This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-994-327-3T3).
BASIC TAPE MECHANISM : TN-21ZVC-1812
BASIC CD MECHANISM : DA-11T3C
S/M Code No. 09-994-327-3R3
REVISION
DATA
SPECIFICATIONS
HR, HC MODELS
Design and specifications are subject to change without
•
notice
.
U2 MODEL
Design and specifications are subject to change without
•
notice
.
2
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT
WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO
CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE
FROM A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL
PICK-UP BLOCK.
Caution: Invisible laser radiation when
open and interlocks defeated avoid exposure to beam.
Advarsel:Usynling laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyt-täjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som specificeras i
denna bruksanvising, kan användaren utsättas för osynling
laserstrålning, som överskrider gränsen för laserklass 1.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
ATTENTION
L'utilisation de commandes, réglages ou procédures autres que
ceux spécifiés peut entraîner une dangereuse exposition aux
radiations.
ADVARSEL!
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer ude
af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located on the rear
exterior.
CLASS 1
KLASSE 1
LUOKAN 1
KLASS 1
LASER PRODUCT
LASER PRODUKT
LASER LAITE
LASER APPARAT
3
DISASSEMBLY INSTRUCTIONS
1.Remove the screws 1 (V+3-10 GLD*2), 2 (UT2+3-6*5) from the rear cabinet.
2.While pressing down the Q sound button, remove the rear cabinet .
Open the hanger wide to the right and left, and remove it.
1
2
3.Remove the screws 3 (V+3-10 GLD*4).
3
4
4.Put the part of front cabinet shown by the arrow away from the H.P jack
5.Remove the CD block, the main board, and others from the front cabinet.
C901 87-A11-132-080 CAP,TC U 0.01-50 K B
C902 87-A11-132-080 CAP,TC U 0.01-50 K B
C903 87-A11-132-080 CAP,TC U 0.01-50 K B
C904 87-A11-132-080 CAP,TC U 0.01-50 K B
CN910 87-049-919-010 CONN,3P EH V WHT
!
F901 87-A90-092-080 PROTECTOR,2.5A 491<HR,HC>
NO.
8
• Regarding connectors, they are not stocked as they are not the initial order items.
The connectors are available after they are supplied from connector manufacturers upon the order is received.
8. Azimuth Adjustment
Condition: • Test tape: TTA-320
• Test point: PHONES JACK
• Adjustment location:Azimuth adjustment
screw
Method:Play back the test tape and adjust so that the
output is maximum.
27
PRACTICAL SERVICE FIGURE
< FM SECTION >
IHF Sensitivity:Less than 20dB
(THD 3%)
Signal to noise ratio:More than 55dB
(Input 54dB)(at 98.0MHz)
Distortion:Less than 2.0% (at 98.0MHz)
(Input 54dB)Less than 5.0% (at 98.0MHz)
Stereo separation:More than 18dB (at 98.0MHz)
Intermediate frequency:10.7±0.1MHz
< AM SECTION >
Sensitivity:
(S/N 10dB)Less than 45dB
Signal to noise ratio:More than 34dB
(Input 74dB)
Distortion:Less than 1.5%
(Input 74dB)(at 1000kHz)
Intermediate frequency:455kHz
< DECK SECTION >
Tape speed:3000Hz±2%
Distortion:Less than 2.0% (PB)
Less than 2.5% (REC)
Signal to noise ratio:More than 44dB (AC)
More than 50dB (DC)
Erasing ratio:More than 45dB
28
IC DESCRIPTION
IC, LC865508A
Pin No.Pin NameI/ODescription
1
2
3
O-SEG E
______________
O-SEG F
_______________
O-SEG G
O
O
O
SEG E control.
SEG F control.
SEG G control.
