Speaker Circuit
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit
- Speaker Circuit
DESCRIPTION
* The stereo component amplifier sends sound signals to the speakers (for 10 speaker with sub-woofer).
* The radio receiver sends sound signals to the speakers (for 6 speaker).
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CONFIRM MODEL
Result
B -- CHECK SPEAKER
A -- Continue to next step.
2. CHECK SPEAKER
(a) Check the malfunctioning speakers.
Result
D -- INSPECT AMPLIFIER BOX SPEAKER ASSEMBLY
C -- INSPECT REAR SPEAKER ASSEMBLY
B -- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
A -- Continue to next step.
3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Disconnect the H4 and G4 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (AMPLIFIER BOX SPEAKER ASSEMBLY - FRONT NO. 1 SPEAKER)
(a) Disconnect the H4 and G4 speaker connectors.
(b) Disconnect the K9 box speaker connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. INSPECT AMPLIFIER BOX SPEAKER ASSEMBLY
(a) Remove the amplifier box speaker assembly Removal.
(b) Remove the stereo component amplifier assembly from the amplifier box speaker assembly Removal.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE AMPLIFIER BOX SPEAKER ASSEMBLY Removal
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
6. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
(a) Disconnect the F3 and F4 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
7. CHECK HARNESS AND CONNECTOR (AMPLIFIER BOX SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER)
(a) Disconnect the F3 and F4 speaker connectors.
(b) Disconnect the K9 box speaker connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
8. INSPECT AMPLIFIER BOX SPEAKER ASSEMBLY
(a) Remove the amplifier box speaker assembly Removal.
(b) Remove the stereo component amplifier assembly from the amplifier box speaker assembly Removal.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE AMPLIFIER BOX SPEAKER ASSEMBLY Removal
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
9. INSPECT REAR SPEAKER ASSEMBLY
(a) Disconnect the L9 and L18 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE REAR SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
10. CHECK HARNESS AND CONNECTOR (AMPLIFIER BOX SPEAKER ASSEMBLY - REAR SPEAKER)
(a) Disconnect the L9 and L18 speaker connectors.
(b) Disconnect the K9 box speaker connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
11. INSPECT AMPLIFIER BOX SPEAKER ASSEMBLY
(a) Remove the amplifier box speaker assembly Removal.
(b) Remove the stereo component amplifier assembly from the amplifier box speaker assembly Removal.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE AMPLIFIER BOX SPEAKER ASSEMBLY Removal
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
12. INSPECT AMPLIFIER BOX SPEAKER ASSEMBLY
(a) Remove the amplifier box speaker assembly Removal.
(b) Remove the stereo component amplifier assembly from amplifier box speaker assembly Removal.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE AMPLIFIER BOX SPEAKER ASSEMBLY Removal
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
13. CHECK SPEAKER
(a) Check the malfunctioning speakers.
Result
C -- INSPECT ROOF SPEAKER ASSEMBLY
B -- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
A -- Continue to next step.
14. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Disconnect the H4 and G4 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
15. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 1 SPEAKER)
(a) Disconnect the H4 and G4 speaker connectors.
(b) Disconnect the E41 receiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE RADIO RECEIVER ASSEMBLY Removal
16. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
(a) Disconnect the F3 and F4 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
17. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 2 SPEAKER)
(a) Disconnect the F3 and F4 speaker connectors.
(b) Disconnect the E41 receiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE RADIO RECEIVER ASSEMBLY Removal
18. INSPECT ROOF SPEAKER ASSEMBLY
(a) Disconnect the R4 and R5 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE ROOF SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
19. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - SPEAKER CONDENSER)
(a) Disconnect the E42 receiver connector.
(b) Disconnect the E27 condenser connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
20. CHECK HARNESS AND CONNECTOR (SPEAKER CONDENSER - ROOF SPEAKER)
(a) Disconnect the E27 condenser connector.
(b) Disconnect the R4 and R5 speaker connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH Side
for RH Side
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
21. REPLACE SPEAKER CONDENSER
(a) Temporarily replace the condenser with a new or normally functioning one.
(b) Check that the sound is normal.
OK:
Sound is normal.
NG -- REPLACE RADIO RECEIVER ASSEMBLY Removal
OK -- END (SPEAKER CONDENSER IS DEFECTIVE)