飞利浦philips 29PT8319/93R 开机后保护红灯闪四下是什么原因?

wuyunhong

飞利浦philips pt7319/93r因天气潮湿打火后，自动关机，开机后有高压声立即保护，红灯闪四次，过几秒再闪四次，这是什么原因引起保护？急！！！

天天泡坛子

一般是场保护

wuyunhong

是一sbb板有问题的

东莞极地联盟

误码4代表是5V保护，基本可以断定是SSB板有问题。
; Y8 \- [2 S1 }8 N1 ?5 ^) O       
自己看下手册的说法：
       

6 Y* G. N  @7 W- `       
, P* h' Q( ?  a% u) v/ _: ~Error 4
When the +5 V protection is active, the set is switched to
8 T  u8 w  d8 T% j8 Tprotection and error code 4 is placed in the error buffer. The
  i3 y0 X* |7 D: Z, wLED will blink 4 times (repeatedly). A 5 V failure can cause
a drop in the 5 V supply output, resulting in an undefined
$ a9 c5 x( e# F( [behaviour of the set. Therefore, some I2C devices (Tuner
2 M4 M1 P+ Y5 P8 {and MSP) connected to the 5 V supply are constantly
monitored. When none of these devices responds to the
micro controller for a prolonged time, the micro controller
assumes that there is a failure in the 5 V supply. By starting
up the set via grounding of the FRONT_DETECT-line (on the
side I/O), the +5 V protection will be overruled and it will be
easier to determine the cause. The +5V protection will be
activated when these I2C devices fail (no I2C
; [6 [6 }3 o1 Z, g! i) c* s7 gcommunication):
– Main Tuner (pos. 1200 on the LSP),
– MSP34xx sound processor (pos. 7651 on the SSB).

孙坚

就是场保护