Denon DN-C635 User manual

SERVICE MANUAL
STEREO CD/MP3 PLAYER
MODEL DN-C635
For U.S.A., Canada, Europe &
Korea model
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: [phone]
X0169V.02 DE/CDM 0302
Some illustrations using in this service manual are
slightly different from the actual set.
●●
本文中に使用しているイラストは、説明の都合上現物
と多少異なる場合があります。
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために、さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
●
本機の仕様は性能改良のため、予告なく変更すること
があります。
●
補修用性能部品の保有期間は、製造打切後8年です。
注 意
Ver. 2

2
2
DN-C635
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.
(1)
(2)
500V
1M
(1)
(2)

3
3
DN-C635
DISASSEMBLY
(To reassemble, reverse disassembly)
1. TOP COVER
(1) Remove 4 screws on both sides, 1 screw on the rear side, and 1 screw on the top side.
(2) Detach the Top Cover as shown in the arrow direction.
2. FRONT PANEL
(1) Remove 2 upper screws, 3 lower screws and 2 screws on the both side.
(2) Detach the Front Panel in the arrow direction.
Top cover
Front Panel

4
4
DN-C635
3. MECHANISM UNIT
(1) Remove the Loder Panel.
(2) Remove 4 screws fixing the Mechanism Unit and detach the Mechanism Unit.
Loader Panel
Mechanism Unit

5
5DN-C635
BLOCK DIAGRAM
MUTE
ST/MONO
SELECT MUTE
LED
FLT
P. U
16M DRAM
DRIVER
AN8785SB
HEAD AMP
AN22002A
CD MECH.
MOTOR
ACTUATOR
4M FLASH
ROM
KEY
±5V
±5V
±12V
REMOTE
PITCH
POWER
SUPLY
ROTALY
ENCORDER
DSP
MN662791
SYSTEM µCOM
MN102H60KDA
3.3V 5V
I/F
TC74HCT7007
SERIAL/
PARALLEL
CONVERSION
FLT
DRIVER
M66005FP
CLOCK
GEN.
CLOCK
FIX/VARI
SELECT
DAC
PCM1716E
MUTE
BUFFER
PARALLEL
SERIAL
RS232C
/422
TALLY OUT
CD OUT
H/P OUT
XLR OUT
EXT OUT
EXT IN
P. TRANS
DIGITAL
OUT
±12V
±5V
+9V
+5V
- HB
+3.3V
F1,F2

6
6DN-C635
LEVEL DIAGRAM
0dB=1Vrms
IC215
1 (7)
IC106
RCA
IC601 (602)
1
1 (7)
7
+2.9dB
0dB
+10dB
0dB
- 10dB
+20dB
+30dB

7
7DN-C635
WIRING DIAGRAM
23 22 21 20 19 18 17 16 15 14 13 12 11 10 987654321 12345
123456789
10 11 12 13 14 15 16 17 18 19 20 21 22 23 12345
(RD) 1 1
22
33
44
55
11 66
22 77
33 88
44 99
10 10
11 11
12 12
13 13
11
22
33
44
55
11
22
33
44
55
66
11
12
(BK) 22
33
12
(BK) 44
11 55
22 66
33 77
44 88
55 99
66 10 10
77 11 11
88 12 12
12 13 13
14 14
15 15
16 16
C
B
GND
CLOSE
LIMITSW-
SLED-
SLED+
LIMITSW+
SP-
VREF1
OPEN
LOAD+
H/P R
CAS IN
LOAD-
CAS OUT
EXT I/O
H/P R
CD MECH
FLDA
TRSLB-
CUEL
PRGL
H/P L
GND
KEYIN0
+3.3V
GND
LD
F-
GU-3511-4
POWER SW
UNIT
D
VCC
F
SP+
E
A
NC
F+
T+
T-
LPD
GND
FLCK
TRSLA-
PUSH-
PLYL
PTHL
KEYIN1
GND
H/P L
GND
GU-3510
MAIN UNIT
KEYIN2
FLRST-
FLCS-
GND
F1
AC
GU-3511-6
TRANS UNI
T
+3.3V
PITCH
PITCHC
GND
GU-3511-3
H/P UNIT
MUTE
REMOTE
+3.3V
GU-3511-1
DISPLAY UNIT
F2
-HB
GND
GU-3511-5 XLR UNIT
GND
GU-3511-2
SLIDE VR.
UNIT
-12V
+12V
CDOUT R
GND
CDOUT L
MUTE
CY231
CX022
CY022
CX231
CX052
CX051
CY052
CX081
CX062
CW081
CX161
CX021
CX041
CW131
CX131
CW041

