Panasonic CQ-JH8280KH Service Manual ▷ View online
8.1. Main Block
IC600 : C2BBGF000099
Pin
No.
Port
Description
I/O
(V)
1
BAT
Battery level detection
I
4.4
2
ACC
ACC level detection
I
4.4
3
CD-SO
CD serial data
I
2.4
4
CD-SI
CD serial datat
O
1.4
5
CD-CLK
Shift clock for CD data
O
4.8
6
CD-RESET
CD reset
O
4.8
7
CD-ON
CD controller enable
O
4.8
8
SW3
Disc-out switch
I
4.2
9
SW1
Disc-in switch
I
4.4
10
A.END
Tape end signal
I
2.1
11
BIT2
Tape mode switch
I
4.4
12
BIT3
Tape mode switch
I
0
13
B.END
Tape end signal
I
2.1
14
EQ
Metal/Normal switchl
I
0
15
BIT1
Tape mode switch
I
4.4
16
VOL CLK
Electronic volume clock
O
0
17
VOL DATA
Electronic volume data
O
0
18
LCD-ON
LCD illumi. on/off
O
4.7
19
LCD-DO
LCD data
O
0
20
LCD-CLK
Shift clock for LCD data
O
0
21
LCD-CE
LCD driver enable
O
0
22
LCD-DI
LCD data
I
5.0
23
REMOTE
Remote signal
O
5.0
24
ACCDET
(Connecting to ground)
-
0
25
BATDET
(Connecting to ground)
-
0
26
NC
No connection
-
0
27
AVDD
+5V power supply
-
5.0
28
RAD-VCONT
Phase diff. level detection
O
0.9
29-30 NC
No connection
-
0
32
AVSS
Ground
-
0
33
REGCPU
Coupling capacitor terminal
I
3.5
34
VDD
+5V poer supply
-
4.8
35
REGOSC
Coupling capacitor terminal
I
4.8
36
X2
Crystal oscillator terminal
-
2.3
37
X1
Crystal oscillator terminal
-
2.0
38
GND
Ground
-
0
39
SSC
Serch stop clear
O
0
40
GND
Ground
-
0
41
AM.IFC
AM IF counter
O
1.9
42
FM.IFC
FM IF counter
O
2.1
43
VDDPLL
PLL +5V power supply
-
5.0
44
FM.OSC
FM local OSC
I
2.4
45
AM.OSC
AM local OSC
I
1.4
46
PLL GND
Ground
-
0
47
ED01
PLL error
O
1.4
48
E02
No connection
-
-
49
IC(Vpp)
( Connecting to ground)
-
0
50
RESET
Reset input
I
4.0
51
VOLA
Rotary encoder data
I
4.8
52
VOLB
Rotary encoder data
I
4.8
53
RESNONI
Not used
-
-
54
ST IN
FM stereo detection
I
0.3
55
DX/LOC
DX/LOCAL selection
O
0
56
SD
B/S detection
I
0
57
POWER SW
Power switch
I
4.6
58
OPEN
Not used
-
-
59
BEEP
Beep output
O
0
60-62 NC
No connection
-
-
63
M2F
Main motor control
O
0.6
64
NC
No connection
-
-
66
F.COM
FM radio power on/off
O
7.9
67
R.COM
Radio power on/off
O
7.9
68
SYS ACC
System power on/off
O
0
69
NC
No connection
-
4.6
70
NC
No connection
-
0
71,
72
NC
No connection
-
-
73
IE-BUS+
LAN data
O
0
74
IE-BUS-
LAN data
I
0
75
T.IN
Tape-in detection
I
0
76
MSM
MS gain contrl
O
4.7
77
A/B
Tape side detection
I
4.5
78
TAPE EJ
Tape eject
I
4.5
79
CD.EJ
CD eject
I
4.5
80
NC
No connection
-
-
81
GA-INPUT
(+5V pull-up)
-
4.8
82
GND1
Ground
-
0
83
EQ(MTL)
Metal tape mode selection
O
4.8
84
F/R
Tape head change
O
4.8
85
DOLBY
Dolby NR on/off
O
0
86
T.LOAD
Tape loading detection
I
0
87
MS(PL/FF)
MS mode selection
O
0
88
MS
MS detection
I
0
89
CAP.ON
Tape power control
O
4.7
90
CMP.ON
Tape power control
O
4.7
91
M2
Main motor control
O
4.7
92
M1B ON
Loading motor control
O
0
93
M1A ON
Loading motor control
O
0
94
CDP.ON
CD power control
O
4.8
95
TUNER+B
Not used
-
0
96
P.CONT1
COM8V power switch
O
4.7
97
MUTE
Mute output
O
0
98
STBY
Power amp. Stand-by
O
4.8
99
VDD
+5V power supply
-
4.8
100
GND
Ground
-
0
Note :
Voltage measuerments are with respect to ground, with a
voltmeter (Internal resistance : 10M ohms.)
voltmeter (Internal resistance : 10M ohms.)
