8.ELECTRICAL PARTS LIST .................................. 66
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
– 2 –
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down 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
pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objecti ve lens.
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.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
1-1.H OW T O OPEN THE DISC TRAY WHEN
POWER SWITCH TURNS OFF
1 Insert a tapering driver into the aperture of the unit bottom,
and move the limiter (LEVER) to direction of the arrow A.
2 Pull the tray to direction fo the arrow B.
tray
B
Limiter (LEVER)
A
tapering driber
*
To close the disc tray, move the driver in
the reverse direction (to IN direction).
1-2.PREPARATION FOR ADJUSTMENT AND
MEASUREMENT
Perform connecting the IC361 pin 2 of BD board to the line of
+5V because this unit does not work without the stabilizer structurally.
Connecting Location:
[BD BOARD] (SIDE B)
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
Q301
+5V
IC361
2
1
Q302
– 3 –
SECTION 2
GENERAL
This section is extracted
from instruction manual.
– 4 –
– 5 –
– 6 –
– 7 –
– 8 –
– 9 –
– 10 –
– 11 –
– 12 –
– 13 –
– 14 –
• This set can be disassembled in the order shown below.
SECTION 3
DISASSEMBLY
LOADING PANEL
SECTION
(Page 15)
Note: Follow the disassembly procedure in the numerical order given.
CASE,
FRONT PANEL SECTION
(Page 16)
LOADING PANEL SECTION
MECHANISM
DECK SECTION
(Page 16)
BASE UNIT
(Page 17)
LOADING MOTOR
(Page 18)
POWER BOARD, MAIN BOARD
(Page 18)
OPTICAL PICK-UP
(Page 17)
4
loading panel section
3
two hexagon hole bolts
(LID)
B
2
Pull the loading panel to
direction of the arrow
A
1
B
.
limiter (LEVER)
Insert a tapering driver,
and move the limiter (LEVER)
to direction of the arrow
A
.
– 15 –
CASE, FRONT PANEL SECTION
7
connector
(CN407)
1
four screws
(CASE 3 TP2)
9
connector
(CN992)
3
case
2
screw
(BVTT3
×
6)
1
four screws
(CASE 3 TP2)
!∞
front panel
HP board
8
connector
(CN402)
MECHANISM DECK SECTION
0
5
flat wire (10 core)
(CN106)
!£
five screws
(BV3
×
8)
6
mechanism deck
(CDM36A-14A)
two screws
(BVTT3
×
6)
5
four screws
(BVTT3
!¢
×
6)
6
flat wire (9 core)
(CN107)
two screws
(BVTT3
×
6)
4
connector
(CN206)
!¡
screw
(BVTT3
!™
lug
×
6)
3
screw
(BVTT3
3
two screws
(BVTT3
×
6)
×
6)
3
four screws
(BVTT3
×
6)
4
– 16 –
sub panel
3
1
three connectors
(CN201, 205, 251)
2
flat wire (16 core)
(CN101)
screw
(BVTT3
×
6)
BASE UNIT
9
3
screw
(BVTP3
×
8)
!º
lug
!¡
base unit
(BU-14A)
5
cover (F) (DRAWER)
panel (DRAWER)
6
two screws
(BVTP3
8
flat wire (30 core)
(CN108)
×
8)
2
two screws
(BVTP3
7
panel (R) (DRAWER)
×
8)
2
two screws
(BVTP3
×
8)
4
two screws
(BVTP3
OPTICAL PICK-UP
9
Removal the optical pick-up
to direction of the arrow
×
8)
2
two precision screws
(P17
×
2.5)
5
screw
(BVTP3
A
1
pull the tray
×
8)
.
6
A
leaf spring (OP)
7
claw
8
sled shaft
1
flat wire (16 core)
3
two screws
(BVTP 2.6
4
BD TRANSLA TION
board
×
8)
– 17 –
LOADING MOTOR
1
Pull the tray.
2
connector
(CN103)
4
screw
(BVTP 3
×
8)
7
Removal the two
solders of loading motor.
8
5
6
LOADING MOTOR board
loading motor
two claws
POWER BOARD, MAIN BOARD
4
POWER board
3
four screws
(BVTT3
3
Hang the belt
1
two connectors
(CN207, 309)
×
6)
2
two connectors
(CN203, 204)
5
connector
(CN302)
6
three screws
(BV/RING)
7
four screws
(BVTT3
8
Removal the MAIN board
A
×
6)
to direction of the arrow
A
.
– 18 –
SECTION 4
TEST MODE
4-1. AF MODE
Connect the TP19 (AFADJ) on the BD board to the ground and
turn on the power supply.
The AF mode is then activated and the following check can be
made.
4-1-1. Fluorescent Indicator Tube Check
After confirming display of all on, keep pressing the following
button, and the following display is attained.
p (STOP) button
(Display: 01)
” (PLAY) button
(Display: 02)
P (PAUSE) button
(Display: 03)
) button
SHUFFLE
0 button
PROGRAM
REPEAT
AUTO SPACE
STEP
INDEX
A-
EDIT
–
1
B
PEAK
(Display: 04)
(JUST)
(Display: 05)
Keep pressing the §OPEN/CLOSE button, and all on display is
attained again.