8
8
DN-C635
SERVICE PROGRAM
Required Measuring Implement
zReference disc (TCD784 or CO-74176)
1. What is Service Program
Service program is a special program intended for confirming servo functions etc.
2. µcom Version Check
zRefer to "Preset Functions and Operations" of the instruction manual.
zYou can check the µcom version.
3. Error Data Check
zSwitch on the power while pushing the button and REPEAT button at the same time.
zAfter actuating the error data check program, press the CD's or button to display the logging error codes
in the occurred order.
XX Err** XX: occurred order
Err**: error code (Refer to the "Error Code Table" Page 9.)
z10 error logs are memorized at maximum. Item 1 is newest data. Item 10 is oldest data. Item 2 is the 9th old data.
zPressing the PAUSE button enters to data erase mode. ("Err Clear?" is displayed.)
If the PAUSE button is pressed again, the memorized error data are cleared.
To cancel the data erase mode, press the STOP button.
zTo stop the Error Data check mode, please turn off the POWER switch.
NOTE: When the service is finished, delete the error logs.
4. Total Running Time
zSwitch on the power while pushing the PROG. PLAY ON/OFF button and A-B button at the same time.
Total time span of CD that counted by the hour is displayed.
CD XXXXh
NOTE: Time is counted if the disc tray is opened first 30 minutes.
zPressing the PAUSE button enters to data erase mode. ("Time Clear?" is displayed.)
If the PAUSE button is pressed again, the memorized time data are cleared.
To cancel the data erase mode, press the STOP button.
zTo stop the Total Running Time check mode, please turn off the POWER switch.
NOTE: When the replacing the associated parts, delete the ranning time.
5. B.E.R. Checks and Automatic Servo Adjustment Call
zSwitch on the power while pushing the button and END MON button at the same time.
And Loading a disc by OPEN/CLOSE button.
(1)Block Error Rate
Press the PLAY button. B.E.R. is displayed.
01Tr **m XXXX XXXX: Block Error Rate
You can select the track by the select knob.
(2)Tracking balance and Focus balance data
Press the TIME button. Tracking balance and Focus balance data is displayed.
2 ±XXX±@@@ XXX: Tracking balance
@@@: Focus balance
(3)Focus gain data
Press the END MON button. Focus gain data is displayed.
3 XXXX XXXX: Focus gain
(4)Tracking gain data
Press the REPEAT button. Tracking gain data is displayed.
4 XXXX XXXX: Tracking gain
(5)Tracking offset and Focus offset data
Press the A-B button. Tracking offset and Focus offset data is displayed.
5 ±XXX±@@@ XXX: Tracking offset
@@@: Focus offset
(6)Press the PLAY MODE button to select the Block Error Rate data.
(7)To stop the B.E.R. Check and Automatic Servo Adjustment Call mode,
please turn off the POWER switch.
No. botton Adjustment Item Adjustment Value indicator
Tracking Balance -025 ~ +025
Focus Balance -050 ~ +050
3 Focus Gain 0576 ~ 2304
4 Tracking Gain 0392 ~ 1569
Tracking Offset -005 ~ +005
Focus Offset -005 ~ +005
2
5

