Removing the rear cover (See Fig.1 and 2)
1. Remove the nine screws A on the back of the body. 2. Remove the two screws B body. on the bottom of the
Antenna terminal Rear cover
A A
A
3. Unlock the speaker terminal and the antenna terminal, then remove the rear cover backward with releasing the hooks.
A
Side panel (R)
Speaker terminal
Fig.1
B
Rear cover
Removing the side panels (See Fig.3 to 5)
Prior to performing the following procedure, remove the rear cover. 1. Remove the two screws C attaching the side panels on the bottom of the body. 2. Remove each side panel backward while releasing the eight joints a as shown in Fig.4 and 5.
(Bottom)
Side panel (L)
B
Fig.2
C
Side panel (R)
C
Joint a Joint a
Side panel (L)
Fig.3
Joint a Joint a
Side panel (R)
Side panel (L)
Fig.4
Fig.5
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Removing the top panel (See Fig.6 and 7)
Prior to performing the following procedure, remove the rear cover and the side panels. 1. Remove the two screws D on each side of the body. 2. Release the two joints b on each side of the body and remove the top panel in the direction of the arrow. 3. Disconnect the card wires from connector CN705 on the system control board on the left side of the body. Fig.6
D
Joint b
Top panel
Top panel CN705
D
Joint b
System control board
Fig.7
Removing the cassette mechanism assembly section (See Fig.8)
Prior to performing the following procedure, remove the rear cover, the side panels and the top panel. 1. Disconnect each wire from connector CN706, CN715 and CN716 on the system control board on top of the body. 2. Remove the four screws E retaining the cassette mechanism assembly section on top of the body. REFERENCE: Reference: If necessary, remove the spacer marked h and the wire from the Cassette mechanism assembly section.
h (spacer)
E
CN715
E
System control board CN706 CN716
E
Cassette mechanism section
Fig.8
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UX-A52
Removing the system control board (See Fig.9)
Prior to performing the following procedure, remove the rear cover, the side panels and the top panel. 1. Disconnect the card wire from connector CN701 and the wire from connector CN706, CN715, CN716 on the system control board. 2. Remove the screw F on the left side of the body. 3. Disconnect connector CN709, CN711 and CN712 on the system control board from the body outward. 4. Disconnect the card wire from connector CN704 on the underside of the system control board.
CN704 CN716 CN715 CN706 CN712 CN701 CN711
CN709
F
System control board
Fig.9
Removing the tuner board (See Fig.10)
Tuner board
Prior to performing the following procedure, remove the rear cover and the right side panel. 1. Disconnect the card wire from connector CN1 on the tuner board on the right side of the body. 2. Remove the screw G and remove the tuner board upward while disengaging the three joints c.
CN1
G
Joints c
Fig.10
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Removing the front panel assembly (See Fig.11 and 12)
Prior to performing the following procedure, remove the rear cover, the side panels, the top panel and the system control board. 1. Release the two joints d on the lower right and left sides of the front panel assembly, then remove the front panel assembly toward the front. Fig.11 Joint d
Front panel assembly Front panel assembly
Joint d
Fig.12
Removing the headphone jack board (See Fig.13 and 14)
Prior to performing the following procedure, remove the rear cover, the side panels, the top panel, the system control board and the front panel assembly section. 1. Disconnect the wire from connector CN804 on the main board. 2. Remove the plastic rivet fixing the headphone jack board.
Headphone jack board Main board CN804
Fig.13
Plastic rivet Headphone jack board
Fig.14
1-8
UX-A52 Removing the main board / the heat sink (See Fig.15 to 17)
Prior to performing the following procedure, remove the rear cover, the side panels, the top panel, the cassette mechanism assembly section and and the system control board. 1. Disconnect the wire from connector CN804 on the main board. 2. Remove the five screws H attaching the cassette mechanism bracket. 3. Remove the screw G attaching the grounding terminal extending from the main board. 4. Disconnect connector CN805 on the main board from the AC jack board while pulling out it. Remove the main board in the direction of the arrow and disconnect the wire from connector CN803 on the reverse side of the main board. 5. Remove the three screws I attaching the heat sink on the reverse side of the main board.
Main board CN804 CN805 CN803
H
Main board CN804
H
Cassette mechanism bracket
Fig.15
Tuner board
G
Fig.16
Heat sink
I
Main board
Fig.17
1-9
UX-A52 Removing the AC jack board (See Fig.18 and 19)
Prior to performing the following procedure, remove the rear cover, the side panels, the top panel, the cassette mechanism assembly section, the system control board and the main board / the tuner board. 1. Disconnect the wire from connector CN809 on the AC jack board. 2. Remove the screw J and screw K attaching the AC jack board. Fig.18
Power transformer assembly AC jack board CN809
CN809
J K
AC jack board
Fig.19
Removing the power assembly (See Fig.20)
transformer
Power transformer assembly
L
AC jack board CN809
Prior to performing the following procedure, remove the rear cover, the side panels, the top panel, the cassette mechanism assembly section, the system control board and the main board.
Band
1. Disconnect the wire from connector CN809 on the AC jack board. 2. Cut off the band setting the wire on the CD mechanism cover. 3. Remove the four screws L transformer assembly. attaching the power
L
Fig.20
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Removing the CD mechanism assembly (See Fig.21 to 23)
Prior to performing the following procedure, remove the rear cover, the side panels, the top panel, the cassette mechanism assembly section, the system control board, the front panel assembly section, the main board / the tuner board and the AC jack board. 1. Cut off the band setting the wire on the CD mechanism cover. 2. Release the wire extending from the headphone jack board from the spacer and the three notches of the CD mechanism cover on the left side of the body. 3. Remove the four screws M on the left and right side of the CD mechanism cover. Then remove the CD mechanism cover upward.
CD mechanism cover
CD mechanism assembly Spacer
Band
Notch
M
Notches
Fig.21
CD mechanism cover
4. Remove the three screws N mechanism assembly.
attaching the CD
CD mechanism assembly Band
M
Fig.22
N
N
CD mechanism assembly
Fig.23
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Prior to performing the following procedure, remove the rear cover, the side panels, the top panel, the system control board and the front panel assembly section.
CN907
O
Removing the relay board (See Fig. 24)
1. Disconnect the wire from connector CN906, CN907 and the card wire from CN908 on the relay board respectively. 2. Remove the two screws O.
CN908
Relay board CN906
O
Fig.24
Removing the drive motor assembly (See Fig.25)
Prior to performing the following procedure, remove the relay board. 1. Remove the four screws P attaching the drive motor assembly.
Drive motor assembly
P
Door switch board
Removing the belt and the drive motor (See Fig.26)
REFERENCE: The belt and the drive motor can be removed respectively without removing the drive motor assembly from the front panel section.
