Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol ; are trademarks of Dolby
Laboratories Licensing Corporation.
CD
Section
TC
Section
E Model
Model Name Using Similar MechanismWX-C55
CD Drive Mechanism TypeMG-378X-121
Optical Pick-up NameKSS-521A
Model Name Using Similar MechanismWX-C55
Tape Transport Mechanism TypeMG-25E-136
CD player section
Signal-to-noise ratio94 dB
Frequency response5 – 20,000 Hz
Wow and flutterBelow measurable limit
Cassette player section
Tape track4-track 2-channel stereo
Wow and flutter0.08 % (WRMS)
Frequency response30 – 20,000 Hz
Signal-to-noise ratio
Cassette typeDolby B NRDolby NR off
TYPE II, IV67 dB58 dB
TYPE I64 dB55 dB
SPECIFICATIONS
Tuner section
FM
Tuning rangeFM tuning interval:
50 kHz/200 kHz switchable
87.5 – 108.0 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
Aerial terminalExternal aerial connector
Intermediate frequency 10.7 MHz
Usable sensitivity9 dBf
Selectivity75 dB at 400 kHz
Signal-to-noise ratio65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.7% (stereo),
0.4% (mono)
Separation35 dB at 1 kHz
Frequency response30 – 15,000 Hz
(sure seal connectors)
Speaker impedance4 – 8 ohms
Maximum power output 45 W × 4 (at 4 ohms)
SERVICE NOTE
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
General
OutputsAudio outputs (2)
Power aerial relay
control lead
Power amplifier control
lead
IntputsTelephone ATT control
lead
Illumination control lead
Bus audio input connector
Bus control input
Power requirements12 V DC car battery
(negative ground)
DimensionsApprox. 178 × 100 × 181 mm
(w/h/d)
Mounting dimensionApprox. 178 × 100 × 160 mm
(w/h/d)
MassApprox. 2.2 kg
Supplied accessoriesParts for installation and
connections (1 set)
Dummy cover (1)
Design and specifications are subject to change without
notice.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
NOTES ON PICK-UP FLEXIBLE BOARD
The pick-up flexible board in this set is secured to the optical pickup with an adhesive tape. Once the tape is removed, an adhering
force becomes weak, and it cannot be reused.
Therefore, if the optical pick-up is replaced, replace also the pickup flexible board with a new one.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
2
Page 3
TABLE OF CONTENTS
1. GENERAL
Location of Controls............................................................... 4
7-5. CD Mechanism Section (1) .............................................. 57
7-6. CD Mechanism Section (2) .............................................. 58
7-7. CD Mechanism Section (3) .............................................. 59
8. ELECTRICAL PARTS LIST ................................... 60
3
Page 4
SECTION 1
GENERAL
This section extracted from
instruction manual.
4
Page 5
56789
Page 6
Page 7
Page 8
Page 9
Page 10
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. COVER
2 claws
1 PTT 2.6x5
3 cover
2-2. FRONT PANEL ASSY
1 PTT 2.6x5
3 claw
8 front panel assy
7 CN501
5 CN801
4 claw
6 CN500
2 PTT 2.6x5
10
Page 11
2-3. CD MECHANISM BLOCK
5 bracket (CD)
4 PTT 2.6x5
3 CD mechanism block
2 CN802
1 PTT 2.6x5
2-4. TR BOARD, HEAT SINK
4 CN901
9 heat sink
8 PTT 2.6x12
3 TR board
5 PTT 2.6x12
7 PTT 2.6x12
6 PTT 2.6x12
1 PTT 2.6x10
2 cover (D/D converter)
11
Page 12
2-5. CD BOARD
ground point screw
4
(PTT2.6x6)
3 ground point screw
(PTT2.6x6)
1 CN803
2 CN402
5 CD board
6 insulating sheet (U)
2-6. CHASSIS (U)
4 chassis (U)
2 PTT 2.6x5
1 PTT 2.6x5
3 PTT 2.6x5
12
Page 13
2-7. TAPE MECHANISM BLOCK
5 tape mechanism block
3 CN600
2 PTT 2.6x5
4 CN300
1 PTT 2.6x5
2-8. MAIN BOARD
ground point screw
1
(PTT2.6x6)
ground point screw
2
(PTT2.6x6)
3 MAIN board
4 insulating sheet (L)
13
Page 14
2-9. CHASSIS (TM) ASSY
1 P 2x3
6 chassis (TM) assy
2 P 2x3
3 P 2x3
4 claw
5 CN4
2-10. SENSOR BOARD
1 claw
3 guide (DISC M)
2 claw
4 PS 2x3
5 SENSOR board
14
Page 15
2-11. SERVO BOARD
6
loading motor assy
3
Removal the
two solders.
5
P 2x3
1
4
wires
CN3
7
PS 2x5
8
PS 2x5
2
CN2
9
SERVO board
2-12. ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
6 retaining ring (roller)
3 compression spring (RA-L)
8 PS 2x3
9 LOAD board
7 roller assy
4 washer
retaining ring (roller)
arm (roller)
5 arm (roller)
2 compression spring (RA-R)
arm (roller)
washerwasher
Fig. 1
1 tension spring (RA-E)
15
Page 16
2-13. CHASSIS (OP) (O/S) ASSY
8 compression spring (FL)
1 tension spring (KF8)
5 Turn loading ring in the
direction of the arrow.
6 chassis (OP) (O/S) assy
7 compression spring (FL)
4 Fit lever (D) in the
direction of the arrow.
2 damper (T)
2-14. OPTICAL PICK-UP BLOCK
1 P 2x3
2 sled motor assy
3 damper (T)
3 optical pick-up block
16
Page 17
SECTION 3
ASSEMBLY OF MECHANISM DECK
Note : Follow the assembly procedure in the numerical order given.
3-1. HOUSING
4 Fit claw on B part.
3 Put the housing
under A part.
housing
5 Fit projection on C part.
2 Install the hanger onto
two claws of the housing.
7 Holder the hanger by bending the claw.
1 Install the catcher to the hanger.
hanger
6 Fit projection on D part.
C part
8 Hold the hanger by
bending the claw.
D part
3-2. ARM (SUCTION)
projection
A part
B part
2 Move the arm (suction) in the arrow
Direction and fit on projection.
1 Fit the arm (suction) on the shaft.
17
Page 18
3-3. LEVER (LDG-A) / (LDG-B)
shaft A
1 Fit the lever (LDG-A) on
shafts A to C and install it.
3-4. GEAR (LOADING FT)
shaft B
shaft C
shaft A
shaft B
3 type-E stop ring 2.0
2 Fit the lever (LDG-B) on
shafts A and B and install it.
hole
hole
4 Align hole in the gear (LDG-D)
with hole the lever (LDG-A).
2 tension spring (LD-2)
gear (LDG-D)
lever (LDG-A)
gear (LDG-FB)
5 gear (loading FT)
1
2 tension spring (LD-1)
6 polyethylene washer
3 Move the lever (LDG-B)
in the arrow direction.
18
Page 19
3-5. GUIDE (C)
2 guide (C)
1 claws
3-6. CAPSTAN / REEL MOTOR (M904)
3 belt (25)
2 precision screws P 2x3
1 main motor assy
(CAPSTAN/REEL) (M904)
30°
19
Page 20
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Wipe the following components with an absorbent cotton cloth
moistened with alcohol before adjustment :
PB headPinch roller
IdlerRubber belt
Capstan
2. Demagnetize the PB head using a head demagnetizer.
3. Be careful not to use a magnetized screwdriver.
4. After the adjustment is completed, lock the adjustment parts
using screws.
5. Unless otherwise specified, make adjustments at the specified
voltage (14.4 V).
Torque Measurement
ModeTorque MeterMeter Reading
2.95 – 6.37 mN • m
FWD(30 – 65 g • cm)
CQ-102C
FWD
Back T ension
REV(30 – 65 g • cm)
CQ-102RC
REV
Back T ension
FF, REWCQ-201B(60 – 200 g • cm)
(0.42 – 0.90 oz • inch)
0.05 – 0.44 mN • m
(0.5 – 4.5 g • cm)
(0.01 – 0.06 oz • inch)
2.95 – 6.37 mN • m
(0.42 – 0.90 oz • inch)
0.05 – 0.44 mN • m
(0.5 – 4.5 g • cm)
(0.01 – 0.06 oz • inch)
5.89 – 19.61 mN • m
(0.83 – 2.78 oz • inch)
TEST MODE
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and AM Auto Scan/Stop Le vel adjustments can be
performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Turn ON the regulated power supply to ACC and BATT
terminals is “OFF” position (display 1:00).