9
9
DN-C635
6. Test Mode (Heat Run mode)
zSwitch on the power while pushing the FOLDER button and TIME button at the same time.
"000TroHR0000" is displayed. And the tray is opened.
(1)Hold the disc by the edges and place it on the disc tray.
(2)Starting with the OPEN/CLOSE button, it repeats open/close of the tray and playback.
***TrxHRXXXX ***: Track No.
x : o, c, s, t, r, and p
XXXX: Cycle quantity
All tracks are played back if the track count is less than 20.
Only the first and last tracks are played back if the tracks are more than 21.
When any errors, it stops and indicates error code (Refer to the Error Code Table).
(3)To stop the Test mode, please turn off the POWER switch.
7. Error Code Table
Error Code CONTENTS
Error 01 Unable to close the loader tray in the regulation time.
Error 02 Unable to open the loader tray in the regulation time.
Error 03 Inner circle switch ON error even if the time is over.
Error 04 Inner circle switch OFF error even if the time is over.
Error 05 The focus offset adjustment result is outside the regulation range.
Error 06 Unable to adjust the focus offset in the regulation time.
Error 07 The tracking offset adjustment result is outside the regulation range.
Error 08 Unable to adjust the tracking offset in the regulation time.
Error 09 The FE peak is outside the regulation range.
Error 0A The FE peak is outside the regulation range.
Error 0B Unable to adjust the focus rough gain in the regulation time.
Error 0C The focus rough gain is outside the regulation range.
Error 0D Unable to actuate focus in the regulation time.
Error 0E Unable to actuate tracking in the regulation time.
Error 0F Unable to adjust the tracking rough gain in the regulation time.
Error 10 The tracking rough gain is outside the regulation range.
Error 11 Unable to adjust the tracking balance in the regulation time.
Error 12 The tracking balance adjustment result is outside the regulation range.
Error 13 Focus servo down during automatic adjustment.
Error 14 Focus servo down during automatic adjustment.
Error 15 Unable to adjust the focus balance in the regulation time.
Error 16 The focus balance adjustment result is outside the regulation range.
Error 17 Track servo down during automatic adjustment.
Error 18 Unable to adjust the focus fine gain in the regulation time.
Error 19 The focus fine gain is outside the regulation range.
Error 1A Unable to adjust the tracking fine gain in the regulation time.
Error 1B The tracking fine gain is outside the regulation range.
Error 1C Unable to adjust automatically in the regulation time.
Error 1D Unable to read the subcode Q in the regulation time.
Error 1E Unable to read the TOC in the regulation time.
Error 1F Focus servo down during search (over the regulation time).
Error 20 Track servo down during search (over the regulation time).
Error 2116 Servo error during search.
Error 2103 Search error (over the regulation time).
Error 22 Discontinuity occurred, during write to the DRAM.
Error 23 The error which cannot be corrected to the read data.
Error 24 Unable to do the level detect.
Error 25 Unable to join data in the regulation time.
Error 26 The error rate when recording on the memory is over the regulation value.
Error 27 The subcode jump more than regulation.

10
10
DN-C635
µCOM VERSION UPGRADE
System µcom can be upgraded in the following manner.
Version Upgrade Method
1.Record the version upgrade software on a CD-R or CD-RW disc,
only as one file with the format ISO9660 Mode-1.
The file name of the supplied version upgrade software should be used as is and this disc needs
to finalize.
2.Hold the disc by the edges and place it on the disc tray.
3.Press the OPEN/CLOSE button to start the version upgrade.
"Version Up"→"Push Play!" "xxxx->XXXX" are displayed.
xxxx : current version
XXXX : upgrade version
4.Press the PLAY button.
"Now Writing" →"Writing-XXX" are displayed.
XXX : count up from 000 to129
5.When the version upgrade is finished, "Complete!" is indicated.
6.Turn off the power once and turn on again.
Press the OPEN/CLOSE button and remove the disc.
NOTE: When the power is turned off before "Complete!" is displayed, µcom version is not written correctly.

11
11
DN-C635
CONFIRMING THE AUDIO
1. Necessary Equipment for Adjustment
Distortion--Factor Meter
VTVM
Low-Pass Filter (20kHz)
AF Oscillator (20Hz ~ 20kHz, +18dBu)
Reference Disc; DENON Audio Technical CD (38C39-7174)
2. Output Level Adjustment
(1) Connect VTVM to the output connector of DN-C635.
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-C635 as shown in figure.
(2) Play track number "49".
(3) While reading VTVM indication, adjust VR602 (L-ch) and VR601 (R-ch) so that the output level attains +18dBu
(or desired level).
DN-C635
Line Out
Audio Transformer
1:1
600ohm
LPF
(20kHz)
Distortion Meter
Connection for Output Level Adjustment
R
VR601
Location of Level Adjustment VRs
L
VR602

