Fostex D-108 User manual

D-108
Service Manual
Model
DIGITAL MULTITRACKRECORDER
&
8345/5040

SAFETY INSTRUCTIONS
Read instructions - All the safety and operating instruc-
tions should be read before the appliance is operated.
Retain instructions - The safety and operating instructions
should be retained for future reference.
Heed warnings - All warnings on the appliance and in the
operating instructions should be adhered to.
Follow instructions - All operating and use instructions
should be followed.
Water and Moisture - The appliance should not be used
near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a
swimming pool, and the like.
Carts and Stands - The appliance should be used only
with a cart or stand that is recommended by the manufac-
turer.
An appliance and cart combination should be moved with
care. Quick stops, excessive force, and uneven surfaces
may cause the appliance and cart combination to over-
turn.
Wall or Ceiling Mounting - The appliance should be
mounted to a wall or ceiling only as recommended by the
manufacturer.
Ventilation - The appliance should be situated so that its
location or position does not interfere with its proper ven-
tilation. For example, the appliance should not be situ-
ated on a bed, sofa, rug, or similar surface that may block
the ventilation openings; or, placed in a built-in installa-
tion, such as a bookcase or cabinet that may impede the
flow of air through the ventilation openings.
Heat - The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
Power Sources - The appliance should be connected to a
power supply only of the type described in the operating
instructions or as marked on the appliance.
Grounding or Polarization - The precautions that should
be taken so that the grounding or polarization means of
an appliance is not defeated.
Power Cord Protection - Power supply cords should be
routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience recep-
tacles, and the point where they exit from the appliance.
Cleaning - The appliance should be cleaned only as rec-
ommended by the manufacturer.
Nonuse Periods - The power cord of the appliance should
be unplugged from the outlet when left unused for a long
period of time.
Object and Liquid Entry - Care should be taken so that
objects do not fall and liquids are not spilled into the en-
closure through openings.
Damage requiring Service - The appliance should be ser-
viced by qualified service personnel when:
A.
B.
C.
D.
E.
Servicing - The user should not attempt to service the ap-
pliance beyond that described in the operating instruc-
tions. All other servicing should be referred to qualified
service personnel.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
TO PREVENT ELECTRIC SHOCK, MATCH
WIDE BLADE OF PLUG TO WIDE SLOT,
FULLY INSERT.
POUR ÉVITER LES CHOCS ÉLECTRIQUES,
INTRODUIRE LA LAME LA PLUS LARGE DE
LA FICHE DANS LA BORNE CORRE-
SPONDANTE DE LA PRISE ET POUSSER
JUSQU' AU FOND.
CAUTION:
ATTENTION:
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and mainte-
nance (servicing) instructions in the literature
accompanying the appliance.
The lightening flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product's en-
closure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
“WARNING”
“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOIS-
TURE.”
1.
2.
3.
4.
5.
6.
7.
8.
The power supply cord or the plug has been damaged;
or
Objects have fallen, or liquid has been spilled into the
appliance; or
The appliance has been exposed to rain; or
The appliance does not appear to operate normally or
exhibits a marked changed in performance; or
The appliance has been dropped, or the enclosure
damaged.
9.
10.
11.
12.
13.
14.
15.
16.
17.

D-108
3
Parts marked with this sign are safety critical components. They must always be replaced with identical
components. Refer to the Fostex Parts List and ensure exact replacement.
CAUTION
TABLE OF CONTENTS
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . .
3. SOFTWARE UPDATE . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. SERVICE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. ERROR CODE LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. MODEL 8345/5040 INSTALLING PROCEDURES . . . . . . . . .
7. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . .
8. CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner's manual : 8288421000 (for export model)
: 8288422000 (for domestic model)
Quick manual : 8288435000 (for export model)
: 8288436000 (for domestic model)
Service mode, error code list, exploded view, PCB assembly, parts list and circuit diagrams are given in this
manual to assist the service technician in maintaining the Model D-108.
NOTES
The following accessories are supplied with D-108 as the standard accessories.
*
*
Following is the packing material for the Model D-108.
*
Carton, inner, D-108 : 8228720000
Carton, outer, D-108 : 8228899000
Packing, side, L, D-108/160 : 8228430001
Packing, side, R, D-108/160 : 8228430002
Packing, case, D-108/160 : 8228435000
Inner carton, 9040 : 8228698000
Packing, side, 9040/9041 : 8228414000
4
7
10
11
22
23
26
45

