Jvc KD-SH77-R, KD-SH55-R Service Manual
KD-SH77R/KD-SH55R
SERVICE MANUAL
CD RECEIVER
KD-SH77R/KD-SH55R
ATT
ANGLE
CD
FM
AM
CH
AUX SEL
R D
VOLUME
KD-SH77R
EQ
KD-SH55R
E
EX
Area Suffix
Continental Europe
Central Europe
Difference
point
KD-SH77R
KD-SH55R
Contents
RM-RK100
DVD
control
O
X
LINE IN
O
X
SUBWOOFER
OUT
O
X
Safety precaution
Preventing static electricity
Disassembly method
Adjustment method
Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
EXT OUT
O
X
1-2
1-3
1-4
1-15
1-17
1-19
1-19
1-20~35
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
No.49634
Mar. 2001
KD-SH77R/KD-SH55R
Safety precaution
!
!
Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.
1-2
KD-SH77R/KD-SH55R
Preventing static electricity
1.Grounding to prevent damage by static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged,
can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
2.About the earth processing for the destruction prevention by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.
Be careful to use proper grounding in the area where repairs are being performed.
2-1 Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.
2-2 Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(caption)
Anti-static wrist strap
Conductive material
3. Handling the optical pickup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power
source can easily destroy the laser diode.
(conductive sheet) or iron plate
4.Handling the traverse unit (optical pickup)
1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific
details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse
unit. Be careful not to take too long a time when attaching it to the connector.
3. Handle the flexible cable carefully as it may break when subjected to strong force.
4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
CD mechanism ass’y
Damper bracket
Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to
detach the substrate.
1.Solder is put up before the card wire is removed from connector on
the CD substrate as shown in Figure.
(When the wire is removed without putting up solder, the CD pick-up
assembly might destroy.)
2.Please remove solder after connecting the card wire with
when you install picking up in the substrate.
Front bracket
Feed motor ass’y
FD screw
CD mechanism
control board
Soldering
FD gear
Pickup unit
1-3
KD-SH77R/KD-SH55R
Disassembly method
Removing the front panel assembly
(See Fig.1)
1.
Press the release button in the lower right part of the
front panel assembly to unlock.
2.
Remove the front panel assembly in the direction of
the arrow.
Removing the top chassis
(See Fig.2 to 6)
Turn on power.
1.
Press the eject button in the upper left part of the
front panel assembly to move the assembly as
shown in Fig.2 and turn off power.
Front panel assembly
Front panel assembly
Eject button
Release button
Fig.1
Top chassis
2.
Remove the two screws A on the upper side of the
body.
Top chassis
A
Front panel assembly
Fig.2
A
Fig.3
1-4
3.
Remove the three screws B on both sides of the
body.
4.
Remove the screw C and the three screws D on the
left side of the body.
5.
Remove the two screws E and the screw F on the
back of the body.
6.
Move the top chassis upward and remove it with the
CD mechanism assembly. The connector on the CD
mechanism assembly is disconnected from
connector CN601 on the main board.
KD-SH77R/KD-SH55R
Top chassis
BB
Fig.4
Top chassis
C
E
F
Heat sink
E
BD
Fig.5
F
Fig.6 (KD-SH55RE)Fig.6 (KD-SH77RE)
1-5
KD-SH77R/KD-SH55R
Removing the CD mechanism assembly
(See Fig.7)
Prior to performing the following procedure, remove
the top chassis.
1.
Remove the three screws G inside the top chassis
and remove the CD mechanisma ssembly.
Removing the motor assembly
(See Fig.8 to 10)
Prior to performing the following procedure, remove
the top chassis.
1.
Disconnect the wire from connector CN703 on the
main board.
2.
Remove the motor bracket and the spring attached
to the arm braket assembly (R).
Top chassis
G
Spring
G
G
CD mechanisma ssembly
Fig.7
Motor braket
3.
Remove the two screws H attaching the motor
bracket.
4.
Remove the washer attaching the clutch assembly
and pull out the clutch assembly from the shaft.
5.
Remove the two screws I and the motor assembly
from the motor bracket.
Motor braket
Clutch assembly
Motor assembly
Motor assembly
Arm braket assembly (R)
Fig.8
Main board
CN703
CN601
H
Motor braket
H
1-6
Washer
Fig.10
R
Fig.9
Removing the main board
(See Fig.11 to 15)
Prior to performing the following procedures, remove
the top chassis and the motor bracket.