2. Push the preset 4 button.
3. Push the preset 5 button.
4. Press the preset 1 button for more than two seconds.
5. Then the display and LED on the front panel indicates all lights,
the test mode is set.
<Release the Test Mode>
1. Push the OFF button.
T ape T ension Measurement
ModeTension MeterMeter Reading
FWDCQ-403A
REVCQ-403R
882.60 mN
(more than 90 g)
(more than 3.17 oz)
20
Page 21
See the adjustment location from on page 23 for the
adjustment.
TAPE SECTION
0 dB = 0.775 V
Tape Speed Adjustment
Procedure :
1. Put the set into the FWD PB mode.
test tape
WS-48A
(3 kHz, 0 dB)
set
AUDIO OUT REAR
frequency counter
10 kΩ
TUNER SECTION
0 dB = 1 µV
Cautions during repair
When the tuner unit is defective, replace it by a new one because
its internal block is difficult to repair.
Note on Adjustment
The adjustments of tuner section, should be performed according
to the following sequence.
1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment
3. AM Auto Scan/Stop Level Adjustment
FM Auto Scan/Stop Level Adjustment
Setting :
SOURCE button: FM
FREQUENCY SELECT switch : FM 200k
Specification : Constant speed
Frequency counter
3,010 to 3,030 Hz
Adjustment Location : Capstan motor internal volume
(See page 23)
DOLBY Level Adjustment
Setting :
Preset 3 (SHUF/;) button : Light down mark ;
(DOLBY OFF)
test tape
P-4-D400
(400 Hz, 0 dB)
set
main board
TP-L
TP-R
level meter
Procedure :
1. Put the set into the FWD PB mode.
2. Adjust RV100 (L-CH) and RV200 (R-CH) on main board so
that level meter reading is – 6 ± 0.5 dB (0.37 to 0.41 V).
Adjustment Location : See page 23.
FM RF signal
generator
antenna
0.01 µF
Carrier frequency : 97.9 MHz
Output level: 22 dB (12.6 µV)
Mode: mono
Modulation: 1 kHz, 22.5 kHz deviation (30%)
terminal
Procedure :
1. Set to the test mode.
2. Push the SOURCE button and set to FM.
Display
SHUF1
3. Push the preset 3 button.
Display
PRESET
SHUF1
set
4. Adjust with the volume RV2 on TU1 so that the “FM”
indication turns to “2” indication on the display window.
But, in case of already indicated “2”, turn the RV2 so that put
out light “2” indication and adjustment.
Display
PRESET
SHUF1
Adjustment Location : See page 23.
21
Page 22
FM Stereo Separation Adjustment
Setting :
SOURCE button: FM
FREQUENCY SELECT switch : FM 200k
FM RF signal
generator
0.01 µF
Carrier frequency : 97.9 MHz
Output level: 70 dB (3.2 mV)
Mode: stereo
Modulation: main :1 kHz, 33.75 kHz deviation (45%)
sub :1 kHz, 33.75 kHz deviation (45%)
19 kHz pilot : 7.5 kHz deviation (10%)
antenna
terminal
set
AUDIO OUT REAR
level meter
10 kΩ
AM Auto Scan/Stop Level Adjustment
Note : This adjustment should be performed after the FM Auto
Scan / Stop Level Adjustment is done.
Setting :
SOURCE t MODE button: AM
FREQUENCY SELECT switch : AM 10k
15 pF
30 Ω
65 pF
AM RF signal
generator
AM dummy
antenna (50 Ω)
set
set
Procedure :
FM stereo
signal generator
output channel
Level meterLevel meter
connectionreading (dB)
L-CHL-CHA
R-CHL-CHAdjust RV4 on TU1 for
maximum reading.
R-CHR-CHC
L-CHR-CHAdjust RV4 on TU1 for
maximum reading.
L-CH stereo separation : A – B
R-CH stereo separation : C – D
The separations of both channels should be equal.
Specification : Separation more than 28 dB
Adjustment Location : See page 23.
B
D
Carrier frequency : 1000 kHz
Output level: 30 dB (44.7 µV)
Mode: mono
Modulation: 1 kHz, 22.5 kHz deviation (30%)
Procedure :
1. Set to the test mode. (See page 20.)
2. Push the SOURCE button.
3. Push the MODE button and set to AM.
Display
SHUF1
4. Push the preset 3 button.
Display
PRESET
SHUF1
antenna
terminal
22
5. Adjust with the volume RV1 on TU1 so that the “AM”
indication turns to “2” indication on the display window. But,
in case of already indicated “2”, turn the RV1 so that put out
light “2” indication and adjustment.
Display
PRESET
SHUF1
Adjustment Location : See page 23.
Page 23
J
Adjustment Location :
– set lower view –
DOLBY
LEVEL
ADJ
RV200
(R-CH)
RV100
(L-CH)
– set upper view –
TP-R
DOLBY LEVEL
TP-L
TAPE SPEED ADJ
TU1
ADJ
RV1 AM AUTO SCAN/STOP LEVEL AD
RV2 FM AUTO SCAN/STOP LEVEL ADJ
RV200 (R-CH) DOLBY LEVEL ADJ
RV4 FM STEREO SEPARATION ADJ
RV100 (L-CH) DOLBY LEVEL ADJ
23
Page 24
CD SECTION
Note :
1. CD Block basically constructed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use the oscilloscope with more than 10 MΩ impedance.
4. Clean an objective lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
Focus Bias Adjustment
Setting :This adjustment is performed with the set placed
horizontally.
oscilloscope
(DC range)
servo board
TP (RF)
TP (RF GND)
Procedure :
1. Connect an oscilloscope between TP (RF) and TP (RF GND)
on the servo board.
2. Connect the power supply.
3. Push the RESET button (SW701) on the control board.
4. Insert the disc (YEDS-18) and playback.
5. Adjust RV1 so tha t the oscilloscope waveform is clear and check
RF signal level is correct or not.
Note : Clear RF signal waveform means that the sharp “ ” can be
clearly distinguished at the center of the waveform.
Focus Gain Adjustment (Coarse adjustment)
This adjustment is not required unless the following parts are
replaced:
•Optical pick-up
•RV4
Procedure :
1. Set RV4 to the standard position. (mechanical center)
2. Check whether operation noise (while noise type) caused by
the 2-axis device (lens section of the optical pick-up) is
abnormally loud.
If the operation noise is too loud, turn RV4 slightly counterclockwise.
•If the gain is too low :
Focus does not function and no music is selected.
•If the gain is too high :
Noise caused by scratches and dust is heard and the operation
becomes unstable.
• When observing the eye pattern, set the oscilloscope to A C range
and raise the vertical sensitivity so that it may be easily seen.
CN1
IC1
TP
(RF GND)
IC2
TP
(RF)
CN3
RV1
FOCUS BIAS ADJ
24
Page 25
SECTION 6
DIAGRAMS
6-1. IC PIN DESCRIPTIONS
• IC500 µPD78058GC-B51-8BT (SYSTEM CONTROL)
Pin No.Pin NameI/OPin Description
1VSMIFM, AM common signal meter A/D conversion input
2NILINot used. (Connect to ground in this set.)
3SD-INIStation detecter input (“H” : with SD)
4AVSS—Analog ground
5FM-STIFM stereo input pin (“L” : stereo)
6AM-STIAM stereo input pin (“L” : stereo)
7AVREF—Reference power supply for D/A conversion.
8PLL-SIIPLL serial data input
9PLL-SOOPLL serial data output
10PLL-CKOOPLL serial clock output
11PLL-CEOPLL serial chip enable output
12AMSIMusic with/without detection input at AMS. (“L” : with music, “H” : without music)
13PLAY/AMSOTape AMS control output
14F/ROFWD/REV detection output (“H” : FWD, “L” : REV)
15MTLOMetal control output (“H” : metal)
16BUS-SIIUni-link serial interface data input
17BUS-SOOUni-link serial interface data output
18BUS-CKIIUni-link serial interface clock input
19BUS-CKOOUni-link serial interface clock output
20TAPE-MUTEOTape mute control output
21DOLONI/ODolby control input/output
22EQ-CEOEqualizer serial chip enable output (Not used in this set.)
