due to uneven mechanical loading
When this product is installed in a rack, please make
sure that the rack does not achieve hazardous
condition due to uneven mechanical loading.

1 (E)
HKDV-900
Table of Contents
Manual Structure
Purpose of this manual ........................................................................................ 3 (E)
Related manuals................................................................................................... 3 (E)
Contents ............................................................................................................... 4 (E)
1. Service Overview
1-1. Main Parts Layouts ............................................................................... 1-1 (E)
1-2. Removing/Reinstalling the Cabinets ..................................................... 1-2 (E)
1-2-1. Top Panel ............................................................................. 1-2 (E)
1-2-2. Front Panel ........................................................................... 1-2 (E)
1-3. Removing/Reinstalling the Boards ....................................................... 1-3 (E)
1-3-1. CP-365 Board ....................................................................... 1-3 (E)
1-3-2. CP-364 Board ....................................................................... 1-3 (E)
1-4. Replacing the Rotary Encoder .............................................................. 1-4 (E)
1-5. Replacing the Switching Regulator ....................................................... 1-5 (E)
1-6. Replacing the NV-RAMs ...................................................................... 1-5 (E)
2. Troubleshooting
2-1. Normal Diagnostic Function (Power ON Test) .................................... 2-1 (E)
2-2. Self Diagnostic Mode ............................................................................ 2-1 (E)
2-2-1. Required Tool ....................................................................... 2-2 (E)
2-2-2. Location of Knobs and Buttons on the Front Panel ............. 2-2 (E)
2-2-3. Starting and Quitting of the Self Diagnostic Mode .............. 2-3 (E)
2-2-4. Selecting and Executing of the Test Item ............................ 2-3 (E)
2-2-5. Test Procedure ...................................................................... 2-4 (E)
2-3. Troubleshooting .................................................................................... 2-8 (E)
2-3-1. Troubleshooting for the Power-on Sequence Error ............. 2-8 (E)
2-3-2. Troubleshooting for Test Selection Error .......................... 2-12 (E)
2-3-3. Troubleshooting for ROM Version Display Error .............2-13 (E)
2-3-4. Troubleshooting for ROM Test Error ................................ 2-13 (E)
2-3-5. Troubleshooting for RAM Test Error ................................ 2-13 (E)
2-3-6. Troubleshooting for NV-RAM Test Error ......................... 2-14 (E)
2-3-7. Troubleshooting for LED Test Error .................................. 2-14 (E)
2-3-8. Troubleshooting for 7SEG LED Test Error .......................2-18 (E)
2-3-9. Troubleshooting for Switch Test Error .............................. 2-18 (E)
2-3-10. Troubleshooting for Rotary Encoder Test Error ................ 2-20 (E)
2-3-11. Troubleshooting for RS-422A Test Error .......................... 2-22 (E)

2 (E) HKDV-900
3. Spare Parts
3-1. Notes on Repair Parts .................................................................................. 3-1
3-2. Exploded View ............................................................................................ 3-2
3-3. Electrical Parts List ..................................................................................... 3-4
3-4. Packing Materials & Supplied Accessories .............................................. 3-15
3-5. Power Cords .............................................................................................. 3-15
4. Semiconductor Pin Assignments
5. Block Diagram
Overall ......................................................................................................... 5-1
6. Schematic Diagrams
CP-364 ......................................................................................................... 6-2
CP-365 ......................................................................................................... 6-8
7. Board Layouts
CP-364 ......................................................................................................... 7-2
CP-365 ......................................................................................................... 7-4

3 (E)
HKDV-900
Purpose of this manual
This is the maintenance manual of the HD Digital Video Controller HKDV-900.
This manual is intended for use by service engineers, and describes how to maintain
the unit, and contains information on primary services (removing the boards, self-
diagnostics, troubleshooting, parts list, semiconductor pin assignments, block
diagram, schematic diagrams and board layouts).
Related manuals
Beside this Maintenance Manual, the following manuals are available for the unit:
..
..
.Operation Manual (Supplied with the unit)
This manual describes the precautions during operation of the unit and describes
each block.
Part number: 3-204-566-0X
..
..
.Installation Manual (Supplied with the unit)
This manual describes the operating environment, power supply, installation
space, matching cables, signal inputs/outputs, setting the switches on board and
rack mounting.
Part number: 3-204-595-0X
..
..
.“Semiconductor Pin Assignments” CD-ROM (Available on request)
This “Semiconductor Pin Assignments” CD-ROM allows you to search for
semiconductors used in B&P Company equipment.
Semiconductors that cannot be searched for on this CD-ROM are listed in the
maintenance manual for the corresponding unit. The maintenance manual contains
a complete list of all semiconductors and their ID Nos., and thus should be used
together with the CD-ROM.
Part number: 9-968-546-XX
Manual Structure

