Panasonic CQ-C1505N Service Manual ▷ View online
5
4 Technical Descriptions
4.1.
Terminals Description
4.1.1.
Main Block
IC601 : YESAM387
Pin
No
Port
Description
I/O
Vol. (V)
FM
AM
CD
1
XIN
Crystal ocillator (4.5MHz)
I
2.5
2.5
2.5
2
TEST2
GND
-
0
0
0
3
VREG
Connected with capacitor
-
3
3
3
4
VSSCPU
GND
-
0
0
0
5
LCD DO
Serial data from LCD
I
5
5
5
6
LCD DI
Serial data to LCD
O
5
5
5
7
LCD SCK
Serial data to LCD
O
5.1
5.1
5.1
8
LCD CE
Chip enable for LCD CPU
O
0
0
0.3
9
PANEL
Front panel detection
I
5
5
5
10 POWER LED Power LED drive
O
0
0
0
11 MODE B
Rotary encoder detection
for volume
for volume
I
5
5
5
12 MODE A
Rotary encoder detection
for volume
for volume
I
5
5
5
13 CD DO
Serial data from CD
I
5.1
5.1
4.8
14 CD DI
Serial data to CD
O
0
0
5
15 CD CLK
Serial clock for CD
O
5
5
5
16 CD CE
CD chip enable
O
0
0
1.3
17 CD EM
Ejecting mode for Sled
motor
motor
O
0
0
0
18 CD LM
Loading mode for Sled
motor
motor
O
0
0
0
19 CD S/L
Sleding/Loading mode
switch
switch
O
5.1
5.1
5.1
20 SUB READY Sub ready from CD servo
I
5.1
5.1
5
21 CD IN SW1
CD detection switch 1
I
0
0
0
22 CD SW2
CD detection switch 2
I
0
0
0
23 CD LIMIT
SW
CD limit detection switch
I
5.1
5.1
5.1
24 CD MUTE
CD mute
I
0.2
0.2
5.1
25 CD RST
CD reset
O
5
5
5
26 CD DMUTE
Mute for Pick-up driver
O
0
0
5.1
27 CD ERROR CD error status
I
0
0
0
28 REG READY
(NEW)
Reg. ready from CD servo
I
5.1
5.1
0
29 NC
GND
-
0
0
0
30 NC
GND
-
0
0
0
31 NC
GND
-
0
0
0
32 NC
GND
-
0
0
0
33 NC
Not connected
-
-
-
-
34 NC
Not connected
-
-
-
-
35 TBASS
Not connected
-
-
-
-
36 NC
Not connected
-
-
-
-
37 NC
Not connected
-
-
-
-
38 NC
Not connected
-
-
-
-
39 VDDPORT
+5V power supply
I
5.1
5.1
5.1
40 VSSPORT
GND
-
0
0
0
41 NC
Not connected
-
-
-
-
42 NC
Not connected
-
-
-
-
43 NC
Not connected
-
-
-
-
44 NC
Not connected
-
-
-
-
45 NC
Not connected
-
-
-
-
46 NC
Not connected
-
-
-
-
47 NC
Not connected
-
-
-
-
48 NC
Not connected
-
-
-
-
49 PWR CNT
System power supply
control
control
O
5
5
5
50 AMP CNT
Power supply control for
External amplifier
External amplifier
O
5.1
5.1
5.1
51 ANT CNT
Not connected
-
5.1
5.1
5.1
52 TEL MUTE
Telephone mute
I
5.1
5.1
5.1
53 BATT
Battery level detection
I
5.1
5.1
5.1
54 NC
Not connected
-
-
-
-
55 AMP MUTE
Mute for Power amplifier
O
5.1
5.1
5.1
56 STBY
Standby mode for Power
amplifier
amplifier
O
5.1
5.1
5.1
57 NC
Not connected
-
-
-
-
58 AF MUTE
Audio signal mute