4-1-2. Key Check
All buttons are assigned with numbers respectively , and when each
button is pressed, it is counted and its number is displayed. Up to
“16” can be counted.
A button pressed once is not further counted but the number is
displayed. (Table 4-1)
(
count display
button number
display
(
Table 4-1.
ButtonDisplayButtonDisplay
ERASE00P03
EDIT/
TIME FADE
12)04
FILE13005
FILTER20CHECK06
ENTER23CLEAR07
6all light
OPEN/CLOSEup
P MODE09
p01REPEAT10
(02TIME11
4-1-3. Remote Commander Check
Press the ( button on remote commander, and “ ˚ ” ( on the
set turn on. Nothing will be displayed if pressing another button.
CHECK button
CLEAR button
135
79
111315
(Display: 06)
24
6810
1214”
(Display: 07)
– 19 –
4-2. ADJ MODE
Connect the TP18 (ADJ) on the BD board to the ground and turn
on the power supply. The ADJ mode is then activated and the
following operation is executed.
• There is no problem even if Guarded Frame Sync is low value
continuously during playing.
• Do not perform high speed search during an access.The gain of
focus servo and spindle servo does not lower during playing.
• Manual operation and measurement of the servo system are possible. (For detailed operating method, see Table 4-2. in ADJ
Mode.)
Connecting Location:
[BD BOARD] (SIDE B)
CN107
TP19
(AFDJ)
TP18
(ADJ)
2
IC361
1
4-2-1. Button Operation Table in ADJ Mode
After all music numbers are displayed, press the TIME button,
and the jitter display mode is then set. The button functions are as
listed below.
Button Functions (Operate with remote commander.)
Table 4-2.
Button No.Test Mode
3Tracking servo off
8Tracking servo on
11S-curve measuring mode
12All servo off
13Top turnblack display
14Botton turnblack display
15Center display
16Optimum point display
17Optimum jitter display
18TE traverse display
19VC, FE and RF display
20
Autogain display
(Focus, tracking and sled)
* For button numbers 3, 8, 11, and 12, use them only when an
oscilloscope is connected.
IC102
CN101
IC104
4-3. CLV-S MODE
The spindle servo can be operated for play in the CLV-S mode by
connecting TP18 (ADJ) and after turning on the power supply.
4-4. RELEASE THE TEST MODE
Disconnect the lead wire of test point connected in first step.
– 20 –
SECTION 5
ELECTRICAL ADJUSTMENTS
Notes:
1. CD block basically constructed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
indicated.
3. Use the oscilloscope with more than 10 MΩ impedance.
4. Clean an object lens by an applicator with neutral detergent
when the signal level is low than specified value with the following checks.
S-Curve Check
Connection:
BD board
TP2 (FE)
TP (VC)
Procedure:
1. Connect the oscilloscope to TP2 (FE) and TP (VC) on BD
board.
2. Connect the TP3 (FEI: IC101 pin @ª) and TP (VC) with lead
wire.
3. Turned power switch on.
4. Put disc (YEDS-18) in and turned power switch on again and
actuate the focus search. (actuate the focus search when disc
table is moving in and out.)
5. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within
3.0 ± 1.0 Vp-p.
S-curve waveform
6. After check, remove the lead wire connected in step 2.
Note: • Try to measure several times to make sure that the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
Connection:
BD board
TP1 (RF)
TP (VC)
Procedure:
1. Connect the oscilloscope to TP1 (RF) and TP (VC) on BD
board.
2. Turned power switch on. (stop mode)
3. Put disc (YEDS-18) in and press the ( button.
4. Confirm that the oscilloscope waveform is clear and check RF
signal level is correct or not.
Note: Clear RF signal waveform means that the shape “≈” can
be clearly distinguished at the center of the waveform.
oscilloscope
+
–
symmetry
A
B
oscilloscope
(AC range)
+
–
within 3.0 ± 1.0 Vp-p
RF signal waveform
When observing the eye pattern, set the oscilloscope for A C range
and raise vertical sensitivity.
E-F Balance (Traverse) Check
Connection:
BD board
TP4 (TE)
TP (VC)
Procedure:
1. Connect the TP18 (ADJ) to ground and TP5 (TEI: IC101 pin
@¶) to TP (VC)with lead wire.
2. Connect the oscilloscope to TP4 (TE) and TP (VC) on BD
board.
3. Turned power switch on.
4. Put disc (YEDS-18) in and press the ( button.
5. Confirm that the oscilloscope waveform is symmetrical on the
top and bottom in relation to A Vdc, and check this level.
Traverse waveform
×
100 is ± 20 % or less.