23EQ-CLKOEqualizer serial clock output (Not used in this set.)
24DATAOSerial data output
25VOL-CLKOElectronic volume serial clock output
26VOL-CEOElectronic volume serial chip enable output
27MUTOSystem mute control output
28AMP-ONOPower amplifier power supply control output
29AUX-MUTOAUX mute control output
30C/BI/ODolby B/C select control output (Not used in this set.)
31PWR-SELIPower select initial setting input
32TESTITest mode setting input
33VSS—Ground
34NILINot used. (Connect to ground in this set.)
35POWER-ONOSystem power supply control output
36TUN-ONOTuner power supply control output
37FM-ONOFM power supply control output
38AM-ONOAM power supply control output (Not used in this set.)
39NILINot used. (Connect to ground in this set.)
40CM-ONOCapstan motor control output
41TP-ONOTape power supply control output
42LM-EJOLoading motor control output (Eject direction)
43LM-LODOLoading motor control output (Loading direction)
44, 45POS1, 0IPosition signal detection input 1, 0
46BEEPOBuzzer control output
47, 48POS2, 3IPosition signal detection input 2, 3
49RELIReel stand rotation detection input
50RC-IN1IRotary commander A/D conversion input 1
51SUB-CEOSub serial chip enable output (Not used in this set.)
52SUB-DATAOSub serial data output (Not used in this set.)
53SUB-CLKOSub serial clock output (Not used in this set.)
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Page 26
Pin No.Pin NameI/OPin Description
54SYS-RSTOSystem reset signal output
55BUS-ONOBus ON control output
56, 57RE1, 0IRotary encoder input 1, 0
58AD-ONOPower supply output for A/D conversion.
59RAMBUIRAM reset detection input
60RESET—Reset input
61SIRCSIRemote control input (Not used in this set.)
62BU-INIBackup power detection input
63NIL—Not used (Connect to ground in this set.)
64ACC-INIAccessory power supply detection input
65DIMMERIDimmer control input
66TEL-MUTEITelephone mute control input
67KEY-ACKIKey input acknowledge
68VDD—µ-con power supply
69X2OMain ceramic oscillator output (5 MHz)
70X1IMain ceramic oscillator input (5 MHz)
71IC—Connect to ground in this set.
72XT2OSub crystal oscillator output (32.768 kHz)
73XT1ISub crystal oscillator input (32.768 kHz)
74AVDD—Power supply for A/D conversion.
75AVREF—Reference power supply for A/D conversion.
76, 77KEY-IN0, 1IKey input 0, 1
78KEY-IN2IKey input 2 (Not used in this set.)
79RC-IN0IRotary commander A/D conversion input 0
80DSTSELIInitial setting input of destination.
26
Page 27
• IC801 µPD78054GC-A32-8BT (CD SYSTEM CONTROL)
Pin No.Pin NameI/OPin Description
1LEDCLK—Not used in this set.
2LEDCKO—Not used in this set.
3LEDSO—Not used in this set.
4AVSS—Analog ground
5FL-CE0ODisplay driver chip select output 0
6FL-CE1ODisplay driver chip select output 1 (Not used in this set.)
7AVREF1—Reference power supply for D/A conversion.
8FL-RSTODisplay driver reset output (Not used in this set.)
9FL-SOODisplay driver data output
10FL-CKOODisplay driver clock output
11SRDT—Not used in this set.
12NCO—Not used.
13SCLK—Not used in this set.
14FL-BLKODisplay driver blank control output
15NIL—Not used. (Connect to ground in this set.)
16UNISIIUni-link serial interface data input
17UNISOOUni-link serial interface data output
18UNICKIIUni-link serial interface clock input
19LINKOFFOLink off output
20ILLONOIllumination power supply control output
21CMDONOCD mechanism power supply control output
22CD-ONOCD power supply control output
23SP-SELOSignal (L/R channel) select control signal output to spectrum analyzer control IC.
24SP-COFrequency select control signal output to spectrum analyzer control IC.
25SP-BOFrequency select control signal output to spectrum analyzer control IC.
26SP-AOFrequency select control signal output to spectrum analyzer control IC.
27CDMUTOCD mute control output
28EMPH-OOEmphasis control output
29CD-RSTOCD signal process IC reset output
30XMODE—Not used in this set.
31, 32NIL—Not used. (Connect to ground in this set.)
33VSS—Ground
34TBTGSELICD tracking balance, tracking gain auto adjustment select input.
35 – 39NIL—Not used. (Connect to ground in this set.)
40GFSIGFS signal detection input
41SQ-SIISUB Q data input
42SQ-CKOOSUB Q clock output
43NIL—Not used. (Connect to ground in this set.)
44CD-SOOCD signal process serial data output
45CD-LATOCD signal process latch output
46CD-CKOOCD signal process serial clock output
47PH2I8/12 cm disc detection input
48F-OKIFocus signal detection input
49LD-ONOLaser on/off select control output
50D-SWIDown switch detection input
51PH1IDisc insert detection input
52L-SWISled limit switch input
53LM-LODOLoading motor control output (Loading direction)
54LM-EJOLoading motor control output (Eject direction)
55PH3IDisc detect sensor input
56CTL1ODriver IC control output
57NCO—Not used.
27
Page 28
Pin No.Pin NameI/OPin Description
58EESIOONot used in this set.
59EECKOONot used in this set.
60RESET—Reset input
61SCORISCOR signal detection input
62CNINITrack jump count input
63SELF-SWIDisc self store detection input
64SENSISENS signal detection input
65DQSY—Not used in this set.
66BUINIBackup power supply detection input
67BUSONIBus on control input
68VDD—µ-con power supply
69X2OMain ceramic oscillator output (5 MHz)
70X1IMain ceramic oscillator input (5 MHz)
71IC—Not used. (Not used in this set.)
72XT2OSub crystal oscillator output (Not used in this set.)
73XT1ISub crystal oscillator input (Connect to ground in this set.)
74AVDD—Power supply for A/D conversion.
75AVREF—Reference power supply for A/D conversion.
76NIL—Not used. (Connect to ground in this set.)
77SP-INISpectrum analyzer control signal input from spectrum analyzer control IC.
78TSTIN0ILOAD/EJECT prohibition setting input
79NCO—Not used.
80LEDOE—Not used in this set.