P
Fig.25
1. Remove the two screws Q attaching the plate. 2. Remove the belt from the two pulleys. 3. Remove the two screws R attaching the drive motor.
Belt Plate
REFERENCE: When removing the drive motor only, remove the belt from the drive motor pulleys in advance.
Drive motor
R
Fig.26
Q
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UX-A52
Removing the door switch board (See Fig.27 and 28)
Prior to performing the following procedure, remove the relay board. 1. Loosen the screw S attaching the door switch. 2. Remove the door switch board while releasing it from the joint e.
Drive motor assembly
S
Door switch board
Joint e
Fig.27 CAUTION: When reattaching the door switch board, fit it to the joint e and check the operating state of the switch before tightening the screw S.
S
Door switch board
Removing the LCD section (See Fig.29 to 31)
Prior to performing the following procedure, remove the relay board. 1. Loosen the two screws T attaching the lock lever. 2. Push the part f of the lock lever in the direction of the arrow as shown in Fig.30-1 / 30-2 and disengage the LCD section from the front panel assembly.
Switch section Joint e
Fig.28
Lock lever Lock lever
T
CAUTION: Because the LCD may come off, hold it when loosening the screws T.
T
Front panel assembly
Fig.29
Front panel assembly LCD section Lock lever f Lock lever f Joint f
Fig.30-1
Fig.30-2
Joint f
Fig.31
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Removing the LCD board assembly (See Fig.32 to 36)
Prior to performing the following procedure, remove the relay board and the LCD section. 1. Remove the four screws U attaching the case cover. 2. Remove the four screws V attaching the LCD panel on the back of the LCD section. 3. Remove the LCD cover. Fig.32 4. Release the three joints g and remove the LCD board assembly in the direction of the arrow.
U
Case cover
U
U
U
LCD section
V
V
LCD panel
Fig.33
Fig.34
Joint g
Joint g Joint g
LCD cover LCD board assembly
Fig.35
Fig.36
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Prior to performing the following procedure, remove the rear cover, the side panels and the top panel.
W
Operation switch board
Removing the operation switch board (See Fig.37)
1. Remove the seven screws W attaching the operation switch board on the reverse side of the top panel.
W
W
Cassette amplifier board
Fig.37
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Removing the CL. Base Assembly and Tray (Refer to Figs. 1 to 5.)
1. Remove the two screws A fastening the CL. base assembly from the top of the CD mechanism assembly. 2. Move the CL. base assembly diagonally upwards as indicated by the arrow to release it from the two hooks a. 3. Turn the idle gear in the arrow-marked direction from the upper side of the CD mechanism assembly. Accordingly, the TRAMECHA assembly moves downwards.
A
CL. base assembly Hook a
A
Hook a
Fig. 1
Idle gear
Note: When drawing out the tray, shift down the TRAMECHA assembly to the position where the tray does not contact the T-T assembly of the TRAMECHA assembly. 4. Draw out the tray frontwards for removing it. Note: When reinstalling the tray: Turn the idle gear so that the part b of the tray gear is positioned in the part c shown in Fig. 4. (Eject position) Engage the right and left hooks d and e of the tray with the right and left grooves of the TRAMECHA assembly respectively for retaining the tray.
TRAMECHA assembly
Tray
Fig. 2
TRAMECHA assembly
Idle gear Tray Idle gear
Fig. 3
Tray gear
Hook d
Hook d
Part c
Tray
Tray gear
Part b
Fig. 5
1-16
Fig. 4
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Removing the TRAMECHA Assembly (Refer to Figs. 6 to 9.)
Remove the CL. base assembly and tray. Reference: The TRAMECHA assembly can be removed without removal of the mechanism board.
TRAMECHA 1. If the TRAMECHA assembly is lowered and it is located out of the PLAY position, turn the idle gear assembly in the arrow-marked direction so that the hole in the part f of the tray gear meets the hole on the CL. base assembly. (Set the TRAMECHA assembly at the PLAY position.) Idle gear
B
B
Tray gear
2. Remove the three screws B fastening the TRAMECHA assembly and then remove the TRAMECHA assembly upwards from the front side.
3. At the same time, remove the spring from the groove of the CH. base assembly in the part g of the TRAMECHA assembly.
Part g
B
Fig. 6
Tray gear
Note: When reinstalling the TRAMECHA assembly: Check to see if the spring is properly engaged with groove of the CH. base assembly in the part g of the TRAMECHA assembly. After making sure that the three insulators of the TRAMECHA assembly are properly set on the bosses of the L. base assembly's guide, fasten them with the screws.
Part f
L. base assembly
Fig. 7
Spring Part g
Fig. 8
Spring
Groove of CH. base assembly
Fig. 9
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Removing the Mechanism Board (Refer to Fig 10.)
Reference:The mechanism board can be removed without removal of the TRAMECHA assembly.
C
Flexible wire
Shorting round
Note: Before disconnecting the flexible wire coming from the pickup from the connector, be sure to solder its shorting round. If the flexible wire is connected without soldering, it may cause breakdown of the pickup. 1. Solder the shorting round of the flexible wire connected with the mechanism board from the back of the mechanism assembly. 2. Disconnect the flexible wire from the connector CN601 on the mechanism board. 3. Remove the three screws C fastening the mechanism board. 4. Unsolder the two points of the part h and one point of the part i of the mechanism board. Then, remove the mechanism board upwards. Note: When reinstalling the mechanism board, connect the flexible wire coming from the pickup to the connector first and then remove the solder from the shorting round of the flexible cable.
Soldered part h
CN601 on mechanism board
C
C
Soldered part i
Fig. 10
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Removing the Pickup (Refer to Figs. 11 to 14.)
Remove the CL. base assembly and tray. Remove the TRAMECHA assembly. Reference: The pickup can be removed without removal of the mechanism board.
CN601 on mechanism board Flexible wire Shorting round
Note: Before disconnecting the flexible wire coming from the pickup from the connector, be sure to solder its shorting round. If the flexible wire is connected without soldering, it may cause breakdown of the pickup. 1. Solder the shorting round of the flexible wire connected with the mechanism board from the back of the TRAMECHA assembly. 2. Disconnect the flexible wire from the connector CN601 on the mechanism board. 3. Turn the idle gear in the arrow-marked direction from the top of the TRAMECHA assembly so that the pickup assembly is shifted to the reverse side of the T-T assembly. Move the pickup assembly until the part j of the rack plate in the lower part of the pickup assembly comes out of the CH. base assembly. 4. Remove the two screws D retaining the shaft of the pickup assembly. Next, disengage the hook k from the CH. base assembly and then remove the pickup assembly together with the shaft. 5. Pull the shaft out of the pickup. 6. Remove the two screws E fastening the rack plate from the pickup. 7. Remove the screw F retaining the P.S. spring from the pickup.