A/B
oscilloscope
(DC range)
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
(with the 10: 1 probe
in use)
level: 1.2Vp-p
+
–
A
B
level: 1.3 ± 0.7 Vp-p
+0.25
–0.20
Symmetry
6. After check, remove the lead wire connected in step 1.
RF PLL Free-run Frequency Check
Connection:
BD board
TP13 (XPLCK)
Procedure:
1. Connect the frequency counter to TP13 (XPLCK).
2. Turned power switch on.
3. Put disc (YEDS-18) in and press the ( button.
4. Confirm that the reading on frequency counter is 4.3218 MHz.
1SRONOSled servo drive PWM signal output terminal Not used (open)
2SRDROSled servo drive PWM signal (–) output to the BA6297AFP (IC102)
3SFONOSled servo drive PWM signal output terminal Not used (open)
4TFDROTracking servo drive PWM signal (–) output to the BA6297AFP (IC102)
5TRONOTracking servo drive PWM signal output terminal Not used (open)
6TRDROTracking servo drive PWM signal (+) output to the BA6297AFP (IC102)
7TFONOTracking servo drive PWM signal output terminal Not used (open)
8FFDROFocus servo drive PWM signal (+) output to the BA6297AFP (IC102)
9FRONOFocus servo drive PWM signal output terminal Not used (open)
10FRDROFocus servo drive PWM signal (–) output to the BA6297AFP (IC102)
11FFONOFocus servo drive PWM signal output terminal Not used (open)
12VCOOOOscillator circuit output terminal for analog PLL of the playback EFM Not used (open)
13VCOIIOscillator circuit input terminal for analog PLL of the playback EFM Not used (fixed at “L”)
14TESTIInput terminal for the test (fixed at “L”)
15DVSS—Ground terminal (digital system)
16TES2IInput terminal for the test (fixed at “L”)
17TES3IInput terminal for the test (fixed at “L”)
18PDOOCharge-pump output terminal for analog PLL of the playback EFM Not used (open)
19VPCOOPLL charge-pump output terminal for the variable pitch Not used (open)
20VCKIIClock signal input from external VCO for the variable pitch Not used (fixed at “L”)
21AVD2—Power supply terminal (+5V) (analog system)
22IGENIPower supply terminal (+5V) (for operational amplifier)
23AVS2—Ground terminal (analog system)
24ADIIIInput terminal for the A/D converter Not used (open)
25ADIOOOutput terminal of the operational amplifier Not used (open)
26RFDCIRF signal (DC level) input terminal for the digital servo process
27TEITracking error signal input from the RF amplifier in optical pick-up
28SEISled error signal input from the RF amplifier in optical pick-up
29FEIFocus error signal input from the RF amplifier in optical pick-up
30VCIMiddle point voltage (+2.5V) input from the RF amplifier in optical pick-up
31FILOOFilter output terminal for master clock of the playback master PLL
32FILIIFilter input terminal for master clock of the playback master PLL
33PCOOPhase comparison output terminal for master clock of the playback EFM master PLL
34CLTVIInternal VCO control voltage input of the playback master PLL
35AVS1—Ground terminal (analog system)
36RFACIRF signal (AC level) input terminal for the EFM demodulator
37BIASIConstant current input terminal of the playback EFM asymmetry circuit
38ASYIIPlayback EFM asymmetry comparator voltage input terminal
39ASYOO
40AVD1—Power supply terminal (+5V) (analog system)
41DVDD—Power supply terminal (+5V) (digital system)
42ASYEIPlayback EFM asymmetry circuit on/off selection input terminal (fixed at “H”)
43PSSLIAudio data output mode selection input terminal (fixed at “L”)
Playback EFM full-swing output terminal
Pin No. Pin NameI/ OFunction
44WDCKOWord clock signal (88.2 kHz) output terminal Not used (open)
45LRCKOL/R sampling clock signal (44.1 kHz) output to the CXD8595Q (IC301)
46DATAO
47BCLKO
4864 DATAO
4 964 BCLKO
5 064 LRCKO
51GTOPO
52XUGFO
53XPLCKO
54GFSO
55RFCKO
56C2POO
57XRAOFO
58MNT3O
59MNT2O
60MNT1O
61MNT0O
62XTAIISystem clock input terminal (16 MHz)
63XTAOOSystem clock output terminal (16 MHz) Not used (open)
64XTSLISystem clock selection input terminal (fixed at “L”)
65DVSS—Ground terminal (digital system)
66FSTII2/3 divider input terminal of pins ^™ (XATI) and ^£ (XTAO)
67FSTOO2/3 divider output terminal of pins ^™ (XATI) and ^£ (XTAO)
68C4MO4.2336 MHz clock signal output terminal Not used (open)
69C16MO16.9344 MHz clock signal output terminal Not used (open)
70MD2IDigital out on/off control signal input from the system controller (IC351)
71DOUTODigital signal (for coaxial out and optical out) output terminal
72EMPHOEmphasis control signal output terminal Not used (open)
73WFCKOWrite frame clock signal output terminal Not used (open)
74SCOROSub-code sync (S0+S1) detection signal output to the system controller (IC351)
DA16 output when PSSL=“H”, 48-bit slot serial data output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Serial data output to the CXD8595Q (IC301)
DA15 output when PSSL=“H”, 48-bit slot bit clock signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Bit clock signal (2.8224 MHz) output to the CXD8595Q (IC301)
