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PMC-D407L
SERVICE MANUAL AEP Model
Ver 1.0 1998. 09
Model Name Using Similar Mechanism PMC-D307L
CD CD Mechanism Type KSM-213CDM
Section
Optical Pick-up Name KSS-213C
Tape Model Name Using Similar Mechanism PMC-D307L
Section Tape Transport Mechanism Type MF-D307
SPECIFICATIONS
CD player section Cassette-corder section
System Recording system
Compact disc digital audio system 4-track 2-channel stereo
Laser diode properties Fast winding time
Material: GaAlAs Approx. 130 s (sec.) with Sony cassette C-60
Wave length: 780 nm Frequency response
Emission duration: Continuous TYPE I (normal): 40 - 15,000 Hz
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of Super woofer
about 200 mm from the objective lens surface on Speaker
the optical pick-up block with 7 mm aperture.) Woofer: 10 cm (4 in.) dia., 4.0 ohms, cone type
Spindle speed Power output
200 r/min (rpm) to 500 r/min (rpm) (CLV) 30 W (at 100 Hz)
Number of channels Power consumption
2 AC 30 W
Frequency response Dimensions (incl. projecting parts)
20 - 20,000 Hz +1/2.5 dB Approx. 210 × 210 × 247 mm (w/h/d)
Wow and flutter (8 3/8 × 8 3/8 × 9 3/4 inches)
Below measurable limit Mass
Approx. 4.1 kg (9 lb. 1 oz.)
Radio section
Frequency range
FM Except Italian model 87.6 - 107 MHz Continued on next page
Italian model 87.5 - 108 MHz
MW 531 - 1,602 kHz
LW 153 - 279 kHz
IF
FM: 10.7 MHz
MW/LW: 450 kHz
Aerials
FM: External aerial terminal
MW/LW: External aerial terminal
PERSONAL COMPONENT SYSTEM
MICROFILM
1
General TABLE OF CONTENTS
Speaker
Full range: 8 cm (3 1/4 in.) dia., 6.0 ohms,
cone type × 2 1. SERVICING NOTES ......................................................... 3
Input
LINE IN jack (stereo minijack)
Minimum input level 250 mV 2. GENERAL
Outputs 2-1. Location of Controls ........................................................... 4
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
LINE OUT jack (stereo minijack) 3. DISASSEMBLY
Rated output level 440 mV at load impedance 3-1. Cabinet (Rear) Section ........................................................ 5
47 kilohms
Optical digital output (optical output connector)
3-2. Case (Lower) Section .......................................................... 6
Wave length: 630 - 690 nm 3-3. Tape Mechanism Deck, Line Board .................................... 6
Maximum power output 3-4. Cabinet (CD) Section .......................................................... 7
10 W + 10 W 3-5. CD, System Board ............................................................... 7
Power requirements
For personal component system: 3-6. RDS Board, LCD Section ................................................... 8
230 V AC, 50 Hz 3-7. Optical Pick-up Section ....................................................... 8
For remote commander: 3-8. Rear Chassis (Speaker) Assy ............................................... 9
3 V DC, 2 R6 (size AA) batteries
Power consumption
3-9. Power Amp, Terminal, Jack Board ...................................... 9
AC 35 W 3-10. Power Board ...................................................................... 10
Dimensions (incl. projecting parts) 3-11. Rear Chassis (Woofer Speaker) Assy ................................ 10
Player: approx. 130 × 211 × 200 mm (w/h/d) 3-12. S/Woofer Amp Board ........................................................ 11
(5 1/8 × 8 3/8 × 7 7/8 inches)
Left speaker: approx. 130 × 210 × 235 mm 3-13. Woofer Power Board ......................................................... 11
(w/h/d) (5 1/8 × 8 3/8 × 9 3/8 inches)
Right speaker: approx. 130 × 210 × 200 mm 4. MECHANICAL ADJUSTMENTS ............................... 12
(w/h/d) (5 1/8 × 8 3/8 × 7 7/8 inches)
Mass
Player: approx. 1.7 kg (3 lb. 12 oz.) 5. ELECTRICAL ADJUSTMENTS
Left speaker: approx. 3.2 kg (7 lb. 1 oz.)
