User Guide

37
S-302
● DSW-S302
1. 1U-3811 (D.AMP/SMPS UNIT)
(1) アンプ
リセット信号の確認
･ (IC208 4pin）
"H" レベル ( 約 3.3V)
N.G.
以下部品（周辺）の状態・半田付けチェック
･ [IC208] (BD4730)
･ [IC201] 9pin 周辺 (TAS5066PAGRG4)
その他この部品につながる回路
O.K.
クロック波形の確認？
･ (IC201 2pin)
･ (IC203 15pin)
･ (IC204 15pin)
( 波形 1」を参照
N.G.
以下部品（周辺）の状態・半田付けチェック
･ [X201] (X-TAL)
･ [IC202] (SN74HCU04APWR)
･ [IC201] 2pin 周辺 (TAS5066PAGRG4)
･ [IC203] 15pin 周辺 (PCM1803DBR)
･ [IC204] 15pin 周辺 (PCM1803DBR)
その他この部品につながる回路
O.K.
PWM 信号波形の確認
･ (IC206 4,5,6pin)
･ (IC206 14,15,16pin)
･ (IC207 2,4,17pin）
「波形２」を参照
N.G.
以下部品（周辺）の状態・半田付けチェック
･ [IC201] 全てのピン (TAS5066PAGRG4)
その他この部品につながる回路
O.K.
デジタルアンプキャリア波形の確認
･ (IC206 33,30pin）
･ (IC206 26,22pin）
･ (IC207 29,25pin）
「波形３」を参照
N.G.
以下の部品の状態・半田付けチェック
･ [IC206] 全てのピン (TAS5142DKD)
･ [IC207] 全てのピン (TAS5121DKDR)
その他この部品につながる回路
O.K.
スピーカーリレーの確認
･ (RL201,RL202）
切り替わっているか？
N.G.
以下部品（周辺）の状態・半田付けチェック
･ [RL201,RL202] (DS2SU12VDC)
･ [TR205] (KRC102S)
･ [TR206] (TR206)
その他この部品につながる回路
O.K.
Ａ ／ Ｄ 信号波形の確認
･ (IC201 24,23,21,19)
「波形４∼６」を参照
N.G.
以下の部品の状態・半田付けチェック
･ [IC203] (PCM1803DBR)
･ [IC204] (PCM1803DBR)
その他この部品につながる回路
O.K.
入力回路の確認
･ (IC101 1,7)
･ (IC102 1,7)
･ (IC103 1,7)
DC が出ていない
入力信号がレベル変換されて出ている
N.G.
以下の部品の状態・半田付けチェック
･ [IC101] (RC4580)
･ [IC102] (RC4580)
･ [IC103] (RC4580)
その他この部品につながる回路
O.K.
終了
● DSW-S302
1. 1U-3811 (D.AMP/SMPS UNIT)
(1) AMPLIFER
Check Reset signal.
(IC208 4pin)
"H" level (About 3.3V)
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [IC208] (BD4730)
• [IC201] circumference of 9pin(TAS5066PAGRG4)
Also circuits connected to this part
O.K.
Check Clock waveform.
• (IC201 2pin)
• (IC203 15pin)
• (IC204 15pin)
Refer (waveform 1)
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [X201] (X-TAL)
• [IC202] (SN74HCU04APWR)
• [IC201] circumference of 2pin(TAS5066PAGRG4)
• [IC203] circumference of 15pin(PCM1803DBR)
• [IC204] circumference of 15pin(PCM1803DBR)
Also circuits connected to this part
O.K.
Check PWM sginal waveform.
• (IC206 4,5,6pin)
• (IC206 14,15,16pin)
• (IC207 2,4,17pin)
Refer (waveform 2)
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [IC201] ALL pin (TAS5066PAGRG4)
Also circuits connected to this part
O.K.
Check Digital amp carrier waveform.
• (IC206 33,30pin)
• (IC206 26,22pin)
• (IC207 29,25pin)
Refer (waveform 3)
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [IC206] ALL pin (TAS5142DKD)
• [IC207] ALL pin (TAS5121DKDR)
Also circuits connected to this part
O.K.
Check Speaker relay.
• Is (RL201,RL202) switched?
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [RL201,RL202] (DS2SU12VDC)
• [TR205] (KRC102S)
• [TR206] (TR206)
Also circuits connected to this part
O.K.
Check A/D signal waveform.
• (IC201 24,23,21,19)
Refer (waveform 4-6)
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [IC203] (PCM1803DBR)
• [IC204] (PCM1803DBR)
Also circuits connected to this part
O.K.
Check Input circuit.
• (IC101 1,7)
• (IC102 1,7)
• (IC103 1,7)
No DC produced
Input signal output with level converted
N.G.
Check the following parts (and surrounding area) and
their soldering.
• [IC101] (RC4580)
• [IC102] (RC4580)
• [IC103] (RC4580)
Also circuits connected to this part
O.K.
END