Onkyo FR-155 User manual

FR-155
Ref. No. 3662
MODEL FR-155
092000
CD/MDTUNER AMPLIFIER
Silver model
UDT 120V AC, 60Hz
UGT 220 -230V AC, 50/60Hz
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
TABLE OF CONTENTS
Specifications -----------------------------------------------------------
Caution on replacement of optical pickup ---------------------------
Protection of eyes from laser beam during servicing ---------------
Laser Warning Label----------------------------------------------------
Service procedures -----------------------------------------------------
Front panel view --------------------------------------------------------
Connecting to Other Components------------------------------------
Remote controller -------------------------------------------------------
Setting the day of the Week and the Time----------------------------
IC Block diagram and descriptions -----------------------------------
Microprocessor Connection Diagram---------------------------------
Microprocessor Terminal Description--------------------------------
Operation of the Microprocessor--------------------------------------
MD Mechanism Exploded view-------------------------------------
MD Mechanism Disassembly ----------------------------------------
MD Mechanism Reassembly ----------------------------------------
MD Adjustment Procedures ------------------------------------------
MD Mount View / Messages--------------------------------------------
CD Mechanism Exploded View ---------------------------------------
CD Adjustment Procdedure-------------------------------------------
Clock Adjustment Procdedure-----------------------------------------
Handling of Pickup-----------------------------------------------------
Chassis Exploded View Parts List------------------------------------
Chassis Exploded View ------------------------------------------------
Block Diagram----------------------------------------------------------
Block Diagram (Power Supply Section)------------------------------
Schematic Diagram (Amplifire Section)-----------------------------
Printed Circuit Board View 1------------------------------------------
Schematic Diagram (CD&Microprocessor Section)----------------
Printed Circuit Board View 2------------------------------------------
Schematic Diagram (Power Supply Section)-----------------------
Printed Circuit Board View 3------------------------------------------
Printed Circuit Board View Parts List--------------------------------
Wiring View-------------------------------------------------------------
Packing View Parts List------------------------------------------------
2
2
3
3
3
4
5
6
6
7
15
16
17
18~19
20,21
22
23~25
26
27,28
29
30
31
32
33
35
37
39
41
43
45
47
49
51~54
55
57

FR-155
SPECIFICATIONS
2
General
Power supply AC 220-230 V, 50/60 Hz
AC 120V, 60 Hz
Power consumption 63 W (220-230V, 50/60 Hz)
82 W (120 V, 60 Hz)
(Standby) 7 W
(Energy Save) 1.5 W
Clock precision
monthly error: 30 seconds
(at 25 degrees Celsius)
Dimensions (W ×H ×D) 205 ×154 ×356 mm
8-1/16" ×6-1/16" ×14"
Weight 5.5 kg, 12.1 lbs
Amplifier
Power output 2 ×26 W at 4 WEIAJ
2 ×21 W at 6 WEIAJ
Rated Power
2 ×19 W min, RMS at 4 W
1 kHz no more than
0.2 %THD
Dynamic power 2 ×23 W at 4 W
Total harmonic distortion 0.4 % at rated power
IM distortion 0.2 % at rated power
Damping factor 25 at 8 Ω
Sensitivity and impedance LINE, TAPE:
150 mV, 50 kW
CDR: 150 mV, 50 kW
Frequency response 10 to 50,000 Hz : +0dB / -3 dB
Tone Control S.BASS1: +4 dB at 40 Hz
S.BASS2: +8 dB at 50 Hz
S.BASS3: +4 dB at 10 kHz/
+8 dB at 50 Hz
Signal to noise ratio LINE, CDR, TAPE: 100dB
(IHF-A)
Muting 50 dB
CD player
Signal readout system Optical non-contact
Frequency response 10 Hz to 20 kHz ( 3 dB)
Wow and flutter Below threshold of
measurability
MD recorder
Signal readout system Optical non-contact
Recording time 320 minutes maximum
(at LP4 mode)
Frequency response 10 Hz to 20 kHz ( 3 dB)
Wow and flutter Below threshold of
measurability
Tuner
Tuning range FM: 87.50 to 108.00 MHz
(50 kHz steps)
AM: 522 to 1611 kHz
(9 kHz steps)
Usable sensitivity FM Mono:11.2 dBf,
1.0 µV (75 WIHF)
Stereo:17.2 dBf,
2.0 µV (75 WIHF)
AM: 30 µV
50 dB quieting sensitivity FM Mono:17.2 dBf,
2.0 µV (75 W)
Stereo:37.2 dBf,
20.0 µV (75 W)
Capture ratio 2.0 dB
Image rejection ratio FM: 85 dB
AM: 40 dB
IF rejection ratio FM: 90 dB
AM: 40 dB
Signal to noise ratio FM Mono : 73 dB IHF
Stereo : 67 dB IHF
AM: 40 dB
Selectivity FM: 50 dB
( 300 kHz at 40 kHz devi.)
Harmonic distortion FM: Mono: 0.7 %
Stereo: 0.3 %
AM: 0.7 %
Frequency response FM:
30 to 15,000 Hz ( 1.5 dB)
Stereo separation FM: 40 dB at 1,000 Hz
FM:
30 dB at 100 to 10,000 Hz
Specifications and features are subject to change without noitce.
CAUTION ON REPLACEMENT OF OPTICAL PICKUP
The laser diode in the optical pickup block is so sensitive to
static electricity, surge current and etc., that the components
are liable to be broken down or its reliability remarkably
deteriorated.
During repair,carefully take the following precautions.
(The following precautions are included in the service
parts.)
PRECAUTIONS
1.Ground for the work-desk.
Place a conductive sheet such as a sheet of copper
(with impedance lower than 10 Mohm) on the work-
desk and place the set on the conductive sheet so that
the chassis can be grounded.
2.Grounding for the test equipments and tools.
Test equipments and toolings should be grounded in
order that their ground level is the same the ground of
the power source.
3. Grounding for the human body.
Be sure to put on a wrist-strap for grounding whose
other end is grounded.
Be particularly careful when the workers wear
synthetic fiber clothes, or air is dry.
4. Select a soldering iron that permits no leakage and
have the tip of the iron well-grounded.
5. Do not check the laser diode terminals with the
probe of a circuit tester or oscilloscope.
.