Right speaker: approx. 1.6 kg (3 lb. 9 oz.)
Tape Section .......................................................................... 12
Supplied accessories Tuner Section ......................................................................... 14
Remote commander RMT-C305AD (1) CD Section ............................................................................ 16
FM lead aerial (1)
MW/LW loop aerial (1)
Audio connecting cord (2) 6. DIAGRAMS
6-1. IC Pin Description ............................................................. 20
Design and specifications are subject to change without 6-2. Circuit Boards Location .................................................... 21
notice.
6-3. Block Diagram Tuner Section ....................................... 23
6-4. Block Diagram CD Section ........................................... 25
6-5. Block Diagram Tape Section ........................................ 27
6-6. Printed Wiring Board Tuner Section ............................. 29
6-7. Schematic Diagram Tuner Section ................................ 31
6-8. Printed Wiring Boards RDS Section ............................. 33
6-9. Schematic Diagram RDS Section ................................. 35
6-10. Printed Wiring Boards CD Section ............................... 37
6-11. Schematic Diagram CD Section .................................... 39
6-12. Printed Wiring Boards Main Section ............................ 42
6-13. Schematic Diagram Main Section ................................. 45
6-14. Printed Wiring Boards Control Section ......................... 48
6-15. Schematic Diagram Control Section ............................. 51
6-16. Printed Wiring Boards Woofer Speaker Section ........... 55
6-17. Schematic Diagram Woofer Speaker Section ............... 57
6-18. Printed Wiring Boards Power Amplifier Section .......... 59
6-19. Schematic Diagram Power Amplifier Section .............. 61
7. EXPLODED VIEWS
7-1. Case Section ...................................................................... 68
7-2. Cabinet (Front) Section ..................................................... 69
7-3. Cabinet (CD) Section ........................................................ 70
7-4. Optical Pick-up Section ..................................................... 71
7-5. Tape Mechanism Deck Section-1 ...................................... 72
7-6. Tape Mechanism Deck Section-2 ...................................... 73
7-7. Speaker (L) Section ........................................................... 74
7-8. Speaker (R) Section ........................................................... 75
SAFETY-RELATED COMPONENT WARNING!!
7-9. Woofer Speaker Section .................................................... 76
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE 8. ELECTRICAL PARTS LIST ........................................ 77
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
LASER DIODE AND FOCUS SEARCH OPERATION
CHUCK PLATE JIG ON REPAIRING
CHECK
On repairing CD section, playing a disc without the lid (CD), use 1. Turn OPERATE switch on with to disc inserted and press
Chuck Plate Jig. FUNCTION button to CD position.
· Code number of Chuck Plate Jig: X-4918-255-1 2. Open the lid (CD).
3. Turn on S801 as following figure.
4. Press the ( (CD) button.
5. Confirm the laser diode emission while observing the objecting
lens. When there is no emission, Auto Power Control circuit or
Optical Pick-up is broken.
Objective lens moves up and down three times for focus search.
S801
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 pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
This Compact Disc player is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT table is
location on the rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
3
SECTION 2
GENERAL
2-1. LOCATION OF CONTROLS
upper side view
5 1
4 3 2
front side view
6
7
8
16
9
10 17
11
18
12
13 19
14 20
21
22
23
15
25 24
1. 6 PUSH OPEN/CLOSE button (CD) 14. RADIO operation buttons
2. PLAY MODE MONO/ST ISS button BAND button
3. PGM SET AUTO PRESET button PRESET button
4. SOUND button PRESET + button
5. 2 (Headphones) jack 15. OPTICAL DIGITAL OUT (CD) jack
6. RDS display window 16. VOLUME +/ button
7. OPERATE (power) button 17. DISPLAY ENTER/MEM button
8. Display window 18. =/+, TUNE /+ button
9. Remote sensor window 19. 0/) button
10. FUNCTION button 20. CD operation buttons
11. TAPE operation buttons ( (Playback) button
9 (Reverse side playback) button P (Pause) button
( (Front side playback) button p (Stop) button
p (Stop) button 21. 6 PUSH (cassette holder open) button
12. DIR MODE button 22. Cassette holder
13. r/P (Recording/pause) button 23. OPEN $ knob
24. LINE OUT jack
25. LINE IN jack
4
SECTION 3
DISASSEMBLY
· The equipment can be removed using the following procedure.