10
11
12
13
14
15
16
17
18
19
20
21
22
4
5
6
7
8
9
—
I-RST
XT1 (IN)
NC
XT2 (OUT)
VSS
CF1 (IN)
CF2 (OUT)
VDD
I-KEY0
I-KEY1
I-DECK
____________
I-CD SW
O-CLK SFT
NC
O-BASS LED
O-Qsound LED
O-SFT LED
I-DRF
—
—
—
—
—
Not used.
I
Microprocessor reset input.
I
Connected to an external 32.768 kHz crystal oscillator.
Not used.
O
Connected to an external 32.768 kHz crystal oscillator.
GND.
I
Connected to an external 5.76 MHz ceramic filter.
O
Connected to an external 5.76 MHz ceramic filter.
Microprocessor power supply (+5 V).
Pin to which external pickup photo diode is connected. RF signal is created by adding
I
with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal.
I
Pin to which external pickup photo diode is connected.
10
11
12
13
14
15
16
17
3
4
5
6
7
8
9
E
F
TB
TE–
TE
TESI
SCI
TH
TA
TD–
TD
JP
TO
FD
FD–
Pin to which external pickup photo diode is connected. TE signal is created by
I
subtracting from the F pin signal.
I
Pin to which external pickup photo diode is connected.
I
DC component of the TE signal is input.
I
Pin to which external resistor setting the TE signal gain is connected between the TE pin.
O
TE signal output pin.
TES “Track Error Sense” comparator input pin. TE signal is passed through a band-
I
pass filter then input.
I
Shock detection signal input pin.
I
Tracking gain time constant setting pin.
O
TA amplifier output pin.
Pin to which external tracking phase compensation constants are connected between
I
the TD and VR pins.
I
Tracking phase compensation setting pin.
I
Tracking jump signal (kick pulse) amplitude setting pin.
O
Tracking control signal output pin.
O
Focusing control signal output pin.
Pin to which external focusing phase compensation constants are connected between
I
the FD and FA pins.
18
19
20
21
22
23
24
25
26
27
28
29
30, 31
32, 33
34
FA
FA–
FE
FE–
AGND
NC
SP
SPG
SP–
SPD
SLEQ
SLD
SL–, SL+
JP–, JP+
TGL
—
—
Pin to which external focusing phase compensation constants are connected between
I
the FD– and FA– pins.
Pin to which external focusing phase compensation constants are connected between
I
the FA and FE pins.
O
FE signal output pin.
I
Pin to which external FE signal gain setting resistor is connected between the FE pin.
Analog signal GND.
No connection.
O
Single ended output of the CV+ and CV– pin input signal.
I
Pin to which external spindle gain setting resistor in 12 cm mode is connected.
Pin to which external spindle phase compensation constants are connected together
I
with SPD pin.
O
Spindle control signal output pin.
I
Pin to which external sled phase compensation constants are connected.
O
Sled control signal output pin.
I
Sled advance signal input pin from microprocessor.
I
Tracking jump signal input pin from DSP.
I
Tracking gain control signal input from DSP. Low gain when TGL = H.
35
TOFF
I
Tracking off control signal input pin from DSP. Off when TOFF = H.
31
Pin No.Pin NameI/ODescription
36
TES
O
Pin from which TES signal is output to DSP.
37
38
39, 40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
HFL
SLOF
CV–, CV+
RFSM
RFS–
SLC
SLI
DGND
FSC
TBC
NC
DEF
CLK
CL
DAT
CE
DRF
FSS
—
—
“High Frequency Level” is used to judge whether the main beam position is on top of
O
bit or on top of mirror.
I
Sled servo off control input pin.
I
CLV error signal input pin from DSP.
O
RF output pin.
RF gain setting and EFM signal 3T compensation constant setting pin together with
I
RFSM pin.
“Slice Level Control” is the output pin which controls the RF signal data slice level by
O
DSP.
I
Input pin which control the data slice level by the DSP.
Digital system GND.
O
Output pin to which external focus search smoothing capacitor is connected.
I
“Tracking Balance Control” EF balance variable range setting pin.