28
Page 29
WX-C5000
MAIN
1
SECTION
(Page 31)
: CD
Signal path
IC801(1/2)
CD SYSTEM CONTROL
28 EMPHOD
27 CDMUT
DET
DISC IN
51
PH1
Q11,D12
DET
Q12,D11
DISC SIZE
47
PH255PH3
LOADING
COMPLETION
SCOR
GFS
40
61
Q13,D10
BATT
8V REG
Q851,852
MD8V
5V REG
Q853,854
SERVO 5V
Q807
22
CD ON
SQ SI42SQ CKO64SENS44SO
41
21
CMDON
Q803
CD
LAT46CKO
45
SW1
63
SELFSW
CDRST
29
(SELF)
F OK
48
CNIN
62
SW4
50
DSW
LDON
49
(DOWN)
LMLOD
53
LMEJ
54
52
LSW
SW3
(LIMIT)
CTL1
56
Q806
R-CH
9ROUT
12LOUT
IC401
D/A CONVERTER
DATA
CLKO
XTI
1
4 LRCK
5
6 BCK
19
21PCMD
20LRCK
22BCK
34XTAI
IC1
57 XLTO
14 RF
59 CLKO
56 DATO
DIGITAL SIGNAL PROCESSOR
IC2
RF AMP, SERVO CONTROL
50 XRST
31RFO
19CLK
20XLT
21DATA
22XRST
E
PD2
F
39
35 PD1
36
38
SERVO 5V
X401
17
EMPH
16.9MHz
55 CNIN
23
C. OUT
FE BIAS
37
RV1
Q804
18
MUTE
XTO
20
1FOK
3 MDP
54 SEIN
24SENS
25FOK
FEO
1
RV4
FOCUS BIAS
FEI
2
34 PD
FOCUS GAIN
2929
43
27
GFS
SCOR
6FEO
16SLO
13TAO
LD DRIVE
33 LD
Q1,2
19CH1 IN
22CH2 IN
IC3
DRIVE, MOTOR DRIVE
FOCUS/TRACKING COIL
16 CH2+
15 CH2–
24CH3 IN
18 CH1+
3CH4 IN
17 CH1–
13 CH3+
M902
M
46
SQSO
14 CH3–
(SLED)
47
SQCK
49
51
SENS52DATA
12 CH4+
M
M901
XLAT
11 COM
(SPINDLE)
53
CLOK
M
M903
10 CH5+
(LOADING)
6FWD
4CTL1
7REV
5CTL2
04
I - V
AMP
KSS-521A
OPTICAL PICK-UP
6-2. BLOCK DIAGRAM — CD SECTION —
PD
LD
TRACKING
FOCUS
Page 30
MAIN
SECTION
(Page 31)
IC701
FL DRIVER
CE
98
5
CEO
)
2/2
(
IC801
CD SYSTEM CONTROL
IC802
SA CONTROL
3
SA
)
2/2
(
IC500
SYSTEM CONTROL
F/R
MTL
14
18
19
FWD/REV
MTL/NORMAL
IC300
TAPE EQ/DOLBY NR
32
FL701
FL
DRIVER
Q702-704
2
3
2GB
3GB
CL1GB
BLK
DATA
991
97
100
9
14
SO
BLK
FLFL
SP INCKO
177710
AIN AOUT
8
DOL ON
211315
MAIN SECTION
TAPE L-CH
24
16
L OUT
NR ON
DOLBY
EQ
R-CH
ABCSEL
2
NR
FL+
11 12 1410
TAPE MUTE
20
(Page 31)
17
MUTE/TAPE
AMS OUT
AUTO
34
23
AMS
12
14
MUSIC
+3V REG
POWER
SP
SENSOR
Q901
Q856
CONTROL
BU5V
A26B25C24SEL
PLAY/AMS
20
AMS/PLAY
R-CH
R-CH
DRIVER +5V
Q701
+5V REG
KEY
76
IN0
2729
MATRIX
77
IN1
KEY
+10V REG
Q857, 858
BATT
KEY
ACTIVE
58
AD ON
POS0
POS1
45
44
RV100
DOLBY LEVEL
CONTROL
Q859, 860
ILL POWER
Q504, 505
67
KEY ACK
POS2
POS3
47
48
TAPE
MECHANISM
(L-CH)
REF VOLTAGE
REL
49
BLOCK
AVREF
Q805
CONTROL
BU5V
J500
(REMOTE IN)
50
IN179IN0
RC
LM EJ
LM LOD
424340
4
2
DRIVE
MOTOR
LOADING
7
9
BATT
MOTOR DRIVE
CAPSTAN/REEL
M
M904
(CAPSTAN/REEL)
Q802
IC600
Q603, 604
20
ILL ON
UNISI
BUS ON
16
67
55ON16SI17SO18
BUS
CM ON
VR771
TAPE POWER
UNICKI
66
18
19
62
CKI
CKO
BU IN
RE1
RE0
565741
JOG
ENCODER
BATT
CONTROL
Q601, 602
Q600
+8.5V REG
+8.5V
X801
RESETX2X1BU IN
6069
54
60
RESET
SYS RST
TP ON
5MHz
70
35
POWER ON
RST
IC620
BUS INTERFACE
RST
BATT
Q620
DET
Q620
BATT
IC501
RESET
1
RESET
UNISO
17
LINK OFF
19
SW701
3030
Q801
9
8
11
IN
IN
564
231
OUT
BUS
DATA
6
CN620
(BUS CONTROL IN)
ON
BUS
ON
112
Q621
8
CLK
BATT
CHECK
CLK
213
310
4
D622
7
BATT
6-3. BLOCK DIAGRAM — TAPE SECTION —
WX-C5000
HP901
L
PLAYBACK HEAD
FWD
L
R
R
Signal path
REV
: TAPE (PB)
04
Page 31
WX-C5000
FL+
FL–
RL+
IC331
31
TONE
383635
18
ANT AM L-CH OUT
1
RL–4FR+12FR–3RR+11RR–
2
10
9
7
RL+
RL–
RL IN
11
Q190
(Page 30)
20
RL
OUT
SEL OUT
L
R
SEL OUT
CE
CL
DI
37
TAPE L-CH
2
CD
TAPE
SECTION
(Page 30)
R-CH
16
12
AM DET
R-CH OUT
ANT FMR-CH
2
422
STNBY MUTE
TAPE
VC BUFFER
17 16 1844 34
CD L-CH
1
SECTION
R-CH
3
SECTION
SA
1
IC341
2
3
(Page 29)
FM8V
D1
8
9
+8V TU
+8V FM
D657
Q340
SA MUTE
IC500 (1/2)
SYSTEM CONTROL
VSMDATA
124
Q3
S-METER
AM8V
10
19
+8V AM
S-METER
BATT
DET
MUTE
Q651,652
25
26
VOL CE
VOL CLK
FM ST5SD IN
3
20SD22ST13
R654
Q655
MUTE
DRIVE
Q500
MUTE
SWITCH
46
27
MUT
BEEP
X1
1
XI
IC1
PLL
SEEK
7
SEEK
1
9
CN651
AUDIO OUT
REAR
FRONT
L
RCN401(2/2)
L
-3
-6
-5
R-CH
-4
R
POWER AMP
R-CH
5
3
FL+
FL–
IC751
FL IN
12
Q180
21
FL
OUT
IC350
ELECTRONIC VOLUME
R-CH
–2
–1
CN401(1/2)
BUS AUDIO IN
L
R
LPF
TU1
TUNER INIT
D659
BATT
7.2MHz
20
XO
AM IF
13
11
IFC AM
BATT
DET
Q653
28
29
AMP ON
AUX MUT
21
IFC FM
15
TEST
32
TEST
AM OSC15FM OSCSI
6
VCO
D663
8
6
DATA OUT
16
ACC14ILL13ATT16BATT
7
F901
Q654
Q501
ACC DET
Q503
SWITCH
DIMMER
64
65
66
ACC IN
DIMMER
TEL MUTE
PLL
SD
CKO
CE
9
10
11
5
4
2
CE
CLK
DATA IN
LO/DX
PD
9
18
LPF
Q1, 2
4
5
VT
LO/DX
BATT
BATT
IC680
POWER SUPPLY
MODE2 VCC
27
36
TUN ON
X269X1
70
X500
5MHz
ANT REM5AMP REM
6
8
ANT+B
AMP+B
BU+B9COM8V
MODE1
3
5
BU5V
PULL-UP+5V
RAM
RESET
1
37
59
FM ON
RAMBU
XT2
XT173PWR SEL
72
X501
32.768KHz
Signal path
: FM
: AM
6
AM8V11FM8V
10
FM8V
AM8V
COM8V
FM200K
IC502
BU.5V
31
B
A
S501
(POWER SELECT)
: TAPE (PB)
: CD
S502
FREQUENCY
( )
AM10K
80
DSTSEL
SELECT
FM50K
AM9K
3131
J1
6-4. BLOCK DIAGRAM — MAIN SECTION —
(ANTENNA)
04
Page 32
Ref. No. Location
IC1D-2
Location
(SERVO Board)
• Semiconductor
IC2D-5
IC3B-2
Q1F-4
Q2F-5
Q11E-4
Q12F-3
Q13F-1
W or less unless otherwise
4
/
1
: Through hole.
: internal component.
f
a
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
•
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Note on Printed Wiring Boards:
• b : Pattern from the side which enables seeing.
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
(Side A)parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
CD board
LIMIT board
TR board
SUB board
: internal component.
f
specified.
50 WV or less are not indicated except for electrolytics
and tantalums.
• % : indicates tolerance.
•
• All resistors are in Ω and
Replace only with part number specified.
with mark 0 are critical for safety.
Note: The components identified by mark 0 or dotted line
• C : panel designation.
supply from ACC and BATT cords.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
SERVO board
MAIN board
CONTROL board
Voltage variations may be noted due to normal produc-
tion tolerances.
F : FM
f : AM
E : TAPE (PB)
• Signal path.