1.
Disconnect the flexible wire from connector CN701
and CN702 on the main board respectively.
2.
Move the front bracket backward until it stops.
3.
Remove the four screws J attaching the arm
brackets (L) and (R). Move the right and arm lefter
brackets from the rod gear.
4.
Remove the rod gear.
5.
Remove the screw K attaching the rear panel to the
bottom cover on the back of the body.
J
Arm
brackets (L)
J
CN701
L
Main board
CN702
Fig.11
KD-SH77R/KD-SH55R
L
Arm
brackets (R)
J
Rod gear
Arm brackets (R)
Arm brackets (L)
Main board
Rod gear
Fig.12
Rear panel
K
Bottom cover
Rear panel
K
Bottom cover
Fig.13 (KD-SH55RE)Fig.13 (KD-SH77RE)
1-7
KD-SH77R/KD-SH55R
6.
Remove the two screws L and move the main board
backwards to release the two joints a. (The main
board will be removed with the rear panel and the
rear heat sink)
7.
Remove the screw M and N attaching the rear heat
sink.
8.
Remove the two screws O and the screw P
attaching the rear panel. Remove the mainboard
(KD-SH55RE).
9.
Remove the three screws O and the screw P
attaching the rear panel. Remove the main board
(KD-SH77RE).
Joint a
Joint a
Main board
Fig.14
O
Rear panel
P
N
Rear heat sink
M
Removing the lifter switch board
(See Fig.16)
Prior to performing the following procedures, remove
the top chassis, the motor bracket and the main
board.
O
Rear panel
Lifter switch board
P
M
N
Fig.15 (KD-SH55RE)Fig.15 (KD-SH77RE)
Rear heat sink
Bottom cover
1.
Remove the two screws Q attaching the lifter switch
board.
1-8
Q
Fig.16
KD-SH77R/KD-SH55R
Removing the lifter board
(See Fig.17 to 23)
Prior to performing the following procedure, remove
the top chassis assembly and thefront panel
assembly.
1.
Disconnect the flexible wire from connector CN702
on the main board.
2.
Remove the four screws R attaching the front
bracket on both sides of the body.
3.
Push the pin of the joint c on the front of the front
bracket to release the lock lever.
Main board
CN702
Front bracket
Fig.17
Front bracket
Joint c
Lock lever
Front bracket
R
Fig.18
Front bracket
R
Fig.19Fig.20
1-9
KD-SH77R/KD-SH55R
4.
Remove the screw S attaching the lifter board cover
in the rear of the front bracket.
5.
Release the two joints d while pushing the front side.
Move the lifter board cover inthe direction of the
arrow and release the eight joints e.
Joint d
Joints e
Lifter board cover
Joints e
Joint d
6.
Remove the two screws T attaching the lifter board
on the front of the body.
S
Joints e
Lifter board
Joint e
Front bracket
Fig.21
Lifter board cover
Fig.22
1-10
Fig.23
T
KD-SH77R/KD-SH55R
<Front panel assembly>
Prior to performing the following procedure, remove
the front panel assembly.
Removing the front board
(See Fig.24 and 25)
1.
Remove the four screws U attaching the rear panel
to the front panel assembly.
2.
Release the eleven joints f of the front panel and the
rear panel.
3.
Disconnect the wire from connector CN503 on the
front board.
4.
If necessary, unsolder connector CN502 on the front
board.
Removing the volume board
(See Fig.25 and 26)
Prior to performing the following procedure, remove
the rear panel.
U
Line in board
U
Joint f 11
Front board
V
Rear panel
Fig.24
Soldering
(CN502)
CN503
Fig.25
W
V
U
U
Soldering
Volume board
W
1.
Remove the two screws W attaching the volume
board.
2.
Disconnect the volume knob, ring lens and volume
ring from the volume board.
3.
If necessary, unsolder the volume board.
Removing the line in board
(See Fig.25 and 27)
Prior to performing the following procedure, remove
the rear panel.
1.
Disconnect the wire from connector CN503 on the
front board.
2.
Pull out the line in board from the front panel
assembly.
Volume board
Volume lens, Volume ring
Rng knob
Fig.26
Line in board
Fig.25
1-11
KD-SH77R/KD-SH55R
<CD mechanism section>
Removing the CD mechanism control
board (See Fig.1 and 2)
1.
Unsolder the part a and b on the CD mechanism
control board.