12
12
DN-C635
SEMICONDUCTORS
IC’s
MN102H60KDA
(IC103)
MN102H60KDA Terminal Function
Pin
No. Pin Name Symbol I/O Det Ext Res Ini Function
1 P60, WAIT, SBT2 PCDMUTE O - Pd L L Mute for CD
2 P61, _RE RD- O - Pu Hi-Z - Read signal
3 P62, _WEL WR- O - Pu Hi-Z - Write signal
4 P63, _WE, _WEH EXTIN- I - - Hi-Z - EXT.IN signal
5 _CS0,TM13OA FLASHROMCS- O - - Hi-Z - Chip select signal (MASK ROM operation : Input port)
6 _CS1, TM13OB PARALLELIN- O - - Hi-Z - Chip select signal (IN/OUT)
7 _CS2, TM14OA FLASHROMCS- I - - Hi-Z - Chip select signal (Normal operation : Input port, MASK ROM
operation : F. ROM Chip select)
8 _CS3, TM14OB -- O - - Hi-Z - Not used.
9 P54, _BREQ EXTOUT- O - - Hi-Z H EXT.OUT signal
10 P55, _BRACK RMTOUT- O - - Hi-Z H Remote output signal
11 P56, ALE, _ALE,
_BSTRE, TM15IA
MON2 I - - Hi-Z - Monitor signal 2
12 P57,_WORD WORD- I - H H H Data bit bus width select 'H': 8bit
13 P20,A00,SBT2 A00 A/O - - Unfix - Address bus
14 P21,A01,SBI2 A01 A/O - - Unfix - Address bus
15 P22,A02,SBO2 A02 A/O - - Unfix - Address bus
16 P23,A03 A03 A/O - - Unfix - Address bus
17 Vdd Vdd - - - - - Power supply (+3.3V)
18 BOSC,BIBT1,
BIBT2,PB0
IRINH O - - Hi-Z L Infrared remote 'L': Enable / 'H': Inhibit
19 Vss Vss - - - - - GND(0V)
20 XI,PB1 MCE O - Pd Hi-Z L Chip select 'L': MN662791 / 'H': BU2618
21 XO -- - - - - - Not used. OPEN
22 Vdd Vdd - - - - - Power supply (+3.3V)
23 OSCI OSCI I - - - -
24 OSCO OSCO O - - - - OSCI output
25 MODE MODE I - L L L Mode select 'L': Processor mode
26 P24,A04,TM15IA A04 A/O - - Unfix - Address bus
27 P25,A05 A05 A/O - - Unfix - Address bus
28 P26,A06 A06 A/O - - Unfix - Address bus
75
76
100
125
26
50
51

13
13
DN-C635
29 P27,A07 A07 A/O - - Unfix - Address bus
30 P30,A08,_KI0 A08 A/O - - Unfix - Address bus
31 P31,A09,_KI1 A09 A/O - - Unfix - Address bus
32 P32,A10,_KI2 A10 A/O - - Unfix - Address bus
33 P33,A11,_KI3 A11 A/O - - Unfix - Address bus
34 AVDD AVDD - - - - - Analog power supply terminal
35 P34,A12,_KI4 A12 A/O - - Unfix - Address bus
36 P35,A13,_KI5 A13 A/O - - Unfix - Address bus
37 P36,A14,_KI6 A14 A/O - - Unfix - Address bus
38 P37,A15,_KI7 A15 A/O - - Unfix - Address bus
39 P40,A16 A16 A/O - - Unfix - Address bus
40 P41,A17 A17 A/O - - Unfix - Address bus
41 P42,A18 A18 A/O - - Unfix - Address bus
42 P43,A19 -- A/O - - Unfix - Address bus
43 Vref- Vref- - - - - - Standard analog power supply
44 P44,AN4,A20 KEYIN1 I Lv Pu Unfix - Panel key 1 (Use A/D converter)
45 P45,AN5,A21 KEYIN2 I Lv Pu Unfix - Panel key 2 (Use A/D converter)
46 P46,AN6,STOP,
A22
KEYIN3 I Lv Pu Unfix - Panel key 3 (Use A/D converter)
47 P47,AN7,WDOUT,
A23
SDA O - - Hi-Z L Serial data for BU2090
48 P80,TM14OA TRSLA- I - Pu Hi-Z - Rotary switch A signal
49 P81,TM14OB TRSLB- I - Pu Hi-Z - Rotary switch B signal
50 P82,TM0IO,SBI2,
SBT3,SCL3
MON1 I - - Hi-Z - Monitor signal 1
51 P83,TM4IO,SBI3 RxD I - - Hi-Z - Serial port (9600bps)
52 P84,TM7IO,SBO3,
SDA3
TxD O - - Hi-Z H Serial port (9600bps)
53 P85,TM9IOA,
SBO2,SBT4,SCL4
FLCLK O - - Hi-Z H To FL driver SCK
54 Vref+ Vref+ - - - - - Standard analog power supply
55 P86,TM9IOB,SBI4 FLCS- O - - Hi-Z H To FL driver CS
56 P87,TM9IC,SBO4,
SDA4
FLSD O - - Hi-Z H To FL driver SDATA
57 P90,TM8IOA,
BIBT1,_DMAREQ1
LEDCK O - - Hi-Z L Clock for BU2090
58 P91,TM10IOA,
BIBT2,_DMAACK1
PUSH- I - Pu H - Not used.
59 P92,TM10IOB,
_DMAREQ0
LRCK I Ed - Hi-Z - LRCK : Use for time code creation during MP3 playback.
60 P93,TM10IC,
_DMAACK0
NRST O - Pd L L Round IC reset signal
61 Vss Vss - - - - - GND (0V)
62 P94,AN0 -- I Lv Pd L - Not used.
63 P95,AN1 -- I Lv Pd L - Not used.
64 P96,AN2 PITCHC I Lv - Hi-Z - Use A/D converter
65 P97,AN3 PITCH I Lv - Hi-Z - Use A/D converter
66 Vdd Vdd - - - - - Power supply(+3.3V)
67 P70,SBT0,_RAS MCLK O - - Hi-Z H DSP interface Clock (clock synchronous formula)
68 P71,SBI0,_CAS,
_LCAS
STAT I - - Hi-Z - DSP interface Reception (clock synchronous formula)
69 P72,SBO0,_UCAS MDAT O - - Hi-Z H DSP interface Transmission (clock synchronous formula)
70 P73,SBT1,DUMX TXTCLK O - - Hi-Z H Use during CD-TEXT data read (clock synchronous formula)
71 P74,SBI1 PTXTD I - - Hi-Z - Use during CD-TEXT data read (clock synchronous formula)
Pin
No. Pin Name Symbol I/O Det Ext Res Ini Function

