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For U.S.A., Canada &
Europe model

SU
PP
LE
SERVICE MANUAL ME
NT

MODEL DN-C680 Ver. 1
CD PLAYER

We have two version of DN-C680. The new version of
DN-C680 is replaced discontinued parts of the old ver-
sion. (CD mechanism, microprocessor and D/A conver-
ter etc.)
Serial number of new version are renumbered from
*****50001.
This service manual is supplement for new version of
DN-C680 and only mentioned difference between old
and new version. So, please refer to previously issued
service manual of DN-C680 when servicing.

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

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

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

16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN

X0179V.01 DE/CDM 0308
DN-C680 2

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.

500V

1M

(1)

(2)

(1)

(2)

2
DN-C680 3

BLOCK DIAGRAM

ACD25

GU-3578-2

4M DRAM

AN22002A

ACD27

MN102H60KDA XCS05XL PCM1738

YM3437 RS-232C RS-232C

GU-3578-1 HD26C32A
RS-422A RS-422A

M66005AFP HD26LS31FP

GU-3578-3

+7V_D1 +6V

+3.3V_D1 +3.3V

+5V_A2
FOR DSP, MECHA

Not use
+12V_A +16V_A NJM5532

+5V_A1

-12V_A NJM5532

3
DN-C680 4

CONFIRMING THE SERVO
CAUTION:
The Optical Pick-up used for CD player may invite defection by an external noise, such as electrostatic, etc.,
please pay the following attention.
1. Use a conductive mat on a working table to avoid electrostatic damage.
2. A working personnel should use a wrist strap to ground human body.
3. Tools, etc., specially for a soldering iron must use with its tip grounded and without leakage of electricity.
Utmost care must be taken to your clothes for electrostatic damaging in a low humidity environment.

Required Measuring Implement
1. Dual trace oscilloscope
2. Reference disc (TCD784 or CO-74176)

1. Actuating the Service Program and Servo Confirming Method
1. Turn the power switch off.
2. While simultaneously pushing the STANDBY/CUE button and PLAY/PAUSE button, turn the power on.
3.
3. Turn SELECT knob. is version number of "microcomputer program.
Displayed indication Display shows " and each pressing of PLAY button opens or closes the tray.
4. 4 figures onopens, set the adjustment disc (TCD784 or CO-74176)
As the tray the left are program version of remote control, and 4 figures on the right are program version of main body
5. mechanism. knob ("
Turn SELECT " is displayed), also, press PLAY/PAUSE button.
4. Tracking error signal Display observed withand connection below. (Fig1)
Turn SELECT knob. can be shows " " the each pressing of PLAY button opens or closes the tray.
5.
6. As the tray opens, set the " is displayed), also, pressor CO-74176) button.
Turn SELECT knob (" adjustment disc (TCD784 PLAY/PAUSE
6. Turn SELECT knob ("
HF signal can be observed with the connectionpress PLAY/PAUSE button.
" is displayed), also, below. (Fig2)
7. Tracking error signal("
Turn SELECT knob can beis displayed), also, press PLAY/PAUSE button.
" observed with the connection below. (Fig1)
7. Turn SELECT knob ("
By pressing button servo automatic adjustmentpress PLAY/PAUSE button.
" is displayed), also, value can be called. (Ref. Table below)
HF signal can be observed with the connection below. (Fig2)
8. Turn SELECT knob (" " is displayed), also, press PLAY/PAUSE button.
Oscilloscope
By pressing button servo automatic adjustment value can be called. (Ref. Table below) Oscilloscope
TP101 TP101
1 1
NC NC
2 Oscilloscope 2 Oscilloscope
VREF VREF
TP101 3 TP101 3
HF 1 HF 1
NC 4 NC 4
TE 2 TE 2
VREF 5 VREF 5
NC 3 NC 3
HF 6 HF 6
FE 4 FE 4
TE TE
5 5
NC Fig1 NC Fig2
6 6
FE FE

Fig1 Adjustment Value Fig2
Adjustment Item
TRACK Portion Adjustment
Indication Item indication No. indication
at S and F portions. at M portion.
Error Code Adjustment Value 00
Adjustment Item
TRACK Portion Adjustment
Indication Focus Gain (FG)
Item indication
125 ~ 728 No. indication
01
at S and F portions. at M portion.
Focus Balance (FBAL) 120 ~ 120 02
Error Code 00
04 Focus Offset (FOFS) 57 ~ 57 03
Focus Gain (FG) 125 ~ 728 01
Tracking Gain (TG) 101 ~ 808 04
Focus Balance (FBAL) 120 ~ 120 02
Tracking Balance (TBAL) 105 ~ 105 05
04 Focus Offset (FOFS) 57 ~ 57 03
Tracking Offset (TOFS) 31 ~ 31 06
Tracking Gain (TG) 101 ~ 808 04
* When adjustment range exceeds, replace pick-up.
Tracking Balance (TBAL) 105 ~ 105 05
Tracking Offset (TOFS) 31 ~ 31 06
* When adjustment range exceeds, replace pick-up.

