Denon DN-S3700 Service Manual

Ver. 1

SERVICE MANUAL

MODEL JP E3 E2 EK E2A E2C E1K EUT

DN-S3700

CD/USB MEDIA PLAYER & CONTROLLER

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For purposes of improvement, specifications and design are subject to change without notice.

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Please use this service manual with referring to the operating instructions without fail.

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Some illustrations using in this service manual are slightly different from the actual set.

PROFESSIONAL BUSINESS COMPANY

X0408 V.01 DE/CDM 0901

SAFETY PRECAUTIONS

The following check should be performed for the continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK

Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.

LASER RADIATION

Do not stare into beam or view directly with optical instruments, class 3A laser product.

CAUTION

Please heed the points listed below during servicing and inspection.

◎ Heed the cautions!

Spots requiring particular attention when servicing, such as the cabinet, parts, chassis, etc., have cautions indicated on labels or seals. Be sure to heed these cautions and the cautions indicated in the handling instructions.

◎ Caution concerning electric shock!

(1) An AC voltage is impressed on this set, so touching in-

ternal metal parts when the set is energized could cause electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gloves when servicing while the set is energized, unplugging the power cord when replacing parts, etc.

(2)There are high voltage parts inside. Handle with extra

care when the set is energized.

◎ Caution concerning disassembly and

assembly!

Though great care is taken when manufacturing parts from sheet metal, there may in some rare cases be burrs on the edges of parts which could cause injury if fingers are moved across them. Use gloves to protect your hands.

◎ Inspect for safety after servicing!

Check that all screws, parts and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an insulation check on the external metal connectors and between the blades of the power plug, and otherwise check that safety is ensured.

(Insulation check procedure) Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and turn the power switch on. Using a 500V insulation resistance tester, check that the insulation resistance between the terminals of the power plug and the externally exposed metal parts (antenna terminal, headphones terminal, microphone terminal, input terminal, etc.) is 1MΩ or greater. If it is less, the set must be inspected and repaired.

CAUTION

Concerning important safety

parts

◎ Only use designated parts!

The set's parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be sure to use parts which have the same properties. In particular, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the designated parts.

◎ Be sure to mount parts and arrange

the wires as they were originally!

For safety reasons, some parts use tape, tubes or other insulating materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wires inside and clamps are used to keep wires away from heating and high voltage parts, so be sure to set everything back as it was originally.

Many of the electric and structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and using replacement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be preserved. Parts with safety properties are indicated as shown below on the wiring diagrams and parts lists is this service manual. Be sure to replace them with parts with the designated part number.

(1) Schematic diagrams ... Indicated by the z mark. (2) Parts lists ... Indicated by the z mark.

Using parts other than the designated parts could result in electric shock, fires or other dangerous situations.

DN-S3700

DIMENSION







DN-S3700

DISASSEMBLY

• Disassemble in order of the arrow of the figure of following flow.

• In the case of the re-assembling, assemble it in order of the reverse of the following flow.

• In the case of the re-assembling, observe "attention of assembling" it.

Refer to "DISASSEMBLY 1.TOP CASE ASSY"

FWD/BOTH UNIT (Ref. No. of EXPLODED VIEW : F) SLIDE VR UNIT (Ref. No. of EXPLODED VIEW : G) VFD UNIT (Ref. No. of EXPLODED VIEW : H) PANEL1 UNIT (Ref. No. of EXPLODED VIEW : I) PANEL2 UNIT (Ref. No. of EXPLODED VIEW : J) PANEL3 UNIT (Ref. No. of EXPLODED VIEW : K)

and "EXPLODED VIEW"

SHIELD PLATE

TOP CASE ASS

Refer to "DISASSEMBLY 6.MOTORDRIVE UNIT" Refer to "DISASSEMBLY 2.MAIN UNIT Refer to "DISASSEMBLY 7.CD MECHA UNIT"

MOTORDRIVE UNIT MAIN UNI

and "EXPLODED VIEW" and "EXPLODED VIEW" and "EXPLODED VIEW" MOTORDRIVE UNIT MAIN UNIT (Ref. No. of EXPLODED VIEW : D) (Ref. No. of EXPLODED VIEW : L)

CHASSIS STA

Refer to "DISASSEMBLY 8.CD IN UNIT"

CD IN UNIT (Ref. No. of EXPLODED VIEW : E)

CD MECHA UNI

CD IN UNIT

and "EXPLODED VIEW"

FRONT SUB PANE

Refer to "DISASSEMBLY 9.FRONT SUB PANEL"

and "EXPLODED VIEW"

Refer to "DISASSEMBLY 3.AC INPUT UNIT" Refer to "DISASSEMBLY 4.AUDIO UNIT" Refer to "DISASSEMBLY 5.POWER UNIT"

AC INPUT UNI

and "EXPLODED VIEW" and "EXPLODED VIEW" and "EXPLODED VIEW" AC INLET UNIT (Ref. No. of EXPLODED VIEW : B) AUDIO UNIT (Ref. No. of EXPLODED VIEW : C) POWER UNIT (Ref. No. of EXPLODED VIEW : A)

AUDIO UNI

POWER UNIT

DN-S3700

1. TOP CASE ASSY

Proceeding : TOP CASE ASSY

(1) Remove the screws and disconnect the FFC CABLE and connector wires.