CH. base assembly Part j of rack plate
Fig. 11
T-T assembly Pickup assembly
Idle gear
Fig. 12
D
Pickup assembly Part k CH. base assembly
D
Fig. 13
Shaft Pickup
Part j P.S. spring Rack plate
F E
Fig. 14
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Reinstalling the Pickup Assembly (Refer to Figs. 15 and 16.)
Reference: Refer to the explanation of "Removing the Pickup" on the preceding page. 1. Fit the P.S. spring and rack plate to the pickup. 2. Insert the shaft into the pickup. 3. Engage the hook k of the pickup assembly with the CH. base assembly first, and set the part j of the rack plate in the opening I next. Then, reinstall the pickup assembly while shifting it to the T-T side (inward) so that the part m of the rack plate is positioned as shown in Fig. 16. 4. Move the pickup assembly to the center position and fasten the shaft with the two screws D. (Make sure that the part n of the rack plate is correctly engaged with the middle gear.) 5. After passing the flexible wire coming from the pickup through the opening of the CH. base assembly, connect it to the connector CN601. Note: When reinstalling the pickup assembly, remove the solder from the shorting round after connecting the flexible wire coming from the pick to the connector CN601.
Part n Rack plate Pickup assembly Part k Part j
Part I
CH. base assembly
Fig. 15
Part m
Middle gear
Fig. 16
Removing the Feed Motor Assembly (Refer to Fig. 17.)
Remove the CL. base assembly and tray. Remove the mechanism board. Remove the two screws E fastening the feed motor assembly from the top of the mechanism assembly.
E
Feed motor assembly
Fig. 17
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CAUTION: Prior to performing the following procedures, turn the mode gear in the direction of the arrow to move each section to the eject position.
Load arm
E-washer
Removing the side bracket (L) and (R) / load board (See Fig.1 to 4)
1. Remove the E-washer attaching the load arm on the right side of the body. 2. Turn the load arm in the direction of the arrow to release from the cassette hook at the joint a.
Hole b Joint a Load arm
Fig.1
Slide bracket
3. Remove the spring (1) attaching the trig lever. 4. Move the trig lever in the direction of the arrow and release it from the two holes b. 5. Remove the screw A attaching the load board on the right side of the body and unsolder the wire extending from the sub motor. REFERENCE: The side bracket unit (R) can be removed even if the load board is attached. In such case, make sure to unsolder the wire extending from the sub motor.
Hole b Spring (1)
Fig.2
6. Remove the spring (2) and the holder collar on the right side of the body. 7. Remove the two screws B attaching the side bracket unit (R) in the direction of the arrow. 8. Remove the four screws C attaching the side bracket (L) in the direction of the arrow.
Load board Soldering
A
Fig.3
C
Side bracket unit (L)
Cassette hanger assembly
C B
C
Spring (2)
C B
Side bracket unit (R)
Holder collar
Fig.4
1-21
UX-A52 Removing the cassette hanger assembly / cassette holder (See Fig.5)
Prior to performing the following procedure, remove the side bracket (L) and (R). 1. Remove the slit washer attaching the cassette hanger assembly and pull out the pin. 2. Move the cassette hanger assembly in the direction of the arrow to release the boss of the joint c on the left rear side and detach the cassette hanger assembly upward. REFERENCE: The cassette hanger assembly is detached with the cassette holder.
Pin Cassette hanger assembly Cassette holder
E-washer
Fig.5
Removing the pinch roller (F) and (R) (See Fig.6 to 8)
Prior to performing the following procedure, remove the side bracket (L), (R), cassette hanger assembly / cassette holder. 1. Release the tab d in the direction of the arrow and pull out the pinch roller upward.
Pinch roller (F) Pinch roller (R)
REFERENCE: The above method is for removing the pinch roller (F) and (R).
Fig.6
Pinch roller (F)
Pinch roller (R)
Tab d
Tab d
Fig.7
Fig.8
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UX-A52
Removing the head assembly / head board (See Fig.9 and 10)
Prior to performing the following procedure, remove the side bracket (L), (R), cassette hanger assembly / cassette holder. 1. Remove the spring on the lower side of the head assembly. 2. Remove the two screws D and remove the head assembly upward. 3. Remove the screw E attaching the head board. Unsolder the flexible wire extending from the head assembly if necessary. Fig.9
Head assembly Head assembly
D
D
Head board
E
Fig.10
Soldering
Removing the flywheel assembly (F) and (R) (See Fig.11 and 12)
Prior to performing the following procedure, remove the side bracket (L), (R), cassette hanger assembly / cassette holder. 1. Remove the belt and sub belt on the bottom of the body.
Sub belt
Belt
2. Remove the polywasher from the flywheel (F) and (R) on top of the body. Flywheel assembly (R) 3. Pull out the flywheel (F) and (R).
Flywheel assembly (F)
Fig.11
Polywasher
Polywasher
Fig.12
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Adjustment Method
1. Jigs and test instruments
Test disc (CTS-1000) Test tape (VT712) Test tape (VT703) Test tape (AC225)
2. Adjustment and check items
1) Indications in the modes that all LCD's are on 2) CD section (1) Indication of the C1 error (2) Cancel of the C1 error indication
3. Adjustment and check method
1) CD section (1) Indication of the C1 error While pressing both the POWER key and BACK SKIP key on the main unit, turn on the primary power supply. FL indication CRC = 0 Press the CD OPEN/CLOSE key and insert the test disk. Press the CD PLAY key. The set starts counting and the number of error correction times is indicated every 10 seconds. 200 Hz or less
FL indication CRC = ***
(2) Cancel of the C1 error indication To cancel the C1 error indication, cut off the power supply.
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Cassette section
Playback/Recording & eraser head Head azimuth adjusting screw (Forward side) Head azimuth adjusting screw (Reverse side)
Head azimuth Head azimuth adjusting screw adjusting screw (Reverse side) (Forward side) Playback/Recording & eraser head
Removing the Cassette Mechanism Assembly Remove the rear cover. Remove the side panels (right and left). Remove the cassette mechanism assembly. Remove the four screws S fastening the cassette mechanism assembly from the back of the cassette mechanism. 5. Press the EJECT button on the front side of the cassette mechanism assembly to open the cassette door, and then remove the cassette mechanism assembly. 1. 2. 3. 4.
BIAS TEST POINT
GND
PCB
FMB
1-25
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Check and adjustment of the Head amplifier section
Item
1. Head azimuth adjustment
Check/Adjustment Method
1) Play back the end part of the test tape VT703 (10 kHz). 2) Adjust the head azimuth screws so that the output becomes maximum in both the normal and reverse directions. After adjustment, lock the screws with screw bond without fail. Measuring output terminal: Speaker terminal, 4 load resistance Difference between L-ch and R-ch: Within 3 dB Difference between FWD and REV directions: Within 4 dB Adjust max level in FWD and REV. After adjusting, should be Applied bond (THREEBOND 1401 A/C) to screw. Azimuth screw Screw for REV Neji Lock Azimuth for FWD Neji Lock
Adjusting Point
Head azimuth screw
Standard Value
Maximum output
(0 )
phase
(45 )
2. Tape speed adjustment (Reference value) Speed difference between the normal and reverse directions Wow and flutter
1) Play back the end part of the test tape VT712 (3 kHz). 2) Adjust VR37 so that the frequency counter reads 3000 in playback in the normal direction.