Set Cabinet (rear) Case (lower) Cabinet (CD) CD, System RDS board, LCD section
section section section board Optical pick-up section
Tape mechanism deck, Line board
Rear chassis (speaker) assy Power Amp, Terminal, Jack board Power board
Rear chassis (woofer speaker) assy S/Woofer Amp board Woofer power board
Note : Follow the disassembly procedure in the numerical order given.
3-1. CABINET (REAR) SECTION
2 KTP 3x10
5 KH312
3 BVTP 3x10
1 KTP 3x10
6 cabinet (rear) section
4 BVTP 3x10
5
3-2. CASE (LOWER) SECTION
5 case (lower) section
4 BVTP 3x10
3 earth lead
1 parallel wire (27 core)
(CNP801)
2 CNP3, 301, 303, 305, 307, 310, 311
3-3. TAPE MECHANISM DECK, LINE BOARD
2 P 2.6x8
3 BVTP 3x10
4 BVTP 3x10
6 tape mechanism
deck
5 BVTP 3x10
7 LINE board
1 CNP705
6
3-4. CABINET (CD) SECTION
4 cabinet (CD) section
1 CNP705
3 CNP802, 803
2 claws
3-5. CD, SYSTEM BOARD
5 CD board
4 BVTP 3x10
3 parallel wire (9 core)
(CNP706)
9 BVTP 3x10
0 SYSTEM board
2 FFC cable 16P
(optical pick-up) 8 BTP 2.6x8
7 CNP804
1 CNP707 6 S801
7
3-6. RDS BOARD, LCD SECTION
4 P 2.6x8 3 P 2.6x8
5 RDS board
1 parallel wire (19 core)
(CNP402, 403)
2 parallel wire (19 core)
(CNP401, 404)
7 LCD section
6 BTP 2.6x8
3-7. OPTICAL PICK-UP SECTION
1 screw (2.6x16)
2 optical pick-up section
8
3-8. REAR CHASSIS (SPEAKER) ASSY
3 CNP504
4 rear chassis (speaker) assy
1 screw B tapping
2 screw B tapping
3-9. POWER AMP, TERMINAL, JACK BOARD
5 BVTP 3x10
6 BTP 3x10
9 JACK board
8 TERMINAL board
1 CNP503
3 BVTP 3x10
2 CNP505
7 POWER AMP board
4 BVTP 3x10
9
3-10. POWER BOARD
1 CNP501
4 P 4x6
5 POWER board 3 P 4x6
2 P 3x6
3-11. REAR CHASSIS (WOOFER SPEAKER) ASSY
4 CNP601
3 CNP603
5 rear chassis (woofer speaker) assy
1 screw +B tapping
2 screw +B tapping
10
3-12. S/WOOFER AMP BOARD
1 CNP605
3 BVTP 3x10 4 BTP 3x10
2 CNP602
5 S/WOOFER AMP board
3-13. WOOFER POWER BOARD
1 CNP606
2 P 4x6
3 P 4x6
4 WOOFER POWER board
11
SECTION 4 SECTION 5
MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS
PRECAUTION TAPE SECTION 0 dB = 0.775 V
1. Clean the following parts with a denatured-alcohol-moistened
swab: 1. The adjustments should be performed in the order given in the
record/playback/erase head pinch roller service manual. (As a general rule. Playback circuit adjustment
rubber belts capstan should be completed before performing recording circuit ad-
idlers justment.)
2. Demagnetize the record/playback/erase head with a head de- 2. The adjustments should be performed for both L-ch and R-ch
magnetizer. (Do not bring the head demagnetizer close to the unless otherwise indicated.
erase head.)
3. Do not use a magnetized screwdriver for the adjustments. Standard Output Level
4. After the adjustments, apply suitable locking compound to the SP OUT PHONES
parts adjusted. Load impedance 6 32
5. The adjustments should be performed with the rated power sup- Output level 0.775 V (0 dB) 0.25 V (10 dB)
ply voltage unless otherwise noted.