4 (E) HKDV-900
Contents
The following is a summary of all the sections of this manual.
Section 1 Service Overview
Contains the location of the main parts, and describes how to remove/reinstall the
cabinets and boards, replace the rotary encoder, switching regulator, and NV-RAM.
Section 2 Troubleshooting
Explains the self-diagnostics and troubleshooting.
Section 3 Spare Parts
Contains the exploded view and the spare parts list.
Section 4 Semiconductor Pin Assignments
Contains information on semiconductors used for the unit.
It includes a complete list of the semiconductors and their ID Nos. for retrieving
information on “Semiconductor Pin Assignments”CD-ROM, which is available
separately.
Please refer to this section together with the “Semiconductor Pin Assignments”CD-
ROM.
Information on the semiconductors not contained in the CD-ROM at the time of
issue of this manual, if any, is given in this section as well.
Section 5 Block Diagram
Contains the overall block diagram.
Section 6 Schematic Diagrams
Contains the schematic diagrams for mounted circuit boards.
Section 7 Board Layouts
Contains the board layouts for mounted circuit boards.

1-1 (E)
HKDV-900
Section 1
Service Overview
1-1. Main Parts Layouts
No. Board name Function
1CP-364 board CPU and Volume Board
2CP-365 board 7SEG LED and Switch Board
CP-364 board
CP-365 board
2
2
Switching regulator
Rotary encoder

1-2 (E) HKDV-900
1-2. Removing/Reinstalling the Cabinets
1-2-1. Top Panel
1. Remove the three screws, and then remove the top
panel in the direction of the arrow.
2. Re-attach the top panel in reverse order of step 1.
PSW3 x6
Top panel
1-2-2. Front Panel
1. Remove the top panel. (Refer to Section 1-2-1.)
2. Remove the eight knobs.
3. Remove the four screws (PSW4 x10) to remove the
right and left rack angles.
4. Remove the two screws (PSW3 x6), and then remove
the front panel in the direction of the arrow.
5. Re-attach the front panel in reverse order of steps 2
to 4.
PSW3 x6
PSW4 x10
PSW3 x6
PSW
4 x10
Rack angle
Knob
Front panel
Rack angle
1-2. Removing/Reinstalling the Cabinets

1-3 (E)
HKDV-900
1-3. Removing/Reinstalling the Boards
1-3-1. CP-365 Board
1. Remove the top panel. (Refer to Section 1-2-1.)
2. Remove the front panel. (Refer to Section 1-2-2.)
3. Insert a flat screwdriver into the groove of the connec-
tors (CN1 and CN2), push it to the front (Fig. 1) and
disconnect the harnesses from the connectors. (Fig. 2)
4. Remove the five screws to remove the CP-365 board.
n
Be careful not to drop the isolating plate because it is
not fixed.
5. Re-attach the CP-365 board in reverse order of steps 3
and 4.
6. After replacing the CP-365 board, execute the self
diagnostic tests. (Refer to Section 2-2, “Self Diagnos-
tic Mode”.)
Fig.1
Fig.2
PSW3 x6
CP-365 board
Isolating plate
Flat screwdriver
Groove
Connector
Connector
(CN1)
Connector
(CN2)
Harness
1-3-2. CP-364 Board
1. Remove the top panel. (Refer to Section 1-2-1.)
2. Remove the front panel. (Refer to Section 1-2-2.)
3. Remove the CP-365 board. (Refer to Section 1-3-1.)
4. Disconnect the harnesses from the connectors (CN402
to CN409) on the CP-364 board.
5. Remove the two screws which fixing the power
switch.
6. Remove the five screws, and then remove the holder
assembly in the direction of the arrow.
7. Remove the screw to remove the harnesses (green +
yellow).
8. Disconnect the two harnesses (white and brown) from
the AC inlet.
n
Slide the terminal cover in the direction of arrow A, and
then pull the terminal block out in the direction of arrow B.
PSW3 x6
CN402 to CN409
CP-364 board
PSW3 x6
PSW3 x6
PSW3 x6
Holder assembly
Power switch
PSW
4 x8
AC inlet
Harness
(white)
Harness
(green +
yellow)
Harness (brown) AC inlet
Terminal cover
Terminal block
B
A
1-3. Removing/Reinstalling the Boards