4
D-108
1. SPECIFICATIONS
INPUT & OUTPUT
INPUT (1 ~ 8)
Connector RCA pin jack (x 8)
Input Level -10 dBV
Input Impedance 10 kΩor more
OUTPUT (1 ~ 8)
Connector RCA pin jack (x 8)
Output Level -10 dBV
Load Impedance 10 kΩor more
DATA IN / OUT
Connector Square shape optical
Format IEC consumer optical standard IEC 958 Part 3
ALESIS Proprietary Multi Channel Optical Digital Interface
MIDI IN / OUT / THRU
Connector DIN 5-pin
Format Comply to MIDI standard
PUNCH IN / OUT
Connector Ø6 mm phone jack (CMOS level)
SCSI
Connector D-SUB 25-pin
Protocol SCSI-2, unbalanced transfer method
Transfer Type Asynchronous
Number of Units Connected 2
RECORD & PLAYBACK
Recording Medium Internal 3.5” E-IDE hard disk drive (optional)
External fixed / removable SCSI-2 hard disk drive
Standard SCSI-2 or better
Sampling Frequency 44.1 kHz, 48kHz (Switchable by SETUP mode)
Quantization 16-bit linear
Emphasis Not available
Recording Time (mono track min.) About 18 min. / 100 MB at maximum (at Fs: 44.1 kHz)
Recording time will be limited up to 24 hours.
Number of Tracks 24 tracks (8 + 16 additional tracks)
Number of recording tracks at a time 8
Number of playback tracks at a time 8
Recording Format FDMS-3
Pitch Control ± 6.0 %
Crossfade 10 msec
OPERATION
Shuttle Speed 8 steps (7 steps for FWD direction)
CUE ON ± 1 ~ 8 times (FWD: ± 1 ~ 7 times)
CUE OFF ± 1 ~ 64 times
FFWD / REW Speed
CUE ON ± 3 times
CUE OFF ± 32 times
D-108

D-108
5
OPERATION (continued)
Digital Scrubbing (JOG) 0 ~ 1 times (Envelope can be displayed when selecting only
one track.)
Locate Memory 6 (7 including [LOCATE] key temporary memory) + 99
LEVEL INDICATION
Type FL Bargraph
Number of Indicated Levels 11 dots (-∞, -42, -30, -24, -18, -12, -9, -6, -3, 0, OVER)
Reference Level (-10 dBV) Indication -12 dB
DIMENSIONS 148 (H) x 482 (W) x 381 (D) mm
WEIGHT 8 kg
POWER REQUIREMENT
JPN 100 V AC
USA / CND 120 V AC
EUR / UK 230 V AC
POWER CONSUMPTION Approx. 33 W
STANDARD ENVIRONMENT
Standard Temperature 20 ± 2 ºC
Standard Humidity 65 ± 5 %
ENVIRONMENT CONDITION (W/O HD)
Characteristics Guaranteed
Temperature + 5 ~ + 40 ºC
Humidity 30 ~ 70 %
AC voltage deviation ± 5 % or less
Operation Guaranteed
Temperature - 5 ~ + 45 ºC
Humidity 85 % or less
AC voltage deviation ± 10 % or less
CHARACTERISTICS
Overall Frequency Response 20 ~ 20 kHz +1, -2 dB
Signal to Noise Ratio 88 dB or more (between ADC and DAC)
Dynamic Range 88 dB or more (between ADC and DAC)
T.H.D. 0.008 % or less (at 1 kHz, -1 dBV)
Channel Separation 80 dB or more (at 1 kHz)
Phase Difference between Channels 20 º or less
8345
INPUT & OUTPUT
TIME CODE INPUT
Format SMPTE
Connector XLR-3-31 type (Pin 1: GND, Pin 2: HOT, Pin 3: COLD)
Standard Input Level 2 V p-p
Minimum Input Level 0.25 V p-p
Input Impedance 20 kΩor more