2.
Remove the stator fixing the CD mechanism control
board and the damper bracket (To remove the stator
smoothly, pick up the center part).
3.
Remove the screw A attaching the CD mechanism
control board.
4.
Remove the CD mechanism control board in the
direction of the arrow while releasing it from the two
damper bracket slots d and the front bracket slot e.
5.
Disconnect the flexible wire from connector on the
pickup unit.
ATTENTION:
Turn the FD gear in the direction of the
arrow to move the entire pickup unit to
the appropriate position where the
flexible wire of the CD mechanism unit
can be disconnected easily.
(Refer to Fig.2)
CD mechanism assembly
D
h
Front bracket
Pickup unit
Damper bracket
D
A
b
Fig.1
Flexible wire
a
CD mechanism
e
control board
h
c
D
d
Shift the lock
Removing the loading motor
(See Fig.3 to 5)
Prior to performing the following procedure, remove
the CD mechanism control board.
1.
Remove the two springs f attaching the CD
mechanism assembly and the front bracket.
2.
Remove the two screws B and the front bracket
while pulling the flame outward.
3.
Remove the belt and the screw C from the loading
motor.
Loading motor
C
FD gear
f
B
Loading motor
Pull outward
Fig.2
CD mechanism control board
f
B
Front bracket
Fig.3
Front bracket
Pull outward
1-12
Fig.5
Belt
Flame
Fig.4
KD-SH77R/KD-SH55R
Removing the CD mechanism assembly
(See Fig.1, 6 to 9)
Prior to performing the following procedure, remove
the CD mechanism control board and the front
bracket (loading motor).
1.
Remove the three screws D and the damper
bracket.
2.
Raise the both sides fix arms and move the fix plates
in the direction of the arrow to place the four shafts g
as shown in Fig.8 and 9.
3.
Remove the CD mechanism assembly and the two
springs h attaching the flame.
4.
Remove the two screws E and both sides rear
damper brackets from the dampers. Detach the CD
mechanism assembly from the left side to the right
side.
ATTENTION:
The CD mechanism assembly can be
removed if only the rear damper
bracket on the left side is removed.
CD mechanism
h
Front bracket
CD mechanism
D
Flame
assembly
D
assembly
h
D
Damper bracket
D
A
Fig.1
e
b
Damper bracket
D
Fig.6
a
h
c
D
d
CD mechanism
control board
h
Fix plate (L)
g
Fix arm (R)
D
Fig.7
Rear damper bracket
g
Fig.8
Rear damper bracket
E
Fix plate(R)
E
Fix arm (L)
Damper
Damper
g
g
Fig.9
1-13
KD-SH77R/KD-SH55R
Removing the feed motor assembly
(See Fig.10)
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor) and the CD mechanism assembly.
1.
Remove the two screws F and the feed motor
assembly.
Removing the pickup unit
(See Fig.10 and 11)
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor), the CD mechanism assembly and
the feed motor assembly.
1.
Detach the FD gear part of the pickup unit upward.
Then remove the pickup unit while pulling out the
part i of the FD screw.
Feed motor assembly
F
FD gear
Nut push spring plate
FD screw
Pickup unit
Fig.10
Part i
Part j
Pickup unit
G
Pickup mount nut
Pickup unit
ATTENTION:
2.
Remove the screw G attaching the nut push spring
plate and the pickup mount nut from the pickup unit.
Pull out the FD screw.
When reattaching the pickup unit,
reattach the part j of the pickup unit,
then the part i of the FD screw.
Removing the spindle motor
(See Fig.12 and 13)
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor), the CD mechanism assembly and
the feed motor assembly.
1.
Turn up the CD mechanism assembly and remove
the two springs k on both sides of the clamper arms.
Open the clamper arm upward.
2.
Turn the turn table, and remove the two screws H
and the spindle motor.
k
FD screw
Spindle motor
Fig.11
k
Fig.12
H
1-14
H
Fig.13
Adjustment method
KD-SH77R/KD-SH55R
Test instruments required for adjustment
1. Digital oscilloscope (100MHz)
2. AM Standard signal generator
3. FM Standard signal generator
4. Stereo modulator
5. Electric voltmeter
6. Digital tester
7. Tracking offset meter
8. Test Disc JVC :CTS-1000
9. Extension cable for check
EXTGS004-26P 1
Standard measuring conditions
Power supply voltage DC14.4V(10.5~16V)
Load impedance 20Kohm(2 Speakers connection)
Output Level KD-SH77R Line out 4.0V (Vol. MAX)
KD-SH55R Line out 2.0V (Vol. MAX)
How to connect the extension cable for adjusting
Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
BBE : OFF
Frequency Band
FM 87.5MHz ~ 108.0MHz
MW 522kHz ~ 1620 kHz
LW 144kHz ~ 279kHz
Dummy load
Exclusive dummy load should be used for AM,and FM. For
FM dummy load,there is a loss of 6dB between SSG output
and antenna input.The loss of 6dB need not be considered
since direct reading of figures are applied in this working
standard.