O
5.1
5.1
5.1
59 I2C DATA
Serial data for Electronic
Volume
Volume
O
5.1
5.1
5.1
60 I2C CLK
Serial clock for Electronic
Volume
Volume
O
5.1
5.1
5.1
61 NC
Not connected
-
-
-
-
62 NC
Not connected
-
-
-
-
63 NC
Not connected
-
-
-
-
64 NC
Not connected
-
-
-
-
65 NC
Not connected
-
-
-
-
66 NC
Not connected
-
-
-
-
67 SSC
SD sensitivity control
O
0
0
5.1
68 NC
Not connected
-
-
-
-
69 RDS CLK
RDS (Radio Data Sys-
tem) clock
tem) clock
I
2.5
2.5
2.5
70 REM IN
Remote control data
I
5
5
5
71 NC
Not connected
-
-
-
-
72 NC
Not connected
-
-
-
-
73 NC
Not connected
-
-
-
-
74 MONO
Monaural mode
O
0
0
0
75 AM MODE
Power supply control for
AM mode
AM mode
O
8.3
0
8.3
76 FM MODE
Power supply control for
FM mode
FM mode
O
0
8.3
0
77 NC
GND
-
0
0
0
78 INIT C
GND
-
0
0
0
79 INIT B
GND
-
0
0
0
80 INIT A
GND
I
0
0
0
81 VSSADC
GND
-
0
0
0
82 RDS DATA
RDS (Radio Data Sys-
tem) data
tem) data
I
2.9
0
2.9
83 ST
FM stereo indication
I
5.1
5.1
0.3
84 SD FM/AM
Signal level of FM/AM
I
0
0
0
85 NC
GND
-
0
0
0
86 RESET
Pulled-up
I
5
5
5
87 ACC ACC
level
detection
I
5.3
5.3
5.3
88 NC
GND
-
0
0
0
89 NC
GND
-
0
0
0
90 FM/AM IFC
FM/AM center frequency
input
input
I
1.5
1.5
1.5
91 NC
GND
-
0
0
0
92 SUBPD
Not connected
-
0.4
0.4
0.4
93 VDDPLL
+5V power supply
I
5.1
5.1
5.1
94 NC
GND
-
0
0
0
95 OSC FM/AM FM/AM local oscillation
frequency
I
1.4
1.4
1.4
96 VSSPLL
GND
-
0
0
0
97 NC
Not connected
-
-
-
-
98 EO1
FM/AM phase detection
error output
error output
O
2.3
2.2
2.2
99 TEST1
GND
-
0
0
0
100 XOUT
Crystal oscillator
(4.5MHz)
(4.5MHz)
O
2.6
2.6
2.6
Pin
No
Port
Description
I/O
Vol. (V)
FM
AM
CD
6
4.1.2.
Display Block
IC901 : C0HBA0000195
Pin No.
Port
Description
I/O
(V)
1
GREEN
LED control (Green)
O
0
2
RED
LED control (Red)
O
4.9
3, 4
(NC)
-
-
-
5 - 37
SEG33 -1
LCD segment data
O
2.5
38, 39
(NC)
-
-
-
40 - 43 COM4 -1
LCD common
O
2.5
44
(NC)
-
-
-
45 - 49 KS2-6
Key scan
O
5
50 - 54 Kl1-5
Key data
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5
57
VDD1
VDD1 filter terminal
-
3.3
58
VDD2
VDD2 filter terminal
-
1.7
59
VSS
Ground
-
0
60
OSC
Oscillator terminal
-
3.8
61
DO
Key data output
O
5
62
CE
LCD driver chip enable
I
0.3
63
CLK
LCD clock
I
5.1
64
DI
LCD data
I
4.9
7
4.2.
IC Block Diagram
4.2.1.
Main Block
IC201 : YESAM385
IC271 : C1EA00000041
IC751 : YESAM349
IC501 : YESAM283
IC802 : YESAM352
4.2.2.
Display Block
IC902 : YESAM264
8
5 Block Diagram
5.1.