J : CD
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
3232
6-5. CIRCUIT BOARDS LOCATION
SENSOR board
LOAD board
JOG board
Page 33
WX-C5000
6-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION —
SW1
PICK-UP
OPTICAL
11
1-659-881-
PICK-UP FLEXIBLE BOARD
JR05
(CHASSIS)
C40
SERVO BOARD
A
D12
SW1
(SELF)
ON:WHEN THE DISC IS
IN/OUT OPERATION
KSS-521A
1
5
1
7
C39
IC3
2822212515
DISC IN
DETECT
D12
CN2
JR07
CN1
6
BLU
BLU
SW4
(DOWN)
ON:WHEN COMPLETION
SW4
JR58
B C E
Q2
R16
R17
R19
JR53
JR52
L2
TP(RF)
JR30
JR28
JR29
RED
12
(31)
1
1-659-834-
OF THE DISC
CHUKING OPERATION.
7
WHT
WHT
JR59
JR57
JR56
JR55
R7
B C E
Q1
C9
16
JR54
F
M
3
8
JR02JR31
WHT
-
Q12
Q13
9
5
WHT
WHT
CN3
BLK
RED
YEL
MM
WHT
11
6
1
M903
(LOADING)
M901
M902
(31)
11
(11)
1-660-796-
(CHASSIS)
(CHASSIS)
(SPINDLE)
(SLED)
3333
234 5 6
1
04
11
1-659-880-
BOARD
(31)
C18
353025
Q11
R47
C36
JR39
L1
521
C17
R20
C16
C23
JR40
JR42 JR43
C7
C1
MOTOR FLEXIBLE
SUB BOARD
LOAD BOARD
BLU
BLK
RED
CN4
13
R9 R8
RV1
JR60
R5
JR41
JR25
R21 R10
R11
R14
R15
C10
C13
C15
C14
C12
JR50
JR47
JR49JR48
JR51
JR45 JR46
JR44
JR37
JR36JR34
JR35
JR22
JR15
JR24
JR27
JR26
E
21
(31)
R12
3
1
2
BLU
BLK
RED
1-660-797-
SW3
(LIMIT)
ON:WHEN THE OPTICAL PICK-UP
IS INNER POSITION.
SW3
1-659-835-
12
LIMIT BOARD
R10
D11
D11
DETECT
DISC SIZE
(8CM/12CM)
R11
D10
DETECT
D10
LOADING COMPLETION
SENSOR BOARD
TP
(RF GND)
R30
R31
C20
C22
R34
C24
R36
C26C27
C30
L3
JR16
51
1
0
1 5 78 10 14
JR06
JR08
R23
R24
R22
R51
JR09
JR10
B
C11
JR18
JR17
R40
C38
JR11
C31
JR12
C2
R1 R2
R49 R48
R50
JR03
JR13
JR14
C
R32
R33
BL2
RV4
C25 R35
R37
R38
R39
C28
C29
C32
R41
R42
JR19
JR20
C3
JR23
R3 C4
15
202530
30
10
IC1
40
35
20
25
JR21
D
BLU
BLU
R27
R29
R28
BL1
C19
C21
45
40
1510
IC2
15
20
C35
R46
C34
R45
R43
C33
R44
C5
R6 C6
R4
JR38
5
1
6055
45
50
10
CN1
15
1
CD
CN802
BOARD
(Page 36)
Page 34
(Page 35)
: Impossible to measure
∗
under no-signal conditions.
no mark : CD PLAY
Note:
• Voltage and waveforms are dc with respect to ground
3434
6-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 35 for Waveforms and page 48 for IC Block Diagrams.
WX-C5000
Page 35
WX-C5000
(MODE : CD PLAY)
• Waveforms
1
0V
Approx. 620mVp-p
(FEO)
1
IC2
2
1.2Vp-p
(RFO)
ea
IC2
3
0V
(TEO)
Approx. 200mVp-p
rs
IC2
4
2.6Vp-p
7.6µsec
(MDP)
3
IC1
5
5.8Vp-p
22.7µsec
(LRCK)
w;
IC1
6
5.7Vp-p
(BCK)
474nsec
ws
IC1
(Page 37)
7
3.2Vp-p
(XTAI)
ef
16.89MHz
IC1
under no-signal conditions.
no mark : CD PLAY
Note:
• Voltage and waveforms are dc with respect to ground
3535
6-8. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (2/2) — • Refer to page 48 for IC Block Diagrams.
(Page 34)
Page 36
(Page 38)
(Page 33)
(Page 45)
3636
6-11. PRINTED WIRING BOARD — CD SECTION —
6-9. PRINTED WIRING BOARD — TR SECTION —
WX-C5000
(Page 39)
6-10. SCHEMATIC DIAGRAM — TR SECTION —
Location (CD board)
• Semiconductor
(Page 37)
Ref. No. Location
D401F-4
D801G-8
D802G-10
D851H-2
(Page 37)
D852I-2
D853E-2
D854E-2
D855E-2
D856F-3
D857F-3
D858F-2
D859K-3
D860I-11
D862J-11
D865K-10
IC401F-5
IC801I-7
IC802F-8
Q801G-8
Q802G-9
Q803G-7
Q804F-8
Q805I-9
Q806H-3
Q807G-7
Q811F-10
Q812E-10
Q851H-1
Q852G-3
Q853I-1
Q854H-3
Q856D-4
Q857G-1
Q858F-2
Q859J-2
Q860K-2
no-signal conditions.
no mark : CD PLAY
Note:
• Voltage is dc with respect to ground under
Page 37
WX-C5000
(Page 41)
(Page 35)
condition.
no mark : CD PLAY
Note:
• Voltage is dc with respect to ground under no-signal
3737
6-12. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 51 for IC Block Diagrams.
(Page 41)
(Page 36)
(Page 36)
(Page 46)
Page 38
(Page 36)
6-13. PRINTED WIRING BOARD — MAIN SECTION —
3838
WX-C5000
D756C-8
D757B-7
D758B-7
IC1E-11
IC300H-10
Ref. No. Location
(D1)F-11
(D500)I-2
Ref. No. Location
• Semiconductor Location
IC331J-11
(D501)I-3
(D502)F-5
(D503)F-5
D504K-6
D505H-6
IC341F-10
D506B-12
IC350H-8
D507B-12
IC500J-4
D508K-11
(IC501)J-3
D509K-11
IC502I-2
D510K-11
(IC600)F-2
(D511)L-4
IC620F-3
(D512)L-5
(IC680)D-6
D513H-5
(IC751)A-9
(D514)I-3
D600D-2
(Q1)D-11
D601G-2
(Q2)D-12
D602F-2
Q3H-13
(D603)E-2
(Q4)F-6
D620E-2
(Q5)E-6
(D621)E-3
Q180E-8
(D622)E-3
Q190E-8
D623B-2
Q280E-9
D624D-3
Q290E-9
D625B-2
Q340D-9
(D651)C-3
Q500G-5
D652B-6
Q501G-4
D653A-6
Q503G-4
D654B-6
Q504K-6
D656D-3
Q505K-6
D657D-7
(Q600)G-2
D659E-7
Q601G-2
D660C-6
Q602G-2
D661C-6
(Q603)E-3
D662D-3
(Q604)E-2
D663D-4
Q620E-2
D664F-5
Q621E-3
D680E-8
Q651B-7
(D681)E-9
Q652B-7
D751C-9
Q653E-7
D752C-9
Q654E-4
D753C-9
(Q655)E-8
D754C-8
D755B-8
( ) : SIDE B
Page 39
WX-C5000
(Page 36)
(Page 47)
3939
(Page 45)
Page 40
(Page 41)
condition.
no mark : FM
(): AM
Note:
• Voltage is dc with respect to ground under no-signal
(Page 42)
4040
6-14. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) — • Refer to page 50 for IC Block Diagrams.
WX-C5000
Page 41
WX-C5000
(Page 37)
(Page 37)
(detuned) condition.
no mark : FM
Note:
• Voltage is dc with respect to ground under no-signal
(Page 43)
(Page 42)
4141
6-15. SCHEMATIC DIAGRAM — MAIN SECTION (2/4) —
(Page 40)
Page 42
(Page 41)
(Page 43)
condition.
no mark : FM
() : TAPE PLAY
Note:
• Voltage is dc with respect to ground under no-signal
(Page 40)
4242
6-16. SCHEMATIC DIAGRAM — MAIN SECTION (3/4) — • Refer to page 50 for IC Block Diagrams.