1-15
KD-SH77R/KD-SH55R
<ERROR CODE of Panel mechanism>
Memory to EEPROM of 6 digits, 1st and 2nd digit are indicate the operation mode when occur the error,
3rd to 6th digit are indicate details of error.
LCD indication time is use lower 2digits of details of error.
This series is indicate ERR XX (XX is error code).
<ex.> When details of error is 0A0001 , it is indicate ERR 01, details of error is 0E0031 , it is ERR 31.
Switch is from this side sequentially PSW1, PSW2,.....PSW6.
Details of error Error code
1. Error of door open (fault of PSW1)
(1) Time out by PSW1 not changed
(2) PSW1 change during waiting 300ms after open position detected
2. Error of door close (fault of PSW6)
(1) Time out by PSW6 not changed
(2) PSW6 change during waiting 300ms after close position detected
3. Error of shift to DETACH position (fault of PSW5)
(1) Time out by PSW5 not changed to open side
(2) Shift to open side, pass the DETACH position then detect ANGLE1
(3) Time out by PSW5 not changed to close side
(4) Shift to close side, pass the DETACH position then detect close position
4. Error of angle adjustment
4-1 Shift to ANGLE1 (fault of PSW4)
(1) Time out by PSW4 not changed to shift for open side
(2) Shift to open side, pass the ANGLE1 then detect ANGLE2
(3) Time out by PSW4 not changed to shift for close side
(4) Shift to close side, pass the ANGLE1 then detect DETACH position
4-2 Shift to ANGLE2 (fault PSW3)
(1) Time out by PSW3 not change to shift for open side
(2) Shift to open side, pass the ANGLE2 then detect ANGLE3
(3) Time out by PSW3 not changed to shift for close side
(4) Shift to close side, pass the ANGLE2 then detect ANGLE1
4-3 Shift to ANGLE3 (fault PSW2)
(1) Time out by PSW2 not changed to shift for open side
(2) Shift to open side, pass the ANGLE3 then detect OPEN position
(3) Time out by PSW2 not changed for shift for close side
(4) Shift to close side, pass the ANGLE3 then detect ANGLE2
5. PSW fault condition at initialize
When all PSW is checked immediately after RESET, and the state of SWITCH which
cannot be originally is detected, it is displayed as ERR 00.
0A0001
0A0002
0B0006
0B0007
0C0011
0C0012
0C0013
0C0014
0D0021
0D0022
0D0023
0D0024
0E0031
0E0032
0E0033
0E0034
0F0041
0F0042
0F0043
0F0044
000000
1-16
Flow of functional operation until TOC read
Power ON
• When the pickup correctly moves
to the inner area of the disc
Set Function to CD
KD-SH77R/KD-SH55R
• When the laser diode correctly
emits
Microprocessor
commands
FMO
TC9462 "53"
FEED MOTOR
+TERMINAL
TERMINAL
IC581 "5"
REST SW
• When correctly focused
Focus Servo Loop ON
Disc inserted
Pickup feed to the inner area
Laser emitted
Focus search
Disc rotates
RF signal eye-pattern
remains closed
Tracking loop closed
RF signal eye-pattern
opens
TOC readout
YES
YES
Microprocessor
commands
"No disc"
display
• When the disc correctly rotates
Microprocessor
commands
Spindle
motor (-)
IC581 "7"
AccelerationAcceleration
0.5 Sec
Rough
Servo
0.5 Sec
Servo CLV
Jump to the first track
Play
Tracking Servo Loop ON
• RF signal
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
CLV Servo Mode
(Lead-In Area;
Digital: 0)
1-17
KD-SH77R/KD-SH55R
Feed Section
Is the voltage output at
IC521 pin "53" 5V or 0V?
YES
Is 4V present at both
sides of the feed motor?