FR-155
3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs a laser. Therefore, be sure to follow carefully
the instructions below when servicing.
WARNING!!
SERVICE WARNING : DO NOT APPROACH THE
LASER EXIT WITH THE EYE TOO CLOSELY.
IN CASE IT IS NECESSARY TO CONFIRM LASER
BEAM EMISSION, BE SURE TO OBSERVE FROM
A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE
OPTICAL PICK-UP BLOCK.
Laser Diode Properties
Material: GaAS/GaALAs
Wavelength: 780nm
Emission Duration: continuous
Laser output: max. 0.5mW*
*This output is the value measured at a distance about 1.8mm
from the objective lens surface on the Optical Pick-up Block.
LASER WARNING LABEL
The label shown below are affixed.
1. Warning label 2. Class 1 label
"CLASS 1 LASER
PRODUCT"
LUOKAN 1
LASERLAITE
KLASS 1
LASER APPARAT
SERVICE PROCEDURE
1. Replacing the fuses 3. Safety-check out
(Only U.S.A. model)
After correcting the original service problem perform the
follwing safety check before releasing the set to the customer
Connect the insulating-resistance tester between the plug of
power supply cord and terminal GND on the back panel.
Specifications: More than 10Mohm at 500V
REF.NO. PART NO. DESCRIPTION
F901 252157 1.25A-UL/T-237, Fuse <DT>
252083 0.4A-SE-EAW, Fuse <GT>
NOTE : <DT> : 120 V model only
<GT> : 220 V~230 V model only
This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse , For fuse rating, refer to
the marking adjest to the symbol.
Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
1. Press and the hold down the CD STOP button , then press the
STANDBY/ON button.
2. After " All lighting " is displayed, the preset memory and each
mode stored in the memory, are initialized and will return to the
factory settings.
3. Press the STANDBY/ON button.
4. Unplug the AC plug from the wall outlet.
2. To initialize the unit
4. Memory Preservation
This unit does not require memory preservation batteries. A built-in
memory power back-up system preserves the contents of the
memory during power failures and even when the unit is un-plugged.
The unit must be plugged in order to charge the back-up
system.
The memory preservation period after the unit has been unplugged
varies depending on climate and placement of the unit. On the
average, memory contents are protected over a period of a few
weeks after the last time the unit has been unplugged. This period
is shorter when the unit is exposed to a highly humid climate.
5. Changing the AM band step
With the exception of the worldwide models, a tuning step selector
switch is not provided. When you change the band step, change
the parts as shown below.
To 10kHz To 9kHz
R748 open 1 kohms
R749 1 koms open
R748 and R749 on the microprocessor PC board (NADG-6933)

FR-155
4
MD disc slot
Remote control sensor
CD disc tray
PHONES jack
STANDBY/ON button
REC MODE switch
CD DUBBING button
MD REC button
MD button
MD button
MD button
CD/MD button
VOLUME control FM/AM button
OTHER INPUTS button
CD button
CD button
CD button
DISPLAY button EDIT/CLEAR/NO button
REPEAT/YES button
MULTI JOG dial
TIMER button
/ buttons
TUNING / buttons
MODE button
AUTO/MONO button
FRONT PANEL VIEW
ENERGY SAVE button
/indicator
SOURCE indicator
CD indicator
TIMER indicator MD indicator
MD/CD setting indicators
Multi-purpose display
CH (channel) indicator
When lit, the indicators show
what the mulit-purpose display
( Multi-purpose display) above
them is currently displaying.
Indicators for radio frequency
information
TOC indicator
MD operation indicators
DUB indicator
CD operation indicators
Playback mode indicators
DIGITAL indicator
LEVEL-SYNC indicator
MUTING indicator
Recording level indicator
Timer indicators
DISPLAY
DISCRETE OUTPUT STAGE
WIDE RANGE AMPLIFIER
TECHNOLOGY
CD/MD TUNER AMPLIFIER
VOLUME
ACOUSTIC
PRESENCE
MIN MAX
STANDBY/ON
DISC LOADING MECHANISM
FM/AM
OTHER
INPUTS
CD DUBBING
AUTO/MONO
PHONES
EDIT/CLEAR
DISPLAY
REPEAT
NO
YESTUNING
TIMER
PUSH TO ENTER
MULTI JOG
MODE
CD/MD
REC
REC MODE
SP
ENERGY SAVE
MONO
LP2
LP4
SLEEP
ONCE
W.DAY
W.END
REC
SOURCE CD TIMER MD MD
CH
CD
MUTING LEVEL-SYNC DIGITAL CHAIN
REPEAT
RANDOM
DISC TRACK ELAPSED REMAIN TITLE
TUNEDSTEREOAUTOMONO
CD MD TOC
DUB
- 40 - 20 -10 0 OVER- 6 - 2-
L
R1 TR MEMORY
ACOUSTIC PRESENCE

FR-155
5
PRE OUT
SUB
WOOFER
Connecting a subwoofer
The FR-155 has a SUBWOOFER PRE OUT jack. Connect
an active subwoofer (a subwoofer that contains an amplifier),
or connect an amplifier to the FR-155, then connect a non-
active subwoofer to the amplifier.
Active subwoofer
(with a built-in amplifier)
Subwoofer
(without a built-in amplifier)
: Signal flow
Amplifier
Connecting a DVD player
In addition to the optical digital audio connections,you must also
make analog connections.To connect to the Onkyo DVD player, be
sure to connect to the LINE-1 jacks with the audio connection cable,
not the LINE-2 jacks.
Digital
audio
output
Analog
audio output
L R
Audio connection
cable
Optical fiber
audio cable
:Signal flow
FR-155's rear panel
DVD player
OUT IN REMOTE
CONTROL PR
DIGITAL S
WO
OPTICAL
OUT
(REC)(
PL
LINE-1 LINE-2 TAPE
L
R
white
red
Connecting an Onkyo stereo
cassette tape deck
The illustration below describes the connections to an Onkyo stereo
cassette tape deck. To connect to another cassette tape deck, connect the
TAPE OUT (REC) and IN (PLAY) jacks of the unit to the INPUT (REC) and
OUTPUT (PLAY) jacks of the cassette tape deck, respectively.
FR-155's rear panel
Audio
connection
cable
cable supplied with
the Onkyo stereo
cassette tape deck
:Signal flow Onkyo stereo cassette
tape deck rear panel
OUT IN REMOTE
CONTROL PRE OUT
DIGITAL SUB
WOOFER
OPTICAL
OUT IN OUT IN
(REC)(
PLAY)( PLAY)(REC)
LINE-1 LINE-2 TAPE
L
R
L
R
CDR
L
R
(REC) (PLAY)
INPUT OUTPUT
REMOTE
CONTROL
Audio connection
cable
white
red
Connecting an Onkyo compact
disc recorder
The following diagram shows how to connect an
optional Onkyo compact disc recorder to the FR-155.
Connect its CDR OUT (REC) jacks and IN (PLA Y)
jacks to the disc recorderÕs INPUT (REC) jacks and
OUTPUT (PLAY) jacks respectively.
The jack connection enables you to use the
following functions:
¥ You can control a connected Onkyo compact disc
recorder from the FR-155's remote controller.
¥ When the connected Onkyo compact disc recorder
plays bac k, the Input Selector on the FR-155 is
automatically switched to CD-R.
¥ To connect both CD recorder and a cassette tape
deck to the FR-155, connect the connectors of
both devices.
: Signal flow
Jacks on the compact disc
recorder's rear panel
FR-155's rear panel
red
white
Audio connection cable
An cable that comes
with the compact disc recorder
OUT IN REMOTE
CONTROL PRE OUT
DIGITAL SUB
WOOFER
OPTICAL
OUT IN OUT IN
(REC)(
PLAY)( PLAY)(REC)
LINE-1 LINE-2 TAPE
L
R
L
R
CDR
OPTICAL
INPUT1 INPUT2
DIGITAL
OUTPUT
L
R
L
R
KL
INPUT
(REC) OUTPUT (PLAY)
ANALOG
REMOTE
CONTROL
Optical fiber audio cable
Connecting a portable MD player
Refer to the portable MD playerÕs Instruction Manual.
Audio
connection
cable
: Signal flow
OUT
(REC
LINE-1 LINE-2 T
L
R
white
red
CONNECTING TO OTHER COMPONETS
SPEAKERS
CAUTION:SPEAKER IMPEDANCE
4 OHMS MIN./SPEAKER
+–
+–
FM
75
OUT IN REMOTE
CONTROL PRE OUT
DIGITAL
ANTENNA
SUB
WOOFER
OPTICAL
OUT IN OUT IN
(REC)(
PLAY)( PLAY)(REC)
LINE-1 LINE-2 TAPE
L
R
L
R
L
R
CDR
AM
Rear Panel View

