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Land Rover Discovery Lhd Models Etm 1995 4th Edition Exp Rover Manual
Land Rover Discovery Lhd Models Etm 1995 4th Edition Exp Rover Manual
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![Page 187
ELECTRICAL TROUBLESHOOTING MANUAL
ETM E7
Radio (NAS)
3
DISCOVERY
0 [1]C268
0.5 UG3
1
5
0.5 B 0.5 B
2
C2056 4C2056 0.5 RN
X233
Radio Tune
Switch
0.5 RG4
1
5
0.5 B 0.5 B
2
C2057 4C2057 0.5 RN
X234
Radio Waveband
Switch
S217
E201
See Ground Dis-
tribution Interior Lamps Interior LampsZ111
Radio
0 [1]](http://img.usermanuals.tech/thumb/2848/48434/w64_discovery-lhd-models-etm-1995-4th-edition-exp-rover-186.png "Page 187
ELECTRICAL TROUBLESHOOTING MANUAL
ETM E7
Radio (NAS)
3
DISCOVERY
0 [1]C268
0.5 UG3
1
5
0.5 B 0.5 B
2
C2056 4C2056 0.5 RN
X233
Radio Tune
Switch
0.5 RG4
1
5
0.5 B 0.5 B
2
C2057 4C2057 0.5 RN
X234
Radio Waveband
Switch
S217
E201
See Ground Dis-
tribution Interior Lamps Interior LampsZ111
Radio
0 [1]")
![Page 188
ELECTRICAL TROUBLESHOOTING MANUA L
E7 ETM
Radio (NAS)
4
DISCOVERY
0 [1]C268
0.5 NY1
1
5
0.5 B 0.5 B
2
C2058 4C2058 0.5 RN
X235
Radio Volume Up
Switch
0.5 U2
1
5
0.5 B 0.5 B
2
C2059 4C2059 0.5 RN
X236
Radio Volume
Down Switch
S277
E201
See Ground Dis-
tribution Interior Lamps Interior LampsZ111
Radio
0 [1]](http://img.usermanuals.tech/thumb/2848/48434/w64_discovery-lhd-models-etm-1995-4th-edition-exp-rover-187.png "Page 188
ELECTRICAL TROUBLESHOOTING MANUA L
E7 ETM
Radio (NAS)
4
DISCOVERY
0 [1]C268
0.5 NY1
1
5
0.5 B 0.5 B
2
C2058 4C2058 0.5 RN
X235
Radio Volume Up
Switch
0.5 U2
1
5
0.5 B 0.5 B
2
C2059 4C2059 0.5 RN
X236
Radio Volume
Down Switch
S277
E201
See Ground Dis-
tribution Interior Lamps Interior LampsZ111
Radio
0 [1]")
ELECTRICAL TROUBLESHOOTING MANUAL ETM E7 Radio (NAS) 7 DISCOVERY + ± Z175 Radio Amplifier 17 1.0 BN K145 Right Rear Speaker + ±K143 Left Rear Speaker 7 1.0 BW18 1.0 BO 1 8 1.0 BY 215 1.0 BU 10 5 1.0 BG 3 C212 C2054 1 C428 1 C427 1 C429 1 C430 1.0 BW1.0 B + ±K142 Left Front Speaker 1 C518 1 C515 16 1.0 BR 6 1.0 BK 1.0 B + ±K144 Right Front Speaker 1 C618 1 C615 1.0 BW 12C5101 2C610
ELECTRICAL TROUBLESHOOTING MANUA L E7 ETM Radio (NAS) 8 DISCOVERY R F 3 10 A 5 C437 P126 Fascia Fuse Box See Fuse Details 1 C229 0.5 LGO 45 Z175 Radio Amplifier 10 1.0 B 13 S2024 12C2054 32 Z176 Subwoofer Amplifier 6 E401 See Ground Dis- tribution C413 + ±+ ± 0.5 B C412 1 C277 1.0 LGO 0.5 PY BE7-2 E205 1 7 56C212 312C437 C412 S418 Z199 Subwoofer Amplifier Shield See Ground Dis- tribution 0.5 R 0.5 B K146 Subwoofer 0.5 B 4
RADIO (NAS) 9 ETM E7 DISCOVERY ELECTRICAL TROUBLESHOOTING MANUAL TROUBLESHOOTING HINTS 12. Check fuses F6 of Satellite Fusebox 2 (P128) and F3 of Fascia Fusebox (P126). 13. Check that Radio (Z111) connectors and coaxial cable are tight and properly connected. 14. For proper Radio (Z111) noise diagnosis, take the vehicle outside where signals are strong. Close the hood and keep away from metal buildings or other sources of Radio interference. 15. If Radio (Z111) noise is excessive when an accessory is on, install a Radio noise suppression capacitor to the power lead of that accessory. 16. If Radio (Z111) noise is excessive at all times, check antenna wiring. If OK, check spark plugs, spark plug wiring and wiring close to the ignition system which could transmit noise to the Radio (Z111) wiring. 17. If only the CD Changer does not operate, check power, ground, and DIN Cable. If OK, check Radio and CD Changer. 