Torque Measurement Test Tape
Type Signal Used for
Mode Torque Meter Meter Reading
WS-48B 3 kHz, 0 dB Tape speed adjustment
30 70 g·cm
FWD P-4-A063 6.3 kHz, 10 dB Head azimuth adjustment
(0.42 1.02 oz·inch)
CQ-102C
FWD 2.0 6.0 g·cm
Back tension (0.028 0.076 oz·inch) Tape Speed Adjustment
30 70 g·cm Procedure:
REV
(0.42 1.02 oz·inch) Mode: playback
CQ-102RC
REV 2.0 6.0 g·cm
Back tension (0.028 0.076 oz·inch) digital frequency
80 170 g·cm counter
FF, REW CQ-201B test tape
(1.12 2.38 oz·inch) WS-48B
(3 kHz, 0 dB) 32
Tape Tension Measurement
set
Mode Tension Meter Meter Reading
FWD CQ-403A more than 90 g 2 (headphones) jack
REV CQ-403R (more than 3.17 oz)
Adjust so that the value on the frequency counter is 3 kHz.
Specification Values:
Digital frequency counter
2,970 to 3,030 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,970 and 3,030 Hz.
Adjustment Location:
adjustable
resistor
M691
12
Record/Playback Head Azimuth Adjustment Adjustment Location:
Procedure:
1. Mode: playback
test tape
P-4-A063
(6.3 kHz, 10 dB) level meter
32
+
set
2 (headphones) jack
2. Turn the adjustment screw for the maximum output levels. If
these levels do not match, turn the adjustment screw until both
of output levels match together within 1 dB.
forward
within
L-CH 1dB
peak
within
output 1dB
level
reverse
R-CH
peak
screw screw
position L-CH R-CH angle screwdriver
peak peak
3. Phase Check
Mode: playback
test tape
P-4-A063
(6.3 kHz, 10 dB) oscilloscope
L-CH 32
V H
set + +
R-CH 32
2 (headphones) jack
Screen pattern
in phase 45 ° 90 ° 135 ° 180 °
Good Wrong
4. After the adjustment, lock the screws with locking compound.
13
TUNER SECTION 0 dB = 1 µV FM FREQUENCY COVERAGE
Precautions in Repairing ADJUSTMENT
Note : As a tuner unit (TU1) is difficult to repair if faulty, Frequency Display 87.5 MHz 108 MHz
replace it with new one.
Reading on Digital voltmeter 1.3 V or more 9.0 V or less
· FM Section Adjustment Part
Setting:
FUNCTION button: FM
FM TRACKING ADJUSTMENT
FM RF signal
Adjust for a maximum reading on level meter.
generator
EXT ANT FM
jack (CNP2)
87.5 MHz 108 MHz
0.01 µF
set
22.5 kHz frequency MW FREQUENCY COVERAGE
deviation by 400 Hz signal ADJUSTMENT
output level : as low as possible
Frequency Display 531 kHz 1,611 kHz
Reading on Digital voltmeter 0.85 ± 0.5 V 6.8 ± 1.5 V
· MW/LW Section
Setting: Adjustment Part
FUNCTION button: MW or LW
AM RF signal
MW TRACKING ADJUSTMENT
generator Adjust for a maximum reading on level meter.
Put the lead-wire
L3 CT4
antenna close to
the set. 621 kHz 1,404 kHz
30% amplitude AM IF ADJUSTMENT
modulation by 400 Hz signal
output level : as low as possible Adjust for a maximum reading on level meter.
CFT1
· Connecting Level Meter (FM, MW and LW) 450 kHz
level meter
(range: 0.5-5 V ac) LW FREQUENCY COVERAGE
32
ADJUSTMENT
Frequency Display 153 kHz 279 kHz
set
Reading on Digital voltmeter 0.6 ± 0.4 V 7.5 ± 0.5 V
Adjustment Part L4
2 (headphones) jack
LW TRACKING ADJUSTMENT
· Connecting Digital Voltmeter (FM, MW and LW) Adjust for a maximum reading on level meter.
L5 CT5
digital 162 kHz 261 kHz
voltmeter
tuner board Adjustment Location: TUNER board (See page 15.)