No connection.
O
Disc defect detector output pin.
I
Reference clock input pin. 4.23 MHz of the DSP is input.
Servo system and digital system Vcc pin.
Pin to which external bypass capacitor for reference voltage is connected.
O
Reference voltage output pin.
I
Disc defect detector time constant setting pin.
I
Pin to which external capacitor for RF signal peak holding is connected.
I
Pin to which external capacitor for RF signal bottom holding is connected.
O
APC circuit output pin.
I
APC circuit input pin.
RF system Vcc pin.
32
IC, LC78622ED
Pin No.Pin NameI/ODescription
1
2
3
4
DEFI
TAI
PDO
VVSS
I
Defect sense signal (DEF) input pin. (Connect to 0V when not used).
I
O
—
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
Phase comparator output pin to control external VCO.
GND pin for built-in VCO. Be sure to connect to 0V.
For PLL.
5
6
7
8
9
ISET
VVDD
FR
VSS
EFMO
I
—
I
—
Digital system GND. Be sure to connect to 0V.
O
Pin to which external resistor adjusting the PD0 output current.
Power supply pin for built-in VCO.
Pin for VCO frequency range adjustment.
EFM signal output pin.
For slice level control.
10
11
12, 13
14
EFMIN
TEST2
CLV+, CLV–
___
V/P
I
I
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
O
Disc motor control output. Three level output is possible using command.
Rough servo or phase control automatic selection monitoring output pin. Rough servo
O
EFM signal input pin.
at H. Phase servo at L.
15
16
17
18
19, 20
21
22
HFL
TES
TOFF
TGL
JP+, JP–
PCK
FSEQ
I
Track detect signal input pin. Schmidt input.
I
Tracking error signal input pin. Schmidt input.
O
Tracking OFF output pin.
O
Tracking gain selection output pin. Gain boost at L.
O
Track jump control signal output pin. Three level output is possible using command.
O
EFM data playback clock monitoring pin 4.3218 MHz when phase is locked in.
Sync signal detection output pin. H when the sync signal which is detected from EFM
O
signal and thesync signal which is internally generated agree.
23
VDD
—
Digital system power supply pin.
The pin is controlled by the serial data
command from microprocessor. When
24-28
SL+ - PUIN
I/O
General purpose input/output pin 1 to 5.
the pin is not used, set the pin to the input
terminal and connect to 0V, or alternately
set the pin to output terminal and leave
the pin open.
29
EMPH
O
De-emphasis monitor output pin. De-emphasis disc is being played back at H.
Pin No.Pin NameI/ODescription
43
44
45
46
47
48
49
50
XVDD
XOUT
XIN
XVSS
SBSY
EFLG
PW
SFSY
—
Crystal oscillator power supply pin.
O
Pin to which external 16.9344 MHz crystal oscillator is connected.
I
—
Crystal oscillator GND pin. Be sure to connect to 0V.
O
Subcode block sync signal output pin.
O
C1, C2, single and dual correction monitoring pin.
O
Subcode P, Q, R, S, T, U and W output pin.
O
Subcode frame sync signal output pin. Falls down when subcode enters standby.
Subcode read clock input pin. Schmidt input. (Be sure to connected to 0V when not
51
SBCK
I
in use.)
52
FSX
Pin outputting the 7.35 kHz sync signal which is generated by dividing frequency of
O
crystal oscillator.
53
54
55
56
57
58
59
60
61
62
63
WRQ
RWC
SQOUT
COIN
___________
CQCK
________
RES
TST11
16M
4.2M
TEST5
______
CS
O
Subcode Q output standby output pin.
I
Read/write control input pin. Schmidt input.
O
Subcode Q output pin.
I
Command input pin from microprocessor.
I
Command input read clock or subcode read input clock from SQOUT pin
I
LC78622 reset input pin. Set this pin to L once when the main power is turned on.
