Sony HAP-Z1ES Service Manual page 70

HAP-Z1ES
• Waveforms
– MAIN Board – – FPGA DSP Board –
IC202 1 (BST) IC601 qd (XTAL)
1 qa
6.6 Vp-p
2.6 s
2 V/DIV, 1 s/DIV
IC602 4 (XTLO) IC601 r; (DAI-P13)
2 qs
0.8 Vp-p
40 ns
500 mV/DIV, 10 ns/DIV
3 IC701 4 (SW) qd IC601 ra (DAI-P07)
35.2 Vp-p
980 ns
10 V/DIV, 500 ns/DIV
qf IC601 rk (DAI-P06)
IC601 rl (DAI-P05)
qg
– U-COM Board –
IC7002 rk (XTALO)
ea
1.9 Vp-p
250 ns
1 V/DIV, 100 ns/DIV
HAP-Z1ES
– AUDIO Board –
IC101 1
wa
3.9 Vp-p
44.2 ns
99.5 ns
2 V/DIV, 50 ns/DIV 2 V/DIV, 20 ns/DIV
ws IC101 7
3.8 Vp-p
356 ns
44.4 ns
2 V/DIV, 200 ns/DIV 2 V/DIV, 20 ns/DIV
wd IC102 qd (Q1)
3.6 Vp-p
177 ns
22.8 s
2 V/DIV, 100 ns/DIV
2 V/DIV, 10 s/DIV
wf IC103 4
3.7 Vp-p
44.2 ns 178 ns
2 V/DIV, 20 ns/DIV 2 V/DIV, 100 ns/DIV
3.9 Vp-p
2.8 s
2 V/DIV, 1 s/DIV – DCDC Board –
IC1402 1 (BOOT)
ra
3 s
10 V/DIV, 2 s/DIV
• IC Block Diagrams
– MAIN Board –
IC201 BU33TD3WG-TR
VIN 1
VOLTAGE
–
REFERENCE
+
OVER CURRENT
3.7 Vp-p
PROTECTION
GND 2
THERMAL
SHUTDOWN
STANDBY
STBY 3
4 Vp-p
IC202 BD9329AEFJ-E2
BST 1 VREG
OVER CURRENT
VIN 2
4.4 Vp-p
PROTECT
LVS
SW 3
LVS
GND 4
4.3 Vp-p
IC204 MM3464A33NRE
VDD 1
GND 2
VOLTAGE
REFERENCE
CE 3
19.5 Vp-p
70 70
5 VOUT
4 NC
VCC
OSC VREF
SOFT
START
IBIAS
UNDER VOLTAGE
S
LOCK OUT
THERMAL ERROR
DRIVE
SLOPE
SHUTDOWN AMP
LOGIC
R PWM
CURRENT 5 VOUT
LIMIT
4 NC
+
BIAS
8 SS
7 EN
6 COMP
5 FB