WX-C5000
Page 43
WX-C5000
(Page 41)
(Page 47)
(Page 46)
condition.
no mark : FM
(): AM
Note:
• Voltage is dc with respect to ground under no-signal
4343
6-17. SCHEMATIC DIAGRAM — MAIN SECTION (4/4) — • Refer to page 50 for IC Block Diagrams.
(Page 42)
Page 44
(IC701)C-7
Ref. No. Location
(Q701)C-9
(Q702)C-10
(Q703)D-10
4444
(Q704)C-9
6-18. PRINTED WIRING BOARD — CONTROL SECTION —
WX-C5000
(D701)B-8
(D704)C-10
(D705)C-10
(D706)C-9
D730F-6
D731A-7
Ref. No. Location
• Semiconductor Location
D732F-6
D733B-12
( ) : SIDE B
Page 45
WX-C5000
(Page 36)
4545
(Page 39)
Page 46
(Page 37)
(Page 43)
(detuned) condition.
no mark : FM
Note:
• Voltage is dc with respect to ground under no-signal
6-19. SCHEMATIC DIAGRAM — CONTROL SECTION —
4646
WX-C5000
Page 47
6-20. PRINTED WIRING BOARD — JOG SECTION —
WX-C5000
(Page 39)
6-21. SCHEMATIC DIAGRAM — JOG SECTION —
(Page 43)
47
Page 48
• IC Block Diagrams
IC1 CXD2507AQ (SERVO BOARD)
FOK
MON
MDP
MDS
LOCK
TEST
FILO
FILI
PCO
VSS
AVSS
CLTV
AVDD
BIAS
ASYI
ASYO
ASYE
WDCK
XLON
SPOC
SPOD
63
62
64
1
2
3
4
5
6
7
8
9
10
11
12
13
RF
14
15
16
17
18
19
SERVO AUTO
SEQUENCER
CPU
INTERFACE
14
DIGITAL
PLL
ASYMMETRY
CORRECTOR
5
20 21 22 23 24 25 26 27293031 3228
BCLK
LRCK
PCMD
16K
RAM
GTOP
VDD
CLKO
SPOB
SPOA
58596061
5
SUB CODE
PROCESSOR
EFM
DEMODULATOR
3
ERROR
CORRECTOR
K
S
D
F
C
D
G
P
V
XUGF
X
XLTO
DATO
5657
4
D/A
INTERFACE
3
K
C
F
C2PO
R
CNIN
5455
XROF
SEIN
53
6
MNT3
CLOK
52
MNT1
XLAT
DIGITAL
CLV
DIGITAL
OUT
CLOCK
GENERATOR
51
DATA
50
XRST
49
SENS
48
MUTE
47
SQCK
SQSO
46
45
EXCK
44
SBSO
43
SCOR
42
VSS
41
WFCK
40
EMPH
39
DOUT
C4M
38
37
FSTT
36
XTSL
35
XTAO
34
XTAI
MNTO
33
IC3 BA6796FP-T1
OP IN –
OP IN +
VREF
CH3
28
1
OPOUT
26
27
THERMAL
CTL1CTL2FWDREV
23 4
CH4
CH4-IN
CTL1
SHUT
DOWN
CH1
LEVEL
SHIFT
V/I
TRAY
21
VCC
LEVEL
SHIFT
9
VCC
GND
DRIVE
BUFFER
10
CH5 –
CH2
CH3-IN
2425
LEVEL
SHIFT
LOGIC
5
CTL2
23
6
FWD
CH2-IN
22
78
REV
1920
CH1-IN
DRIVE
BUFFER
DRIVE
BUFFER
11
CH1 +
LEVEL
SHIFT
COM
CH1 –
DRIVE
BUFFER
DRIVE
BUFFER
1213
CH4 +
161718
DRIVE
BUFFER
DRIVE
BUFFER
CH2 +
CH3 +
15
DRIVE
BUFFER
DRIVE
BUFFER
14
CH2 –
CH3 –
48
Page 49
IC2 CXA1782BQ
FE BIAS
PHD 2
363534
37
F
38
E
39
PHD 1
RF IV AMP1
APC
RF IV AMP2
F IV AMP
PHD
33
FE AMP
LD
RF M
32
FOK
RF O
31
LEVEL S
TTL
IIL
FZC COMP
RF I
30292827 26 25
MIRR
IIL DATA REGISTER
TOG1-3
FS1-4 TG1-2 TM1-7 PS1-4
BAL1-3
CP
DFCT
INPUT SHIFT REGISTER
ADDRESS DECODER
OUTPUT DECODER
CB
CC1
TTL
TTL
FOK
CC2
IIL
IIL
24
SENS
C.OUT
23
XRST
22
21
DATA
20
XLT
19
CLK
VCC
18
VEE
TED
LPFI
TEI
ATSC
TZC
TDFCT
BAL2
TOG1
TOG2
WINDOW COMP
E IV AMP
BAL 3
ATSC
TOG3
TE AMP
TG1
FS1
TRACKING
PHASE
COMPENSATION
987
TGU
SRCH
TG2
TM7
TM6
TM5
TM4
TM3
TA M
ISET
17
SL O
16
SL M
15
SL P
14
13
TA O
ISET
TM2
F SET
11
10
TG2
12
FSET
HPF COMP
TZC COMP
DFCT
TM1
DFCT
FS4
2
1
FEI
FEO
FDFCT
43
FGD
FCS PHASE
COMPENSATION
5
6
FLB
FE O
LPF COMP
FS2
FE M
EI
40
BAL1
41
42
43
44
45
46
47
VC
48
49
Page 50
IC1 BU2624FV-E2 (MAIN BOARD)
XIN
XOUT
20
19
VSS
PHASE
DET
I/O
CTL
REFERENCE
DIVIDER
SHIFT REGISTER LATCH
MAIN
COUNT
PRESCALER
IF COUNT
CTL
20BIT COUNT
1
2
CE
CK
4
DA
5
CD
6
7
P0
9
P1
10
P3
18
PD
17
VDD
FMIN
16
AMIN
15
P2
14
13
IFIN
12
SD
P4
11
IC331, 341 NJM4558M-T1
A OUT
A IN–
A IN+
VEE
1
A
+–
2
3
4
B
+–
8
VCC
7
B OUT
6
B IN–
5
B IN+
IC300 CXA2510AQ-T4
PBEQ1
–
PBFB1
31
32
PBRIN1
PBREF1
PBFIN1
VCT
PBGND
PBFIN2
PBREF2
PBRIN2
PBFB2
33
34
35
36
37
38
39
40
F2
VCT
F1
1
PBEQ2
AUXIN1
TAPEIN1
PBOUT1
GND
282930
27
120µ/
70µ
+
–
+
120µ/
70µ
345678 9 10
2
VCC
PBOUT2
X1
+
X1
TAPEIN2
T1
AUXIN2
T2
NR BIAS
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
LPF
+
–
F3
–
+
MSLPF
LINEOUT2
25
DIREF
OFF/B
+
NR
LINEOUT1
24
–
NC
TCH2
NR
OFF/B
PLAY
TCH1
NC
MSSW
21222326
MS
MODE
NR
MODE
DETECT
MS ON/
OFF
20
19
18
17
16
15
14
13
12
11
MSMODE
DRSW
TAPESW
INSW
NRSW
NC
MSOUT
DGND
MSTC
FF
IC620 BA8270F-E2
BUS ON
1
2
RST
BATT
3
4
CLK
5
VREF
6
DATA
GND
78
BUS ON
SWITCH
SWITCH
BATTERY
SWITCH
RESET
14
13
12
11
10
9
VCC
RST
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
50
Page 51
IC350 LC75374E
LVRIN
34
LSELO
35
L4
L3
36
L2
37
L1
38
39
VDD
R1
40
41
R2
R3
42
R4
43
44
RSELO
1
RVRIN
LT3
LT2
+
–
–
+
LT1
–
+
+
–
+
–
DECODERLATCH
+
–
RT1
RT2
RT3
LCOM
+
–
+
–
–
+
–
+
23456 7 8 9
RCOM
LSIN
LTOUT
CONTROL
REGISTER
RSIN
RTOUT
NC
2627282930313233
SHIFT
NC
LSB2
LSB1
NC
2324
25
22
LFIN
+
–
+
+
–
10
11
NC
RSB1
RSB2
–
+
–
–
+
–
+
LFOUT
21
LROUT
20
19
VREF
18
CE
17
DI
16
CL
15
VSS
14
RROUT
RFOUT
13
12
RFIN
IC401 PCM1717E-ST2
1
XTI
2
DGND
3
VDD
4
LRCIN
DIN
BCKIN
ZERO
D/C R
VOUTR
AGND
5
6
7
8
9
10
INTERFACE
5LEVE DAC
LOWPASS FILTER
CMOS
AMP
CONTROL
INPUT
DIGITAL
FILTER
NOISE SHAPER
CLK
5LEVEL DAC
LOWPASS FILTER
CMOS
AMP
MODE
CONT
ROL
20
19
18
17
16
15
14
13
12
11
XTO
CLKO
ML/MUTE
MC/DM1
MD/DM0
RSTB
MODE
D/C L
VOUTL
VCC
IC502 RN5VD23AA-TL
CD
5
RESET
23
1
OUT
VDD
IC600 LB1930M-TLM
VCC
1
BUFFER
NC
2
IN1
IN2
S-GND
3
4
BUFFER
5
CONTROL
CIRCUIT
4
NC
GND
MOTOR
DRIVE
CIRCUIT
NC
10
OUT1
9
8
NC
7
OUT2
P-GND
6
51
Page 52
T
IC802 BA3834F
PEAK
HOLD
68Hz
B.P.F.