SCREWS

4P CONNECTOR WIRE ( CX043 )

TOP CASE ASSY

SCREWS

15P FFC CABLE ( CX151 )

7P FFC CABLE ( CX072 )

12P CONNECTOR WIRE ( CX121 )

MAIN CHASSIS ASSY

Front side

4P CONNECTOR WIRE ( CX044 )

DN-S3700

(2) Pull out the KNOBs and remove the screws.

TOP SHIELD

PANEL 2 UNIT

SCREWS

BRACKET

SCREWS

PANEL 3 UNIT

TOP CASE ASSY

SLIDE VR UNIT

FWD/BOTH UNIT

PANEL 1 UNIT

KNOB

SELECT KNOB ASSY

FADER KNOB

DN-S3700

2. MAIN UNIT

Proceeding : TOP CASE ASSY → SHILD PLATE → MAIN UNIT

(1) Disconnect the FFC CABLE and connector wires and remove the screws.

SCREWS

SHIELD PLATE

MAIN UNIT

24P FFC CABLE ( CX241 )

22P FFC CABLE ( CX221 )

7P CONNECTOR WIRE ( CX071 )

18P FFC CABLE ( CX181 )

11P FFC CABLE ( CX112 )

SCREWS

DN-S3700

3. AC INPUT UNIT

Proceeding : TOP CASE ASSY → SHIELD PLATE → MAIN UNIT

→ CHASSIS STAY → AC INPUT UNIT

(1) Remove the screws for CHASSIS STAY.

SCREWS

CHASSIS STAY

AC INPUT UNIT

Rear side

AUDIO UNIT

MAIN CHASSIS ASSY

DN-S3700

(2) Disconnect the connector wire and remove the screws.

AC INPUT UNIT

2P CONNECTOR WIRE ( CY022 )

SCREWS

CORD BUSH

P.SW KNOB

INSULATION SHEET ( AC INPUT )

P.SW KNOB GUIDE

MAIN CHASSIS ASSY

DN-S3700

4. AUDIO UNIT

Proceeding : TOP CASE ASSY → SHIELD PLATE → MAIN UNIT

→ CHASSIS STAY → AUDIO UNIT

(1) Disconnect the FFC CABLE and connector wire and remove the screws.

SCREWS

9P CONNECTOR WIRE ( CY091 )

AUDIO UNIT

11P FFC CABLE ( CY112 )

SCREWS

Rear Side

POWER UNIT

MAIN CHASSIS ASSY

DN-S3700

5. POWER UNIT

Proceeding : TOP CASE ASSY → SHIELD PLATE → MAIN UNIT

→ CHASSIS STAY → POWER UNIT

(1) Disconnect the FFC CABLE and connector wire and remove the screws.

SCREWS

14P CONNECTOR WIRE ( CX141 )

18P FFC CABLE ( CY181 )

POWER UNIT

INSULATION SHEET ( POWER )

Rear Side

SCREWS

DN-S3700

MAIN CHASSIS ASSY

6. MOTORDRIVE UNIT

Proceeding : TOP CASE ASSY → MOTORDRIVE UNIT

(1) Disconnect the connector wire and remove the screws.

SCREWS

14P CONNECTOR WIRE ( CY141 )

MOTORDRIVE UNIT

Rear Side

MAIN CHASSIS ASSY

DN-S3700

7. CD MECHA UNIT

Proceeding : TOP CASE ASSY → CD MECHA UNIT

(1) Remove the screws.

SCREWS

CD MECHA. UNIT

Rear Side

MAIN CHASSIS ASSY

DN-S3700

8. CD IN UNIT

Proceeding : TOP CASE ASSY → CD IN UNIT

(1) Remove the screws.

Rear side

SCREWS

MAIN CHASSIS ASSY

CD IN UNIT

DN-S3700

9. FRONT SUB PANEL

Proceeding : TOP CASE ASSY → FRONT SUB PANEL

(1) Remove the screws.

SCREWS

Rear Side

SCREWS

MAIN CHASSIS ASSY

BRACKET ( CD MASK )

CD MASK

FRONT SUB PANEL

DN-S3700

SERVICE MODE

Function summary

1. SERVICE MODE

(1) Top level of the service mode

2. Checking the operations of the functions (Function CHK)

(1) Setting initialization (S3700 init) (2) D-Link operation check (D-Link Check) (3) Audio signal output (Audio Out) (4) Audio mute check (Mute Check) (5) USB device operation check (USB Test) (6) PS/2 operation check (PS/2 Check)

3. Checking the operations of the CD drive (CD Drive CHK)

(1) Disk type distinction display (Disc Type) (2) Servo data display (Servo Data) (3) Error rate display (Error Rate) (4) Pickup movement (PU Clean) (5) Remove the disc (Loader Clean) (6) Error code display (Err Code CHK) (7) Total running time display (Total Time) (8) Heat Run mode1 (H/R1) (9) Heat Run mode2 (H/R2)

4. Checking the operations of the switches (SW Check)

5. Checking the operations of the panel (Panel CHK)

(1) PARAMETERS knob (2) EFFECTS knob (3) PITCH SLIDER (4) FADER IN

The functions shown below are always available while in the panel check mode.