14
14
DN-C635
72 P75,SBO1 MLD O - - Hi-Z H DSP interface latch
73 TEST1 TEST1 I - Pu - - Pull up 33 - 50K
74 TEST2 TEST2 I - Pu - - Pull up 33 - 50K
75 _NMI -- I Lv Pu Hi-Z - Not used.
76 PA0,_IRQ0 BLKCK I Ed - Hi-Z - Sub code clock interruption
77 PA1,_IRQ1 DQSY I Ed - Hi-Z - CD-TEXT DQSY Interruption
78 PA2,_IRQ2 FADER ST I Ed - Hi-Z - Fader signal
79 PA3,_IRQ3 REMOTE- I Ed - Hi-Z - RC-5/Infrared remote signal input
80 PA4,_IRQ4,TM15IB CHGOFT O - Pu H L Off track signal
81 PA5,ADSEP ADSEP I - H H H H': Address data separation mode / 'L': Address data common mode
82 _RST RST- I Lv Pu L - Reset signal 'L': RESET
83 Vdd Vdd - - - - - Power supply (+3.3V)
84 P00,D00,AD00 D00 D/O - - Hi-Z - Data bus
85 P01,D01,AD01 D01 D/O - - Hi-Z - Data bus
86 P02,D02,AD02 D02 D/O - - Hi-Z - Data bus
87 P03,D03,AD03 D03 D/O - - Hi-Z - Data bus
88 P04,D04,AD04 D04 D/O - - Hi-Z - Data bus
89 P05,D05,AD05 D05 D/O - - Hi-Z - Data bus
90 P06,D06,AD06 D06 D/O - - Hi-Z - Data bus
91 P07,D07,AD07 D07 D/O - - Hi-Z - Data bus
92 Vss Vss - - - - - GND (0V)
93 P010,D08,AD08,
TM8IOB
ST_MONO O - Pu H H Output mode STEREO/MONO=1/0
94 P011,D09,AD09,
TM8IC
FIX_VAR1 O - Pu H H VCO MORMAL/PITCH=0/1
95 P012,D10,AD10,
TM11IOA
DEBAG1 O - - - - Terminal 1 for debag
96 P013,D11,AD11,
TM11IOB
OPEN I - - Hi-Z - OPEN switch
97 P014,D12,AD12,
TM11IC
CLOSE I - - Hi-Z - CLOSE switch
98 P015,D13,AD13,
TM12IOA
LOAD O - - Hi-Z H OPEN/CLOSE signal (PWM out put) (During Pnrst='L', out put
PWM(50%))
99 P016,D14,AD14,
TM12IOB
DEBAG1 O - - - H Terminal 2 for debag
100 P017,D15,AD15,
TM12IC
LIMITSW- I O - Hi-Z - Inner circle SW
Pin
No. Pin Name Symbol I/O Det Ext Res Ini Function