FR-155
6
STANDBY/ON button
CDR/TAPE/LINE/DIGITAL buttons
CD button
MD button
Number buttons
/TAPE REW button
MUTING button
button
MODE button
REPEAT button
CLEAR button
SCROLL button
SLEEP button
CLOCK CALL button
FM/AM buttons
A.PRESENCE button
/TAPE FF button
VOLUME / buttons
button
CD operation buttons
MD operation buttons
Operation buttons for an Onkyo CDR
Operation buttons for an
Onkyo stereo cassette tape deck
REMOTE CONTROLLER
MUTING
STANDBY/ON SLEEP CLOCK
CALL
DIGITAL
CDR TAPE LINE1 LINE2
INPUT
CD MD FM AM
1 2 34
8765
9 10/0 --/---
TAPE REW
A.PRESENCE
TAPE FF
REMOTE CONTROLLER
RC-434S
CD/MD/CDR
MODE
REPEAT
CLEAR
SCROLL
CD
MD
CDR
TAPE
V
O
L
U
M
E
U
P
V
O
L
U
M
E
D
O
W
N
1Press TIMER repeatedly until
"Clock" appears in the display.
2Press MULTI JOG.
You can now set the day of the week.
If you prefer the 12-hour display,press
DISPLAY.
3Turn MULTI JOG to select the
current day of the week.
4Press MULTI JOG to confirm thesetting.
You can now set the time .
5Turn MULTI JOG to set the current time .
(This example shows the 24-hour display.)
6Press MULTI JOG in sync with the time
The clock starts operating and a dot
indicating seconds starts to flash.
To cancel the clock setting
Press EDIT/CLEAR /NO.
Checking the time and the day of the week
To check the time and the day of the week, press
TIMER to display "Clock, then press DISPLAY.The
display now indicates the day of the week and the
current time.Alternatively,press CLOCK CALL on the
remote controller. To switch between the 12-hour and
24-hour displays,press DISPLAY while the current time
is indicated on the display.
TIMER
SLEEP SOURCE CD TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
S.BASS
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN T ITLE RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
PUSH TO ENTER
MULTI JOG
SLEEP SOURCE C D TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
S.BASS
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN T ITLE RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
SLEEP SOURCE C D TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
S.BASS
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN T ITLE RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
PUSH TO ENTER
MULTI JOG
PUSH TO ENTER
MULTI JOG
SLEEP SOURCE C D TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
S.BASS
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN T ITLE RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
PUSH TO ENTER
MULTI JOG
PUSH TO ENTER
MULTI JOG
You can select either the 12-hour display or y. (This section explains how
to set the time based on the 24-hour display.)
STANDBY/ON SLEEP CLOCK
CALL
DIGITAL
CDR TAPE LINE1 LINE2
INPUT
CD MD FM AM
1 2 34
CLOCK CALL
SLEEP SOURCE C D TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
S.BASS
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN T ITLE RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
SLEEP SOURCE C D TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
S.BASS
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN T ITLE RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
signal.
1
DISPLAY
24-hour displa
2-6
EDIT/
CLEAR/NO
SETTING THE DAY OF THE WEEK AND THE TIME

FR-155
7
I C BLOCK DIAGRAM AND DESCRIPTIONS
Q401:TC9273N-004 (Analog function switch)
Q447:TC9162AN (Analog function switch)
2
3
4
5
6
7
8
9
10
11
12
27
26
25
24
23
22
21
20
19
18
17
128
VSS VDD
13 14 15 16
GND CK DATA STB
LEVEL SHIFT AND
SHIFT REGISTER
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
OUT
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
OUT
10BITS LATCH CIRCUIT 10BITS LATCH CIRCUIT
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
26
27
28
14
1
VSS GND VDD
S1
S2
S3
COM1
S4
S5
S6
COM2
S7
S8
COM3
ST
S1
S3
S2
COM1
S4
S5
S6
COM2
S7
S8
COM3
CK
DATA
LEVEL SHIFTER LEVEL SHIFTER
LATCH CIRCUIT
LATCH CIRCUIT
SHIFT REGISTER
Q103,Q181:TA7291S (Motor driver)
INPUT OUTPUT
IN1
0
1
0
1
IN2
0
0
1
1
OUT1
H
H
L
OUT2
L
H
L
MODE
STOP
CW/CCW
CCW/SW
BRAKE
CCW : Counter clockwise direction
CW : Clockwise direction
Vcc
REG
PROTECTOR
IN1 IN2 GND
OUT1
OUT2
Vss
Vref
28
159
3
6
7

FR-155
8
Q351:CXD2589Q (CD Digital Signal Processor)
Block Diagram
EFM
demodurator
Clock
Generator
OSC
Error
Corrector
D/A
Interface Serial-In
Interface
Over Sampling
Digital Filter
Timing
Logic
3rd-Order
Noise Shaper
PWM PWM
16K
RAM
Digital
OUT
Digital
CLV
CPU
Interface
Servo
Auto
Sequencer
Asymmetry
Corrector
Digital
PLL
Sub Code
Processor
C4M
RF
ASYI
ASYO
BIAS
XPCK
FILO
FILI
PCO
CLTV
FOK
SEIN
CNIN
DATO
XLTO
CLKO
SENS
DATA
XLAT
CLOK XLON
SCOR
SBSO
EXCK
SQSO
SQCK
MDP
DOUT
LOUT2
AIN2
AOUT2
LOUT1
AIN1
AOUT1
XTSL VPCO VCKI V16M VCTL XUGF GFS EMPH WFCK C2PO LRCK PCMD BCK EMPHI LRCKI PCMDI BCKI SYSM
RMUT
LMUT
XTAI
XTAO
PWMI
XRST
TES1
TEST
SPOA
SPOB
40
39
38
37
36
35
31
33
41 42
43 44
47
48
51 50
49
52
53
54 55
56
57 58 59
70
66 65
67
62
71
76
75
74
79
2
3
9
8
7
65
4
10
11
12 13 14 15 16 17
18
21
23
24
28
27
26
25
29
30
22
51 25 26 27 28 47 49 54 56 50 39 41 43 55 40 42 44 62
24
23
79
2
3
70
71
52
35
37
38
36
48
30
31
29
33
18
10
11
12 13 14 6 7 8 9 15 16 17 57 58 59 5 4 21 22 53 74 75 76 67 66 65