O
Test signal output pin. Use this pin as open (normally L output).
O
16.9344 MHz output pin.
O
4.2336 MHz output pin.
I
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
Chip select signal input pin with built-in pull-down resistor. Be sure to connect to 0V
I
while it is not controlling.
64
TEST1
I
Test signal input pin without built-in pull-down resistor. Be sure to connect to 0V.
Note: The same potential must be applied to the respective power supply terminals. (VDD, VVDD, LVDD, RVDD, XVDD)
30
31
32, 33
34
35
36
37
38
39
40
41
42
C2F
DOUT
TEST3, TEST4
N.C.
MUTEL
LVDD
LCHO
LVSS
RVSS
RCHO
RVDD
MUTER
O
C2 flag output pin.
O
DIGITAL OUT output pin. (EIAJ format).
I
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
—
Not used. Set the pin to open.
O
—
L-channel 1-bit DAC.
O
—
—
O
L-channel mute output pin.
L-channel power supply pin.
L-channel output pin.
L-channel GND. Be sure to connect to 0V.
R-channel GND. Be sure to connect to 0V.
R-channel output pin.
R-channel 1-bit DAC.
—
O
R-channel power supply pin.
R-channel mute output pin.
70 8Z-CDB-227-010 HLDR,PT
A 87-261-096-410 SCREW,V+3-10 GLD
B 87-751-034-410 SCREW VT2+2-5
C 87-745-094-410 UT2+3-6
D 87-651-035-410 VT1 2-6 GLD
E 87-661-096-410 SCREW,VFT1+3-10
F 87-741-096-410 UT2+3-10
G 87-741-074-410 UT2+2.6-8
REF. NOPART NO.KANRIDESCRIPTION
NO.
42 87-A90-146-010 SW,SL 1-1-2<HR,HC>
44 87-A60-178-010 JACK,AC E W/SW<HR,HC>
44 87-A60-177-010 JACK,AC U W/SW<U>
COLOR NAME TABLE
Basic color symbolColorBasic color symbolColorBasic color symbolColor
BBlackCCreamDOrange
GGreenHGrayLBlue
LTTransparent BlueNGoldPPink
RRedSSilverSTTitan Silver
TBrownVVioletWWhite
WTTransparent WhiteYYellowYTTransparent Yellow
LMMetallic BlueLLLight BlueGTTransparent Green
LDDark BlueDTTransparent Orange
37
TAPE MECHANISM EXPLODED VIEW 1/1
F
G
1
E
2
R
3
8
10
J
L
N
14
b
18
19
36
46
47
55
9
53
20
21
22
23
24
B3 LUG PLATE
52
4
5
11
a
12
15
16
17
13
49
M
6
7
30
31
32
51
26
27
28
29
56
34
35
48
b
a
c
C
D
D
K
41
6
O
54
C
37
38
39
42
43
33
A
25
P
B
B
40
H
50
I
45
44
38
TAPE MECHANISM PARTS LIST 1/1
REF. NOPART NO.KANRIDESCRIPTION
NO.