15 Hz
VR37
3000
15Hz
Measuring output terminal: Speaker terminal Make sure that speed difference between the normal and reverse directions is 60 Hz or less by reading of the frequency counter. (With the beginning part of the test tape) Play back the end part of the test tape VT712 (3 kHz). Make sure that the wow and flutter meter reads 0.25 % (WRMS) or less. 1) Set a blank cassette tape (Type I: AC225) and enter the set into the recording pause mode. 2) Cancel the pause mode and start recording. Repeat to input the 1 kHz and 10 kHz reference signals alternately from the CD test disk to record the signals on the blank tape. 3) While playing back the repeatedly input 1 kHz and 10 kHz reference signals, adjust VR31 so that output level of 10 kHz signals is +2 dB 1 dB of 1 kHz. 1) Set a blank cassette tape (Type I: AC225) and enter the set into the recording pause mode. 2) Make sure that the bias frequency at the bias test point (Refer on 1-25 board drowing) on the head amplifier board is 70 9 kHz. 1) Set a blank cassette tape (Type I: AC225) and enter the set into the recording pause mode. 2) After connecting a 1 resistor to the erasing head in series, cancel the pause mode and start recording. Connect the electronic voltmeter to both the terminals and measure the erasing current.
60 Hz or less
0.25 % (WRMS) or less
3. Recording / playback frequency characteristic adjustment
VR31 -1dB 1dB
(Reference value) Recording bias frequency
70
9kHz
(Reference value) Erasing current
Erasing current: 60 mA (Type I tape)
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Extension code connecting method
System control board (CN706, CN715, CN716) Cassette mechanism assembly
QUQ110-1940BJ
CD mechanism assembly CD servo control board (CN651) System control board (CN704)
Extension wire
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Flow of functional operation until TOC read (CD)
Check Point
Power ON
Power Key
Slider turns REST SW ON.
Automatic tuning of TE offset
Check to see if the voltage at the pin 72 of IC701 or pin 5 of CN602 becomes 0 V for an instant. (The moment the switch is turned on, the voltage becomes 0 V.)
Laser ON
Make sure of the H level at the pin 40 of IC603.
Detection of disc
Automatic tuning of Foucus offset Confirm that the Focus error S-curve siganl at the pin28 of IC603 is approx.2Vp-p Confirm that the siganl from pin24 IC603 (R645) is 0V as a accelerated pulse during approx.400ms.
Automatic measurement of Focus A-curve amplitude
Disc is rotated
Tracking error waveform at TOC reading Approx.3sec
pin 25 of IC601(TE)
Focus servo ON (Tracking servo ON)
Approx 1.8V VREF
Automatic measurement of Tracking error amplitude
Tracking Disc to be servo braked to stop on statas TOC reading finishes Automatic measurement of TE amplitude and automatic tuning of 500mv/div TE balance 2ms/div Fig.1 Tracking servo off statas
Disc statas to rotate
Automatic tuning of Tracking error balance
Make sure that the TE signal (1.8 Vp-p approx.) indicating the tracking servo off status is output from the pin 25 (one side of R609) of IC601.
Automatic tuning of Focus error balance
Automatic tuning of Focus error gain
Automatic tuning of Tracking error gain
TOC reading
Confirm the eys-pattern at the lead of TP602
Play a disc
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Maintenance of laser pickup
(1) Cleaning the pick up lens Befor you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode (Fig.1) When the life of the laser diode has expired, the following symptoms wil appear. (1) The level of RF output (EFM output:ampli tude of eye pattern) will below.
Replacement of laser pickup
Turn off the power switch and,disconnect the power cord from the ac outlet.
Replace the pickup with a normal one.(Refer to "Pickup Removal" on the previous page)
Is RF output 1.25 0.22Vp-p?
NO Replace it.
Plug the power cord in,and turn the power on. At this time,check that the laser emits for about 3seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly.
YES O.K (Fig.1) Check the eye-pattern at TP602. Play a disc.
(3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value,the laser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor is adjusted while the pickup is functioning normally,the laser pickup may be damaged due to excessive current.
Finish.
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Description of major ICs
UPD784216AGF (IC701) : System micon
1. Pin layout 1 100 76 75
25 26 2. Block diagram
INTP2/NMI INTP0.INTP1. INTP3-INTP6 TI00 TI01 TO0 TI1 TO1 PROGRAMMABLE INTERRUPT CONTROLLER TIMER/EVENT COUNTER (16BITS) TIMER/EVENT COUNTER1 (8BITS) TIMER/EVENT COUNTER2 (8BITS) TIMER/EVENT COUNTER5 (8BITS) TIMER/EVENT COUNTER6 (8BITS) TIMER/EVENT COUNTER7 (8BITS) TIMER/EVENT COUNTER8 (8BITS)
51 50
UART/IOE1 BAUD-RATE GENERATOR UART/IOE2 BAUD-RATE GENERATOR CLOCKED SERIAL INTERFACE
RxD1/SI1 TxD1/SO1 ASCK1/SCK1 RxD2/SI2 TxD2/SO2 ASCK2/SCK2 SI0 SO0 SCK0 AD0-AD7 A0-A7 A8-A15
TI2 TO2
TI5/TO5
BUS I/F
A16-A19 RD WR
TI6/TO6
78K/1V CPU CORE
ROM 128K BITS PORT0 PORT1 PORT2 PORT3 PORT4
WAIT ASTB P00-P06 P10-P17 P20-P27 P30-P37 P40-P47 P50-P57 P60-P67 P70-P72 P80-P87 P90-P95 P100-P103 P120-P127 P130.P131 RESET X1
TI7/TO7
TI8/TO8
WATCH TIMER
RAM 8192BITS PORT5 PORT6
WATCHDOG TIMER
PORT7 PORT8
RTP0-RTP7
REAL-TIME OUTPUT PORT PORT9 PORT10 D/A CONVERTER PORT12 PORT13 A/D CONVERTER
ANO0 ANO1 AVREF1 AVSS ANI0-ANI7 AVREF0 AVD0 AVSS
P03/INTP3
PCL
CLOCK OUTPUT CONTROL
SYSTEM CONTROL
X2 XT1
BUZ
BUZZER OUTPUT
XT2 VDD VSS TEST
1-30
UX-A52