4
DN-C680 5

2. What is Service Program
Service program is a special program intended for confirming servo.

3. Contents of Service Program
While simultaneously pushing the STANDBY/CUE and PLAY/PAUSE buttons, turn the power on. (TRACK Indication "00")
After actuating the service program, select an aiming process number with the SELECT KNOB, PITCH button, and TIME
button, and push the PLAY/PAUSE button to execute processing, The process number is then displayed on the TRACK
indication portion.

Work No.
(TRACK Function Contents
Indication)
01 OPEN/CLOSE Performs OPEN/CLOSE each tome when the PLAY/PAUSE button is pushed.
02 Tracking Error Check tracking error signal, then performs the Automatic Adjustment.
03 HF Signal Check HF signal.
Automatic
04 Turn the Search dial to display the Automatic adjustment data.
Adjustment call
Cleaning of
05 Tray opens and pick-up moves out of mechanism, and clean the lens.
Pick-up Lens
Focus Gain Changing Select Gain with search dial. Press PLAY/PAUSE button, the display lights that will
be newly memory in EEPROM.
when select data becomes big or small, the Gain is up or down.
In normally, do not change the data that is setted by 750.0.
The set No. and frequency in the EEPROM are storred as below:
No. Frequency No. Frequency
(SEC indicator) (FRAME indicator) (SEC indicator) (FRAME indicator)
06 -7 477 Hz 1 847 Hz
-6 509 Hz 2 956 Hz
-5 543 Hz 3 1079 Hz
-4 579 Hz 4 1218 Hz
-3 618 Hz 5 1375 Hz
SELECT knob -2 659 Hz 6 1552 Hz
-1 703 Hz 7 1753 Hz
0 750 Hz 8 1978 Hz
Tracking Gain Select Gain with Search dial. Press PLAY/PAUSE button, the display lights that will
Changing be newly memory in EEPROM.
When select data becomes big or small, the Gain is up or down.
In normally, do not change the data that is setted by 1000.0.
When sound out is occured by oscillation, please raise gain.
But there is sound out easily by defective disc.
The set No. and frequency in the EEPROM are storred as below:
No. Frequency No. Frequency
07 (SEC indicator) (FRAME indicator) (SEC indicator) (FRAME indicator)
-7 637 Hz 1 1129 Hz
-6 679 Hz 2 1274 Hz
-5 724 Hz 3 1439 Hz
-4 772 Hz 4 1624 Hz
-3 824 Hz 5 1834 Hz
-2 879 Hz 6 2070 Hz
-1 938 Hz 7 2337 Hz
0 1000 Hz 8 2638 Hz
Repeats OPEN/CLOSE of tray, servo ON, and TOC read and displays the number
PITCH 08 CHUCKING Test
of the tray OPEN/CLOSE times with the Time indicator.
Heat Run Repeats OPEN/CLOSE of tray, repeats playing the first and the last programs of
TIME 09 music on the disc. When an error occurs, displays error code and stops.
(No Skip Check)
Turn the search dial to display the logging error codes in the occurred order.
Kinds of displayed Error Code
(1) Error Code Table (Appears only at Heat Run and Chucking Test function)
(2) E204 Servo down during Cue
REPEAT 11 Error code check (3) E205 Servo down during pause
(4) E206 Servo down during manual search and scan
(5) E214 Unable to read the subcode during CUE
(6) E215 Unable to read the subcode during PAUSE
(7) E216 Unable to read the subcode during the manual serach and scan

5
DN-C680 6

Error Code Table (Appears only at Heat Run and Chucking Test function
Error Code at TRACK portion Contents No. at m portion Contents
Automatic Adjustment Error
00 Unable to detect disc
01 Unable to adjust tracking offset
02 Unable to adjust focus offset
E1
03 Unable to adjust focus fine gain
04 Unable to actuate focus
05 Unable to actuate tracking
06 Unable to adjust tracking fine gain
00 Servo down during playback
01 Servo down during search
02 Servo down during automatic adjustment
E2 03 Servo down during TOC read
10 Unable to read the subcode between 500 msec. during the playback
11 Unable to read the subcode between 1 sec. during the search
12 Unable to read the subcode between 500 msec. during the TOC read
E3 Unable to read TOC
00 Unable to close the disc holder in the regular time
E4
01 Unable to open the disc holder in the regular time
E5 Slide error
E6 Sound skip error (only at the sound skip check)

Detailed error can be display by select knob when error occurs.