1-4 (E) HKDV-900
9. Remove the eight hexagon screws.
10. Remove the six screws (PSW3 x6) to remove the CP-
364 board.
n
The SW cap is not a component of the CP-364 board.
When replacing the CP-364 board, remove the SW cap
and reuse it.
11. Re-attach the CP-364 board in reverse order of steps 4
to 10.
12. After replacing the CP-364 board, check the NV-RAM
and execute the self diagnostic test. (Refer to Sections
1-6, “Replacing the NV-RAMs”, 2-2, “Self Diagnostic
Mode”.)
1-4. Replacing the Rotary Encoder
1. Remove the CP-365 board. (Refer to Section 1-3-1.)
2. Disconnect the harnesses from the connectors (CN402
to CN409) on the CP-364 board.
3. Remove the two screws which fixing the power
switch.
4. Remove the five screws, and then remove the holder
assembly in the direction of the arrow.
5. Remove the hexagon nut and washer to remove the
replacing rotary encoder from the holder assembly.
6. Attach a new rotary encoder in reverse order of steps 2
to 5.
7. After replacing the rotary encoder, execute the self
diagnostic test. (Refer to Section 2-2, “Self Diagnostic
Mode”.)
Power switch
PSW3 x6
PSW3 x6
CP-364 board
Hexagon
screws
SW cap
PSW3 x6
CN402 to CN409
CP-364 board
PSW3 x6
PSW3 x6
PSW3 x6
Holder assembly
Power switch
Rotary encoder
Hexagon nut
Washer
Holder assembly
1-3. Removing/Reinstalling the Boards
1-4. Replacing the Rotary Encoder

1-5 (E)
HKDV-900
1-5. Replacing the Switching Regulator
w
.The switching regulator is a critical part to safety.
Replacing parts other than the specified switching
regulator may result in a fire or electrical shock.
.The switching regulator is used in the unit.
Before replacement, turn off the power switch, discon-
nect the plug from the outlet, and wait for one minute at
least.
If touching the switching regulator soon after turning off
the power switch, an electric shock may be caused.
Replacement Part
Part name : Switching regulator
Part No. : !1-413-917-12
1. Remove the CP-364 board. (Refer to Section 1-3-2.)
2. Remove the seven screws (PSW4 x8) from the
switching regulator to disconnect the harnesses
(white : one, brown : one, green +yellow : one,
black : two, red : two).
3. Remove the two screws (PSW3 x6) to remove the
switching regulator from the CP-364 board.
4. Attach a new switching regulator in reverse order of
steps 2 and 3.
5. After replacing the switching regulator, execute the
self diagnostic test. (Refer to Section 2-2, “Self
Diagnostic Mode”.)
1-6. Replacing the NV-RAMs
The two NV-RAMs which have the ID to make CPU
identify the each NV-RAM and customized data (adjust-
ment state of each output signal and setting value) are used
in the CP-364 board. When one of the NV-RAMs is
replaced, these data will be lost.
Ref. No. (Address) Contents of holding data
IC201 (G-1/CP-364) ID, adjustment state of each
output signal and setting value
(user set value)
IC203 (F-1/CP-364)
Adjustment/Re-setting after Replacing the NV-
RAM
When replacing one of NV-RAMs, adjust and re-set the
data following steps below.
n
Even if either of the NV-RAMs is replaced, be sure to
follow the steps below.
1. Turn off the power switch.
2. Remove the top panel. (Refer to Section 1-2-1.)
3. Set switches S100-7 and S100-8 (J-3) on the CP-364
board to ON.
4. Set the power switch to ON.
After all of the LEDs on the front panel are lit on and
off, confirm that the 7-segment LED indicates “99”,
“88”, “77”, “66”, “55”, “44”, “33”, “22”, “11”and
“00”with interval of 0.5 seconds in this order, and
finally indicates “01”.
5. Turn off the power switch.
6. While pressing the “CANCEL”button on the front
panel, set the power switch to ON. Confirm that the 7-
segment LED indicates “99”, “88”to “11”and “00”
with interval of 0.5 seconds in this order. Then the
indication is repeated starting from “01”, “02”to “FE”,
“FF”several times and finally indicates “01”and
finally indicates “01”.
n
Keep pressing the “CANCEL”button until all of the
above countdown indications are completed.
7. When the 7-segment LED display indicates “01”, turn
off the power switch.
8. Set the switches of S100-7 and S100-8 (J-3) to OFF.
9. Re-set and customize the data as original.
For the details of the setting procedure, refer to the
sections of “Output Signal Adjustment”and “Saving
and Recalling Adjustments and Settings”in the
Operation Manual.
1-5. Replacing the Switching Regulator
1-6. Replacing the NV-RAMs
CP-364 board
PSW3 x6
Switching regulator
PSW4 x8
Harnesses (red)
Harness (black)
Harness (green +yellow)
Harness (white)
Harness
(brown)

