Inspection Procedure

1. Disconnect the R19 display connector
2. Using an oscilloscope, check the signal waveform between each terminal and the body ground according to the conditions, as shown in the chart below Measurement condition
   ITEM CONTENT
   
   

   Item	Content
   Terminal No (Symbols)	NTSC (R19-9) - Body ground
   Tool Setting	0 2V/DIV, 10 μsec/DIV
   Condition	DVD is played on radio receiver

   OK: Waveform is as shown in the illustration. 

   Fig 1: Identifying R19 Connector With Waveform (Television Display Assembly - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 2 

OK: REPLACE TELEVISION DISPLAY ASSEMBLY  (See REMOVAL  )

1. Disconnect the R30 controller connector.
2. Disconnect the R19 display connector.
3. Measure the resistance according to the value(s) in the table below

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   R30-5 (NTS3) - R19-9 (NTSC)	Always	Below 1 Ω
   R30-4 (SGN3) - R19-10 (SGN1)
   R30-19 (SLDC) - R19-8 (SLD)
   R30-5 (NTS3) - Body ground	Always	10 kΩ or higher
   R30-4 (SGN3) - Body ground
   R30-19 (SLDC) - Body ground

   Fig 2: Identifying R19 Ansd R30 Connectors (Multi-Display Controller - Television Display Assembly)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MULTI-DISPLAY CONTROLLER  (See REMOVAL  )