15
15
DN-C635
MN6627911AC
(IC210)
MN6627911AC Terminal Function
Pin No. Pin Name I/O Function
1 DRVDD I Power supply for DRAM interface (Pin No.2 - 18, 80)
2 D0 I/O Data I/O signal 0 for DRAM
3 D1 I/O Data I/O signal 1 for DRAM
4 WE O Write enable signal for DRAM
5 RAS O RAS control signal for DRAM
6 D2 I/O Data I/O signal 2 for DRAM
7 D3 I/O Data I/O signal 3 for DRAM
8 CAS O CAS control signal 0 for DRAM
9 A10 O Address signal 10 for DRAM
10 A8 O Address signal 8 for DRAM
11 A7 O Address signal 7 for DRAM
12 A6 O Address signal 6 for DRAM
13 A5 O Address signal 5 for DRAM
14 A4 O Address signal 4 for DRAM
15 A9 O Address signal 9 for DRAM
16 A0 O Address signal 0 for DRAM
17 A1 O Address signal 1 for DRAM
18 A2 O Address signal 2 for DRAM
19 A3 O Address signal 3 for DRAM
20 DVSS2 I GND for digital
21 DVDD2 I Power supply for digital
22 SPOUT O Spindle motor drive signal
23 TRVP O Traverse drive signal
24 TRVM O Not used
25 TRP O Tracking drive
26 GCNTL O Gain control signal for CD-RW
27 FOP O Focus drive
28 CHGICO O EQ select signal
29 IOVDD1 I Power supply for IO
30 TBAL O Tracking balance adjust
31 FBAL O Focus balance adjust
32 FE I Focus error signal (Analog input)
33 TE I Tracking error signal (Analog input)
34 RFENV I RF envelope signal (Analog input)
35 OFT I Off track signal H : OFF TRACK
36 NRFDET I RF detect signal H : DETECT
60
61
80
120
21
40
41

16
16
DN-C635
37 BDO I Drop out signal H : DROP OUT
38 LDON O Laser ON signal H : ON
39 ARF I RF signal
40 IREF I Standard current input terminal
41 ADPVCC I Voltage for power supply monitor
42 DSLF O Loop filter for DSL
43 RFSW I Loop filter for DSL
44 PLLF O Loop filter for PLL
45 PLLFO O Loop filter for PLL
46 AVDD2 I Power supply for analog (DSL, PLL, AD)
47 AVSS2 I GND for analog (DSL, PLL, AD)
48 OUTL O Not used
49 AVSS1 I GND for analog (Audio output)
50 OUTR O Not used
51 AVDD1 I Power supply for analog (Audio output)
52 DVSS3 I GND for digital
53 DVDD3 I Power supply for digital
54 TMOD2 I Test terminal L : Normal
55 MON2 O Serial monitor signal 2
56 BCLK O Bit clock for serial data
57 SRDATA O Serial data signal
58 LRCK O L, R discernment signal
59 IOVDD2 I Power supply for IO
60 TX O Digital audio interface signal
61 MCLK I ucon command clock signal
62 MDATA I ucon command data signal
63 MLD I ucon command load signal L : LOAD
64 BLKCK O Sub code block clock signal (f=75Hz : Normal speed playback)
65 PWMSEL I PWM output mode select L : Direct H : 3 values
66 SMCK O Not used
67 SBCK I Not used
68 STAT O Status signal
69 NRST I Reset L : RESET
70 SPPOL O Not used
71 PMCK O Not used
72 DQSY O Pack signal for CD TEXT data
73 TXTD O CD TEXT data signal
74 TXTCK O Ext. clock signal input for CD TEXT resister
75 NTEST I Test terminal H : Normal
76 X2 O Not used
77 X1 I 16.9344MHz input terminal
78 DVSS1 I GND for digital
79 DVDD1 I Power supply for digital
80 MON1 O Serial monitor signal
Pin No. Pin Name I/O Function

17
17
DN-C635
AN8785SB
(IC202)
AN22002A
(IC201)
-+
-+
-+
-+
-+-+
-+-+-+-+
-+
-+-+-+-+-+-+
0.1µ
IN2-
IN2+
IN4 IN3 IN5 SVcc SGnd-Fin
IN1
(2.5V) H:2.5V
L or
HIZ :Vref
ch.4 SW
switch
PGnd2 PGnd1
16
M
1.25V
12 11 18 10 17 14 13 19 128 26 25 24
3
5
4
23 27 222
6
9821 15 20
7
MM
IN-
IN+
OUT
Vref
Protection
Circuit
Standby PVcc2
L: All mute
Hiz: ch2,4 ON
H: Active
[ Loading ] [ Traverse ]
[ Others ]
[ Spindle ] [ Focus ] [ Tracking ]
PVcc3 PVcc1
D2- D2+ D4- D4+ D1- D1+ D5- D5+
D3- D3+
Standby
Band-gap
Vcc/Vref
Reser Circuit
1
7
8
14 15
21
22
28
E
45
32
31
30
29
27
28
17
67811 12 13 14
9
10
15
22
23
21
20
19
18
2
1
3
16
25
26
24
RF_EQ
NRFDET
RFOUT
RFN
CAGC ARF CBD0 BD0 C0FTR 0FTR
AGC BD0 0FTR
CEA
3TOUT
NRFDET
FEN
TEN
TEBPF
VDET
TEOUT
FEOUT
3TENV
RFIN
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
AMP GCA BCA
SUB
SUB
VDET
AMP GCA BCA
AMP GCA
AMP GCA
BCA
BCA
A
C
B
D
F
B
+
D
A
+
C
F
E
VREF
VCCGND
FBAL
TBAL
GCTL
LD
PD
1
16
32
17