FR-155
9
PIN Description
Pin
No. Symbol I/O Description Pin
No. Symbol I/O Description
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
VSS
LMUT
RMUT
SQCK
SQSO
SENS
DATA
XLAT
CLOK
SEIN
CNIN
DATO
XLTO
CLKO
SPOA
SPOB
XLON
FOK
VDD
VSS
MDP
PWMI
TEST
TES1
VPCO
VCKI
V16M
VCTL
PCO
FILO
FILI
AVSS
CLTV
AVDD
RF
BIAS
ASYI
ASYO
LRCK
LRCKI
PCMD
PCMDI
—
O
O
I
O
O
I
I
I
I
I
O
O
O
I
I
O
I
—
—
O
I
I
I
O
I
O
I
O
O
I
—
I
—
I
I
I
O
O
I
O
I
GND
Left-channel zero detection flag.
Right-channel zero detection flag.
SQSO readout clock input.
Sub Q 80-bit serial output.
SENS output to CPU.
Serial data input from CPU.
Latch input from CPU. Serial data is latched at the
falling edge.
Serial data transfer clock input from CPU.
SENS input from SSP.
Track jump count signal input.
Serial data output to SSP.
Serial data latch output to SSP. Latched at the falling
edge.
Serial data transfer clock output to SSP.
Microcomputer extended interface (inputA).
Microcomputer extended interface (input B).
Microcomputer extended interface (output).
Focus OK input.
Used for SENS output and the servo auto sequencer.
Power supply (+5V).
GND
Spindle motor servo control.
Spindle motor external control input.
TEST pin; normally GND.
TEST pin; normally GND.
Charge pump output for the wide-band EFM PLL.
VCO2 oscillation input for the wide-band EFM PLL.
VCO2 oscillation output for the wide-band EFM
PLL.
VCO2 control voltage input for the wide-band EFM
PLL.
Master PLL charge pump output.
Master PLL (slave = digital PLL) filter output.
Master PLL filter input.
Analog GND.
Master VCO control voltage input.
Analog power supply (+5V).
EFM signal input.
Constant current input of the asymmetry circuit.
Asymmetry comparator voltage input.
EFM full-swing output (low =VSS, high = VDD).
D/A interface. LR clock output f = Fs.
LR clock input.
D/A interface. Serial data output (two's complement,
MSB first).
D/A interface. Serial data input (two's complement,
MSB first).
D/A interface. Bit clock output.
D/A interface. Bit clock input.
GND
Power supply (+5V).
XUGF output. Switched to MNT1 or RFCK output
by a command.
XPLCK output. Switched to MNT0 output by a com-
mand.
GFS output. Switched to MNT3 or XRAOF output
by a command.
C2PO output. Switched to GTOP output by a com-
mand.
Crystal selector input. Low: 16.9344MHz;
high: 33.8688MHz.
4.2336MHz output. 1/4 frequency-divided VCKI out-
put in CAV-W mode.
Digital Out output.
Outputs a high signal when the playback disc has
emphasis, and a low signal when there is no emphasis.
Inputs a high signal when de-emphasis is on, and a
low signal when de-emphasis is off.
WFCK output.
Outputs a high signal when either subcode sync S0
or S1 is detected.
Sub P to W serial output.
SBSO readout clock input.
GND
Power supply (+5V).
Mute input. Active when high.
Analog GND.
Analog power supply (+5V).
Left-channel analog output.
Left-channel operational amplifier input.
Left-channel LINE output.
Analog GND.
Power supply for master clock.
Crystal oscillation circuit input. Input the external
master clock via this pin.
Crystal oscillation circuit output.
GND for master clock.
Analog GND.
Right-channel LINE output.
Right-channel operational amplifier input.
Right-channel analog output.
Analog power supply (+5V).
Analog GND.
System reset. Reset when low.
Power supply (+5V).
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
O
I
—
—
O
O
O
O
I
O
O
O
I
O
O
O
I
—
—
I
—
—
O
I
O
—
I
O
—
O
I
O
—
—
I
—
BCK
BCKI
VSS
VDD
XUGF
XPCK
GFS
C2PO
XTSL
C4M
DOUT
EMPH
EMPHI
WFCK
SCOR
SBSO
EXCK
VSS
VDD
SYSM
AVSS
AVDD
AOUT1
AIN1
LOUT1
AVSS
XVDD
XTAI
XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
XRST
VDD

FR-155
10
VEE
VEE
TM3 TM5
TM2
TM3
FSET
TM6
TM4
VCC VCC
VCC
ISET
TN1-7 PS1-4
TTL
IIL
IIL
TTL
CC1
DFCT1
DFCT
IIL
TTL
VCC
CC1 CC2 FOK RF-I CP CB
VCC
VEE
VEE
VEE
LEVEL S
MIRR
MIRR
TGFL
LPC
IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER
DFCTO IFB1-6
BAL1-4
TOG1-4
FS1-4 TG1-2
VCC
FS1
FS2 Charge
up TG2
SRCH
TGU
TG2
FSET
TA-M
VEE
FLB
FE-O
FE-M
FOCUS
PHASE COMPENSATION
TRACKING
PHASE COMPENSATION
FOH
FOL
TGH
TGL
BALH
BALL
ATSC
TZC
FZC
LDON
LPCL
FOK
VCC
FO.BIAS
WINDOW COMP.
RF SUMMING AMP
RFTC RF-M RF-O PD LD
VEE
VCC
APC
LASER POWER CONTROL
VEE
VCC
FE AMP
IFB1
IFB2
IFB3
IFB4
IFB5
IFB6
VEE
TRK.GAIN
WINDOW COMP
TM1
TG1
FS4
DFCT
TA-O
FEO
FEI
FDFCT
FGD
DFCT
E-F BALANCE
WINDOW COMP.
TGFL
BAL3
BAL4
PD1 IV
AMP
FZC COMP.
VEE
VCC
VCC
TZC COMP.
ATSC
WINDOW
COMP.
TOG1
TOG2
TOG3
TOG4
BAL1
BAL2
VEE
E IV AMP
F IV AMP
PD2 IV
AMP
PD1 PD2
FE-BIAS
F
E
EI
TEO
VEE
LPFI
TEI
ATSC
TZC
TDFCT
VC
FZC
SL-P
SL-M
SL-O
ISET
VCC
XLT
CLK
LOCK
DATA
XRST
C.OUT
SENS1
SENS2
123456789
10 11 12 13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
2829
30
31
323334353637
3839
40
41
42
43
44
45
46
47
48
49
50
51
52
Q101:CXA1992BR (RF Signal Processing Servo Amplifier)
Block Diagram