3. Pin function (1/2) Pin No. 1 2 3 4 5 6 7 8 9 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 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Symbol FAUX2 NC RDSDATA MPX TUST NC FTUNER FCD VDD NC PBMUTE NC PIN LEDCTL BUZER MDPOUT MDRESET SMUTE NC NC POUT VPP UP RMT0 RMT1 MIDDLE DOWN RMSPEED VOLCK VOLCE VOLDA AHB BUB BTCL NC XKILL VDD X1 X2 VSS XT2 XT1 RESET REM RDSCK NC PHOTO SAFTEY4 NC NC I/O I I O O O O I O O O O O O I I O O I I O O O O O I O O I/O I I O I O I I I I I Description Not connected Not connected Not connected Stereo detection Stereo indicator detection Not connected Tuner switch output CD switch output Connected with VDD Not connected PB mute output Not connected Power key input LED control output Buzzer output MD PB output MD reset output System mute output Not connected Not connected Power-on control output GND Door position detection - UP Door open/shut motor control output Door open/shut motor control output Door position detection - MIDDLE Door position detection - DOWN Door open/shut motor speed control output Volume control clock Volume control chip enable Volume control data Active hyper bus control Backup detection Battery control Not connected Power-off clock oscillator control Power supply Master clock Master clock GND Clock for timer Clock for timer Power-on reset Remote control sensor Not connected Not connected Reel pulse detection Current detection Not connected Not connected
1-31
UX-A52
3. Pin function (2/2) Symbol Pin No. 51 AVREF 52 AVREF0 53 SEFTY2 54 SEFTY3 55 LDCK 56 FKEY1 57 VERSION 58 FKEY2 59 KEY1 60 SEFTY1 61 VSS 62 RCDL 63 BCDL 64 AVREF1 65 RXD 66 TXD 67 NC 68 CDRXD 69 CDTXD 70 CDRST 71 GCDL 72 NC 73 TUDATA 1 74 TUDATA 75 TUCK 76 NC 77 NC 78 NC 79 NC 80 NC 81 NC 82 NC 83 NC 84 NC 85 NC 86 NC 87 NC 88 SCL 89 CS 90 RESET 91 SDA 92 NC 93 RS 94 NC 95 NC 96 SDATA 97 SCK 98 STTA 99 PLAY 100 VSS I/O I I I I I/O I I I I I I O O I I O I O O O I O O O O O I/O I I/O I/O I/O O I Description Reference power supply +5 V Reference power supply +5 V Current detection Current detection Function switch key input Destination switch input Function switch key input Cassette key input Current detection GND LED color display control LED color display control Reference power supply +5 V Digital input Digital output Not connected CD digital input CD digital output CD reset LED color display control Not connected Tuner data Tuner data Tuner clock Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected LCD clock LCD power supply LCD reset LCD serial data Not connected LCD start Not connected Not connected Cassette control serial data Cassette control serial clock Cassette control status signal Cassette PB switch detection GND
UPD784216AGF(2/2)
1-32
UX-A52
AN22000A-W (IC601) : RF head amp.
1. Pin layout
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
2. Block diagram
3TOUT CEA FEOUT NRFDET FEN
TEN TEOUT
TEBPF VDET
LD
PD
21
22
23
20
15
19
10
18
9
2
COFTR OFTR
1 24 GCTL 26 25 TBAL FBAL 16 GND 3 VCC
14
3TENV
OFTR
BCDO BDO
13
SUBT
RFOUT CAGC RFIN ARF
11
BDO
BCA
BCA
BCA
SUBT
12
7
AGC
NRFDET
GCA
GCA
GCA
5
RF_EQ
AMP
AMP
AMP
RFN
4
32
30
31
29
27
28
AMP
GCA
6
BCA
8
VDET
A
C
B
D
E
F
VREF
3. Pin function
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin No. Function 17 APC amp input terminal. 18 APC amp output terminal. 19 Power supply. 20 RF amp negative input terminal. 21 RF amp output terminal. 22 AGC input terminal. 23 AGC loop filter capacitor connection terminal. 24 AGC output terminal. 25 Capacitor connection terminal for HPF-amp. 26 3TENV output terminal. 27 Capacitor connection terminal for RF enberope detection. 28 BDO output terminal. 29 Capacitor connection terminal for RF enverope detection. 30 OFTR output terminal. 31 NRDET output terminal. 32 Ground terminal. Function VREF output terminal. VDET output terminal. VDET input terminal. TE amp. output terminal. TE amp. negative input terminal. FE amp. negative input terminal. FE amp. output terminal. GCTL & APC terminal. FBAL control terminal. TBAL control terminal. Tracking signal input terminal 1. Tracking signal input terminal 2. Focus signal input terminal 4. Focus signal input terminal 3. Focus signal input terminal 2. Focus signal input terminal 1.
17
1-33
UX-A52
UPD780024AGKB21 (IC251) : Unit micon
1. Pin layout 64 1 ~ 16 17 ~ 49 48 ~ 33 ~ 32
2. Pin function (1/2) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Symbol P50/A8 P59/A9 MCS MRDY CDINDEX CDEMP CDTNO CDCOPY VSS0 VDD0 P30 P31 P32 MUTE SUBQ P35/SO31 SQCK KCMND MSTAT MCLK RXDO TXDO P25/SCK0 VDD1 AVSS KEY1 KEY2 PCHK P14/AN14 P13/AN13 /OPEN /REST I/O I I I O I O O O I I O I I I I I Description Connected to GND Not used Pull-up +B Not used Not used CD emphasis detection CD track No. detection CD copy detection GND Power supply Not used Not used Not used Mute output Sub-code Q data input from IC651 Not used Sub-code Q register clock output to IC651 Kick command data CD control status output to IC801 CD control command clock input from IC801 Digital data input Digital data output Connected to GND Power supply GND Key input 1 Key input 2 Parity check Connected to GND Connected to GND Open switch input Rest switch input
1-34
UX-A52
2. Pin function (2/2) Pin No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Symbol P10/AN10 AVREF AVDD /RESET XT2 XT1 IC X2 X1 VSS1 FLAG BLKCK /RFDET EQx2 EQx4 VCOx4 OPEN /CLOSE IREFx4 P75/BUZ /RESET STAT /DMUTE /P.ON MLD MDATA MCLK CLKSW JIG JIG JIG JIG I/O I O I I I O O I I O O I O O O O O Function Connected to GND Analog circuit reference voltage. Connected with analog circuit power supply Analog circuit power supply CD control reset input from IC801 Not used Connected with power supply Flash memory control Connected with external crystal oscillator Connected with external crystal oscillator GND Flag signal input from IC651 Sub-code block clock signal input from IC651 RF signal amplitude detection input 2 equalizer switch output 4 equalizer switch output Not used Open door detection Closed door detection 4 DSP current switch output Not used Reset signal output to IC651 (L: Reset) Status signal input from IC651 Muting output to IC651 Power on/off switch signal output to IC291 Microcomputer command load signal output to IC651 Microcomputer command data output to IC651 Microcomputer command clock signal output to IC651 Not used Not used Not used Not used Connected to GND
1-35
UX-A52
LC75345M-X (IC702) : E.volume
ROPOUT RBASS2 RBASS1 ROOUT RTRE RINM RINP VDD RSB
1. Pin layout
CL
RSELO
RVRIN
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
1
DI
2
CE
3
VSS
4
LOPOUT
5
LINM
6
LINP
7
LOUT
8
LSB
9
LBASS2
10 11 12 13 14 15 16 17 18
LTRE LVRIN L5 L4 L3 L2 LBASS1 LSELO L1
2. Block diagram
Vref
R5
R4
R3
R2
LOUT
R1
LBASS1 10
LBASS2
LSELO 13
LVRIN 12
LTRE 11
LSB
7
9
8