18
18
DN-C635
PCM 1716E (IC211)
BU2618FV (IC214)
PIN NAME I/O DESCRIPTION
1 LRCIN IN Left and Right Clock Input. This clock is equal to
the sampling rate - fS.(1)
2 DIN IN Serial Audio Data Input(1)
3 BCKIN IN Bit Clock Input for Serial Audio Data.(1)
4 CLKO OUT Buffered Output of Oscillator. Equivalent to
System Clock.
5 XTI IN Oscillator Input (External Clock Input)
6 XTO OUT Oscillator Output
7 DGND - Digital Ground
8V
DD
- Digital Power +5V
9V
CC2R
- Analog Power +5V
10 AGND2R
- Analog Ground
11 EXTR OUT Rch, Common Pin of Analog Output Amp
12 NC
- No Connection
13 VOUTR OUT Rch, Analog Voltage Output of Audio Signal
14 AGND1
- Analog Ground
15 VCC1
- Analog Power +5V
16 VOUTL OUT Lch, Analog Voltage Output of Audio Signal
17 NC
- No Connection
18 EXTL OUT Lch, Common Pin of Analog Output Amp
19 AGND2L
- Analog Ground
20 VCC2L
- Analog Power +5V
21 ZERO OUT Zero Data Flag
22 RST IN Reset. When this pin is low, the DF and
modulators are held in reset.(2)
23 CS/IWO IN Chip Select/Input Format Selection. When this
pin is low, the Mode Control is effective.(3)
24 MODE IN Mode Control Select. (H: Software, L: Hardware)
(2)
25 MUTE IN Mute Control
26 MD/DM0 IN Mode Control, DATA/De-emphasis Selection 1(2)
27 MC/DM1 IN Mode Control, BCK/De-emphasis Selection 2(2)
28 ML/I2S IN Mode Control, WDCK/Input Format Selection(2)
NOTES: (1) Pins 1, 2, 3; Schmitt Trigger input. (2) Pins 22, 24, 25, 26, 27,
28; Schmitt Trigger input with pull-up resister. (3) Pin 23; Schmitt Trigger
input with pull-down resister.
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
V
DD
V
CC
2R
AGND2R
EXTR
NC
V
OUT
R
AGND1
ML/IIS
MC/DM1
MD/DM0
MUTE
MODE
CS/IWO
RST
ZERO
V
CC
2L
AGND2L
EXTL
NC
V
OUT
L
V
CC
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15