DA14 output when PSSL=“H”, 64-bit slot serial data output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA13 output when PSSL=“H”, 64-bit slot bit clock signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA12 output when PSSL=“H”, 64-bit slot L/R sampling clock signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA11 output when PSSL=“H”, GTOP signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA10 output when PSSL=“H”, XUGF signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA09 output when PSSL=“H”, XPLCK signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA08 output when PSSL=“H”, GFS (guard frame sync) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA07 output when PSSL=“H”, RFCK (read frame clock) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA06 output when PSSL=“H”, C2PO signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA05 output when PSSL=“H”, XRAOF (RAM over flow) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA04 output when PSSL=“H”, MNT3 (monitor 3) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA03 output when PSSL=“H”, MNT2 (monitor 2) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA02 output when PSSL=“H”, MNT1 (monitor 1) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
DA01 output when PSSL=“H”, MNT0 (monitor 0) signal output when PSSL=“L”
(PSSL (pin $£)=fixed at “L”) Not used (open)
– 23 –
– 24 –
Pin No. Pin NameI/OFunction
75SBSOOSub-code P-W serial data output terminal Not used (open)
95
96
97
98
76EXCKISub-code P-W serial data reading clock signal input terminal Not used (fixed at “L”)
77SUBQOSub-code Q data signal output to the system controller (IC351)
78SQCKISub-code Q data reading clock signal input from the system controller (IC351)
79MUTEIMute signal input from the system controller (IC351)
80SENSOInternal status (SENSE) signal output to the system controller (IC351)
81XRSTI
82DIRCI1-track jump mode input terminal Not used (fixed at “H”)
83SCLKISense serial data reading clock signal input from the system controller (IC201)
84DFSWIDefect on/off select signal input terminal Not used (fixed at “L”)
85ATSKIInput terminal for the anti-shock Not used (fixed at “L”)
86DATAISerial data input from the system controller (IC351)
87XLATISerial data latch pulse signal input from the system controller (IC351)
88CLOKISerial data transfer clock signal input from the system controller (IC351)
89COUTOTrack number count signal output terminal Not used (open)
90DVDD—Power supply terminal (+5V) (digital system)
91MIRROMirror detection signal output terminal Not used (open)
92DFCTODefect signal output terminal Not used (open)
93FOKOFocus OK signal output terminal Not used (open)
94FSWOSelection signal output terminal of the output filter for spindle motor Not used (open)
MONOSpindle motor on/off control signal output terminal Not used (open)
99SSTPI
100SFDROSled servo drive PWM signal (+) output to the BA6297AFP (IC102)
MDPOSpindle servo control signal output terminal
MDSOSpindle servo control signal output terminal Not used (open)
LOCKO
System reset signal input from the reset signal generator (IC206) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
GFS is sampled by 460 Hz “H” output when GFS is “H” Not used (open)
Detection input from the sled limit-in detect switch (SW102)
The optical pick-up is inner position when “H”
– 25 –
• BD BOARD IC351 CXP84124-068Q (SYSTEM CONTROL)
Pin No.Pin NameI/OFunction
1A3O
2A4O
3A5O
4A6O
5A7O
6A8O
7A9O
8A10O
9A11O
10A12O
11
12
13NCONot used (open)
14LED-PLAYO
15LED-PAUSEO
16LED-FILTEROFILTER LED (D873) drive signal output terminal “H”: LED on
17SPDL-MUTEOMute signal output to the spindle motor driver (IC102, 104)
18SHIFT-ON/OFFO
19VOL UPOVolume up control signal output to the volume control motor driver (IC354)
20VOL DOWNOVolume down control signal output to the volume control motor driver (IC354)
21
22
23
24
WEOWrite enable signal output to the static RAM (IC352)
NCONot used (open)
BLANKOBlank signal output to the fluorescent indicator tube driver (IC801 to IC803)
FL D0OSerial data output to the fluorescent indicator tube driver (IC803)
FL D1OSerial data output to the fluorescent indicator tube driver (IC802)
FL D2OSerial data output to the fluorescent indicator tube driver (IC801)
Address signal output to the static RAM (IC352)
( LED (D871) drive signal output terminal “H”: LED on
P LED (D872) drive signal output terminal “H”: LED on
Reset signal output to the CXD2562Q-CS (IC302) “L”: reset
25
26
27SENSER SWO
28SENSERIDetect signal input from the stabilizer detect sensor (IC361) “H”: on
29
30
31
32
33
34
35
36
37
38ADJ/AFADJISetting terminal for the test mode “L” active
39
40
41K2I
