Read Sony DAV-LF1H / SA-TSLF1H / SS-CTLF1H / SS-TSLF1H / SS-TSLF1HW Service Manual online
3
SA-TSLF1H/SS-CTLF1H/TSLF1H/TSLF1HW
SECTION 1
SERVICING NOTES
[AMP Board Input Signal Check Procedure]
Note 1:
Connect the SA-WSLF1H to the HCD-LF1H. Set up the system so that the infrared signal from IR transmitter (DIR-T1) can be received by the
rear speaker (SA-TSLF1H).
rear speaker (SA-TSLF1H).
Note 2:
The IR status indicator of this unit (SA-TSLF1H) lights in red when the power of the SA-WSLF1H receiving waiting state (when data is not
transmitted.) When the power of the SA-WSLF1H is turned on and the infrared signal from IR transmitter (DIR-T1) is received by this unit (SA-
TSLF1H), the IR status indicator of this unit (SA-TSLF1H) lights in green.
transmitted.) When the power of the SA-WSLF1H is turned on and the infrared signal from IR transmitter (DIR-T1) is received by this unit (SA-
TSLF1H), the IR status indicator of this unit (SA-TSLF1H) lights in green.
Check procedure:
1. Connect a spectrum analyzer and an oscilloscope to the connector CN7301 pin-1 of DIAT PD board.
2. Confirm that the spectrum is displayed as shown in Fig. 1 on spectrum analyzer. Also confirm that the waveform as shown in Fig. 2
is displayed.
4.5MHz
↓
Fig. 1
Fig. 2
IR receiver diode (D7301-D7304)
DIAT PD board
DIAT PD board
CN7301
1
pin
Infrared
Transmission
Transmission
Spectrum analyzer
or Oscilloscope
or Oscilloscope
IR transmitter
(DIR-T1)
Subwoofer
(SA-WSLF1H)
* In the case of DIR-R3 is connected, the connector CN7301 pin-1 of
DIAT PD board is checked.
SPK JACK board
DIAT AMP board
Refer to figure, and inspect the DIAT AMP board.
•
SERVICING POSITION (DIAT AMP BOARD)
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