(5) All lit / DIM lit / All off

6. Checking the rotation pulse detection of the JOG disc (JOG CHK)

(1) Platter jog disc rotation direction/rotation pulse number (2) Turntable rotation direction/rotation pulse number

7. Checking the rotation speed of the platter (PLATTER CHK)

8. Version upgrade procedure of firmware

DN-S3700

1. SERVICE MODE

1.1. Top level of the service mode (Turning on the power in the service mode)

(1) Turn on the power while pressing the PARAMETERS knob and the button simultaneously.

The following appears on the VFD dot display section:

Service Mode Function CHK

(2) When the PARAMETERS knob is turned clockwise, the display on the second row of the VFD dot display section

switches in the following order: "Function CHK" → "CD Drive CHK" → "SW Check" → "Panel CHK" → "JOG CHK" → "PLATTER CHK". The display switches in the opposite order when the PARAMETERS knob is turned counterclockwise.

(3) The displayed mode can be selected by pressing the PARAMETERS knob.

2. Checking the operations of the functions (Function CHK)

(1) Turn the PARAMETERS knob to select "Function CHK" from the service mode's top menu, then press the PARAME-

TERS knob to set the function check mode. The following appears on the VFD dot display section:

Function CHK S3700 init

(2) When the PARAMETERS knob is turned clockwise, the display on the second row of the VFD dot display section switch-

es in the following order: "S3700 init" → "D-Link Check" → "Audio Out" → "Mute Check" → "USB Test" → "PS/2 Check".

The display switches in the opposite order when the PARAMETERS knob is turned counterclockwise. (3) The displayed mode can be executed by pressing the PARAMETERS knob. (4) Press the button to return to the top level of the service mode.

2.1. Setting initialization (S3700 init)

• The contents of the preset memory are set to the factory defaults (1) Turn the PARAMETERS knob to select "S3700 init" from the “Function CHK” mode's top menu, then press the PARAM-

ETERS knob to set "S3700 init" mode. The following appears on the VFD dot display section:

Function CHK S3700 init

(2) The Initialization mode can be executed by pressing the PARAMETERS knob. The following appears on the second

row of the VFD dot display section:

When initialization is completed:

Complete!

When initialization is not completed (Time out):

Fail

(3) Press the button to return to the top level of the function check mode.

2.2. D-Link operation check (D-Link Check)

• When executed with the D-Link terminal's Tx and Rx pins connected externally, the loop-back test is performed.

• The device checks whether the transferred and received contents are the same and the results are displayed. (1) Turn the PARAMETERS knob to select "D-Link Check" from the “Function CHK” mode's top menu, then press the PA-

RAMETERS knob to set "D-Link Check" mode. The following appears on the VFD dot display section:

D-Link Check. Exec to push.

(2) The displayed mode can be executed by pressing the PARAMETERS knob. The following appears on the second row

of the VFD dot display section:

When the process has completed normally:

Complete!

When the process has completed abnormally:

Fail

(3) Press the button to return to the top level of the function check mode.

DN-S3700

2.3. Audio signal output (Audio OUT)

• The device's built-in 24 bit/44.1 kHz sampling frequency audio signals are played from ADSP. (1) Turn the PARAMETERS knob to select "Audio OUT" from the “Function CHK” mode's top menu, then press the PA-

RAMETERS knob to set "Audio OUT" mode.

Information on the operations is displayed on the first row of the VFD dot display, information on the output signal on

the second row. (2) Turn the PARAMETERS knob clockwise and display the signal to be output from q to o on the VFD dot display.

Press the PARAMETERS knob while the signal to be output is displayed to set it. The selected signal is output from

ADSP.

q 1kHz -6dBFS signals are output from the left and right channels.

Reference

1kHz -6dBFS

w 1kHz 0dBFS signals are output from the left and right channels.

Max Level

1kHz 0dBFS

e 20Hz -6dBFS signals are output from the left and right channels.

Freq. 20kHz -6dBFS

r 1kHz -6dBFS signals are output from the left and right channels.

Freq. Chara. 1kHz

t 20kHz -6dBFS signals are output from the left and right channels.

Freq. Chara. 20kHz -6dBFS

Chara.

-6dBFS

y 1kHz - ∞ dBFS signals are output from the left and right channels.

Infinity

u 1kHz -6dBFS signals are output from the left and right channels.

Reference

1kHz -6dBFS

i 1kHz -6dBFS signals are output from the left channel.

- ∞ dBFS signals are output from the right channel.

Cross Talk R L:1kHz -6dBFS

o 1kHz -6dBFS signals are output from the right channel.

- ∞ dBFS signals are output from the left channel.