18. If the Radio (Z111) is inoperative and `code is being shown on the display, follow the instructions below. 19. If Radio scans past all frequencies when in seek mode and hiss is present over most stations, substitute antenna with a known good antenna. If the reception is still inadequate, replace Radio. Security Code Instructions 1. Obtain 5±digit security code from vehicle owner or manufacturer. 2. Enter the code number using the Radio (Z111) push±button selectors. NOTE: If the correct code is not entered in 3 successive attempts, the Radio (Z111) will not accept another entry until the Radio has been left on for 1 hour with the ignition on. NOTE: When entering the code, be sure to complete the sequence numbering of that 5±digit code even if you made a mistake. For example, if the correct code number sequence is 43215 and you mistakenly enter 42 instead of 43, continue the code number sequence of 215 to complete that entry. A `beep will sound, `code will still be displayed and the Radio will not operate. Re±enter the correct code 43215 and the Radio will operate.NOTE: If an audible `beep is heard while entering the code, STOP immediately. Begin entering the code again, starting with the first number of the 5±digit code. NOTE: If a push±button is touched accidentally when the ignition is off, a warning tone will sound. Turn the ignition on and the tone will stop.
RADIO (NAS) 10 E7 ETM DISCOVERY ELECTRICAL TROUBLESHOOTING MANUA L 1. If the Radio (Z111) does not operate at all, do Test A. 2. If VF display does not dim when head lamps or park lamps are turned on, do Test B. 3. If one or more speakers do not operate, do Test C. 4. If the Radio (Z111) appears to operate properly, but the Subwoofer (K146) and/or none of the Speakers operate, do Test D. 5. If the Subwoofer (K146) does not operate, do Test E. 6. If none of the Remote Radio Waveband, Tune, Volume Up, or Volume Down Switches operate for the Mid Line Radio, do Test J. 7. If the Radio Waveband Switch (X234) does not operate, do Test F. 8. If the Radio Tune Switch (X233) does not operate, do Test G. 9. If the Radio Volume Up Switch (X235) does not operate, do Test H. 10. If the Radio Volume Down Switch (X236) does not operate, do Test I.
# ELECTRICAL TROUBLESHOOTING MANUAL ETM E7 Radio (NAS) 11 DISCOVERY ! % ! % Z111 Radio Z111 Radio ! % ! % # # ( ( ( # ( &$ ( &$ ( Radio ( $%
ELECTRICAL TROUBLESHOOTING MANUA L
E7 ETM
Radio (NAS)
12
DISCOVERY
()
()
,
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J2120
Speaker
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& !
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Z111
Radio
,
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ELECTRICAL TROUBLESHOOTING MANUAL ETM E7 Radio (NAS) 13 DISCOVERY !&!# (!& !&!# (!& !$ !$ ) ) ) !$ ) % ) % ) !$ %& K187 Power Amplifier Relay Z175 Radio Amplifier !$ ) Radio ) !# R180002 R050001
ELECTRICAL TROUBLESHOOTING MANUA L
E7 ETM
Radio (NAS)
14
DISCOVERY
Z175
Radio Amplifier
Z175
Radio Amplifier
%
Power Amplifier
Relay
# ! $ #
%
%
# ! $ #
Z111
Radio
%
R180002
R180002
ELECTRICAL TROUBLESHOOTING MANUAL
ETM E7
Radio (NAS)
15
DISCOVERY
$!(!%$ )!(
Z111
Radio
Z111
Radio
$!(!%$ )!(
! *
*
!
!% #&! !
Z175
Radio Amplifier
! *
ELECTRICAL TROUBLESHOOTING MANUA L E7 ETM Radio (NAS) 16 DISCOVERY )* %*&% +* ! ( , ( , Z111 Radio Z175 Radio Amplifier %*&% +* ! ( , ( , Z176 Subwoofer Amplifier V & , & $# ( ,