Read Sony BMZ-K7D / CX-BK7 Service Manual online
CX-BK7
41
41
7-4.
BLOCK DIAGRAM – AMP Section –
J
(Page 40)
FRONT-L
CASCADE
Q511, 513, 515
PRE DRIVE
Q517
CURRENT
MIRROR
Q521, 523
BIAS
Q507, 509
FINAL DRIVE
Q531, 533
OVER LOAD
DETECT
Q505
R-CH
+
+
OVER LOAD
PROTECT
Q013
POWER
PROTECT
Q012
+
R-CH
+
+
TH501, 502
+
THERMAL
DETECT
Q610, 611
R-CH
–VL
–VP
+VP
–VH
OUTPUT LEVEL
DETECT
Q623, 624
OUTPUT LEVEL
DETECT
Q620, 621
SWITCHING
Q617, 619, 622
R-CH
+
+VL
+VH
SWITCHING
Q618
R-CH
L
(Page 40)
REAR-L
CASCADE
Q109, 111, 113
PRE DRIVE
Q101
CURRENT
MIRROR
Q105, 107
BIAS
Q117, 119
FINAL DRIVE
Q125, 127
OVER LOAD
DETECT
Q129
R-CH
+
+
OVER LOAD
PROTECT
Q281
POWER
PROTECT
Q282
R-CH
+
TH101,
102, 302
+
THERMAL
DETECT
Q291, 292
R-CH
–SVL
–SVP
+SVP
–SVH
OUTPUT LEVEL
DETECT
Q234
SWITCHING
Q232, 235
R-CH
+
–SVP
+SVP
+SVL
+SVH
SWITCHING
Q231, 233
R-CH
M
(Page 40)
CENTER
CASCADE
Q310, 312, 314
PRE DRIVE
Q302
CURRENT
MIRROR
Q306, 308
BIAS
Q318, 320
FINAL DRIVE
Q322, 324
OVER LOAD
DETECT
Q330
R-CH
FAN MOTOR
ON/OFF SWITCH
Q301 – 305
M301
(FAN)
(FAN)
M
+
J521
PHONES
JK502
FRONT
SPEAKER 5
+
–
–
–
+
+
L
R
R-CH
R-CH
FRONT SPEAKER
ON/OFF RELAY DRIVE
Q530
RY501
R-CH
J503
SURROUND
SPEAKER 5
SPEAKER 5
L
R
CENTER
SPEAKER 5
J504
HEADPHONE
Q
(Page 42)
DVD ON
P
(Page 40)
O-POWER
R
(Page 42)
POWER MONITOR
S
(Page 42)
POWER
MONITOR
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: DVD PLAY
: TUNER
DC DETECT
Q105, 106
VOLTAGE
DETECT
Q107 – 109
Click on the first or last page to see other BMZ-K7D / CX-BK7 service manuals if exist.