Cross R:1kHz -6dBFS

(3) Press the button to return to the top level of the function check mode.

Talk L

2.4. Audio Mute check (Mute Check)

• Switches the hardware's muting circuit on and off.

• Output a 1 kHz/0 dB audio signal from ADSP for both the left and right channels. (Use the [2.3 Audio signal output] sig-

nal.)

(1) Turn the PARAMETERS knob to select "

RAMETERS knob to set "

The current muting status is displayed on the VFD dot display.

Mute

Check

OFF

Mute Check

" mode.

" from the “Function CHK” mode's top menu, then press the PA-

Mute Check

(2) Turn the PARAMETERS knob clockwise to select "ON", counterclockwise to select "OFF" the mute control mode status. (3) Press the button to return to the top level of the function check mode.

DN-S3700

2.5. USB device operation check (USB Test)

• Use this procedure to test data writing on the device connected to the USB-A connector. (1) Turn the PARAMETERS knob to select "USB Test" from the “Function CHK” mode's top menu, then press the PARAM-

ETERS knob to set "USB Test" mode. The following appears on the VFD dot display section:

PUSH Param.

(2) The displayed mode can be executed by pressing the PARAMETERS knob. The following appearson the second row

of the VFD dot display section:

Now Testing

When the USB device is not connected:

(3) The test is completed, the following appears on the second row of the VFD dot display section:

When the process has completed normally:

When the process has completed abnormally:

(4) Press the button to return to the top level of the function check mode.

USB TEST

Fail

Complete!

Fail

2.6. PS/2 operation check (PS/2 Check)

• The PS /2 keyboard are set to the factory defaults. (1) When a PS/2 keyboard is connected, turn the PARAMETERS knob to select "PS/2 Check" from the “Function CHK”

mode's top menu, then press the PARAMETERS knob to set "PS/2 Check" mode. The following appears on the VFD

dot display section:

PUSH PARAM

KB Init.

(2) The displayed mode can be executed by pressing the PARAMETERS knob. The following appears on the VFD dot dis-

play section (The the second row is cleared):

KB Init OK

When the keyboard is not connected, the following appears on the VFD dot display section (The the second row is

cleared):

KB Init Fail

(3) When a key on the keyboard is pressed, the key that was pressed is displayed on the second row of the VFD dot display

(A to Z, 0 to 9). (4) Press the button to return to the top level of the function check mode.

DN-S3700

3. Checking the operations of the CD drive (CD Drive CHK)

(1) Turn the PARAMETERS knob to select "CD Drive CHK" from the service mode's top menu, then press the PARAME-

TERS knob to set the function check mode. The following appears on the VFD dot display section:

Service Mode

CD Drive CHK

(2) When the PARAMETERS knob is turned clockwise, the display on the second row of the VFD dot display section switch-

es in the following order: "Disc Type" → "Servo Data" → "Error Rate" → "PU Clean" → "Loader Clean" → "ErrorCode

CHK" → "Total Time" → "H/R1" → "H/R2". The display switches in the opposite order when the PARAMETERS knob is

turned counterclockwise. (3) The displayed mode can be executed by pressing the PARAMETERS knob. (4) Press the button to return to the top level of the service mode.

3.1. Disk type distinction display (Disc Type)

(1) Turn the PARAMETERS knob to select "Disc Type" from the “CD Drive CHK” mode's top menu, then press the PARAM-

ETERS knob to set "Disc Type" mode. (2) The currently loaded disc is identified, and "No Disc", "CD-DA/ROM", "CD-RW" or "Unknown" is displayed on the sec-

ond row of the VFD dot display. (3) Press the button to return to the top level of the CD Drive check mode.

3.2. Servo data display (Servo Data)

• The automatic adjustment value of the servo is displayed. (1) Turn the PARAMETERS knob to select "Servo Data" from the “CD Drive CHK” mode's top menu, then press the PA-

RAMETERS knob to set "Servo Data" mode. (2) When the PARAMETERS knob is turned clockwise, the display item is displayed on the first row of the VFD dot display,

the data on the second row, switching in the order q to Q5. The display switches in the opposite order when the PA-

RAMETERS knob is turned counterclockwise.

q "Fo Gain" (Focus gain data) w "Fo Balance" (Focus balance data) e "Fo Offset" (Focus offset data) r "Fo D.AC/BD" (Focus digital AC/BD data) t "Fo A.AC/BD" (Analog AC/BD data of focus) y "Tr Gain" (Tracking gain data) u "Tr Balance" (Tracking balance data) i "Tr Offset" (Tracking offset data) o "Tr D.AC/BD (Tracking digital AC/BD data) Q0 "Tr A.AC/BD" (Analog AC/BD data of tracking) Q1 "SD Offset" (SD offset data) Q2 "RF Offset" (RF offset data) Q3 "RF Gain" (RF gain data) Q4 "VCO Offset" (VCO offset data) Q5 "VCO Gain" (VCO gain data)

(3) With q to Q5 selected, press the 5 button to eject the disc, then reload the disc for readjust the servo. (4) Press the button to return to the top level of the CD Drive check mode.