FL CLKOSerial data transfer clock signal output to the fluorescent indicator tube driver (IC801 to IC803)
FL WRORead/write select signal output to the fluorescent indicator tube driver (IC801 to IC803)
On/off control signal output to the stabilizer detect sensor (IC361) “H”: on
LIMIT OUTI
RESETI
XTALIIMain system clock input terminal (4 MHz)
XTALOOMain system clock output terminal (4 MHz)
VSS—Ground terminal
TXOSub system clock output terminal Not used (open)
TEXISub system clock input terminal Not used (fixed at “L”)
AVSS—Ground terminal (for A/D converter)
AVREFIReference voltage input terminal (+5V)
K0IKey input terminal (A/D input) (fixed at “H”)
K1I
Detection input from the sled limit-out detect switch
The optical pick-up is outer position when “L” Not used (fixed at “L”)
System reset signal input from the reset signal generator (IC206) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
Key input terminal (A/D input)
P MODE, TIME keys (S819S820) input
43K4I
44K5I
45IN/OUT SWIDetection input from the loading in/out detect switch (S281, S282) (A/D input)
46SCLKOSense serial data reading clock signal output to the CXD2545Q (IC101)
47PRGLOSerial data latch pulse signal output to the CXD8595Q (IC301)
48CLKOSerial data transfer clock signal output to the CXD2545Q (IC101) and CXD8595Q (IC301)
49SENSEIInternal status (SENSE) signal input from the CXD2545Q (IC101)
50DATAOSerial data output to the CXD2545Q (IC101) and CXD8595Q (IC301)
51SQCKOSub-code Q data reading clock signal output to the CXD2545Q (IC101)
52SUBQISub-code Q data signal input from the CXD2545Q (IC101)
53TESTOOutput terminal for the test Not used (open)
54SEL1IDestination setting terminal (fixed at “L”)
55SEL0IDestination setting terminal (fixed at “L”)
56RMINIRemote control signal input from the remote control receiver (IC804)
57TIMERITimer control input terminal Not used (fixed at “H”)
58TESTOOutput terminal for the test Not used (open)
59TESTOOutput terminal for the test Not used (open)
60SCORISub-code sync (S0+S1) detection signal input from the CXD2545Q (IC101)
61AMUTEOMuting control signal output to the analog mute driver and mute relay driver
62LDONOLaser diode on/off selection signal output to the RF amplifier in optical pick-up
63XLTOSerial data latch pulse signal output to the CXD2545Q (IC101)
64LOAD OUTOLoading motor (M2) drive signal output to the NJM4558 (IC182) *1
65LOAD INOLoading motor (M2) drive signal output to the NJM4558 (IC182) *1
66DOUTODigital out on/off control signal output to the CXD2545Q (IC101) Not used (Open)
67DMUTEOMuting control signal output to the CXD2545Q (IC101) and CXD8595Q (IC301)
68D0I/O
69D1I/O
70D2I/O
71D3I/O
72VDD—Power supply terminal (+5V)
73NCINot used (fixed at “H”)
74D4I/O
75D5I/O
76D6I/O
77D7I/O
78A0O
79A1OAddress signal output to the static RAM (IC352)
80A2O
From the viewpoint of performance of the set, the disc must
not move nor sway when the disc table opens. These
problems however occur in the actual case due to the offset
voltage generated and the voltage generated because of the
positional relation between the BSL coil and Hall element.
The spindle motor driver (IC102, IC104) is therefore mute
while the tray is open. Pin !¶ provides the timing for this.
H
SP MUTE
SENSER SW (pin @¶)
As IC361 IS471F operate in pulse as shown i n the figure, the
sound quality may be affected if operated constantly. As the
purpose of IC361 is to detect if the presence of the stabilizer,
it should be operated only when the tray is drawn in. IC361
operates as it is “H” only at this time. Normally it is “L”.
Eep
Ee
Eed
L
(MUTE ON)
OPEN
Reverses after a
certain period of time.
CLOSESPINDLE
Reverses after a
certain period of time.
Time while the
disc can be see
(Estimate).
PLAY
KICK
The spindle
motor driver is
muted during
this time.
BLANK (pin @¡)
This port is required because the display tube in this set static
lights up and a dedicated screwdriver is required. It is
basically a RESET pin. But as problems will occur if u se
also a s RESET, timings are specially provided using t he
micro-processor.
0
GLout pin
output waveform
Eepis the luminance of the signal light tuned with the low
*
Time
level timing of the GLout pin output.
Eedis the luminance of the D.C. light. Th e light source is
the infrated-emitting diode (λp=940 nm).
SENSER (pin @•)
The results of the detection of IC361 IS471F is output to this
pin. It becomes “ L ” when there is no stabilizer (when light
reaches). The next process of imposing the next focus is not
performed. (Effective only when pin @¶ is “H”.)
Therefore, it must be noted that if PLAY is performed when th
servo board a t the top of the CDM is not assembled properly,
the detection circuit operates and this pin does not operate.
It is does not operate, refer to 1. SERVICING NOTES ” Preparations for Adjustment and Measurement” on page 3.
