Panasonic CQ-JS6930A1S Service Manual ▷ View online
6.2. CD Changer Deck Block
7
CQ-JS6930A1S
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Power Supply Voltage : DC13.2V
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Output Impedance : 4
Ω
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Output Power : 0.5W
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Balance, Fader Control : center
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Bass, Treble Control : Center
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Dolby NR: OFF
7 ALIGNMENT INSTRUCTIONS
7.1. Alignment Conditions
Note :
Do not align the FM/AM package block. When the package block is necessary, it will be supplied already aligned at the
factory.
factory.
7.2. 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
8 ALIGNMENT POINTS
8
CQ-JS6930A1S
9 CD DISC CENTERING ALIGNMENT
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This adjustment is for assuring that compact discs will be placed in the center of the turntable.
<Adjustment Condition / Jig>
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Power Supply Voltage : 13.2V
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Test Disc : TCD-792A
<Adjustment Procedures>
1. Attach the adjusting screw to the upper chassis (See Figure 1.).
2. Insert the test CD (TCD-792A) into the disc No.1 position and play it.
3. After checking whether the disc is centered on the turntable, turn the adjusting screw unit it is in the center.
<Check Items>
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Check that the disc is correctly centered.
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Check that the disc is securely clamped.
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Check that no abnormal noise is produced when clamping the disc.
[Directions of Turning the Adjusting Screw]
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CD stops before its proper position : Turn the screw counterclockwise.
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CD overruns : Turn the screw clockwise.
4. After the adjustment, lock the screw.
9
CQ-JS6930A1S
10.1. Main Block
IC601 C2BBGF000068
Pin
No.
Port
Description
I/O
VOL(V)
FM
AM
CD Tape
1
LED CE
LCD Chip enable
I
0
0
0
0
2
LCD DO
LCD Data
I
4.7
4.7
4.6
4.6
3
NC
-
-
-
-
-
-
4
GND
Ground
-
0
0
0
0
5
F CONT2
F1/F2 mode change
O
0
0
0
0
6
F CONT1
O
0
0
0
0
7
VDD
+5V Power supply
-
4.8
4.8
4.8
4.8
8
BLINK
Disc Indicator light
control H: Light L:Out
the light
control H: Light L:Out
the light
O
0
0
0
0
9
BRIGHTN
ESS
ESS
Disc Indicator
depreciaion H:
Normal L: One stage
depreciation
depreciaion H:
Normal L: One stage
depreciation
O
0
0
0
0
10 NC
-
-
-
-
-
-
11 CD-ON
ID-CH MASH Power
control H: MASH ON
L:MASH OFF
control H: MASH ON
L:MASH OFF
O
0
0
0
0
12 NC
-
-
-
-
-
-
13 M1-B
M1-A M1-B L L
Brake L H Loading H
L Eject H H Brake
Brake L H Loading H
L Eject H H Brake
O
0
0
0
0
14 M1-A
O
0
0
0
0
15 NC
-
-
-
-
-
-
16 CD SOM
CD serial data input
I
4.6
4.6
4.3
4.6
17 CD SIM
CD serial data output
O
0
0
0
0
18 CD SCKM CD serial clock input
O
4.8
4.8
4.8
4.8
19 CD
RESET
L: CD CPU reset
O
4.8
4.8
4.8
4.8
20 START/ST
OP
CD communication
control H: Data
effective L: F Data
ineffective
control H: Data
effective L: F Data
ineffective
O
4.8
4.8
4.8
4.8
21 STBY
H: LA5625 Active L:
LA5625 Non active
LA5625 Non active
O
4.8
4.8
4.8
4.8
22 A/B
H: B side L: A side
O
0
0
0
4.8
23 MTL
H: Metal tape L:
Normal tape
Normal tape
O
0
0
0
4.8
24 P.CLK
LA5625 serial clock
output
output
O
0
0
0
0
25 P.DATA
LA5626 serial data
output
output
O
0
0
0
0
26 P.LATCH
LA5627 latch signal
output
output
O
4.8
4.8
4.8
4.8
27 MS
H: Silence L: Tone
I
1.2
1.2
1.2
0
28 MS PL/FF H: PLAY L: FF/REW
O
0
0
0
0
29 T.LOAD
H: EJECT finish L:
Loading start
Loading start
I
4.9
4.7
4.7
0
30 DOLBY
H: Dolby B C ON L:
Dolby B C OFF
Dolby B C OFF
O
0
0
0
4.8
31 CAM A/B
H: A side L: B side
I
0
0
0
4.8
32 T.IN
H: Tape out L: Tape
in
in
I
4.9
4.7
4.7
0
33 GND
Ground
-
0
0
0
0
34 ENDB
Tape end detection
I
0
0
0
0
35 ENDA
Tape end detection
I
0
0
0
0
36 CONT1
DIV1 DIV2 L H MAIN
or FMH L Except
or FMH L Except
O
0
0
0
0
37 CONT2
O
7.9
0
0
0
38 M2F
H: First L: Third
O
0
0
0
0.6
39 MSM
H: First L: Third
O
0
0
0
0
40 EQ
H: Metal tape L:
Normal tape
Normal tape
I
4.8
4.8
4.8
0
41 BIT3
Rotary Switch 3
I
4.8
4.8
4.8
0
42 BIT2
Rotary Switch 2
I
4.8
4.8
4.8
4.8
43 BIT1
Rotary Switch 1
I
0
0
0
4.8
Pin
No.