FR-155
11
Pin Description
Pin
No. Symbol I/O Description Pin
No. Symbol I/O Description
Focus error amplifier output.
Connected internally to the window comparator input
for bias adjustment.
1 FEO O
2 FEI Focus error input.I
3
4FDFCT I Capacitor connection pin for defect time constant. FGD I Ground this pin through a capacitor for cutting the
focus servo high-frequency gain.
5 FLB IExternal time constant setting pin for boosting the
focus servo low-frequency.
6 FE_O OFocus drive output.
7 FE_M I Focus amplifier inverted input.
8 SRCH IExternal time constant setting pin for generating
focus search waveform.
9TGU I External time constant setting pin for switching track-
ing high-frequency gain.
10 TG2 IExternal time constant setting pin for switching track-
ing high-frequency gain.
11 FSET IPeak frequency setting pin for focus and tracking
phase compensation amplifier.
12 TA_M I Tracking amplifier inverted input.
13 TA_O O Tracking drive output.
14 SL_P I Sled amplifier non-inverted input.
16 SL_O O Sled drive output.
15 SL_M I Sled amplifier inverted input.
F I-V and E I-V amplifier inverted input.
Connect these pins to photo diodes F and E.
17 ISET I Connect an external capacitance to set the current
which determines the Focus search, Track jump, and
Sled kick heights.
18 VCC I Positive power supply.
19 LOCK I The sled overrun prevention circuit operates when
this pin is Low. (no pull-up resistance)
20 CLK I
22 DATA I
21 XLT I
Serial data transfer clock input from CPU.
(no pull-up resistance)
Latch input from CPU. (no pull-up resistance)
Serial data input from CPU. (no pull-up resistance)
23 XRST I Reset input; resets at Low. (no pull-up resistance)
24 C. OUT OTrack number count signal output.
25 SENS1 OOutputs FZC, DFCT1, TZC, BALH, TGH, FOH,
ATSC, and others according to the command from
CPU.
26 SENS2 O Outputs DFCT2, MIRR, BALL, TGL, FOL, and
others according to the command from the CPU.
27 FOK O Focus OK comparator output.
28 CC2 I Input for the defect bottom hold output with capa-
citance coupled.
29 CC1 O Defect bottom hold output. Connected internally to
the interruption comparator input.
30 CB I Connection pin for defect bottom hold capacitor.
31 CP I
32 RF_I I
33 RF_O O
34 RF_M I
Connection pin for MIRR hold capacitor.
MIRR comparator non-inverted input.
Input for the RF summing amplifier output with capa-
citance coupled.
RF sunning amplifier output. Eyepattern check point.
RF summing amplifier inverted input.
The RF amplifier gain is determined by the resistance
connected
between this pin and RFO pin.
35 RFTC I External time constant setting pin during RF level
control.
36 LD O APC amplifier output.
37 PD I APC amplifier input.
38 PD1 I
39 PD2 IRF I-V amplifier inverted input. Connect these pins
to the photo diode A + C and B + D pins.
40 FE_BIAS IBias adjustment of focus error amplifier.
Leave this pin open for automatic adjustment.
41 FI
42 I E
43 EI — I-V amplifier E gain adjustment.
(When not using automatic balance adjustment)
44 VEE —Negative power supply.
45 TEO O Tracking error amplifier output. E-F signal is output.
46 LPFI I Comparator input for balance adjustment.
(Input from TEO through LPF)
47 TEI ITracking error input.
48 ATSC IWindow comparator input for ATSC detection.
49 TZC ITracking zero-cross comparator input.
50 TDFCT ICapacitor connection pin for defect time constant.
51 VC O (VCC + VEE)/2 direct voltage output.
52 FZC IFocus zero-cross comparator input.

FR-155
12
Vcc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Level shift
4
BTL AMP
4
Level shift
1
BTL AMP
1
BTL AMP
3
BTL AMP
2
Level shift
3
Level shift
2
RESET
Regulator
Pin No. Pin Name Description (Function)
VCC Power supply (shorted with pin 30)
Mute ON/OFF control for all BTL AMP outputs
VIN1BTL AMP 1 input
VG1 BTL AMP 1 input (for gain control)
BTL AMP 1 output (non-inverting side)
BTL AMP 1 output (inverting side)
GND GND (minimum electric potential)
GND GND (minimum electric potential)
GND GND (minimum electric potential)
VO3 BTL AMP 2 output (inverting side)
VO4 BTL AMP 2 output (non-inverting side)
VG2 BTL AMP 2 input (for gain control)
VIN2 BTL AMP 2 input
REG OUT Connection for collector of external transistor (PNP); 5 V supply output
REG IN Connection for base of external transistor (PNP)
RES Reset output
CDReset output delay time setting (with capacitor)
VIN3 BTL AMP 3 input
VG3 BTL AMP 3 input (for gain control)
VO5 BTL AMP 3 output (non-inverting side)
VO6BTL AMP 3 output (inverting side)
GND GND (minimum electric potential)
GND GND (minimum electric potential)
GND GND (minimum electric potential)
VO7 BTL AMP 4 output (inverting side)
VO8 BTL AMP 4 output (non-inverting side)
VG4 BTL AMP 4 input (for gain control)
VIN4BTL AMP 4 input
VREF Reference voltage input for level shift circuit
VCC Power supply (shorted with pin 1)
Vcc
Vref
VIN4
VG4
Vo8
Vo7
GND
GND
GND
Vo6
Vo5
VG3
VIN3
CD
RES
Vcc
Mute
VIN1
VG1
Vo1
Vo2
GND
GND
GND
Vo3
Vo4
VG2
VI2
Reg OUT
Reg IN
Q102:LA6541D (CD 4-channel BTL Driver )
+
(4)
(3)
(5)
(6)
(12)
(11)
(16)
(1)
(2)
(10) (9)
Measurement
circuit
Differential
decoder
Bi-phase
decoder
PLL
1187.5Hz
PLL
57kHz
RDS/ARI
Reference
clock
(13) (14)
(7) (8)
120k
100k
100k
Analog
Power supply
Digital
power supply
anti-aliasing
filter
8ch Switched
capacitor filter
Comparator
RCLK
QUAL
RDATA
T2T1
XO
X1
VSS2
VDD2
VSS1
VDD1
VREF
MUX
VSS3 CMP
Pin name
Demodulator quality
Demodulator data
Reference voltage
Input
Analog power supply
GND
Comparator input
Test input
Digital power supply
Crystal oscillor
-
Demodulator clock
Function
Good data : High , bad data : Low
Refer to output data trimming
1/2 VDD1 (refer to input/output circuits)
Composite signal input
4.5V to 5.5V
-
C-junction
Open or connected to ground
4.5V to 5.5V
Connects to 4.332MHz oscillator
(refer to input/output circuit)
-
1187.5Hz clock
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
QUAL
RDATA
Vref
MUX
VDD1
Vss1
Vss3
CMP
T2
T1
VDD2
Vss2
XI
XO
(NC)
RCLK
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
Vo1
Vo2
Q171:BU1923(RDS Decoder)

FR-155
13
Q752:M66004F (FLTube Driver)
Segment
output circuit
CG ROM
(35bit 160)
CG RAM
(35bit 16)
Decoder
Decoder
Display code
register
Serial
receive
circuit Code /
command
control
circuit
Display
control
register
Clock
generator Display controller Digit
output circuit
Output port
(2bits)
code
write
RAM
write
code
select
SEG00
SEG26
SEG35
SEG27
Segment
output
P0
P1
Output
ports
Chip select
input CS
DIG00
DIG11
DIG12
DIG15
Digit
outputs
Clock
input XIN
Clock
output XOUT
Reset
input RESET
Shift clock
input
Serial data
input
SCK
SDATA
18
16
15
13
14
17
22
21
23
33
31
59
61
1
64
12
These pins are used to connect to digit pins of VFD.
RESET Reset input This pin is used to initialize the internal state on the M66004
CS Chip select input "L" : communication with the MCU is possible.
"H" : any instruction from teh MCU is neglected.
SCK Shift select input At the rising edge from "L"to"H" , input data is shifted.
SDATA Serial data input Character code or command data to display is input from MSB.
XIN,
XOUT Clock input Clock output Set oscillation frequency
DIG00 -
DIG15 Digit output
SEG00 -
SEG35 Segment output
P0,PI Output port (static operation)
VSS GND
VP Negative power supply for VFD drive.
VCC1
VCC2
Positive power supply for internal logic.
Positive power supply for high-pressure-resistant output port.
Symbol Pin name Function
Pin No.
13
14
15
16
21,
22
1-12
61-64
23-31
33-59
17,18
19
60
22
32
These pins are used to connect to segment pins of VFD.