TP (VT)
· Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
14
Adjustment Location:
tuner board (component side)
TP
(VT)
CFT1
AM IF TU1
ADJUSTMENT
CT5 LW
IC1 TRACKING
L5 ADJUSTMENT
L4 CT4 L3
LW
MW
FREQUENCY
TRACKING
COVERAGE
ADJUSTMENT
ADJUSTMENT
15
CD SECTION E-F Balance Adjustment
This adjustment is to be done when the optical pick-up is replaced.
Notes on Adjustment
1. Perform adjustment in test mode. Procedure:
After adjustments, be sure to release test mode.
2. Perform adjustments in the order given. oscilloscope
3. Use the disc (YEDS-18. Part No. 3-702-101-01) only when so (DC range)
indicated. CD board
How to Put the Set into Test Mode TP (TRACKING-Y) +
TP (VC)
1. Disconnect an AC plug cord. (Power is not applied to the set.)
2. Solder across the TEST1 terminal.
3. Close the lid (CD).
4. Connect an AC plug cord. 1. Connect the oscilloscope to TP (TRACKING-Y) and TP (VC)
on the CD board.
[SW1 BOARD] (Conductor Side) 2. Insert the disc (YEDS-18) in and close the lid (CD).
3. Put the set into test mode.
4. Press the + and = buttons to move the optical pick-up to
the center.
5. Press the ( button.
From focus searching, focus is turned ON while entering
TEST1 CLV drawing-in mode. Tracking and sled are turned OFF.
terminal 6. Adjust RV703 so that the oscilloscope traverse waveform is sym-
metrical, as shown in the figure below.
Note: Take long sweep time
for easy monitoring.
VOLT/DIV: 0.2 V (with the 10:1 probe in use.)
TIME/DIV: 1 ms
A A
How to Release the Test Mode 0V A=B 0V
1. Be sure to disconnect the AC plug cord and remove the solder B B
bridge at the TEST1 terminal connected before in setting.
A=B
2. The set thus becomes available for normal operation
Before Beginning Adjustment Adjustment value: 0.4 ± 0.2 Vp-p (A + B)
Put the set into test mode and perform the following checks.
Repair if there are any problems. 7. Release the test mode after adjustment is completed.
· Sled Motor Check Adjustment Location: CD board (See page 19.)
Press the +, = buttons and confirm that the optical pick-up
moves smoothly from the innermost to outermost circumference
and back smoothly and with no catching or abnormal noises.
+ : Optical pick-up moves to the outer circumference
= : Optical pick-up moves to the inner circumference
· Focus Search Check
1. Press the ( button. (Focus search operation is performed con-
tinuously.)
2. Look at the optical pick-up objective lens and confirm that it
moves up and down smoothly, when no catching or abnormal
noises.
3. Press the p button.
Confirm that focus search operation stops. If it does not , press
the p button again longer.
Note: When the malfunction is occurred by mis-passing other keys, turn
off the power and check again from making the test mode.
16
Focus Bias Adjustment REFERENCE
This adjustment is to be done when the optical pick-up is replaced.
Focus/Tracking Gain Adjustment
Procedure: A frequency response analyzer is necessary in order to perform this
oscilloscope
(AC range) adjustment exactly.
However, this gain has a margin, so even if it is slightly off, there is
CD board no problem. Therefore, do not perform this adjustment.
TP (RF) + Focus/tracking gain determines the pick-up follow-up (vertical and
TP (VC) horizontal) relative to mechanical noise and mechanical shock when
the 2-axis device operate.
However, as these reciprocate, the adjustment is at the point where
1. Connect the oscilloscope TP (RF) and TP (VC) on the CD board.
both are satisfied.
2. Insert the disc (YEDS-18) in and close the lid for CD.
· When gain is raised, the noise when the 2-axis device operates
3. Put the set into test mode. (See page 16.)
increases.
4. Press + and = buttons to move the optical pick-up to the
· When gain is lowered, mechanical shock and skipping occurs
center. (Move the optical pick-up to the music area on the disc
more easily.
to enable easy visibility of the eye pattern.)
· When gain adjustment is off, the symptoms below appear.