1
2
BIASC
VREFC
REGISTER
3
4
RREF
REGISTER
PEAK
HOLD
170Hz
B.P.F.
5
NC
IFOUT
IC680 BA3918-V2
18
PEAK
HOLD
420Hz
B.P.F.
DIFFERENTIAL
AMPLIFIER
6
NC
GND
MULTIPLEXER
REGISTER
7
8
CIN
AIN
PEAK
HOLD
1kHz
B.P.F.
AOU
9
VCC
REGISTER
TEST
1617
PEAK
HOLD
2.4kHz
B.P.F.
NC
15
REGISTER
PEAK
HOLD
5.9kHz
B.P.F.
SEL
13
14
DECODER
REGISTER
C
A
B
NC
1011
12
REGISTER
PEAK
HOLD
14.4kHz
B.P.F.
REGULATOR
OVER VOLTAGE
PROTECT
–
+
2 3
4
1
NC
STB
MODE2
MODE1
5 678 9
ANT
VCC
VDD
AMP
COM
–
+
10
AM
–
+
11
FM
–
+
12
GND
52
Page 53
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
7-1. COVER SECTION
SECTION 7
EXPLODED VIEWS
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
R
Parts Color Cabinet’s Color
#1
• Accessories and packing materials and
hardware (# mark) list are given in
the last of this parts list.
The components identified by
mark 0 or dotted line with mark
R
0 are critical for safety.
Replace only with part number
specified.
R4511-216-073-00 METAL CHIP10K5%1/10W
R4521-216-067-00 METAL CHIP5.6K5%1/10W
R4611-216-073-00 METAL CHIP10K5%1/10W
R4621-216-067-00 METAL CHIP5.6K5%1/10W
R8011-216-049-11 RES-CHIP1K5%1/10W
R7011-216-057-00 METAL CHIP2.2K5%1/10W
R7021-216-075-00 METAL CHIP12K5%1/10W
R7031-216-029-00 METAL CHIP1505%1/10W
R7041-216-097-11 RES-CHIP100K5%1/10W
R7051-216-029-00 METAL CHIP1505%1/10W
R7221-216-295-11 SHORT0
R7241-216-021-00 METAL CHIP685%1/10W
R7251-216-032-00 METAL CHIP2005%1/10W
R7261-216-019-00 METAL CHIP565%1/10W
R7271-216-186-00 RES-CHIP3305%1/8W
R7281-216-295-11 SHORT0
R7401-216-647-11 METAL CHIP6800.5%1/10W
R7411-216-647-11 METAL CHIP6800.5%1/10W
R7421-216-647-11 METAL CHIP6800.5%1/10W
R7431-208-437-61 RES-CHIP1K2%1/10W
IC18-759-448-85 IC BU2624FV-E2
IC3008-752-079-79 IC CXA2510AQ-T4
IC3318-759-100-96 IC NJM4558M-T1
IC3418-759-100-96 IC NJM4558M-T1
IC3508-759-487-82 IC LC75374E
IC5008-759-590-59 IC uPD78058GC-B51-8BT
IC5018-759-363-81 IC XC61AN4002PR
IC5028-759-344-91 IC RN5VD23AA-TL
IC6008-759-527-33 IC LB1930M-TLM
IC6208-759-449-89 IC BA8270F-E2
IC6808-759-347-49 IC BA3918-V2
IC7518-759-690-99 IC TA8268HS
< JACK >
J11-764-808-21 JACK (ANTENNA)
J5001-566-822-41 JACK (REMOTE IN)
R131-216-025-11 RES-CHIP1005%1/10W
R141-216-073-00 METAL CHIP10K5%1/10W
R151-216-061-00 METAL CHIP3.3K5%1/10W
R161-216-073-00 METAL CHIP10K5%1/10W
R171-216-081-00 METAL CHIP22K5%1/10W
R181-216-073-00 METAL CHIP10K5%1/10W
R191-216-073-00 METAL CHIP10K5%1/10W
R201-216-073-00 METAL CHIP10K5%1/10W
R211-216-065-00 RES-CHIP4.7K5%1/10W
R1001-216-097-11 RES-CHIP100K5%1/10W
R11-216-037-00 METAL CHIP3305%1/10W
R21-216-134-00 METAL CHIP2.25%1/8W
R31-216-049-11 RES-CHIP1K5%1/10W
R41-216-049-11 RES-CHIP1K5%1/10W
R51-216-061-00 METAL CHIP3.3K5%1/10W
R61-216-049-11 RES-CHIP1K5%1/10W
R71-216-057-00 METAL CHIP2.2K5%1/10W
R81-216-134-00 METAL CHIP2.25%1/8W
R91-216-057-00 METAL CHIP2.2K5%1/10W
R101-216-073-00 METAL CHIP10K5%1/10W
R1011-216-097-11 RES-CHIP100K5%1/10W
R1021-216-027-00 METAL CHIP1205%1/10W
R1031-216-109-00 METAL CHIP330K5%1/10W
R1041-216-075-00 METAL CHIP12K5%1/10W
R1051-216-079-00 METAL CHIP18K5%1/10W
R1061-216-077-00 RES-CHIP15K5%1/10W
R1311-216-065-00 RES-CHIP4.7K5%1/10W
R1321-216-091-00 METAL CHIP56K5%1/10W
R1331-216-089-11 RES-CHIP47K5%1/10W
R1341-216-113-00 METAL CHIP470K5%1/10W
R1351-216-091-00 METAL CHIP56K5%1/10W
R1361-216-089-11 RES-CHIP47K5%1/10W
R1371-216-073-00 METAL CHIP10K5%1/10W
R1411-216-089-11 RES-CHIP47K5%1/10W
R1501-216-061-00 METAL CHIP3.3K5%1/10W
R1821-216-073-00 METAL CHIP10K5%1/10W
R1831-216-069-11 METAL CHIP6.8K5%1/10W
R1841-216-129-00 METAL CHIP2.2M5%1/10W
R1851-216-033-00 METAL CHIP2205%1/10W
R1861-216-081-00 METAL CHIP22K5%1/10W
R1921-216-073-00 METAL CHIP10K5%1/10W
R1931-216-069-00 METAL CHIP6.8K5%1/10W
R1941-216-129-00 METAL CHIP2.2M5%1/10W
R1951-216-033-00 METAL CHIP2205%1/10W
R1961-216-081-00 METAL CHIP22K5%1/10W
R2001-216-097-11 RES-CHIP100K5%1/10W
R2011-216-097-11 RES-CHIP100K5%1/10W
R2021-216-027-00 METAL CHIP1205%1/10W
R2031-216-109-00 METAL CHIP330K5%1/10W
R2041-216-075-00 METAL CHIP12K5%1/10W
R2051-216-079-00 METAL CHIP18K5%1/10W
R2061-216-077-00 RES-CHIP15K5%1/10W
R2311-216-065-00 RES-CHIP4.7K5%1/10W
R2321-216-091-00 METAL CHIP56K5%1/10W
R2331-216-089-11 RES-CHIP47K5%1/10W
R2341-216-113-00 METAL CHIP470K5%1/10W
R2351-216-091-00 METAL CHIP56K5%1/10W
R2361-216-089-11 RES-CHIP47K5%1/10W
R2371-216-073-00 METAL CHIP10K5%1/10W
R2411-216-089-11 RES-CHIP47K5%1/10W
R2501-216-061-00 METAL CHIP3.3K5%1/10W