6
D-108
TIME CODE OUTPUT
Format SMPTE
Connector XLR-3-32 type (Pin 1: GND, Pin 2: HOT, Pin 3: COLD)
Standard Output Level 2 V p-p
Minimum Output Level 0.25 V p-p
Load Impedance 20 kΩor more
VIDEO INPUT
Format Composite (Applied video signal must comply to PAL or
NTSC standard and be interlace type)
Connector BNC
Frame Pulse 24, 25, 29.97, 30 Hz (± 1000 ppm)
Field Pulse 48, 50, 59.94, 60 Hz (± 1000 ppm)
Standard Input Level 1 V p-p
Input Impedance 75 Ω(ON / OFF by terminator SW)
VIDEO THRU
Connector BNC
Output Level Direct output of signal fed to Video Input connector
WORD INPUT
Connector BNC
Frequency 44.1, 48 kHz
Standard Input Level TTL level
Input Impedance 75 Ω(ON / OFF by terminator SW)
WORD OUTPUT
Connector BNC
Standard Output Level TTL level
Load Impedance 75 Ω(ON / OFF by terminator SW)
DIMENSIONS 215 (W) x 80 (D) mm
POWER SUPPLY Supplied from D-108
Digital DC + 5 V
Analog DC + 19 V / - 15 V
5040
INPUT (1 ~ 8)
Connector D-SUB 25-pin
Standard Input Level + 4 dBu
Input Impedance 10 kΩor more
OUTPUT (1 ~ 8)
Connector D-SUB 25-pin
Output Level + 4 dBu
Load Impedance 600 Ωor more
DIMENSIONS 270 (W) x 70 (D) mm
POWER SUPPLY DC + 15 V (Supplied from D-160)
Specifications and appearance are subject to change without notice for product improvement.

D-108
7
2. CONTROLS, INDICATORS & CONNECTORS
D-108
8TRACK DIGITAL RECORDER
OPTICAL
PREVIEW
ENVELOPE
LOCATE REC END
VARI PITCH
RECORD STOP PLAY REWIND F FWD
PUNCH LOCATE
REHEARSAL
TAKE
TIME BASE SEL
RECALLSTOREHOLD/
/NO
EXIT
/YES
EXECUTE
DISP SEL
REDOUNDOERASE
AUTO RTN
COPY MOVE PASTE
CLIPBOARD
AUTO RTN
OUTINAUTO PLAY AUTO PUNCH START OUTIN END
TC INLOCKED HD ACCESS
RECORD TRACK
1/9 2/10 3/11 4/12 5/13 6/14 7/15 8/16
PGM SEL
PUNCH
IN / OUT
LOCATE ABS 0
CLIPBOARD PLAY
AUTO
SHIFT
POWER
8TRACK DIGITAL RECORDER
D-108
POWER
AC IN
MIDI SCSI
OUTPUTINPUT
DATA OPTICAL
87 65
1234 ANALOG OUTANALOG IN
THRUOUTPUTINPUT
43 21
87 65
< Front Panel Section with Detachable Controller >
< Front Panel Section without Detachable Controller >
< Rear Panel Section >