FR-155
Q751:BJ780GNK(FLTube)
SLEEP SOURCE C D TIMER MD MD
CH
CD
CD
ONCE
W.DAY
W.END
REC
L
R
-
40
-
20
-
10 0 OVER
-
6
-
2
MUTING DIGITAL CHAIN
REPEAT DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED
1 TR MEMORY
RANDOM
LEVEL-SYNC
-
MD
DUB TOC
L
R
-
40
-
20
-
10 0 OVER
-
6
-
2
-
CD MD
S3 S4
1-1 2-1 3-1 4-1 5-1
1-2 2-2 3-2 4-2 5-2
1-7 2-7 3-7 4-7 5-7
1-6 2-6 3-6 4-6 5-6
1-3 2-3 3-3 4-3 5-3
1-5 2-5 3-5 4-5 5-5
1-4 2-4 3-4 4-4 5-4
(12G 1G)
(14G)
(13G)
B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22
B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11
S1
Col-1
Col-2
Dp
13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
S2
14G
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P33
P34
P35
P36
14G 13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
B1
B8
B12
B19
S1
B2
B9
B13
B20
S2
B3
B10
B14
B21
OVER
B4
B11
B15
B22
SLEEP
B5
ONCE
B16
W.DAY
W.END
B6
REC
S.BASS
MUTING
B18
LEVEL-SYNC
B7
DIGITAL
-
B17
-
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
SOURCE
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
-
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
CD
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
TIMER
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
Dp
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
col 2
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
MD
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
-
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
MD
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
CD
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
col 1
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
CH
CHAIN
REPEAT
1TR
MEMORY
RANDOM
DISC
TRACK
ELAPSED
REMAIN
TITLE
RDS
MONO
AUTO
STEREO
TUNED
S3
(CD)
(CD)
DUB
S4
(MD)
(MD)
(MD)
TOC
(TITLE)
-
-
-
-
-
-
-
-
-
-
-
S.BASS
14

FR-155
15
RES CS SCK DATA
1G 14G P1 P36
+5 V M
M
M
M
FM
AM
ANTENNA
MD MECHANISM
MICROPROCESSOR CONNECTION DIAGRAM
1ROTEN 2
2 ROTEN 1
3FLRESET
4GND
5SHUT DOWN
6RCREQ
7+5 V
8 MD DATA
9 RC DATA
10 S CLK
11 FLCE
12 FL DATA
13 FL CLK
14 TXD
15 RXD
16 SQSO
17 SESN
18 SQCK
19 CD CLK
20 CD DATA
RESET 60
SYS OUT 59
SYS IN 58
VOL DOWN 57
VLO UP 56
RDS DATA 55
RDS SIG 54
PLLCE 53
SD 52
STEREO 51
MODEL 1 50
FREQCAL 49
C DATA 48
C CLK 47
TU MUT 46
FCE/VCE 45
REC MUT 44
AP LED 43
SEL MUT 42
CD MUT 41
SIGNAL 80
MD REC MODE 79
K 2 78 K 1 77
K 0 76
+5 V 75 +5 V 74
GND 73
72
GND 71
CLOCK 70
CLOCK 69
+5 V 68
GND 67
MD REQ 66
SCOR 65
RDS CLK 64
POFF 63
D OUT 62
REMIN 61
21 CD XLT 22 CD RESET 23 CD POWER 24 OPEN 25 CLOSE 26 AC POWER 27 OPEN SW 28 CLOSE SW 29 SENS 2 30 ECO LED 31 REC VOL 1 32 REC VOL 2 33 GND 34 RC POWER 35 MD RESET 36 BAND 0 37 BAND 1 38 AM 10K 39 RD SEN 40
+5.6 V
+5.6 V
+5.6 V
MULTI JOG
CD
PLAY
CD
STOP
YES F.F
REW DISPLAY
TIMER
EDIT
/NO CD
EJECT
ENERGY
SAVE
STANDBY
A.PRES MODE
CD.DUB
REC
OTHER
INPUT FM
/AM MD
/CD MD STOP MD PLAY MD
EJECT
MONO
ST
LP2
LP4
REC MODE SW
13 14 15 16
1 12,60 64
GRID 23 31,33 59
SEGMENT
+5.6 V
IN2
IN1
OUT2
OUT1
1
23
7
9
Q171
BU1923
VOLUME MOTOR
DRIVER VOLUME
MOTOR
17
16
15
6
5
2
RC DATA
RC REQ
SHUT DOWN
MD REQ-2
MD CLK
MD DATA-2
CN105
Q391
BUFFER
Q752
M66004F
FL TUBE
DRIVER
Q751
FL TUBE
F901 RL901 RL902
T901
Q753
REMOTE
SENSOR
Q901
POWER
RELAY DRIVE
Q902
POWER
AMP
SWITCH
TO POWER AMP
PC BOARD
(NAAF-6930)
+B
AC IN
Q706
LED DRIVE
Q222 TC4052BP
REC LEVEL
CONTROL
Q401
TC9273N-004
INPUT
SELECTOR
Q447
TC9162AN
ACOUSTIC
PRESENCE SELECTOR
ENERGY
SAVE
LED
ACOUSTIC
PRESECE
LED
Q702
CD MUT
Q448
SEL MUT
Q223,Q224
MD REC
MUTING
Q253
TUNER MUTING
Q449 POWER
AMPLIFIRE
CONTROL
Q112
CD POWER
CONTROL
Q171 BU1923
RDS
DECODER
Q707
MUT
Q372
OUT
Q372
IN
DIGITAL
OPTICAL
RI
REMOTE
CONTROL
Q371
TC74HCT00AF
BUFFER
MD MECHA
AUX-MD IN
A MUTE
MD OUT
Q372
TC7WU04FU
BUFFER
PD
LD
E
F
AB
C
FOCUSING
COIL
TRACKING
COIL
Q112
Q114 LD DRIVE
Q101
CXA1992BR
RF SIGNAL
PROCESSING
SERVO AMP
Q102
LA6541D
FOCUS
/TRACKING
& SLED
/SPINDLE
MOTOR
DRIVER
Q351
CXD2589Q
CD DIGITAL
SIGNAL
PROCESSOR
9
8
7
6
4
5
57
79
19
15
30
19
23 26
27
18
15
21
20
21
22
24
25
14
13
12
11
10
5
6
37
36
39
38
41
42
1361615
28 3 13
10
11
25
26
20
21
S.STOP
SLED
MOTOR
SPINDLE
MOTOR
OPEN
/CLOSE SW
TRAY
MOTOR
+5.6 V
IN2
IN1
OUT2
OUT1
1
23
5
7
9
Q103 TA7291S
TRAY MOTOR DRIVER
P913B
+5.6 V Q112
Q112
to POWER
SUPPLY
NAPS-6928
P907
15
CN102
5
PLLCE
SD
STEREO
SIGNAL
X701 5MHz
D901
Q705
RESET Q703
RESET
IN
OUT
+5.6 V Q704
Q701
MPD780058GC
MICROPRCESSOR
+5 V
TUNER UNIT
MD RST
14 AMOT
Q203,Q204
MD MUT
DATA
CLK
Q443
,Q444