14 15 16 17 18 19 20 21 22 23 24 27 RTRE 30 RSB 28 RBASS1 29 RBASS2 26 RVRIN 25 RESLO 31 ROUT
RVref LVref CONTROL CIRCUIT LOGIC CIRCUIT CONTROL CIRCUIT CCB INTERFACE
L5 L4 L3 L2 L1 Vref R1 R2 R3 R4 R5
LINP LINM LOPOUT VSS CE DI CL VDD ROPOUT RINM RINP
6 5 4 3 2 1 36 35 34 33 32
1-36
UX-A52
3. Pin function Pin No. 1 2 3 4 5 6 7 8 9 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 36 Symbol DI CE VSS LOPOUT LINM LINP LOUT LSB LBASS2 LBASS1 LTRE LVRIN LSELO L5 L4 L3 L2 L1 Vref R1 R2 R3 R4 R5 RSELO RVRIN RTRE RBASS1 RBASS2 RSB ROUT RINP RINM ROPOUT VDD CL Function Serial data and clock input pin for control. Chip enable pin. Ground pin. Output pin of general-purpose operation amplifier. Non-inverted input pin of general-purpuse operation amplifier. Non-inverted input pin of general-purpuse operation amplifier. ATT + equalizer output pin. Capacitor and resistor connection pin comprising filters for bass and super-bass band. Capacitor and resistor connection pin comprising filters for bass and super-bass band. Capacitor and resistor connection pin comprising filters for bass and super-bass band. Capacitor and resistor connection pin comprising treble band filter. Volume input pin. Input selector output pin. Input signal pin. Input signal pin. Input signal pin. Input signal pin. Input signal pin. 0.5 x VDD voltage generation block for analog ground. Input signal pin. Input signal pin. Input signal pin. Input signal pin. Input signal pin. Input selector output pin. Volume input pin. Capacitor connection pin comprising treble band filter. Capacitor and resistor connection pin comprising filter for bass and super-bass band. Capacitor and resistor connection pin comprising filter for bass and super-bass band. Capacitor and resistor connection pin comprising filter for bass and super-bass band. ATT + equalizer output pin. Non inverted input pin of general-purpose operation amplifier. Non inverted input pin of general purpose operation amplifier. Output pin of general-purpose operation amplifier. Supply pin. Serial data and clock input pin for control.
1-37
UX-A52
MN662790RSC (IC651) : Digital servo & processor
1.Pin layout 60 61 41 40
80 1 2.Pin function
Pin No. 1 2 3 4 5 6 7 8 9 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 36 37 38 39 40 Symbol BCLK LRCK SRDATA DVDD1 DVSS1 TX MCLK MDATA MLD SENSE FLOCK TLOCK BLKCK SQCK SUBQ DMUTE STAT LSI_RST SMCK CSEL TEST2 TVD PC ECM ECS VDETMON TRD FOD VREF FBAL TBAL FE TE RFENV TEST3 OFT TRCRS RFDET BDO LDON
21 20
MN662790RSC (1/2)
I/O O O O O I I I O I O I O I O I O O O O O O O I I I I I I I I -
Description Bit clock output for SRDATA Identifying signal output of L,R Serial data output Power supply for digital circuit Connect to ground for digital circuit Digital audio interface output signal Micom command clock signal input Micom command data signal input Micom command load signal input L:load Non connect Non connect Non connect Sub code block clock signal (Command execution : CD-TEXT data readout enabling signal (DQSY) output) Export clock signal input for sub code Q resister Sub code Q data output Muting input H:muting Status signal output Reset signal input L:reset Clock signal output MSEL is H : 8.4672 MHz MSEL is L : 4.2336 MHz Oscillation frequency specification terminal H:33.8688 MHz L:16.9344 MHz TEST2 terminal usually : open Traverse drive output Non connect Spindle motor drive signal output (Compulsion mode output) Spindle motor drive signal output (Servo error signal output) Non connect Tracking drive signal output Focus drive signal output Reference voltage for DA output section Focus balance adjust signal output Tracking balance adjust signal output Focus error signal input (analog input) Tracking error signal input (analog input) RF Envelope signal input (analog input) TEST3 Terminal usually : Fixation L Off track signal input H : off track Track cross signal input (analog input) RF detection signal input L : detection Dropout signal input H : dropout Non connect
1-38
UX-A52
2.Pin function
Pin No. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Symbol PLLF2 DSLBDA WVEL ARF IREF DRF DSLF PLLF VCOF AVDD2 AVSS2 EFM DSLB VCOF2 SUBC SBCK VSS X1 X2 VDD BYTCK LDON GCTRL IPFLAG FLAG CLVS CRC DEMPH RESY IOSEL TEST AVDD1 OUTL AVSS1 OUTR DQSY VCC5V PSEL MSEL SSEL I/O I/O I I I I/O I/O I/O O I/O O I I O O O O O I I O O I O O O Functions
MN662790RSC (2/2)
Terminal for loop filter characteristic switch for PLL Non connect Non connect RF Signal output Standard electric current input terminal Bias terminal for DSL Loop filter terminal for DSL Loop filter terminal for PLL Loop filter terminal for VCO Power supply terminal for analog circuit Connect to ground terminal for analog circuit Non connect PLL extraction clock output Loop filter terminal for VCO Sub code serial output Clock signal input for sub code serial output Connect to ground terminal for oscillation circuit Oscillation circuit input terminal f=16.9344 MHz, 33.8688 MHz Oscillation circuit output terminal f=16.9344 MHz, 33.8688 MHz Power supply terminal for oscillation circuit Non connect Laser ON signal output H : ON General I/O port Non connect Flag signal output Non connect Non connect De-emphasis detection signal output Non connect Mode switch terminal TEST terminal usually : H Power supply terminal for analog circuit (for audio output section) Lch audio output Connect to ground terminal for analog circuit (for audio output section) Rch audio output RF signal polarity specification terminal Power supply terminal (5V) IOSEL=H TEST terminal IOSEL=L SRDATA input IOSEL=H SMCK terminal output (frequency switch terminal) IOSEL=L LRCK input IOSEL=H SUBQ terminal output mode switch terminal IOSEL=L BCLK input
1-39
UX-A52
LA6541-X (IC801) : Servo driver
1. Pin layout & Block diagram
Vcc
24
Vref
23
Vin4
22
Vg4
21
Vo8
20
Vo7
19
Gnd
Vo6
18
Vo5
17
Vg3
16
Vin3
15
Cd
14
Res
13
11k ohm Level shift BTL driver
Vcc + BTL driver
11k ohm Level shift
-
+
RESET
Level shift 11k ohm
1 2 3 4
BTL driver
BTL driver
Level shift 11k ohm
Regulator
5
6
7 Gnd
8
9
10
11
12
Vcc
Mute
Vin1
Vg1
Vo1
Vo2
Vo3
Vo4
Vg2
Vin2
Reg out
Reg In
2. Pin function
Pin No.