8
D-108
1. Detachable remote controller connector (DSUB 15-pin)
2. Power switch [POWER]
3. Controller mount
4. Hard disk access LED (Red)
5. Hard disk power LED (Green)
6. Removable hard disk cartridge slot
7. Lock / Unlock key
8. Controller connection cable
9. Meter display
10. Record track select key [RECORD TRACK 1 ~ 8]
11. Shift key [SHIFT]
12. Auto play / Auto return key [AUTO PLAY/AUTO RTN]
13. Clipboard in key [CLIPBOARD IN]
14. Clipboard out key [CLIPBOARD OUT]
15. Auto return start key [AUTO RTN START]
16. Auto return end key [AUTO RTN END]
17. Auto punch in key [AUTO PUNCH IN]
18. Auto punch out key [AUTO PUNCH OUT]
19. Display select key [DISP SEL]
20. Execute / Yes key [EXECUTE/YES]
21. Exit / No key [EXIT/NO]
22. Recall key [RECALL]
23. Store key [STORE]
24. Hold / Digit move key [HOLD/ ]
25. Jog / Shuttle dial
26. Redo key [REDO]
27. Undo key [UNDO]
28. Erase key [ERASE]
29. Vari pitch key [VARI PITCH]
30. Paste key [PASTE]
31. Move key [MOVE]
8TRACK DIGITAL RECORDER
D-108
POWER
< Front Panel Section without Detachable Controller >
1
12
27453
D-108
8TRACK DIGITAL RECORDER
OPTICAL
PREVIEW
ENVELOPE
LOCATE REC END
VARI PITCH
RECORD STOP PLAY REWIND F FWD
PUNCH LOCATE
REHEARSAL
TAKE
TIME BASE SEL
RECALLSTOREHOLD/
/NO
EXIT
/YES
EXECUTE
DISP SEL
REDOUNDOERASE
AUTO RTN
COPY MOVE PASTE
CLIPBOARD
AUTO RTN
OUTINAUTO PLAY AUTO PUNCH START OUTIN END
TC INLOCKED HD ACCESS
RECORD TRACK
1/9 2/10 3/11 4/12 5/13 6/14 7/15 8/16
PGM SEL
PUNCH
IN / OUT
LOCATE ABS 0
CLIPBOARD PLAY
AUTO
SHIFT
89
10
11
42
41
40
32 3113 14 15
17 18 16 1920 21 22
23
24
2526
27
30
3435 36 37 38 39 2928
33
43
< Detachable Controller Section >
6

D-108
9
32. Copy key [COPY]
33. Auto punch mode on / off key
[AUTO PUNCH (REHEARSAL/TAKE )]
34. Locate key [LOCATE]
35. Record button [RECORD]
36. Stop button [STOP]
37. Play button [PLAY]
38. Rewind button [REWIND]
39. Fast forward button [F FWD]
40. Locked LED [LED] (Green)
41. Hard disk access LED [HD ACCESS] (Green)
42. MIDI time code in LED [TC IN] (Green)
43. Punch in / out jack [PUNCH IN/OUT] (Phone)
44. Input jack [ANALOG IN 1 ~ 8] (RCA)
45. Output jack [ANALOG OUT 1 ~ 8] (RCA)
46. Data input connector [DATA INPUT] (Optical)
47. Data output connector [DATA OUTPUT] (Optical)
48. SCSI connector [SCSI] (D-SUB 25-pin)
49. MIDI input / output / thru connector
[MIDI INPUT/OUTPUT/THRU] (DIN 5-pin)
50. Panel A for optional card (Model 5041)
51. Panel B for optional card (Model 8345)
52. AC IN connector [AC IN]
53. Video input terminating switch [75ΩON/OFF]
54. Video input connector [VIDEO INPUT] (BNC)
55. Video thru connector [VIDEO THRU] (BNC)
56. Word input terminating switch [75ΩON/OFF]
57. Word input connector [WORD INPUT] (BNC)
58. Word output connector [WORD OUTPUT] (BNC)
59. Time code input connector [TIME CODE INPUT] (XLR)
60. Time code output connector [TIME CODE OUTPUT] (XLR)
61. Balanced input connector [+4dBu INPUT] (XLR)
62. Balanced output connector [+4dBu OUTPUT] (XLR)
AC IN
MIDI SCSI
OUTPUTINPUT
DATA OPTICAL
87 65
123
ANALOG OUTANALOG IN
THRUOUTPUTINPUT
43 21
87 65
< Rear Panel Section >
50 5144 45 49 46 47 48 52
AC IN
MIDI SCSI
OUTPUTINPUT
DATA OPTICAL
+4dBu INPUT +4dBu OUTPUT
87 65
1234
ON OFF
INPUT THRU
VIDEO
OFFON
INPUTWORD OUTPUT
ANALOG OUTANALOG IN
BALANCE I/O
THRUOUTPUTINPUT
43 21
87 65
INPUT TIME CODE OUTPUT
3
2
1
COLD
GND
HOT
53 54 55 56 57 58 59 6061 62
< Rear Panel Section with Model 8345 and 5041 >
75Ω75Ω

