Panasonic SAXR55 - A/V RECEIVER, Service Manual

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for Tuner Control
Pin
No.
Mark I/O Function
45 TUN_CE O CE Output for tuner
46 SEL/TN/ /
DA_CK
I/O Input Selector and Tuner
Control : Clock
47 SEL/TN/ /
DA_DT
I Input Selector and Tuner
Control : Data
48 SEL_ST I/O Input Selector Control :
Strobe
49 F_OE O To rewrite P ROM :
ENABLE
50 FL/LED_CK I/O FL & LED Driver Control :
Clock
51 FL/LED_DT O FL & LED Driver Control :
Data
52 FL_ST O FL Driver Control : Strobe
53 FLD_RST O RESET for FLD driver
54 DUAL_DRV O DUAL DRIVE control
55 A/D_ATT I/O A/D attenuator Control
56 SHORT /
_DET
I Output Short Detection
(OVERLOAD)
57 VCC - +5V power supply
58 VREF - VCC Connected
59 AVSS - GND Connected
60 THRM_DET I Thermal Warning Detection
/ (CLIPPER)
61 SEL_ENC_A I Input Selector Encoder A
62 SEL_ENC_B I Input Selector Encoder B
63 KEY2 I Key input 2
64 KEY1 I Key input 1
18. Parts Location and Replacement Parts List
Notes:
- Important safety notice:
Components identified by mark have special characteristics
important for safety.
Furthermore, special parts which have purposes of fire-retardent
(resistors), high-quality sound (capacitors), low noise (resistors),
etc are used.
When replacing any of these components, be sure to use only
manufacturer’s specified parts shown in the parts list.