3.3. Error rate display (Error Rate)

• The error rate of C2 is displayed. (1) Turn the PARAMETERS knob to select "Error Rate" from the "CD Drive CHK" mode's top menu, then press the PA-

RAMETERS knob to set "Error Rate" mode. (2) Play a CD and display the total number of C2 errors per second.

(3) "TOC Reading" is displayed on the second row of the VFD dot display if the CD's TOC has not yet been read. (4) When the TOC has been read, "C2-ERR" is displayed on the first row of the VFD dot display, and the total number of

C2 errors per second is displayed on the second row. (5) Press the Quick Jump button to perform the track search operation. (6) Press the button to return to the top level of the CD Drive check mode.

DN-S3700

3.4. Pickup movement (PU Clean)

• Move the pickup lens to any position. (1) Turn the PARAMETERS knob to select "PU Clean" from the "CD Drive CHK" mode's top menu, then press the PA-

RAMETERS knob to set "PU Clean" mode. The following appears on the VFD dot display section:

PU Clean

PUSH BEND+&-

(2) Press the PITCH BEND button to move the pickup lens. The pickup lens stops moving when the PITCH BEND button

is released.( button: Direction of outer / button: Direction of inner) (3) Press the button to return to the top level of the CD Drive check mode.

3.5. Remove the disc (Loader Clean)

• Turn the loading motor in the direction of disc ejection. (1) Turn the PARAMETERS knob to select "Loader Clean" from the "CD Drive CHK" mode's top menu, then press the

PARAMETERS knob to set "Loader Clean" mode. The following appears on the VFD dot display section:

Loader Clean PUSH SEARCH+

(2) Press the button and turn the loading motor in the direction of disc ejection. The motor stops turning when the

button is released. (3) Press the button to return to the top level of the CD Drive check mode.

3.6. Error code display (Error Code CHK)

(1) Turn the PARAMETERS knob to select "Error Code CHK" from the "CD Drive CHK" mode's top menu, then press the

PARAMETERS knob to set "Error Code CHK" mode. The following appears on the VFD dot display section:

Error

Data

XX_EYYY

(XX:Error logging number, EYYY:Error code, not error:turn off) (2) Up to 10 errors occurring in the CD mode are stored in the MEMO memory.

※ The errors remain stored in the memory until they are cleared, and once they are cleared up to 10 new errors are

stored.

(3) Turn the PARAMETERS knob to check the error logging data.

When the PARAMETERS knob is pressed, "Error Clear?" is displayed on the second row of the VFD dot display. When

the PARAMETERS knob is pressed again at this time, all the data is cleared. Turn the PARAMETERS knob to cancel. (4) Error code table

Error code Error contents

E204 Focus servo dropped during cuing.

E205 Focus servo dropped during pausing

E206 Focus servo dropped during manual searching or scanning.

E213 Subcode could no longer be read in the cue mode

E214 Subcode could no longer be read in the pause mode.

E215

Focus servo dropped during manual searching or scanning.

DN-S3700

3.7. Total running time display (Total Time)

(1) Turn the PARAMETERS knob to select "Total Time" from the "CD Drive CHK" mode's top menu, then press the PA-

RAMETERS knob to set "Total Time" mode. The following appears on the VFD dot display section:

Total Time

XXXXXh

(XXXXX:Total running time, Time [h]) (2)

When the PARAMETERS knob is pushed, it switches to the Total Time deletion mode.

The following appears on the VFD dot display section:

Time Clear

Cancel

(3) When the PARAMETERS knob is turned, the display on the second row of the VFD dot display section switches in the

"OK" or "Cancel". (4) Display "OK", then press the PARAMETERS knob to set. The total time is cleared and the display returns to as it was

in step (1). (5) Display "Cancel", then press the PARAMETERS knob to set. (6) Press the button to return to the top level of the CD Drive check mode.

The display returns to as it was in step (1).

3.8. Heat Run mode1 (H/R1)

(1) Turn the PARAMETERS knob to select "H/R1" from the "CD Drive CHK" mode's top menu.

When the disc is recognized, the following appears on the VFD dot display section:

HeatRun1

Push

When the disc is not recognized, or when the disc is not inserted, the following appears on the VFD dot display section:

Play

HeatRun1

Reading

(2) When the /13

The following appears on the second row of the VFD dot display section:

(XXXXX : Operation count) (3) If disc being used has less than 20 tracks, play all tracks. If disc has 21 or more tracks, skip to final track after playback

of first track has finished. (4) Once playback is completed, automatically eject and reload the disk and repeat the playback operation in step (3). (5) When there is an error, The following appears on the second row of the VFD dot display section:

( XXXXX: (6) To end the Heat Run1 mode, turn the power off.

button is pressed, Heat Run1 mode is started.

XXXX

E***

Operation count, E***:Error code)

XXXX

3.9. Heat Run mode1 (H/R2)

(1) Turn the PARAMETERS knob to select "H/R2" from the "CD Drive CHK" mode's top menu.