8.2. Display Block
IC901 : C0HBA0000016
Pin
No.
Port
Description
I/O
(V)
1
P1
Disc LED on/off
O
0
2-4
P2-4
Not used
-
-
5-28 S5-28
LCD segment data
O
2.5
29-40 S29-40
Not used
-
-
41-43 COM1-3
LCD common
O
2.5
44-48 KS1-5
Key strobe
O
0.9
49
KS6
Not used
-
-
50-53 KI1-4
Key data
I
0
54
KI5
Not used
-
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.1
57
VDD1
LCD angle
-
3.3
58
VDD2
LCD angle
-
1.7
59
VSS
Ground
-
0
60
OSC
Oscillator terminal
-
3.9
61
DO
Key data output
O
4.1
62
CE
LCD driver chip enable
I
0
63
CL
Shift clock for LCD data
I
0
64
DI
LCD data input
I
0
8 TERMINALS DESCRIPTION
9
HONDA / CQ-JH8280KH
8.3. CD Servo Block
IC201 : MNG748RPMFA
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
1
BCLK
Not used
-
-
2
LRCK
Not used
-
-
3
SRDATA
Not used
-
-
4
DVDD
+5V digital power supply
-
5.0
5
DVSS1
Digital ground
-
0
6
TX
Not used
-
-
7
MCLK
MPU command clock
I
0
8
MDATA
MPU command data
I
0
9
MLD
MPU command load
I
0
10
SENSE
Sense signal
O
0
11
/FLOCK
Focus servo lock
O
0
12
/TLOCK
Tracking servo lock
O
4.9
13
BLKCK
Not used
-
-
14
SQCK
Q code external clock
I
4.9
15
SUBQ
Q code output
O
2.5
16
DMUTE
DSP mute
I
0
17
STAT
DSP Status output
O
3.1
18
/RST
Reset input
I
4.9
19,20
Not used
-
-
21
TRV
Forced traverse output
O
2.5
22
TVD
Traverse drive output
O
2.5
23
PC
Spindle motor control
O
0
24
ECM
Spindle motor drive
O
2.5
25
ECS
Spindle motor drive
O
2.5
26
KICK
Kick pulse output
O
2.5
27
TRD
Tracking motor drive
O
2.5
28
FOD
Focus motor drive
O
2.5
29
VREF
D/A reference voltage
I
2.5
30
FBAL
Focus balance adjust
O
2.5
31
TBAL
Tracking balance adjust
O
2.5
32
FE
Focus error signal
I
2.5
33
TE
Tracking error signal
I
2.5
34
RFENV
RF envelope signal
I
2.5
35
VDET
Vibration detection
I
0
36
OFTR
Off track signal
I
0
37
TRCRS
Track closs signal
I
2.1
38
/RFDET
RF detection signal
I
0
39
BDO
Drop out signal
I
0
40
LDON
Laser on/off control
O
4.5
41
PLLF2
Not used
-
-
42
TOFS
TE offset
O
2.5
43
WVEL
Not used
-
-
44
ARE
RF signal
I
1.7
45
IREF
Reference current input
I
1.6
46
DRF
DSL bias
I
0
47
DSLF
DSL loop filter
I/O
2.4
48
PLLF
PLL loop filter
I/O
1.8
49
VCOF
Not used
-
-
50
AVDD2
+5V analog power supply
-
5.0
51
AFSS2
Analog ground
-
0
52
EFM
Not used
-
-
53
PCK/DSLB
DSL bias
I
2.4
54
VCOF2
Tracking offset
O
2.5
55
SUBC
Not used
-
-
56
SBCK
(Connecting to ground)
-
-
57
VSS
Ground
-
0
58
X1
Crystal oscillator
I
1.7
59
X2
Crystal oscillator
O
2.3
60
VDD
+5V power supply
-
5.0
61,62
-
Not used
-
-
63
FCLK
Not used
-
-
64
IPFLAG
Not used
-
-
65
FLAG
Not used
-
-
66-69
-
Not used
-
-
70
IOSEL
(Connecting to ground)
I
0
71
/TEST
(Connecting to ground)