YES
NO
Is the wiring for IC521
(90) ~ (100) correct?
NO
Is 6V or 2V present at
IC581 "5" and "6"?
NO
YES
YES
Is 5V present at IC581
pin "11"?
YES
Check the vicinity of
IC521.
Check the feed motor
connection wiring.
NONO
Check CD 9V
and 5V.
Check the feed motor.
Focus Section
When the lens is
moving:
4V
Does the S-search
waveform appear at
IC581 pins "17" and "18"?
Spindle Section
Is the disk rotated?
YES
Does the RF signal
appear at TP1?
YES
Check IC581.
NO
YES
NO
NO
Check the circuits in
the vicinity of IC581
pins "15" ~ "18".
Check the pickup and
its connections.
Is 4V present at IC581
pins "7" and "8" ?
Check the spindle motor
and its wiring.
YES
YES
NO NO
Is 4V present at IC521
pin "55" ?
YES
Check the vicinity of
IC581.
Check IC501 and
IC521.
Is the RF waveform at TP1
distorted?
Proceed to the Tracking
section
Tracking Section
When the disc is rotated
Is the tracking error signal
output at IC501 "12"?
1-18
YES
at first:
Approx. 1.2 V
YES
Check IC521.
NO
Check the circuits in the
vicinity of IC501 "19" ~
"24" or the pickup
Check the circuit in the
vicinity of IC501 pins
"2" ~ "12".
YESYES
Check the pickup and
its connections.
Maintenance of laser pickup
(1) Cleaning the pick up lens
Before you replace the pick up, please try to
clean the lens with a alcohol soaked cotton
swab.
(2) Life of the laser diode
When the life of the laser diode has expired,
the following symptoms will appear.
(1) The level of RF output (EFM output:ampli
tude of eye pattern) will be low.
KD-SH77R/KD-SH55R
Is RF output
1.0 0.35Vp-p?
YES
O.K
(3) Semi-fixed resistor on the APC PC board
The semi-fixed resistor on the APC printed
circuit board which is attached to the pickup
is used to adjust the laser power.Since this
adjustment should be performed to match the
characteristics of the whole optical block,
do not touch the semi-fixed resistor.
If the laser power is lower than the specified
value,the laser diode is almost worn out, and
the laser pickup should be replaced.
If the semi-fixed resistor is adjusted while
the pickup is functioning normally,the laser
pickup may be damaged due to excessive current.
NO
Replace it.
Replacement of laser pickup
Turn off the power switch and,disconnect the
power cord from the ac outlet.
Replace the pickup with a normal one.(Refer
to "Pickup Removal" on the previous page)
Plug the power cord in,and turn the power on.
At this time,check that the laser emits for
about 3seconds and the objective lens moves
up and down.
Note: Do not observe the laser beam directly.
Play a disc.
Check the eye-pattern at TP1.
Finish.
1-19
KD-SH77R/KD-SH55R
Description of major ICs
TC9490FA (IC621) : DSP
1. Pin layout & Block diagram
DD3
XO
XV
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
SS3
XI
XV
TESIN
DD3VSS3
V
DMO
FMO
DD3
AV
SEL
TEBC
RFGC
REF
V
TRO
FOO
2. Pin function (1/2)
No. Symbol
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
BCK
LRCK
AOUT
DOUT
IPF
VDD3
VSS3
SBOK
CLCK
DATA
SFSY
SBSY
/HSO
/UHSO
PVDD3
PDO
TMAX
LPFN
LPFO
PVREF
VCOF
AVSS3
SLCO
RFI
AVSS3
49DV
SS3
RO
50
51
DV
DD3
DVR
DV
DD3
ZDET
V
SS5
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
/RST
V
DD5
LO
LPF
52
53
54
55
56
57
58
59
60
61
62
63
64
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
BCK
I/O
O
Bit clock output pin.32fs, 48fs, or 64fs selectable by command.
O
L/R channel clock output pin. "L" for L channel and "H" for R channel.
O
Audio data output pin. MSB-first or LSB-first selected by command.
O
Digital data output pin. Outputs up to double-speed playback.
O
Correction flog output pin.
-
Digital 3.3V power supply voltage pin.
-
Digital GND pin.
O
Subcode Q data CRCC result output pin. "H" level when result is OK.
I/O
Sub-code P-W data read clock I/O pin. I/O polarity selectable by command.
O
Sub-code P-W data output pin.