FR-155
16
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
MICROPROCESSORTERMINAL DESCRIPTION
Q701:MPD780058GC-8BT
PIN
No.
ROTEN2
ROTEN1
FLRESET
GND
SHUTDOWN
RCREQ
AVDD
MDDATA
RCDATA
SCLK
FLCE
FLDATA
FLCLK
TXD
RXD
SQSO
SENS
SQCK
CDCLK
CDDATA
CDXLT
CDRESET
CDPOWER
OPEN
CLOSE
ACPOWER
OPENSW
CLOSESW
SENS2
ECOLED
RECVOL1
RECVOL2
GND
RCPOWER
MDRESET
BAND0
BAND1
AM10K
RDSEN
Function
I
I
O
I
O
O
I
I
O
O
O
O
O
O
I
I
I
O
O
O
O
O
O
O
O
O
I
I
I
O
O
O
I
O
O
I
I
I
I
I
I/O
Pulse input pin 1 from rotary encoder.
Pulse input pin 2 from rotary encoder.
Reset signal output pin for FL driver IC(M66004)
Ground pin.
Output pin of power failure signal for MD mechanism microcomputer.
Serial data output pin for communication of MD microcomputer.
Power supply pin forA/D converter.
Serial transfer data input pin from MD mechanism microcomputer.
Serial transfer data output pin to MD mechanism microcomputer.
Serial transfer clock output pin to MD mechanism microcomputer.
Chip enable signal output pin for FL drover IC(M66004).
Serial data output pin for FL drover IC(M66004).
Clock data output pin for FL drover IC(M66004).
Output pin for flash writer.
Input pin for flash writer.
Input pin of subcode data from CD signal processor IC(CXD2589).
Input pin of sens data from CD signal processor IC(CXD2589).
Clock signal output pin for read out to signal processor IC(CXD2589).
Command output pin for transfer the clock signal to CD signal processor IC(CDX2589).
Command output pin for transfer the data signal to CD signal processor IC(CXD2589).
Command output pin for transfer the latch signal to CD signal processor IC(CXD2589).
Reset signal output pin for CD circuit ICs(CXD2589,CXA1992)
Control signal output pin for CD circuit.
Control signal output pin for motor driver IC of CD tray.
Control signal output pin for motor driver IC of CD tray.
Control signal output pin for relay of main power supply.
Detection signal input pin for the opening completion of CD tray.
Detection signal input pin for the closing completion of CD tray.
Sens2 signal input pin from CD servo IC(CXA1992)
Control output pin of energy save indicator.
Output pin 1 for MD recording level adjust IC.
Output pin 2 for MD recording level adjust IC.
Ground pin.
Output pin for control relay of power supply in receiver section.
Output pin of reset signal for MD mechanism.
Initializing input pin 1 for FM band.
Initializing input pin 2 for FM band.
Initializing input pin 2 for AM band step.
Initializing input pin of RDS function. (H=Function, L=Not function)
Not used.(ground)
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
CDMUT
SELMUT
APLED
RECMUT
FCE/VCE
TUMUT
CCLK
CDATA
FREQCAL
MODEL1
STEREO
SD
PLLCE
RDSSIG
RDSDATA
VOLUP
VOLDOWN
SYSIN
SYSOUT
RESET
REMIN
DOUT
POFF
RDSCLK
SCOR
MDREQ
GND
VDD
CLOCK
CLOCK
GND
GND
VDD
AVDD
K0
K1
K2
MDRECMODE
SIGNAL
Muting signal output pin for CD analog signal.
Muting signal output pin for audio section.
Control output pin of acoustic presence indicator.
Muting signal output pin for muting of MD recording signal.
Chip enable signal output pin for function ICs(T9273,TC9162).
Muting signal output pin for tuner signal.
Clock data output pin for Ics of receiver section.
Serial data output pin for Ics of receiver section.
Output pin for adjustment of main clock frequency
Initialization input pin for model set.
FM stereo broadcast detection input pin.
Broadcast detection input pin.
Chip enable signal output pin for tuner PLL IC.
Not used.
Not used.
Control output pin for motor driver IC of volume.
Control output pin for motor driver IC of volume.
System code input pin.
System code output pin.
System reset input pin.
Signal input pin from remote sensor.
Control output pin for CD/MD digital output selector. (H=CD, L=MD)
Power failure detect input pin.
Not used.
Detection signal input pin CD signal processor IC(CXD2589).
Signal input pin for communication from MD mechanism microprocessor.
Ground pin.
Power supply pin. (+5V)
Master clock connection pin.
Master clock connection pin. (connect the trimming capacitor)
Not used. (connect ground)
Not used.
Not used. (connect ground)
Power supply pin. (+5V)
Power supply forA/D converter.
Operation key-1 connection input pin.
Operation key-2 connection input pin.
Operation key-3 connection input pin.
Connect the MD recording mode serector.
Signal level input pin for automatic memory.
O
O
O
O
O
O
O
O
O
I
I
I
O
I
I
O
O
I
O
I
I
O
I
I
I
I
I
I
O
I
I
O
I
I
I
I
I
I
I
I
I/O
Description PIN
No. Function Description

FR-155
17
LINE-2
ON
ON
OFF
DIGITAL
ON
ON
ON
ENERGY SAVE LED
60
26
34
42
35
3
RESET
AC POWER
RC POWER
SEL MAT
MDRESET
1sec. 60 sec.
5 sec.
1sec. 1sec.
60 sec.
Rec. Level
31
32 RECVOL1
RECVOL2
1
L
L
2
H
L
3
L
H
4
H
H41
46
44
CD MUT
TU MUT
REC MUT
MD
ON
ON
ON
CD
CONTROL
ON
OFF
FM/AM
ON
CONTROL
OFF
TAPE
ON
ON
OFF
CD R
ON
ON
OFF
LINE-1
ON
ON
OFF
3
5
6
9
10
11
12
13
14
15
18
19
20
21
22
23
24
25
26
30
~FLRESET
~SHUTDOWN
~RICKRACK
RCDATA
~SILK
~FACE
FLAT
~FLCLK
TAD
RED
~SACK
~CDCLK
CDDATA
~CDXLT
~CDRESET
CDPOWER
~OPEN
~CLOSE
ACPOWER
EQUALLED
CONTROL
H
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
L
L
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
H
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
L
L
L
L
L
L
L
L
H
H
H
CONTROL
CONTROL
H
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
L
L
L
L
L
L
L
L
H
H
H
CONTROL
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CONTROL
CONTROL
CONTROL
-
H
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
L
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
-
H
CONTROL
L
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
L
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
L
L
-
L
H
L
H
L
H
L
H
L
L
L
L
H
H
CONTROL
L
L
L
-
L
L
L
H
L
H
L
H
L
L
L
L
L
L
CONTROL
L
RECVOL1
RECVOL2
GOD
RCPOWER
~MDRESET
CDMUT
SELMUT
AILED
RECUT
FCE/VCE
TUMULT
CLACK
DATA
FRECKLE
PLACE
~VOLUP
~VOLDOWN
~SYSOUT
DOLT
31
32
33
34
35
41
42
43
44
45
46
47
48
49
53
56
57
59
62
After the " Energy save " is
scrolled. the light goes out.
OPERATION OFTHE MICROPROCESSOR
In the energy save mode (including the preparation period). only the STANDBY/ON button and the ENERGY SAVE button can be operated.
60 seconds after the energy save is operated. the microprocessor is turned to the energy save mode.
Even if theAC cord is removed. the energy save mode is stored. (the stored period is about 2 or 3 weeks that are the same as the stored
period of the preset values for the tuner.) When the initial values are set. the energy save mode is released.
(*1) : The back-up voltage for the microprocessor is supposed to be 0 volt after the initial values are set.
(*2) : The energy save mode is set when the power supply is on.
When the ENERGY SAVE button is pressed in the stand-by state. you can also enter the energy save mode.
SETTING
OPERATION
Connect the
AC cord.(*1) Press the
STANDBY/ON
button.
Q701 (Microprocessor)
Terminal
NO.
Function
Name
SET. STATE
FLTUBE
Press the
ENERGY SAVE
button.(*2)
Press the
STAND/BY
button.
Press the
ENERGY SAVE
button.
Disconnect
the AC cord.
Power
supply
is off. Stand-by
state Power supply is turned ON. Energy save
(under preparation) Energy save mode Stand-by Power
supply
is off.
Light goes out.
Light goes out.
Light comes on.
Light blinks. Light comes on. Light goes out.
Time is
indicated. Time is
indicated.
OPERATION of RECVOL1 and RECVOL 2
Analog switch (TC-4052) is controlled here. OPERATION of CDMUT. TUMUT and REC MUT
ON means that the mute function is always on and OFF means that the mute function is always off.
The mute functions shown by CONTROL become ON or OFF according to the set states.
H means the high level and L means the low level. The state shown by CONTROL varies with the set state.
OTHER OPERATIONS
Terminal
No. Terminal
No.
Function
Name Function
Name
Input Selector
Function
Name
Function
Name
Terminal
No. Terminal
No.
Input Selector Input Selector
In stand-by
state
In energy
save state
In stand-by
state
In energy
save state
OPERATION OF THE MICROPROCESSOR TERMINAL LINKED WITH THE ENERGY SAVE FUNCTION
CD CD
CD Except
FLRESET
CD Except