1 S1-921-030-4A0 HEAD BASE
2 S1-821-030-070 AZIMUTH SPRING
3 S1-921-030-090 PANEL P SPRING
4 S1-921-260-050 GEAR PLATE SPRING
5 S1-921-265-020 GEAR PLATE ASSY
6 S1-921-140-370 P ARM COLLER
7 S1-921-140-340 P ARM
8 S1-921-030-110 HEAD PANEL
9 S1-921-143-160 BASE ASSY
10 S1-921-141-8A0 M CONTROL SPRING
11 S1-921-260-4A0 SENSING LEVER
12 S1-921-043-100 PINCH ROLLER ARM ASSY
13 S1-921-130-010 EJECT SLIDE LEVER
14 S1-921-141-3A0 P CONTROL SPRING
15 S1-921-140-550 PAUSE LEVER(E)
16 S1-921-140-120 PAUSE LEVER SPRING
17 S1-921-140-110 PAUSE STOPPER
18 S1-921-140-150 BUTTON LEVER SPRING(B)
19 S1-821-011-590 E KICK LEVER
20 S1-921-140-140 BUTTON LEVER SPRING(A)
26 S1-921-140-040 REW BUTTON LEVER
27 S1-921-140-050 FF,BUTTON LEVER
28 S1-921-140-060 STOP BUTTON LEVER
29 S1-921-140-600 PAUSE BUTTON LEVER
30 S1-821-100-700 FF GEAR
31 S1-921-050-060 SENSOR
32 S1-921-053-030 TAKE UP REEL ASSY
33 S1-829-100-010 PACK SPRING
34 S1-921-053-040 SUPPLY REEL ASSY
35 S1-821-100-990 BACK TENSION SPRING
36 S1-921-140-030 REC BUTTON LEVER
37 S1-921-140-170 P.S.LEVER SPRING
38 S1-921-073-040 RF CLUTCH ASSY
39 S1-921-070-030 RF BELT
40 S1-921-260-020 CAM GEAR
REF. NOPART NO.KANRIDESCRIPTION
NO.
41 S1-921-140-160 E ACTUATOR SPRING
42 S1-921-093-030 FLYWHEEL ASSY
43 S1-921-090-040 MAIN BELT
44 S1-921-120-010 MOTOR PULLEY
45 S6-002-030-220 MOTOR EG530AD-2B
46 S6-209-100-100 E HEAD PH-K380-MS1
47 S1-921-030-050 MG ARM
48 S1-921-140-210 REC BUTTON LEVER SPRING
49 S1-821-100-690 RECORD SAFETY LEVER
50 S1-821-128-9A0 MOTOR BRACKET
51 S1-821-010-500 PLAY BUTTON LEVER SPRING
52 S6-201-011-110 HEAD,RP7442ES-0951
53 S6-401-011-520 LEAF SW MSW-1541F
54 S1-921-015-010 CHASSIS ASSY
55 S1-921-030-100 MG ARM SPRING
56 S1-921-020-010 REC ARM
A S9-P04-200-310 C TAPPING SCREW 2-3
B S1-921-120-020 MOTOR COLLER SCREW
C S9-B10-200-510 P TAPPING BIND SCREW M2-5
D S9-C07-204-510 SCREW,TAPPING(CAMERA)M2-4.5
E S9-P01-200-610 SCREW,M2-6
F S9-P01-200-310 SCREW,M2-3
G S9-F08-200-710 AZIMUTH SCREW M2-7
H S1-921-120-030 MB SCREW
I S9-W02-300-100 P WASHER CUT 1.2-3.8-0.3
J S9-W02-500-100 P WASHER CUT 1.45-3.8-0.5
K S9-W01-400-100 P WASHER 2-3.5-0.4
L S9-W01-130-200 P WASHER 2.1-4-0.13
M S9-P08-203-010 PS TAPPING SCREW M2-3
N S9-P05-200-810 SCREW,S TAP 2-8
O S9-P04-200-410 C TAPPING SCREW M2-4
P S9-P04-200-510 C TAPPING SCREW M2-5
R S9-W13-000-100 Y WASHER PB 0.1T
39
CD MECHANISM EXPLODED VIEW 1/1
SHAFT,SLIDE
B
SF-P101NR
CHASSIS
B
1
2
A
A
3
SPINDLE
MOTOR(M1)
CD MECHANISM PARTS LIST 1/1
REF. NOPART NO.KANRIDESCRIPTION
NO.
1 S2-121-A28-400 COVER GEAR
2 S2-511-A21-000 GEAR MIDDLE
3 S2-511-A21-100 GEAR,DRIVE
A S1-PN2-03R-OSE SCR PAN PCS 2-3
B 87-261-073-410 SCR S-TPG FLT 2.6-6