– 28 –
• IC Block Diagrams
– BD Section –
IC103 CXA1821M
VEE
1
LD
VCC
PD
2
A
3
B
4
C
5
D
6
7
F
8
E
9
10
EI
VEE
+
–
VC
RF SUMMING AMP
+
–
+
–
VREF
VEE
–
+
VC
VEE
VC
VC
+
–
APC LD AMP
–
+
FOCUS ERROR AMP
VC
VC
VCC
VEE
RF EQ AMP
VC
TRACKING ERROR AMP
–
+
VC BUFFER
+
–
VCC
–
+
20
VCC
LD ON
19
LC/PD
18
RFE
17
RFO
16
15
FE
FE BIAS
14
TE
13
VC
VC
12
EO
11
IC181 TA7256P
+
–
2345 6 78 9 10
1
VEE
–IN1
+IN1
+IN2
OUT1
SENSE1
–IN2
+
–
VCC
OUT2
SENSE2
– 29 –
– MAIN Section –
IC206 M51957AL
–
+
1.25V
1 2
VDD
3
IN
GND
IC301 CXD8595Q
NRGCLR
5150494847464544
IF SELD
52
IF SELC
53
54
NC
55
SBCKI
SDATAR
SDATAL
DFDTOL
DFBCKO
DFDTEN
TEST1
TEST2
VSS
4BIT DATA
56
BITSTREAM
57
58
NC
59
60
61
62
63
64
4
DL
SYSM
LATCH
ATT
IIR
OVERFLOW DETECTOR
5
OUT
SHIFT
MODE
FIR 4
FIR 2FIR 1FIR 3
P/S CONVERT
D/F-CLK GEN.
ATT
INIT
LRCKI
DATAI
BCKI
VSS
VSS
NC
INVO2
INVO1
INVI
NC
128FSO
CKVDD
DINIT
42
43
TIMING
CIRCUIT
S / P
ATT
IIR
FIR 4
FIR 2FIR 1FIR 3
OVERFLOW DETECTOR
&
4039383736353433
41
ATT
x 0.75
ATT
x 0.75
POLALITY
OR
L . I . P.
DITHER
L . I . P.
"0" DETECT
CIRCUIT
CLOCK
GENERATOR
MUTE
3rd order
NOISE
SHAPER
3rd order
NOISE
SHAPER
32
31
30
29
28
27
26
25
24
23
22
21
20
INAF
OVFLAG
MUTER
MUTEL
MTPOL
DRPOL
MODE
NC
DFDTOR
DFLRCKO
TEST4
TEST3
VSS
12
PLMG2
VDD
3
NSDOL4
DATA SELECT
4
5
NSDOL3
NSDOL2
6
NSDOL1
2
8
7
NC
NC
910
VDD
VDD
1213
11
NC
64FSI
DATA SELECT
NSDOR1
14
NSDOR2
151617
NSDOR3
NSDOR4
MCKIN
1819
VDD
PLMG1
– 30 –
IC302 CXD2562Q
DPO/BCKO
DM2/SDRO
DM1/SDLO
DLO
51 50 49 48 47
DRO
LRCKO
INAF
DINIT
43444546
128FS
DVSSL
DVSSR
512FSO
BCKI
DLI
DRI
LRCKI
MUTEL
MUTER
33343536373839404142
INIT
DATAOUT
52
ON/OFF
TEST1
53
54
TEST2
55
TEST3
DVDDL
56
VSUB (D) L
VSUB (CHIP) L
VDD2
VDD
L1 (–)
VSS
L1 (+)
VSS2
57
58
59
60
61
62
63
64
IC354 BA6208
INTERPOLATER
INTERPOLATER
THIRD ORDER
NOISE SHAPER
THIRD ORDER
NOISE SHAPER
2 345 6 7 8 9
1
VSS
VSS2
L2 (+)
L2 (–)
VDD
VDD2
CLOCK
GENERATOR
XVDD
VSUB (A) L
TIMING CIRCUIT
10
11
XIN
XOUT
PLM
PLM
XVSS
XVSS
VDD2
VSUB (A) R
VDD
R2 (–)
S/P
VSS
1918171615141312
R2 (+)
VSS2
32
SYNC
31
COEF
SPLM
30
18/20
29
DVDDR
28
27
VSUB (D) R
VSUB (CHIP) R
26
VDD2
25
VDD
24
R1 (–)
23
VSS
22
R1 (+)
21
VSS2
20
GND
MOTOR
DRIVE
MOTOR
DRIVE
REG
Vcc
SWITCH
SWITCH
1234567
NC
INPUT 1
NC
INPUT 2
OUTPUT 2
8
OUTPUT1
9
NC
– 31 –
IC501, 601 CXA8042AS
1
I01+
2
I02–
3
NC
4
I01–
5
I02+
6
NC
7
VCC2
8
C2
C1
9
10
VCC1
VREF
VCNT
GND1
RIREF
REFERENCE
11
12
13
14
VOLTAGE
CIRCUIT
– PANEL Section –
IC801, 802, 803 LC7570E
SWITCHING
CIRCUIT
CONSTANT
CURRENT
CIRCUIT
CONTROL
CIRCUIT
28
IN2–
27
IN2+
26
NC
25
IN1+
IN1–
24
NC
23
C4
22
C3
21
GND2
20
VEE2
19
18
VEE1
17
C6
C5
16
15
CIREF
BLK
VSS
SIN
S33
S32
S31
S30
S29
S28
S27
S26
NC
VDA
DATACLWR
46474845 44 43 42 41 40 39 38 37
1
NC
2
3
4
5
6
7
8
9
10
11
12
13
14
NC
S25
SHIFT REGISTER
A/D CONVERTER
LATCH, FL DRIVER
15
16
S24
VFLS0S1S2S3NCS4
17 181920 21 22 23
S22
S21NCS20
S23
S19
S18
S17
36
S5
35
S6
34
S7
33
S8
32
S9
31
S10
30
S11
29
S12
28
S13
27
S14
26
S15
25
S16
24
NC
– 32 –