2-1 (E)
HKDV-900
Section 2
Troubleshooting
2-2. Self Diagnostic Mode
This unit allows executing the nine self diagnostic tests
below. (Refer to Section 2-2-3, “Starting and Quitting of
the Self Diagnostic Mode”.)
1. ROM version display
Displays the current ROM version on the 7SEG LED.
2. ROM test
Performs a ROM checksum test to check the memory
operation.
3. RAM test
Performs a RAM read/write test to check the memory
operation.
4. NV-RAM test
Performs an NV-RAM read/write test to check the
memory operation.
5. LED test
Checks that all the LEDs light.
6. 7SEG LED test
Performs a 7SEG LED light test to check the decoding
operation for numeric display.
7. Switch test
Checks the operation of a pushbutton switch.
8. Rotary encoder test
Checks the operation of a rotary encoder.
9. RS-422A test
Performs an RS-422A loop-back test to check the
communication operation.
2-1. Normal Diagnostic Function (Power
ON Test)
This unit executes the tests below automatically when
turning the power ON.
1. ROM (IC103 on the CP-364 board) test
(Error : “E0”)
This performs a ROM checksum test.
The “E0” display blinks on the 7SEG LED and the
operation stops when an error occurs. Replace the
ROM.
2. RAM (IC104 on the CP-364 board) test
(Error : “E1”)
This performs a RAM read/write test (in which cycle
data “00” through “FF”, “FF” and “00” are written
and read for comparison).
The “E1” display blinks on the 7SEG LED and the
operation stops when an error occurs. Replace the
RAM.
3. NV-RAM (IC201, 203 on the CP-364 board) test
(Error : “E2” )
This performs an NV-RAM read/write test (in which
data “FF” and “00” are written and read for compari-
son). But the data of the memory does not change.
The “E2” display blinks on the 7SEG LED and the
operation stops when an error occurs. Replace the
NV-RAM.
4. NV-RAM (IC201, 203 on the CP-364 board)
checksum test (Error : “E3”)
This performs an NV-RAM checksum test.
The “E3” display blinks on the 7SEG LED and the
operation stops when an error occurs. Replace the
NV-RAM.
5. Switch short test (Error : “EE”)
This test confirms that a switch is not short-circuited.
If the switch is short-circuited, the LED of the switch
blinks and the “EE” display blinks on the 7SEG LED
and the operation stops. Replace the short-circuited
switch.

2-2 (E) HKDV-900
2-2-1. Required Tool
1. Connector tool for RS-422A test
In 2-2-5. “9. RS-422A test”of a self diagnostic test, the four connector tools below are required.
n
If all the four connector tools are not used, the RS-422A test is possible.
D-sub 9-pin connector (male) whose pins 2 and 8, and pins 3 and 7 were connected (Other pins are
opened.)
n
The HKDV-900 before modification uses the D-sub 15-pin connector.
D-sub 15-pin connector (male) whose pins 7 and 8, and pins 14 and 15 were connected (Other pins are
opened.)
2-2-2. Location of Knobs and Buttons on the Front Panel
The knobs and buttons described in this section are located as shown below:
Pin No. Signal name
GND
REM TY
REM RX
GND
_
GND
REM TX
REM RY
GND
1
2
3
4
5
6
7
8
9
[D-sub 9-pin . MALE]
_ EXT VIEW _
5
1
96
HD
POWER D1 D2 INPUT
STORE
OUTPUT
LOAD
IMAGE ENHANCER
CONTROL
SELECT
CANCEL
7SEG LED
CROP SQUEEZE
UNITYUNITY UNITY UNITY UNITY PRESET PRESET PRESET
LETTER
BOX
+
_
MASTER Y PB PR SETUP SYNC PHASE FINE _
LED bulit-in
pushbutton
switch
LED bulit-in
pushbutton
switch
Pushbutton
switches
Rotary encoder
LED bulit-in pushbutton switch
Level LED
2-2. Self Diagnostic Mode
Pin No. Signal name
FRAME G
_
REM G
_
REM TX
REM RX
_
REM TY
REM RY
1
2, 3
4
5, 6
7
8
9-13
14
15
_EXT VIEW _
8
1
159
[D-sub 15-pin . MALE]