I
0
72
AVDD1
+5V analog power supply
-
4.9
73
OUTL
Audio Lch output
O
4.9
74
AVSS1
Analog ground
-
0
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
75
OUTR
Audio Rch output
O
4.9
76
RSEL
(Connecting to ground)
-
0
77
CSEL
(Connecting to ground)
-
0
78
PSEL
(Connecting to ground)
-
0
79
MSEL
(Connecting to ground)
-
0
80
SSEL
mode select
I
5.0
IC401 : MN101C117AG
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
1
MASHON
Servo IC OSC control
O
5.0
2
P82(NC)
-
-
-
3
P81(NC)
-
-
-
4
P5CNT
Photo sensor LED on/off
O
0
5
Q1
Photo sensor signal (DISC IN)
I
4.5
6
Q3
Photo sensor signal (DISC OUT)
I
4.2
7
Q6
Photo sensor signal (Option)
I
5.0
8
SW4
Clamp SW signal
I
0
9
SW5
Inner SW signal
I
5.0
10
SW2
Feeder arm SW
I
5.0
11
PA6
(Connection to ground)
-
0
12
PA7/IFR
(Connecting to ground)
I
0
13
VDD
+5V power supply
-
5.0
14
OSC2
Crystal oscillator
-
5.0
15
OSC1
Crystal oscillator
-
3.3
16
VSS
Ground
-
0
17
NC
-
-
-
18
SOMI
CD control data
O
3.2
19
SIMO
CD control data
I
3.8
20
SCLM
Data shift clock
I
5.0
21
P06(NC)
-
-
-
22
BD0
Drop out signal
I
0
23
PC1
Loading motor driver control
O
5.0
24
PS2
Focus/Tracking driver control
O
0
25
VDET
Vibration detecting signal
I
0
26
P14(NC)
-
-
-
27
CDON
CD on signal
I
5.0
28
IRQ1.SENSE
(Connecting to groung)
-
0
29
IRQ2
(Connecting to ground)
-
0
30
LOD
Loading motor control
-
2.6
31
TRV
Traverse motor control
-
2.5
32
/PRST
Servo IC reset
O
5.0
33
STAT
Status signal
I
4.0
34
DMUTE
DSP mute
O
0
35
SUBQ
Sub code Q data
I
2.6
36
SQCK
Sub code Q clock
O
5.0
37
/TLOCK
Tracking servo lock
I
0
38
/FLOCK
Focus servo lock
I
0
39
NRST
reset input
I
5.0
40
MMOD
(Connecting to ground)
-
0
41
SENSE
Sense signal
I
0
42
MLD
Command load
O
5.0
43
MDATA
Command data
O
0.9
44
MCLK
Command clock
O
4.6
10
HONDA / CQ-JH8280KH
•
•
•
•
Power Supply Voltage : DC13.2V
•
•
•
•
Output Impedance : 4
Ω
•
•
•
•
Output Power : 0.5W
•
•
•
•
Balance, Fader Control : center
•
•
•
•
Bass, Treble Control : Center
9 ALIGNMENT INSTRUCTIONS
9.1. Alignment Conditions
Notes:
Do not align the FM/AM package blocks. When the package block is necessary, it will be supplied already aligned at
the factory.
the factory.
9.2. Dolby NR Alignment
Step
Alignment Item
Test Tape
VTVM Connection
Adjust
Remarks
(1)
DOLBY NR Rch
RFKZ0038
TP201
VR201
Adjust for 388mV ±1.0dB
(2)
DOLBY NR Lch
RFKZ0038
TP301
VR301
Adjust for 388mV ±1.0dB
10 ALIGNMENT POINTS
11
HONDA / CQ-JH8280KH
11.1. Main Block
IC200 : C1BB00000284
IC300 : C1BA00000115
11 PACKAGE AND IC BLOCK DIAGRAM
PK50 : YEP0PTA513B0
12
HONDA / CQ-JH8280KH
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