10
D-108
3. SOFTWARE UPDATE
Like the FD-4 and FD-8, the D-108 software can be updated through the SCSI port. This means that unscrewing and opening
up the D-108 top cover is not necessary to change the EPROMs. Please refer to the following explanation for correct software
updating procedures.
Updated software in a removable medium (e.g. floppy disk, zip disk, etc.) to be sent via airmail
Updated software as an attachment file to be sent via Email
There are two ways of sending the D-108 updated software.
3-1. Method of Sending Software from Fostex Japan
1.
2.
3-2. Required Tools
IBM PC/AT compatible computer with SCSI board
Removable type SCSI drive
Cable between the removable type SCSI drive and the SCSI board
Cable between the removable type SCSI drive and the D-108 (D-SUB 25-pin)
The following tools/equipment are required to update the D-108 software.
3-3. Software Updating Procedures
Connect the removable type SCSI drive to the IBM PC/AT compatible computer SCSI port.
Insert the diskette to the removable type SCSI drive and format it by the computer on which Windows 95/98 is running.
Copy the updated software file to the removable type SCSI drive (diskette).
Set the removable type SCSI drive ID to 0 ~ 5 and connect to the D-108 SCSI port.
Turn on the power of removable drive and then D-108. While the system is booted up, do not forget to check the software
version as well as the programming date.
Select “SCSI” by the Drive Select SETUP menu (Drive_Sel.?) and press the EXECUTE/YES key.
After confirming that the D-108 recognizes the connected SCSI drive, insert the diskette with updated software file. The
D-108 is automatically put into the software updating mode and comes to a standstill at the display below.
Presuming that the updated software is correctly sent and is copied into your computer.
Pressing the EXECUTE/YES key will start updating the software. The display shows “Loading!”, “Writing!” and “Initial..”
in order and automatically returns to the above condition again. Check the displayed ROM version and date if the
software is correctly updated by the optional mode “4-2. Flash ROM & CPU Version” (page 11).
Eject the diskette with updated software file by the press of STOP or EXIT/NO key and insert the diskette formatted by
the D-108.
CAUTION:
The diskette in which the updated software file is copied must be formatted by IBM PC/AT computer, not by Macintosh.
If something wrong happens while updating the software (e.g. A blackout occurred while updating the software.), the D-
108 might not be able to boot up the system software inside the Flash ROM. In such a case, please refer to the section “4-
8. Flash ROM” (page 21).
The SCSI ID to be connected to the D-108 must be selected to 0 ~ 5. The SCSI ID “6” is used for backing up purpose
exclusively. The SCSI ID “7” cannot be used on the D-108 by technical reasons.
1.
2.
3.
4.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1.
2.
3.
SURE?

D-108
11
4. SERVICE MODE
There are various optional modes available in the D-108 Service Mode. Please utilize them when servicing the unit.
Insert a 3.5” E-IDE internal HDD into the HDD cartridge slot or connect an external SCSI recording/playback device
(SCSI ID: 0 ~ 5) to the D-108 SCSI connector.
Turn on the power of D-108.
While holding down the STOP button, press the DISP SEL key to select the SETUP menu and then press the EXECUTE/
YES key.
The way of putting the D-108 into Service Mode is as follow.
4-1. Putting D-108 into Service Mode
1)
2)
3)
As shown below, by rotating the jog dial C.W. or C.C.W., various optional modes will be displayed in addition to the
general SETUP menus. In order to select a certain optional mode, press the EXECUTE/YES key while its menu is
displayed.
4-2. Flash ROM & CPU Version
This mode is used to check the Flash ROM and CPU versions currently installed in the unit.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
Drive_Sel.?
Load_PGM?
Save_PGM?
DiskFormat_?
Track_Exchange? Signature_Set?
Tempo_Map_Set ?
TitleEdit_PGM01?
Delete_PGM01?
Click_ ?
PrerollTime?
MidiSyncOut?
Frame_Rate?
00h59m57s00f00sf
(MTC Offset)
OffsetMode?
Slave_Mode?
Ref._TC*
SlaveType?
Rec_Protect?
Digi.in?
Digi.out?
Resolution?
Device_ID?
SampleRate?
Clock_Sel?
Not_Used?
Sync_Preset*
NOs_Of_Event?
Version?
DA_Test?
Standby_Disk? DisplayTest?
Self_Check?
OffsetDisp?
InitialDisk?
Flash_ROM?
Freeblock_Check?
*: Model 8345 is required.
CW
42
44.1kHz
SETUP
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Optional Mode