O
Playback frames sync signal output pin.
O
Sub-code block sync output pin.
O
Playback speed mode flag output pin.
O
Playback speed mode flag output pin.
-
PLL-only 3.3V power supply voltage pin.
O
EFM and PLCK phase difference signal output pin.
O
TMAX detection result output pin.
I
Inverted input pin for PLL RF amp.
O
Output pin for PLL LPF amp.
-
PLL-only VREF pin.
O
VCO filter pin.
-
Analog GND pin.
O
DAC output pin for data slice level generation.
I
RF signal input pin.
-
Analog 3.3V power supply voltage pin.
generator
Micro-
controller
interface
LRCK
Clock
AOUT
1-bit
DAC
circuit
Correction
Audio output
circuit
IPF
DOUT
Address
circuit
16 k
RAM
Digital output
SS3
DD3
V
V
PWM
SBOK
Servo control
ROM
RAM
CLV servo
Sync signal
protection
EFM
Sub code
decoder
DATA
CLCK
Function
Digital equalizer
automatic
adjustment circuit
SFSY
SBSY
/HSO
A/D
VCO
PLL
TMAX
D/A
Data
slicer
/UHSO
DD3
PDO
PV
32
TEZI
31
TEI
30
SBAD
29
FEI
28
RFRP
27
RFZI
26
RFCT
AV
25
DD3
24
RFI
23
SLCO
AV
22
SS3
21
VCOF
PV
20
REF
19
LPFO
18
LPFN
TMAX
17
1-20
2. Pin function (2/2)
No. Symbol
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
RFCT
RFZI
RFRP
FEI
SBADTEI
TEI
TEZI
FOO
TRO
VREF
RFGC
TEBC
SEL
AVDD3
FMO
DMO
VSS3
VDD3
TESIN
XVSS3
XI
XO
XVDD3
DVSS3
RO
DVDD3
DVR
LO
DVSS3
ZDET
VSS5
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
/RST
VDD5
I/O
I
RFRP signal center level input pin.
I
RFRP signal zero-cross input pin.
I
RF ripple signal input pin.
I
Focus error signal input pin.
I
Sub-beam adder signal input pin.
I
Tracking error input pin. Inputs when tracking servo is on.
I
Tracking error signal zero-cross input pin.
O
Focus equalizer output pin.
O
Tracking equalizer output pin.
-
Analog reference power supply voltage pin.
O
RF amplitude adjustment control signal output pin.
O
Tracking barance control signal output pin.
O
APC circuit ON/OFF signal output pin.
-
Analog 3.3V power supply voltage pin.
O
Feed equalizer output pin.
O
Disc equalizer output pin.
-
Digital GND pin.
-
Digital 3.3V power supply voltage pin.
I
Test input pin.
-
System clock oscillator GND pin.
I
System clock oscillator input pin.
O
System clock oscillator output pin.
-
System clock oscillator 3.3V power supply voltage pin.
-
DA converter GND pin.
O
R-channel data foward output pin.
-
DA converter 3.3V power supply pin.
-
Reference voltage pin.
O
L-channel data forward output pin.
-
DC converter GND pin.
O
1 bit DA converter zero data detection flag output pin.
-
Microcontroller interface GND pin.
I/O
Microcontroller interface data I/O pins.
I/O
Microcontroller interface data I/O pins.
I/O
Microcontroller interface data I/O pins.
I/O
Microcontroller interface data I/O pins.
I
Microcontroller interface clock input pin.
I
Microcontroller interface chip enable signal input pin.
I
Reset signal input pin.
-
Microcontroller interface 5V power supply pin.