2-3 (E)
HKDV-900
2-2-3. Starting and Quitting of the Self
Diagnostic Mode
n
After replacing a NV-RAM, the self diagnostic mode
needs to be started up for writing the ID. For more details,
refer to Section 1-6, “Replacing the NV-RAMs”.
Start
1. Turn off the power switch.
2. Remove the top panel. (Refer to Section 1-2-1.)
3. Set the switch S100-8 (J-3) on the CP-364 board to
ON.
4. Re-attach the top panel. (Refer to Section 1-2-1.)
5. Turn on the power switch.
6. Check to see that all LEDs light for only one second.
The test mode starts.
n
If there is an LED that does not light, see Section 2-3-
1, “Troubleshooting for the Power-on Sequence Error”
to clarify the cause.
7. Check to see that the 7SEG LEDs light as “99”,
“88”, “77”, “66”, “55”, “44”, “33”, “22”, “11”
and “00”at intervals of 500 msec.
n
If the 7SEG LED does not light as described above,
the subsequent test cannot be carried out.
See Setion 2-3-1, “Troubleshooting for the Power-on
Sequence Error”or Setion 2-3-7, “Troubleshotting for
LED Test Error”to clarify the cause.
8. Check to see that the 7SEG LEDs display “01”.
(The numeric character indicates the test item number.)
Quit
1. Turn off the power switch.
2. Set the switch S100-8 (J-3) on the CP-364 board back
to OFF.
2-2-4. Selecting and Executing of the Test Item
.To select the test item, select it using the [+]/[_] button
when the test item number is displayed on the 7SEG
LED.
.To execute the test item, press the “STORE”button
when the test item number is displayed.
.To display the test item number, press the “CANCEL”
button while executing all test items.
.All test items are executed repeatedly. To quit repeating
the tests, press the “CANCEL”button.
n
If the [+], [_], “STORE”and “CANCEL”buttons do not
operate as described above, see Section 2-3-2, “Trouble-
shooting for Test Selection Error”to clarify the cause.
Test No. Test item Troubleshooting
01 ROM version display Section 2-3-3
02 ROM test Section 2-3-4
03 RAM test Section 2-3-5
04 NV-RAM test Section 2-3-6
05 LED test Section 2-3-7
06 7SEG LED test Section 2-3-8
07 Switch test Section 2-3-9
08 Rotary encoder test Section 2-3-10
09 RS-422A test Section 2-3-11
ON
1
S100
234 5678
: Switch position
2-2. Self Diagnostic Mode

2-4 (E) HKDV-900
2-2-5. Test Procedure
The detailed operation of each test and its judgment
method are described below.
Each test can be separately and independently executed
without following the specified order.
Usually, follow the order of the test item number to
execute a one-time test.
1. ROM version display
Set the test item number to “01”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
The ROM version is displayed alternating the integral part
and decimal point part for 500 msec. each on the 7SEG
LEDs.
When indicating the integral part, a numeric character is
displayed on the left 7SEG LED. An under-bar on the
right 7SEG LED indicates that it is the integral part
display.
When indicating the decimal point part, two numeric
characters are displayed.
n
If the version is not displayed properly, see Section 2-3-3,
“Troubleshooting for ROM Version Display Error”to
clarify the cause.
To quite the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
2. ROM test
Set the test item number to “02”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
Calculates the checksum in an area of a ROM, and then
compares it with the checksum written in the ROM.
If the comparison result coincides, “PA”is displayed on
the 7SEG LED. If it does not coincide, “Er”indicating an
error is displayed.
n
.If “Er”is displayed, see Section 2-3-4, “Troubleshoot-
ing for ROM Test Error”to clarify the cause.
.If the comparison of the checksums which is more than
two bytes does not coincide, an error cannot be detected
because the checksum is caliculated by simple addition.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
3. RAM test
Set the test item number to “03”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
Writes “ffh”in the every area of the RAM to check that the
written data can be read properly. Next, writes the data of
“aah”, “55h”, and then “00h”to check the reading.
If the test result is properly, “PA”is displayed on the
7SEG LED. If it is not properly, “Er”indicating an error
is displayed on the 7SEG LED.
n
If “Er”is displayed, see Section 2-3-5, “Troubleshooting
for RAM Test Error”to clarify the cause.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
1
1
02
(Example) : Version 1.02
(Integral part) (Decimal point part)
PA Er
(OK) (Error)
2-2. Self Diagnostic Mode