Error indication
TR MIN SEC FRAM
Accumulated number of open/close
Error Code Contents No. function of the tray prior to Error
occures.
Indication state when error occurs
01 FG data
02 FBAL data
03 FOFS data
04 TG data
05 TBAL data
06 TOFS data

6
DN-C680 7

CONFIRMING THE AUDIO
1. Necessary Equipment for Adjustment
Distortion--Factor Meter
VTVM
Low-Pass Filter (20kHz)
Reference Disc; DENON Audio Technical CD (38C39-7174)

2. Prior to Starting the Adjustment
1) Audio circuit shall be adjusted after adjustment of servo circuit.

3. Output Level Adjustment
1) Connect VTVM to the output connector of DN-C680.
Use 1:1 600 ohm Audio Transformer between the unit and VTVMs in order for matching the unbalanced input of VTVM
and the active bakanced output of DN-C680 as shown in figure.

Audio Transformer
DN-C680 LPF Distortion Meter
1:1

Line Out
600ohm
(20kHz)

Connection for Output Level Adjustment

2) Play track number "49".
3) While reading VTVM indication, adjust VR407 (L-ch) and VR408 (R-ch) so that the output level attains +18dBm
(or desired level).

R L
VR408 VR407

Location of Level Adjustment VRs

7
DN-C680 8

SEMICONDUCTORS
Only major semiconductors are shown, general semiconductors etc. are omitted to list.

1. IC's
Note : Abbreviation ahead of IC No. indicates the name of P.W.B., etc.

MA : Main P.W.B.
DK : Display/Key P.W.B.

MN102H60KDA (MA: IC137)

75 51
76 50

100 26
1 25

MN102H60KDA Terminal Function

Pin
Port Name Symbol I/O DET Ext Res Ini Note
No.
1 P60,WAIT,SBT2 CDMUTE O Lv Pu H H DSP(MN662724) control signal:Mute 'H':Mute
2 -RE -RE O - Pu H - Read signal
3 -WEL,P62 -WE O - Pu H - Write signal
4 -WE,P63 -SMRDY I Lv Pu H - ACD27(SMPTE option unit) control signal:Ready
5 -CS0 -CS0 O - Pu H L Chip select signal(CS0:Flash ROM)
6 -CS1,P51,TMI30B -CS1 O - Pu H - Chip select signal(CS1:IO Expander port0-3)
7 -CS2,P52,TMI40A -CS2 O - Pu H - Chip select signal(CS2:IO Expander port4-7)
8 -CS3,P53,TMI40B -CS3 O - Pu H - Chip select signal(CS3:ACD27(SMPTE option unit))
9 P54,-BREQ ROMCLK O - Pu H - EEPROM(S24C04) control signal:Clock
10 P55,-BRACK ROMDAT I/O - Pu H - EEPROM(S24C04) control signal:Data
11 P56,-BSTRE,TMI51A P56 - - - - - Not used. Open
12 -WORD -WORD IN - H H H Data bit bus width select 'H':8bit
13 A0 A0 O - - Unfix - Address bus
14 A1 A1 O - - Unfix - Address bus
15 A2 A2 O - - Unfix - Address bus
16 A3 A3 O - - Unfix - Address bus
17 Vdd VDD - - - - - Power supply(+3.3V)
18 fosc,PB0,BIBT1,BIBT2 TRCK O - - fosc - DIT(YM3437C) control signal:Clock
19 Vss Vss - - - - - GND(0V)
20 XI,PB1 TRDAT O - Pu H - DIT(YM3437C) control signal:Data
21 XO XO - - - - - Not used. Open
22 Vdd Vdd - - - - - Power supply(+3.3V)
23 OSCI OSCI I - - - - X'tal input(12.288MHz)
24 OSCO OSCO O - - - - X'tal output(12.288MHz)
25 MODE MODE I - L L L Mode select 'L':Processor mode
26 A4 A4 O - - Unfix - Address bus
27 A5 A5 O - - Unfix - Address bus
28 A6 A6 O - - Unfix - Address bus