The following appears on the VFD dot display section:

HeatRun2

Push

(2) When disc is inserted the /13

he following appears on the second row of the VFD dot display section:

Play

button is pressed, first of Heat Run2 mode is started.

XXXX

(XXXXX : Operation count) (3) The disc is drawn in, loading is performed and the TOC is read.

(4) Once reading of the TOC is completed, the disc is ejected and the eject operation is completed. (5) The operation is repeated automatically from (3). (6) When there is an error, The following appears on the second row of the VFD dot display section:

E***

( XXXXX: (7) To end the Heat Run2 mode, turn the power off.

Operation count, E***:Error code)

XXXX

DN-S3700

3.10.Error code table

Error code Error contents

E100

E101 Tracking offset cannot be adjusted.

E102 Focus offset cannot be adjusted.

E103 Focus rough gain cannot be adjusted.

E104 Focus servo does not turn on/spindle is faulty.

E105 Tracking servo does not turn on.

E106 Tracking rough gain cannot be adjusted.

E200 Focus servo dropped during playback.

E201 Focus servo dropped during searching.

E202 Focus servo dropped during auto adjustment.

E203 Focus servo dropped during TOC reading.

E210 500 msec subode could not be read during playback.

E211 1 sec. subode could not be read during searching.

E212 500 msec subode could not be read during TOC reading.

E300 TOC could not be read within specified time.

E400 Disc holder did not close within specified time.

E401 Disc holder did not open within specified time.

E500 Slide error (inner circumference switch did not turn on within specified time).

E501 Search error (Slide error).

E502 Slide error (inner circumference switch did not turn on within specified time).

Disc cannot be detected.

E800 Track skipped while data being stored in memory and retrying was conducted as

specified, but continuous data storage was not possible (forced link mode set).

DN-S3700

4. Checking the operations of the switches (SW Check)

(1) Turn the PARAMETERS knob to select "SW Check" from the service mode's top menu, then press the PARAMETERS

knob to set the "SW Check" mode.

Service Mode

SW Check

(2) All the VFD characters are lights.

The following appears on the VFD dot display section.

FNE123 T B<> CPD BDR J-+

(3) When each switch is pushed

Brake → Turn off the "B" in the sixth place of second row. Dump → Turn off the "D" in the seventh place of second row. Reverse → Turn off the "R" in the eighth place of second row. Echo/Loop → Turn off the "1" in the fourth place of first row. Flanger → Turn off the "2" in the fifth place of first row. Filter → Turn off the "3" in the sixth place of first row. Eject → Turn off the "N" in the second place of second row. PLAYLIST → Turn off the "D" in the third place of second row. Fast Search → Turn off the "<" and ">" in the eleventh and twelfth place of first row. BACK → Turn off the "B" in the tenth place of first row. PITCH BEND → Turn off the "-" and " +" in the eleventh and twelfth place of second row. TITLE → Turn off the "T" in the eighth place of first row. FLIP → Turn off the "F" in the first place of first row. EXIT_RELOOP → Turn off the "E" in the third place of first row. CUE, PLAY → Turn off the "C" and "P" in the first and second place of second row. PLATTER MODE → Turn off the "J" in the first and tenth place of second row. A → Turn off the "(A" . B → Turn off the "B)" . MEMO → Turn off the "MEMO". PITCH → Turn off the "PITCH". TAP → Turn off the "BPM". KEY ADJUST → Turn off the "KEY ADJ.". CD → Turn off the "CD" . USB → Turn off the "USB" . MIDI → Turn off the "MIDI" . TIME → Turn off the "T." . DISPLAY → Turn off the "ELAPSED" . AUTO → Turn off the "KB" . EXIT → Turn off the "WFM". A/B TRIM → Turn off the "AAC". NEXT TRACK → Turn off the "MP3".

- (EFECT) → Turn off the "WAV". + (EFECT) → Turn off the "AIFF". 1 → Tu 2 → Turn off the "2". (10's place of track no) 3 → Turn off the "3". (1's place of track no) CLR1 → Turn off the "C1". (1's place of minutes' display) CLR2 → Turn off the "C2". (1's place of seconds' display) CLR3 → Turn off the "C3". (Frame display)

rn off the "1". (100's place of track no)

The following appears on the VFD dot display section.

Once all the switches have been pressed, The following appears on the VFD dot display section.

(4)

Complete!

Press

(5) Press the PARAMETERS knob return to the top layer in the service mode.

Param

DN-S3700

5. Checking the operation of the panel (Panel CHK)

(1) Turn the PARAMETERS knob to select "Panel CHK" from the service mode's top menu, then press the PARAMETERS

knob to set the "Panel CHK" mode.

The following appears on the VFD dot display section:

P E FW< BT

Other displays/indicators

(2) Display of the status and results of the various control elements on the panel surface and external input from the rear side.

PARAMETERS knob → Displays the "P" for the first place of the first row of the VFD dot display section.

EFFECTS knob → Displays the "E" for the first place of the second row of the VFD dot display section.

Vinyl playback direction selector lever

Pitch FADER → The pitch signal's AD conversion value is displayed on the pitch display section.