• Wave forms
– MAIN BOARD –
1 IC302 !º (XIN)
45.455 MHz
– BD BOARD –
2 IC351 #™ (XOUT)
4.00 MHz
2.02 Vp-p
5.92 Vp-p
6 IC101 $∞ (LRCK)
44.053 kHz
7 IC101 #§ (RFAC)
200 mV/DIV, 500 nS/DIV
6.32 Vp-p
+0.25
1.25 Vp-p
–0.20
3 IC101 %£ (XPLCK)
4.310 MHz
4 IC101 %∞ (RFCK)
7.353 kHz
6.8 Vp-p
5.84 Vp-p
8 IC101 @ª (FE)
0.1 Vp-p
9 IC101 @¶ (TE)
8.4 Vp-p
5 IC101 $¶ (BCLK)
2.1186 MHz
!º IC101 (§ (MDP)
3.6Vp-p
6.24 Vp-p
131.58 kHz
– 33 –
• Circuit Boards Location
BD board
VOL SEL board
POWER board
DISPLAY board
POWER SW board
HP board
BD TRANSLA TION board
PANEL board
LOADING MOTOR board
LOADING SW board
MAIN board
BSL board
– 34 –
SECTION 7
EXPLODED VIEWS
NOTE:
• -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)
↑
Cabinet's Color
(1) CASE, LOADING PANEL SECTION
10
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
8
9
The components identified by mark
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
IC1018-752-369-78 IC CXD2545Q
IC1028-759-071-79 IC BA6297AFP
IC1038-752-072-45 IC CXA1821M-T6
IC1048-759-071-79 IC BA6297AFP
IC3518-752-884-95 IC CXP84124-068Q
IC3528-759-289-94 IC LH5160TF
IC3618-749-010-61 IC IS471F
R1011-216-077-00 METAL CHIP15K5%1/10W
R1021-216-097-00 METAL GLAZE100K5%1/10W
R1031-216-077-00 METAL CHIP15K5%1/10W
R1041-216-085-00 METAL CHIP33K5%1/10W
R1051-216-097-00 METAL GLAZE100K5%1/10W
R1061-216-061-00 METAL CHIP3.3K5%1/10W
R1071-216-061-00 METAL CHIP3.3K5%1/10W
R1081-216-073-00 METAL CHIP10K5%1/10W
R1091-216-121-00 METAL GLAZE1M5%1/10W
R1101-216-025-00 METAL GLAZE1005%1/10W
R1111-216-693-11 METAL CHIP56K0.5% 1/10W
R1121-216-049-00 METAL GLAZE1K5%1/10W
R1131-216-073-00 METAL CHIP10K5%1/10W
R1141-216-073-00 METAL CHIP10K5%1/10W
R1151-216-677-11 METAL CHIP12K0.5% 1/10W
R1161-216-695-11 METAL CHIP68K0.5% 1/10W
R1171-216-073-00 METAL CHIP10K5%1/10W
R1181-216-073-00 METAL CHIP10K5%1/10W
R1191-216-097-00 METAL GLAZE100K5%1/10W
R1201-216-105-00 METAL GLAZE220K5%1/10W
R1211-216-073-00 METAL CHIP10K5%1/10W
R1221-216-073-00 METAL CHIP10K5%1/10W
R1231-216-073-00 METAL CHIP10K5%1/10W
R1241-216-097-00 METAL GLAZE100K5%1/10W
R1251-216-049-00 METAL GLAZE1K5%1/10W
R1261-216-049-00 METAL GLAZE1K5%1/10W
R1271-216-049-00 METAL GLAZE1K5%1/10W
R1311-216-037-00 METAL CHIP3305%1/10W
R1321-216-695-11 METAL CHIP68K0.5% 1/10W
R1331-216-049-00 METAL GLAZE1K5%1/10W
R1411-216-089-00 METAL GLAZE47K5%1/10W
R1421-216-081-00 METAL CHIP22K5%1/10W
R1431-216-103-00 METAL CHIP180K5%1/10W
R1441-216-103-00 METAL CHIP180K5%1/10W
R1451-216-069-00 METAL CHIP6.8K5%1/10W
R1461-216-073-00 METAL CHIP10K5%1/10W
R1471-216-081-00 METAL CHIP22K5%1/10W
R1481-216-001-00 METAL CHIP105%1/10W
R1491-216-003-11 METAL GLAZE125%1/10W
R1501-216-659-11 METAL CHIP2.2K0.5% 1/10W
Ref. No.Part No.DescriptionRemark
R1531-216-073-00 METAL CHIP10K5%1/10W
R1541-216-073-00 METAL CHIP10K5%1/10W
R1551-216-073-00 METAL CHIP10K5%1/10W
R1561-216-073-00 METAL CHIP10K5%1/10W
R1571-216-025-00 METAL GLAZE1005%1/10W
R1611-216-308-00 METAL CHIP4.75%1/10W