8
DN-C680 9

Pin
Port Name Symbol I/O DET Ext Res Ini Note
No.
29 A7 A7 O - - Unfix - Address bus
30 A8 A8 O - - Unfix - Address bus
31 A9 A9 O - - Unfix - Address bus
32 A10 A10 O - - Unfix - Address bus
33 A11 A11 O - - Unfix - Address bus
34 AVdd AVdd - - - - - Analog power supply(+3.3V)
35 A12 A12 O - - Unfix - Address bus
36 A13 A13 O - - Unfix - Address bus
37 A14 A14 O - - Unfix - Address bus
38 A15 A15 O - - Unfix - Address bus
39 A16,P40 A16 O - - Unfix - Address bus
40 A17,P41 A17 O - - Unfix - Address bus
41 A18,P42 A18 O - - Unfix - Address bus(Not used.)
42 A19,P43 A19 O - - Unfix - Address bus(Not used.)
43 VREF- VREF- - - - - - Analog reference voltage supply
44 A20,P44,AN4 A20 O - - Unfix - Address bus
45 A21,P45,AN5 A21 O - - Unfix - Address bus
46 A22,P46,AN6,STOP CCLK O - - - H FL DRIVER(M66005),LED DRIVER(NJU3713),PARALLEL
DRIVER(NJU3715) control signal:Clock
47 A23,P47,AN7,WDOUT CDAT O - - - H FL DRIVER(M66005),LED DRIVER(NJU3713),PARALLEL
DRIVER(NJU3715) control signal:Data
48 P80,TMI40A -LDC I - - - - FPGA(XCS05XL) control signal:Ldc(not used)
49 P81,TMI40B DONE I - Pu L - FPGA(XCS05XL) control signal:Done
50 P82,TMOIO,SBT3, -PSTB0 O - Pu H H NJU3713 control signal:Strobe
SCL3,SBI2
51 P83,TM4IO,SBI3 SYSRSTO O - Pu H - System reset output 'L':Reset
52 P84,TM7IO,SBO3,SDA3 TRCL0 O - - - H DIT(YM3437C) control signal:Strobe
53 P85,TM9IOA,SBT4, TRCL1 O - - - - FPGA(XCS05XL) initialize status
SCL4,SBO2 ('L':While initializing,'H':Operation(*1))
54 VREF+ VREF+ - - - - - Analog reference voltage supply
55 P86,TM9IOB,SBI4 RXD I - Pu H - Serial port(Receive)
56 P87,TM9IC,SB04,SDA4 TXD O - - - - Serial port(Transmission)
57 P90,TM8IOA,BIBT1, SUBQ I - Pu H - DSP(MN662724) subcode data input
-DMAREQ1
58 P91,TMIOIOA,BIBT2, SENSE I - Pu H - DSP(MN662724) servo status input
-DMAACK1
59 P92,TMIOIOB, -FLOCK I - Pu H - DSP(MN662724) status input 'L':focus on
-DMAREQ0
60 P93,TMIOIC, -TLOCK I - Pu H - DSP(MN662724) status input 'L':tracking servo on input
-DMAACK0
61 AVss AVss - - - - - Analog GND(0V)
62 P94,AN0 STAT I - Pu H - DSP(MN662724) status input
63 P95,AN1 SQCK O - - - H DSP(MN662724) control signal:SQCK(subcode read clock)
64 P96,AN2 -INIT I - Pu H - FPGA(XCS05XL) control signal:Init
65 P97,AN3 -PGM O - Pu H - FPGA(XCS05XL) control signal:Program
66 Vdd VDD - - - - - Power supply(+3.3V)
67 P70,SBT0,-RAS MDAT O - - - - DSP(MN662724),DAC(PCM1738) control signal:Data
68 P71,SBIO,-LCAS,-CAS -CSEN O - Pu H H KEY MATRIX(74HC138) control signal:enable
69 P72,SBD0 -PRST O Lv Pd L - Round IC reset signal
70 P73,SBT1,DMUX CCLK O - - - - FPGA(XCS05XL) control signal:Clock
71 P74,SBI1 MCLK O - - - - DSP(MN662724),DAC(PCM1738) control signal:Clock
72 P75,SBO1 SPDATA O - - - - FPGA(XCS05XL) control signal:Data
73 PULLUP PULLUP I - Pu H - Pull up 33-50K
74 PULLUP PULLUP I - Pu H - Pull up 33-50K
75 -NMI -NMI I - Pu H - Not used. Open
76 PA0,-IRQ0 BLKCK I Ed Pu - - DSP(MN662724) subcode input(interrupt)
77 PA1,-IRQ1 RFDET I Ed Pu H - DSP(MN662724) HF detect signal(not used)

9
DN-C680 10

Pin
Port Name Symbol I/O DET Ext Res Ini Note
No.
78 PA2,-IRQ2 -SMIRQ I Ed Pu H - ACD27(SMPTE option unit) control signal:Interrupt request
79 PA3,-IRQ3 -TRSLA I Ed Pu - - Track select signal input(interrupt)
80 PA4,-IRQ4,TMI51B -TRSLB I Ed Pu - - Track select inverted signal(interrupt)
81 ADSEP ADSEP I - H H H Mode select 'H':Address data separation mode
82 -RST -RST I Lv - L - Reset signal 'L':Reset
83 Vdd Vdd - - - - - Power supply(+3.3V)
84 D0 D0 I/O - Pu H - Data bus
85 D1 D1 I/O - Pu H - Data bus
86 D2 D2 I/O - Pu H - Data bus
87 D3 D3 I/O - Pu H - Data bus
88 D4 D4 I/O - Pu H - Data bus
89 D5 D5 I/O - Pu H - Data bus
90 D6 D6 I/O - Pu H - Data bus
91 D7 D7 I/O - Pu H - Data bus
92 Vss Vss - - - - - GND(0V)
93 P10,TM810B -MLE O - - - - DAC(PCM1738) control signal:Latch
94 P11,TM81C -MLD O - - - - DSP(MN662724) control signal:Latch
95 P12,TM11IOA -MRST O Lv Pd L L DSP(MN662724) control signal:Reset
96 P13,TM11IOB P13 I Lv Pu H - ASP(MN19412A) status0 input
97 P14,TM11IOC P14 I Lv Pu H - ASP(MN19412A) status1 input
98 P15,TM12IOA P15 O Lv - - H ASP(MN19412A) ext.dram/disc data compare start signal
'L':start
99 P16,TM12IOB MSCL O - - - H ASP(MN19412A) control signal:Clock
100 P17,TM12IC MSDA O - - - H ASP(MN19412A) control signal:Data