Symbol
Vcc Mute Vin1 Vg1 Vo1 Vo2 Vo3 Vo4 Vg2 Vin2 Reg Out Reg In Res Cd Vin3 Vg3 Vo5 Vo6 Vo7 Vo8 Vg4 Vin4 Vref Vcc
Function
Power supply (Shorted to pin 24) All BTL amplifier outputs ON/OFF BTL AMP 1 input pin BTL AMP 1 input pin (For gain adjustment) BTL AMP 1 input pin (Non inverting side) BTL AMP 1 input pin (Inverting side) BTL AMP 2 input pin (Inverting side) BTL AMP 2 input pin (Non inverting side) BTL AMP 2 input pin (For gain adjustment) BTL AMP 2 input pin External transistor collector (PNP) connection. 5V power supply output External transistor (PNP) base connection Reset output Reset output delay time setting (Capacitor connected externally) BTL AMP 3 input pin BTL AMP 3 input pin (For gain adjustment) BTL AMP 3 output pin (Non inverting side) BTL AMP 3 output pin (Inverting side) BTL AMP 4 output pin (Inverting side) BTL AMP 4 output pin (Non inverting side) BTL AMP 4 output pin (For gain adjustment) BTL AMP 4 output pin Level shift circuit's reference voltage application Power supply (Shorted to pin 1)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1-40
UX-A52
LA1838 (IC1) : FM AM IF amp & Detector, FM MPX decoder
1. Block diagram 30 29 28
REG ALC BUFF P-DET AGC AM IF SD COMP AM S-METER FM S-METER S-CLRVE AM/FM IF-BUFF TUNING DRIVE FM IF PM DET GND STEREO DRIVE DET VCO 384KHz FF 38k FF 19k / 2 FF 19k /LS PILOT DET STEREO 5N SW AM OSC AM MIX FM RF.AMP DECODER ANIT-BIRDIE
27
26
25
24
23
22
21
20
19
18
17
16
MUTE
VCC
1 2. Pin function
Pin No. 1 2 Symbol FM IN AM MIX
2
3
4
5
6
7
8
9
10
11
12
13
14
15
I/O I
Function This is an input terminal of FM IF signal.
Pin No. 16
Symbol L OUT
I/O O
Function Left channel signal output.
O This is an out put terminal for AM mixer. I Bypass of FM IF Input of AM IF Signal.
17 18
R OUT
O Right channel signal output. Input terminal of the Left channel post AMP. Input terminal of the Right channel post AMP. Mpx Right channel signal output. Mpx Left channel signal output. Mpx input terminal FM detection output. AM detection output. This is an AGC voltage input terminal for AM This is an output terminal of voltage for FM-AFC. AM RF signal input. Register value between pin 26 and pin28 besides the frequency width of the input signal. This is a terminal of AM Local oscillation circuit. AM Local oscillation Signal output.
3
FM IF AM IF
L IN
I
4
I
19
R IN
I
5 6
GND TUNED
This is the device ground terminal. When the set is tunning,this terminal becomes "L". Stereo indicator output. Stereo "L", Mono: "H" This is the power supply terminal. FM detect transformer. This is a terminal of AM ceramic filter.
I
20 21
RO LO
O O
O
7 8 9 10
STEREO
O
22 23 24 25
MPX IN
I O O I
VCC FM DET AM SD
I
FM OUT AM DET AM AGC
11
FM VSM
O
I
I
Adjust FM SD sensitivity.
26
AFC
12 13
AM VSM MUTE
O
Adjust AM SD sensitivity.
27 28
AM RF REG
I/O When the signal of IF REQ of IC121( LC72131) appear, the signal of FM/AM IF output. //Muting control input. I Change over the FM/AM input. "H" :FM, "L" : AM
O
14
FM/AM
29
AM OSC
15
MONO/ST O Stereo : "H", Mono: "L"
30 OSC BUFFER O
I
I
I
1-41
UX-A52
LC72136N (IC2) : PLL frequency synthesizer
1. Pin layout
XT FM/AM CE DI CLOCK DO FM/ST/VCO AM/FM 1 2 3 4 5 6 7 8 9 10 SDIN 11 22 21 20 19 18 17 16 15 14 13 12 XT GND LPFOUT LPFIN PD VCC FMIN AMIN IFCONT IFIN
2. Block diagram
Phase Detector Charge Pump
1 22
Reference Driver
18 19 20
16
1/2
Swallow Counter 1/16,1/17 4bit
Unlock Detector
15
12bit Programmable DriverS 12
3 4 5 6 17 21 Power on Reset C2B I/F Universal Counter
Data Shift Register & Latch
7
8
2
11 13
3. Pin function
Pin No. 1 2 3 Symbol XT FM/AM CE I/O I O I Function X'tal oscillator connect (75kHz) LOW:FM mode When data output/input for 4pin(input) and 6pin(output): H 4 DI I Input for receive the serial data from controller 5 6 CLOCK DO I O Sync signal input use Data output for Controller Output port 7 FM/ST/VCO O "Low": MW mode 18 PD O 16 17 FMIN VCC I FM Local OSC signal input Power suplly(VDD=4.5-5.5V) When power ON:Reset circuit move PLL charge pump output(H: Local OSC frequency Height than Reference frequency. L: Low Agreement: Height impedance) 8 9 10 11 AM/FM LW MW SDIN O I/O I/O I/O Open state after the power on reset Input/output port Input/output port Data input/output 19 20 21 22 LPFIN LPFOUT GND XT I O I Input for active lowpassfilter of PLL Output for active lowpassfilter of PLL Connected to GND X'tal oscillator(75KHz) 15 AMIN I AM Local OSC signal output Pin No. 12 13 14 Symbol IFIN IFCONT I/O I O Function IF counter signal input IF signal output Not use
1-42
UX-A52
LA72723 (IC3) : RDS demodulation
1. Pin layout
VREF MPXIN Vdda Vssa FLOUT CIN TES XOUT 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 RDS-ID/READY RDCL RDDA RST MODE Vddd Vssd XIN
2. Block Diagram
+5V Vdda + REFERENCE VOLTAGE Vssa 57kHz BPF (SCF) VREF PLL (57kHz) CLOCK RECOVERY (1187.5Hz) Vddd VREF FLOUT CIN +5V
Vssd
MPXIN ANTI ALIASING FILTER
SMOOTHING FILTER
DATA DECODER
RDDA RDCL
RAM (128-bits)
MODE
RST CLK(4.332MHz) TEST TEST OSC RDS-ID DETECT
RDS-ID/ READY
XIN
XOUT
3. Pin functions
Pin No.