Function
KD-SH77R/KD-SH55R
1-21
KD-SH77R/KD-SH55R
UPD784217AGC134 (IC701) : CPU
1. Pin layout
76 ~ 100
1 ~ 25
26 ~ 50
2. Pin function (1/2)
Pin No. FunctionSymbol I/O
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
SW2
SW3
SW4
REST-SW
LM0
LM1
NC
ANT REM
VDD
X2
X1
VSS
XT2
XT1
RESET
SW1
BUS-INT
PS2
NC
RDS-SCK
RDS_DA
REMOCON
AVDD
AVREF0
SD/ST
MRC DATA
KEY0
KEY1
TEMP
LEVEL
SQ
SM
AVSS
INLOCK
NC
AVREF
BUS-SI
BUS-SO
BUS-SCK
STAGE
LCD-DA
LCD-SCK
LCD-CE
51 ~ 75
CD mecha switch 2 detection signal input
I
CD mecha switch 3 detection signal input
I
CD mecha switch 4 detection signal input
I
Rest switch detection signal input
I
Loading side motor control signal output
O
Eject side motor control signal output
O
Non connect
O
Antenna remote output
O
5V connection
Connect to X'tal for main clock
Connect to X'tal for main clock
Connect to GND
Connect to X'tal for sub clock
Connect to X'tal for sub clock
Reset detection terminal
I
CD mecha switch 1 detection signal input
I
J-BUS signal interrupt input
I
Power save 2
I
Non connect
RDS clock signal input
I
RDS data input
I
Remocon signal input
I
5V connect
5V connect
Station detector, Stereo signal input
I
MRC data input
I
Key input 0
I
Key input 1
I
Temperature data input for contrast correction
I
Level meter input
I
S.Quality level input
I
S.meter level input
I
Connect to GND
Lock detection output
O
Non connect
5V connect
J-BUS data input
I
J-BUS data output
O
J-BUS clock input/output
I/O
H:SH77, L:SH55
I
Data output for LCD driver
O
Clock output for LCD driver
O
Chip enable output for LCD driver
O
1-22
2. Pin function (2/2)
Pin No. FunctionSymbol I/O
44
45
46
47
48
49
50
51
52
53
54
55
56~61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
BUZZER
I2C-DAI
I2C-DAO
I2C-CLK
BUS-I/O
PM0
PM1
DACML
DACMC
DACMD
DETACH
VCR CONT
PNL-SW1~6
AFCK
SEEK/STOP
S MUTE
FM/AM
PLL-CE
PLL-DO
PLL-CLK
PLL-DI
TEL-MUTE
AMP-KILL
VSS
DIM-IN
PS1
POWER
CD-ON
MUTE
W-LPF1
W-LPF2
W-MUTE
VDD
VOL-DA
VOL-CLK
CF SEL
PMKICK
EMPH
CS
VOL-1
VOL-2
NC
BUCK
CCE
LSIRST
TEST
BUS0
BUS1
BUS2
BUS3
DISCSEL
CD-RW
Buzzer output
O
I2C data input
I
I2C data output
O
I2C clock output
O
J-BUS I/O switching output
O
Panel close side motor control signal output
O
Panel open side motor control signal output
O
DAC mode control latch
O
DAC mode control clock
O
DAC mode control data
O
Detach signal input
I
VCR control signal output
O
Panel position detection switch 1 to 6 signal input
I
AF check output
O
Auto seek / Stop switching output
O
Soft mute output for CF switching noise
O
FM / AM select output
O
PLL IC control CE output
O
PLL IC control data output
O
PLL IC control clock output
O
PLL IC control data input
I
Telephone mute detection input
Power amp ON /OFF select output
O
Connect to GND
Dimmer detection input
I
Power save 1
I
Power ON / OFF select output
O
CD power supply control signal output
O
Mute output
O
Sub woofer cut off frequency control output 1
O
Sub woofer cut off frequency control output 2
O
Sub woofer mute output
O
5V connect
O
E. volume IC control data output
O
E. volume IC control clock data output
O
FM band area filter select signal output
O
Panel motor kick signal output
O
CD emphasis output
O
DAC chip select
O
Rotary volume pulse
I
Rotary volume pulse signal input
I
Non connect
Data communication clock output with CD LSI
O
Data communication CE output with CD LSI
O
CD LSI reset signal output
O
Connect to GND
Data communication input/output port 0 with CD LSI
I/O
Data communication input/output port 1 with CD LSI
I/O
Data communication input/output port 2 with CD LSI
I/O
Data communication input/output port 3 with CD LSI
I/O
H: 8 cm disc non correspondence L: 8 cm disc correspondence
I
CD-RW select signal output
O
KD-SH77R/KD-SH55R
1-23
KD-SH77R/KD-SH55R
+
+
-
-
+
+
-
-
-
+
+
BA3220FV-X (IC301,IC401) : Line out amp
1.Pin layout
LGND
13
8
OUTL OUTR RGND
14
3220
17
2.Block diagram
CL-
14
CR-
1112
10
9
CR+
8
REFL
1
2
Vcc
3
INL
4
NFLCL+
REFR
FILTER
56
FIL
NFR
7
INR
1-24
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