12
D-108
4-3. DA Test
This mode tests the signal flow from the DATA INPUT jack to the D/A converter. A S/P DIF digital signal (Fs: 44.1kHz)
must be input to the DATA INPUT jack to execute this test. Then, press the EXECUTE/YES key while “?” is blinking.
The example on the above indicates that the Flash ROM version is V1.01 and its programming date is December 25,
1998. In this condition, by turning the jog dial C.W. or C.C. W., the CPU version can be checked. The example below
indicates that the CPU version is V2.00 and its programming date is August 4, 1998.
In order to check the version number, press the “EXECUTE/YES” key while “?” is blinking.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
If the D-108 is in a normal condition, “44.1kHz” and “DIGITAL” will be lit solid. The odd (1, 3, 5, 7 and L) and even (2,
4, 6, 8 and R) channels indicate the left and right input level of S/P DIF digital signal fed to the DATA INPUT jack
respectively.
If the D-108 is not in a normal condition, “DIGITAL” and “EXT SYNC” on the display will blink and the bargraph meter
will not indicate any level.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking

D-108
13
4-4. Display/Button Test
This mode tests if all the segments on the FL display, LEDs and buttons (switches) on the D-108 controller are correctly
working or not. To execute this test, press the EXECUTE/YES key while “?” is blinking.
If the D-108 is in a normal condition, all the segments on the FL display will be lit solid (Dot matrix and bargraph meter
sections on the FL display will blink.) and all the LEDs on the top panel will start blinking.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
4-4. Standby Disk
This mode makes the internal hard disk stop spinning for purposes such as “shock” test.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
If the EXECUTE/YES key is pressed when “?” is blinking, the “SURE” prompt will start blinking. If you would like to go
on, press the EXECUTE/YES key once again. The internal hard disk will stop spinning.
42
44.1kHz
SETUP
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
MTC IN OFFSET
CHASE
LOCATE
PGM
REMAIN FORMAT
SIGNATURE
TEMPO
48kHz
-0.1%
COMPLETED!
SURE?
MIDI CHASE
SAVE LOAD
EXT SYNC
DIGITAL
ABS
9 10111213141516
OL 0124681012152026
3260 50 40
L
R
: Blinking
If the D-108 is not in a normal condition, faulty segments on the LCD display and/or LEDs on the top panel will remain
unlit.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
In this condition, if the EXECUTE/YES key is pressed one more time, the Button Test can be executed. The Button Test
checks if each key/button and jog dial are working properly or not. The display below indicates that the PLAY button is
pressed and held down.

14
D-108
4-5. Self Check
This mode automatically tests the following points in order.
• SCSI port
• ATA (E-IDE) bus
• Option (Model 8345) bus
• MIDI in/out circuit
• S/P DIF digital signal in/out (44.1kHz)
• ADAT digital signal in/out (48kHz)
• 8345 vari-pitch circuit
• D-108 vari-pitch circuit
• A/D and D/A circuit (Input Monitor)
In order not to form a MIDI signal loop, connect the MIDI cable after putting the D-108 into the Service Mode.CAUTION:
The table below shows the relationship between the key/button/jog dial and the corresponding numbers appear on the
LCD display.
In order to quit the Button Test, turn the jog dial C.W. or C.C.W. further after “51” or “49” is displayed respectively.
AC IN
MIDI SCSI
OUTPUTINPUT
DATA
OPTICAL
87 65
1234 ANALOG OUTANALOG IN
THRUOUTPUTINPUT
43 21
87 65
< Cable connection in“Self Check” mode >
External SCSI Device
Key/Button No. Key/Button No. Key/Button No.
AUTO RTN/PLAY 01 ERASE 14 RECORD TRACK 5 27
CLIPBOARD IN 02 UNDO 15 RECORD TRACK 6 28
CLIPBOARD OUT 03 REDO 16 RECORD TRACK 7 29
AUTO RTN START 04 HOLD/ 17 RECORD TRACK 8 30
AUTO PUNCH IN 05 STORE 18 SHIFT 31
AUTO PUNCH OUT 06 RECALL 19 RECORD 32
AUTO RTN END 07 AUTO PUNCH 20 STOP 33
DISP SEL 08 LOCATE 21 PLAY 34
EXECUTE/YES 09 VARI PITCH 22 REWIND 35
EXIT/NO 10 RECORD TRACK 1 23 F. FWD 36
COPY 11 RECORD TRACK 2 24 SHUTTLE 00~07
MOVE 12 RECORD TRACK 3 25 JOG (C.W.) 51
PASTE 13 RECORD TRACK 4 26 JOG (C.C.W.) 49