Port
Description
I/O
VOL(V)
FM
AM
CD Tape
44 PWM (NC)
-
-
-
-
-
-
45 MUTE
H: Mute ON L: Mute
OFF
OFF
O
0
0
0
0
46 BEEP
Beep output
O
0
0
0
0
47 VOL DAT
Volume data output
O
0
0
0
0
48 VOLCLK
Volume clock output
O
0
0
0
0
49 VOL CE
Volume chip enable
O
0
0
0
0
50 TEST
Automatic test
command
command
I
4.8
4.8
4.7
4.7
51 JPN/TAI
H: Taiwan L: Japan
I
0
0
0
0
52 PLL DO
PLL data input
I
4.8
4.8
4.8
4.8
53 PLL CLK
PLL clock output
O
0
0
0
0
54 PLL DI
PLL data output
OUT1(DX/LOC)
H:LOC L:DX
OUT1(DX/LOC) H:
1F START L:STOP
OUT1(DX/LOC)
H:LOC L:DX
OUT1(DX/LOC) H:
1F START L:STOP
O
0
0
0
0
55 PLL CE
PLL chip enable
output
output
O
0
0
0
0
56 LAN-OUT
AVC-LAN data
output
output
I
0
0
0
0
57 LAN-IN
AVC-LAN data input
I
0
0
0
0
58 ST
H: Stereo input ON
L: Stereo input OFF
L: Stereo input OFF
I
0
1.7
0
0
59 SD
H: Electric field ON
L: Electric field OFF
L: Electric field OFF
I
0
0
0
0
60 RESET
L: Reset
I
4.9
4.9
4.7
4.5
61 ILL-DET
H: Illumi. OFF L:
Illumi. ON
Illumi. ON
I
0
0
0
0
62 +B-DET
H: +B ON L: +B OFF
I
4.9
4.5
4.5
4.7
63 ACC-DET
H: ACC ON L: ACC
OFF
OFF
I
4.9
4.5
4.5
4.7
64 T.EJECT
H: Tape eject key off
L: Tape eject key on
L: Tape eject key on
I
4.9
4.6
4.6
4.8
65 CD-EJECT H: CD eject key off
L: CD eject key on
I
4.9
4.6
4.6
4.9
66 NC
-
-
-
-
-
-
67 NC
-
-
-
-
-
-
68 VDD
+5V Power supply
-
4.8
4.8
4.8
4.8
69 X2
Ceramic oscillator
6.29MHz
6.29MHz
-
2.3
2.3
2.3
2.3
70 X1
Ceramic oscillator
6.29MHz
6.29MHz
-
2.1
2.1
2.1
2.1
71 GND
Ground
-
0
0
0
0
72 XT2
Crystal oscillator
32.8kHz
32.8kHz
O
2.6
2.6
2.6
2.6
73 XT1
Crystal oscillator
32.8kHz
32.8kHz
I
2.4
2.4
2.4
2.4
74 AVDD
A/D convertor analog
power supply
power supply
-
4.8
4.8
4.8
4.8
75 ACC 5V
A/D convertor
reference voltage
reference voltage
-
4.8
4.8
4.9
4.8
76 MAIN VOL Main volume analog
input
I
0
0
0
0
77 VSM
AM signal meter
input
input
I
0.5
0.9
0.3
0
78 NC
-
-
-
-
-
-
79 DI
LCD deta output
O
0
0
0
0
80 CLK
LCD clock input
I
0
0
0
0
10 TERMINALS DESCRIPTION
10
CQ-JS6930A1S
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