2-5 (E)
HKDV-900
4. NV-RAM test
n
Do not turn off the power switch during an NV-RAM test
to avoid the risk of the NV-RAM data failure.
Before turning off the power switch, press the “CANCEL”
button to return the display to the test item number.
Set the test item number to “04”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
Writes “ffh”in the every area of the RAM to check that the
written data can be read properly. Next, writes the data of
“aah”, “55h”, and then “00h”to check the reading.
If the test result is properly, “PA”is displayed on the
7SEG LED. If it is not properly, “Er”indicating an error
is displayed on the 7SEG LED.
n
If “Er”is displayed, see Section 2-3-6, “Troubleshooting
for NV-RAM Test Error”to clarify the casue.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
5. LED test
Set the test item number to “05”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
(1) All LEDs test result display
When an LED test is activated, all LEDs (including
with the LEDs in a pushbutton switch) first light for
one second and, after that, go off for one second.
This operation is repeated three times, and then
completed. Next, the single test of LED in the push-
button switch is executed.
(2) Single test result display of LED in pushbutton switch
The “HD”button on the leftmost lights for only 300
msec. And then, each button sequentially lights in the
right direction at intervals of 300 msec..
Blinking the “PRESET”botton on the rightmost
means that this single LED tests are completed. Next,
LEVEL LED test is executed.
(3) LEVEL LED test result display
The uppermost LEVEL LED in the five-LED row at
the left of a rotary encoder in the “MASTER”part
firstly lights for 300 msec.. And then, each LED
sequentially blinks in the down direction.
Blinking the LEDs is sequentially shifted to the right
row of LEVEL LEDs. When blinking the LEVEL
LEDs in “_”part, all these LED tests are completed.
This test operation returns to all LEDs test of (1) and
repeats the tests unless you quit it.
Check to see that all the LEDs are properly operated.
n
If the result is not displayed properly, see Section 2-3-
7, “Troubleshooting for LED Test Error”to clarify the
cause.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
6. 7SEG LED test
Set the test item number to “06”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
The 7SEG LEDs count down from “99”to “00”at
intervals of 500 msec. as when activating the test mode.
The countdown is carried out repeatedly.
Check to see that the 7SEG LEDs are properly operated.
n
If the countdown display is not properly, see Section 2-3-8,
“Troubleshooting for 7SEG LED Test Error”to clarify the
cause.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
2-2. Self Diagnostic Mode