Main / Display Block
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
F-
F+
F+
T-
T+
T+
SL-
SL+
SL+
SP-
SP+
SP+
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SLED
MOTOR DRIVE
SPINDLE
MOTOR DRIVE
VA
VA
VCC
CN801
5
7
VB
VB
FE
FE
13
14
VE
VE
LPD
LPD
LD
19
18
LD
CD CE
CD MUTE
CD RST
CD RST
CH L
CH R
CH R
CD DO
CD DI
CD DI
CD CL
SUB READY
+
D/A
CONV
I/F
OSC
XL801
SERVO
CTL
EFM
DEMOD
RF
EQ
EQ
RF AMP, CD DSP, CD SERVO
IC801
COIL / MOTOR DRIVE
IC802
FOCUS
ERROR
ERROR
LD
DRIVE
TRACKING
ERROR
3.3V
9
8
8
11
10
10
5
4
4
7
6
6
18
1
14
16
23
MUTE
CD MUTE
SPDO
SLDO
TOD
REG IN
CD LM, CD SL
FDO
75
78
78
50
47
47
43
44
46
45
46
45
49
24 25
22
73
72
23
Q871
FOCUS COIL-
FOCUS COIL+
FOCUS COIL+
TRACKING COIL-
TRACKING COIL+
TRACKING COIL+
SLED MOTOR-
SLED MOTOR+
SLED MOTOR+
SPINDLE MOTOR-
SPINDLE MOTOR+
SPINDLE MOTOR+
SW1
SW2
CD LIMIT SW
SW2
CD LIMIT SW
T
o
CD INTERF
A
CE BLOCK
19
26
27
24
CONTROL
24
REG
CD8V
CD3.3V
IC501
Q066
Q066
RDS D
A
T
A
RDS CLOCK
FM DET OUT
RDS
DECODE
IC601
CPU
98
60
59
58
55
52
56
50
53
87
49
Q052
Q055
RF AGC
IFC
AM
MODE
ST
SD
MONO
FM IN
RF AGC
Lch Out
Rch Out
AM IN
AF MUTE
STBY
ACC
AMP CNT
BATT
TEL_MUTE
5
3
3
12
15
13
14
12
21
20
5
IC201
AUDIO SELECT / TONE CONTROL
3
7
6
11
10
16
Rch
Lch
RADIO
RADIO L
RADIO R
CD.L
CD.R
AUX.L
AUX.R
17
21
22
20
23
9
6
14
25
13
2
12
1
11
14
15
22
4
20
6
9
7
7
21
23
23
17
19
19
AMP MUTE
Q362
STBY
TEL_MUTE
AMP MUTE
AF MUTE
BATT
FM
RF AMP
MODE
SW
AM
RF AMP
PA051 FM/AM TUNER PACK
AT051
ANT
AM ANT
FM ANT
MODE
SW
LPF
Q401
TUNER8V
PRE
OUT
OUT
BASS
MIDDLE
TREBLE
AMP CNT
I2C BUS LOGIC
SW
+8V
REG
BATT DET.
TUNER +8
Q770,D770
VDD5V
VDD5V
ACC
SCL
SD
A
BATT
Q701, Q702
D702
D702
AUDIO9V
R.Lch
R.Rch
CQ-C1505N MAIN / DISPLAY BLOCK
CN601
LCD DO
XL601
100
1
LCD CE
LCD CLK
LCD DI
RM DATA
PANEL
ILL9V
MODE A
MODE B
MODE B
POWER LED
RL
RL
FL
IC271
POWER AMP
POWER AMP
CN701
FL(+)
FL(-)
FL(-)
FR(+)
FR(-)
FR(-)
RL(+)
RL(-)
RL(-)
RR(+)
RR(-)
RR(-)
FR
RR
RL
FL
FR
RR
RR
RL
RR
VDD5V
ILL9V
7227-02-11
Q704,752
AUDIO9V
SW
BATT
BATT
PWR
CNT
ACC
CTRL
AMP
CNT
OUT
CNT
OUT
VCC
ACC
11
2
AMP
CNT
IN
CNT
IN
7
COMP
AMP CNT
6
SW5V
5
VDD5V
4
ILM
AUDIO 9V
14
10
8
3
ACC
5V
SW5V
VDD5V
ILL9V
AUDIO9V
CD 8V
12
CD8V
IC751
POWER SUPPLY
FM MODE
E01
SW
Q265
Q365
Q365
AUDIO9V
FM
ST/MONO
FM
DET OUT
Q262
CN250
Q261
MUTE
MUTE
MUTE
MUTE
Q361
MUTE
CONTROL
Q660,661
BATT
MONO
FADER
MONO
FADER
MONO
FADER
MONO
FADER
LED
DRIVE
LED
DRIVE
AUX
IN
LD901
7227-05-12
LCD DRIVE
KI1-5
KS2-6
SEG1-33
COM1-4
61
62
63
64
DO
CE
CLK
DI
IC901
SW902-917
IC902
REMOCON
RECEIVER
SW901
KEY MATRIX
CN901
SW
Q901
CN902
AUX L,R
D901,D938
RED, GREEN
Q930
Q950
D921-936
D941-956
RED
GREEN
AUX L, R
Q054
PWR CNT
Q851
INPUT GAIN
V
OLUME
MUTE
INPUT SELECT
OR
PASS
TONE
PASS
TONE
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