5. Press the ( button.
From focus searching, focus is turned ON while entering
CLV drawing-in mode. Tracking and sled are turned OFF. Gain
Focus Tracking
6. Press the ( button. Symptoms
[Both tracking and sled are turned ON.] · The time until music starts becomes
7. Adjust RV701 so that the oscilloscope waveform is as shown in longer for p( on automatic
the figure below. (eye pattern) selection. low low or high
(=, + buttons pressed.)
A good eye pattern means that the diamond shape ( ) in the
(Normally takes about 2 seconds.)
center of the waveform can be clearly distinguished.
· Music does not start and disc
continues to rotate for p( or
· RF signal reference waveform (eye pattern) -- low
automatic selection.
(=, + buttons pressed.)
· Sound is interrupted during PLAY.
VOLT/DIV : 0.2 V (With the 10:1 probe in use) Or time counter display stops -- low
TIME/DIV : 500 ns progressing.
· More noise during 2-axis device
high high
operation.
1.3 ± 0.2 Vp-p
When observing the eye pattern, set the oscilloscope for AC
range and raise vertical sensitivity.
8. Release the test mode after adjustment is completed.
Adjustment Location: CD board (See page 19.)
17
The following is a simple adjustment method. 8. Connect the oscilloscope to TP (TRACKING-Y) and TP (VC)
on the CD board.
Simple Adjustment 9. Adjust RV704 so that the waveform is as shown in the figure
Note: Since exact adjustment cannot be performed, remember the posi- below. (tracking gain adjustment)
tions of the controls before performing the adjustment. If the posi-
tions after the primary adjustment are only a little different, return VOLT/DIV: 1 V
the controls to the original position. TIME/DIV:2 ms
oscillosope
(DC range)
0V
CD board
TP (FOCUS-Y) +
TP (TRACKING-Y) · Incorrect Examples (fundamental wave appears)
TP (VC)
Procedure: low tracking gain
1. Keep the set horizontal. VOLT/DIV: 1 V
If the set is not horizontal, this adjustment cannot be performed TIME/DIV: 2ms
due to the gravity against the 2-axis device.
2. Connect the oscilloscope TP (FOCUS-Y) and TP (VC) on the 0V
CD board.
3. Insert the disc (YEDS-18) in and close the lid for CD.
4. Put the set into test mode. (See page 16.)
5. Press the ( button. high tracking gain
From focus searching, focus is turned ON while entering high fundamental wave
than for low gain
CLV drawing-in mode. Tracking and sled are turned OFF.
6. Press the ( button. VOLT/DIV: 1 V
[Both tracking and sled are turned ON.] TIME/DIV: 2ms
7. Adjust RV702 so that the waveform is as shown in the figure
below. (Focus gain adjustment)
0V
VOLT/DIV: 100 mV
TIME/DIV:2ms
100 mV
Note:
0V VOLT/DIV: with the 10:1 probe in used.
10. Release test mode after adjustment is completed.
· Inconnect Examples (DC level changes more than on adjusted
waveform) Adjustment Location: CD board (See page 19.)
low focus gain
VOLT/DIV: 100 mV
TIME/DIV:2ms
250 mV
0V
high focus gain
VOLT/DIV: 100 mV
TIME/DIV:2ms
100 mV
75 mV
0V
18
Connection and Adjustment Location:
CD board (conductor side)
TP TP
(RF) (FOCUS-Y)
RF
IC701
X
TRACKING
VC
Y Y FOCUS
X
TP TP
(TRACKING-Y) (VC)
CD board (component side)
RV703
E-F BALANCE
RV701 ADJUSTMENT RV704
FOCUS BIAS TRACKING GAIN
ADJUSTMENT ADJUSTMENT
RV702
FOCUS GAIN
ADJUSTMENT
CNP706
CNP701
19
SECTION 6
DIAGRAMS
6-1. IC PIN DESCRIPTION
· IC801 CXP83120A-022Q (SYSTEM CONTROL, LCD DRIVE)
Pin No. Pin Name I/O Pin Description
1 AC CHK I AC check input
2 C-SCOR I CD-SCOR input
3 RMC I Remote commander input
4 C-XRST O CD system reset output
5 C-XLAT O CD DSP (IC702) command latch output
6 C-DAT O CD DSP (IC702) command data output
7 C-CLK O Clock output for CD DSP (IC702) command
8 C-DOOR I Open/close detection input ("L": close, "H": open)
9 328/332 I 328/332 select input (Fixed at "H".)