*1: LED (LD101) lights up during initialization of FPGA (IC112) (it is less than 1 second at the time of normal), and LED puts out the
light after initialization.
When LED is carrying out continuation lighting even of after initialization, please check whether the control signal line for FPGA
initialization (pin 49, 64, 65, and 70) is carrying out the electrical connection, or it does not short-circuit with other signal lines,
and correct fault.
When LED is still carrying out continuation lighting, please correct in order of exchange of FLASH ROM (IC106), exchange of
FPGA (IC112), and exchange of a microcomputer (IC137).

10
DN-C680 11

XCS05XL-5VQ100C (MA: IC112)

75 51
76 50

100 26
1 25

XCS05XL-5VQ100C Terminal Function

Pin
Port Name Symbol I/O Ext Note
No.
1 GND GND - - GND(0V)
2 I/O,GCK1 I/O - - Not used. Open
3 I/O -PRST I Pd Reset signal 'L':Reset(internal register cleared)
4 I/O,TDI I/O - - Not used. Open
5 I/O,TCK I/O - - Not used. Open
6 I/O,TMS I/O - - Not used. Open
7 I/O -R I Pu Read signal
8 I/O -W I Pu Write signal
9 I/O -CS1 I Pu Chip select signal
10 I/O -CS2 I Pu Chip select signal
11 GND GND - - GND(0V)
12 VCC VCC - - Power supply(+3.3V)
13 I/O D0 I/O Pu Data bus
14 I/O D1 I/O Pu Data bus
15 I/O D2 I/O Pu Data bus
16 I/O D3 I/O Pu Data bus
17 I/O D4 I/O Pu Data bus
18 I/O D5 I/O Pu Data bus
19 I/O D6 I/O Pu Data bus
20 I/O D7 I/O Pu Data bus
21 I/O,GCK2 CHGOFT O - Off track detect sensitivity select signal
22 M1 M1 I - FPGA(XCS05XL) Mode select 'H':Slave serial mode
23 GND GND - - GND(0V)
24 M0 M0 I - FPGA(XCS05XL) Mode select 'H':Slave serial mode
25 VCC VCC - - Power supply(+3.3V)
26 -PWRDWN -PWRDWN I - FPGA(XCS05XL) control signal:Power down(Not used. Internal pullup)
27 I/O,GCK3 A20 I - Address bus
28 I/O(HDC) CHGICO O - RF equalizer specification select signal
29 I/O A21 I - Address bus
30 I/O(-LDC) I/O O Pu FPGA(XCS05XL) control signal:-LDC(Not used)
31 I/O PDI0 I Pu Parallel port 'L':Play command input
32 I/O PDI1 I Pu Parallel port 'L':Pause command input
33 I/O PDI2 I Pu Parallel port 'L':Standby/cue command input
34 I/O PDI3 I Pu Parallel port 'L':Track+ command input
35 I/O PDI4 I Pu Parallel port 'L':Track- command input