FADER IN → Displays the "FC FP" for the sixth place of the first row of the VFD dot display section.

TAP button → When the TAP button is pressed, toggles between:

(3) Press button to return to the top level of the CD drive check mode.

FC FP

Track number display section : "***" (3-digit, pitch fader center value) Pitch display section : "****" (4-digit, pitch slider status)

Toggles the display of the " ■ " for the second place of the first row of the VFD dot display section between white and black each time the knob is pressed. Displays the ">" (clockwise turn) for the fourth place of the first row or the "<" (counterclockwise turn) for the third place of the first row when the knob is turned, according to the direction in which the knob is turned.

Toggles the display of the " ■ " for the second place of the second row of the VFD dot display section between white and black each time the knob is pressed. Displays the ">" (clockwise turn) for the fourth place of the second row or the "<" (counterclockwise turn) for the third place of the second row when the knob is turned, according to the direction in which the knob is turned.

→ When "FDW" is selected, "FW< BT" is displayed in the third row of the VFD dot display sec-

tion. When "BOTH" is selected, "FW >BT" is displayed in the third row of the VFD dot display section.

The center tap value is displayed in three digits on the track number display section.

Displays " ■ " at the right of "FC FP" on the VFD dot display section while the "cue or play" fade-in signal is being detected.

All LEDs lit + VFD fully lit → LED DIM lit (two LEDs on the sides of the VFD lit) + VFD fully off → All LEDs off (for LEDs on the sides of the VFD, remaining two left and right lit) + VFD set to normal display.

6. JOG pulse check mode (JOG CHK)

• Displays platter jog disc and turntable rotation pulse input number. (1)

Turn the PARAMETERS knob to select "JOG CHK" from the service mode's top menu, then press the PARAMETERS

knob to set the "JOG CHK" mode.

JOG

(***** : Count value)

COUNT<*****>

TT COUNT<*****>

6.1. Platter jog disc pulse detection (PLATTER JOG)

• When the platter jog disc is turned, displays ">" (clockwise) or "<" (counterclockwise), according to the direction of rotation.

Displays the counter value of the platter jog disc's rotation pulse number at "*****" on the VFD dot display section, within the range of 0 to 65535. Counts up when turned clockwise, down when turned counterlcockwise.

6.2. Turntable pulse detection (TT)

• When the turntable is turned, displays ">" (clockwise) or "<" (counterclockwise), according to the direction of rotation.

Displays the counter value of the turntable's rotation pulse number at "*****" on the VFD dot display section, within the range of 0 to 65535. Counts up when turned clockwise, down when turned counterlcockwise.

The following appears on the VFD dot display section:

DN-S3700

7. Platter check mode (PLATTER CHK)

• Displays the platter jog disc and turntable rotation pulse input number. (1)

Turn the PARAMETERS knob to select "PLATTER CHK" from the service mode's top menu, then press the PARAME-

TERS knob to set the "PLATTER CHK" mode.

33.3rpm Trq:h 3336(3328,3344)

-0.08%(0.48%)

(***** : Count value)

The first row of the VFD dot display section:

"33.33rpm" : Target rotation speed ← The TAP button and the rotation of the EFFECTS knob can be used to

change for target rotation speed (design verification.)

"Trq:H" : Torque ← 1, 2 and 3 buttons can be used to switch to H, M and L for torque (design verification.)

The second row of the VFD dot display section:

"3336" : Displays the current rotation speed. (4 digits with decimal point omitted) "(3328,3344)" : Displays (minimum rotation speed, maximum rotation speed). Displays "mask time" for the several

seconds during which rotation is stabilizing.

The third row of the VFD dot display section:

"- 0.08%" : Displays the error with respect to the target rotation speed. ( ±with 2-digit value and 2-digit decimal) "( 0.48%)" : Displays the range of fluctuation with respect to the target rotation speed. (2-digit value and 2-digit

decimal)

(2) Press the button to return to the top level of the CD drive check mode.

The following appears on the VFD dot display section:

(PARAMETERS, FADER IN) (EFFECTS)

(Vinyl playback direction selector)

8. Version upgrade procedure of firmware

Use the procedure described below to update the firmware to a newer version.

• Store the file for updating the firmware in the root directory of USB device.

• If the file for updating the firmware is stored on a USB device, connect the USB device to the USB A terminal.

Note : Do not turn off the power or disconnect the USB cable or the USB device while the firmware is being updated.

If firmware updating is not completed normally, some operations may no longer be guaranteed to work and it may not be possible to update the firmware again.

(1) Turn on the power while pressing the button, the button and the PARAMETERS knob simultaneously.

The following appears on the VFD dot display section:

VerUP MODE*

Push Cue

(2)

Press the CUE button. The following appears on the VFD dot display section:

0100>>0111

Push Play

(

0111 : Old version, 0111 : New version)

(3) Check the version number. If OK, press the button to begin updating.

The following appears on the VFD dot display section:

Now Updating

Don,t PowerOFF

(4) When firmware updating is completed, updating of the sub-microprocessor begins automatically.