FR-155
18
34
35 35
35
14
16
17
15
19 20
21
23
24
18
7
31
6
4
5
26
27
33
13
13
11
11
10
9
2
21
8
3
SW1-SW4
32
30
MD MECHANISM EXPLODEDVIEW(1)
(KMK-260BCN)
Parts which have been described to the
NOTE column of the undermentioned
part list as NSP are not supplied.
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
Ref. No. Part No. Description
-
7685-790-09
-
-
2646-555-02
2646-554-11
X2646-249-1
2646-563-01
2646-556-01
-
2646-548-01
2647-337-01
-
2646-559-02
2646-561-01
Motor Plate ass'y
Screw(+PTT2.6 4 Type S)
L-SW pc board
Flexible flat cable(5 core)
Gear(Relay B)
Gear(Relay A)
Slot Frame ass'y
Spring(Slot arm), Tension coil
Slot Arm
Load Frame ass'y
Insulator
Screw, Step
Slide Frame
Head Arm,
Spring, SP Tension
NSP
NSP
NSP
NSP
NSP
NOTE
Ref. No. Part No. Description
NOTE
17
18
19
20
21
23
24
26
27
30
31
32
33
34
35
2646-562-01
2646-560-02
1669-181-11
2627-529-01
1500-518-11
-
7685-791-09
2646-545-01
-
X2626-328-1
7627-852-38
7685-780-09
-
-
7621-259-25
Spring
Gear
Head flexible pc board
Screw (+P1.7 2.5)
MD Over write head
MD mount
Screw (+PTT2.6 5 Type S)
Spring(Door arm), Tension coil
Case(Lower)
Loading motor ass'y
Special screw(+P1.7 1.8 Type 3)
Screw (+TT2 3 Type S)
Loading ass'y
Case(Upper)
Screw (+P2.6 4)
NSP
NSP
NSP
NSP

FR-155
19
51
52
53
54
55
56
57
58
61
62
63
64
65
66
67
68
69
70
71
72
74
2627-404-01
2646-453-01
1783-387-11
7627-850-79
1677-526-11
-
-
1669-180-11
2646-452-01
2627-529-01
2647-338-01
2646-567-01
2627-431-01
X2626-329-2
2646-571-11
7627-852-18
X2626-327-1
X2626-330-1
2646-574-03
2646-573-01
A4672-541-A
Screw (+P1.4 3.5 Type3)
Sub Guide
Flexible flat cable(7 core)
Special screw(+P1.4 1.8 Type 3)
D-SW pc board
Mechanical Chassis
Bracket, Spindle motor
Flexible pc board, Optical pick-up
Guide Shaft
Screw (+P1.7 2.5)
Rack Spring
Pre load Plate
Special screw(1.2 3.3)
Slid motor ass'y
Gear (MD)
Special screw(+P1.7 4 Type 3)
Spindle motor Ass'y
Lead screw Ass'y
Lead holder(A)
Lead holder(B)
KMS-260A/JIN
Ref. No. Part No. Description
NOTE
Ref. No. Part No. Description
NOTE
NSP
NSP
-
-
-
IC101
IC102
IC103
IC104
IC121
IC122
IC125
IC152
IC171
IC181
IC201
IC301
Q101,Q163
Q102
Q162
Q181
Q182
Q303
D101
D181,D183
X201
SW1~4
SW5
CN101
CN102
CN103
CN104
CN105
CN107
CN110
-
-
-
8752-080-95
1781-569-21
8729-903-10
8759-689-63
8752-404-64
8759-234-20
8759-498-44
8759-574-24
8759-640-39
8759-523-35
8759-919-21
8759-689-64
8729-028-91
8729-026-52
8729-101-07
8729-018-75
8729-017-65
8729-028-73
223233R1
8719-046-87
1767-179-31
1771-092-21
1771-327-11
1691-385-21
1774-794-11
1779-341-11
1778-283-11
1779-345-11
-
1779-353-21
L-SW PWB
D-SWPWB
MD PWB
CXA2523AR
90 MHz
FMW1-T-148
RH5RZ35CA-TI
CXD2662R
TC7S08F
MSM51V4400D-70TSK
BA5984FP-E2
BR24C02F-WE2
TC74ACT02FT(EL)
CXP740010-048R
AK4522VF-E2
DTA144EUA-T106
2SA1576A-T106-QR
2SB798-T1DK
2SJ278MY
2SK1764KY
DTA114EUA-T106
1SS355TE-17
F1J6, Diode
12 MHz, Crystal
Push switch(1key)
2pin push switch (2key)
FFC/FPC connector 21P
FFC/FPC connector 26P
FFC/FPC connector 23P
FFC/FPC connector 4P
FFC/FPC connector 7P
FFC/FPC connector 5P
FFC/FPC connector 5P
NSP
NSP
NSP
NSP
56
61 63
74
62
72
51
51
67
66
65
65 64
70
71
58
57
69
68
54
54
55
53
51 52
MD MECHANISM EXPLODED VIEW(2)
(KMK-260BCN)
Parts which have been described to the NOTE column
of the undermentioned part list as NSP are not supplied.

FR-155
20
1
2
3
4
5
6
8
7
Keep the MD mount(23) upright.
Pickup unit(74)
MD MECHANISM DISASSEMBLY
MD Mechanism KMK-260BCN
Remove the spring(Z3) from the door MD(Z3).
Spring(Z3)
Door MD(Z2)
Remove the spring(26) from the case (lower)(27).
Spring(26) Case (lower)(27)
Remove the case (upper)(34) by unscrewing the
five screws.
Screw
Screw Screw
Screw screw
Case (upper)(34)
Remove the case (lower)(27) by unscrewing the four
screws (step)(13).
Screw(step) Screw(step)
Screw(step)
Screw(step)
Remove the two special screws(31)used to
fix the loading motor.
Special Screw(31)
Remove the screw(24) used to fix the
MD mount(23)
MD mount(23)
Screw(24)