Alignment Instructions; Package And Ic Block Diagram; Schematic Diagram (Display Block) - Panasonic CQ-2650EU Service Manual

Heavy duty cassette/weatherband receiver with changer control
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TERMINALS DESCRIPTION (Display Block)
MiC901
YEAMSM6786Q
22
SEG22
_|LCD segment
data 22
P=
Do
=
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| — |
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Test
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2024]
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[ PinNo.[
Name
|
Description
170 | Vol(v)
Description
[a | seating |S
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2
LCD segment data 2
26
30
LCD segment data 29
3
LCD segment data 3
31
Key Control 0
4
LCD segment data 4
ie)
32
Key Control 4
5
LCD segment data 5
oO
33
Key Control 2
6
LCD segment data 6
ie)
34
Key Control 3
7
LCD segment data 7
10)
35
C4 (NC)
3
ia
LOD segment data 1
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a
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LOD segment data 11
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LCD segment data 20
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24
15V Power Suppy
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| 26 |
| 26 |
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LCD segment data 27
ALIGNMENT
INSTRUCTIONS
1. HEAD HEIGHT ALIGNMENT
Alignment
e Temporarily tighten the Head
mounting
screws
}
bees
(Right and Left) to the position shown Figure 1.
F
cai
elnsert the Test Tape into the set, and press the
Head
Height MEO
Mounting screws}
play button (Keep power off).
irror)
(Right and Left) | ¢Adjust the height to the Head to be as shown in
Figure 2 as viewed in front of the mirror, using the
,
Head mounting screws.
Note
: © Test Tape No. : QZZCRD
@ Make sure that the head cores are even top and bottom.
HEAD SPRING
PLATE
Fig. 1
Fig. 2
2. HEAD AZIMUTH ALIGNMENT
Input
VM
Terminal
| Connection
Alignment
Item
Remarks
Test Tape
e Adjust for maximum output.
e Use ® Screw driver.
Head
Head
TCC-153
Playback
Speaker
Azimuth
Azimuth
Head
Terminals | Adjustment
Screw
PACKAGE AND IC BLOCK DIAGRAMS
MP50
YEAU4CMXU01 [E-4C149]
MIX
7
PNL
RF
MIX
IF
Osc
AGC
Mi
*
cr
5
|
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n
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FM POWER
AM
POWER
aoe
Wic271
YEAMTDA85680 [E-4C149]
MODE
VP1
VP2
vP3
VP4
Reference
Voltage
21/5
9
=
|/3])9]/
©
Fd
S
=
=
a
a
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5
=
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=
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2])
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SLSHellel
OH SHSH
Si
Sel]
Cu
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Cilia
s
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a
ce
>
>
=
<=
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<
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c
a
ir
SCHEMATIC DIAGRAM (Display Block) mopELs CQ-2650EU/2500CEU ——
| rp
;
sv>
SV
To
vDD
Reference
D Voltage
PGND1
PGND3
PGND2
PGND4
Main Block
DO
CNS801
CLK
D905
D909
SLR332MGT31 SLR342MGT31
D906
D910
SLR342MGT31 SLR342MGT31
D907
D911
SLR342MGT31 SLR342MGT31
ra
w¥3 OWE OME AMEE!
ot
*Ljo
DsI6
D9I5
RQ08
D917
eee
ey
D902
Gees
Cal
MA8056LMHTX —
8
D901
2
3
SLR342VRT31 s
g
-
Zs
oO
(=)
8
=
=
ee
(3) sees.
[84
AVION, 10ms/DIV
ae
Ss
se
IY TY
(6) sees
D901!
AA
Bibenbassadiee
SSOONGOSTSSe
Baie
> ee 3) =
8
IV/DIV, tms/DIV
4
[cgsol
QVIDIV, 10ms/D]
a
ee
ee
2VIDIV, 10ms/DIV
s8
ra
en one |
Lf
MF

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