Block Diagram; Terminals Description - Panasonic CQ-2650EU Service Manual

Installation Guide continue
Hf Using the Rear Support Strap ©
Affix one end of the Rear Support Strap © to the rear of the unit, and the other end to the Fire Wall of Ve-
hicle, or some other metallic area.
® Plain Washer Fire Wall of Vehicle
BS © Hex. Bolt
Nees \@ Toothed Lock Washer
9 |
S =._@ Hex. Nut
SD
| oo Spring Washer_
2 \® Plain Washer
\® Rear Support Strap
@® Spring Washer
5
aN
Mounting Collar
@ Using the Rubber Cushion (Optional)
(If there Is an existing Rear Support Bracket on the Fire Wall of Vehicle.)
Cover Mounting Bolt on the rear of the unit with Rubber Cushion (Optional), and mount :t into the exist-
ing Rear Support Bracket.
Rear Support Bracket
(existing on the vehicle)
=
é
a
Ne Rubber Cushion (Optional) |
oN Mounting Bolt
in
® Mounting Cotlar_
Installation Guide continue
® This unit can be connected to an optional CD changer (CX-DP 801EUC or CX-DP1200EUC). For details
consult your nearest Panasonic deaiers.
* For connection to a CD changer, refer to the operating instructions of the CD Changer (CX-DP801EUC or
CX-DP1200EUC).
© Fader Controi does not affect the output of the amplifier connected to this unit's preout cord.
Caution:
To prevent damage to the unit, be sure to follow the connection diagram below,
@ Remove the covering of the leads about 5 mm fang from their end before connecting.
® Be sure to connect the ground lead (black) to the vehicle chassis first before connecting the other leads to the
specified wires of the vehicle.
Be sure to insulate any exposed wires from a possible short-circuit from the vehicle chassis. Bundle all cables
and keep cable terminals {ree from touching any metal parts.
CX-DP801EUC
=
r)
{ @
"4
Extension Cord (DINRCA} Re Back
(Yollow) Ground lead ~~
eatrenv p= tas {To a claan, bare metallic
Fuse (3A) Battery Cord part of your vehicle.)
To a constant powor supply
Preamp out White Gray Gray
(Whitey (White) cord og
capt
Red Red
RCA Extension Cord (Red) (Red)
ANTENNA Y,
CD Changer
contron connector
Right
Power Connector BATTERY LEAD
(Connect to vehkee battery)
I piss ACC POWER
(12V OC. negative
SSS ee
Fuse(1GA}
ground onty)
Red
GROUND
a
= (Connect to a clean,
Reststor(1kf) bare metailic pari al
SPEAKER LEAD Black your vehicle)
Dark Blue Amp Relay Contro! Lead
{2--=
Gray wiBlack Stripe Blue
White w/Biack FRONT sP ||| REAR SP
Sinpe Violet wiBlack Stripe
! \
White lcray Green w/Black |}f Green !
Stripo
Viotot
{-) {+} () t+) (+ {-) (+)
LEFT SPEAKER AIGHTSPEAKER = LEFT SPEAKER RIGHT SPEAKER
(FRONT) (FRONT) (REAR) {REAR}
Troubleshooting
3. Plug the Power Connector
Power Connector
To Remove the Unit from the vehicie's dashboard
Insert Dismounting Pins ® and pull doth pins.
® Dismounting Pin
(U-shaped)
Note: Do not lose Dismounting Pins. They will be needed to remove the unit from the vehicle's dashboard.
CQ-2500CEU
—
(
ijt]
BATTERY LEAD
(Connect to vohicle battery}
ACC POWER
bare metallic part of
your vehicle)
White w/Black FRONT SP REAR SP
Stripe
\J White Gray Green wBtack |]| Groen
ripe
i Violet
(-) (+) (4) i) G) )
LEFT SPEAKER RIGHTSPEAKER LEFT SPEAKER RIGHT SPEAKER
(FRONT) (FRONT) (REAR) (REAA}
SPEAKER LEAD
Gray w/Black Stripe
Violet w/Btack Stripe
Troubleshooting continues
Q Notes on Cassette Tapes CaN | ahet
TERMINALS DESCRIPTION (Main Block)
Wice6oo0 YEAM17708556
fone
Battery Detection
Bs ir
< S Ss
-
APE Pin No.
2
Name Description
AMIFC AM IF input
oO
aD EMIN (NC) a
IODE4 (NC) =
o
FMIFC FM IF input
Power supply +5V
D SENS (Connect to ground)
{Connect to ground)
-|~
Z=/9° n
id D m m m
(Connect to ground)
(Connect to ground)
(Connect to ground)
Stereo indicator
Deck metal output H:ON L:OFF
| EG
7 BY im m
ad
31
FM OSG FM OSC input
ha iy
ala
nu] =
wy], rn
4
N
< Oo =)
ut Ww
DOLBY ON/OFF (NC)
DOLBY B/C (NC)
LED (NC)
ACC Detection
| 6 |
1
1
1 MMT-F (CD reset) (Connect to ground)
1
fal >
z 3 =/2/8
oO — m
bd
FM Switch
= Ke)
FM/AM SSC control
wn wal
> w Ni =
oo o wn wn a -
Ps
ut
a
= NLALO
wn
u
0.5
ve)
TAPE SLOW (NC)
8.5
32 |WB OSC WB OSC input
36 |NC (Connect to ground)
37 |MONO (NC) =
40 |BEEP
TAPE EXIST T-in SW input
Tape A/B side detection
45
48 |SYS CNT AMP ST-BY contro!
n o|}s = BLO ny win in of
|
38 |LOC (NC)
Beep Sound Output
41 |CD CLK2 (NC) _
46 Head SW change over detection
MUTE Mute output("L": mute ON)
o|als
ay
wlll
4
5
6
7
8 |RADIO ON Power supply, AM/FM Tuner
i
'0
1
2
3
4
2: TEL MS (NC)
2
2
| o |
Eek
Lr e
[24 | pe
| = |
za
pt |
NIT B (Pull-down)
26 FM SD input
27 AM SD input Nn o;o >| 2 </=
oO
<2]
So
| Tape Head 6)
ez ©
Fs 1@
A/B ()
TAPE EQ
=
ow
BLOCK DIAGRAM wmobeELs CQ-2650EU/2500CEU
SS Se pT
|
|
|
| P50
|
|
|
|
|
|
|
|
| WEATHER BAND
4 P10
|
|
|
I
34 |E01 FM /AM VT output
35 |E02 (NC) _
39 1(NC)
2 |CDC STB CD changer Strobe
a7_[Pwont
)
fe) =] u
=
(e)
z Z is)
PL ON (NC)
52
53
54
CDC SELECT (NC)
MONOCNT(NC)
Pre oO
w a
Ie) o Q = = Zz 2
(CQ-2650EU)
Q201
RADIO
OSC. IF SSC. SD
34
a
hall iad N [oO
L . [ AF AMP |_t #£
Q304
DIODE TONE
SWITCH oe:
AF AMP 234 | ach £
POWER
SWITCH
("WB _) Q706-708
VT LPF (|
Q404
z
sla} nia} a
6
>is °
NL wn
Pars al N|N
[m
gf Z VOL
Zo ¢
TRE BAS
MUTI
a6
'
TAPE
SYS CNT
AM/FM RADIO
17 18 19 46 49 46