Symbol VREF MPXIN Vdda Vssa FLOUT CIN TEST XOUT XIN Vssd Vddd MODE RST RDDA RDCL RDS-ID READY
I/O O I
Function Reference voltage output (Vdda/2) Baseband (multiplexed) signal input Analog power supply (+5V) Analog ground Subcarrier input (filter output) Subcarrier input (comparator input) Test input Crystal oscillator output (4.332MHz) Crystal oscillator input (exeternal reference input) Digtal ground Digtal power supply
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
O I I O I
I I O I/O O
Read mode setting (0:master,1:slave) RDS-ID/RAM reset (positive polarity) RDS data output RDS clock output (master mode)/RDS clock input (slave mode) RDS-ID/READY output (negative polarity)
1-43
UX-A52
LA4628 (IC801) : Power amp.
1. Pin layout
1
2
13 14
2. Block diagram 2
RIPPLE FILTER
PREDRIVER POWER
Vcc 14
OUTPUT PPIN TO VCC SHORT PROTECTOR
13 -OUT1
LOAD SHORT PROTECTOR
1
IN
12 POWER GND 11 +OUT1
OUTPUT PIN TO GND SHORT PROTECTOR
PREDRIVER
POWER
PRE GND
3
BIAS CIRCUIT STANDBY SW
PREDRIVER
OVER VOLTAGE/ SURGE PROTECTOR Vcc THERMAL SHUT DOWN
POWER
4
OUTPUT PIN TO GND SHORT PROTECTOR
9 -OUT2
LOAD SHORT PROTECTOR
IN2
6
IN
10 POWER GND2 8 +OUT2
OUTOUT PIN TO VCC SHORT PROTECTOR
PREDRIVER
POWER
POP NOISE PREVENTION CIRCUIT
5
7
1-44
UX-A52 L4909 (IC802) : Regulator
1. Pin layout
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
2. Block diagram
THERMAL SHUTDOWN EN1 EN2 EN3 6 7 9 ENABLE CONTROL REF REFERENCE REF+20% GENERATOR REG1 REG2 REG3
REG1
3,13
VINA VINB
2 1
VO1 FB1
OC
5 OVER CURRENT CHECK 4 8
REG2
14 15
VO2 FB2
TRIG GND
REG3
11 10
VO3 FB3
3. Pin functions Pin No. Symbol 1 FB1 2 VO1 3 VINA 4 TRIG 5 OC 6 EN1 7 EN2 8 GND 9 EN3 10 FB3 11 VO3 12 N.C. 13 VINB 14 VO2 15 FB2 Function REG1 feedback voltage input REG1 output voltage Input DC supply voltage Trigger for external SCR (crowbar protection) Over current warning output REG1 enable input REG2 enable input Analog ground REG3 enable input REG3 feedback voltage input REG3 output voltage Not connected Input DC supply voltage REG2 output voltage REG2 feedback voltage input
1-45
UX-A52 KIA78S05P-T (IC803) : Reglator
1. Pin layout 2. Block diagram 3 INPUT Q14 Q1 Q12 R9 R4 Q13 Q11 Q10 Q9 Q2 Q7 R11 R3 Q8 R8 R7 1 OUTPUT R5 R6 2 COMMON
VOUT Current Limit Voltage Reference VSS
Q3
Q5
Q4 R1 123 Z1 Q16 R10
Q6 C1 R2
Output Control
XC62HR3502P-X (IC291) : Regulator
1. Pin layout
5 4
2. Block diagram
VIN
1
2
3 CE
3. Pin function Pin No. Symbol 1 VSS 2 VIN 3 CE 4 NC 5 VOUT Function Ground Supply voltage input Chip enable Non connect Regulated output voltage
1-46
UX-A52
BA3126N (IC331) : R / P switch
1. Pin layout & Block diagram
C O NT .
REC SW
GND
Vcc
1
2
3
4
5
6
7
8
9
AN7317 (IC332) : R / P amp
1. Pin layout & Block diagram 16 15
112k
14
13
12
11
REC SW
P/B SW
P/B SW
G
G
10
9
60k
30k
Mute
Pre
R.R
Pre
Pre
60k 30k 112k
Pre
ALC
4 5 6 7 8
1
2
3
2. Pin function Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Function CH1 playback amp input Feedback of CH1 playback amp CH1 playback amp output CH1 recording amp input CH1 recording amp output Low cut of ALC Time of ALC GND Vcc Lipple filter Recording amp mute CH2 recording amp output CH2 recording amp input CH2 playback amp output Feedback of CH2 playback amp CH2 playback amp input
1-47
UX-A52
GP1UM271XK (IC901) : Remocon
1. Block diagram RL
Amp
Limiter
B.P.F
Demodulator
Integrrator
Comparator
GND
Vcc
Vout
BU4094BCF-X (IC333) : Shift / Store registor
1. Pin layout
16 15 14
Q5
2. Block diagram
13
Q6
12
Q7
11
Q8
10
Q'S
9
Q'S
VDD OUTPUT ENABLE
DATA CLOCK
2 3
8-STAGE SHIFT REGISTER
10 9
Q'S
SERIAL QS OUTPUT
STROBE
1
8-BIT LATCHES
STROVE DATA CLOCK
Q1
Q2
Q3
Q4
Vss
1
2
3
4
5
6
7
8
OUTPUT ENABLE
15 Q1
3-STATE OUTPUTS
Q8
PARALLEL OUTPUT
LB1641 (IC703, IC704) : DC motor driver
1. Pin layout 2. Pin function
Input IN1 IN2 Output OUT1 OUT2 Mode Brake CLOCKWISE COUNTER-CLOCKWISE Brake
0 1
1 2 3 4 VZ 5 IN1 6 7 8 9
10
0 0 1 1
0 1 0 0
0 0 1 0
0 1
GND OUT1 P1
IN2 VCC1 VCC2 P2
OUT2
1-48
UX-A52
< MEMO >
1-49
UX-A52 UX-A52
VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
1-50 (No.21074)
Printed in Japan 200202