11
DN-C680 12

Pin
Port Name Symbol I/O Ext Note
No.
36 I/O(-INIT) -INIT O Pu FPGA(XCS05XL) control signal:-INIT
37 VCC VCC - - Power supply(+3.3V)
38 GND GND - - GND(0V)
39 I/O PDI5 I Pu Parallel port 'L':Forward search command input
40 I/O PDI6 I Pu Parallel port 'L':Reverse search command input
41 I/O PDI7 I Pu Parallel port 'L':Fader start command input
42 I/O PDI8 I Pu Parallel port(Reserved)
43 I/O PDI9 I Pu Parallel port(Reserved)
44 I/O PDI10 I Pu Parallel port(Reserved)
45 I/O -CLOSE O Pu Loading motor driver(BA6287) control signal 'L':Close
46 I/O -OPEN O Pu Loading motor driver(BA6287) control signal 'L':Open
47 I/O -LIMITSW+ I Pu Laser pickup position status signal 'L':pickup is most inside position
48 I/O,GCK4 -LDIN I Pu Loading status singal 'L':Close operation finished
49 GND GND - - GND(0V)
50 DONE DONE O Pu FPGA(XCS05XL) control signal:DONE
51 VCC VCC - - Power supply(+3.3V)
52 -PROGRAM -PGM I Pu FPGA(XCS05XL) control signal:-PROGRAM
53 I/O(D7) -LDOUT I Pu Loading status singal 'L':Open operation finished
54 I/O,GCK5 -JOG0 I Pu Jog dial status detect signal
55 I/O(D6) -JOG1 I Pu Jog dial status detect signal
56 I/O -SHTL0 I Pu Shuttle status detect signal
57 I/O(D5) -SHTL1 I Pu Shuttle status detect signal
58 I/O -SHTL2 I Pu Shuttle status detect signal
59 I/O -SHTL3 I Pu Shuttle status detect signal
60 I/O -TRSLC I Pu Select knob status signal
61 I/O(D4) -PUSH I Pu Select button(PUSH) status signal
62 I/O AMUTE O Pu Analog Audio control signal:Mute 'H':Mute
63 VCC VCC - - Power supply(+3.3V)
64 GND GND - - GND(0V)
65 I/O(D3) DMUTE O Pu Digital Audio control signal:Mute 'H:Mute
66 I/O FSI0 O Pu X'tal(8.192MHz for FS converter unit) control signal:Enable 'L':Enable
67 I/O FSI1 O Pu X'tal(12.288MHz for FS converter unit) control signal:Enable 'L':Enable
68 I/O(D2) SEL0 O - Key matrix scan signal
69 I/O SEL1 O - Key matrix scan signal
70 I/O(D1) SEL2 O - Key matrix scan signal
71 I/O DYCON O Pu Serial Driver(HD26LS31) control signal:Enable 'H':Enable
72 I/O(D0,DIN) DIN I - FPGA(XCS05XL) control signal:DIN
73 I/O,GCK6(DOUT) I/O - - Not used. Open
74 CCLK CCLK I - FPGA(XCS05XL) control signal:CCLK
75 VCC VCC - - Power supply(+3.3V)
76 O,TDO O O - Not used. Open
77 GND GND - - GND(0V)
78 I/O -TRRST0 O Pd DIT(YM3437) and FS unit control signal:Reset 'L':Reset
79 I/O,GCK7 V/-W O Pd PLL circuit of Ext.sync.unit control signal
80 I/O(CS1) FSNOO O Pd Digital audio control signal:Data select 'L':DSP data 'H':FS unit data
81 I/O FSSEL O Pd FS unit control signal:FSSEL 'L':FS=32kHz 'H':FS=48kHz
82 I/O -FSIN I Pu FS unit status signal 'L':FS unit detected
83 I/O -SUBON O - Digital audio control signal:Subcode ON/OFF
84 I/O -SMIN I Pu Ext.sync.unit status signal 'L':Ext.sync.unit detected
85 I/O -CLKIN I Pu Ext.sync.unit status signal 'L':Video/word clock detected
86 I/O PITCH O Pd Not used. Open
87 I/O GSEL O - RF amprifier gain control signal
88 GND GND - - GND(0V)
89 VCC VCC - - Power supply(+3.3V)
90 I/O CKSEL O - Master clock(384FS) control signal 'L':Ext.sync.unit

12
DN-C680 13

Pin
Port Name Symbol I/O Ext Note
No.
91 I/O KI0 I Pu Key matrix data bus
92 I/O KI1 I Pu Key matrix data bus
93 I/O KI2 I Pu Key matrix data bus
94 I/O KI3 I Pu Key matrix data bus
95 I/O KI4 I Pu Key matrix data bus
96 I/O KI5 I Pu Key matrix data bus
97 I/O KI6 I Pu Key matrix data bus
98 I/O KI7 I Pu Key matrix data bus(Not used)
99 I/O,GCK8 I/O - - Not used. Open
100 VCC VCC - - Power supply(+3.3V)
Note: FS unit:FS converter unit(ACD25,option)
Ext.sync.unit:External video synchronizing unit(ACD27CS,Option)

13
DN-C680 14

MN19412A (MA: IC126)

MN19412A (Mecha Unit)
(IC104)
63 43

64 42

84 22

1 21

MN19412A Terminal Function
Pin No. Symbol I/O/T Function
1 N.C. -- Non connection.
2 SOEN2 I Output enable for serial output 2.
3 SCKO2 I Serial clock for serial output 2.
4 SDO3 O/T Data for serial output 3.
5 WSO3 I Word select for serial output 3.
6 SCKO3 I Serial clock for serial output 3.
7 SOEN3 I Output enable for serial output 3.
8 Vss -- GND terminal (0V).
9 Vss -- GND terminal (0V).
10 XCAS O Column address strobe for external DRAM. Open when not used.
11 XOE O Output enable for external RAM.
12 A14 O Address 14 for external RAM.
13 A13 O Address 13 for external RAM.
14 A12 O Address 12 for external RAM.
15 A11 O Address 11 for external RAM.
16 A10 O Address 10 for external RAM.
17 A9 O Address 9 for external RAM.
18 A8 O Address 8 for external RAM.
19 A7 O Address 7 for external RAM.
20 A6 O Address 6 for external RAM.
21 N.C. -- Non connection.
22 A5 O Address 5 for external RAM.
23 A4 O Address 4 for external RAM.
24 A3 O Address 3 for external RAM.
25 A2 O Address 2 for external RAM.
26 A1 O Address 1 for external RAM.
27 A0 O Address 0 for external RAM.
28 XCE2 O Chip enable 2 for external SRAM.
29 XCE1 O Chip enable 1 for external SRAM.
30 XRAS O Row address strobe for external DRAM. Open when not used.