2-6 (E) HKDV-900
8. Rotary encoder test
Set the test item number to “08”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
Check the following operations of each rotary encoder.
(1) LEVEL LED indication test
1. Check to see that the LEVEL LED (U) at the
center of the left side of the rotary encoder lights.
2. Slightly rotate the rotary encoder clockwise to
check that the light is shifted to the upper LEVEL
LED.
3. Rotate the rotary encoder clockwise by 180dor
more to check that the uppermost (maximum)
LEVEL LED lights.
4. Rotate the rotary encoder counterclockwise by
180dor more to check that the lowermost (mini-
mum) LEVEL LED lights.
(2) 7SEG LEDs indication test
Rotate each rotary encoder to check to see that the
following values of the rotary encoder are displayed in
hexadecimal on the 7SEG LEDs.
n
The display of the 7SEG LEDs is automatically
switched to the corresponded value of rotating the
rotary encoder by rotating either its knob.
.7SEG LEDs indication when rotating clockwise:
01 (when rotation starts) →FF (when the knob is
rotated by 180d) →00 (when the knob is rotated by
180dor more) →FF (immediately before the knob
is rotated by 360d)
.7SEG LEDs indication when rotating counterclock-
wise:
FF (when rotation starts) →00 (when the knob is
rotated by 180d) →FF (when the knob is rotated by
180dor more) →00 (immediately before the knob
is rotated by 360d)
Check all rotary encoders for the above operation.
n
If the above tests are not operated properly, see Section
2-3-10. “Troubleshooting for Rotary Encoder Test Error”
to clarify the cause.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.
ON
1
S101
234 5678
: Switch position
2-2. Self Diagnostic Mode
7. Switch test
Set the test item number to “07”using the [+]/[_] button,
and then press the “STORE”button to activate a test.
(1) LED built-in pushbutton switch test
Press the LED built-in pushbotton switches on the
front panel to check to see that the LED of each button
lights.
Press the switches again and check to see that the
LEDs goes off.
(2) Pushbutton switch test
Press the pushbotton switches on the front panel (not
including with “CANCEL”) which no LED is built in.
Check to see that the numeric character corresponding
to the pressed switch is displayed on the left 7SEG
LED. (Refer to the following table.)
The pushbotton switches and 7SEG LED display:
Switch Display on left digit
+0
_1
STORE 2
LOAD 3
(3) Slide switch test
Remove the top panel, and then set the switches S101-
7 and S101-8 (J-3) on the CP-364 board to ON.
Check to see that a numeric character corresponding to
the switch settings is displayed on the right 7SEG
LED. (Refer to the table below.)
Slide switch settings and 7SEG LED display:
S101-7 S101-8 Display on right digit
ON ON 3
OFF ON 2
ON OFF 1
OFF OFF 0
n
If the above tests are not operated properly, see Section 2-3-
9, “Troubleshooting for Switch Test Error”to clarify the
cause.
To quit the test, press the “CANCEL”button. The 7SEG
LEDs display returns to the test item number.

2-7 (E)
HKDV-900
9. RS-422A test
Connect the connector tool(s) to the RS-422A connectors at the rear. (Refer to Section 2-2-1.)
Set the test item number to “09”using the [+]/[_] button, and then press the “STORE”button to activate
a test.
Outputs data from “0h”to “ffh”to the RS-422A connector and test that the same data can be received.
n
The states of the test result display that is displayed on the 7SEG LEDs and the LED inside the CON-
TROL SELECT button will change depending on the number of connector tools to be connected.
The states of both LEDs are as follows:
When using the four tools:
Test result 7SEG LED display LED inside the CONTROL SELECT button
OK “PA” All light off.
NG “Er” LED of an abnormal port : Blinks.
LED of a normal port : Lights off.
When using the three tools or less:
Test result 7SEG LED display LED inside the CONTROL SELECT button
OK “Er” LED of a port to which the tool is connected : Lights off.
LED of a port to which the tool is not connected : Blinks.
NG “Er” LED of a port to which the tool is connected : Blinks.
LED of a port to which the tool is not connected : Blinks.
n
If “Er”is displayed, see Section 2-3-11, “Troubleshooting for RS-422A Test Error”to clarify the cause.
To quit the test, and press the “CANCEL”button. The 7SEG LEDs display returns to the test item
number.
n
To quit the self diagnostic mode, set the switch S100-8 (J-3) on the CP-364 board back to OFF.
2-2. Self Diagnostic Mode

2-8 (E) HKDV-900
2-3. Troubleshooting
The trouble that may occur during a self diagnostic test and its possible cause are described below.
2-3-1. Troubleshooting for the Power-on Sequence Error
All LEDs on the front panel does not light and stay the state
(1) Power supply input check
(2) Switching regulator output check
(3) Switching regulator input check
2-3. Troubleshooting
Is the cable between the power connector
(CN600) on the CP-364 board and the
switching regulator properly connected?
To “(2) Switching regulator output check”
NG
Connect the cable properly and test
again
OK
Does +5 V DC present to the pins 1 and
2 of connector CN600 on the CP-364
board?
To “(4) CP-364 board power check”
NG
Disconnect the cable from the connector
CN600, and test the harness again
OK
To “(3) Switching regulator input check”
NG
OK
Short between +5 V and GND on the
CP-364 board
Does the specified AC voltage present
to the AC input terminal of the switching
regulator?
Power supply line defect. Pull the cord out
and current conduction test
OK
Switching regulator defect
NG
Check the fuse on the switching
regulator
OK
Fuse defect
NG