10 C-SENS I CD-SENS input
11 C-SQCK O Clock output for CD SUB-Q.
12 C-SQSO I CD SUB-Q input
13 T-BIAS I Tape REC BIAS input
14 -- -- Not used. (Open)
15 T-REC I Tape REC input
16 T-SOL O Plunger control output
17 T-MODE O HEAD switching output
18 T-AMS I AMS sensitivity switching
19 T-MCON O Motor control output ("H": Motor ON)
20 P-CON O Power on/off control output
21 V-CLK O Volume clock output
22 V-DAT O Volume data output
23 V-CE O Electrical volume (IC302) chip enable output
24 R-ST I Stereo detection input
25 R-COUNT I Tuner PLL IC count input
26 R-DAT O Tuner PLL IC data output
27 R-CLK O Tuner PLL IC clock output
28 R-CE O Tuner PLL IC chip enable output
29 9K/10K I 9K/10K select input (Fixed at "H".)
30 T-STAT I Tape detection input
31 34 KEY-0 3 I Key return signal input
35 INIT O Initial setting output (Not used.)
36 SIMUKE I Destination setting terminal (Fixed at "H".)
37 SFC O Shift clock ON/OFF out
38 RST I Reset input
39 EXTAL1 I Clock oscillation input (4.19 MHz)
40 XTAL1 O Clock oscillation output (4.19 MHz)
41 VSS -- Ground (for A/D converter)
42 XTAL2 O Clock oscillation output (Not used.)
43 EXTAL2 I Clock oscillation output (Fixed at "L".)
44 AVREF I Reference voltage input (for A/D converter)
45 AVSS -- Ground (for A/D converter)
46 VL O LCD bias resistor current control terminal (Cut off at standby)
47 49 VLC3 1 -- LCD bias power supply terminal
50 53 COM0 3 O LCD common signal output terminal
54 77 SEG0 23 O LCD segment signal output terminal
78 84 NC -- Not used. (Open)
85 87 -- -- Not used. (Open)
88 BL-CONT O LCD Back light control output
89 VDD -- Power supply (+5 V)
20
Pin No. Pin Name I/O Pin Description
90 NC -- Connected to the power supply.
91 VSS -- Ground
92 TX O Crystal connection for clock oscillation. (32.768 kHz)
93 TEX I Crystal connection for clock oscillation. (32.768 kHz)
94 C-MUTE O Mute output for CD.
95 B-MUTE O Mute output for Tuner.
96 A-MUTE O Mute output for Audio.
97 ISS1 I ISS1 switch input
98 ISS2 I ISS2 switch input
99 T-END I Tape end detection input
100 NC -- Not used. (Open)
6-2. CIRCUIT BOARDS LOCATION
Main Section
SYSTEM board
RDS board
REGULATOR board
SW2 board
CD board
H/P board
CD MOTOR board
RDS.LCD board
LAMP1 board
LAMP2 board
SW1 board AUDIO board
HEAD board
SW board
LINE board
TUNER board
21
Speaker (L) Section
TERMINAL board JACK board
POWER AMP board
POWER board
Woofer Speaker Section
S/WOOFER AMP board
S/WOOFER AMP2 board
OUTLET board
AC OUTLET2 board
LEVEL board
WOOFER POWER board
22
PMC-D407L
6-3. BLOCK DIAGRAM -- TUNER SECTION --
TU1
TUNER UNIT
FM/AM RF AMP, OSC, IF AMP, DET
OSC OUT
IC1
IF OUT
ANT
VCC
VT
1 5 8 6 7
FM DET MPX L OUT
CNP2
EXT ANT
CF1 IF AMP CF2
6
IF IN FM
DET
FM/AM OUT
BUFFER
17 T1 16
IN FM
MPX R OUT
11 L-CH
A TAPE SECTION
Q4 12 R-CH (Page 27)
FM IF MUTE
Q8
IF
FM B+SW RADIO7.5V BUFFER
Q24
AM
DET
ST-IND
MO-ST
IF OUT
BAND