14
DN-C680 15

Pin No. Symbol I/O/T Function
31 XWE O Write enable for external RAM.
32 VSS -- GND terminal (0V).
33 VSS -- GND terminal (0V).
34 D7 I/O Data 7 for external RAM (Connect to D4~7 when one DRAM is used).
35 D6 I/O Data 6 for external RAM.
36 D5 I/O Data 5 for external RAM.
37 D4 I/O Data 4 for external RAM.
38 D3 I/O Data 3 for external RAM.
39 D2 I/O Data 2 for external RAM.
40 D1 I/O Data 1 for external RAM.
41 D0 I/O Data 0 for external RAM.
42 P7 I/O/T General purpose port 7.
43 P6 I/O/T General purpose port 6.
44 P5 I/O/T General purpose port 5.
45 P4 I/O/T General purpose port 4.
46 P3 I/O/T General purpose port 3.
47 P2 I/O/T General purpose port 2.
48 P1/PT1 I/O/T General purpose port 1/Flag 1 for condition dividing.
49 P0/PT0 I/O/T General purpose port 0/Flag 0 for condition dividing.
50 N.C. -- Non connection.
51 SYNC I Input for program sync (condition input).
52 VDD -- Power supply terminal.
53 INT0 I Interrupt input 0.
54 INT1 I Interrupt input 1.
55 XRESET I System reset input.
56 Vss -- GND terminal (0V).
57 CLKI I System clock input.
58 CLKO O System clock output.
59 VDD -- Power supply terminal.
60 VDD -- Power supply terminal.
61 ADDR0 I Address select 0 for IIC bus.
62 ADDR1 I Address select 1 for IIC bus.
63 XCE I Chip enable for IIC bus.
64 IICSEL I IIC/IC switching for IIC bus.
65 XTRANS I Data transfer control for IIC bus.
66 SDA I/O Serial data for IIC bus.
67 SCL I/O Serial clock for IIC bus.
68 MATCH O Address match at coefficient input for IIC bus.
69 SDI1 I Data for serial input 1.
70 WSI1 I Word select for serial input 1.
71 N.C. -- Non connection.
72 SCKI1 I Serial clock for serial input 1.
73 SDI2 I Data for serial input 2.
74 WSI2 I Word select for serial input 2.
75 SCKI2 I Serial clock for serial input 2.
76 VDD -- Power supply terminal.
77 VDD -- Power supply terminal.
78 SDO1 O/T Data for serial output 1.
79 WSO1 I Word select for serial output 1.
80 N.C. -- Non connection.
81 SCKO1 I Serial clock for serial output 1.
82 SOEN1 I Output enable for serial output 1.
83 SDO2 O/T Data for serial output 2.
84 WSO2 I Word select for serial output 2.

15
DN-C680 16

MN662724 (MA: IC114)

60 41
61 40

80 21
1 20

MN662724 Terminal Function
Pin No. Symbol I/O Function
1 BCLK O Bit clock output for SRDATA.
2 LRCK O L,R discrimination signal output.
3 SRDATA O Serial data output.
4 DVDD1 Power supply for digital circuit.
5 DVSS1 GND for digital circuit.
6 TX O Digital audio interface output signal.
7 MCLK I Microcomputer command clock signal input (latches data at rising edge).
8 MDATA I Microcomputer command data input.
9 MLD I Microcomputer command load signal input. ("L": load)
10 SENSE O Sens signal output (OFT, FESL, NACEND, NAJEND, POSAD, SFG).
11 FLOCK O Focus servo draw in signal ("L": draw in state).
12 TLOCK O Tracking servo draw in signal ("L": draw in state).
13 BLKCK O Subcode block clock signal (fBLKCK=75Hz).
14 SQCK I External clock input for subcode Q register.
15 SUBQ O Subcode Q code output.
16 DMUTE I Muting input ("H": mute).
17 STAT O Status signal (CRC, CUE, CLVS, TTSTOP, FCLV, SQOK).
18 RST I Reset input ("L": reset).
19 SMCK O 8.4672MHz clock signal output at MSEL="H". 4.2336MHz clock signal output at MSEL="L".
20 PMCK O 88.2kHz clock output.
21 TRV O Traverse forcible sending output. 3-state.
22 TVD O Traverse drive output.
23 PC O Spindle motor ON signal ("L": ON).
24 ECM O Spindle motor drive signal (forcible mode output). 3-state.
25 ECS O Spindle motor drive signal (servo error signal output).
26 KICK O Kick pulse output. 3-state.
27 TRD O Tracking drive output.
28 FOD O Focus drive output.
29 VREF I Reference voltage for DA output portion (TVD,BCS,TRD,FOD,FBAL,TBAL).
30 FBAL O Focus balance adjusting output.
31 TBAL O Tracking balance adjusting output.
32 FE I Focus error signal input (analog input).
33 TE I Tracking error signal input (analog input).
34 RFENV I RF envelope signal input (analog input).
35 VDET I Vibration detecting signal input ("H": detect).