D-108
15
To start the Self Check mode, press the EXECUTE/YES key when “?” is blinking.
The D-108 automatically checks the before mentioned points. If the D-108 is working properly, the following appears on
the display with REC LED blinking.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
In order to go back to the normal display, press the EXIT/NO key or STOP button.
42
44.1kHz
OL
0
87654321
30
24
18
12
9
6
3
4-5-1. SCSI Port Check
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
If the D-108 does not recognize a SCSI device connected to the D-108 SCSI port, the prompt below will be displayed.
The following is considered to be the cause of problem.
• Bad cable connection, bad cable contact and / or the power of SCSI device is being turned off.
• SCSI device ID is not set to 0 ~ 5.
• MAIN PCB is defective. (bad soldering of U7, U8, J6, etc.)
If a removable type SCSI drive is connected and in case a disk is not inserted into the drive, the following prompt will be
displayed.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3

16
D-108
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
4-5-2. ATA (E-IDE) Bus Check
In the case that the inserted disk is not FDMS-3 formatted, the following prompt will be displayed.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
Fs, DIGITAL IN, DIGITAL OUT and SLAVE MODE settings on the disk to be used when the Self Check test is executed
should be as follow.
• Fs: 44.1kHz
• DIGITAL IN: OFF (L: - R: -)
• DIGITAL OUT: ADAT
• SLAVE MODE: OFF
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.
This test checks if data can be properly read out from the preformatted internal hard disk .
If the “ALTERNATE STATUS” which indicates the hard disk condition cannot be read out, the prompt below will be
displayed.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
If the data (SYSTEM ID) written by formatting the disk cannot be read out correctly, the prompt below will be displayed.
The following is considered to be the cause of problem.
• Breaking, shortage and / or bad contact of flat cable J12.
• Bad soldering of gate array U5 on the MAIN PCB.

D-108
17
4-5-4. MIDI In/Out Check
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
4-5-3. Option (Model 8345) Bus Check
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
This test checks if the option bus (J9 on the MAIN PCB) to which the Model 8345 is connected is working properly or not.
If reading out and / or writing in data are not correctly executed, the prompt below will be displayed.
The following is considered to be the cause of problem.
• Bad connection and / or wrongly connected J9.
• Bad soldering of J9, U16, U17, U34, etc. on the MAIN PCB
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.
By connecting the MIDI IN and OUT ports, this test checks if the reply against the ID inquiry is correctly received. If not,
the prompt below will be displayed.
The following is considered to be the cause of problem.
• Bad soldering of J2, U11, U19 and surrounding circuit on the MAIN PCB
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.
Fs, DIGITAL IN, DIGITAL OUT and SLAVE MODE settings on the internal disk to be used when the Self Check test is
executed should be as follow.
• Fs: 44.1kHz
• DIGITAL IN: OFF (L: - R: -)
• DIGITAL OUT: ADAT
• SLAVE MODE: OFF
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test. If the
EXECUTE/YES key is pressed with the “ATA Bus Check” prompt displayed, checking the SYSTEM ID on the SCSI
device will be executed. The current drive setting after the Self Check test will become “SCSI”.