19
19
DN-C635
M66005FP (IC504)
RESET Reset Input
CS Chip Select Input
SCK Shift Clock Input
SDATA Serial Data Input
X
IN Clock Input
X
OUT Clock Output
DIG 00~ Digit Output
DIG 15
SEG 00~ Segment Output
SEG 35
P0, P1
V CC1
V CC2
Vss
Vp
Symbol Name Function
(Forwarding connection of segment output terminal.)
M66005FP Terminal Function
Initialzes internal state of M66005.
Able to communicate with MCU in "L" mode.
Command from MCU will be disregareded in "H" mode.
Shifts input data at rise from "L" to "H".
Inputs character code or command data needed to display from MSB.
Sets oscillation frquency by connecting external resistor and capacitor (maximum
oscillation frequency fosc (max)=1MHz). Also feasible to apply external clock. In this case,
inject external clock to Xin terminal and open Xout terminal.
Connect to digit terminal of VFD. DIG00~DIG15 correspond to the 1st figure to 16th figure
respectively.
Connect to segment terminal of VFD. For corresponding SEG00~SEG35 to segment
terminal of VFD, refer to the figure right.
Output port (static operation).
Positive power supply terminal for internal logic.
Positive power supply terminal for high tension output port.
GND terminal.
Negative power supply terminal for VFD drive.
in the right figure indicates 1 dot of segment, the figure in shows the segment output
terminal number (00~35) to be connected.
2 1
1 4
1 6
1 5
2 0
1 3
1 8
1 7
5 9
3 3
3 1
2 3
6 4
1 2
1
6 1
D i s p l a y C o n t r o l
R e g i s t e r
C h i p S e l e c t I n p u t
S h i t C l o c k I n p u t
S e r i a l D a t a I n p u t
C S
S C K
S D A T A
D i s p l a y C o d e R e g i s t e r
( 8 - b i t x 1 6 )
S e r i a l
R e c e p t i o n
C i r c u i t
c o d e
w r i t e
C o d e /
C o m m a n d
C o n t r o l C i r c u i t
R A M
w r i t e
D e c o d e rD e c o d e r
C G R O M
( 3 5 - b i t x 1 6 0 )
C G R O M
( 3 5 - b i t x 1 6 )
S e g m e n t
O u t p u t
C i r c u i t
S E G
S E G
S E G
S E G
0 0
2 6
2 7
3 5
S e g m e n t
O u t p u t
O u t p u t P o r t
( 2 - b i t )
P 0
P 1 O u t p u t P o r t
R e s e t I n p u t R E S E T
C l o c k I n p u t X I N
C l o c k O u t p u t X O U T
C l o c k
G e n e r a t i o n
C i r c u i t
c o d e s e l e c t
D i s p l a y C o n t r o l l e r
D i g i t O u t p u t
C i r c u i t
D I G
D I G
D I G
D I G
0 0
1 1
1 2
1 5
D i g i t O u t p u t
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 0
3 1
3 2
6 4
6 3
6 2
6 1
6 0
5 9
5 8
5 7
5 6
5 5
5 4
5 3
5 2
5 1
5 0
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
D I G
1 1
D I G
1 0
D I G
0 9
D I G
0 8
D I G
0 7
D I G
0 6
D I G
0 5
D I G
0 4
D I G
0 3
D I G
0 2
D I G
0 1
D I G
0 0
R E S E T
C S
S C K
S D A T A
P I
P O
V c c 1
X
o u t
X
i n
V s s
S E G
3 5
S E G
3 4
S E G
3 3
S E G
3 2
S E G
3 1
S E G
3 0
S E G
2 9
S E G
2 8
S E G
2 7
V p S E G
2 6
S E G
2 5
S E G
2 4
S E G
2 3
S E G
2 2
S E G
2 1
S E G
2 0
S E G
1 9
S E G
1 8
S E G
1 7
S E G
1 6
S E G
1 5
S E G
1 4
S E G
1 3
S E G
1 2
S E G
1 1
S E G
1 0
S E G
0 9
S E G
0 8
S E G
0 7
S E G
0 6
S E G
0 5
S E G
0 4
S E G
0 3
S E G
0 2
S E G
0 1
S E G
0 0
V c c 2
D I G
1 5
D I G
1 4
D I G
1 3
D I G
1 2
00 01 02 03 04
05 06 07 08 09
10 11 12 13 14
15 16 17 18 19
20 21 22 23 24
25 26 27 28 29
30 31 32 33 34
35

20
20
DN-C635
TC9246F (IC217)
16
1
15
2
14
3
13
4
12
5
11
6
10
7
9
8
REF
VAR
Lock Ditection
Circuit Microcomputer Interface
VCO Selector
Phase
Comparator
Programmable Counter
VDD LOCK S2 S1 M2 M1 CKO Vss
REF
AMPI
AMPO
XI
XO
PD
VDDA
VSSA
AN80L18RMS (IC208)
5
4
3
SW
GND
NC
1
2
IN
OUT
BU2090F (IC104)
16 VDD1Vss
15 Q112DATA
14 Q103CLOCK
13 Q94Q0
12 Q85Q1
11 Q76Q2
10 Q6
Q5
7Q3
9
8Q4
Control Circuit
12-Bit Shift Register
Latch
Output Buffer
(Open Drain)
TOP
VIEW
E
B
C
B
C
E
R1
R2
DTA114EK
R1
10kohm
R2
DTC Series
10kohm
DTA144EK 47kohm
DTA Series
B
C
E
R1
R2
47kohm
1 TRANSISTORS
DTA114EK
DTA144EK
DTC114EK
DTC114YK
DTC114EK
R1
10kohm
R2
10kohm
DTC114YK 10kohm 47kohm
DTA144ES 47kohm 47kohm
FRONT
VIEW
B
C
E
DTA144ES
PNP
NPN
PNP
GP1UE261XK (Remote Control Sensor)
(IC501)
GND Vcc VOUT
Head
Amp BPF Integrator
TOP VIEW
VOUT
Vcc
GND
Limiter
Amp
Detector &
Comparator
Hysteresis
Comparator
1 OTHERS