16
DN-C680 17

Pin No. Symbol I/O Function
36 OFT I Off track signal input ("H": off track).
37 TRCRS I Track cross signal input.
38 RFDET I RF detecting signal input ("L": detect).
39 BDO I Drop out signal input ("H": drop out).
40 LDON O Laser ON signal output ("H": ON).
41 PLLF2 I/O Loop filter terminal for PLL.
42 PLAY O Play signal output ("H": play).
43 WVEL O Double speed status signal output.
44 ARF I RF signal input.
45 IREF I Reference current input terminal.
46 DRF I Bias terminal for DSL.
47 DSLF I/O Loop filter terminal for DSL.
48 PLLF I/O Loop filter terminal for PLL.
49 VCOF I/O Loop filter terminal for VCO.
50 AVDD2 Power supply for analog circuit (for DSL, PLL, DA output sections).
51 AVSS2 GND for analog circuit (for DSL, PLL, DA output sections).
52 CK384 O 384 fs clock output.
53 PCK O PLL extract clock output (fPCK=4.321MHz).
54 TOFS O Tracking offset adjust signal output.
55 SUBC O Subcode serial output data output.
56 SBCK I Clock input for subcode serial output.
57 VSS GND for osc. circuit.
58 X1 I X'tal osc. circuit input terminal. f=16.9344MHz or 33.8688MHz.
59 X2 O X'tal osc. circuit output terminal.
60 VDD Power supply for osc. circuit.
61 BYTCK O Byte clock output.
62 CLDCK O Subcode frame clock signal output (fCLDCK=7.35kHz).
63 FCLK O X'tal frame clock output (fFCLK=7.35kHz).
64 IPFLAG O Interpolation flag output ("H": interpolation).
65 FLAG O Flag output.
66 CLVS O Spindle servo phase sync state signal output ("H":CLV, "L":rough servo).
67 CRC O Subcode CRC check result output ("H":OK, "L":NG).
68 DEMPH O Deemphasis detecting signal output ("H":ON).
Flag 6 output at SSEL:"H"(RAM address reset generating signal by Jitter margin over of CLV servo.
69 RESY O "L":address reset generates). RESY output at SSBL:"L"(Re-sync signal output of frame sync. "H": sync,
"L":out sync).
70 SDAT48 O 48 fs serial data output.
71 TEST I Test terminal (normally "H").
72 AVDD1 Power supply for digital circuit.
73 LRCK48 O 48 fs L, R discrimination signal output.
74 AVSS1 GND for digital circuit.
75 BCLK48 O 48 fs bit clock output for SDAT48.
76 RSEL I RF signal polarity specify terminal (RSEL="H" at brightness level "H". RSEL="L" at brightness level "L").
77 CSEL I X'tal osc. frequency specify terminal,, X'tal osc. freq. 33.8688MHz:CSEL"H", 16.9344MHz:CSEL"L".
78 PSEL I Test terminal (normally "L").
79 MSEL I SMCK terminal. Output frequency shifting terminal ("H":SMCK=8.4672MHz,"L":SMCK=4.2336MHz).
80 SSEL I Sub Q teminal. Output mode shifting terminal ("H":Q code buffer using mode).

17
DN-C680 18

M66005AFP (DK: IC502)

AN22002A (MA: IC110)

CAGC ARF CBD0 BD0 C0FTR 0FTR

RFN 11 12 13
4 5 6 7 8 14
RFOUT
RFIN

1 32

RF_EQ AGC BD0 0FTR
9
CEA
NRFDET 3TENV 10
A
+ 3TOUT
C
-
15
+

A NRFDET
32 FEN
AMP GCA BCA 22
B C
+ 31
16 17 D
- SUB -
23
+
+

B FEOUT
30
AMP GCA BCA
D TEN
29 21
F
- 27 BCA SUB -
AMP GCA 20
+

+

E TEOUT

E TEBPF
- F 28 BCA
AMP GCA 19
+

VDET
VDET
18

VREF
-
+

17 -
2
+

LD

PD
1
GCTL

TBAL

FBAL

24 26 25 16 3