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。
       
: ^) ?9 D) u3 ~3 n/ r' c! F自己看下手册的说法：
       

2 E( Q: i. s1 P6 F       
Error 4
- T* Z& r; G2 k. r/ SWhen the +5 V protection is active, the set is switched to
protection and error code 4 is placed in the error buffer. The
# P8 C2 H% k9 P. HLED will blink 4 times (repeatedly). A 5 V failure can cause
a drop in the 5 V supply output, resulting in an undefined
behaviour of the set. Therefore, some I2C devices (Tuner
and MSP) connected to the 5 V supply are constantly
monitored. When none of these devices responds to the
) p4 S2 o( L# @1 imicro controller for a prolonged time, the micro controller
$ }/ K5 @8 U% t1 z, O- vassumes that there is a failure in the 5 V supply. By starting
up the set via grounding of the FRONT_DETECT-line (on the
9 E4 [4 Y# ~+ t) ]1 Rside I/O), the +5 V protection will be overruled and it will be
% n7 Z% g% _9 b! K+ e& h/ g7 M4 U# n3 Yeasier to determine the cause. The +5V protection will be
8 ~* U8 z# |8 ]" u( z# ~0 Factivated when these I2C devices fail (no I2C
% V) B2 f4 S6 Q2 L3 Xcommunication):
– Main Tuner (pos. 1200 on the LSP),
– MSP34xx sound processor (pos. 7651 on the SSB).

孙坚

就是场保护