R2821-216-073-00 METAL CHIP10K5%1/10W
R2831-216-069-11 METAL CHIP6.8K5%1/10W
R2841-216-129-00 METAL CHIP2.2M5%1/10W
R2851-216-033-00 METAL CHIP2205%1/10W
R2861-216-081-00 METAL CHIP22K5%1/10W
R2921-216-073-00 METAL CHIP10K5%1/10W
R2931-216-069-11 METAL CHIP6.8K5%1/10W
R5381-216-097-11 RES-CHIP100K5%1/10W
R5391-216-085-00 METAL CHIP33K5%1/10W
R5401-216-073-00 METAL CHIP10K5%1/10W
R5411-216-073-00 METAL CHIP10K5%1/10W
R5421-216-089-11 RES-CHIP47K5%1/10W
R2941-216-129-00 METAL CHIP2.2M5%1/10W
R2951-216-033-00 METAL CHIP2205%1/10W
R2961-216-081-00 METAL CHIP22K5%1/10W
R3001-216-080-00 METAL CHIP20K5%1/10W
R3011-216-057-00 METAL CHIP2.2K5%1/10W
R3021-216-061-00 METAL CHIP3.3K5%1/10W
R3031-216-113-00 METAL CHIP470K5%1/10W
R3041-216-073-00 METAL CHIP10K5%1/10W
R3051-216-298-00 METAL CHIP2.25%1/10W
R3311-216-025-11 RES-CHIP1005%1/10W
R5431-216-089-11 RES-CHIP47K5%1/10W
R5441-216-113-00 METAL CHIP470K5%1/10W
R5451-216-097-11 RES-CHIP100K5%1/10W
R5461-216-675-11 METAL CHIP10K0.5%1/10W
R5471-216-675-11 METAL CHIP10K0.5%1/10W
R5531-216-675-11 METAL CHIP10K0.5%1/10W
R5541-216-057-00 METAL CHIP2.2K5%1/10W
R5551-216-073-00 METAL CHIP10K5%1/10W
R5561-216-105-00 RES-CHIP220K5%1/10W
R5571-216-049-11 RES-CHIP1K5%1/10W
R5291-216-089-11 RES-CHIP47K5%1/10W
R5301-216-073-00 METAL CHIP10K5%1/10W
R5311-216-073-00 METAL CHIP10K5%1/10W
R5321-216-057-00 METAL CHIP2.2K5%1/10W
R5331-216-699-11 METAL CHIP100K0.5%1/10W
R5341-216-698-11 METAL CHIP91K0.5%1/10W
R5351-216-698-11 METAL CHIP91K0.5%1/10W
R5361-216-699-11 METAL CHIP100K0.5%1/10W
R6231-216-079-00 METAL CHIP18K5%1/10W
R6241-216-089-11 RES-CHIP47K5%1/10W
R6251-216-073-00 METAL CHIP10K5%1/10W
R6261-216-025-11 RES-CHIP1005%1/10W
R6271-216-025-11 RES-CHIP1005%1/10W
R6281-216-073-00 METAL CHIP10K5%1/10W
R6511-216-025-11 RES-CHIP1005%1/10W
R6521-216-085-00 METAL CHIP33K5%1/10W
R6531-216-041-00 METAL CHIP4705%1/10W
R6548-719-421-24 DIODE MA8039-H-TX
R6551-216-049-11 RES-CHIP1K5%1/10W
R6561-216-079-00 METAL CHIP18K5%1/10W
R6571-216-214-00 RES-CHIP4.7K5%1/8W
R6581-216-214-00 RES-CHIP4.7K5%1/8W
R6591-216-075-00 METAL CHIP12K5%1/10W
R6601-216-081-00 METAL CHIP22K5%1/10W
R6611-216-081-00 METAL CHIP22K5%1/10W
R6621-216-017-00 RES-CHIP475%1/10W
R6801-216-073-00 METAL CHIP10K5%1/10W
R6811-216-073-00 METAL CHIP10K5%1/10W
R31-216-121-11 RES-CHIP1M5%1/10W
R41-216-061-00 METAL CHIP3.3K5%1/10W
R51-216-061-00 METAL CHIP3.3K5%1/10W
R61-216-073-00 METAL CHIP10K5%1/10W
R71-216-009-00 RES-CHIP225%1/10W
R81-216-119-00 METAL CHIP820K5%1/10W
R91-216-119-00 METAL CHIP820K5%1/10W
R101-216-073-00 METAL CHIP10K5%1/10W
R111-216-073-00 METAL CHIP10K5%1/10W
R141-216-085-00 METAL CHIP33K5%1/10W
R151-216-085-00 METAL CHIP33K5%1/10W
R161-216-077-00 RES-CHIP15K5%1/10W
R171-216-081-00 METAL CHIP22K5%1/10W
R191-216-079-00 METAL CHIP18K5%1/10W
R201-216-105-00 RES-CHIP220K5%1/10W
R211-216-105-00 RES-CHIP220K5%1/10W
R221-216-085-00 METAL CHIP33K5%1/10W
R231-216-121-11 RES-CHIP1M5%1/10W
R241-216-073-00 METAL CHIP10K5%1/10W
R271-216-295-11 SHORT0
R281-216-101-00 METAL CHIP150K5%1/10W
R291-216-097-11 RES-CHIP100K5%1/10W
R301-216-097-11 RES-CHIP100K5%1/10W
R311-216-081-00 METAL CHIP22K5%1/10W
R321-216-109-00 METAL CHIP330K5%1/10W
R11-216-073-00 METAL CHIP10K5%1/10W
R21-216-097-11 RES-CHIP100K5%1/10W
R381-216-109-00 METAL CHIP330K5%1/10W
R391-216-101-00 METAL CHIP150K5%1/10W
R401-216-114-00 RES-CHIP510K5%1/10W
R411-216-093-00 RES-CHIP68K5%1/10W
R421-216-101-00 METAL CHIP150K5%1/10W
R431-216-097-11 RES-CHIP100K5%1/10W
R441-216-085-00 METAL CHIP33K5%1/10W
R451-216-081-00 METAL CHIP22K5%1/10W
R461-216-097-11 RES-CHIP100K5%1/10W
R471-216-105-00 RES-CHIP220K5%1/10W
R481-216-073-00 METAL CHIP10K5%1/10W
R491-216-065-00 RES-CHIP4.7K5%1/10W
R501-216-065-00 RES-CHIP4.7K5%1/10W
R511-216-295-11 SHORT0
#17-685-791-09 SCREW +PTT 2.6X5 (S)
#27-685-795-09 SCREW +PTT 2.6X12 (S)
#37-685-793-09 SCREW +PTT 2.6X8 (S)
#47-685-792-09 SCREW +PTT 2.6X6 (S)
#57-624-104-04 STOP RING 2.0, TYPE -E
#67-627-553-37 SCREW, PRECISION +P 2X3 TYPE 3
#77-628-253-15 SCREW +PS 2X5
#87-627-553-17 SCREW, PRECISION +P 2X2 TYPE 3
#97-627-000-00 SCREW, PRECISION +P 1.7X2.2 TYPE 3
#107-627-850-28 SCREW, PRECISION +P 1.4X3
FL7011-517-885-11 INDICATOR TUBE, FLUORESCENT
HP901 1-500-157-21 HEAD, MAGNETIC (PLAYBACK)
M901X-3373-664-2 MOTOR ASSY (SPINDLE)
M902A-3291-674-A MOTOR ASSY, SLED (SLED)
M903A-3291-676-A MOTOR SUB ASSY, LO (LOADING)
M904A-3291-665-A MOTOR ASSY, MAIN (CAPSTAN/REEL)
VR771 1-418-378-12 ENCODER, JOG