18
D-108
4-5-5. S/P DIF In/Out (44.1kHz) Check
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
4-5-6. Adat In/Out (48kHz) Check
By connecting the DATA IN and OUT terminals, this tests checks if the S/P DIF signal output by itself is correctly
received. If the PLL circuit is not in a “LOCKED” condition, the prompt below will be displayed.
The following is considered to be the cause of problem.
* Defect on DIGITAL OUT
- No oscillation of resonator X1.
- Connector J4, gate array U5, U20 and / or surrounding circuit are defective.
* Defect on DIGITAL IN
- Connector J5, gate array U5, U20 and / or surrounding circuit are defective.
- PLL circuit (U10 and surrounding circuit) are defective.
* The SETUP “DIGITAL IN” is set other than “L: - R: -”.
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.
42
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
48kHz
By connecting the DATA IN and OUT terminals, this tests checks if the ADAT digital signal output by itself is correctly
received. If the PLL circuit is not in a “LOCKED” condition, the prompt below will be displayed.
The following is considered to be the cause of problem.
* Defect on DIGITAL OUT
- No oscillation of resonator X2.
- Connector J4, gate array U5, U20 and / or surrodunding circuit are defective.
* Defect on DIGITAL IN
- Connector J5, gate array U5, U20 and / or surrounding circuit are defective.
- PLL circuit (U22, 23, 35, 36, 37, 38, 39 and / or surrounding circuit) are defective.
* The SETUP “DIGITAL IN” is set other than “L: - R: -”.
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.

D-108
19
4-5-8. D-108 Vari-Pitch Circuit (48kHz) Check
4-5-7. 8345 Vari-Pitch Circuit (48kHz) Check
The master clock is generated using the Model 8345 LRCK (J9 pin-24: EXT_LRCK). In the meantime, the adat digital
signal is generated based on this master clock. This test checks if the adat digital signal output by itself is correctly
received. If not, it means that the vari-pitch circuit does not work correctly. As a result, the prompt below will be displayed.
If “adat error” is displayed in the before mentioned test, the above error prompt will be naturally displayed.
If the Model 8345 test is not installed in the D-108, this test will be skipped.
The following is considered to be the cause of problem.
• Wrongly connected flat cable to J9 on the MAIN PCB.
• Bad soldering of J9, U9, U3 and / or surrounding circuit
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.
42
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
48kHz
42
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
48kHz
Using the master clock generated through the D-108 vari-pitch circuit on the MAIN PCB, the adat digital signal is output.
This test checks if the adat digital signal output by itself is correctly received. If not, it means that the vari-pitch circuit
does not work correctly. As a result, the prompt below will be displayed.
If “adat error” is displayed in the before mentioned test, the above error prompt will also be naturally displayed.
The following is considered to be the cause of problem.
• Defects on the vari-pitch circuit (U3, U9), gate array (U5) and / or surrounding circuit.
Even if the before mentioned prompt is displayed, pressing the EXECUTE/YES key would reach the next test.

20
D-108
4-7. Initializing Disk
This mode initializes a 3.5" internal E-IDE hard disk drive or an external SCSI device connected to the SCSI port.
CAUTION: If both the external SCSI drive and the internal 3.5” E-IDE hard disk drive are connected at the same
time, currently selected drive by the SETUP menu “Drive_Sel?” will be initialized.
Up to 2 x SCSI drives can be connected to the D-108 at a time. One is for recording / reproducing (SCSI
ID: 0 ~ 5) and the other for exclusive backing up (SCSI ID: 6). Initializing is possible on the SCSI drive
(ID: 0 ~ 5) used for recording / reproducing only.
1.
2.
4-6. Offset Display
This mode determines if the offset value against a master machine should be displayed when the D-108 is working as a
slave machine. If you would like to turn ON the offset display, press the EXECUTE/YES key while “?” is blinking. (The
default setting is “off”.) Then, turn the jog dial C.W. to change the display to “ON” and press the EXECUTE/YES key.
In order to check the offset value, select the “MTC” time base and the “REMAINING TIME” display. The display below
is an example of offset display.
There might be a case that the percentage value does not indicate “0.0%” exactly. This is caused by the
difference of internal clocks between master and slave machines, which are running independently.
CAUTION:
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
After pressing the EXECUTE/YES key, “SURE?” will start blinking in the FL display. In this condition, pressing the
EXECUTE/YES key one more time would initialize the recognized disk drive. This mode puts the disk back to the
condition originally formatted.
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
: Blinking
42
44.1kHz
OL
0
8
7
6
5
4
32
1
30
24
18
12
9
6
3
OFFSET