R1671-216-065-00 METAL CHIP4.7K5%1/10W
R1681-216-097-00 METAL GLAZE100K5%1/10W
R1691-216-105-00 METAL GLAZE220K5%1/10W
R1711-216-073-00 METAL CHIP10K5%1/10W
R1721-216-073-00 METAL CHIP10K5%1/10W
R1731-216-073-00 METAL CHIP10K5%1/10W
R1741-216-073-00 METAL CHIP10K5%1/10W
R1751-216-073-00 METAL CHIP10K5%1/10W
R1761-216-073-00 METAL CHIP10K5%1/10W
R1771-216-025-00 METAL GLAZE1005%1/10W
R1791-216-308-00 METAL CHIP4.75%1/10W
R1801-216-659-11 METAL CHIP2.2K0.5% 1/10W
R1811-216-065-00 METAL CHIP4.7K5%1/10W
R1821-216-065-00 METAL CHIP4.7K5%1/10W
R1831-216-065-00 METAL CHIP4.7K5%1/10W
R1841-216-065-00 METAL CHIP4.7K5%1/10W
R1861-216-105-00 METAL GLAZE220K5%1/10W
R1871-216-659-11 METAL CHIP2.2K0.5% 1/10W
R1881-216-097-00 METAL GLAZE100K5%1/10W
R1891-216-659-11 METAL CHIP2.2K0.5% 1/10W
R1901-216-105-00 METAL GLAZE220K5%1/10W
R1911-216-695-11 METAL CHIP68K0.5% 1/10W
R1921-216-001-00 METAL CHIP105%1/10W
R1931-216-001-00 METAL CHIP105%1/10W
R1951-216-097-00 METAL GLAZE100K5%1/10W
R1961-216-073-00 METAL CHIP10K5%1/10W
R1971-216-073-00 METAL CHIP10K5%1/10W
R3011-216-623-11 METAL CHIP680.5% 1/10W
R3121-216-073-00 METAL CHIP10K5%1/10W
R3511-216-069-00 METAL CHIP6.8K5%1/10W
R3521-216-069-00 METAL CHIP6.8K5%1/10W
R3531-216-069-00 METAL CHIP6.8K5%1/10W
R3541-216-069-00 METAL CHIP6.8K5%1/10W
R3551-216-069-00 METAL CHIP6.8K5%1/10W
R3561-216-069-00 METAL CHIP6.8K5%1/10W
R3571-216-069-00 METAL CHIP6.8K5%1/10W
R3581-216-069-00 METAL CHIP6.8K5%1/10W
R3591-216-089-00 METAL GLAZE47K5%1/10W
R3601-216-647-11 METAL CHIP6800.5% 1/10W
R3611-216-615-11 METAL CHIP330.5% 1/10W
R3621-216-295-00 CONDUCTOR, CHIP (2012)
R3641-216-017-00 METAL GLAZE475%1/10W
R3651-216-017-00 METAL GLAZE475%1/10W
R3661-216-073-00 METAL CHIP10K5%1/10W
R3671-216-017-00 METAL GLAZE475%1/10W
R3711-216-097-00 METAL GLAZE100K5%1/10W
R3721-216-073-00 METAL CHIP10K5%1/10W
< SWITCH >
S1531-762-930-11 SWITCH, LEVER (LOAD OUT)
R1511-216-073-00 METAL CHIP10K5%1/10W
R1521-216-073-00 METAL CHIP10K5%1/10W
R8171-216-045-00 METAL CHIP6805%1/10W
R8271-216-029-00 METAL CHIP1505%1/10W
R8281-216-089-00 METAL GLAZE47K5%1/10W
R8291-216-097-00 METAL GLAZE100K5%1/10W
R0011-216-073-00 METAL CHIP10K5%1/10W
R0021-216-073-00 METAL CHIP10K5%1/10W
R0031-216-073-00 METAL CHIP10K5%1/10W
R0041-216-073-00 METAL CHIP10K5%1/10W
R0051-216-051-00 METAL CHIP1.2K5%1/10W
R0061-216-047-00 METAL GLAZE8205%1/10W
R0071-216-025-00 METAL GLAZE1005%1/10W
R0081-216-045-00 METAL CHIP6805%1/10W
IC2088-749-921-12 IC GP1F32T (DIGITAL OUT OPTICAL)
IC2118-759-604-86 IC M5F7807L
IC2128-759-604-90 IC M5F7907L
IC2138-759-231-53 IC TA7805S
IC2518-759-242-70 IC TC7WU04F
IC3018-759-462-70 IC CXD8679Q
IC3028-759-454-42 IC CXD2562Q-CS
IC3038-759-180-84 IC TC7W74F
IC5018-759-371-51 IC CXA8042AS
IC5028-759-443-33 IC OPA2132PA
Ref. No.Part No.DescriptionRemark
IC5038-759-259-12 IC OPA2604AP
IC6018-759-371-51 IC CXA8042AS
IC6028-759-443-33 IC OPA2132PA
IC6038-759-259-12 IC OPA2604AP