The following appears on the VFD dot display section:

SUB Updating

XXXX>>****

(

XXXX : Old version, **** : New version)

(5) Once firmware updating is fully completed, the following appears on the VFD dot display section:

Complete!

PleasePowOFF

(6) Turn the power off and disconnect the USB device from the USB port.

DN-S3700

TROUBLE SHOOTING

FLOW CHART NO.1 (8U-110042:POWER UNIT)

The power cannot be turned on.

Is the fuse normal?

Yes

Is normal state restored when once unplugged power cord is plugged again after several seconds?

Yes

Is the +12V line voltage normal?

Yes

Check each rectifying circuit of the secondary circuit and replace it if defective.

FLOW CHART NO.2 (8U-110042:POWER UNIT)

The fuse blows out.

Check the presence that the primary component is leaking or shorted and replace it if defective.

After servicing, replace the fuse.

FLOW CHART NO.3 (8U-110042:POWER UNIT)

+5V is not outputted.

Is the +12V line voltage normal?

Check IC906 and the parts in surrounding, and replace it if defective.

Yes

See FLOW CHART NO.2 <The fuse blows out.>

Check if there is any leak or short-circuiting on the primary circuit component, and replace it if defective. (C903,C906,C907,C909,C914,C915,C918,C948,L901 ,L902,T801)

Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side, and replace it if defective.

Check if there is any leak or short-circuiting on the primary circuit component, and replace it if defective. (C903,C906,C907,C909,C914,C915,C918,C948,L901 ,L902,T801)

FLOW CHART NO.4 (8U-110042:POWER UNIT)

+3.3V is not outputted.

Is the +5V line voltage normal?

Yes Check IC905 and the parts in surrounding, and replace it if defective.

FLOW CHART NO.5 (8U-110042:POWER UNIT)

+9VA is not outputted.

Is the voltage of +9V or more supplied to Corrector terminal of TR813?

Yes

Check TR813 and the periphery circuit, and replace it if defective.

FLOW CHART NO.6 (8U-110042:POWER UNIT)

-9VA is not outputted.

Is the voltage of -9V or less supplied to Corrector terminal of TR814?

Yes Check TR814 and the periphery circuit, and replace it if defective.

See FLOW CHART NO.3 <+3.3V is not outputted>

Check D811 and the periphery circuit, and replace it if defective.

Check D810 and the periphery circuit, and replace it if defective.

DN-S3700

FLOW CHART NO.7 (8U-310011:MAIN UNIT)

+12V is not outputted.

Is 3.3V voltage supplied to 7pins(PVCC) of IC403?

Yes Check IC403 and the periphery circuit, and replace it if defective.

FLOW CHART NO.8 (8U-110043:PANEL UNIT)

The VFD does not light up.

Check whether parts C426 and C427 are linked, short-circuited or open and whether FB402 is open, and replace any faulty parts.

Is 3.3V voltage supplied to 44pins(VDD) of FL901?

Yes

Is 40V voltage supplied to 41pins(HV2) of FL901?

Yes Is 30V voltage supplied to 40pins(HV1) of FL901?

Yes

Are the filament voltage supplied between 1pin and 49pin of the fluorescent display tube (FL901)?

Yes

Is voltage supplied to 34pins(RESET) of FL901?

Yes Replace the fluorescent display tube(FL901).

FLOW CHART NO.9 (8U-110043:PANEL UNIT)

The key operation is not functioning.

Are the contact point and the installation state of the tact switche normal?

Yes

Does LED light correctly ?

Yes When pressing each switches, do the voltage of each pin of IC702 increase?

Yes Replace IC702(IC802).

Check the +3.3V line and service it if defective.

Check the HV(+40V) line and service it if defective.

Check ZD901 and the periphery circuit, and service it if defective.

Check the F1/F2 line and service it if defective.

Check the RESET line and service it if defective.

Re-install the switches correctly or replace the poor switch.

Check the TR701~708and their periphery, and service it if detective.

Check the switches and their periphery, and service it if detective.

FLOW CHART NO.10 (8U-110042:POWER UNIT)

Both functions of picture and sound do not operate normally.

The USB memory in which test signal (MP3,WAV)

of 1kHz/0dB is written is prepared.

With USB memory playback mode, with the test signal of 1kHz/0dB it repeats between B from A and puts in playback state. Are the audio signals outputted to 11,12pin(Rch) and 17,18pin(Lch) of IC802?

Yes

Are the audio signals outputted to 7pin(Rch) and 1pin(Lch) of IC804?

Yes

Is the TR807 collector L (-9V) when muting is canceled?

Yes

Check periphery circuit from 7pin and 1pin to JK801 of IC804, and

replace it if defective.

DN-S3700

Check the input signal from CY112 to IC802 and their periphery, and service it if detective.When the input signal is correct, IC802 or IC803 is replaced. (Note:For the IC802 OUT signal, the right and left are inversely output internally.)

Check periphery circuit from 14pin and 15pin to IC804 of IC802, and service it if defective. When the periphery circuit is correct, IC804 is replaced.

Check TR807 and the periphery circuit, and service it if defective.

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